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Diffstat (limited to 'indra/newview/llscripteditor.cpp')
| -rw-r--r-- | indra/newview/llscripteditor.cpp | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/indra/newview/llscripteditor.cpp b/indra/newview/llscripteditor.cpp new file mode 100644 index 0000000000..81920562a7 --- /dev/null +++ b/indra/newview/llscripteditor.cpp @@ -0,0 +1,289 @@ +/** + * @file llscripteditor.cpp + * @author Cinder Roxley + * @brief Text editor widget used for viewing and editing scripts + * + * $LicenseInfo:firstyear=2001&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2012, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "llviewerprecompiledheaders.h" +#include "llscripteditor.h" + +#include "llsyntaxid.h" +#include "lllocalcliprect.h" + +const S32 UI_TEXTEDITOR_LINE_NUMBER_MARGIN = 32; +const S32 UI_TEXTEDITOR_LINE_NUMBER_DIGITS = 4; + +static LLDefaultChildRegistry::Register<LLScriptEditor> r("script_editor"); + +LLScriptEditor::Params::Params() +: show_line_numbers("show_line_numbers", true) +{} + + +LLScriptEditor::LLScriptEditor(const Params& p) +: LLTextEditor(p) +, mShowLineNumbers(p.show_line_numbers) +{ + if (mShowLineNumbers) + { + mHPad += UI_TEXTEDITOR_LINE_NUMBER_MARGIN; + updateRects(); + } +} + +void LLScriptEditor::draw() +{ + { + // pad clipping rectangle so that cursor can draw at full width + // when at left edge of mVisibleTextRect + LLRect clip_rect(mVisibleTextRect); + clip_rect.stretch(1); + LLLocalClipRect clip(clip_rect); + } + + LLTextBase::draw(); + drawLineNumbers(); + + drawPreeditMarker(); + + //RN: the decision was made to always show the orange border for keyboard focus but do not put an insertion caret + // when in readonly mode + mBorder->setKeyboardFocusHighlight( hasFocus() );// && !mReadOnly); +} + +void LLScriptEditor::drawLineNumbers() +{ + LLGLSUIDefault gls_ui; + LLRect scrolled_view_rect = getVisibleDocumentRect(); + LLRect content_rect = getVisibleTextRect(); + LLLocalClipRect clip(content_rect); + S32 first_line = getFirstVisibleLine(); + S32 num_lines = getLineCount(); + if (first_line >= num_lines) + { + return; + } + + S32 cursor_line = mLineInfoList[getLineNumFromDocIndex(mCursorPos)].mLineNum; + + if (mShowLineNumbers) + { + S32 left = 0; + S32 top = getRect().getHeight(); + S32 bottom = 0; + + gl_rect_2d(left, top, UI_TEXTEDITOR_LINE_NUMBER_MARGIN, bottom, mReadOnlyBgColor.get() ); // line number area always read-only + gl_rect_2d(UI_TEXTEDITOR_LINE_NUMBER_MARGIN, top, UI_TEXTEDITOR_LINE_NUMBER_MARGIN-1, bottom, LLColor4::grey3); // separator + + S32 last_line_num = -1; + + for (S32 cur_line = first_line; cur_line < num_lines; cur_line++) + { + line_info& line = mLineInfoList[cur_line]; + + if ((line.mRect.mTop - scrolled_view_rect.mBottom) < mVisibleTextRect.mBottom) + { + break; + } + + S32 line_bottom = line.mRect.mBottom - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom; + // draw the line numbers + if(line.mLineNum != last_line_num && line.mRect.mTop <= scrolled_view_rect.mTop) + { + const LLFontGL *num_font = LLFontGL::getFontMonospace(); + const LLWString ltext = utf8str_to_wstring(llformat("%d", line.mLineNum )); + BOOL is_cur_line = cursor_line == line.mLineNum; + const U8 style = is_cur_line ? LLFontGL::BOLD : LLFontGL::NORMAL; + const LLColor4 fg_color = is_cur_line ? mCursorColor : mReadOnlyFgColor; + num_font->render( + ltext, // string to draw + 0, // begin offset + UI_TEXTEDITOR_LINE_NUMBER_MARGIN - 2, // x + line_bottom, // y + fg_color, + LLFontGL::RIGHT, // horizontal alignment + LLFontGL::BOTTOM, // vertical alignment + style, + LLFontGL::NO_SHADOW, + S32_MAX, // max chars + UI_TEXTEDITOR_LINE_NUMBER_MARGIN - 2); // max pixels + last_line_num = line.mLineNum; + } + } + } +} + +void LLScriptEditor::initKeywords() +{ + mKeywords.initialize(LLSyntaxIdLSL::getInstance()->getKeywordsXML()); +} + +LLTrace::BlockTimerStatHandle FTM_SYNTAX_HIGHLIGHTING("Syntax Highlighting"); + +void LLScriptEditor::loadKeywords() +{ + LL_RECORD_BLOCK_TIME(FTM_SYNTAX_HIGHLIGHTING); + mKeywords.processTokens(); + + segment_vec_t segment_list; + mKeywords.findSegments(&segment_list, getWText(), mDefaultColor.get(), *this); + + mSegments.clear(); + segment_set_t::iterator insert_it = mSegments.begin(); + for (segment_vec_t::iterator list_it = segment_list.begin(); list_it != segment_list.end(); ++list_it) + { + insert_it = mSegments.insert(insert_it, *list_it); + } +} + +void LLScriptEditor::updateSegments() +{ + if (mReflowIndex < S32_MAX && mKeywords.isLoaded() && mParseOnTheFly) + { + LL_RECORD_BLOCK_TIME(FTM_SYNTAX_HIGHLIGHTING); + // HACK: No non-ascii keywords for now + segment_vec_t segment_list; + mKeywords.findSegments(&segment_list, getWText(), mDefaultColor.get(), *this); + + clearSegments(); + for (segment_vec_t::iterator list_it = segment_list.begin(); list_it != segment_list.end(); ++list_it) + { + insertSegment(*list_it); + } + } + + LLTextBase::updateSegments(); +} + +void LLScriptEditor::clearSegments() +{ + if (!mSegments.empty()) + { + mSegments.clear(); + } +} + +// Most of this is shamelessly copied from LLTextBase +void LLScriptEditor::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 ); + + // 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, LLTextBase::compare_bottom()); + line_list_t::const_iterator end_iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, LLTextBase::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); + } + } + + gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); + const LLColor4& color = mReadOnly ? mReadOnlyFgColor : mFgColor; + F32 alpha = hasFocus() ? 0.7f : 0.3f; + alpha *= getDrawContext().mAlpha; + // We want to shift the color to something readable but distinct + LLColor4 selection_color((1.f + color.mV[VRED]) * 0.5f, + (1.f + color.mV[VGREEN]) * 0.5f, + (1.f + color.mV[VBLUE]) * 0.5f, + 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 = *rect_it; + selection_rect.translate(mVisibleTextRect.mLeft - content_display_rect.mLeft, mVisibleTextRect.mBottom - content_display_rect.mBottom); + gl_rect_2d(selection_rect, selection_color); + } + } +} |