Merge in downstream viewer-tiger

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);
+		}
+	}
+}