diff options
Diffstat (limited to 'src/quick/items/qquicktextnodeengine.cpp')
| -rw-r--r-- | src/quick/items/qquicktextnodeengine.cpp | 232 |
1 files changed, 153 insertions, 79 deletions
diff --git a/src/quick/items/qquicktextnodeengine.cpp b/src/quick/items/qquicktextnodeengine.cpp index e9ff70e00b..f746fe8b1b 100644 --- a/src/quick/items/qquicktextnodeengine.cpp +++ b/src/quick/items/qquicktextnodeengine.cpp @@ -1,40 +1,32 @@ /**************************************************************************** ** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the QtQuick module of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:LGPL$ +** $QT_BEGIN_LICENSE:LGPL21$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** General Public License version 2.1 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** rights. These rights are described in the Digia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** ** $QT_END_LICENSE$ ** ****************************************************************************/ @@ -49,7 +41,6 @@ #include <QtGui/qtextobject.h> #include <QtGui/qtexttable.h> #include <QtGui/qtextlist.h> -#include <QtQuick/qsgsimplerectnode.h> #include <private/qquicktext_p_p.h> #include <private/qtextdocumentlayout_p.h> @@ -60,7 +51,7 @@ QT_BEGIN_NAMESPACE void QQuickTextNodeEngine::BinaryTreeNode::insert(QVarLengthArray<BinaryTreeNode, 16> *binaryTree, const QGlyphRun &glyphRun, SelectionState selectionState, QQuickTextNode::Decorations decorations, const QColor &textColor, - const QColor &backgroundColor, const QPointF &position) + const QColor &backgroundColor, const QPointF &position, int rangeStart, int rangeEnd) { QRectF searchRect = glyphRun.boundingRect(); searchRect.translate(position); @@ -75,7 +66,7 @@ void QQuickTextNodeEngine::BinaryTreeNode::insert(QVarLengthArray<BinaryTreeNode qreal ascent = glyphRun.rawFont().ascent(); insert(binaryTree, BinaryTreeNode(glyphRun, selectionState, searchRect, decorations, - textColor, backgroundColor, position, ascent)); + textColor, backgroundColor, position, ascent, rangeStart, rangeEnd)); } void QQuickTextNodeEngine::BinaryTreeNode::insert(QVarLengthArray<BinaryTreeNode, 16> *binaryTree, const BinaryTreeNode &binaryTreeNode) @@ -256,12 +247,9 @@ void QQuickTextNodeEngine::processCurrentLine() // selection rect to the graph, and we add decoration every time the // selection state changes, because that means the text color changes if (node == 0 || node->selectionState != currentSelectionState) { - if (node != 0) - currentRect.setRight(node->boundingRect.left()); currentRect.setY(m_position.y() + m_currentLine.y()); currentRect.setHeight(m_currentLine.height()); - // Draw selection all the way up to the left edge of the unselected item if (currentSelectionState == Selected) m_selectionRects.append(currentRect); @@ -297,8 +285,10 @@ void QQuickTextNodeEngine::processCurrentLine() } if (node != 0) { - node->clipNode = currentClipNode; - currentClipNodeUsed = true; + if (node->selectionState == Selected) { + node->clipNode = currentClipNode; + currentClipNodeUsed = true; + } decorationRect = node->boundingRect; @@ -451,17 +441,19 @@ void QQuickTextNodeEngine::addTextObject(const QPointF &position, const QTextCha } } -void QQuickTextNodeEngine::addUnselectedGlyphs(const QGlyphRun &glyphRun) +void QQuickTextNodeEngine::addUnselectedGlyphs(const QGlyphRun &glyphRun, int rangeStart, int rangeEnd) { BinaryTreeNode::insert(&m_currentLineTree, glyphRun, Unselected, - QQuickTextNode::NoDecoration, m_textColor, m_backgroundColor, m_position); + QQuickTextNode::NoDecoration, m_textColor, m_backgroundColor, m_position, + rangeStart, rangeEnd); } -void QQuickTextNodeEngine::addSelectedGlyphs(const QGlyphRun &glyphRun) +void QQuickTextNodeEngine::addSelectedGlyphs(const QGlyphRun &glyphRun, int rangeStart, int rangeEnd) { int currentSize = m_currentLineTree.size(); BinaryTreeNode::insert(&m_currentLineTree, glyphRun, Selected, - QQuickTextNode::NoDecoration, m_textColor, m_backgroundColor, m_position); + QQuickTextNode::NoDecoration, m_textColor, m_backgroundColor, m_position, + rangeStart, rangeEnd); m_hasSelection = m_hasSelection || m_currentLineTree.size() > currentSize; } @@ -534,17 +526,15 @@ void QQuickTextNodeEngine::addGlyphsInRange(int rangeStart, int rangeLength, QList<QGlyphRun> glyphRuns = line.glyphRuns(rangeStart, rangeLength); for (int j=0; j<glyphRuns.size(); ++j) { const QGlyphRun &glyphRun = glyphRuns.at(j); - addUnselectedGlyphs(glyphRun); + addUnselectedGlyphs(glyphRun, rangeStart, rangeEnd - 1); } } else { if (rangeStart < selectionStart) { - QList<QGlyphRun> glyphRuns = line.glyphRuns(rangeStart, - qMin(selectionStart - rangeStart, - rangeLength)); - + int length = qMin(selectionStart - rangeStart, rangeLength); + QList<QGlyphRun> glyphRuns = line.glyphRuns(rangeStart, length); for (int j=0; j<glyphRuns.size(); ++j) { const QGlyphRun &glyphRun = glyphRuns.at(j); - addUnselectedGlyphs(glyphRun); + addUnselectedGlyphs(glyphRun, rangeStart, rangeStart + length - 1); } } @@ -555,15 +545,18 @@ void QQuickTextNodeEngine::addGlyphsInRange(int rangeStart, int rangeLength, for (int j=0; j<glyphRuns.size(); ++j) { const QGlyphRun &glyphRun = glyphRuns.at(j); - addSelectedGlyphs(glyphRun); + addSelectedGlyphs(glyphRun, start, start + length - 1); + addUnselectedGlyphs(glyphRun, start, start + length - 1); } } if (selectionEnd >= rangeStart && selectionEnd < rangeEnd) { - QList<QGlyphRun> glyphRuns = line.glyphRuns(selectionEnd + 1, rangeEnd - selectionEnd - 1); + int start = selectionEnd + 1; + int length = rangeEnd - selectionEnd - 1; + QList<QGlyphRun> glyphRuns = line.glyphRuns(start, length); for (int j=0; j<glyphRuns.size(); ++j) { const QGlyphRun &glyphRun = glyphRuns.at(j); - addUnselectedGlyphs(glyphRun); + addUnselectedGlyphs(glyphRun, start, start + length - 1); } } } @@ -642,37 +635,12 @@ void QQuickTextNodeEngine::addToSceneGraph(QQuickTextNode *parentNode, if (m_currentLine.isValid()) processCurrentLine(); - - for (int i=0; i<m_backgrounds.size(); ++i) { - const QRectF &rect = m_backgrounds.at(i).first; - const QColor &color = m_backgrounds.at(i).second; - - parentNode->appendChildNode(new QSGSimpleRectNode(rect, color)); - } - - // First, prepend all selection rectangles to the tree - for (int i=0; i<m_selectionRects.size(); ++i) { - const QRectF &rect = m_selectionRects.at(i); - - parentNode->appendChildNode(new QSGSimpleRectNode(rect, m_selectionColor)); - } - - // Finally, add decorations for each node to the tree. - for (int i=0; i<m_lines.size(); ++i) { - const TextDecoration &textDecoration = m_lines.at(i); - - QColor color = textDecoration.selectionState == Selected - ? m_selectedTextColor - : textDecoration.color; - - parentNode->appendChildNode(new QSGSimpleRectNode(textDecoration.rect, color)); - } - // Then, go through all the nodes for all lines and combine all QGlyphRuns with a common // font, selection state and clip node. typedef QPair<QFontEngine *, QPair<QQuickDefaultClipNode *, QPair<QRgb, int> > > KeyType; QHash<KeyType, BinaryTreeNode *> map; QList<BinaryTreeNode *> nodes; + QList<BinaryTreeNode *> imageNodes; for (int i = 0; i < m_processedNodes.size(); ++i) { BinaryTreeNode *node = m_processedNodes.data() + i; @@ -705,31 +673,137 @@ void QQuickTextNodeEngine::addToSceneGraph(QQuickTextNode *parentNode, otherGlyphRun.setGlyphIndexes(otherGlyphIndexes); otherGlyphRun.setPositions(otherGlyphPositions); + otherNode->ranges += node->ranges; + } else { map.insert(key, node); nodes.append(node); } } else { - parentNode->addImage(node->boundingRect, node->image); - if (node->selectionState == Selected) { - QColor color = m_selectionColor; - color.setAlpha(128); - parentNode->appendChildNode(new QSGSimpleRectNode(node->boundingRect, color)); - } + imageNodes.append(node); } } - foreach (const BinaryTreeNode *node, nodes) { + for (int i = 0; i < m_backgrounds.size(); ++i) { + const QRectF &rect = m_backgrounds.at(i).first; + const QColor &color = m_backgrounds.at(i).second; + + parentNode->addRectangleNode(rect, color); + } + // Add all unselected text first + for (int i = 0; i < nodes.size(); ++i) { + const BinaryTreeNode *node = nodes.at(i); + if (node->selectionState == Unselected) + parentNode->addGlyphs(node->position, node->glyphRun, node->color, style, styleColor, 0); + } + + for (int i = 0; i < imageNodes.size(); ++i) { + const BinaryTreeNode *node = imageNodes.at(i); + if (node->selectionState == Unselected) + parentNode->addImage(node->boundingRect, node->image); + } + + // Then, prepend all selection rectangles to the tree + for (int i = 0; i < m_selectionRects.size(); ++i) { + const QRectF &rect = m_selectionRects.at(i); + + parentNode->addRectangleNode(rect, m_selectionColor); + } + + // Add decorations for each node to the tree. + for (int i = 0; i < m_lines.size(); ++i) { + const TextDecoration &textDecoration = m_lines.at(i); + + QColor color = textDecoration.selectionState == Selected + ? m_selectedTextColor + : textDecoration.color; + + parentNode->addRectangleNode(textDecoration.rect, color); + } + + // Finally add the selected text on top of everything + for (int i = 0; i < nodes.size(); ++i) { + const BinaryTreeNode *node = nodes.at(i); QQuickDefaultClipNode *clipNode = node->clipNode; - if (clipNode != 0 && clipNode->parent() == 0 ) + if (clipNode != 0 && clipNode->parent() == 0) parentNode->appendChildNode(clipNode); - QColor color = node->selectionState == Selected - ? m_selectedTextColor - : node->color; + if (node->selectionState == Selected) { + QColor color = m_selectedTextColor; + int previousNodeIndex = i - 1; + int nextNodeIndex = i + 1; + const BinaryTreeNode *previousNode = previousNodeIndex < 0 ? 0 : nodes.at(previousNodeIndex); + while (previousNode != 0 && qFuzzyCompare(previousNode->boundingRect.left(), node->boundingRect.left())) + previousNode = --previousNodeIndex < 0 ? 0 : nodes.at(previousNodeIndex); + + const BinaryTreeNode *nextNode = nextNodeIndex == nodes.size() ? 0 : nodes.at(nextNodeIndex); + + if (previousNode != 0 && previousNode->selectionState == Unselected) + parentNode->addGlyphs(previousNode->position, previousNode->glyphRun, color, style, styleColor, clipNode); + + if (nextNode != 0 && nextNode->selectionState == Unselected) + parentNode->addGlyphs(nextNode->position, nextNode->glyphRun, color, style, styleColor, clipNode); + + // If the previous or next node completely overlaps this one, then we have already drawn the glyphs of + // this node + bool drawCurrent = false; + if (previousNode != 0 || nextNode != 0) { + for (int i = 0; i < node->ranges.size(); ++i) { + const QPair<int, int> &range = node->ranges.at(i); + + int rangeLength = range.second - range.first + 1; + if (previousNode != 0) { + for (int j = 0; j < previousNode->ranges.size(); ++j) { + const QPair<int, int> &otherRange = previousNode->ranges.at(j); + if (range.first <= otherRange.second && range.second >= otherRange.first) { + int start = qMax(range.first, otherRange.first); + int end = qMin(range.second, otherRange.second); + rangeLength -= end - start + 1; + if (rangeLength == 0) + break; + } + } + } + + if (nextNode != 0 && rangeLength > 0) { + for (int j = 0; j < nextNode->ranges.size(); ++j) { + const QPair<int, int> &otherRange = nextNode->ranges.at(j); + + if (range.first <= otherRange.second && range.second >= otherRange.first) { + int start = qMax(range.first, otherRange.first); + int end = qMin(range.second, otherRange.second); + rangeLength -= end - start + 1; + if (rangeLength == 0) + break; + } + } + } - parentNode->addGlyphs(node->position, node->glyphRun, color, style, styleColor, clipNode); + if (rangeLength > 0) { + drawCurrent = true; + break; + } + } + } else { + drawCurrent = true; + } + + if (drawCurrent) + parentNode->addGlyphs(node->position, node->glyphRun, color, style, styleColor, clipNode); + } + } + + for (int i = 0; i < imageNodes.size(); ++i) { + const BinaryTreeNode *node = imageNodes.at(i); + if (node->selectionState == Selected) { + parentNode->addImage(node->boundingRect, node->image); + if (node->selectionState == Selected) { + QColor color = m_selectionColor; + color.setAlpha(128); + parentNode->addRectangleNode(node->boundingRect, color); + } + } } } @@ -853,7 +927,7 @@ void QQuickTextNodeEngine::addTextBlock(QTextDocument *textDocument, const QText QList<QGlyphRun> glyphRuns = layout.glyphRuns(); for (int i=0; i<glyphRuns.size(); ++i) - addUnselectedGlyphs(glyphRuns.at(i)); + addUnselectedGlyphs(glyphRuns.at(i), 0, layout.text().length() - 1); } } |