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-rw-r--r--src/quick/items/qquicktextnode.cpp299
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diff --git a/src/quick/items/qquicktextnode.cpp b/src/quick/items/qquicktextnode.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtQuick module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** 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 The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qquicktextnode_p.h"
-
-#include "qquicktextnodeengine_p.h"
-
-#include <private/qsgadaptationlayer_p.h>
-#include <private/qsgdistancefieldglyphnode_p.h>
-#include <private/qquickclipnode_p.h>
-#include <private/qquickitem_p.h>
-#include <QtQuick/private/qsgcontext_p.h>
-
-#include <QtCore/qpoint.h>
-#include <qtextdocument.h>
-#include <qtextlayout.h>
-#include <qabstracttextdocumentlayout.h>
-#include <qxmlstream.h>
-#include <private/qquickstyledtext_p.h>
-#include <private/qfont_p.h>
-#include <private/qfontengine_p.h>
-
-#include <private/qtextdocumentlayout_p.h>
-#include <qhash.h>
-
-QT_BEGIN_NAMESPACE
-
-namespace {
-
- class ProtectedLayoutAccessor: public QAbstractTextDocumentLayout
- {
- public:
- inline QTextCharFormat formatAccessor(int pos)
- {
- return format(pos);
- }
- };
-
-}
-
-/*!
- Creates an empty QQuickTextNode
-*/
-QQuickTextNode::QQuickTextNode(QQuickItem *ownerElement)
- : m_cursorNode(nullptr), m_ownerElement(ownerElement), m_useNativeRenderer(false), m_renderTypeQuality(-1)
-{
-#ifdef QSG_RUNTIME_DESCRIPTION
- qsgnode_set_description(this, QLatin1String("text"));
-#endif
-}
-
-QQuickTextNode::~QQuickTextNode()
-{
- qDeleteAll(m_textures);
-}
-
-QSGGlyphNode *QQuickTextNode::addGlyphs(const QPointF &position, const QGlyphRun &glyphs, const QColor &color,
- QQuickText::TextStyle style, const QColor &styleColor,
- QSGNode *parentNode)
-{
- QSGRenderContext *sg = QQuickItemPrivate::get(m_ownerElement)->sceneGraphRenderContext();
- QRawFont font = glyphs.rawFont();
- bool preferNativeGlyphNode = m_useNativeRenderer;
- if (!preferNativeGlyphNode) {
- QRawFontPrivate *fontPriv = QRawFontPrivate::get(font);
- if (fontPriv->fontEngine->hasUnreliableGlyphOutline()) {
- preferNativeGlyphNode = true;
- } else {
- QFontEngine *fe = QRawFontPrivate::get(font)->fontEngine;
- preferNativeGlyphNode = !fe->isSmoothlyScalable;
- }
- }
-
- QSGGlyphNode *node = sg->sceneGraphContext()->createGlyphNode(sg, preferNativeGlyphNode, m_renderTypeQuality);
-
- node->setOwnerElement(m_ownerElement);
- node->setGlyphs(position + QPointF(0, glyphs.rawFont().ascent()), glyphs);
- node->setStyle(style);
- node->setStyleColor(styleColor);
- node->setColor(color);
- node->update();
-
- /* We flag the geometry as static, but we never call markVertexDataDirty
- or markIndexDataDirty on them. This is because all text nodes are
- discarded when a change occurs. If we start appending/removing from
- existing geometry, then we also need to start marking the geometry as
- dirty.
- */
- node->geometry()->setIndexDataPattern(QSGGeometry::StaticPattern);
- node->geometry()->setVertexDataPattern(QSGGeometry::StaticPattern);
-
- if (parentNode == nullptr)
- parentNode = this;
- parentNode->appendChildNode(node);
-
- if (style == QQuickText::Outline && color.alpha() > 0 && styleColor != color) {
- QSGGlyphNode *fillNode = sg->sceneGraphContext()->createGlyphNode(sg, preferNativeGlyphNode, m_renderTypeQuality);
- fillNode->setOwnerElement(m_ownerElement);
- fillNode->setGlyphs(position + QPointF(0, glyphs.rawFont().ascent()), glyphs);
- fillNode->setStyle(QQuickText::Normal);
- fillNode->setPreferredAntialiasingMode(QSGGlyphNode::GrayAntialiasing);
- fillNode->setColor(color);
- fillNode->update();
-
- fillNode->geometry()->setIndexDataPattern(QSGGeometry::StaticPattern);
- fillNode->geometry()->setVertexDataPattern(QSGGeometry::StaticPattern);
-
- parentNode->appendChildNode(fillNode);
- fillNode->setRenderOrder(node->renderOrder() + 1);
- }
-
- return node;
-}
-
-void QQuickTextNode::setCursor(const QRectF &rect, const QColor &color)
-{
- if (m_cursorNode != nullptr)
- delete m_cursorNode;
-
- QSGRenderContext *sg = QQuickItemPrivate::get(m_ownerElement)->sceneGraphRenderContext();
- m_cursorNode = sg->sceneGraphContext()->createInternalRectangleNode(rect, color);
- appendChildNode(m_cursorNode);
-}
-
-void QQuickTextNode::clearCursor()
-{
- if (m_cursorNode)
- removeChildNode(m_cursorNode);
- delete m_cursorNode;
- m_cursorNode = nullptr;
-}
-
-void QQuickTextNode::addRectangleNode(const QRectF &rect, const QColor &color)
-{
- QSGRenderContext *sg = QQuickItemPrivate::get(m_ownerElement)->sceneGraphRenderContext();
- appendChildNode(sg->sceneGraphContext()->createInternalRectangleNode(rect, color));
-}
-
-
-void QQuickTextNode::addImage(const QRectF &rect, const QImage &image)
-{
- QSGRenderContext *sg = QQuickItemPrivate::get(m_ownerElement)->sceneGraphRenderContext();
- QSGInternalImageNode *node = sg->sceneGraphContext()->createInternalImageNode(sg);
- QSGTexture *texture = sg->createTexture(image);
- if (m_ownerElement->smooth())
- texture->setFiltering(QSGTexture::Linear);
- m_textures.append(texture);
- node->setTargetRect(rect);
- node->setInnerTargetRect(rect);
- node->setTexture(texture);
- if (m_ownerElement->smooth())
- node->setFiltering(QSGTexture::Linear);
- appendChildNode(node);
- node->update();
-}
-
-void QQuickTextNode::addTextDocument(const QPointF &position, QTextDocument *textDocument,
- const QColor &textColor,
- QQuickText::TextStyle style, const QColor &styleColor,
- const QColor &anchorColor,
- const QColor &selectionColor, const QColor &selectedTextColor,
- int selectionStart, int selectionEnd)
-{
- QQuickTextNodeEngine engine;
- engine.setTextColor(textColor);
- engine.setSelectedTextColor(selectedTextColor);
- engine.setSelectionColor(selectionColor);
- engine.setAnchorColor(anchorColor);
- engine.setPosition(position);
-
- QList<QTextFrame *> frames;
- frames.append(textDocument->rootFrame());
- while (!frames.isEmpty()) {
- QTextFrame *textFrame = frames.takeFirst();
- frames.append(textFrame->childFrames());
-
- engine.addFrameDecorations(textDocument, textFrame);
-
- if (textFrame->firstPosition() > textFrame->lastPosition()
- && textFrame->frameFormat().position() != QTextFrameFormat::InFlow) {
- const int pos = textFrame->firstPosition() - 1;
- ProtectedLayoutAccessor *a = static_cast<ProtectedLayoutAccessor *>(textDocument->documentLayout());
- QTextCharFormat format = a->formatAccessor(pos);
- QRectF rect = a->frameBoundingRect(textFrame);
-
- QTextBlock block = textFrame->firstCursorPosition().block();
- engine.setCurrentLine(block.layout()->lineForTextPosition(pos - block.position()));
- engine.addTextObject(block, rect.topLeft(), format, QQuickTextNodeEngine::Unselected, textDocument,
- pos, textFrame->frameFormat().position());
- } else {
- QTextFrame::iterator it = textFrame->begin();
-
- while (!it.atEnd()) {
- Q_ASSERT(!engine.currentLine().isValid());
-
- QTextBlock block = it.currentBlock();
- engine.addTextBlock(textDocument, block, position, textColor, anchorColor, selectionStart, selectionEnd);
- ++it;
- }
- }
- }
-
- engine.addToSceneGraph(this, style, styleColor);
-}
-
-void QQuickTextNode::addTextLayout(const QPointF &position, QTextLayout *textLayout, const QColor &color,
- QQuickText::TextStyle style, const QColor &styleColor,
- const QColor &anchorColor,
- const QColor &selectionColor, const QColor &selectedTextColor,
- int selectionStart, int selectionEnd,
- int lineStart, int lineCount)
-{
- QQuickTextNodeEngine engine;
- engine.setTextColor(color);
- engine.setSelectedTextColor(selectedTextColor);
- engine.setSelectionColor(selectionColor);
- engine.setAnchorColor(anchorColor);
- engine.setPosition(position);
-
-#if QT_CONFIG(im)
- int preeditLength = textLayout->preeditAreaText().length();
- int preeditPosition = textLayout->preeditAreaPosition();
-#endif
-
- QVarLengthArray<QTextLayout::FormatRange> colorChanges;
- engine.mergeFormats(textLayout, &colorChanges);
-
- lineCount = lineCount >= 0
- ? qMin(lineStart + lineCount, textLayout->lineCount())
- : textLayout->lineCount();
-
- for (int i=lineStart; i<lineCount; ++i) {
- QTextLine line = textLayout->lineAt(i);
-
- int start = line.textStart();
- int length = line.textLength();
- int end = start + length;
-
-#if QT_CONFIG(im)
- if (preeditPosition >= 0
- && preeditPosition >= start
- && preeditPosition < end) {
- end += preeditLength;
- }
-#endif
-
- engine.setCurrentLine(line);
- engine.addGlyphsForRanges(colorChanges, start, end, selectionStart, selectionEnd);
- }
-
- engine.addToSceneGraph(this, style, styleColor);
-}
-
-void QQuickTextNode::deleteContent()
-{
- while (firstChild() != nullptr)
- delete firstChild();
- m_cursorNode = nullptr;
- qDeleteAll(m_textures);
- m_textures.clear();
-}
-
-QT_END_NAMESPACE