summaryrefslogtreecommitdiffstats
path: root/WebCore/rendering/SVGRootInlineBox.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'WebCore/rendering/SVGRootInlineBox.cpp')
-rw-r--r--WebCore/rendering/SVGRootInlineBox.cpp364
1 files changed, 0 insertions, 364 deletions
diff --git a/WebCore/rendering/SVGRootInlineBox.cpp b/WebCore/rendering/SVGRootInlineBox.cpp
deleted file mode 100644
index 715003f..0000000
--- a/WebCore/rendering/SVGRootInlineBox.cpp
+++ /dev/null
@@ -1,364 +0,0 @@
-/*
- * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
- * (C) 2006 Apple Computer Inc.
- * (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
- * Copyright (C) Research In Motion Limited 2010. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#include "config.h"
-#include "SVGRootInlineBox.h"
-
-#if ENABLE(SVG)
-#include "GraphicsContext.h"
-#include "RenderBlock.h"
-#include "SVGInlineFlowBox.h"
-#include "SVGInlineTextBox.h"
-#include "SVGRenderSupport.h"
-#include "SVGTextLayoutUtilities.h"
-#include "SVGTextPositioningElement.h"
-
-// Text chunk part propagation can be traced by setting this variable > 0.
-#define DEBUG_CHUNK_PART_PROPAGATION 0
-
-namespace WebCore {
-
-void SVGRootInlineBox::paint(PaintInfo& paintInfo, int, int)
-{
- ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
- ASSERT(!paintInfo.context->paintingDisabled());
-
- RenderObject* boxRenderer = renderer();
- ASSERT(boxRenderer);
-
- PaintInfo childPaintInfo(paintInfo);
- childPaintInfo.context->save();
-
- if (SVGRenderSupport::prepareToRenderSVGContent(boxRenderer, childPaintInfo)) {
- for (InlineBox* child = firstChild(); child; child = child->nextOnLine())
- child->paint(childPaintInfo, 0, 0);
- }
-
- SVGRenderSupport::finishRenderSVGContent(boxRenderer, childPaintInfo, paintInfo.context);
- childPaintInfo.context->restore();
-}
-
-void SVGRootInlineBox::computePerCharacterLayoutInformation()
-{
- // Clean up any previous layout information
- m_svgChars.clear();
- m_svgTextChunks.clear();
-
- // Build layout information for all contained render objects
- SVGCharacterLayoutInfo charInfo;
- buildLayoutInformation(this, charInfo);
- m_svgChars = charInfo.svgChars;
-
- // Now all layout information are available for every character
- // contained in any of our child inline/flow boxes. Build list
- // of text chunks now, to be able to apply text-anchor shifts.
- SVGTextChunkLayoutInfo chunkInfo;
- chunkInfo.buildTextChunks(m_svgChars.begin(), m_svgChars.end(), this);
-
- // Layout all text chunks
- // text-anchor needs to be applied to individual chunks.
- chunkInfo.layoutTextChunks();
- m_svgTextChunks = chunkInfo.textChunks();
-
- // Propagate text chunk part information to all SVGInlineTextBoxes, see SVGTextChunkLayoutInfo.h for details
- propagateTextChunkPartInformation();
-
- // Layout all child boxes.
- layoutChildBoxes(this);
-
- // Resize our root box and our RenderSVGText parent block
- layoutRootBox();
-}
-
-void SVGRootInlineBox::buildLayoutInformation(InlineFlowBox* start, SVGCharacterLayoutInfo& info)
-{
- if (start->isRootInlineBox()) {
- ASSERT(start->renderer()->node()->hasTagName(SVGNames::textTag));
-
- SVGTextPositioningElement* positioningElement = static_cast<SVGTextPositioningElement*>(start->renderer()->node());
- ASSERT(positioningElement);
- ASSERT(positioningElement->parentNode());
-
- info.addLayoutInformation(positioningElement);
- }
-
- SVGLastGlyphInfo lastGlyph;
-
- for (InlineBox* curr = start->firstChild(); curr; curr = curr->nextOnLine()) {
- if (curr->renderer()->isText())
- static_cast<SVGInlineTextBox*>(curr)->buildLayoutInformation(info, lastGlyph);
- else {
- ASSERT(curr->isInlineFlowBox());
- InlineFlowBox* flowBox = static_cast<InlineFlowBox*>(curr);
-
- // Skip generated content.
- if (!flowBox->renderer()->node())
- continue;
-
- bool isAnchor = flowBox->renderer()->node()->hasTagName(SVGNames::aTag);
- bool isTextPath = flowBox->renderer()->node()->hasTagName(SVGNames::textPathTag);
-
- if (!isTextPath && !isAnchor) {
- SVGTextPositioningElement* positioningElement = static_cast<SVGTextPositioningElement*>(flowBox->renderer()->node());
- ASSERT(positioningElement);
- ASSERT(positioningElement->parentNode());
-
- info.addLayoutInformation(positioningElement);
- } else if (!isAnchor) {
- info.setInPathLayout(true);
-
- // Handle text-anchor/textLength on path, which is special.
- SVGTextContentElement* textContent = 0;
- Node* node = flowBox->renderer()->node();
- if (node && node->isSVGElement())
- textContent = static_cast<SVGTextContentElement*>(node);
- ASSERT(textContent);
-
- ELengthAdjust lengthAdjust = (ELengthAdjust) textContent->lengthAdjust();
- ETextAnchor anchor = flowBox->renderer()->style()->svgStyle()->textAnchor();
- float textAnchorStartOffset = 0.0f;
-
- // Initialize sub-layout. We need to create text chunks from the textPath
- // children using our standard layout code, to be able to measure the
- // text length using our normal methods and not textPath specific hacks.
- Vector<SVGTextChunk> tempChunks;
-
- SVGCharacterLayoutInfo tempCharInfo;
- buildLayoutInformation(flowBox, tempCharInfo);
-
- SVGTextChunkLayoutInfo tempChunkInfo;
- tempChunkInfo.buildTextChunks(tempCharInfo.svgChars.begin(), tempCharInfo.svgChars.end(), flowBox);
- tempChunks = tempChunkInfo.textChunks();
-
- Vector<SVGTextChunk>::iterator it = tempChunks.begin();
- Vector<SVGTextChunk>::iterator end = tempChunks.end();
-
- float computedLength = 0.0f;
-
- for (; it != end; ++it) {
- SVGTextChunk& chunk = *it;
-
- // Apply text-length calculation
- info.pathExtraAdvance += calculateTextLengthCorrectionForTextChunk(chunk, lengthAdjust, computedLength);
-
- if (lengthAdjust == SVGTextContentElement::LENGTHADJUST_SPACINGANDGLYPHS) {
- info.pathTextLength += computedLength;
- info.pathChunkLength += chunk.textLength;
- }
-
- // Calculate text-anchor start offset
- if (anchor == TA_START)
- continue;
-
- textAnchorStartOffset += calculateTextAnchorShiftForTextChunk(chunk, anchor);
- }
-
- info.addLayoutInformation(flowBox, textAnchorStartOffset);
- }
-
- float shiftxSaved = info.shiftx;
- float shiftySaved = info.shifty;
-
- buildLayoutInformation(flowBox, info);
- info.processedChunk(shiftxSaved, shiftySaved);
-
- if (isTextPath)
- info.setInPathLayout(false);
- }
- }
-}
-
-void SVGRootInlineBox::layoutChildBoxes(InlineFlowBox* start)
-{
- for (InlineBox* child = start->firstChild(); child; child = child->nextOnLine()) {
- if (child->renderer()->isText()) {
- SVGInlineTextBox* textBox = static_cast<SVGInlineTextBox*>(child);
- IntRect boxRect = textBox->calculateBoundaries();
- textBox->setX(boxRect.x());
- textBox->setY(boxRect.y());
- textBox->setLogicalWidth(boxRect.width());
- textBox->setLogicalHeight(boxRect.height());
- } else {
- ASSERT(child->isInlineFlowBox());
-
- // Skip generated content.
- if (!child->renderer()->node())
- continue;
-
- SVGInlineFlowBox* flowBox = static_cast<SVGInlineFlowBox*>(child);
- layoutChildBoxes(flowBox);
-
- IntRect boxRect = flowBox->calculateBoundaries();
- flowBox->setX(boxRect.x());
- flowBox->setY(boxRect.y());
- flowBox->setLogicalWidth(boxRect.width());
- flowBox->setLogicalHeight(boxRect.height());
- }
- }
-}
-
-void SVGRootInlineBox::layoutRootBox()
-{
- RenderBlock* parentBlock = block();
- ASSERT(parentBlock);
-
- IntRect childRect;
- for (InlineBox* child = firstChild(); child; child = child->nextOnLine()) {
- // Skip generated content.
- if (!child->renderer()->node())
- continue;
- childRect.unite(child->calculateBoundaries());
- }
-
- int xBlock = childRect.x();
- int yBlock = childRect.y();
- int widthBlock = childRect.width();
- int heightBlock = childRect.height();
-
- // Finally, assign the root block position, now that all content is laid out.
- parentBlock->setLocation(xBlock, yBlock);
- parentBlock->setWidth(widthBlock);
- parentBlock->setHeight(heightBlock);
-
- // Position all children relative to the parent block.
- for (InlineBox* child = firstChild(); child; child = child->nextOnLine()) {
- // Skip generated content.
- if (!child->renderer()->node())
- continue;
- child->adjustPosition(-xBlock, -yBlock);
- }
-
- // Position ourselves.
- setX(0);
- setY(0);
- setLogicalWidth(widthBlock);
- setLogicalHeight(heightBlock);
- setBlockHeight(heightBlock);
- setLineTopBottomPositions(0, heightBlock);
-}
-
-void SVGRootInlineBox::propagateTextChunkPartInformation()
-{
-#if DEBUG_CHUNK_PART_PROPAGATION > 0
- ListHashSet<SVGInlineTextBox*> boxes;
-#endif
-
- // Loop through all text chunks
- const Vector<SVGTextChunk>::const_iterator end = m_svgTextChunks.end();
- for (Vector<SVGTextChunk>::const_iterator it = m_svgTextChunks.begin(); it != end; ++it) {
- const SVGTextChunk& chunk = *it;
- int processedChunkCharacters = 0;
-
- // Loop through all ranges contained in this chunk
- const Vector<SVGInlineBoxCharacterRange>::const_iterator boxEnd = chunk.boxes.end();
- for (Vector<SVGInlineBoxCharacterRange>::const_iterator boxIt = chunk.boxes.begin(); boxIt != boxEnd; ++boxIt) {
- const SVGInlineBoxCharacterRange& range = *boxIt;
- ASSERT(range.box->isSVGInlineTextBox());
-
- // Access style & font information of this text box
- SVGInlineTextBox* rangeTextBox = static_cast<SVGInlineTextBox*>(range.box);
- rangeTextBox->setChunkTransformation(chunk.ctm);
-
- RenderText* text = rangeTextBox->textRenderer();
- ASSERT(text);
-
- RenderStyle* style = text->style();
- ASSERT(style);
-
- const Font& font = style->font();
-
- // Figure out first and last character of this range in this chunk
- int rangeLength = range.endOffset - range.startOffset;
- Vector<SVGChar>::iterator itCharBegin = chunk.start + processedChunkCharacters;
- Vector<SVGChar>::iterator itCharEnd = chunk.start + processedChunkCharacters + rangeLength;
- ASSERT(itCharEnd <= chunk.end);
-
- // Loop through all characters in range
- int processedRangeCharacters = 0;
- for (Vector<SVGChar>::iterator itChar = itCharBegin; itChar != itCharEnd; ++itChar) {
- if (itChar->isHidden()) {
- ++processedRangeCharacters;
- continue;
- }
-
- // Determine how many characters - starting from the current - can be drawn at once.
- Vector<SVGChar>::iterator itSearch = itChar + 1;
- while (itSearch != itCharEnd) {
- if (itSearch->drawnSeperated || itSearch->isHidden())
- break;
-
- ++itSearch;
- }
-
- // Calculate text chunk part information for this chunk sub-range
- const UChar* partStart = text->characters() + rangeTextBox->start() + range.startOffset + processedRangeCharacters;
-
- SVGTextChunkPart part;
- part.firstCharacter = itChar;
- part.length = itSearch - itChar;
- part.width = font.floatWidth(svgTextRunForInlineTextBox(partStart, part.length, style, rangeTextBox));
- part.height = font.height();
- part.offset = range.startOffset + processedRangeCharacters;
- rangeTextBox->addChunkPartInformation(part);
- processedRangeCharacters += part.length;
-
- // Skip processed characters
- itChar = itSearch - 1;
- }
-
- ASSERT(processedRangeCharacters == rangeLength);
- processedChunkCharacters += rangeLength;
-
-#if DEBUG_CHUNK_PART_PROPAGATION > 0
- boxes.add(rangeTextBox);
-#endif
- }
- }
-
-#if DEBUG_CHUNK_PART_PROPAGATION > 0
- {
- fprintf(stderr, "Propagated text chunk part information:\n");
-
- ListHashSet<SVGInlineTextBox*>::const_iterator it = boxes.begin();
- const ListHashSet<SVGInlineTextBox*>::const_iterator end = boxes.end();
-
- for (; it != end; ++it) {
- const SVGInlineTextBox* box = *it;
- const Vector<SVGTextChunkPart>& parts = box->svgTextChunkParts();
-
- fprintf(stderr, " Box %p contains %i text chunk parts:\n", box, static_cast<int>(parts.size()));
- Vector<SVGTextChunkPart>::const_iterator partIt = parts.begin();
- const Vector<SVGTextChunkPart>::const_iterator partEnd = parts.end();
- for (; partIt != partEnd; ++partIt) {
- const SVGTextChunkPart& part = *partIt;
- fprintf(stderr, " -> firstCharacter x=%lf, y=%lf, offset=%i, length=%i, width=%lf, height=%lf, textRenderer=%p\n"
- , part.firstCharacter->x, part.firstCharacter->y, part.offset, part.length, part.width, part.height, box->textRenderer());
- }
- }
- }
-#endif
-}
-
-} // namespace WebCore
-
-#endif // ENABLE(SVG)
generated by cgit v1.1 at 2025-08-16 06:26:54 +0000