diff options
Diffstat (limited to 'indra/llui')
| -rw-r--r-- | indra/llui/lltextbase.cpp | 5678 |
1 files changed, 2839 insertions, 2839 deletions
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp index c72cdba263..c62d699c7e 100644 --- a/indra/llui/lltextbase.cpp +++ b/indra/llui/lltextbase.cpp @@ -1,2839 +1,2839 @@ -/**
- * @file lltextbase.cpp
- * @author Martin Reddy
- * @brief The base class of text box/editor, providing Url handling support
- *
- * $LicenseInfo:firstyear=2009&license=viewergpl$
- *
- * Copyright (c) 2009, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-
-#include "lltextbase.h"
-
-#include "lllocalcliprect.h"
-#include "llmenugl.h"
-#include "llscrollcontainer.h"
-#include "llstl.h"
-#include "lltextparser.h"
-#include "lltextutil.h"
-#include "lltooltip.h"
-#include "lluictrl.h"
-#include "llurlaction.h"
-#include "llurlregistry.h"
-#include "llview.h"
-#include "llwindow.h"
-#include <boost/bind.hpp>
-
-const F32 CURSOR_FLASH_DELAY = 1.0f; // in seconds
-const S32 CURSOR_THICKNESS = 2;
-
-LLTextBase::line_info::line_info(S32 index_start, S32 index_end, LLRect rect, S32 line_num)
-: mDocIndexStart(index_start),
- mDocIndexEnd(index_end),
- mRect(rect),
- mLineNum(line_num)
-{}
-
-bool LLTextBase::compare_segment_end::operator()(const LLTextSegmentPtr& a, const LLTextSegmentPtr& b) const
-{
- // sort empty spans (e.g. 11-11) after previous non-empty spans (e.g. 5-11)
- if (a->getEnd() == b->getEnd())
- {
- return a->getStart() < b->getStart();
- }
- return a->getEnd() < b->getEnd();
-}
-
-
-// helper functors
-struct LLTextBase::compare_bottom
-{
- bool operator()(const S32& a, const LLTextBase::line_info& b) const
- {
- return a > b.mRect.mBottom; // bottom of a is higher than bottom of b
- }
-
- bool operator()(const LLTextBase::line_info& a, const S32& b) const
- {
- return a.mRect.mBottom > b; // bottom of a is higher than bottom of b
- }
-
- bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const
- {
- return a.mRect.mBottom > b.mRect.mBottom; // bottom of a is higher than bottom of b
- }
-
-};
-
-// helper functors
-struct LLTextBase::compare_top
-{
- bool operator()(const S32& a, const LLTextBase::line_info& b) const
- {
- return a > b.mRect.mTop; // top of a is higher than top of b
- }
-
- bool operator()(const LLTextBase::line_info& a, const S32& b) const
- {
- return a.mRect.mTop > b; // top of a is higher than top of b
- }
-
- bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const
- {
- return a.mRect.mTop > b.mRect.mTop; // top of a is higher than top of b
- }
-};
-
-struct LLTextBase::line_end_compare
-{
- bool operator()(const S32& pos, const LLTextBase::line_info& info) const
- {
- return (pos < info.mDocIndexEnd);
- }
-
- bool operator()(const LLTextBase::line_info& info, const S32& pos) const
- {
- return (info.mDocIndexEnd < pos);
- }
-
- bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const
- {
- return (a.mDocIndexEnd < b.mDocIndexEnd);
- }
-
-};
-
-//////////////////////////////////////////////////////////////////////////
-//
-// LLTextBase
-//
-
-// register LLTextBase::Params under name "textbase"
-static LLWidgetNameRegistry::StaticRegistrar sRegisterTextBaseParams(&typeid(LLTextBase::Params), "textbase");
-
-LLTextBase::LineSpacingParams::LineSpacingParams()
-: multiple("multiple", 1.f),
- pixels("pixels", 0)
-{
-}
-
-
-LLTextBase::Params::Params()
-: cursor_color("cursor_color"),
- text_color("text_color"),
- text_readonly_color("text_readonly_color"),
- bg_visible("bg_visible", false),
- border_visible("border_visible", false),
- bg_readonly_color("bg_readonly_color"),
- bg_writeable_color("bg_writeable_color"),
- bg_focus_color("bg_focus_color"),
- allow_scroll("allow_scroll", true),
- plain_text("plain_text",false),
- track_end("track_end", false),
- read_only("read_only", false),
- v_pad("v_pad", 0),
- h_pad("h_pad", 0),
- clip_partial("clip_partial", true),
- line_spacing("line_spacing"),
- max_text_length("max_length", 255),
- font_shadow("font_shadow"),
- wrap("wrap"),
- use_ellipses("use_ellipses", false),
- allow_html("allow_html", false),
- parse_highlights("parse_highlights", false)
-{
- addSynonym(track_end, "track_bottom");
- addSynonym(wrap, "word_wrap");
-}
-
-
-LLTextBase::LLTextBase(const LLTextBase::Params &p)
-: LLUICtrl(p, LLTextViewModelPtr(new LLTextViewModel)),
- mURLClickSignal(),
- mMaxTextByteLength( p.max_text_length ),
- mDefaultFont(p.font),
- mFontShadow(p.font_shadow),
- mPopupMenu(NULL),
- mReadOnly(p.read_only),
- mCursorColor(p.cursor_color),
- mFgColor(p.text_color),
- mBorderVisible( p.border_visible ),
- mReadOnlyFgColor(p.text_readonly_color),
- mWriteableBgColor(p.bg_writeable_color),
- mReadOnlyBgColor(p.bg_readonly_color),
- mFocusBgColor(p.bg_focus_color),
- mReflowIndex(S32_MAX),
- mCursorPos( 0 ),
- mScrollNeeded(FALSE),
- mDesiredXPixel(-1),
- mHPad(p.h_pad),
- mVPad(p.v_pad),
- mHAlign(p.font_halign),
- mVAlign(p.font_valign),
- mLineSpacingMult(p.line_spacing.multiple),
- mLineSpacingPixels(p.line_spacing.pixels),
- mClipPartial(p.clip_partial && !p.allow_scroll),
- mTrackEnd( p.track_end ),
- mScrollIndex(-1),
- mSelectionStart( 0 ),
- mSelectionEnd( 0 ),
- mIsSelecting( FALSE ),
- mPlainText ( p.plain_text ),
- mWordWrap(p.wrap),
- mUseEllipses( p.use_ellipses ),
- mParseHTML(p.allow_html),
- mParseHighlights(p.parse_highlights),
- mBGVisible(p.bg_visible),
- mScroller(NULL)
-{
- if(p.allow_scroll)
- {
- LLScrollContainer::Params scroll_params;
- scroll_params.name = "text scroller";
- scroll_params.rect = getLocalRect();
- scroll_params.follows.flags = FOLLOWS_ALL;
- scroll_params.is_opaque = false;
- scroll_params.mouse_opaque = false;
- scroll_params.min_auto_scroll_rate = 200;
- scroll_params.max_auto_scroll_rate = 800;
- scroll_params.border_visible = p.border_visible;
- mScroller = LLUICtrlFactory::create<LLScrollContainer>(scroll_params);
- addChild(mScroller);
- }
-
- LLView::Params view_params;
- view_params.name = "text_contents";
- view_params.rect = LLRect(0, 500, 500, 0);
- view_params.mouse_opaque = false;
-
- mDocumentView = LLUICtrlFactory::create<LLView>(view_params);
- if (mScroller)
- {
- mScroller->addChild(mDocumentView);
- }
- else
- {
- addChild(mDocumentView);
- }
-
- createDefaultSegment();
-
- updateRects();
-}
-
-LLTextBase::~LLTextBase()
-{
- // Menu, like any other LLUICtrl, is deleted by its parent - gMenuHolder
-
- mSegments.clear();
-}
-
-void LLTextBase::initFromParams(const LLTextBase::Params& p)
-{
- LLUICtrl::initFromParams(p);
- resetDirty(); // Update saved text state
- updateSegments();
-
- // HACK: work around enabled == readonly design bug -- RN
- // setEnabled will modify our read only status, so do this after
- // LLTextBase::initFromParams
- if (p.read_only.isProvided())
- {
- mReadOnly = p.read_only;
- }
-
- // HACK: text editors always need to be enabled so that we can scroll
- LLView::setEnabled(true);
-}
-
-bool LLTextBase::truncate()
-{
- BOOL did_truncate = FALSE;
-
- // First rough check - if we're less than 1/4th the size, we're OK
- if (getLength() >= S32(mMaxTextByteLength / 4))
- {
- // Have to check actual byte size
- LLWString text(getWText());
- S32 utf8_byte_size = wstring_utf8_length(text);
- if ( utf8_byte_size > mMaxTextByteLength )
- {
- // Truncate safely in UTF-8
- std::string temp_utf8_text = wstring_to_utf8str(text);
- temp_utf8_text = utf8str_truncate( temp_utf8_text, mMaxTextByteLength );
- LLWString text = utf8str_to_wstring( temp_utf8_text );
- // remove extra bit of current string, to preserve formatting, etc.
- removeStringNoUndo(text.size(), getWText().size() - text.size());
- did_truncate = TRUE;
- }
- }
-
- return did_truncate;
-}
-
-LLStyle::Params LLTextBase::getDefaultStyleParams()
-{
- return LLStyle::Params()
- .color(LLUIColor(&mFgColor))
- .readonly_color(LLUIColor(&mReadOnlyFgColor))
- .font(mDefaultFont)
- .drop_shadow(mFontShadow);
-}
-
-void LLTextBase::onValueChange(S32 start, S32 end)
-{
-}
-
-
-// Draws the black box behind the selected text
-void LLTextBase::drawSelectionBackground()
-{
- // Draw selection even if we don't have keyboard focus for search/replace
- if( hasSelection() && !mLineInfoList.empty())
- {
- std::vector<LLRect> selection_rects;
-
- S32 selection_left = llmin( mSelectionStart, mSelectionEnd );
- S32 selection_right = llmax( mSelectionStart, mSelectionEnd );
- LLRect selection_rect = mVisibleTextRect;
-
- // Skip through the lines we aren't drawing.
- LLRect content_display_rect = getVisibleDocumentRect();
-
- // binary search for line that starts before top of visible buffer
- line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mTop, compare_bottom());
- line_list_t::const_iterator end_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top());
-
- bool done = false;
-
- // Find the coordinates of the selected area
- for (;line_iter != end_iter && !done; ++line_iter)
- {
- // is selection visible on this line?
- if (line_iter->mDocIndexEnd > selection_left && line_iter->mDocIndexStart < selection_right)
- {
- segment_set_t::iterator segment_iter;
- S32 segment_offset;
- getSegmentAndOffset(line_iter->mDocIndexStart, &segment_iter, &segment_offset);
-
- LLRect selection_rect;
- selection_rect.mLeft = line_iter->mRect.mLeft;
- selection_rect.mRight = line_iter->mRect.mLeft;
- selection_rect.mBottom = line_iter->mRect.mBottom;
- selection_rect.mTop = line_iter->mRect.mTop;
-
- for(;segment_iter != mSegments.end(); ++segment_iter, segment_offset = 0)
- {
- LLTextSegmentPtr segmentp = *segment_iter;
-
- S32 segment_line_start = segmentp->getStart() + segment_offset;
- S32 segment_line_end = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd);
-
- if (segment_line_start > segment_line_end) break;
-
- S32 segment_width = 0;
- S32 segment_height = 0;
-
- // if selection after beginning of segment
- if(selection_left >= segment_line_start)
- {
- S32 num_chars = llmin(selection_left, segment_line_end) - segment_line_start;
- segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height);
- selection_rect.mLeft += segment_width;
- }
-
- // if selection_right == segment_line_end then that means we are the first character of the next segment
- // or first character of the next line, in either case we want to add the length of the current segment
- // to the selection rectangle and continue.
- // if selection right > segment_line_end then selection spans end of current segment...
- if (selection_right >= segment_line_end)
- {
- // extend selection slightly beyond end of line
- // to indicate selection of newline character (use "n" character to determine width)
- S32 num_chars = segment_line_end - segment_line_start;
- segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height);
- selection_rect.mRight += segment_width;
- }
- // else if selection ends on current segment...
- else
- {
- S32 num_chars = selection_right - segment_line_start;
- segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height);
- selection_rect.mRight += segment_width;
-
- break;
- }
- }
- selection_rects.push_back(selection_rect);
- }
- }
-
- // Draw the selection box (we're using a box instead of reversing the colors on the selected text).
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
- const LLColor4& color = mReadOnly ? mReadOnlyFgColor.get() : mFgColor.get();
- F32 alpha = hasFocus() ? 0.7f : 0.3f;
- alpha *= getDrawContext().mAlpha;
- LLColor4 selection_color(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE], alpha);
-
- for (std::vector<LLRect>::iterator rect_it = selection_rects.begin();
- rect_it != selection_rects.end();
- ++rect_it)
- {
- LLRect selection_rect = *rect_it;
- selection_rect.translate(mVisibleTextRect.mLeft - content_display_rect.mLeft, mVisibleTextRect.mBottom - content_display_rect.mBottom);
- gl_rect_2d(selection_rect, selection_color);
- }
- }
-}
-
-void LLTextBase::drawCursor()
-{
- F32 alpha = getDrawContext().mAlpha;
-
- if( hasFocus()
- && gFocusMgr.getAppHasFocus()
- && !mReadOnly)
- {
- const LLWString &wtext = getWText();
- const llwchar* text = wtext.c_str();
-
- LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos);
- cursor_rect.translate(-1, 0);
- segment_set_t::iterator seg_it = getSegIterContaining(mCursorPos);
-
- // take style from last segment
- LLTextSegmentPtr segmentp;
-
- if (seg_it != mSegments.end())
- {
- segmentp = *seg_it;
- }
- else
- {
- //segmentp = mSegments.back();
- return;
- }
-
- // Draw the cursor
- // (Flash the cursor every half second starting a fixed time after the last keystroke)
- F32 elapsed = mCursorBlinkTimer.getElapsedTimeF32();
- if( (elapsed < CURSOR_FLASH_DELAY ) || (S32(elapsed * 2) & 1) )
- {
-
- if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection())
- {
- S32 segment_width = 0;
- S32 segment_height = 0;
- segmentp->getDimensions(mCursorPos - segmentp->getStart(), 1, segment_width, segment_height);
- S32 width = llmax(CURSOR_THICKNESS, segment_width);
- cursor_rect.mRight = cursor_rect.mLeft + width;
- }
- else
- {
- cursor_rect.mRight = cursor_rect.mLeft + CURSOR_THICKNESS;
- }
-
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-
- LLColor4 cursor_color = mCursorColor.get() % alpha;
- gGL.color4fv( cursor_color.mV );
-
- gl_rect_2d(cursor_rect);
-
- if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection() && text[mCursorPos] != '\n')
- {
- LLColor4 text_color;
- const LLFontGL* fontp;
- if (segmentp)
- {
- text_color = segmentp->getColor();
- fontp = segmentp->getStyle()->getFont();
- }
- else if (mReadOnly)
- {
- text_color = mReadOnlyFgColor.get();
- fontp = mDefaultFont;
- }
- else
- {
- text_color = mFgColor.get();
- fontp = mDefaultFont;
- }
- fontp->render(text, mCursorPos, cursor_rect,
- LLColor4(1.f - text_color.mV[VRED], 1.f - text_color.mV[VGREEN], 1.f - text_color.mV[VBLUE], alpha),
- LLFontGL::LEFT, mVAlign,
- LLFontGL::NORMAL,
- LLFontGL::NO_SHADOW,
- 1);
- }
-
- // Make sure the IME is in the right place
- LLRect screen_pos = calcScreenRect();
- LLCoordGL ime_pos( screen_pos.mLeft + llfloor(cursor_rect.mLeft), screen_pos.mBottom + llfloor(cursor_rect.mTop) );
-
- ime_pos.mX = (S32) (ime_pos.mX * LLUI::sGLScaleFactor.mV[VX]);
- ime_pos.mY = (S32) (ime_pos.mY * LLUI::sGLScaleFactor.mV[VY]);
- getWindow()->setLanguageTextInput( ime_pos );
- }
- }
-}
-
-void LLTextBase::drawText()
-{
- const S32 text_len = getLength();
- if( text_len <= 0 )
- {
- return;
- }
- S32 selection_left = -1;
- S32 selection_right = -1;
- // Draw selection even if we don't have keyboard focus for search/replace
- if( hasSelection())
- {
- selection_left = llmin( mSelectionStart, mSelectionEnd );
- selection_right = llmax( mSelectionStart, mSelectionEnd );
- }
-
- LLRect scrolled_view_rect = getVisibleDocumentRect();
- std::pair<S32, S32> line_range = getVisibleLines(mClipPartial);
- S32 first_line = line_range.first;
- S32 last_line = line_range.second;
- if (first_line >= last_line)
- {
- return;
- }
-
- S32 line_start = getLineStart(first_line);
- // find first text segment that spans top of visible portion of text buffer
- segment_set_t::iterator seg_iter = getSegIterContaining(line_start);
- if (seg_iter == mSegments.end())
- {
- return;
- }
-
- LLTextSegmentPtr cur_segment = *seg_iter;
-
- for (S32 cur_line = first_line; cur_line < last_line; cur_line++)
- {
- S32 next_line = cur_line + 1;
- line_info& line = mLineInfoList[cur_line];
-
- S32 next_start = -1;
- S32 line_end = text_len;
-
- if (next_line < getLineCount())
- {
- next_start = getLineStart(next_line);
- line_end = next_start;
- }
-
- LLRect text_rect(line.mRect.mLeft + mVisibleTextRect.mLeft - scrolled_view_rect.mLeft,
- line.mRect.mTop - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom,
- llmin(mDocumentView->getRect().getWidth(), line.mRect.mRight) - scrolled_view_rect.mLeft,
- line.mRect.mBottom - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom);
-
- // draw a single line of text
- S32 seg_start = line_start;
- while( seg_start < line_end )
- {
- while( cur_segment->getEnd() <= seg_start )
- {
- seg_iter++;
- if (seg_iter == mSegments.end())
- {
- llwarns << "Ran off the segmentation end!" << llendl;
-
- return;
- }
- cur_segment = *seg_iter;
- }
-
- S32 clipped_end = llmin( line_end, cur_segment->getEnd() ) - cur_segment->getStart();
-
- if (mUseEllipses // using ellipses
- && clipped_end == line_end // last segment on line
- && next_line == last_line // this is the last visible line
- && last_line < (S32)mLineInfoList.size()) // and there is more text to display
- {
- // more lines of text to go, but we can't fit them
- // so shrink text rect to force ellipses
- text_rect.mRight -= 2;
- }
-
- text_rect.mLeft = (S32)(cur_segment->draw(seg_start - cur_segment->getStart(), clipped_end, selection_left, selection_right, text_rect));
-
- seg_start = clipped_end + cur_segment->getStart();
- }
-
- line_start = next_start;
- }
-}
-
-///////////////////////////////////////////////////////////////////
-// Returns change in number of characters in mWText
-
-S32 LLTextBase::insertStringNoUndo(S32 pos, const LLWString &wstr, LLTextBase::segment_vec_t* segments )
-{
- LLWString text(getWText());
- S32 old_len = text.length(); // length() returns character length
- S32 insert_len = wstr.length();
-
- pos = getEditableIndex(pos, true);
-
- segment_set_t::iterator seg_iter = getSegIterContaining(pos);
-
- LLTextSegmentPtr default_segment;
-
- LLTextSegmentPtr segmentp;
- if (seg_iter != mSegments.end())
- {
- segmentp = *seg_iter;
- }
- else
- {
- //segmentp = mSegments.back();
- return pos;
- }
-
- if (segmentp->canEdit())
- {
- segmentp->setEnd(segmentp->getEnd() + insert_len);
- if (seg_iter != mSegments.end())
- {
- ++seg_iter;
- }
- }
- else
- {
- // create default editable segment to hold new text
- LLStyleConstSP sp(new LLStyle(getDefaultStyleParams()));
- default_segment = new LLNormalTextSegment( sp, pos, pos + insert_len, *this);
- }
-
- // shift remaining segments to right
- for(;seg_iter != mSegments.end(); ++seg_iter)
- {
- LLTextSegmentPtr segmentp = *seg_iter;
- segmentp->setStart(segmentp->getStart() + insert_len);
- segmentp->setEnd(segmentp->getEnd() + insert_len);
- }
-
- // insert new segments
- if (segments)
- {
- if (default_segment.notNull())
- {
- // potentially overwritten by segments passed in
- insertSegment(default_segment);
- }
- for (segment_vec_t::iterator seg_iter = segments->begin();
- seg_iter != segments->end();
- ++seg_iter)
- {
- LLTextSegment* segmentp = *seg_iter;
- insertSegment(segmentp);
- }
- }
-
- text.insert(pos, wstr);
- getViewModel()->setDisplay(text);
-
- if ( truncate() )
- {
- insert_len = getLength() - old_len;
- }
-
- onValueChange(pos, pos + insert_len);
- needsReflow(pos);
-
- return insert_len;
-}
-
-S32 LLTextBase::removeStringNoUndo(S32 pos, S32 length)
-{
- LLWString text(getWText());
- segment_set_t::iterator seg_iter = getSegIterContaining(pos);
- while(seg_iter != mSegments.end())
- {
- LLTextSegmentPtr segmentp = *seg_iter;
- S32 end = pos + length;
- if (segmentp->getStart() < pos)
- {
- // deleting from middle of segment
- if (segmentp->getEnd() > end)
- {
- segmentp->setEnd(segmentp->getEnd() - length);
- }
- // truncating segment
- else
- {
- segmentp->setEnd(pos);
- }
- }
- else if (segmentp->getStart() < end)
- {
- // deleting entire segment
- if (segmentp->getEnd() <= end)
- {
- // remove segment
- segmentp->unlinkFromDocument(this);
- segment_set_t::iterator seg_to_erase(seg_iter++);
- mSegments.erase(seg_to_erase);
- continue;
- }
- // deleting head of segment
- else
- {
- segmentp->setStart(pos);
- segmentp->setEnd(segmentp->getEnd() - length);
- }
- }
- else
- {
- // shifting segments backward to fill deleted portion
- segmentp->setStart(segmentp->getStart() - length);
- segmentp->setEnd(segmentp->getEnd() - length);
- }
- ++seg_iter;
- }
-
- text.erase(pos, length);
- getViewModel()->setDisplay(text);
-
- // recreate default segment in case we erased everything
- createDefaultSegment();
-
- onValueChange(pos, pos);
- needsReflow(pos);
-
- return -length; // This will be wrong if someone calls removeStringNoUndo with an excessive length
-}
-
-S32 LLTextBase::overwriteCharNoUndo(S32 pos, llwchar wc)
-{
- if (pos > (S32)getLength())
- {
- return 0;
- }
- LLWString text(getWText());
- text[pos] = wc;
- getViewModel()->setDisplay(text);
-
- onValueChange(pos, pos + 1);
- needsReflow(pos);
-
- return 1;
-}
-
-
-void LLTextBase::createDefaultSegment()
-{
- // ensures that there is always at least one segment
- if (mSegments.empty())
- {
- LLStyleConstSP sp(new LLStyle(getDefaultStyleParams()));
- LLTextSegmentPtr default_segment = new LLNormalTextSegment( sp, 0, getLength() + 1, *this);
- mSegments.insert(default_segment);
- default_segment->linkToDocument(this);
- }
-}
-
-void LLTextBase::insertSegment(LLTextSegmentPtr segment_to_insert)
-{
- if (segment_to_insert.isNull())
- {
- return;
- }
-
- segment_set_t::iterator cur_seg_iter = getSegIterContaining(segment_to_insert->getStart());
- S32 reflow_start_index = 0;
-
- if (cur_seg_iter == mSegments.end())
- {
- mSegments.insert(segment_to_insert);
- segment_to_insert->linkToDocument(this);
- reflow_start_index = segment_to_insert->getStart();
- }
- else
- {
- LLTextSegmentPtr cur_segmentp = *cur_seg_iter;
- reflow_start_index = cur_segmentp->getStart();
- if (cur_segmentp->getStart() < segment_to_insert->getStart())
- {
- S32 old_segment_end = cur_segmentp->getEnd();
- // split old at start point for new segment
- cur_segmentp->setEnd(segment_to_insert->getStart());
- // advance to next segment
- // insert remainder of old segment
- LLStyleConstSP sp = cur_segmentp->getStyle();
- LLTextSegmentPtr remainder_segment = new LLNormalTextSegment( sp, segment_to_insert->getStart(), old_segment_end, *this);
- mSegments.insert(cur_seg_iter, remainder_segment);
- remainder_segment->linkToDocument(this);
- // insert new segment before remainder of old segment
- mSegments.insert(cur_seg_iter, segment_to_insert);
-
- segment_to_insert->linkToDocument(this);
- // at this point, there will be two overlapping segments owning the text
- // associated with the incoming segment
- }
- else
- {
- mSegments.insert(cur_seg_iter, segment_to_insert);
- segment_to_insert->linkToDocument(this);
- }
-
- // now delete/truncate remaining segments as necessary
- // cur_seg_iter points to segment before incoming segment
- while(cur_seg_iter != mSegments.end())
- {
- cur_segmentp = *cur_seg_iter;
- if (cur_segmentp == segment_to_insert)
- {
- ++cur_seg_iter;
- continue;
- }
-
- if (cur_segmentp->getStart() >= segment_to_insert->getStart())
- {
- if(cur_segmentp->getEnd() <= segment_to_insert->getEnd())
- {
- cur_segmentp->unlinkFromDocument(this);
- // grab copy of iterator to erase, and bump it
- segment_set_t::iterator seg_to_erase(cur_seg_iter++);
- mSegments.erase(seg_to_erase);
- continue;
- }
- else
- {
- // last overlapping segment, clip to end of incoming segment
- // and stop traversal
- cur_segmentp->setStart(segment_to_insert->getEnd());
- break;
- }
- }
- ++cur_seg_iter;
- }
- }
-
- // layout potentially changed
- needsReflow(reflow_start_index);
-}
-
-BOOL LLTextBase::handleMouseDown(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleMouseDown(x, y, mask))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleMouseDown(x, y, mask);
-}
-
-BOOL LLTextBase::handleMouseUp(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleMouseUp(x, y, mask))
- {
- // Did we just click on a link?
- if (cur_segment->getStyle()
- && cur_segment->getStyle()->isLink())
- {
- // *TODO: send URL here?
- mURLClickSignal(this, LLSD() );
- }
- return TRUE;
- }
-
- return LLUICtrl::handleMouseUp(x, y, mask);
-}
-
-BOOL LLTextBase::handleMiddleMouseDown(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleMiddleMouseDown(x, y, mask))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleMiddleMouseDown(x, y, mask);
-}
-
-BOOL LLTextBase::handleMiddleMouseUp(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleMiddleMouseUp(x, y, mask))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleMiddleMouseUp(x, y, mask);
-}
-
-BOOL LLTextBase::handleRightMouseDown(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleRightMouseDown(x, y, mask))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleRightMouseDown(x, y, mask);
-}
-
-BOOL LLTextBase::handleRightMouseUp(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleRightMouseUp(x, y, mask))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleRightMouseUp(x, y, mask);
-}
-
-BOOL LLTextBase::handleDoubleClick(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleDoubleClick(x, y, mask))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleDoubleClick(x, y, mask);
-}
-
-BOOL LLTextBase::handleHover(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleHover(x, y, mask))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleHover(x, y, mask);
-}
-
-BOOL LLTextBase::handleScrollWheel(S32 x, S32 y, S32 clicks)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleScrollWheel(x, y, clicks))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleScrollWheel(x, y, clicks);
-}
-
-BOOL LLTextBase::handleToolTip(S32 x, S32 y, MASK mask)
-{
- LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
- if (cur_segment && cur_segment->handleToolTip(x, y, mask))
- {
- return TRUE;
- }
-
- return LLUICtrl::handleToolTip(x, y, mask);
-}
-
-
-void LLTextBase::reshape(S32 width, S32 height, BOOL called_from_parent)
-{
- if (width != getRect().getWidth() || height != getRect().getHeight())
- {
- bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false;
-
- LLUICtrl::reshape( width, height, called_from_parent );
-
- if (mScroller && scrolled_to_bottom && mTrackEnd)
- {
- // keep bottom of text buffer visible
- // do this here as well as in reflow to handle case
- // where shrinking from top, which causes buffer to temporarily
- // not be scrolled to the bottom, since the scroll index
- // specified the _top_ of the visible document region
- mScroller->goToBottom();
- }
-
- // do this first after reshape, because other things depend on
- // up-to-date mVisibleTextRect
- updateRects();
-
- needsReflow();
- }
-}
-
-void LLTextBase::draw()
-{
- // reflow if needed, on demand
- reflow();
-
- // then update scroll position, as cursor may have moved
- if (!mReadOnly)
- {
- updateScrollFromCursor();
- }
-
- LLRect doc_rect;
- if (mScroller)
- {
- mScroller->localRectToOtherView(mScroller->getContentWindowRect(), &doc_rect, this);
- }
- else
- {
- doc_rect = getLocalRect();
- }
-
- if (mBGVisible)
- {
- // clip background rect against extents, if we support scrolling
- LLLocalClipRect clip(doc_rect, mScroller != NULL);
-
- LLColor4 bg_color = mReadOnly
- ? mReadOnlyBgColor.get()
- : hasFocus()
- ? mFocusBgColor.get()
- : mWriteableBgColor.get();
- gl_rect_2d(mVisibleTextRect, bg_color, TRUE);
- }
-
- // draw document view
- LLUICtrl::draw();
-
- {
- // only clip if we support scrolling (mScroller != NULL)
- LLLocalClipRect clip(doc_rect, mScroller != NULL);
- drawSelectionBackground();
- drawText();
- drawCursor();
- }
-}
-
-
-//virtual
-void LLTextBase::setColor( const LLColor4& c )
-{
- mFgColor = c;
-}
-
-//virtual
-void LLTextBase::setReadOnlyColor(const LLColor4 &c)
-{
- mReadOnlyFgColor = c;
-}
-
-//virtual
-void LLTextBase::handleVisibilityChange( BOOL new_visibility )
-{
- if(!new_visibility && mPopupMenu)
- {
- mPopupMenu->hide();
- }
- LLUICtrl::handleVisibilityChange(new_visibility);
-}
-
-//virtual
-void LLTextBase::setValue(const LLSD& value )
-{
- setText(value.asString());
-}
-
-//virtual
-BOOL LLTextBase::canDeselect() const
-{
- return hasSelection();
-}
-
-
-//virtual
-void LLTextBase::deselect()
-{
- mSelectionStart = 0;
- mSelectionEnd = 0;
- mIsSelecting = FALSE;
-}
-
-
-// Sets the scrollbar from the cursor position
-void LLTextBase::updateScrollFromCursor()
-{
- // Update scroll position even in read-only mode (when there's no cursor displayed)
- // because startOfDoc()/endOfDoc() modify cursor position. See EXT-736.
-
- if (!mScrollNeeded || !mScroller)
- {
- return;
- }
- mScrollNeeded = FALSE;
-
- // scroll so that the cursor is at the top of the page
- LLRect scroller_doc_window = getVisibleDocumentRect();
- LLRect cursor_rect_doc = getLocalRectFromDocIndex(mCursorPos);
- cursor_rect_doc.translate(scroller_doc_window.mLeft, scroller_doc_window.mBottom);
- mScroller->scrollToShowRect(cursor_rect_doc, LLRect(0, scroller_doc_window.getHeight() - 5, scroller_doc_window.getWidth(), 5));
-}
-
-S32 LLTextBase::getLeftOffset(S32 width)
-{
- switch (mHAlign)
- {
- case LLFontGL::LEFT:
- return mHPad;
- case LLFontGL::HCENTER:
- return mHPad + llmax(0, (mVisibleTextRect.getWidth() - width - mHPad) / 2);
- case LLFontGL::RIGHT:
- return mVisibleTextRect.getWidth() - width;
- default:
- return mHPad;
- }
-}
-
-
-static LLFastTimer::DeclareTimer FTM_TEXT_REFLOW ("Text Reflow");
-void LLTextBase::reflow()
-{
- LLFastTimer ft(FTM_TEXT_REFLOW);
-
- updateSegments();
-
- if (mReflowIndex == S32_MAX)
- {
- return;
- }
-
- bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false;
-
- LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos);
- bool follow_selection = getLocalRect().overlaps(cursor_rect); // cursor is (potentially) visible
-
- // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing
- cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop;
- cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom;
-
- S32 first_line = getFirstVisibleLine();
-
- // if scroll anchor not on first line, update it to first character of first line
- if (!mLineInfoList.empty()
- && (mScrollIndex < mLineInfoList[first_line].mDocIndexStart
- || mScrollIndex >= mLineInfoList[first_line].mDocIndexEnd))
- {
- mScrollIndex = mLineInfoList[first_line].mDocIndexStart;
- }
- LLRect first_char_rect = getLocalRectFromDocIndex(mScrollIndex);
- // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing
- first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop;
- first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom;
-
- S32 reflow_count = 0;
- while(mReflowIndex < S32_MAX)
- {
- // we can get into an infinite loop if the document height does not monotonically increase
- // with decreasing width (embedded ui elements with alternate layouts). In that case,
- // we want to stop reflowing after 2 iterations. We use 2, since we need to handle the case
- // of introducing a vertical scrollbar causing a reflow with less width. We should also always
- // use an even number of iterations to avoid user visible oscillation of the layout
- if(++reflow_count > 2)
- {
- lldebugs << "Breaking out of reflow due to possible infinite loop in " << getName() << llendl;
- break;
- }
-
- S32 start_index = mReflowIndex;
- mReflowIndex = S32_MAX;
-
- // shrink document to minimum size (visible portion of text widget)
- // to force inlined widgets with follows set to shrink
- mDocumentView->reshape(mVisibleTextRect.getWidth(), mDocumentView->getRect().getHeight());
-
- S32 cur_top = 0;
-
- segment_set_t::iterator seg_iter = mSegments.begin();
- S32 seg_offset = 0;
- S32 line_start_index = 0;
- const S32 text_available_width = mVisibleTextRect.getWidth() - mHPad; // reserve room for margin
- S32 remaining_pixels = text_available_width;
- S32 line_count = 0;
-
- // find and erase line info structs starting at start_index and going to end of document
- if (!mLineInfoList.empty())
- {
- // find first element whose end comes after start_index
- line_list_t::iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), start_index, line_end_compare());
- line_start_index = iter->mDocIndexStart;
- line_count = iter->mLineNum;
- cur_top = iter->mRect.mTop;
- getSegmentAndOffset(iter->mDocIndexStart, &seg_iter, &seg_offset);
- mLineInfoList.erase(iter, mLineInfoList.end());
- }
-
- S32 line_height = 0;
-
- while(seg_iter != mSegments.end())
- {
- LLTextSegmentPtr segment = *seg_iter;
-
- // track maximum height of any segment on this line
- S32 cur_index = segment->getStart() + seg_offset;
-
- // ask segment how many character fit in remaining space
- S32 character_count = segment->getNumChars(getWordWrap() ? llmax(0, remaining_pixels) : S32_MAX,
- seg_offset,
- cur_index - line_start_index,
- S32_MAX);
-
- S32 segment_width, segment_height;
- bool force_newline = segment->getDimensions(seg_offset, character_count, segment_width, segment_height);
- // grow line height as necessary based on reported height of this segment
- line_height = llmax(line_height, segment_height);
- remaining_pixels -= segment_width;
-
- seg_offset += character_count;
-
- S32 last_segment_char_on_line = segment->getStart() + seg_offset;
-
- S32 text_actual_width = text_available_width - remaining_pixels;
- S32 text_left = getLeftOffset(text_actual_width);
- LLRect line_rect(text_left,
- cur_top,
- text_left + text_actual_width,
- cur_top - line_height);
-
- // if we didn't finish the current segment...
- if (last_segment_char_on_line < segment->getEnd())
- {
- // add line info and keep going
- mLineInfoList.push_back(line_info(
- line_start_index,
- last_segment_char_on_line,
- line_rect,
- line_count));
-
- line_start_index = segment->getStart() + seg_offset;
- cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels;
- remaining_pixels = text_available_width;
- line_height = 0;
- }
- // ...just consumed last segment..
- else if (++segment_set_t::iterator(seg_iter) == mSegments.end())
- {
- mLineInfoList.push_back(line_info(
- line_start_index,
- last_segment_char_on_line,
- line_rect,
- line_count));
- cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels;
- break;
- }
- // ...or finished a segment and there are segments remaining on this line
- else
- {
- // subtract pixels used and increment segment
- if (force_newline)
- {
- mLineInfoList.push_back(line_info(
- line_start_index,
- last_segment_char_on_line,
- line_rect,
- line_count));
- line_start_index = segment->getStart() + seg_offset;
- cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels;
- line_height = 0;
- remaining_pixels = text_available_width;
- }
- ++seg_iter;
- seg_offset = 0;
- }
- if (force_newline)
- {
- line_count++;
- }
- }
-
- // calculate visible region for diplaying text
- updateRects();
-
- for (segment_set_t::iterator segment_it = mSegments.begin();
- segment_it != mSegments.end();
- ++segment_it)
- {
- LLTextSegmentPtr segmentp = *segment_it;
- segmentp->updateLayout(*this);
-
- }
- }
-
- // apply scroll constraints after reflowing text
- if (!hasMouseCapture() && mScroller)
- {
- if (scrolled_to_bottom && mTrackEnd)
- {
- // keep bottom of text buffer visible
- endOfDoc();
- }
- else if (hasSelection() && follow_selection)
- {
- // keep cursor in same vertical position on screen when selecting text
- LLRect new_cursor_rect_doc = getDocRectFromDocIndex(mCursorPos);
- LLRect old_cursor_rect = cursor_rect;
- old_cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop;
- old_cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom;
-
- mScroller->scrollToShowRect(new_cursor_rect_doc, old_cursor_rect);
- }
- else
- {
- // keep first line of text visible
- LLRect new_first_char_rect = getDocRectFromDocIndex(mScrollIndex);
-
- // pass in desired rect in the coordinate frame of the document viewport
- LLRect old_first_char_rect = first_char_rect;
- old_first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop;
- old_first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom;
-
- mScroller->scrollToShowRect(new_first_char_rect, old_first_char_rect);
- }
- }
-
- // reset desired x cursor position
- updateCursorXPos();
- }
-
-LLRect LLTextBase::getTextBoundingRect()
-{
- reflow();
- return mTextBoundingRect;
-}
-
-
-void LLTextBase::clearSegments()
-{
- mSegments.clear();
- createDefaultSegment();
-}
-
-S32 LLTextBase::getLineStart( S32 line ) const
-{
- S32 num_lines = getLineCount();
- if (num_lines == 0)
- {
- return 0;
- }
-
- line = llclamp(line, 0, num_lines-1);
- return mLineInfoList[line].mDocIndexStart;
-}
-
-S32 LLTextBase::getLineEnd( S32 line ) const
-{
- S32 num_lines = getLineCount();
- if (num_lines == 0)
- {
- return 0;
- }
-
- line = llclamp(line, 0, num_lines-1);
- return mLineInfoList[line].mDocIndexEnd;
-}
-
-
-
-S32 LLTextBase::getLineNumFromDocIndex( S32 doc_index, bool include_wordwrap) const
-{
- if (mLineInfoList.empty())
- {
- return 0;
- }
- else
- {
- line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), doc_index, line_end_compare());
- if (include_wordwrap)
- {
- return iter - mLineInfoList.begin();
- }
- else
- {
- if (iter == mLineInfoList.end())
- {
- return mLineInfoList.back().mLineNum;
- }
- else
- {
- return iter->mLineNum;
- }
- }
- }
-}
-
-// Given an offset into text (pos), find the corresponding line (from the start of the doc) and an offset into the line.
-S32 LLTextBase::getLineOffsetFromDocIndex( S32 startpos, bool include_wordwrap) const
-{
- if (mLineInfoList.empty())
- {
- return startpos;
- }
- else
- {
- line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), startpos, line_end_compare());
- return startpos - iter->mDocIndexStart;
- }
-}
-
-S32 LLTextBase::getFirstVisibleLine() const
-{
- LLRect visible_region = getVisibleDocumentRect();
-
- // binary search for line that starts before top of visible buffer
- line_list_t::const_iterator iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom());
-
- return iter - mLineInfoList.begin();
-}
-
-std::pair<S32, S32> LLTextBase::getVisibleLines(bool fully_visible)
-{
- LLRect visible_region = getVisibleDocumentRect();
- line_list_t::const_iterator first_iter;
- line_list_t::const_iterator last_iter;
-
- // make sure we have an up-to-date mLineInfoList
- reflow();
-
- if (fully_visible)
- {
- first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_top());
- last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_bottom());
- }
- else
- {
- first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom());
- last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_top());
- }
- return std::pair<S32, S32>(first_iter - mLineInfoList.begin(), last_iter - mLineInfoList.begin());
-}
-
-
-
-LLTextViewModel* LLTextBase::getViewModel() const
-{
- return (LLTextViewModel*)mViewModel.get();
-}
-
-void LLTextBase::addDocumentChild(LLView* view)
-{
- mDocumentView->addChild(view);
-}
-
-void LLTextBase::removeDocumentChild(LLView* view)
-{
- mDocumentView->removeChild(view);
-}
-
-
-static LLFastTimer::DeclareTimer FTM_UPDATE_TEXT_SEGMENTS("Update Text Segments");
-void LLTextBase::updateSegments()
-{
- LLFastTimer ft(FTM_UPDATE_TEXT_SEGMENTS);
- createDefaultSegment();
-}
-
-void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::const_iterator* seg_iter, S32* offsetp ) const
-{
- *seg_iter = getSegIterContaining(startpos);
- if (*seg_iter == mSegments.end())
- {
- *offsetp = 0;
- }
- else
- {
- *offsetp = startpos - (**seg_iter)->getStart();
- }
-}
-
-void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::iterator* seg_iter, S32* offsetp )
-{
- *seg_iter = getSegIterContaining(startpos);
- if (*seg_iter == mSegments.end())
- {
- *offsetp = 0;
- }
- else
- {
- *offsetp = startpos - (**seg_iter)->getStart();
- }
-}
-
-LLTextBase::segment_set_t::iterator LLTextBase::getSegIterContaining(S32 index)
-{
- segment_set_t::iterator it = mSegments.upper_bound(new LLIndexSegment(index));
- return it;
-}
-
-LLTextBase::segment_set_t::const_iterator LLTextBase::getSegIterContaining(S32 index) const
-{
- LLTextBase::segment_set_t::const_iterator it = mSegments.upper_bound(new LLIndexSegment(index));
- return it;
-}
-
-// Finds the text segment (if any) at the give local screen position
-LLTextSegmentPtr LLTextBase::getSegmentAtLocalPos( S32 x, S32 y, bool hit_past_end_of_line)
-{
- // Find the cursor position at the requested local screen position
- S32 offset = getDocIndexFromLocalCoord( x, y, FALSE, hit_past_end_of_line);
- segment_set_t::iterator seg_iter = getSegIterContaining(offset);
- if (seg_iter != mSegments.end())
- {
- return *seg_iter;
- }
- else
- {
- return LLTextSegmentPtr();
- }
-}
-
-void LLTextBase::createUrlContextMenu(S32 x, S32 y, const std::string &in_url)
-{
- // work out the XUI menu file to use for this url
- LLUrlMatch match;
- std::string url = in_url;
- if (! LLUrlRegistry::instance().findUrl(url, match))
- {
- return;
- }
-
- std::string xui_file = match.getMenuName();
- if (xui_file.empty())
- {
- return;
- }
-
- // set up the callbacks for all of the potential menu items, N.B. we
- // don't use const ref strings in callbacks in case url goes out of scope
- LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar;
- registrar.add("Url.Open", boost::bind(&LLUrlAction::openURL, url));
- registrar.add("Url.OpenInternal", boost::bind(&LLUrlAction::openURLInternal, url));
- registrar.add("Url.OpenExternal", boost::bind(&LLUrlAction::openURLExternal, url));
- registrar.add("Url.Execute", boost::bind(&LLUrlAction::executeSLURL, url));
- registrar.add("Url.Teleport", boost::bind(&LLUrlAction::teleportToLocation, url));
- registrar.add("Url.ShowProfile", boost::bind(&LLUrlAction::showProfile, url));
- registrar.add("Url.ShowOnMap", boost::bind(&LLUrlAction::showLocationOnMap, url));
- registrar.add("Url.CopyLabel", boost::bind(&LLUrlAction::copyLabelToClipboard, url));
- registrar.add("Url.CopyUrl", boost::bind(&LLUrlAction::copyURLToClipboard, url));
-
- // create and return the context menu from the XUI file
- delete mPopupMenu;
- mPopupMenu = LLUICtrlFactory::getInstance()->createFromFile<LLContextMenu>(xui_file, LLMenuGL::sMenuContainer,
- LLMenuHolderGL::child_registry_t::instance());
- if (mPopupMenu)
- {
- mPopupMenu->show(x, y);
- LLMenuGL::showPopup(this, mPopupMenu, x, y);
- }
-}
-
-void LLTextBase::setText(const LLStringExplicit &utf8str, const LLStyle::Params& input_params)
-{
- // clear out the existing text and segments
- getViewModel()->setDisplay(LLWStringUtil::null);
-
- clearSegments();
-// createDefaultSegment();
-
- deselect();
-
- // append the new text (supports Url linking)
- std::string text(utf8str);
- LLStringUtil::removeCRLF(text);
-
- // appendText modifies mCursorPos...
- appendText(text, false, input_params);
- // ...so move cursor to top after appending text
- startOfDoc();
-
- onValueChange(0, getLength());
-}
-
-//virtual
-std::string LLTextBase::getText() const
-{
- return getViewModel()->getValue().asString();
-}
-
-// IDEVO - icons can be UI image names or UUID sent from
-// server with avatar display name
-static LLUIImagePtr image_from_icon_name(const std::string& icon_name)
-{
- if (LLUUID::validate(icon_name))
- {
- return LLUI::getUIImageByID( LLUUID(icon_name) );
- }
- else
- {
- return LLUI::getUIImage(icon_name);
- }
-}
-
-void LLTextBase::appendTextImpl(const std::string &new_text, const LLStyle::Params& input_params)
-{
- LLStyle::Params style_params(input_params);
- style_params.fillFrom(getDefaultStyleParams());
-
- S32 part = (S32)LLTextParser::WHOLE;
- if(mParseHTML)
- {
- S32 start=0,end=0;
- LLUrlMatch match;
- std::string text = new_text;
- while ( LLUrlRegistry::instance().findUrl(text, match,
- boost::bind(&LLTextBase::replaceUrl, this, _1, _2, _3)) )
- {
-
- LLTextUtil::processUrlMatch(&match,this);
-
- start = match.getStart();
- end = match.getEnd()+1;
-
- LLStyle::Params link_params(style_params);
- link_params.overwriteFrom(match.getStyle());
-
- // output the text before the Url
- if (start > 0)
- {
- if (part == (S32)LLTextParser::WHOLE ||
- part == (S32)LLTextParser::START)
- {
- part = (S32)LLTextParser::START;
- }
- else
- {
- part = (S32)LLTextParser::MIDDLE;
- }
- std::string subtext=text.substr(0,start);
- appendAndHighlightText(subtext, part, style_params);
- }
-
- // output the styled Url
- appendAndHighlightTextImpl(match.getLabel(), part, link_params);
-
- // set the tooltip for the Url label
- if (! match.getTooltip().empty())
- {
- segment_set_t::iterator it = getSegIterContaining(getLength()-1);
- if (it != mSegments.end())
- {
- LLTextSegmentPtr segment = *it;
- segment->setToolTip(match.getTooltip());
- }
- }
-
- // move on to the rest of the text after the Url
- if (end < (S32)text.length())
- {
- text = text.substr(end,text.length() - end);
- end=0;
- part=(S32)LLTextParser::END;
- }
- else
- {
- break;
- }
- }
- if (part != (S32)LLTextParser::WHOLE)
- part=(S32)LLTextParser::END;
- if (end < (S32)text.length())
- appendAndHighlightText(text, part, style_params);
- }
- else
- {
- appendAndHighlightText(new_text, part, style_params);
- }
-}
-
-void LLTextBase::appendText(const std::string &new_text, bool prepend_newline, const LLStyle::Params& input_params)
-{
- if (new_text.empty())
- return;
-
- if(prepend_newline)
- appendLineBreakSegment(input_params);
- appendTextImpl(new_text,input_params);
-}
-
-void LLTextBase::needsReflow(S32 index)
-{
- lldebugs << "reflow on object " << (void*)this << " index = " << mReflowIndex << ", new index = " << index << llendl;
- mReflowIndex = llmin(mReflowIndex, index);
-}
-
-void LLTextBase::appendLineBreakSegment(const LLStyle::Params& style_params)
-{
- segment_vec_t segments;
- LLStyleConstSP sp(new LLStyle(style_params));
- segments.push_back(new LLLineBreakTextSegment(sp, getLength()));
-
- insertStringNoUndo(getLength(), utf8str_to_wstring("\n"), &segments);
-}
-
-void LLTextBase::appendImageSegment(const LLStyle::Params& style_params)
-{
- if(getPlainText())
- {
- return;
- }
- segment_vec_t segments;
- LLStyleConstSP sp(new LLStyle(style_params));
- segments.push_back(new LLImageTextSegment(sp, getLength(),*this));
-
- insertStringNoUndo(getLength(), utf8str_to_wstring(" "), &segments);
-}
-
-void LLTextBase::appendWidget(const LLInlineViewSegment::Params& params, const std::string& text, bool allow_undo)
-{
- segment_vec_t segments;
- LLWString widget_wide_text = utf8str_to_wstring(text);
- segments.push_back(new LLInlineViewSegment(params, getLength(), getLength() + widget_wide_text.size()));
-
- insertStringNoUndo(getLength(), widget_wide_text, &segments);
-}
-
-void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params)
-{
- // Save old state
- S32 selection_start = mSelectionStart;
- S32 selection_end = mSelectionEnd;
- BOOL was_selecting = mIsSelecting;
- S32 cursor_pos = mCursorPos;
- S32 old_length = getLength();
- BOOL cursor_was_at_end = (mCursorPos == old_length);
-
- deselect();
-
- setCursorPos(old_length);
-
- if (mParseHighlights)
- {
- LLStyle::Params highlight_params(style_params);
-
- LLSD pieces = LLTextParser::instance().parsePartialLineHighlights(new_text, highlight_params.color(), (LLTextParser::EHighlightPosition)highlight_part);
- for (S32 i = 0; i < pieces.size(); i++)
- {
- LLSD color_llsd = pieces[i]["color"];
- LLColor4 lcolor;
- lcolor.setValue(color_llsd);
- highlight_params.color = lcolor;
-
- LLWString wide_text;
- wide_text = utf8str_to_wstring(pieces[i]["text"].asString());
-
- S32 cur_length = getLength();
- LLStyleConstSP sp(new LLStyle(highlight_params));
- LLTextSegmentPtr segmentp = new LLNormalTextSegment(sp, cur_length, cur_length + wide_text.size(), *this);
- segment_vec_t segments;
- segments.push_back(segmentp);
- insertStringNoUndo(cur_length, wide_text, &segments);
- }
- }
- else
- {
- LLWString wide_text;
- wide_text = utf8str_to_wstring(new_text);
-
- segment_vec_t segments;
- S32 segment_start = old_length;
- S32 segment_end = old_length + wide_text.size();
- LLStyleConstSP sp(new LLStyle(style_params));
- segments.push_back(new LLNormalTextSegment(sp, segment_start, segment_end, *this ));
-
- insertStringNoUndo(getLength(), wide_text, &segments);
- }
-
- // Set the cursor and scroll position
- if( selection_start != selection_end )
- {
- mSelectionStart = selection_start;
- mSelectionEnd = selection_end;
-
- mIsSelecting = was_selecting;
- setCursorPos(cursor_pos);
- }
- else if( cursor_was_at_end )
- {
- setCursorPos(getLength());
- }
- else
- {
- setCursorPos(cursor_pos);
- }
-}
-
-void LLTextBase::appendAndHighlightText(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params)
-{
- if (new_text.empty()) return;
-
- std::string::size_type start = 0;
- std::string::size_type pos = new_text.find("\n",start);
-
- while(pos!=-1)
- {
- if(pos!=start)
- {
- std::string str = std::string(new_text,start,pos-start);
- appendAndHighlightTextImpl(str,highlight_part, style_params);
- }
- appendLineBreakSegment(style_params);
- start = pos+1;
- pos = new_text.find("\n",start);
- }
-
- std::string str = std::string(new_text,start,new_text.length()-start);
- appendAndHighlightTextImpl(str,highlight_part, style_params);
-}
-
-
-void LLTextBase::replaceUrl(const std::string &url,
- const std::string &label,
- const std::string &icon)
-{
- // get the full (wide) text for the editor so we can change it
- LLWString text = getWText();
- LLWString wlabel = utf8str_to_wstring(label);
- bool modified = false;
- S32 seg_start = 0;
-
- // iterate through each segment looking for ones styled as links
- segment_set_t::iterator it;
- for (it = mSegments.begin(); it != mSegments.end(); ++it)
- {
- LLTextSegment *seg = *it;
- LLStyleConstSP style = seg->getStyle();
-
- // update segment start/end length in case we replaced text earlier
- S32 seg_length = seg->getEnd() - seg->getStart();
- seg->setStart(seg_start);
- seg->setEnd(seg_start + seg_length);
-
- // if we find a link with our Url, then replace the label
- if (style->getLinkHREF() == url)
- {
- S32 start = seg->getStart();
- S32 end = seg->getEnd();
- text = text.substr(0, start) + wlabel + text.substr(end, text.size() - end + 1);
- seg->setEnd(start + wlabel.size());
- modified = true;
- }
-
- // Icon might be updated when more avatar or group info
- // becomes available
- if (style->isImage() && style->getLinkHREF() == url)
- {
- LLUIImagePtr image = image_from_icon_name( icon );
- if (image)
- {
- LLStyle::Params icon_params;
- icon_params.image = image;
- LLStyleConstSP new_style(new LLStyle(icon_params));
- seg->setStyle(new_style);
- modified = true;
- }
- }
-
- // work out the character offset for the next segment
- seg_start = seg->getEnd();
- }
-
- // update the editor with the new (wide) text string
- if (modified)
- {
- getViewModel()->setDisplay(text);
- deselect();
- setCursorPos(mCursorPos);
- needsReflow();
- }
-}
-
-
-void LLTextBase::setWText(const LLWString& text)
-{
- setText(wstring_to_utf8str(text));
-}
-
-const LLWString& LLTextBase::getWText() const
-{
- return getViewModel()->getDisplay();
-}
-
-// If round is true, if the position is on the right half of a character, the cursor
-// will be put to its right. If round is false, the cursor will always be put to the
-// character's left.
-
-S32 LLTextBase::getDocIndexFromLocalCoord( S32 local_x, S32 local_y, BOOL round, bool hit_past_end_of_line) const
-{
- // Figure out which line we're nearest to.
- LLRect visible_region = getVisibleDocumentRect();
-
- // binary search for line that starts before local_y
- line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), local_y - mVisibleTextRect.mBottom + visible_region.mBottom, compare_bottom());
-
- if (line_iter == mLineInfoList.end())
- {
- return getLength(); // past the end
- }
-
- S32 pos = getLength();
- S32 start_x = mVisibleTextRect.mLeft + line_iter->mRect.mLeft - visible_region.mLeft;
-
- segment_set_t::iterator line_seg_iter;
- S32 line_seg_offset;
- for(getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset);
- line_seg_iter != mSegments.end();
- ++line_seg_iter, line_seg_offset = 0)
- {
- const LLTextSegmentPtr segmentp = *line_seg_iter;
-
- S32 segment_line_start = segmentp->getStart() + line_seg_offset;
- S32 segment_line_length = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd) - segment_line_start;
- S32 text_width, text_height;
- bool newline = segmentp->getDimensions(line_seg_offset, segment_line_length, text_width, text_height);
-
- if(newline)
- {
- pos = segment_line_start + segmentp->getOffset(local_x - start_x, line_seg_offset, segment_line_length, round);
- break;
- }
-
- // if we've reached a line of text *below* the mouse cursor, doc index is first character on that line
- if (hit_past_end_of_line && local_y - mVisibleTextRect.mBottom + visible_region.mBottom > line_iter->mRect.mTop)
- {
- pos = segment_line_start;
- break;
- }
- if (local_x < start_x + text_width) // cursor to left of right edge of text
- {
- // Figure out which character we're nearest to.
- S32 offset;
- if (!segmentp->canEdit())
- {
- S32 segment_width, segment_height;
- segmentp->getDimensions(0, segmentp->getEnd() - segmentp->getStart(), segment_width, segment_height);
- if (round && local_x - start_x > segment_width / 2)
- {
- offset = segment_line_length;
- }
- else
- {
- offset = 0;
- }
- }
- else
- {
- offset = segmentp->getOffset(local_x - start_x, line_seg_offset, segment_line_length, round);
- }
- pos = segment_line_start + offset;
- break;
- }
- else if (hit_past_end_of_line && segmentp->getEnd() > line_iter->mDocIndexEnd - 1)
- {
- // segment wraps to next line, so just set doc pos to the end of the line
- // segment wraps to next line, so just set doc pos to start of next line (represented by mDocIndexEnd)
- pos = llmin(getLength(), line_iter->mDocIndexEnd);
- break;
- }
- start_x += text_width;
- }
-
- return pos;
-}
-
-// returns rectangle of insertion caret
-// in document coordinate frame from given index into text
-LLRect LLTextBase::getDocRectFromDocIndex(S32 pos) const
-{
- if (mLineInfoList.empty())
- {
- return LLRect();
- }
-
- LLRect doc_rect;
-
- // clamp pos to valid values
- pos = llclamp(pos, 0, mLineInfoList.back().mDocIndexEnd - 1);
-
- // find line that contains cursor
- line_list_t::const_iterator line_iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), pos, line_end_compare());
-
- doc_rect.mLeft = line_iter->mRect.mLeft;
- doc_rect.mBottom = line_iter->mRect.mBottom;
- doc_rect.mTop = line_iter->mRect.mTop;
-
- segment_set_t::iterator line_seg_iter;
- S32 line_seg_offset;
- segment_set_t::iterator cursor_seg_iter;
- S32 cursor_seg_offset;
- getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset);
- getSegmentAndOffset(pos, &cursor_seg_iter, &cursor_seg_offset);
-
- while(line_seg_iter != mSegments.end())
- {
- const LLTextSegmentPtr segmentp = *line_seg_iter;
-
- if (line_seg_iter == cursor_seg_iter)
- {
- // cursor advanced to right based on difference in offset of cursor to start of line
- S32 segment_width, segment_height;
- segmentp->getDimensions(line_seg_offset, cursor_seg_offset - line_seg_offset, segment_width, segment_height);
- doc_rect.mLeft += segment_width;
-
- break;
- }
- else
- {
- // add remainder of current text segment to cursor position
- S32 segment_width, segment_height;
- segmentp->getDimensions(line_seg_offset, (segmentp->getEnd() - segmentp->getStart()) - line_seg_offset, segment_width, segment_height);
- doc_rect.mLeft += segment_width;
- // offset will be 0 for all segments after the first
- line_seg_offset = 0;
- // go to next text segment on this line
- ++line_seg_iter;
- }
- }
-
- // set rect to 0 width
- doc_rect.mRight = doc_rect.mLeft;
-
- return doc_rect;
-}
-
-LLRect LLTextBase::getLocalRectFromDocIndex(S32 pos) const
-{
- LLRect content_window_rect = mScroller ? mScroller->getContentWindowRect() : getLocalRect();
- if (mBorderVisible)
- {
- content_window_rect.stretch(-1);
- }
-
- LLRect local_rect;
-
- if (mLineInfoList.empty())
- {
- // return default height rect in upper left
- local_rect = content_window_rect;
- local_rect.mBottom = local_rect.mTop - (S32)(mDefaultFont->getLineHeight());
- return local_rect;
- }
-
- // get the rect in document coordinates
- LLRect doc_rect = getDocRectFromDocIndex(pos);
-
- // compensate for scrolled, inset view of doc
- LLRect scrolled_view_rect = getVisibleDocumentRect();
- local_rect = doc_rect;
- local_rect.translate(content_window_rect.mLeft - scrolled_view_rect.mLeft,
- content_window_rect.mBottom - scrolled_view_rect.mBottom);
-
- return local_rect;
-}
-
-void LLTextBase::updateCursorXPos()
-{
- // reset desired x cursor position
- mDesiredXPixel = getLocalRectFromDocIndex(mCursorPos).mLeft;
-}
-
-
-void LLTextBase::startOfLine()
-{
- S32 offset = getLineOffsetFromDocIndex(mCursorPos);
- setCursorPos(mCursorPos - offset);
-}
-
-void LLTextBase::endOfLine()
-{
- S32 line = getLineNumFromDocIndex(mCursorPos);
- S32 num_lines = getLineCount();
- if (line + 1 >= num_lines)
- {
- setCursorPos(getLength());
- }
- else
- {
- setCursorPos( getLineStart(line + 1) - 1 );
- }
-}
-
-void LLTextBase::startOfDoc()
-{
- setCursorPos(0);
- if (mScroller)
- {
- mScroller->goToTop();
- }
-}
-
-void LLTextBase::endOfDoc()
-{
- setCursorPos(getLength());
- if (mScroller)
- {
- mScroller->goToBottom();
- }
-}
-
-void LLTextBase::changePage( S32 delta )
-{
- const S32 PIXEL_OVERLAP_ON_PAGE_CHANGE = 10;
- if (delta == 0 || !mScroller) return;
-
- LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos);
-
- if( delta == -1 )
- {
- mScroller->pageUp(PIXEL_OVERLAP_ON_PAGE_CHANGE);
- }
- else
- if( delta == 1 )
- {
- mScroller->pageDown(PIXEL_OVERLAP_ON_PAGE_CHANGE);
- }
-
- if (getLocalRectFromDocIndex(mCursorPos) == cursor_rect)
- {
- // cursor didn't change apparent position, so move to top or bottom of document, respectively
- if (delta < 0)
- {
- startOfDoc();
- }
- else
- {
- endOfDoc();
- }
- }
- else
- {
- setCursorAtLocalPos(cursor_rect.getCenterX(), cursor_rect.getCenterY(), true, false);
- }
-}
-
-// Picks a new cursor position based on the screen size of text being drawn.
-void LLTextBase::setCursorAtLocalPos( S32 local_x, S32 local_y, bool round, bool keep_cursor_offset )
-{
- setCursorPos(getDocIndexFromLocalCoord(local_x, local_y, round), keep_cursor_offset);
-}
-
-
-void LLTextBase::changeLine( S32 delta )
-{
- S32 line = getLineNumFromDocIndex(mCursorPos);
-
- S32 new_line = line;
- if( (delta < 0) && (line > 0 ) )
- {
- new_line = line - 1;
- }
- else if( (delta > 0) && (line < (getLineCount() - 1)) )
- {
- new_line = line + 1;
- }
-
- LLRect visible_region = getVisibleDocumentRect();
-
- S32 new_cursor_pos = getDocIndexFromLocalCoord(mDesiredXPixel, mLineInfoList[new_line].mRect.mBottom + mVisibleTextRect.mBottom - visible_region.mBottom, TRUE);
- setCursorPos(new_cursor_pos, true);
-}
-
-bool LLTextBase::scrolledToStart()
-{
- return mScroller->isAtTop();
-}
-
-bool LLTextBase::scrolledToEnd()
-{
- return mScroller->isAtBottom();
-}
-
-
-bool LLTextBase::setCursor(S32 row, S32 column)
-{
- if (0 <= row && row < (S32)mLineInfoList.size())
- {
- S32 doc_pos = mLineInfoList[row].mDocIndexStart;
- column = llclamp(column, 0, mLineInfoList[row].mDocIndexEnd - mLineInfoList[row].mDocIndexStart - 1);
- doc_pos += column;
- updateCursorXPos();
-
- return setCursorPos(doc_pos);
- }
- return false;
-}
-
-
-bool LLTextBase::setCursorPos(S32 cursor_pos, bool keep_cursor_offset)
-{
- S32 new_cursor_pos = cursor_pos;
- if (new_cursor_pos != mCursorPos)
- {
- new_cursor_pos = getEditableIndex(new_cursor_pos, new_cursor_pos >= mCursorPos);
- }
-
- mCursorPos = llclamp(new_cursor_pos, 0, (S32)getLength());
- needsScroll();
- if (!keep_cursor_offset)
- updateCursorXPos();
- // did we get requested position?
- return new_cursor_pos == cursor_pos;
-}
-
-// constraint cursor to editable segments of document
-S32 LLTextBase::getEditableIndex(S32 index, bool increasing_direction)
-{
- segment_set_t::iterator segment_iter;
- S32 offset;
- getSegmentAndOffset(index, &segment_iter, &offset);
- if (segment_iter == mSegments.end())
- {
- return 0;
- }
-
- LLTextSegmentPtr segmentp = *segment_iter;
-
- if (segmentp->canEdit())
- {
- return segmentp->getStart() + offset;
- }
- else if (segmentp->getStart() < index && index < segmentp->getEnd())
- {
- // bias towards document end
- if (increasing_direction)
- {
- return segmentp->getEnd();
- }
- // bias towards document start
- else
- {
- return segmentp->getStart();
- }
- }
- else
- {
- return index;
- }
-}
-
-void LLTextBase::updateRects()
-{
- if (mLineInfoList.empty())
- {
- mTextBoundingRect = LLRect(0, mVPad, mHPad, 0);
- }
- else
- {
- mTextBoundingRect = mLineInfoList.begin()->mRect;
- for (line_list_t::const_iterator line_iter = ++mLineInfoList.begin();
- line_iter != mLineInfoList.end();
- ++line_iter)
- {
- mTextBoundingRect.unionWith(line_iter->mRect);
- }
-
- mTextBoundingRect.mTop += mVPad;
- // subtract a pixel off the bottom to deal with rounding errors in measuring font height
- mTextBoundingRect.mBottom -= 1;
-
- S32 delta_pos = -mTextBoundingRect.mBottom;
- // move line segments to fit new document rect
- for (line_list_t::iterator it = mLineInfoList.begin(); it != mLineInfoList.end(); ++it)
- {
- it->mRect.translate(0, delta_pos);
- }
- mTextBoundingRect.translate(0, delta_pos);
- }
-
- // update document container dimensions according to text contents
- LLRect doc_rect = mTextBoundingRect;
- // use old mVisibleTextRect constraint document to width of viewable region
- doc_rect.mLeft = 0;
-
- // allow horizontal scrolling?
- // if so, use entire width of text contents
- // otherwise, stop at width of mVisibleTextRect
- doc_rect.mRight = mScroller
- ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight)
- : mVisibleTextRect.getWidth();
-
- mDocumentView->setShape(doc_rect);
-
- //update mVisibleTextRect *after* mDocumentView has been resized
- // so that scrollbars are added if document needs to scroll
- // since mVisibleTextRect does not include scrollbars
- LLRect old_text_rect = mVisibleTextRect;
- mVisibleTextRect = mScroller ? mScroller->getContentWindowRect() : getLocalRect();
- //FIXME: replace border with image?
- if (mBorderVisible)
- {
- mVisibleTextRect.stretch(-1);
- }
- if (mVisibleTextRect != old_text_rect)
- {
- needsReflow();
- }
-
- // update document container again, using new mVisibleTextRect (that has scrollbars enabled as needed)
- doc_rect.mRight = mScroller
- ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight)
- : mVisibleTextRect.getWidth();
- mDocumentView->setShape(doc_rect);
-}
-
-
-void LLTextBase::startSelection()
-{
- if( !mIsSelecting )
- {
- mIsSelecting = TRUE;
- mSelectionStart = mCursorPos;
- mSelectionEnd = mCursorPos;
- }
-}
-
-void LLTextBase::endSelection()
-{
- if( mIsSelecting )
- {
- mIsSelecting = FALSE;
- mSelectionEnd = mCursorPos;
- }
-}
-
-// get portion of document that is visible in text editor
-LLRect LLTextBase::getVisibleDocumentRect() const
-{
- if (mScroller)
- {
- return mScroller->getVisibleContentRect();
- }
- else
- {
- // entire document rect is visible when not scrolling
- // but offset according to height of widget
- LLRect doc_rect = mDocumentView->getLocalRect();
- doc_rect.mLeft -= mDocumentView->getRect().mLeft;
- // adjust for height of text above widget baseline
- doc_rect.mBottom = doc_rect.getHeight() - mVisibleTextRect.getHeight();
- return doc_rect;
- }
-}
-
-//
-// LLTextSegment
-//
-
-LLTextSegment::~LLTextSegment()
-{}
-
-bool LLTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const { width = 0; height = 0; return false;}
-S32 LLTextSegment::getOffset(S32 segment_local_x_coord, S32 start_offset, S32 num_chars, bool round) const { return 0; }
-S32 LLTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const { return 0; }
-void LLTextSegment::updateLayout(const LLTextBase& editor) {}
-F32 LLTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) { return draw_rect.mLeft; }
-bool LLTextSegment::canEdit() const { return false; }
-void LLTextSegment::unlinkFromDocument(LLTextBase*) {}
-void LLTextSegment::linkToDocument(LLTextBase*) {}
-const LLColor4& LLTextSegment::getColor() const { return LLColor4::white; }
-//void LLTextSegment::setColor(const LLColor4 &color) {}
-LLStyleConstSP LLTextSegment::getStyle() const {static LLStyleConstSP sp(new LLStyle()); return sp; }
-void LLTextSegment::setStyle(LLStyleConstSP style) {}
-void LLTextSegment::setToken( LLKeywordToken* token ) {}
-LLKeywordToken* LLTextSegment::getToken() const { return NULL; }
-void LLTextSegment::setToolTip( const std::string &msg ) {}
-void LLTextSegment::dump() const {}
-BOOL LLTextSegment::handleMouseDown(S32 x, S32 y, MASK mask) { return FALSE; }
-BOOL LLTextSegment::handleMouseUp(S32 x, S32 y, MASK mask) { return FALSE; }
-BOOL LLTextSegment::handleMiddleMouseDown(S32 x, S32 y, MASK mask) { return FALSE; }
-BOOL LLTextSegment::handleMiddleMouseUp(S32 x, S32 y, MASK mask) { return FALSE; }
-BOOL LLTextSegment::handleRightMouseDown(S32 x, S32 y, MASK mask) { return FALSE; }
-BOOL LLTextSegment::handleRightMouseUp(S32 x, S32 y, MASK mask) { return FALSE; }
-BOOL LLTextSegment::handleDoubleClick(S32 x, S32 y, MASK mask) { return FALSE; }
-BOOL LLTextSegment::handleHover(S32 x, S32 y, MASK mask) { return FALSE; }
-BOOL LLTextSegment::handleScrollWheel(S32 x, S32 y, S32 clicks) { return FALSE; }
-BOOL LLTextSegment::handleToolTip(S32 x, S32 y, MASK mask) { return FALSE; }
-std::string LLTextSegment::getName() const { return ""; }
-void LLTextSegment::onMouseCaptureLost() {}
-void LLTextSegment::screenPointToLocal(S32 screen_x, S32 screen_y, S32* local_x, S32* local_y) const {}
-void LLTextSegment::localPointToScreen(S32 local_x, S32 local_y, S32* screen_x, S32* screen_y) const {}
-BOOL LLTextSegment::hasMouseCapture() { return FALSE; }
-
-//
-// LLNormalTextSegment
-//
-
-LLNormalTextSegment::LLNormalTextSegment( LLStyleConstSP style, S32 start, S32 end, LLTextBase& editor )
-: LLTextSegment(start, end),
- mStyle( style ),
- mToken(NULL),
- mEditor(editor)
-{
- mFontHeight = llceil(mStyle->getFont()->getLineHeight());
-
- LLUIImagePtr image = mStyle->getImage();
- if (image.notNull())
- {
- mImageLoadedConnection = image->addLoadedCallback(boost::bind(&LLTextBase::needsReflow, &mEditor, start));
- }
-}
-
-LLNormalTextSegment::LLNormalTextSegment( const LLColor4& color, S32 start, S32 end, LLTextBase& editor, BOOL is_visible)
-: LLTextSegment(start, end),
- mToken(NULL),
- mEditor(editor)
-{
- mStyle = new LLStyle(LLStyle::Params().visible(is_visible).color(color));
-
- mFontHeight = llceil(mStyle->getFont()->getLineHeight());
-}
-
-LLNormalTextSegment::~LLNormalTextSegment()
-{
- mImageLoadedConnection.disconnect();
-}
-
-
-F32 LLNormalTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
-{
- if( end - start > 0 )
- {
- return drawClippedSegment( getStart() + start, getStart() + end, selection_start, selection_end, draw_rect);
- }
- return draw_rect.mLeft;
-}
-
-// Draws a single text segment, reversing the color for selection if needed.
-F32 LLNormalTextSegment::drawClippedSegment(S32 seg_start, S32 seg_end, S32 selection_start, S32 selection_end, LLRect rect)
-{
- F32 alpha = LLViewDrawContext::getCurrentContext().mAlpha;
-
- const LLWString &text = mEditor.getWText();
-
- F32 right_x = rect.mLeft;
- if (!mStyle->isVisible())
- {
- return right_x;
- }
-
- const LLFontGL* font = mStyle->getFont();
-
- LLColor4 color = (mEditor.getReadOnly() ? mStyle->getReadOnlyColor() : mStyle->getColor()) % alpha;
-
- if( selection_start > seg_start )
- {
- // Draw normally
- S32 start = seg_start;
- S32 end = llmin( selection_start, seg_end );
- S32 length = end - start;
- font->render(text, start,
- rect,
- color,
- LLFontGL::LEFT, mEditor.mVAlign,
- LLFontGL::NORMAL,
- mStyle->getShadowType(),
- length,
- &right_x,
- mEditor.getUseEllipses());
- }
- rect.mLeft = (S32)ceil(right_x);
-
- if( (selection_start < seg_end) && (selection_end > seg_start) )
- {
- // Draw reversed
- S32 start = llmax( selection_start, seg_start );
- S32 end = llmin( selection_end, seg_end );
- S32 length = end - start;
-
- font->render(text, start,
- rect,
- LLColor4( 1.f - color.mV[0], 1.f - color.mV[1], 1.f - color.mV[2], 1.f ),
- LLFontGL::LEFT, mEditor.mVAlign,
- LLFontGL::NORMAL,
- LLFontGL::NO_SHADOW,
- length,
- &right_x,
- mEditor.getUseEllipses());
- }
- rect.mLeft = (S32)ceil(right_x);
- if( selection_end < seg_end )
- {
- // Draw normally
- S32 start = llmax( selection_end, seg_start );
- S32 end = seg_end;
- S32 length = end - start;
- font->render(text, start,
- rect,
- color,
- LLFontGL::LEFT, mEditor.mVAlign,
- LLFontGL::NORMAL,
- mStyle->getShadowType(),
- length,
- &right_x,
- mEditor.getUseEllipses());
- }
- return right_x;
-}
-
-BOOL LLNormalTextSegment::handleHover(S32 x, S32 y, MASK mask)
-{
- if (getStyle() && getStyle()->isLink())
- {
- // Only process the click if it's actually in this segment, not to the right of the end-of-line.
- if(mEditor.getSegmentAtLocalPos(x, y, false) == this)
- {
- LLUI::getWindow()->setCursor(UI_CURSOR_HAND);
- return TRUE;
- }
- }
- return FALSE;
-}
-
-BOOL LLNormalTextSegment::handleRightMouseDown(S32 x, S32 y, MASK mask)
-{
- if (getStyle() && getStyle()->isLink())
- {
- // Only process the click if it's actually in this segment, not to the right of the end-of-line.
- if(mEditor.getSegmentAtLocalPos(x, y, false) == this)
- {
- mEditor.createUrlContextMenu(x, y, getStyle()->getLinkHREF());
- return TRUE;
- }
- }
- return FALSE;
-}
-
-BOOL LLNormalTextSegment::handleMouseDown(S32 x, S32 y, MASK mask)
-{
- if (getStyle() && getStyle()->isLink())
- {
- // Only process the click if it's actually in this segment, not to the right of the end-of-line.
- if(mEditor.getSegmentAtLocalPos(x, y, false) == this)
- {
- // eat mouse down event on hyperlinks, so we get the mouse up
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-BOOL LLNormalTextSegment::handleMouseUp(S32 x, S32 y, MASK mask)
-{
- if (getStyle() && getStyle()->isLink())
- {
- // Only process the click if it's actually in this segment, not to the right of the end-of-line.
- if(mEditor.getSegmentAtLocalPos(x, y, false) == this)
- {
- LLUrlAction::clickAction(getStyle()->getLinkHREF());
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-BOOL LLNormalTextSegment::handleToolTip(S32 x, S32 y, MASK mask)
-{
- std::string msg;
- // do we have a tooltip for a loaded keyword (for script editor)?
- if (mToken && !mToken->getToolTip().empty())
- {
- const LLWString& wmsg = mToken->getToolTip();
- LLToolTipMgr::instance().show(wstring_to_utf8str(wmsg));
- return TRUE;
- }
- // or do we have an explicitly set tooltip (e.g., for Urls)
- if (!mTooltip.empty())
- {
- LLToolTipMgr::instance().show(mTooltip);
- return TRUE;
- }
-
- return FALSE;
-}
-
-void LLNormalTextSegment::setToolTip(const std::string& tooltip)
-{
- // we cannot replace a keyword tooltip that's loaded from a file
- if (mToken)
- {
- llwarns << "LLTextSegment::setToolTip: cannot replace keyword tooltip." << llendl;
- return;
- }
- mTooltip = tooltip;
-}
-
-bool LLNormalTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
-{
- height = 0;
- width = 0;
- if (num_chars > 0)
- {
- height = mFontHeight;
- const LLWString &text = mEditor.getWText();
- // if last character is a newline, then return true, forcing line break
- width = mStyle->getFont()->getWidth(text.c_str(), mStart + first_char, num_chars);
- }
- return false;
-}
-
-S32 LLNormalTextSegment::getOffset(S32 segment_local_x_coord, S32 start_offset, S32 num_chars, bool round) const
-{
- const LLWString &text = mEditor.getWText();
- return mStyle->getFont()->charFromPixelOffset(text.c_str(), mStart + start_offset,
- (F32)segment_local_x_coord,
- F32_MAX,
- num_chars,
- round);
-}
-
-S32 LLNormalTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const
-{
- const LLWString &text = mEditor.getWText();
-
- LLUIImagePtr image = mStyle->getImage();
- if( image.notNull())
- {
- num_pixels = llmax(0, num_pixels - image->getWidth());
- }
-
- S32 last_char = mEnd;
-
- // set max characters to length of segment, or to first newline
- max_chars = llmin(max_chars, last_char - (mStart + segment_offset));
-
- // if no character yet displayed on this line, don't require word wrapping since
- // we can just move to the next line, otherwise insist on it so we make forward progress
- LLFontGL::EWordWrapStyle word_wrap_style = (line_offset == 0)
- ? LLFontGL::WORD_BOUNDARY_IF_POSSIBLE
- : LLFontGL::ONLY_WORD_BOUNDARIES;
- S32 num_chars = mStyle->getFont()->maxDrawableChars(text.c_str() + segment_offset + mStart,
- (F32)num_pixels,
- max_chars,
- word_wrap_style);
-
- if (num_chars == 0
- && line_offset == 0
- && max_chars > 0)
- {
- // If at the beginning of a line, and a single character won't fit, draw it anyway
- num_chars = 1;
- }
-
- // include *either* the EOF or newline character in this run of text
- // but not both
- S32 last_char_in_run = mStart + segment_offset + num_chars;
- // check length first to avoid indexing off end of string
- if (last_char_in_run < mEnd
- && (last_char_in_run >= mEditor.getLength() ))
- {
- num_chars++;
- }
- return num_chars;
-}
-
-void LLNormalTextSegment::dump() const
-{
- llinfos << "Segment [" <<
-// mColor.mV[VX] << ", " <<
-// mColor.mV[VY] << ", " <<
-// mColor.mV[VZ] << "]\t[" <<
- mStart << ", " <<
- getEnd() << "]" <<
- llendl;
-}
-
-
-//
-// LLInlineViewSegment
-//
-
-LLInlineViewSegment::LLInlineViewSegment(const Params& p, S32 start, S32 end)
-: LLTextSegment(start, end),
- mView(p.view),
- mForceNewLine(p.force_newline),
- mLeftPad(p.left_pad),
- mRightPad(p.right_pad),
- mTopPad(p.top_pad),
- mBottomPad(p.bottom_pad)
-{
-}
-
-LLInlineViewSegment::~LLInlineViewSegment()
-{
- mView->die();
-}
-
-bool LLInlineViewSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
-{
- if (first_char == 0 && num_chars == 0)
- {
- // we didn't fit on a line, the widget will fall on the next line
- // so dimensions here are 0
- width = 0;
- height = 0;
- }
- else
- {
- width = mLeftPad + mRightPad + mView->getRect().getWidth();
- height = mBottomPad + mTopPad + mView->getRect().getHeight();
- }
-
- return false;
-}
-
-S32 LLInlineViewSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const
-{
- // if putting a widget anywhere but at the beginning of a line
- // and the widget doesn't fit or mForceNewLine is true
- // then return 0 chars for that line, and all characters for the next
- if (line_offset != 0
- && (mForceNewLine || num_pixels < mView->getRect().getWidth()))
- {
- return 0;
- }
- else
- {
- return mEnd - mStart;
- }
-}
-
-void LLInlineViewSegment::updateLayout(const LLTextBase& editor)
-{
- LLRect start_rect = editor.getDocRectFromDocIndex(mStart);
- mView->setOrigin(start_rect.mLeft + mLeftPad, start_rect.mBottom + mBottomPad);
-}
-
-F32 LLInlineViewSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
-{
- // return padded width of widget
- // widget is actually drawn during mDocumentView's draw()
- return (F32)(draw_rect.mLeft + mView->getRect().getWidth() + mLeftPad + mRightPad);
-}
-
-void LLInlineViewSegment::unlinkFromDocument(LLTextBase* editor)
-{
- editor->removeDocumentChild(mView);
-}
-
-void LLInlineViewSegment::linkToDocument(LLTextBase* editor)
-{
- editor->addDocumentChild(mView);
-}
-
-LLLineBreakTextSegment::LLLineBreakTextSegment(S32 pos):LLTextSegment(pos,pos+1)
-{
- LLStyleSP s( new LLStyle(LLStyle::Params().visible(true)));
-
- mFontHeight = llceil(s->getFont()->getLineHeight());
-}
-LLLineBreakTextSegment::LLLineBreakTextSegment(LLStyleConstSP style,S32 pos):LLTextSegment(pos,pos+1)
-{
- mFontHeight = llceil(style->getFont()->getLineHeight());
-}
-LLLineBreakTextSegment::~LLLineBreakTextSegment()
-{
-}
-bool LLLineBreakTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
-{
- width = 0;
- height = mFontHeight;
-
- return true;
-}
-S32 LLLineBreakTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const
-{
- return 1;
-}
-F32 LLLineBreakTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
-{
- return draw_rect.mLeft;
-}
-
-LLImageTextSegment::LLImageTextSegment(LLStyleConstSP style,S32 pos,class LLTextBase& editor)
- :LLTextSegment(pos,pos+1)
- ,mStyle( style )
- ,mEditor(editor)
-{
-}
-
-LLImageTextSegment::~LLImageTextSegment()
-{
-}
-
-static const S32 IMAGE_HPAD = 3;
-
-bool LLImageTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
-{
- width = 0;
- height = llceil(mStyle->getFont()->getLineHeight());;
-
- LLUIImagePtr image = mStyle->getImage();
- if( num_chars>0 && image.notNull())
- {
- width += image->getWidth() + IMAGE_HPAD;
- height = llmax(height, image->getHeight() + IMAGE_HPAD );
- }
- return false;
-}
-
-S32 LLImageTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const
-{
- LLUIImagePtr image = mStyle->getImage();
- S32 image_width = image->getWidth();
- if(line_offset == 0 || num_pixels>image_width + IMAGE_HPAD)
- {
- return 1;
- }
- return 0;
-}
-
-F32 LLImageTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
-{
- if ( (start >= 0) && (end <= mEnd - mStart))
- {
- LLColor4 color = LLColor4::white % mEditor.getDrawContext().mAlpha;
- LLUIImagePtr image = mStyle->getImage();
- S32 style_image_height = image->getHeight();
- S32 style_image_width = image->getWidth();
- // Text is drawn from the top of the draw_rect downward
-
- S32 text_center = draw_rect.mTop - (draw_rect.getHeight() / 2);
- // Align image to center of draw rect
- S32 image_bottom = text_center - (style_image_height / 2);
- image->draw(draw_rect.mLeft, image_bottom,
- style_image_width, style_image_height, color);
-
- const S32 IMAGE_HPAD = 3;
- return draw_rect.mLeft + style_image_width + IMAGE_HPAD;
- }
- return 0.0;
-}
-
+/** + * @file lltextbase.cpp + * @author Martin Reddy + * @brief The base class of text box/editor, providing Url handling support + * + * $LicenseInfo:firstyear=2009&license=viewergpl$ + * + * Copyright (c) 2009, Linden Research, Inc. + * + * Second Life Viewer Source Code + * The source code in this file ("Source Code") is provided by Linden Lab + * to you under the terms of the GNU General Public License, version 2.0 + * ("GPL"), unless you have obtained a separate licensing agreement + * ("Other License"), formally executed by you and Linden Lab. Terms of + * the GPL can be found in doc/GPL-license.txt in this distribution, or + * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * + * There are special exceptions to the terms and conditions of the GPL as + * it is applied to this Source Code. View the full text of the exception + * in the file doc/FLOSS-exception.txt in this software distribution, or + * online at + * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * + * By copying, modifying or distributing this software, you acknowledge + * that you have read and understood your obligations described above, + * and agree to abide by those obligations. + * + * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO + * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, + * COMPLETENESS OR PERFORMANCE. + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +#include "lltextbase.h" + +#include "lllocalcliprect.h" +#include "llmenugl.h" +#include "llscrollcontainer.h" +#include "llstl.h" +#include "lltextparser.h" +#include "lltextutil.h" +#include "lltooltip.h" +#include "lluictrl.h" +#include "llurlaction.h" +#include "llurlregistry.h" +#include "llview.h" +#include "llwindow.h" +#include <boost/bind.hpp> + +const F32 CURSOR_FLASH_DELAY = 1.0f; // in seconds +const S32 CURSOR_THICKNESS = 2; + +LLTextBase::line_info::line_info(S32 index_start, S32 index_end, LLRect rect, S32 line_num) +: mDocIndexStart(index_start), + mDocIndexEnd(index_end), + mRect(rect), + mLineNum(line_num) +{} + +bool LLTextBase::compare_segment_end::operator()(const LLTextSegmentPtr& a, const LLTextSegmentPtr& b) const +{ + // sort empty spans (e.g. 11-11) after previous non-empty spans (e.g. 5-11) + if (a->getEnd() == b->getEnd()) + { + return a->getStart() < b->getStart(); + } + return a->getEnd() < b->getEnd(); +} + + +// helper functors +struct LLTextBase::compare_bottom +{ + bool operator()(const S32& a, const LLTextBase::line_info& b) const + { + return a > b.mRect.mBottom; // bottom of a is higher than bottom of b + } + + bool operator()(const LLTextBase::line_info& a, const S32& b) const + { + return a.mRect.mBottom > b; // bottom of a is higher than bottom of b + } + + bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const + { + return a.mRect.mBottom > b.mRect.mBottom; // bottom of a is higher than bottom of b + } + +}; + +// helper functors +struct LLTextBase::compare_top +{ + bool operator()(const S32& a, const LLTextBase::line_info& b) const + { + return a > b.mRect.mTop; // top of a is higher than top of b + } + + bool operator()(const LLTextBase::line_info& a, const S32& b) const + { + return a.mRect.mTop > b; // top of a is higher than top of b + } + + bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const + { + return a.mRect.mTop > b.mRect.mTop; // top of a is higher than top of b + } +}; + +struct LLTextBase::line_end_compare +{ + bool operator()(const S32& pos, const LLTextBase::line_info& info) const + { + return (pos < info.mDocIndexEnd); + } + + bool operator()(const LLTextBase::line_info& info, const S32& pos) const + { + return (info.mDocIndexEnd < pos); + } + + bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const + { + return (a.mDocIndexEnd < b.mDocIndexEnd); + } + +}; + +////////////////////////////////////////////////////////////////////////// +// +// LLTextBase +// + +// register LLTextBase::Params under name "textbase" +static LLWidgetNameRegistry::StaticRegistrar sRegisterTextBaseParams(&typeid(LLTextBase::Params), "textbase"); + +LLTextBase::LineSpacingParams::LineSpacingParams() +: multiple("multiple", 1.f), + pixels("pixels", 0) +{ +} + + +LLTextBase::Params::Params() +: cursor_color("cursor_color"), + text_color("text_color"), + text_readonly_color("text_readonly_color"), + bg_visible("bg_visible", false), + border_visible("border_visible", false), + bg_readonly_color("bg_readonly_color"), + bg_writeable_color("bg_writeable_color"), + bg_focus_color("bg_focus_color"), + allow_scroll("allow_scroll", true), + plain_text("plain_text",false), + track_end("track_end", false), + read_only("read_only", false), + v_pad("v_pad", 0), + h_pad("h_pad", 0), + clip_partial("clip_partial", true), + line_spacing("line_spacing"), + max_text_length("max_length", 255), + font_shadow("font_shadow"), + wrap("wrap"), + use_ellipses("use_ellipses", false), + allow_html("allow_html", false), + parse_highlights("parse_highlights", false) +{ + addSynonym(track_end, "track_bottom"); + addSynonym(wrap, "word_wrap"); +} + + +LLTextBase::LLTextBase(const LLTextBase::Params &p) +: LLUICtrl(p, LLTextViewModelPtr(new LLTextViewModel)), + mURLClickSignal(), + mMaxTextByteLength( p.max_text_length ), + mDefaultFont(p.font), + mFontShadow(p.font_shadow), + mPopupMenu(NULL), + mReadOnly(p.read_only), + mCursorColor(p.cursor_color), + mFgColor(p.text_color), + mBorderVisible( p.border_visible ), + mReadOnlyFgColor(p.text_readonly_color), + mWriteableBgColor(p.bg_writeable_color), + mReadOnlyBgColor(p.bg_readonly_color), + mFocusBgColor(p.bg_focus_color), + mReflowIndex(S32_MAX), + mCursorPos( 0 ), + mScrollNeeded(FALSE), + mDesiredXPixel(-1), + mHPad(p.h_pad), + mVPad(p.v_pad), + mHAlign(p.font_halign), + mVAlign(p.font_valign), + mLineSpacingMult(p.line_spacing.multiple), + mLineSpacingPixels(p.line_spacing.pixels), + mClipPartial(p.clip_partial && !p.allow_scroll), + mTrackEnd( p.track_end ), + mScrollIndex(-1), + mSelectionStart( 0 ), + mSelectionEnd( 0 ), + mIsSelecting( FALSE ), + mPlainText ( p.plain_text ), + mWordWrap(p.wrap), + mUseEllipses( p.use_ellipses ), + mParseHTML(p.allow_html), + mParseHighlights(p.parse_highlights), + mBGVisible(p.bg_visible), + mScroller(NULL) +{ + if(p.allow_scroll) + { + LLScrollContainer::Params scroll_params; + scroll_params.name = "text scroller"; + scroll_params.rect = getLocalRect(); + scroll_params.follows.flags = FOLLOWS_ALL; + scroll_params.is_opaque = false; + scroll_params.mouse_opaque = false; + scroll_params.min_auto_scroll_rate = 200; + scroll_params.max_auto_scroll_rate = 800; + scroll_params.border_visible = p.border_visible; + mScroller = LLUICtrlFactory::create<LLScrollContainer>(scroll_params); + addChild(mScroller); + } + + LLView::Params view_params; + view_params.name = "text_contents"; + view_params.rect = LLRect(0, 500, 500, 0); + view_params.mouse_opaque = false; + + mDocumentView = LLUICtrlFactory::create<LLView>(view_params); + if (mScroller) + { + mScroller->addChild(mDocumentView); + } + else + { + addChild(mDocumentView); + } + + createDefaultSegment(); + + updateRects(); +} + +LLTextBase::~LLTextBase() +{ + // Menu, like any other LLUICtrl, is deleted by its parent - gMenuHolder + + mSegments.clear(); +} + +void LLTextBase::initFromParams(const LLTextBase::Params& p) +{ + LLUICtrl::initFromParams(p); + resetDirty(); // Update saved text state + updateSegments(); + + // HACK: work around enabled == readonly design bug -- RN + // setEnabled will modify our read only status, so do this after + // LLTextBase::initFromParams + if (p.read_only.isProvided()) + { + mReadOnly = p.read_only; + } + + // HACK: text editors always need to be enabled so that we can scroll + LLView::setEnabled(true); +} + +bool LLTextBase::truncate() +{ + BOOL did_truncate = FALSE; + + // First rough check - if we're less than 1/4th the size, we're OK + if (getLength() >= S32(mMaxTextByteLength / 4)) + { + // Have to check actual byte size + LLWString text(getWText()); + S32 utf8_byte_size = wstring_utf8_length(text); + if ( utf8_byte_size > mMaxTextByteLength ) + { + // Truncate safely in UTF-8 + std::string temp_utf8_text = wstring_to_utf8str(text); + temp_utf8_text = utf8str_truncate( temp_utf8_text, mMaxTextByteLength ); + LLWString text = utf8str_to_wstring( temp_utf8_text ); + // remove extra bit of current string, to preserve formatting, etc. + removeStringNoUndo(text.size(), getWText().size() - text.size()); + did_truncate = TRUE; + } + } + + return did_truncate; +} + +LLStyle::Params LLTextBase::getDefaultStyleParams() +{ + return LLStyle::Params() + .color(LLUIColor(&mFgColor)) + .readonly_color(LLUIColor(&mReadOnlyFgColor)) + .font(mDefaultFont) + .drop_shadow(mFontShadow); +} + +void LLTextBase::onValueChange(S32 start, S32 end) +{ +} + + +// Draws the black box behind the selected text +void LLTextBase::drawSelectionBackground() +{ + // Draw selection even if we don't have keyboard focus for search/replace + if( hasSelection() && !mLineInfoList.empty()) + { + std::vector<LLRect> selection_rects; + + S32 selection_left = llmin( mSelectionStart, mSelectionEnd ); + S32 selection_right = llmax( mSelectionStart, mSelectionEnd ); + LLRect selection_rect = mVisibleTextRect; + + // Skip through the lines we aren't drawing. + LLRect content_display_rect = getVisibleDocumentRect(); + + // binary search for line that starts before top of visible buffer + line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mTop, compare_bottom()); + line_list_t::const_iterator end_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top()); + + bool done = false; + + // Find the coordinates of the selected area + for (;line_iter != end_iter && !done; ++line_iter) + { + // is selection visible on this line? + if (line_iter->mDocIndexEnd > selection_left && line_iter->mDocIndexStart < selection_right) + { + segment_set_t::iterator segment_iter; + S32 segment_offset; + getSegmentAndOffset(line_iter->mDocIndexStart, &segment_iter, &segment_offset); + + LLRect selection_rect; + selection_rect.mLeft = line_iter->mRect.mLeft; + selection_rect.mRight = line_iter->mRect.mLeft; + selection_rect.mBottom = line_iter->mRect.mBottom; + selection_rect.mTop = line_iter->mRect.mTop; + + for(;segment_iter != mSegments.end(); ++segment_iter, segment_offset = 0) + { + LLTextSegmentPtr segmentp = *segment_iter; + + S32 segment_line_start = segmentp->getStart() + segment_offset; + S32 segment_line_end = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd); + + if (segment_line_start > segment_line_end) break; + + S32 segment_width = 0; + S32 segment_height = 0; + + // if selection after beginning of segment + if(selection_left >= segment_line_start) + { + S32 num_chars = llmin(selection_left, segment_line_end) - segment_line_start; + segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); + selection_rect.mLeft += segment_width; + } + + // if selection_right == segment_line_end then that means we are the first character of the next segment + // or first character of the next line, in either case we want to add the length of the current segment + // to the selection rectangle and continue. + // if selection right > segment_line_end then selection spans end of current segment... + if (selection_right >= segment_line_end) + { + // extend selection slightly beyond end of line + // to indicate selection of newline character (use "n" character to determine width) + S32 num_chars = segment_line_end - segment_line_start; + segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); + selection_rect.mRight += segment_width; + } + // else if selection ends on current segment... + else + { + S32 num_chars = selection_right - segment_line_start; + segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); + selection_rect.mRight += segment_width; + + break; + } + } + selection_rects.push_back(selection_rect); + } + } + + // Draw the selection box (we're using a box instead of reversing the colors on the selected text). + gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); + const LLColor4& color = mReadOnly ? mReadOnlyFgColor.get() : mFgColor.get(); + F32 alpha = hasFocus() ? 0.7f : 0.3f; + alpha *= getDrawContext().mAlpha; + LLColor4 selection_color(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE], alpha); + + for (std::vector<LLRect>::iterator rect_it = selection_rects.begin(); + rect_it != selection_rects.end(); + ++rect_it) + { + LLRect selection_rect = *rect_it; + selection_rect.translate(mVisibleTextRect.mLeft - content_display_rect.mLeft, mVisibleTextRect.mBottom - content_display_rect.mBottom); + gl_rect_2d(selection_rect, selection_color); + } + } +} + +void LLTextBase::drawCursor() +{ + F32 alpha = getDrawContext().mAlpha; + + if( hasFocus() + && gFocusMgr.getAppHasFocus() + && !mReadOnly) + { + const LLWString &wtext = getWText(); + const llwchar* text = wtext.c_str(); + + LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos); + cursor_rect.translate(-1, 0); + segment_set_t::iterator seg_it = getSegIterContaining(mCursorPos); + + // take style from last segment + LLTextSegmentPtr segmentp; + + if (seg_it != mSegments.end()) + { + segmentp = *seg_it; + } + else + { + //segmentp = mSegments.back(); + return; + } + + // Draw the cursor + // (Flash the cursor every half second starting a fixed time after the last keystroke) + F32 elapsed = mCursorBlinkTimer.getElapsedTimeF32(); + if( (elapsed < CURSOR_FLASH_DELAY ) || (S32(elapsed * 2) & 1) ) + { + + if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection()) + { + S32 segment_width = 0; + S32 segment_height = 0; + segmentp->getDimensions(mCursorPos - segmentp->getStart(), 1, segment_width, segment_height); + S32 width = llmax(CURSOR_THICKNESS, segment_width); + cursor_rect.mRight = cursor_rect.mLeft + width; + } + else + { + cursor_rect.mRight = cursor_rect.mLeft + CURSOR_THICKNESS; + } + + gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); + + LLColor4 cursor_color = mCursorColor.get() % alpha; + gGL.color4fv( cursor_color.mV ); + + gl_rect_2d(cursor_rect); + + if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection() && text[mCursorPos] != '\n') + { + LLColor4 text_color; + const LLFontGL* fontp; + if (segmentp) + { + text_color = segmentp->getColor(); + fontp = segmentp->getStyle()->getFont(); + } + else if (mReadOnly) + { + text_color = mReadOnlyFgColor.get(); + fontp = mDefaultFont; + } + else + { + text_color = mFgColor.get(); + fontp = mDefaultFont; + } + fontp->render(text, mCursorPos, cursor_rect, + LLColor4(1.f - text_color.mV[VRED], 1.f - text_color.mV[VGREEN], 1.f - text_color.mV[VBLUE], alpha), + LLFontGL::LEFT, mVAlign, + LLFontGL::NORMAL, + LLFontGL::NO_SHADOW, + 1); + } + + // Make sure the IME is in the right place + LLRect screen_pos = calcScreenRect(); + LLCoordGL ime_pos( screen_pos.mLeft + llfloor(cursor_rect.mLeft), screen_pos.mBottom + llfloor(cursor_rect.mTop) ); + + ime_pos.mX = (S32) (ime_pos.mX * LLUI::sGLScaleFactor.mV[VX]); + ime_pos.mY = (S32) (ime_pos.mY * LLUI::sGLScaleFactor.mV[VY]); + getWindow()->setLanguageTextInput( ime_pos ); + } + } +} + +void LLTextBase::drawText() +{ + const S32 text_len = getLength(); + if( text_len <= 0 ) + { + return; + } + S32 selection_left = -1; + S32 selection_right = -1; + // Draw selection even if we don't have keyboard focus for search/replace + if( hasSelection()) + { + selection_left = llmin( mSelectionStart, mSelectionEnd ); + selection_right = llmax( mSelectionStart, mSelectionEnd ); + } + + LLRect scrolled_view_rect = getVisibleDocumentRect(); + std::pair<S32, S32> line_range = getVisibleLines(mClipPartial); + S32 first_line = line_range.first; + S32 last_line = line_range.second; + if (first_line >= last_line) + { + return; + } + + S32 line_start = getLineStart(first_line); + // find first text segment that spans top of visible portion of text buffer + segment_set_t::iterator seg_iter = getSegIterContaining(line_start); + if (seg_iter == mSegments.end()) + { + return; + } + + LLTextSegmentPtr cur_segment = *seg_iter; + + for (S32 cur_line = first_line; cur_line < last_line; cur_line++) + { + S32 next_line = cur_line + 1; + line_info& line = mLineInfoList[cur_line]; + + S32 next_start = -1; + S32 line_end = text_len; + + if (next_line < getLineCount()) + { + next_start = getLineStart(next_line); + line_end = next_start; + } + + LLRect text_rect(line.mRect.mLeft + mVisibleTextRect.mLeft - scrolled_view_rect.mLeft, + line.mRect.mTop - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom, + llmin(mDocumentView->getRect().getWidth(), line.mRect.mRight) - scrolled_view_rect.mLeft, + line.mRect.mBottom - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom); + + // draw a single line of text + S32 seg_start = line_start; + while( seg_start < line_end ) + { + while( cur_segment->getEnd() <= seg_start ) + { + seg_iter++; + if (seg_iter == mSegments.end()) + { + llwarns << "Ran off the segmentation end!" << llendl; + + return; + } + cur_segment = *seg_iter; + } + + S32 clipped_end = llmin( line_end, cur_segment->getEnd() ) - cur_segment->getStart(); + + if (mUseEllipses // using ellipses + && clipped_end == line_end // last segment on line + && next_line == last_line // this is the last visible line + && last_line < (S32)mLineInfoList.size()) // and there is more text to display + { + // more lines of text to go, but we can't fit them + // so shrink text rect to force ellipses + text_rect.mRight -= 2; + } + + text_rect.mLeft = (S32)(cur_segment->draw(seg_start - cur_segment->getStart(), clipped_end, selection_left, selection_right, text_rect)); + + seg_start = clipped_end + cur_segment->getStart(); + } + + line_start = next_start; + } +} + +/////////////////////////////////////////////////////////////////// +// Returns change in number of characters in mWText + +S32 LLTextBase::insertStringNoUndo(S32 pos, const LLWString &wstr, LLTextBase::segment_vec_t* segments ) +{ + LLWString text(getWText()); + S32 old_len = text.length(); // length() returns character length + S32 insert_len = wstr.length(); + + pos = getEditableIndex(pos, true); + + segment_set_t::iterator seg_iter = getSegIterContaining(pos); + + LLTextSegmentPtr default_segment; + + LLTextSegmentPtr segmentp; + if (seg_iter != mSegments.end()) + { + segmentp = *seg_iter; + } + else + { + //segmentp = mSegments.back(); + return pos; + } + + if (segmentp->canEdit()) + { + segmentp->setEnd(segmentp->getEnd() + insert_len); + if (seg_iter != mSegments.end()) + { + ++seg_iter; + } + } + else + { + // create default editable segment to hold new text + LLStyleConstSP sp(new LLStyle(getDefaultStyleParams())); + default_segment = new LLNormalTextSegment( sp, pos, pos + insert_len, *this); + } + + // shift remaining segments to right + for(;seg_iter != mSegments.end(); ++seg_iter) + { + LLTextSegmentPtr segmentp = *seg_iter; + segmentp->setStart(segmentp->getStart() + insert_len); + segmentp->setEnd(segmentp->getEnd() + insert_len); + } + + // insert new segments + if (segments) + { + if (default_segment.notNull()) + { + // potentially overwritten by segments passed in + insertSegment(default_segment); + } + for (segment_vec_t::iterator seg_iter = segments->begin(); + seg_iter != segments->end(); + ++seg_iter) + { + LLTextSegment* segmentp = *seg_iter; + insertSegment(segmentp); + } + } + + text.insert(pos, wstr); + getViewModel()->setDisplay(text); + + if ( truncate() ) + { + insert_len = getLength() - old_len; + } + + onValueChange(pos, pos + insert_len); + needsReflow(pos); + + return insert_len; +} + +S32 LLTextBase::removeStringNoUndo(S32 pos, S32 length) +{ + LLWString text(getWText()); + segment_set_t::iterator seg_iter = getSegIterContaining(pos); + while(seg_iter != mSegments.end()) + { + LLTextSegmentPtr segmentp = *seg_iter; + S32 end = pos + length; + if (segmentp->getStart() < pos) + { + // deleting from middle of segment + if (segmentp->getEnd() > end) + { + segmentp->setEnd(segmentp->getEnd() - length); + } + // truncating segment + else + { + segmentp->setEnd(pos); + } + } + else if (segmentp->getStart() < end) + { + // deleting entire segment + if (segmentp->getEnd() <= end) + { + // remove segment + segmentp->unlinkFromDocument(this); + segment_set_t::iterator seg_to_erase(seg_iter++); + mSegments.erase(seg_to_erase); + continue; + } + // deleting head of segment + else + { + segmentp->setStart(pos); + segmentp->setEnd(segmentp->getEnd() - length); + } + } + else + { + // shifting segments backward to fill deleted portion + segmentp->setStart(segmentp->getStart() - length); + segmentp->setEnd(segmentp->getEnd() - length); + } + ++seg_iter; + } + + text.erase(pos, length); + getViewModel()->setDisplay(text); + + // recreate default segment in case we erased everything + createDefaultSegment(); + + onValueChange(pos, pos); + needsReflow(pos); + + return -length; // This will be wrong if someone calls removeStringNoUndo with an excessive length +} + +S32 LLTextBase::overwriteCharNoUndo(S32 pos, llwchar wc) +{ + if (pos > (S32)getLength()) + { + return 0; + } + LLWString text(getWText()); + text[pos] = wc; + getViewModel()->setDisplay(text); + + onValueChange(pos, pos + 1); + needsReflow(pos); + + return 1; +} + + +void LLTextBase::createDefaultSegment() +{ + // ensures that there is always at least one segment + if (mSegments.empty()) + { + LLStyleConstSP sp(new LLStyle(getDefaultStyleParams())); + LLTextSegmentPtr default_segment = new LLNormalTextSegment( sp, 0, getLength() + 1, *this); + mSegments.insert(default_segment); + default_segment->linkToDocument(this); + } +} + +void LLTextBase::insertSegment(LLTextSegmentPtr segment_to_insert) +{ + if (segment_to_insert.isNull()) + { + return; + } + + segment_set_t::iterator cur_seg_iter = getSegIterContaining(segment_to_insert->getStart()); + S32 reflow_start_index = 0; + + if (cur_seg_iter == mSegments.end()) + { + mSegments.insert(segment_to_insert); + segment_to_insert->linkToDocument(this); + reflow_start_index = segment_to_insert->getStart(); + } + else + { + LLTextSegmentPtr cur_segmentp = *cur_seg_iter; + reflow_start_index = cur_segmentp->getStart(); + if (cur_segmentp->getStart() < segment_to_insert->getStart()) + { + S32 old_segment_end = cur_segmentp->getEnd(); + // split old at start point for new segment + cur_segmentp->setEnd(segment_to_insert->getStart()); + // advance to next segment + // insert remainder of old segment + LLStyleConstSP sp = cur_segmentp->getStyle(); + LLTextSegmentPtr remainder_segment = new LLNormalTextSegment( sp, segment_to_insert->getStart(), old_segment_end, *this); + mSegments.insert(cur_seg_iter, remainder_segment); + remainder_segment->linkToDocument(this); + // insert new segment before remainder of old segment + mSegments.insert(cur_seg_iter, segment_to_insert); + + segment_to_insert->linkToDocument(this); + // at this point, there will be two overlapping segments owning the text + // associated with the incoming segment + } + else + { + mSegments.insert(cur_seg_iter, segment_to_insert); + segment_to_insert->linkToDocument(this); + } + + // now delete/truncate remaining segments as necessary + // cur_seg_iter points to segment before incoming segment + while(cur_seg_iter != mSegments.end()) + { + cur_segmentp = *cur_seg_iter; + if (cur_segmentp == segment_to_insert) + { + ++cur_seg_iter; + continue; + } + + if (cur_segmentp->getStart() >= segment_to_insert->getStart()) + { + if(cur_segmentp->getEnd() <= segment_to_insert->getEnd()) + { + cur_segmentp->unlinkFromDocument(this); + // grab copy of iterator to erase, and bump it + segment_set_t::iterator seg_to_erase(cur_seg_iter++); + mSegments.erase(seg_to_erase); + continue; + } + else + { + // last overlapping segment, clip to end of incoming segment + // and stop traversal + cur_segmentp->setStart(segment_to_insert->getEnd()); + break; + } + } + ++cur_seg_iter; + } + } + + // layout potentially changed + needsReflow(reflow_start_index); +} + +BOOL LLTextBase::handleMouseDown(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleMouseDown(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleMouseDown(x, y, mask); +} + +BOOL LLTextBase::handleMouseUp(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleMouseUp(x, y, mask)) + { + // Did we just click on a link? + if (cur_segment->getStyle() + && cur_segment->getStyle()->isLink()) + { + // *TODO: send URL here? + mURLClickSignal(this, LLSD() ); + } + return TRUE; + } + + return LLUICtrl::handleMouseUp(x, y, mask); +} + +BOOL LLTextBase::handleMiddleMouseDown(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleMiddleMouseDown(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleMiddleMouseDown(x, y, mask); +} + +BOOL LLTextBase::handleMiddleMouseUp(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleMiddleMouseUp(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleMiddleMouseUp(x, y, mask); +} + +BOOL LLTextBase::handleRightMouseDown(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleRightMouseDown(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleRightMouseDown(x, y, mask); +} + +BOOL LLTextBase::handleRightMouseUp(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleRightMouseUp(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleRightMouseUp(x, y, mask); +} + +BOOL LLTextBase::handleDoubleClick(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleDoubleClick(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleDoubleClick(x, y, mask); +} + +BOOL LLTextBase::handleHover(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleHover(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleHover(x, y, mask); +} + +BOOL LLTextBase::handleScrollWheel(S32 x, S32 y, S32 clicks) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleScrollWheel(x, y, clicks)) + { + return TRUE; + } + + return LLUICtrl::handleScrollWheel(x, y, clicks); +} + +BOOL LLTextBase::handleToolTip(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleToolTip(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleToolTip(x, y, mask); +} + + +void LLTextBase::reshape(S32 width, S32 height, BOOL called_from_parent) +{ + if (width != getRect().getWidth() || height != getRect().getHeight()) + { + bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false; + + LLUICtrl::reshape( width, height, called_from_parent ); + + if (mScroller && scrolled_to_bottom && mTrackEnd) + { + // keep bottom of text buffer visible + // do this here as well as in reflow to handle case + // where shrinking from top, which causes buffer to temporarily + // not be scrolled to the bottom, since the scroll index + // specified the _top_ of the visible document region + mScroller->goToBottom(); + } + + // do this first after reshape, because other things depend on + // up-to-date mVisibleTextRect + updateRects(); + + needsReflow(); + } +} + +void LLTextBase::draw() +{ + // reflow if needed, on demand + reflow(); + + // then update scroll position, as cursor may have moved + if (!mReadOnly) + { + updateScrollFromCursor(); + } + + LLRect doc_rect; + if (mScroller) + { + mScroller->localRectToOtherView(mScroller->getContentWindowRect(), &doc_rect, this); + } + else + { + doc_rect = getLocalRect(); + } + + if (mBGVisible) + { + // clip background rect against extents, if we support scrolling + LLLocalClipRect clip(doc_rect, mScroller != NULL); + + LLColor4 bg_color = mReadOnly + ? mReadOnlyBgColor.get() + : hasFocus() + ? mFocusBgColor.get() + : mWriteableBgColor.get(); + gl_rect_2d(mVisibleTextRect, bg_color, TRUE); + } + + // draw document view + LLUICtrl::draw(); + + { + // only clip if we support scrolling (mScroller != NULL) + LLLocalClipRect clip(doc_rect, mScroller != NULL); + drawSelectionBackground(); + drawText(); + drawCursor(); + } +} + + +//virtual +void LLTextBase::setColor( const LLColor4& c ) +{ + mFgColor = c; +} + +//virtual +void LLTextBase::setReadOnlyColor(const LLColor4 &c) +{ + mReadOnlyFgColor = c; +} + +//virtual +void LLTextBase::handleVisibilityChange( BOOL new_visibility ) +{ + if(!new_visibility && mPopupMenu) + { + mPopupMenu->hide(); + } + LLUICtrl::handleVisibilityChange(new_visibility); +} + +//virtual +void LLTextBase::setValue(const LLSD& value ) +{ + setText(value.asString()); +} + +//virtual +BOOL LLTextBase::canDeselect() const +{ + return hasSelection(); +} + + +//virtual +void LLTextBase::deselect() +{ + mSelectionStart = 0; + mSelectionEnd = 0; + mIsSelecting = FALSE; +} + + +// Sets the scrollbar from the cursor position +void LLTextBase::updateScrollFromCursor() +{ + // Update scroll position even in read-only mode (when there's no cursor displayed) + // because startOfDoc()/endOfDoc() modify cursor position. See EXT-736. + + if (!mScrollNeeded || !mScroller) + { + return; + } + mScrollNeeded = FALSE; + + // scroll so that the cursor is at the top of the page + LLRect scroller_doc_window = getVisibleDocumentRect(); + LLRect cursor_rect_doc = getLocalRectFromDocIndex(mCursorPos); + cursor_rect_doc.translate(scroller_doc_window.mLeft, scroller_doc_window.mBottom); + mScroller->scrollToShowRect(cursor_rect_doc, LLRect(0, scroller_doc_window.getHeight() - 5, scroller_doc_window.getWidth(), 5)); +} + +S32 LLTextBase::getLeftOffset(S32 width) +{ + switch (mHAlign) + { + case LLFontGL::LEFT: + return mHPad; + case LLFontGL::HCENTER: + return mHPad + llmax(0, (mVisibleTextRect.getWidth() - width - mHPad) / 2); + case LLFontGL::RIGHT: + return mVisibleTextRect.getWidth() - width; + default: + return mHPad; + } +} + + +static LLFastTimer::DeclareTimer FTM_TEXT_REFLOW ("Text Reflow"); +void LLTextBase::reflow() +{ + LLFastTimer ft(FTM_TEXT_REFLOW); + + updateSegments(); + + if (mReflowIndex == S32_MAX) + { + return; + } + + bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false; + + LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos); + bool follow_selection = getLocalRect().overlaps(cursor_rect); // cursor is (potentially) visible + + // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing + cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop; + cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom; + + S32 first_line = getFirstVisibleLine(); + + // if scroll anchor not on first line, update it to first character of first line + if (!mLineInfoList.empty() + && (mScrollIndex < mLineInfoList[first_line].mDocIndexStart + || mScrollIndex >= mLineInfoList[first_line].mDocIndexEnd)) + { + mScrollIndex = mLineInfoList[first_line].mDocIndexStart; + } + LLRect first_char_rect = getLocalRectFromDocIndex(mScrollIndex); + // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing + first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop; + first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom; + + S32 reflow_count = 0; + while(mReflowIndex < S32_MAX) + { + // we can get into an infinite loop if the document height does not monotonically increase + // with decreasing width (embedded ui elements with alternate layouts). In that case, + // we want to stop reflowing after 2 iterations. We use 2, since we need to handle the case + // of introducing a vertical scrollbar causing a reflow with less width. We should also always + // use an even number of iterations to avoid user visible oscillation of the layout + if(++reflow_count > 2) + { + lldebugs << "Breaking out of reflow due to possible infinite loop in " << getName() << llendl; + break; + } + + S32 start_index = mReflowIndex; + mReflowIndex = S32_MAX; + + // shrink document to minimum size (visible portion of text widget) + // to force inlined widgets with follows set to shrink + mDocumentView->reshape(mVisibleTextRect.getWidth(), mDocumentView->getRect().getHeight()); + + S32 cur_top = 0; + + segment_set_t::iterator seg_iter = mSegments.begin(); + S32 seg_offset = 0; + S32 line_start_index = 0; + const S32 text_available_width = mVisibleTextRect.getWidth() - mHPad; // reserve room for margin + S32 remaining_pixels = text_available_width; + S32 line_count = 0; + + // find and erase line info structs starting at start_index and going to end of document + if (!mLineInfoList.empty()) + { + // find first element whose end comes after start_index + line_list_t::iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), start_index, line_end_compare()); + line_start_index = iter->mDocIndexStart; + line_count = iter->mLineNum; + cur_top = iter->mRect.mTop; + getSegmentAndOffset(iter->mDocIndexStart, &seg_iter, &seg_offset); + mLineInfoList.erase(iter, mLineInfoList.end()); + } + + S32 line_height = 0; + + while(seg_iter != mSegments.end()) + { + LLTextSegmentPtr segment = *seg_iter; + + // track maximum height of any segment on this line + S32 cur_index = segment->getStart() + seg_offset; + + // ask segment how many character fit in remaining space + S32 character_count = segment->getNumChars(getWordWrap() ? llmax(0, remaining_pixels) : S32_MAX, + seg_offset, + cur_index - line_start_index, + S32_MAX); + + S32 segment_width, segment_height; + bool force_newline = segment->getDimensions(seg_offset, character_count, segment_width, segment_height); + // grow line height as necessary based on reported height of this segment + line_height = llmax(line_height, segment_height); + remaining_pixels -= segment_width; + + seg_offset += character_count; + + S32 last_segment_char_on_line = segment->getStart() + seg_offset; + + S32 text_actual_width = text_available_width - remaining_pixels; + S32 text_left = getLeftOffset(text_actual_width); + LLRect line_rect(text_left, + cur_top, + text_left + text_actual_width, + cur_top - line_height); + + // if we didn't finish the current segment... + if (last_segment_char_on_line < segment->getEnd()) + { + // add line info and keep going + mLineInfoList.push_back(line_info( + line_start_index, + last_segment_char_on_line, + line_rect, + line_count)); + + line_start_index = segment->getStart() + seg_offset; + cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; + remaining_pixels = text_available_width; + line_height = 0; + } + // ...just consumed last segment.. + else if (++segment_set_t::iterator(seg_iter) == mSegments.end()) + { + mLineInfoList.push_back(line_info( + line_start_index, + last_segment_char_on_line, + line_rect, + line_count)); + cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; + break; + } + // ...or finished a segment and there are segments remaining on this line + else + { + // subtract pixels used and increment segment + if (force_newline) + { + mLineInfoList.push_back(line_info( + line_start_index, + last_segment_char_on_line, + line_rect, + line_count)); + line_start_index = segment->getStart() + seg_offset; + cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; + line_height = 0; + remaining_pixels = text_available_width; + } + ++seg_iter; + seg_offset = 0; + } + if (force_newline) + { + line_count++; + } + } + + // calculate visible region for diplaying text + updateRects(); + + for (segment_set_t::iterator segment_it = mSegments.begin(); + segment_it != mSegments.end(); + ++segment_it) + { + LLTextSegmentPtr segmentp = *segment_it; + segmentp->updateLayout(*this); + + } + } + + // apply scroll constraints after reflowing text + if (!hasMouseCapture() && mScroller) + { + if (scrolled_to_bottom && mTrackEnd) + { + // keep bottom of text buffer visible + endOfDoc(); + } + else if (hasSelection() && follow_selection) + { + // keep cursor in same vertical position on screen when selecting text + LLRect new_cursor_rect_doc = getDocRectFromDocIndex(mCursorPos); + LLRect old_cursor_rect = cursor_rect; + old_cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop; + old_cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom; + + mScroller->scrollToShowRect(new_cursor_rect_doc, old_cursor_rect); + } + else + { + // keep first line of text visible + LLRect new_first_char_rect = getDocRectFromDocIndex(mScrollIndex); + + // pass in desired rect in the coordinate frame of the document viewport + LLRect old_first_char_rect = first_char_rect; + old_first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop; + old_first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom; + + mScroller->scrollToShowRect(new_first_char_rect, old_first_char_rect); + } + } + + // reset desired x cursor position + updateCursorXPos(); + } + +LLRect LLTextBase::getTextBoundingRect() +{ + reflow(); + return mTextBoundingRect; +} + + +void LLTextBase::clearSegments() +{ + mSegments.clear(); + createDefaultSegment(); +} + +S32 LLTextBase::getLineStart( S32 line ) const +{ + S32 num_lines = getLineCount(); + if (num_lines == 0) + { + return 0; + } + + line = llclamp(line, 0, num_lines-1); + return mLineInfoList[line].mDocIndexStart; +} + +S32 LLTextBase::getLineEnd( S32 line ) const +{ + S32 num_lines = getLineCount(); + if (num_lines == 0) + { + return 0; + } + + line = llclamp(line, 0, num_lines-1); + return mLineInfoList[line].mDocIndexEnd; +} + + + +S32 LLTextBase::getLineNumFromDocIndex( S32 doc_index, bool include_wordwrap) const +{ + if (mLineInfoList.empty()) + { + return 0; + } + else + { + line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), doc_index, line_end_compare()); + if (include_wordwrap) + { + return iter - mLineInfoList.begin(); + } + else + { + if (iter == mLineInfoList.end()) + { + return mLineInfoList.back().mLineNum; + } + else + { + return iter->mLineNum; + } + } + } +} + +// Given an offset into text (pos), find the corresponding line (from the start of the doc) and an offset into the line. +S32 LLTextBase::getLineOffsetFromDocIndex( S32 startpos, bool include_wordwrap) const +{ + if (mLineInfoList.empty()) + { + return startpos; + } + else + { + line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), startpos, line_end_compare()); + return startpos - iter->mDocIndexStart; + } +} + +S32 LLTextBase::getFirstVisibleLine() const +{ + LLRect visible_region = getVisibleDocumentRect(); + + // binary search for line that starts before top of visible buffer + line_list_t::const_iterator iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom()); + + return iter - mLineInfoList.begin(); +} + +std::pair<S32, S32> LLTextBase::getVisibleLines(bool fully_visible) +{ + LLRect visible_region = getVisibleDocumentRect(); + line_list_t::const_iterator first_iter; + line_list_t::const_iterator last_iter; + + // make sure we have an up-to-date mLineInfoList + reflow(); + + if (fully_visible) + { + first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_top()); + last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_bottom()); + } + else + { + first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom()); + last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_top()); + } + return std::pair<S32, S32>(first_iter - mLineInfoList.begin(), last_iter - mLineInfoList.begin()); +} + + + +LLTextViewModel* LLTextBase::getViewModel() const +{ + return (LLTextViewModel*)mViewModel.get(); +} + +void LLTextBase::addDocumentChild(LLView* view) +{ + mDocumentView->addChild(view); +} + +void LLTextBase::removeDocumentChild(LLView* view) +{ + mDocumentView->removeChild(view); +} + + +static LLFastTimer::DeclareTimer FTM_UPDATE_TEXT_SEGMENTS("Update Text Segments"); +void LLTextBase::updateSegments() +{ + LLFastTimer ft(FTM_UPDATE_TEXT_SEGMENTS); + createDefaultSegment(); +} + +void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::const_iterator* seg_iter, S32* offsetp ) const +{ + *seg_iter = getSegIterContaining(startpos); + if (*seg_iter == mSegments.end()) + { + *offsetp = 0; + } + else + { + *offsetp = startpos - (**seg_iter)->getStart(); + } +} + +void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::iterator* seg_iter, S32* offsetp ) +{ + *seg_iter = getSegIterContaining(startpos); + if (*seg_iter == mSegments.end()) + { + *offsetp = 0; + } + else + { + *offsetp = startpos - (**seg_iter)->getStart(); + } +} + +LLTextBase::segment_set_t::iterator LLTextBase::getSegIterContaining(S32 index) +{ + segment_set_t::iterator it = mSegments.upper_bound(new LLIndexSegment(index)); + return it; +} + +LLTextBase::segment_set_t::const_iterator LLTextBase::getSegIterContaining(S32 index) const +{ + LLTextBase::segment_set_t::const_iterator it = mSegments.upper_bound(new LLIndexSegment(index)); + return it; +} + +// Finds the text segment (if any) at the give local screen position +LLTextSegmentPtr LLTextBase::getSegmentAtLocalPos( S32 x, S32 y, bool hit_past_end_of_line) +{ + // Find the cursor position at the requested local screen position + S32 offset = getDocIndexFromLocalCoord( x, y, FALSE, hit_past_end_of_line); + segment_set_t::iterator seg_iter = getSegIterContaining(offset); + if (seg_iter != mSegments.end()) + { + return *seg_iter; + } + else + { + return LLTextSegmentPtr(); + } +} + +void LLTextBase::createUrlContextMenu(S32 x, S32 y, const std::string &in_url) +{ + // work out the XUI menu file to use for this url + LLUrlMatch match; + std::string url = in_url; + if (! LLUrlRegistry::instance().findUrl(url, match)) + { + return; + } + + std::string xui_file = match.getMenuName(); + if (xui_file.empty()) + { + return; + } + + // set up the callbacks for all of the potential menu items, N.B. we + // don't use const ref strings in callbacks in case url goes out of scope + LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar; + registrar.add("Url.Open", boost::bind(&LLUrlAction::openURL, url)); + registrar.add("Url.OpenInternal", boost::bind(&LLUrlAction::openURLInternal, url)); + registrar.add("Url.OpenExternal", boost::bind(&LLUrlAction::openURLExternal, url)); + registrar.add("Url.Execute", boost::bind(&LLUrlAction::executeSLURL, url)); + registrar.add("Url.Teleport", boost::bind(&LLUrlAction::teleportToLocation, url)); + registrar.add("Url.ShowProfile", boost::bind(&LLUrlAction::showProfile, url)); + registrar.add("Url.ShowOnMap", boost::bind(&LLUrlAction::showLocationOnMap, url)); + registrar.add("Url.CopyLabel", boost::bind(&LLUrlAction::copyLabelToClipboard, url)); + registrar.add("Url.CopyUrl", boost::bind(&LLUrlAction::copyURLToClipboard, url)); + + // create and return the context menu from the XUI file + delete mPopupMenu; + mPopupMenu = LLUICtrlFactory::getInstance()->createFromFile<LLContextMenu>(xui_file, LLMenuGL::sMenuContainer, + LLMenuHolderGL::child_registry_t::instance()); + if (mPopupMenu) + { + mPopupMenu->show(x, y); + LLMenuGL::showPopup(this, mPopupMenu, x, y); + } +} + +void LLTextBase::setText(const LLStringExplicit &utf8str, const LLStyle::Params& input_params) +{ + // clear out the existing text and segments + getViewModel()->setDisplay(LLWStringUtil::null); + + clearSegments(); +// createDefaultSegment(); + + deselect(); + + // append the new text (supports Url linking) + std::string text(utf8str); + LLStringUtil::removeCRLF(text); + + // appendText modifies mCursorPos... + appendText(text, false, input_params); + // ...so move cursor to top after appending text + startOfDoc(); + + onValueChange(0, getLength()); +} + +//virtual +std::string LLTextBase::getText() const +{ + return getViewModel()->getValue().asString(); +} + +// IDEVO - icons can be UI image names or UUID sent from +// server with avatar display name +static LLUIImagePtr image_from_icon_name(const std::string& icon_name) +{ + if (LLUUID::validate(icon_name)) + { + return LLUI::getUIImageByID( LLUUID(icon_name) ); + } + else + { + return LLUI::getUIImage(icon_name); + } +} + +void LLTextBase::appendTextImpl(const std::string &new_text, const LLStyle::Params& input_params) +{ + LLStyle::Params style_params(input_params); + style_params.fillFrom(getDefaultStyleParams()); + + S32 part = (S32)LLTextParser::WHOLE; + if(mParseHTML) + { + S32 start=0,end=0; + LLUrlMatch match; + std::string text = new_text; + while ( LLUrlRegistry::instance().findUrl(text, match, + boost::bind(&LLTextBase::replaceUrl, this, _1, _2, _3)) ) + { + + LLTextUtil::processUrlMatch(&match,this); + + start = match.getStart(); + end = match.getEnd()+1; + + LLStyle::Params link_params(style_params); + link_params.overwriteFrom(match.getStyle()); + + // output the text before the Url + if (start > 0) + { + if (part == (S32)LLTextParser::WHOLE || + part == (S32)LLTextParser::START) + { + part = (S32)LLTextParser::START; + } + else + { + part = (S32)LLTextParser::MIDDLE; + } + std::string subtext=text.substr(0,start); + appendAndHighlightText(subtext, part, style_params); + } + + // output the styled Url + appendAndHighlightTextImpl(match.getLabel(), part, link_params); + + // set the tooltip for the Url label + if (! match.getTooltip().empty()) + { + segment_set_t::iterator it = getSegIterContaining(getLength()-1); + if (it != mSegments.end()) + { + LLTextSegmentPtr segment = *it; + segment->setToolTip(match.getTooltip()); + } + } + + // move on to the rest of the text after the Url + if (end < (S32)text.length()) + { + text = text.substr(end,text.length() - end); + end=0; + part=(S32)LLTextParser::END; + } + else + { + break; + } + } + if (part != (S32)LLTextParser::WHOLE) + part=(S32)LLTextParser::END; + if (end < (S32)text.length()) + appendAndHighlightText(text, part, style_params); + } + else + { + appendAndHighlightText(new_text, part, style_params); + } +} + +void LLTextBase::appendText(const std::string &new_text, bool prepend_newline, const LLStyle::Params& input_params) +{ + if (new_text.empty()) + return; + + if(prepend_newline) + appendLineBreakSegment(input_params); + appendTextImpl(new_text,input_params); +} + +void LLTextBase::needsReflow(S32 index) +{ + lldebugs << "reflow on object " << (void*)this << " index = " << mReflowIndex << ", new index = " << index << llendl; + mReflowIndex = llmin(mReflowIndex, index); +} + +void LLTextBase::appendLineBreakSegment(const LLStyle::Params& style_params) +{ + segment_vec_t segments; + LLStyleConstSP sp(new LLStyle(style_params)); + segments.push_back(new LLLineBreakTextSegment(sp, getLength())); + + insertStringNoUndo(getLength(), utf8str_to_wstring("\n"), &segments); +} + +void LLTextBase::appendImageSegment(const LLStyle::Params& style_params) +{ + if(getPlainText()) + { + return; + } + segment_vec_t segments; + LLStyleConstSP sp(new LLStyle(style_params)); + segments.push_back(new LLImageTextSegment(sp, getLength(),*this)); + + insertStringNoUndo(getLength(), utf8str_to_wstring(" "), &segments); +} + +void LLTextBase::appendWidget(const LLInlineViewSegment::Params& params, const std::string& text, bool allow_undo) +{ + segment_vec_t segments; + LLWString widget_wide_text = utf8str_to_wstring(text); + segments.push_back(new LLInlineViewSegment(params, getLength(), getLength() + widget_wide_text.size())); + + insertStringNoUndo(getLength(), widget_wide_text, &segments); +} + +void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params) +{ + // Save old state + S32 selection_start = mSelectionStart; + S32 selection_end = mSelectionEnd; + BOOL was_selecting = mIsSelecting; + S32 cursor_pos = mCursorPos; + S32 old_length = getLength(); + BOOL cursor_was_at_end = (mCursorPos == old_length); + + deselect(); + + setCursorPos(old_length); + + if (mParseHighlights) + { + LLStyle::Params highlight_params(style_params); + + LLSD pieces = LLTextParser::instance().parsePartialLineHighlights(new_text, highlight_params.color(), (LLTextParser::EHighlightPosition)highlight_part); + for (S32 i = 0; i < pieces.size(); i++) + { + LLSD color_llsd = pieces[i]["color"]; + LLColor4 lcolor; + lcolor.setValue(color_llsd); + highlight_params.color = lcolor; + + LLWString wide_text; + wide_text = utf8str_to_wstring(pieces[i]["text"].asString()); + + S32 cur_length = getLength(); + LLStyleConstSP sp(new LLStyle(highlight_params)); + LLTextSegmentPtr segmentp = new LLNormalTextSegment(sp, cur_length, cur_length + wide_text.size(), *this); + segment_vec_t segments; + segments.push_back(segmentp); + insertStringNoUndo(cur_length, wide_text, &segments); + } + } + else + { + LLWString wide_text; + wide_text = utf8str_to_wstring(new_text); + + segment_vec_t segments; + S32 segment_start = old_length; + S32 segment_end = old_length + wide_text.size(); + LLStyleConstSP sp(new LLStyle(style_params)); + segments.push_back(new LLNormalTextSegment(sp, segment_start, segment_end, *this )); + + insertStringNoUndo(getLength(), wide_text, &segments); + } + + // Set the cursor and scroll position + if( selection_start != selection_end ) + { + mSelectionStart = selection_start; + mSelectionEnd = selection_end; + + mIsSelecting = was_selecting; + setCursorPos(cursor_pos); + } + else if( cursor_was_at_end ) + { + setCursorPos(getLength()); + } + else + { + setCursorPos(cursor_pos); + } +} + +void LLTextBase::appendAndHighlightText(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params) +{ + if (new_text.empty()) return; + + std::string::size_type start = 0; + std::string::size_type pos = new_text.find("\n",start); + + while(pos!=-1) + { + if(pos!=start) + { + std::string str = std::string(new_text,start,pos-start); + appendAndHighlightTextImpl(str,highlight_part, style_params); + } + appendLineBreakSegment(style_params); + start = pos+1; + pos = new_text.find("\n",start); + } + + std::string str = std::string(new_text,start,new_text.length()-start); + appendAndHighlightTextImpl(str,highlight_part, style_params); +} + + +void LLTextBase::replaceUrl(const std::string &url, + const std::string &label, + const std::string &icon) +{ + // get the full (wide) text for the editor so we can change it + LLWString text = getWText(); + LLWString wlabel = utf8str_to_wstring(label); + bool modified = false; + S32 seg_start = 0; + + // iterate through each segment looking for ones styled as links + segment_set_t::iterator it; + for (it = mSegments.begin(); it != mSegments.end(); ++it) + { + LLTextSegment *seg = *it; + LLStyleConstSP style = seg->getStyle(); + + // update segment start/end length in case we replaced text earlier + S32 seg_length = seg->getEnd() - seg->getStart(); + seg->setStart(seg_start); + seg->setEnd(seg_start + seg_length); + + // if we find a link with our Url, then replace the label + if (style->getLinkHREF() == url) + { + S32 start = seg->getStart(); + S32 end = seg->getEnd(); + text = text.substr(0, start) + wlabel + text.substr(end, text.size() - end + 1); + seg->setEnd(start + wlabel.size()); + modified = true; + } + + // Icon might be updated when more avatar or group info + // becomes available + if (style->isImage() && style->getLinkHREF() == url) + { + LLUIImagePtr image = image_from_icon_name( icon ); + if (image) + { + LLStyle::Params icon_params; + icon_params.image = image; + LLStyleConstSP new_style(new LLStyle(icon_params)); + seg->setStyle(new_style); + modified = true; + } + } + + // work out the character offset for the next segment + seg_start = seg->getEnd(); + } + + // update the editor with the new (wide) text string + if (modified) + { + getViewModel()->setDisplay(text); + deselect(); + setCursorPos(mCursorPos); + needsReflow(); + } +} + + +void LLTextBase::setWText(const LLWString& text) +{ + setText(wstring_to_utf8str(text)); +} + +const LLWString& LLTextBase::getWText() const +{ + return getViewModel()->getDisplay(); +} + +// If round is true, if the position is on the right half of a character, the cursor +// will be put to its right. If round is false, the cursor will always be put to the +// character's left. + +S32 LLTextBase::getDocIndexFromLocalCoord( S32 local_x, S32 local_y, BOOL round, bool hit_past_end_of_line) const +{ + // Figure out which line we're nearest to. + LLRect visible_region = getVisibleDocumentRect(); + + // binary search for line that starts before local_y + line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), local_y - mVisibleTextRect.mBottom + visible_region.mBottom, compare_bottom()); + + if (line_iter == mLineInfoList.end()) + { + return getLength(); // past the end + } + + S32 pos = getLength(); + S32 start_x = mVisibleTextRect.mLeft + line_iter->mRect.mLeft - visible_region.mLeft; + + segment_set_t::iterator line_seg_iter; + S32 line_seg_offset; + for(getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset); + line_seg_iter != mSegments.end(); + ++line_seg_iter, line_seg_offset = 0) + { + const LLTextSegmentPtr segmentp = *line_seg_iter; + + S32 segment_line_start = segmentp->getStart() + line_seg_offset; + S32 segment_line_length = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd) - segment_line_start; + S32 text_width, text_height; + bool newline = segmentp->getDimensions(line_seg_offset, segment_line_length, text_width, text_height); + + if(newline) + { + pos = segment_line_start + segmentp->getOffset(local_x - start_x, line_seg_offset, segment_line_length, round); + break; + } + + // if we've reached a line of text *below* the mouse cursor, doc index is first character on that line + if (hit_past_end_of_line && local_y - mVisibleTextRect.mBottom + visible_region.mBottom > line_iter->mRect.mTop) + { + pos = segment_line_start; + break; + } + if (local_x < start_x + text_width) // cursor to left of right edge of text + { + // Figure out which character we're nearest to. + S32 offset; + if (!segmentp->canEdit()) + { + S32 segment_width, segment_height; + segmentp->getDimensions(0, segmentp->getEnd() - segmentp->getStart(), segment_width, segment_height); + if (round && local_x - start_x > segment_width / 2) + { + offset = segment_line_length; + } + else + { + offset = 0; + } + } + else + { + offset = segmentp->getOffset(local_x - start_x, line_seg_offset, segment_line_length, round); + } + pos = segment_line_start + offset; + break; + } + else if (hit_past_end_of_line && segmentp->getEnd() > line_iter->mDocIndexEnd - 1) + { + // segment wraps to next line, so just set doc pos to the end of the line + // segment wraps to next line, so just set doc pos to start of next line (represented by mDocIndexEnd) + pos = llmin(getLength(), line_iter->mDocIndexEnd); + break; + } + start_x += text_width; + } + + return pos; +} + +// returns rectangle of insertion caret +// in document coordinate frame from given index into text +LLRect LLTextBase::getDocRectFromDocIndex(S32 pos) const +{ + if (mLineInfoList.empty()) + { + return LLRect(); + } + + LLRect doc_rect; + + // clamp pos to valid values + pos = llclamp(pos, 0, mLineInfoList.back().mDocIndexEnd - 1); + + // find line that contains cursor + line_list_t::const_iterator line_iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), pos, line_end_compare()); + + doc_rect.mLeft = line_iter->mRect.mLeft; + doc_rect.mBottom = line_iter->mRect.mBottom; + doc_rect.mTop = line_iter->mRect.mTop; + + segment_set_t::iterator line_seg_iter; + S32 line_seg_offset; + segment_set_t::iterator cursor_seg_iter; + S32 cursor_seg_offset; + getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset); + getSegmentAndOffset(pos, &cursor_seg_iter, &cursor_seg_offset); + + while(line_seg_iter != mSegments.end()) + { + const LLTextSegmentPtr segmentp = *line_seg_iter; + + if (line_seg_iter == cursor_seg_iter) + { + // cursor advanced to right based on difference in offset of cursor to start of line + S32 segment_width, segment_height; + segmentp->getDimensions(line_seg_offset, cursor_seg_offset - line_seg_offset, segment_width, segment_height); + doc_rect.mLeft += segment_width; + + break; + } + else + { + // add remainder of current text segment to cursor position + S32 segment_width, segment_height; + segmentp->getDimensions(line_seg_offset, (segmentp->getEnd() - segmentp->getStart()) - line_seg_offset, segment_width, segment_height); + doc_rect.mLeft += segment_width; + // offset will be 0 for all segments after the first + line_seg_offset = 0; + // go to next text segment on this line + ++line_seg_iter; + } + } + + // set rect to 0 width + doc_rect.mRight = doc_rect.mLeft; + + return doc_rect; +} + +LLRect LLTextBase::getLocalRectFromDocIndex(S32 pos) const +{ + LLRect content_window_rect = mScroller ? mScroller->getContentWindowRect() : getLocalRect(); + if (mBorderVisible) + { + content_window_rect.stretch(-1); + } + + LLRect local_rect; + + if (mLineInfoList.empty()) + { + // return default height rect in upper left + local_rect = content_window_rect; + local_rect.mBottom = local_rect.mTop - (S32)(mDefaultFont->getLineHeight()); + return local_rect; + } + + // get the rect in document coordinates + LLRect doc_rect = getDocRectFromDocIndex(pos); + + // compensate for scrolled, inset view of doc + LLRect scrolled_view_rect = getVisibleDocumentRect(); + local_rect = doc_rect; + local_rect.translate(content_window_rect.mLeft - scrolled_view_rect.mLeft, + content_window_rect.mBottom - scrolled_view_rect.mBottom); + + return local_rect; +} + +void LLTextBase::updateCursorXPos() +{ + // reset desired x cursor position + mDesiredXPixel = getLocalRectFromDocIndex(mCursorPos).mLeft; +} + + +void LLTextBase::startOfLine() +{ + S32 offset = getLineOffsetFromDocIndex(mCursorPos); + setCursorPos(mCursorPos - offset); +} + +void LLTextBase::endOfLine() +{ + S32 line = getLineNumFromDocIndex(mCursorPos); + S32 num_lines = getLineCount(); + if (line + 1 >= num_lines) + { + setCursorPos(getLength()); + } + else + { + setCursorPos( getLineStart(line + 1) - 1 ); + } +} + +void LLTextBase::startOfDoc() +{ + setCursorPos(0); + if (mScroller) + { + mScroller->goToTop(); + } +} + +void LLTextBase::endOfDoc() +{ + setCursorPos(getLength()); + if (mScroller) + { + mScroller->goToBottom(); + } +} + +void LLTextBase::changePage( S32 delta ) +{ + const S32 PIXEL_OVERLAP_ON_PAGE_CHANGE = 10; + if (delta == 0 || !mScroller) return; + + LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos); + + if( delta == -1 ) + { + mScroller->pageUp(PIXEL_OVERLAP_ON_PAGE_CHANGE); + } + else + if( delta == 1 ) + { + mScroller->pageDown(PIXEL_OVERLAP_ON_PAGE_CHANGE); + } + + if (getLocalRectFromDocIndex(mCursorPos) == cursor_rect) + { + // cursor didn't change apparent position, so move to top or bottom of document, respectively + if (delta < 0) + { + startOfDoc(); + } + else + { + endOfDoc(); + } + } + else + { + setCursorAtLocalPos(cursor_rect.getCenterX(), cursor_rect.getCenterY(), true, false); + } +} + +// Picks a new cursor position based on the screen size of text being drawn. +void LLTextBase::setCursorAtLocalPos( S32 local_x, S32 local_y, bool round, bool keep_cursor_offset ) +{ + setCursorPos(getDocIndexFromLocalCoord(local_x, local_y, round), keep_cursor_offset); +} + + +void LLTextBase::changeLine( S32 delta ) +{ + S32 line = getLineNumFromDocIndex(mCursorPos); + + S32 new_line = line; + if( (delta < 0) && (line > 0 ) ) + { + new_line = line - 1; + } + else if( (delta > 0) && (line < (getLineCount() - 1)) ) + { + new_line = line + 1; + } + + LLRect visible_region = getVisibleDocumentRect(); + + S32 new_cursor_pos = getDocIndexFromLocalCoord(mDesiredXPixel, mLineInfoList[new_line].mRect.mBottom + mVisibleTextRect.mBottom - visible_region.mBottom, TRUE); + setCursorPos(new_cursor_pos, true); +} + +bool LLTextBase::scrolledToStart() +{ + return mScroller->isAtTop(); +} + +bool LLTextBase::scrolledToEnd() +{ + return mScroller->isAtBottom(); +} + + +bool LLTextBase::setCursor(S32 row, S32 column) +{ + if (0 <= row && row < (S32)mLineInfoList.size()) + { + S32 doc_pos = mLineInfoList[row].mDocIndexStart; + column = llclamp(column, 0, mLineInfoList[row].mDocIndexEnd - mLineInfoList[row].mDocIndexStart - 1); + doc_pos += column; + updateCursorXPos(); + + return setCursorPos(doc_pos); + } + return false; +} + + +bool LLTextBase::setCursorPos(S32 cursor_pos, bool keep_cursor_offset) +{ + S32 new_cursor_pos = cursor_pos; + if (new_cursor_pos != mCursorPos) + { + new_cursor_pos = getEditableIndex(new_cursor_pos, new_cursor_pos >= mCursorPos); + } + + mCursorPos = llclamp(new_cursor_pos, 0, (S32)getLength()); + needsScroll(); + if (!keep_cursor_offset) + updateCursorXPos(); + // did we get requested position? + return new_cursor_pos == cursor_pos; +} + +// constraint cursor to editable segments of document +S32 LLTextBase::getEditableIndex(S32 index, bool increasing_direction) +{ + segment_set_t::iterator segment_iter; + S32 offset; + getSegmentAndOffset(index, &segment_iter, &offset); + if (segment_iter == mSegments.end()) + { + return 0; + } + + LLTextSegmentPtr segmentp = *segment_iter; + + if (segmentp->canEdit()) + { + return segmentp->getStart() + offset; + } + else if (segmentp->getStart() < index && index < segmentp->getEnd()) + { + // bias towards document end + if (increasing_direction) + { + return segmentp->getEnd(); + } + // bias towards document start + else + { + return segmentp->getStart(); + } + } + else + { + return index; + } +} + +void LLTextBase::updateRects() +{ + if (mLineInfoList.empty()) + { + mTextBoundingRect = LLRect(0, mVPad, mHPad, 0); + } + else + { + mTextBoundingRect = mLineInfoList.begin()->mRect; + for (line_list_t::const_iterator line_iter = ++mLineInfoList.begin(); + line_iter != mLineInfoList.end(); + ++line_iter) + { + mTextBoundingRect.unionWith(line_iter->mRect); + } + + mTextBoundingRect.mTop += mVPad; + // subtract a pixel off the bottom to deal with rounding errors in measuring font height + mTextBoundingRect.mBottom -= 1; + + S32 delta_pos = -mTextBoundingRect.mBottom; + // move line segments to fit new document rect + for (line_list_t::iterator it = mLineInfoList.begin(); it != mLineInfoList.end(); ++it) + { + it->mRect.translate(0, delta_pos); + } + mTextBoundingRect.translate(0, delta_pos); + } + + // update document container dimensions according to text contents + LLRect doc_rect = mTextBoundingRect; + // use old mVisibleTextRect constraint document to width of viewable region + doc_rect.mLeft = 0; + + // allow horizontal scrolling? + // if so, use entire width of text contents + // otherwise, stop at width of mVisibleTextRect + doc_rect.mRight = mScroller + ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight) + : mVisibleTextRect.getWidth(); + + mDocumentView->setShape(doc_rect); + + //update mVisibleTextRect *after* mDocumentView has been resized + // so that scrollbars are added if document needs to scroll + // since mVisibleTextRect does not include scrollbars + LLRect old_text_rect = mVisibleTextRect; + mVisibleTextRect = mScroller ? mScroller->getContentWindowRect() : getLocalRect(); + //FIXME: replace border with image? + if (mBorderVisible) + { + mVisibleTextRect.stretch(-1); + } + if (mVisibleTextRect != old_text_rect) + { + needsReflow(); + } + + // update document container again, using new mVisibleTextRect (that has scrollbars enabled as needed) + doc_rect.mRight = mScroller + ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight) + : mVisibleTextRect.getWidth(); + mDocumentView->setShape(doc_rect); +} + + +void LLTextBase::startSelection() +{ + if( !mIsSelecting ) + { + mIsSelecting = TRUE; + mSelectionStart = mCursorPos; + mSelectionEnd = mCursorPos; + } +} + +void LLTextBase::endSelection() +{ + if( mIsSelecting ) + { + mIsSelecting = FALSE; + mSelectionEnd = mCursorPos; + } +} + +// get portion of document that is visible in text editor +LLRect LLTextBase::getVisibleDocumentRect() const +{ + if (mScroller) + { + return mScroller->getVisibleContentRect(); + } + else + { + // entire document rect is visible when not scrolling + // but offset according to height of widget + LLRect doc_rect = mDocumentView->getLocalRect(); + doc_rect.mLeft -= mDocumentView->getRect().mLeft; + // adjust for height of text above widget baseline + doc_rect.mBottom = doc_rect.getHeight() - mVisibleTextRect.getHeight(); + return doc_rect; + } +} + +// +// LLTextSegment +// + +LLTextSegment::~LLTextSegment() +{} + +bool LLTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const { width = 0; height = 0; return false;} +S32 LLTextSegment::getOffset(S32 segment_local_x_coord, S32 start_offset, S32 num_chars, bool round) const { return 0; } +S32 LLTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const { return 0; } +void LLTextSegment::updateLayout(const LLTextBase& editor) {} +F32 LLTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) { return draw_rect.mLeft; } +bool LLTextSegment::canEdit() const { return false; } +void LLTextSegment::unlinkFromDocument(LLTextBase*) {} +void LLTextSegment::linkToDocument(LLTextBase*) {} +const LLColor4& LLTextSegment::getColor() const { return LLColor4::white; } +//void LLTextSegment::setColor(const LLColor4 &color) {} +LLStyleConstSP LLTextSegment::getStyle() const {static LLStyleConstSP sp(new LLStyle()); return sp; } +void LLTextSegment::setStyle(LLStyleConstSP style) {} +void LLTextSegment::setToken( LLKeywordToken* token ) {} +LLKeywordToken* LLTextSegment::getToken() const { return NULL; } +void LLTextSegment::setToolTip( const std::string &msg ) {} +void LLTextSegment::dump() const {} +BOOL LLTextSegment::handleMouseDown(S32 x, S32 y, MASK mask) { return FALSE; } +BOOL LLTextSegment::handleMouseUp(S32 x, S32 y, MASK mask) { return FALSE; } +BOOL LLTextSegment::handleMiddleMouseDown(S32 x, S32 y, MASK mask) { return FALSE; } +BOOL LLTextSegment::handleMiddleMouseUp(S32 x, S32 y, MASK mask) { return FALSE; } +BOOL LLTextSegment::handleRightMouseDown(S32 x, S32 y, MASK mask) { return FALSE; } +BOOL LLTextSegment::handleRightMouseUp(S32 x, S32 y, MASK mask) { return FALSE; } +BOOL LLTextSegment::handleDoubleClick(S32 x, S32 y, MASK mask) { return FALSE; } +BOOL LLTextSegment::handleHover(S32 x, S32 y, MASK mask) { return FALSE; } +BOOL LLTextSegment::handleScrollWheel(S32 x, S32 y, S32 clicks) { return FALSE; } +BOOL LLTextSegment::handleToolTip(S32 x, S32 y, MASK mask) { return FALSE; } +std::string LLTextSegment::getName() const { return ""; } +void LLTextSegment::onMouseCaptureLost() {} +void LLTextSegment::screenPointToLocal(S32 screen_x, S32 screen_y, S32* local_x, S32* local_y) const {} +void LLTextSegment::localPointToScreen(S32 local_x, S32 local_y, S32* screen_x, S32* screen_y) const {} +BOOL LLTextSegment::hasMouseCapture() { return FALSE; } + +// +// LLNormalTextSegment +// + +LLNormalTextSegment::LLNormalTextSegment( LLStyleConstSP style, S32 start, S32 end, LLTextBase& editor ) +: LLTextSegment(start, end), + mStyle( style ), + mToken(NULL), + mEditor(editor) +{ + mFontHeight = llceil(mStyle->getFont()->getLineHeight()); + + LLUIImagePtr image = mStyle->getImage(); + if (image.notNull()) + { + mImageLoadedConnection = image->addLoadedCallback(boost::bind(&LLTextBase::needsReflow, &mEditor, start)); + } +} + +LLNormalTextSegment::LLNormalTextSegment( const LLColor4& color, S32 start, S32 end, LLTextBase& editor, BOOL is_visible) +: LLTextSegment(start, end), + mToken(NULL), + mEditor(editor) +{ + mStyle = new LLStyle(LLStyle::Params().visible(is_visible).color(color)); + + mFontHeight = llceil(mStyle->getFont()->getLineHeight()); +} + +LLNormalTextSegment::~LLNormalTextSegment() +{ + mImageLoadedConnection.disconnect(); +} + + +F32 LLNormalTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) +{ + if( end - start > 0 ) + { + return drawClippedSegment( getStart() + start, getStart() + end, selection_start, selection_end, draw_rect); + } + return draw_rect.mLeft; +} + +// Draws a single text segment, reversing the color for selection if needed. +F32 LLNormalTextSegment::drawClippedSegment(S32 seg_start, S32 seg_end, S32 selection_start, S32 selection_end, LLRect rect) +{ + F32 alpha = LLViewDrawContext::getCurrentContext().mAlpha; + + const LLWString &text = mEditor.getWText(); + + F32 right_x = rect.mLeft; + if (!mStyle->isVisible()) + { + return right_x; + } + + const LLFontGL* font = mStyle->getFont(); + + LLColor4 color = (mEditor.getReadOnly() ? mStyle->getReadOnlyColor() : mStyle->getColor()) % alpha; + + if( selection_start > seg_start ) + { + // Draw normally + S32 start = seg_start; + S32 end = llmin( selection_start, seg_end ); + S32 length = end - start; + font->render(text, start, + rect, + color, + LLFontGL::LEFT, mEditor.mVAlign, + LLFontGL::NORMAL, + mStyle->getShadowType(), + length, + &right_x, + mEditor.getUseEllipses()); + } + rect.mLeft = (S32)ceil(right_x); + + if( (selection_start < seg_end) && (selection_end > seg_start) ) + { + // Draw reversed + S32 start = llmax( selection_start, seg_start ); + S32 end = llmin( selection_end, seg_end ); + S32 length = end - start; + + font->render(text, start, + rect, + LLColor4( 1.f - color.mV[0], 1.f - color.mV[1], 1.f - color.mV[2], 1.f ), + LLFontGL::LEFT, mEditor.mVAlign, + LLFontGL::NORMAL, + LLFontGL::NO_SHADOW, + length, + &right_x, + mEditor.getUseEllipses()); + } + rect.mLeft = (S32)ceil(right_x); + if( selection_end < seg_end ) + { + // Draw normally + S32 start = llmax( selection_end, seg_start ); + S32 end = seg_end; + S32 length = end - start; + font->render(text, start, + rect, + color, + LLFontGL::LEFT, mEditor.mVAlign, + LLFontGL::NORMAL, + mStyle->getShadowType(), + length, + &right_x, + mEditor.getUseEllipses()); + } + return right_x; +} + +BOOL LLNormalTextSegment::handleHover(S32 x, S32 y, MASK mask) +{ + if (getStyle() && getStyle()->isLink()) + { + // Only process the click if it's actually in this segment, not to the right of the end-of-line. + if(mEditor.getSegmentAtLocalPos(x, y, false) == this) + { + LLUI::getWindow()->setCursor(UI_CURSOR_HAND); + return TRUE; + } + } + return FALSE; +} + +BOOL LLNormalTextSegment::handleRightMouseDown(S32 x, S32 y, MASK mask) +{ + if (getStyle() && getStyle()->isLink()) + { + // Only process the click if it's actually in this segment, not to the right of the end-of-line. + if(mEditor.getSegmentAtLocalPos(x, y, false) == this) + { + mEditor.createUrlContextMenu(x, y, getStyle()->getLinkHREF()); + return TRUE; + } + } + return FALSE; +} + +BOOL LLNormalTextSegment::handleMouseDown(S32 x, S32 y, MASK mask) +{ + if (getStyle() && getStyle()->isLink()) + { + // Only process the click if it's actually in this segment, not to the right of the end-of-line. + if(mEditor.getSegmentAtLocalPos(x, y, false) == this) + { + // eat mouse down event on hyperlinks, so we get the mouse up + return TRUE; + } + } + + return FALSE; +} + +BOOL LLNormalTextSegment::handleMouseUp(S32 x, S32 y, MASK mask) +{ + if (getStyle() && getStyle()->isLink()) + { + // Only process the click if it's actually in this segment, not to the right of the end-of-line. + if(mEditor.getSegmentAtLocalPos(x, y, false) == this) + { + LLUrlAction::clickAction(getStyle()->getLinkHREF()); + return TRUE; + } + } + + return FALSE; +} + +BOOL LLNormalTextSegment::handleToolTip(S32 x, S32 y, MASK mask) +{ + std::string msg; + // do we have a tooltip for a loaded keyword (for script editor)? + if (mToken && !mToken->getToolTip().empty()) + { + const LLWString& wmsg = mToken->getToolTip(); + LLToolTipMgr::instance().show(wstring_to_utf8str(wmsg)); + return TRUE; + } + // or do we have an explicitly set tooltip (e.g., for Urls) + if (!mTooltip.empty()) + { + LLToolTipMgr::instance().show(mTooltip); + return TRUE; + } + + return FALSE; +} + +void LLNormalTextSegment::setToolTip(const std::string& tooltip) +{ + // we cannot replace a keyword tooltip that's loaded from a file + if (mToken) + { + llwarns << "LLTextSegment::setToolTip: cannot replace keyword tooltip." << llendl; + return; + } + mTooltip = tooltip; +} + +bool LLNormalTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const +{ + height = 0; + width = 0; + if (num_chars > 0) + { + height = mFontHeight; + const LLWString &text = mEditor.getWText(); + // if last character is a newline, then return true, forcing line break + width = mStyle->getFont()->getWidth(text.c_str(), mStart + first_char, num_chars); + } + return false; +} + +S32 LLNormalTextSegment::getOffset(S32 segment_local_x_coord, S32 start_offset, S32 num_chars, bool round) const +{ + const LLWString &text = mEditor.getWText(); + return mStyle->getFont()->charFromPixelOffset(text.c_str(), mStart + start_offset, + (F32)segment_local_x_coord, + F32_MAX, + num_chars, + round); +} + +S32 LLNormalTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const +{ + const LLWString &text = mEditor.getWText(); + + LLUIImagePtr image = mStyle->getImage(); + if( image.notNull()) + { + num_pixels = llmax(0, num_pixels - image->getWidth()); + } + + S32 last_char = mEnd; + + // set max characters to length of segment, or to first newline + max_chars = llmin(max_chars, last_char - (mStart + segment_offset)); + + // if no character yet displayed on this line, don't require word wrapping since + // we can just move to the next line, otherwise insist on it so we make forward progress + LLFontGL::EWordWrapStyle word_wrap_style = (line_offset == 0) + ? LLFontGL::WORD_BOUNDARY_IF_POSSIBLE + : LLFontGL::ONLY_WORD_BOUNDARIES; + S32 num_chars = mStyle->getFont()->maxDrawableChars(text.c_str() + segment_offset + mStart, + (F32)num_pixels, + max_chars, + word_wrap_style); + + if (num_chars == 0 + && line_offset == 0 + && max_chars > 0) + { + // If at the beginning of a line, and a single character won't fit, draw it anyway + num_chars = 1; + } + + // include *either* the EOF or newline character in this run of text + // but not both + S32 last_char_in_run = mStart + segment_offset + num_chars; + // check length first to avoid indexing off end of string + if (last_char_in_run < mEnd + && (last_char_in_run >= mEditor.getLength() )) + { + num_chars++; + } + return num_chars; +} + +void LLNormalTextSegment::dump() const +{ + llinfos << "Segment [" << +// mColor.mV[VX] << ", " << +// mColor.mV[VY] << ", " << +// mColor.mV[VZ] << "]\t[" << + mStart << ", " << + getEnd() << "]" << + llendl; +} + + +// +// LLInlineViewSegment +// + +LLInlineViewSegment::LLInlineViewSegment(const Params& p, S32 start, S32 end) +: LLTextSegment(start, end), + mView(p.view), + mForceNewLine(p.force_newline), + mLeftPad(p.left_pad), + mRightPad(p.right_pad), + mTopPad(p.top_pad), + mBottomPad(p.bottom_pad) +{ +} + +LLInlineViewSegment::~LLInlineViewSegment() +{ + mView->die(); +} + +bool LLInlineViewSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const +{ + if (first_char == 0 && num_chars == 0) + { + // we didn't fit on a line, the widget will fall on the next line + // so dimensions here are 0 + width = 0; + height = 0; + } + else + { + width = mLeftPad + mRightPad + mView->getRect().getWidth(); + height = mBottomPad + mTopPad + mView->getRect().getHeight(); + } + + return false; +} + +S32 LLInlineViewSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const +{ + // if putting a widget anywhere but at the beginning of a line + // and the widget doesn't fit or mForceNewLine is true + // then return 0 chars for that line, and all characters for the next + if (line_offset != 0 + && (mForceNewLine || num_pixels < mView->getRect().getWidth())) + { + return 0; + } + else + { + return mEnd - mStart; + } +} + +void LLInlineViewSegment::updateLayout(const LLTextBase& editor) +{ + LLRect start_rect = editor.getDocRectFromDocIndex(mStart); + mView->setOrigin(start_rect.mLeft + mLeftPad, start_rect.mBottom + mBottomPad); +} + +F32 LLInlineViewSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) +{ + // return padded width of widget + // widget is actually drawn during mDocumentView's draw() + return (F32)(draw_rect.mLeft + mView->getRect().getWidth() + mLeftPad + mRightPad); +} + +void LLInlineViewSegment::unlinkFromDocument(LLTextBase* editor) +{ + editor->removeDocumentChild(mView); +} + +void LLInlineViewSegment::linkToDocument(LLTextBase* editor) +{ + editor->addDocumentChild(mView); +} + +LLLineBreakTextSegment::LLLineBreakTextSegment(S32 pos):LLTextSegment(pos,pos+1) +{ + LLStyleSP s( new LLStyle(LLStyle::Params().visible(true))); + + mFontHeight = llceil(s->getFont()->getLineHeight()); +} +LLLineBreakTextSegment::LLLineBreakTextSegment(LLStyleConstSP style,S32 pos):LLTextSegment(pos,pos+1) +{ + mFontHeight = llceil(style->getFont()->getLineHeight()); +} +LLLineBreakTextSegment::~LLLineBreakTextSegment() +{ +} +bool LLLineBreakTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const +{ + width = 0; + height = mFontHeight; + + return true; +} +S32 LLLineBreakTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const +{ + return 1; +} +F32 LLLineBreakTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) +{ + return draw_rect.mLeft; +} + +LLImageTextSegment::LLImageTextSegment(LLStyleConstSP style,S32 pos,class LLTextBase& editor) + :LLTextSegment(pos,pos+1) + ,mStyle( style ) + ,mEditor(editor) +{ +} + +LLImageTextSegment::~LLImageTextSegment() +{ +} + +static const S32 IMAGE_HPAD = 3; + +bool LLImageTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const +{ + width = 0; + height = llceil(mStyle->getFont()->getLineHeight());; + + LLUIImagePtr image = mStyle->getImage(); + if( num_chars>0 && image.notNull()) + { + width += image->getWidth() + IMAGE_HPAD; + height = llmax(height, image->getHeight() + IMAGE_HPAD ); + } + return false; +} + +S32 LLImageTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const +{ + LLUIImagePtr image = mStyle->getImage(); + S32 image_width = image->getWidth(); + if(line_offset == 0 || num_pixels>image_width + IMAGE_HPAD) + { + return 1; + } + return 0; +} + +F32 LLImageTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) +{ + if ( (start >= 0) && (end <= mEnd - mStart)) + { + LLColor4 color = LLColor4::white % mEditor.getDrawContext().mAlpha; + LLUIImagePtr image = mStyle->getImage(); + S32 style_image_height = image->getHeight(); + S32 style_image_width = image->getWidth(); + // Text is drawn from the top of the draw_rect downward + + S32 text_center = draw_rect.mTop - (draw_rect.getHeight() / 2); + // Align image to center of draw rect + S32 image_bottom = text_center - (style_image_height / 2); + image->draw(draw_rect.mLeft, image_bottom, + style_image_width, style_image_height, color); + + const S32 IMAGE_HPAD = 3; + return draw_rect.mLeft + style_image_width + IMAGE_HPAD; + } + return 0.0; +} + |