void setUnicodeText(const QString &text, const QFont &font, const QColor &color)
{
deleteContent();
QRawFont raw_font = QRawFont::fromFont(font, QFontDatabase::Latin);
qreal line_width = raw_font.averageCharWidth() * text.size();
QSGRenderContext *sgr = QQuickItemPrivate::get(m_owner)->sceneGraphRenderContext();
QTextLayout layout(text,font);
layout.beginLayout();
QTextLine line = layout.createLine();
line.setLineWidth(line_width);
//Q_ASSERT(!layout.createLine().isValid());
layout.endLayout();
QList<QGlyphRun> glyphRuns = line.glyphRuns();
qreal xpos = 0;
for (int i = 0; i < glyphRuns.size(); i++) {
QSGGlyphNode *node = sgr->sceneGraphContext()->createGlyphNode(sgr, false);
node->setOwnerElement(m_owner);
node->geometry()->setIndexDataPattern(QSGGeometry::StaticPattern);
node->geometry()->setVertexDataPattern(QSGGeometry::StaticPattern);
node->setGlyphs(QPointF(xpos, raw_font.ascent()), glyphRuns.at(i));
node->setStyle(QQuickText::Normal);
node->setColor(color);
xpos += raw_font.averageCharWidth() * glyphRuns.at(i).positions().size();
node->update();
appendChildNode(node);
}
}
void QQuickTextNode::setColor(const QColor &color)
{
if (m_usePixmapCache) {
setUpdateFlag(UpdateNodes);
} else {
for (QSGNode *childNode = firstChild(); childNode; childNode = childNode->nextSibling()) {
if (childNode->subType() == GlyphNodeSubType) {
QSGGlyphNode *glyphNode = static_cast<QSGGlyphNode *>(childNode);
if (glyphNode->color() == m_color)
glyphNode->setColor(color);
} else if (childNode->subType() == SolidRectNodeSubType) {
QSGSimpleRectNode *solidRectNode = static_cast<QSGSimpleRectNode *>(childNode);
if (solidRectNode->color() == m_color)
solidRectNode->setColor(color);
}
}
}
m_color = color;
}
void QSGTextNode::addTextBlock(const QPointF &position, QTextDocument *textDocument, const QTextBlock &block,
const QColor &overrideColor, QSGText::TextStyle style, const QColor &styleColor)
{
if (!block.isValid())
return;
QPointF blockPosition = textDocument->documentLayout()->blockBoundingRect(block).topLeft();
QTextBlock::iterator it = block.begin();
while (!it.atEnd()) {
QTextFragment fragment = it.fragment();
if (!fragment.text().isEmpty()) {
QTextCharFormat charFormat = fragment.charFormat();
QColor color = overrideColor.isValid()
? overrideColor
: charFormat.foreground().color();
QList<QGlyphRun> glyphsList = fragment.glyphRuns();
for (int i=0; i<glyphsList.size(); ++i) {
QGlyphRun glyphs = glyphsList.at(i);
QRawFont font = glyphs.rawFont();
QSGGlyphNode *glyphNode = addGlyphs(position + blockPosition + QPointF(0, font.ascent()),
glyphs, color, style, styleColor);
int decorations = (glyphs.overline() ? Overline : 0) |
(glyphs.strikeOut() ? StrikeOut : 0) |
(glyphs.underline() ? Underline : 0);
if (decorations) {
QPointF baseLine = glyphNode->baseLine();
qreal width = glyphNode->boundingRect().width();
addTextDecorations(Decoration(decorations), baseLine, color, width,
font.lineThickness(), font.underlinePosition(), font.ascent());
}
}
}
++it;
}
}
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);
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 == 0)
parentNode = this;
parentNode->appendChildNode(node);
return node;
}
void setLatinText(const QString &text, const QFont &font, const QColor &color) {
QRawFont raw_font = QRawFont::fromFont(font, QFontDatabase::Latin);
if (raw_font != m_raw_font) {
m_raw_font = raw_font;
m_positions.clear();
}
if (m_positions.size() < text.size()) {
qreal x_pos = 0;
qreal max_char_width = raw_font.averageCharWidth();
qreal ascent = raw_font.ascent();
if (m_positions.size())
x_pos = m_positions.last().x() + max_char_width;
int to_add = text.size() - m_positions.size();
for (int i = 0; i < to_add; i++) {
m_positions << QPointF(x_pos, ascent);
x_pos += max_char_width;
}
}
deleteContent();
QSGRenderContext *sgr = QQuickItemPrivate::get(m_owner)->sceneGraphRenderContext();
QSGGlyphNode *node = sgr->sceneGraphContext()->createGlyphNode(sgr, false);
node->setOwnerElement(m_owner);
node->geometry()->setIndexDataPattern(QSGGeometry::StaticPattern);
node->geometry()->setVertexDataPattern(QSGGeometry::StaticPattern);
node->setStyle(QQuickText::Normal);
node->setColor(color);
QGlyphRun glyphrun;
glyphrun.setRawFont(raw_font);
glyphrun.setGlyphIndexes(raw_font.glyphIndexesForString(text));
glyphrun.setPositions(m_positions);
node->setGlyphs(QPointF(0, raw_font.ascent()), glyphrun);
node->update();
appendChildNode(node);
}
QSGGlyphNode *QSGTextNode::addGlyphs(const QPointF &position, const QGlyphRun &glyphs, const QColor &color,
QSGText::TextStyle style, const QColor &styleColor, QSGGlyphNode *prevNode)
{
QSGGlyphNode *node = prevNode;
if (!node)
node = m_context->createGlyphNode();
node->setGlyphs(position, glyphs);
if (node != prevNode) {
node->setStyle(style);
node->setStyleColor(styleColor);
node->setColor(color);
}
node->update();
if (node != prevNode)
appendChildNode(node);
return node;
}
