void QSvgTinyDocument::draw(QPainter *p, const QRectF &bounds)
{
if (m_time.isNull()) {
m_time.start();
}
if (m_viewBox.isNull()) {
QMatrix matx = QMatrix();
m_viewBox = transformedBounds(matx);
}
p->save();
//sets default style on the painter
//### not the most optimal way
adjustWindowBounds(p, bounds, m_viewBox);
p->setPen(Qt::NoPen);
p->setBrush(Qt::black);
p->setRenderHint(QPainter::Antialiasing);
p->setRenderHint(QPainter::SmoothPixmapTransform);
QList<QSvgNode*>::iterator itr = m_renderers.begin();
applyStyle(p);
while (itr != m_renderers.end()) {
QSvgNode *node = *itr;
if (node->isVisible())
node->draw(p);
++itr;
}
revertStyle(p);
p->restore();
}
void QSvgPath::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
m_path.setFillRule(states.fillRule);
QT_SVG_DRAW_SHAPE(p->drawPath(m_path));
revertStyle(p, states);
}
QRectF QSvgNode::transformedBounds(QPainter *p, QSvgExtraStates &states) const
{
applyStyle(p, states);
QRectF rect = bounds(p, states);
revertStyle(p, states);
return rect;
}
void QSvgTinyDocument::draw(QPainter *p, const QRectF &bounds)
{
if (m_time.isNull()) {
m_time.start();
}
if (displayMode() == QSvgNode::NoneMode)
return;
p->save();
//sets default style on the painter
//### not the most optimal way
mapSourceToTarget(p, bounds);
QPen pen(Qt::NoBrush, 1, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
pen.setMiterLimit(4);
p->setPen(pen);
p->setBrush(Qt::black);
p->setRenderHint(QPainter::Antialiasing);
p->setRenderHint(QPainter::SmoothPixmapTransform);
QList<QSvgNode*>::iterator itr = m_renderers.begin();
applyStyle(p, m_states);
while (itr != m_renderers.end()) {
QSvgNode *node = *itr;
if ((node->isVisible()) && (node->displayMode() != QSvgNode::NoneMode))
node->draw(p, m_states);
++itr;
}
revertStyle(p, m_states);
p->restore();
}
void QSvgRect::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
if (m_rx || m_ry) {
QT_SVG_DRAW_SHAPE(p->drawRoundedRect(m_rect, m_rx, m_ry, Qt::RelativeSize));
} else {
QT_SVG_DRAW_SHAPE(p->drawRect(m_rect));
}
revertStyle(p, states);
}
void QSvgLine::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
if (p->pen().widthF() != 0) {
qreal oldOpacity = p->opacity();
p->setOpacity(oldOpacity * states.strokeOpacity);
p->drawLine(m_line);
p->setOpacity(oldOpacity);
}
revertStyle(p, states);
}
void QSvgPolyline::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
if (p->brush().style() != Qt::NoBrush) {
QPen save = p->pen();
p->setPen(QPen(Qt::NoPen));
p->drawPolygon(m_poly);
p->setPen(save);
}
p->drawPolyline(m_poly);
revertStyle(p, states);
}
void QSvgG::draw(QPainter *p, QSvgExtraStates &states)
{
QList<QSvgNode*>::iterator itr = m_renderers.begin();
applyStyle(p, states);
while (itr != m_renderers.end()) {
QSvgNode *node = *itr;
if ((node->isVisible()) && (node->displayMode() != QSvgNode::NoneMode))
node->draw(p, states);
++itr;
}
revertStyle(p, states);
}
void QSvgUse::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
if (!m_start.isNull()) {
p->translate(m_start);
}
m_link->draw(p, states);
if (!m_start.isNull()) {
p->translate(-m_start);
}
revertStyle(p, states);
}
void QSvgPolyline::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
qreal oldOpacity = p->opacity();
if (p->brush().style() != Qt::NoBrush) {
QPen save = p->pen();
p->setPen(QPen(Qt::NoPen));
p->setOpacity(oldOpacity * states.fillOpacity);
p->drawPolygon(m_poly, states.fillRule);
p->setPen(save);
}
if (p->pen().widthF() != 0) {
p->setOpacity(oldOpacity * states.strokeOpacity);
p->drawPolyline(m_poly);
}
p->setOpacity(oldOpacity);
revertStyle(p, states);
}
void QSvgEllipse::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
QT_SVG_DRAW_SHAPE(p->drawEllipse(m_bounds));
revertStyle(p, states);
}
void QSvgText::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
qreal oldOpacity = p->opacity();
p->setOpacity(oldOpacity * states.fillOpacity);
// Force the font to have a size of 100 pixels to avoid truncation problems
// when the font is very small.
qreal scale = 100.0 / p->font().pointSizeF();
Qt::Alignment alignment = states.textAnchor;
QTransform oldTransform = p->worldTransform();
p->scale(1 / scale, 1 / scale);
qreal y = 0;
bool initial = true;
qreal px = m_coord.x() * scale;
qreal py = m_coord.y() * scale;
QSizeF scaledSize = m_size * scale;
if (m_type == TEXTAREA) {
if (alignment == Qt::AlignHCenter)
px += scaledSize.width() / 2;
else if (alignment == Qt::AlignRight)
px += scaledSize.width();
}
QRectF bounds;
if (m_size.height() != 0)
bounds = QRectF(0, py, 1, scaledSize.height()); // x and width are not used.
bool appendSpace = false;
QVector<QString> paragraphs;
QStack<QTextCharFormat> formats;
QVector<QList<QTextLayout::FormatRange> > formatRanges;
paragraphs.push_back(QString());
formatRanges.push_back(QList<QTextLayout::FormatRange>());
for (int i = 0; i < m_tspans.size(); ++i) {
if (m_tspans[i] == LINEBREAK) {
if (m_type == TEXTAREA) {
if (paragraphs.back().isEmpty()) {
QFont font = p->font();
font.setPixelSize(font.pointSizeF() * scale);
QTextLayout::FormatRange range;
range.start = 0;
range.length = 1;
range.format.setFont(font);
formatRanges.back().append(range);
paragraphs.back().append(QLatin1Char(' '));;
}
appendSpace = false;
paragraphs.push_back(QString());
formatRanges.push_back(QList<QTextLayout::FormatRange>());
}
} else {
WhitespaceMode mode = m_tspans[i]->whitespaceMode();
m_tspans[i]->applyStyle(p, states);
QFont font = p->font();
font.setPixelSize(font.pointSizeF() * scale);
QString newText(m_tspans[i]->text());
newText.replace(QLatin1Char('\t'), QLatin1Char(' '));
newText.replace(QLatin1Char('\n'), QLatin1Char(' '));
bool prependSpace = !appendSpace && !m_tspans[i]->isTspan() && (mode == Default) && !paragraphs.back().isEmpty() && newText.startsWith(QLatin1Char(' '));
if (appendSpace || prependSpace)
paragraphs.back().append(QLatin1Char(' '));
bool appendSpaceNext = (!m_tspans[i]->isTspan() && (mode == Default) && newText.endsWith(QLatin1Char(' ')));
if (mode == Default) {
newText = newText.simplified();
if (newText.isEmpty())
appendSpaceNext = false;
}
QTextLayout::FormatRange range;
range.start = paragraphs.back().length();
range.length = newText.length();
range.format.setFont(font);
range.format.setTextOutline(p->pen());
range.format.setForeground(p->brush());
if (appendSpace) {
Q_ASSERT(!formatRanges.back().isEmpty());
++formatRanges.back().back().length;
} else if (prependSpace) {
--range.start;
++range.length;
}
formatRanges.back().append(range);
appendSpace = appendSpaceNext;
paragraphs.back() += newText;
m_tspans[i]->revertStyle(p, states);
}
}
if (states.svgFont) {
// SVG fonts not fully supported...
QString text = paragraphs.front();
for (int i = 1; i < paragraphs.size(); ++i) {
text.append(QLatin1Char('\n'));
text.append(paragraphs[i]);
}
states.svgFont->draw(p, m_coord * scale, text, p->font().pointSizeF() * scale, states.textAnchor);
} else {
for (int i = 0; i < paragraphs.size(); ++i) {
QTextLayout tl(paragraphs[i]);
QTextOption op = tl.textOption();
op.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
tl.setTextOption(op);
tl.setAdditionalFormats(formatRanges[i]);
tl.beginLayout();
forever {
QTextLine line = tl.createLine();
if (!line.isValid())
break;
if (m_size.width() != 0)
line.setLineWidth(scaledSize.width());
}
tl.endLayout();
bool endOfBoundsReached = false;
for (int i = 0; i < tl.lineCount(); ++i) {
QTextLine line = tl.lineAt(i);
qreal x = 0;
if (alignment == Qt::AlignHCenter)
x -= 0.5 * line.naturalTextWidth();
else if (alignment == Qt::AlignRight)
x -= line.naturalTextWidth();
if (initial && m_type == TEXT)
y -= line.ascent();
initial = false;
line.setPosition(QPointF(x, y));
// Check if the current line fits into the bounding rectangle.
if ((m_size.width() != 0 && line.naturalTextWidth() > scaledSize.width())
|| (m_size.height() != 0 && y + line.height() > scaledSize.height())) {
// I need to set the bounds height to 'y-epsilon' to avoid drawing the current
// line. Since the font is scaled to 100 units, 1 should be a safe epsilon.
bounds.setHeight(y - 1);
endOfBoundsReached = true;
break;
}
y += 1.1 * line.height();
}
tl.draw(p, QPointF(px, py), QVector<QTextLayout::FormatRange>(), bounds);
if (endOfBoundsReached)
break;
}
}
p->setWorldTransform(oldTransform, false);
p->setOpacity(oldOpacity);
revertStyle(p, states);
}
void QSvgArc::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
p->drawPath(cubic);
revertStyle(p, states);
}
void QSvgPolygon::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
QT_SVG_DRAW_SHAPE(p->drawPolygon(m_poly, states.fillRule));
revertStyle(p, states);
}
void QSvgLine::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
p->drawLine(m_bounds);
revertStyle(p, states);
}
void QSvgText::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
QSvgFontStyle *fontStyle = static_cast<QSvgFontStyle*>(
styleProperty(QSvgStyleProperty::FONT));
if (fontStyle && fontStyle->svgFont()) {
// SVG fonts not fully supported...
QString text = m_paragraphs.front();
for (int i = 1; i < m_paragraphs.size(); ++i) {
text.append(QLatin1Char('\n'));
text.append(m_paragraphs[i]);
}
fontStyle->svgFont()->draw(p, m_coord, text, fontStyle->pointSize(), m_textAlignment);
revertStyle(p, states);
return;
}
// Scale the font to its correct size.
QTransform oldTransform = p->worldTransform();
p->scale(1 / m_scale, 1 / m_scale);
qreal y = 0;
bool initial = true;
qreal px = m_coord.x() * m_scale;
qreal py = m_coord.y() * m_scale;
QSizeF scaledSize = m_size * m_scale;
if (m_type == TEXTAREA) {
if (m_textAlignment == Qt::AlignHCenter)
px += scaledSize.width() / 2;
else if (m_textAlignment == Qt::AlignRight)
px += scaledSize.width();
}
QRectF bounds;
if (m_size.height() != 0)
bounds = QRectF(0, 0, 1, scaledSize.height());
for (int i = 0; i < m_paragraphs.size(); ++i) {
QTextLayout tl(m_paragraphs[i]);
QTextOption op = tl.textOption();
op.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
tl.setTextOption(op);
tl.setAdditionalFormats(m_formatRanges[i]);
tl.beginLayout();
forever {
QTextLine line = tl.createLine();
if (!line.isValid())
break;
if (m_size.width() != 0)
line.setLineWidth(scaledSize.width());
}
tl.endLayout();
bool endOfBoundsReached = false;
for (int i = 0; i < tl.lineCount(); ++i) {
QTextLine line = tl.lineAt(i);
qreal x = 0;
if (m_textAlignment == Qt::AlignHCenter)
x -= line.naturalTextWidth() / 2;
else if (m_textAlignment == Qt::AlignRight)
x -= line.naturalTextWidth();
if (initial && m_type == TEXT)
y -= line.ascent();
initial = false;
line.setPosition(QPointF(x, y));
if ((m_size.width() != 0 && line.naturalTextWidth() > scaledSize.width())
|| (m_size.height() != 0 && y + line.height() > scaledSize.height())) {
bounds.setHeight(y);
endOfBoundsReached = true;
break;
}
y += 1.1 * line.height();
}
tl.draw(p, QPointF(px, py), QVector<QTextLayout::FormatRange>(), bounds);
if (endOfBoundsReached)
break;
}
p->setWorldTransform(oldTransform, false);
revertStyle(p, states);
}
void QSvgVideo::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
revertStyle(p, states);
}
void QSvgImage::draw(QPainter *p, QSvgExtraStates &states)
{
applyStyle(p, states);
p->drawImage(m_bounds, m_image);
revertStyle(p, states);
}
void QSvgSwitch::draw(QPainter *p, QSvgExtraStates &states)
{
QList<QSvgNode*>::iterator itr = m_renderers.begin();
applyStyle(p, states);
while (itr != m_renderers.end()) {
QSvgNode *node = *itr;
if (node->isVisible() && (node->displayMode() != QSvgNode::NoneMode)) {
const QStringList &features = node->requiredFeatures();
const QStringList &extensions = node->requiredExtensions();
const QStringList &languages = node->requiredLanguages();
const QStringList &formats = node->requiredFormats();
const QStringList &fonts = node->requiredFonts();
bool okToRender = true;
if (!features.isEmpty()) {
QStringList::const_iterator sitr = features.constBegin();
for (; sitr != features.constEnd(); ++sitr) {
if (!isSupportedSvgFeature(*sitr)) {
okToRender = false;
break;
}
}
}
if (okToRender && !extensions.isEmpty()) {
QStringList::const_iterator sitr = extensions.constBegin();
for (; sitr != extensions.constEnd(); ++sitr) {
if (!isSupportedSvgExtension(*sitr)) {
okToRender = false;
break;
}
}
}
if (okToRender && !languages.isEmpty()) {
QStringList::const_iterator sitr = languages.constBegin();
okToRender = false;
for (; sitr != languages.constEnd(); ++sitr) {
if ((*sitr).startsWith(m_systemLanguagePrefix)) {
okToRender = true;
break;
}
}
}
if (okToRender && !formats.isEmpty()) {
okToRender = false;
}
if (okToRender && !fonts.isEmpty()) {
okToRender = false;
}
if (okToRender) {
node->draw(p, states);
break;
}
}
++itr;
}
revertStyle(p, states);
}
