bool addLine(QTextLine &line) {
if (line.height() > 20)
m_y += line.height();
else
m_y += 14.4;
return false;
}
void YTDelegate::layoutText(QTextLayout& textLayout, QString text, QSize constraint) const
{
QTextOption textOption(Qt::AlignJustify);
textLayout.setTextOption(textOption);
textLayout.setText(text);
textLayout.beginLayout();
int lHeight = 0;
while(true){
QTextLine line = textLayout.createLine();
if(!line.isValid())
break;
line.setLineWidth(constraint.width());
line.setPosition(QPointF(0, lHeight));
if(lHeight + line.height() > constraint.height())
{
QTextLine lastLine = textLayout.lineAt(textLayout.lineCount() - 2);
QString lastString = text.mid(lastLine.textStart());
QFontMetrics fm(textLayout.font());
text.chop(lastString.length());
text += fm.elidedText(lastString, Qt::ElideRight, constraint.width()-1);
textLayout.endLayout();
layoutText(textLayout, text, constraint);
return;
}
lHeight += line.height();
lHeight += line.leading();
}
textLayout.endLayout();
}
void TestDocumentLayout::placeAnchoredFrame3()
{
// basic inline frame that acts like a really big character
initForNewTest(QString(loremIpsum));
MockShape *picture = new MockShape();
picture->setSize(QSizeF(100, 100));
KTextAnchor *anchor = new KTextAnchor(picture);
anchor->setAlignment(KTextAnchor::VerticalOffset);
anchor->setAlignment(KTextAnchor::HorizontalOffset);
QTextCursor cursor(doc);
KInlineTextObjectManager *manager = new KInlineTextObjectManager();
layout->setInlineTextObjectManager(manager);
MockLayoutState *state = new MockLayoutState(doc);
layout->setLayout(state);
state->shape = shape1;
manager->insertInlineObject(cursor, anchor);
layout->layout();
/*
I have two goals with 'offset'.
One is that I want to be able to change the baseline of my anchored object.
The other is that OOo / ODF allows me to have an arbitairy distance from my anchor
so I can place something at the center of my page or whatever.
So what about I switch from the first to the latter based on the font height.
If my offset 'x' != 0, make the image floating.
If my offset 'y' is such that it would be above or below my line; make floating.
*/
QTextLayout *lay = doc->begin().layout();
QVERIFY(lay->lineCount() >= 2);
QTextLine line = lay->lineAt(0);
QCOMPARE(line.descent(), (qreal) 100);
QCOMPARE(line.position(), QPointF());
line = lay->lineAt(1);
QVERIFY(line.height() < 20);
// now move the character which makes it a shape to run around and no longer
// a big character.
anchor->setOffset(QPointF(50, 20));
layout->layout();
lay = doc->begin().layout();
QVERIFY(lay->lineCount() >= 2);
line = lay->lineAt(0);
QVERIFY(line.height() < 20);
QCOMPARE(line.position(), QPointF());
line = lay->lineAt(1);
QVERIFY(line.height() < 20);
QCOMPARE(line.position().x(), 0.);
QVERIFY(qAbs(line.position().y() - 14.4) < 0.125);
}
void KTextDocumentLayout::Private::adjustSize()
{
if (parent->resizeMethod() == KTextDocument::NoResize)
return;
if (parent->shapes().isEmpty())
return;
// Limit auto-resizing to the first shape only (there won't be more
// with auto-resizing turned on, unless specifically set)
KShape *shape = parent->shapes().first();
// Determine the maximum width of all text lines
qreal width = 0;
for (QTextBlock block = parent->document()->begin(); block.isValid(); block = block.next()) {
// The block layout's wrap mode must be QTextOption::NoWrap, thus the line count
// of a valid block must be 1 (otherwise this resizing scheme wouldn't work)
Q_ASSERT(block.layout()->lineCount() == 1);
QTextLine line = block.layout()->lineAt(0);
width = qMax(width, line.naturalTextWidth());
}
// Use position and height of last text line to calculate height
QTextLine line = parent->document()->lastBlock().layout()->lineAt(0);
qreal height = line.position().y() + line.height();
shape->setSize(QSizeF(width, height));
}
static void calculateBoundingRect( QTextDocument *document, int startPosition, int endPosition,
QRectF &rect )
{
const QTextBlock startBlock = document->findBlock( startPosition );
const QRectF startBoundingRect = document->documentLayout()->blockBoundingRect( startBlock );
const QTextBlock endBlock = document->findBlock( endPosition );
const QRectF endBoundingRect = document->documentLayout()->blockBoundingRect( endBlock );
QTextLayout *startLayout = startBlock.layout();
QTextLayout *endLayout = endBlock.layout();
int startPos = startPosition - startBlock.position();
int endPos = endPosition - endBlock.position();
const QTextLine startLine = startLayout->lineForTextPosition( startPos );
const QTextLine endLine = endLayout->lineForTextPosition( endPos );
double x = startBoundingRect.x() + startLine.cursorToX( startPos );
double y = startBoundingRect.y() + startLine.y();
double r = endBoundingRect.x() + endLine.cursorToX( endPos );
double b = endBoundingRect.y() + endLine.y() + endLine.height();
const QSizeF size = document->size();
rect = QRectF( x / size.width(), y / size.height(),
(r - x) / size.width(), (b - y) / size.height() );
}
//virtual
void PixButton::redoLabelTextLayout()
{
//TODO: somewhat wasteful. If there is no label, should just exit early and leave a layout that will be left unrendered by paint()
m_textLayoutObject.clearLayout();
m_textLayoutObject.setText(m_label);
m_textLayoutObject.setFont(m_textFont);
QTextOption textOpts;
textOpts.setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
textOpts.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
m_textLayoutObject.setTextOption(textOpts);
QFontMetrics textFontMetrics(m_textFont);
int leading = textFontMetrics.leading();
int rise = textFontMetrics.ascent();
qreal height = 0;
m_textLayoutObject.beginLayout();
while (height < m_labelMaxGeom.height()) {
QTextLine line = m_textLayoutObject.createLine();
if (!line.isValid())
break;
line.setLineWidth(m_labelMaxGeom.width());
if (m_textLayoutObject.lineCount() > 1)
{
height += leading;
}
line.setPosition(QPointF(0, height));
height += line.height();
}
height = qMin((quint32)DimensionsGlobal::roundUp(height),(quint32)m_labelMaxGeom.height());
height = DimensionsGlobal::roundDown(height) - (DimensionsGlobal::roundDown(height) % 2); //force to an even #
m_textLayoutObject.endLayout();
//TODO: PIXEL-ALIGN
m_labelGeom = DimensionsGlobal::realRectAroundRealPoint(QSizeF(m_textLayoutObject.boundingRect().width(),height)).toAlignedRect();
}
void PluginListDelegate::drawDisplay(QPainter* painter, const QStyleOptionViewItem &option, const QRect &rect, const QString &text) const
{
QTextDocument textDocument;
textDocument.setHtml(text);
QTextLayout textLayout(textDocument.begin());
textLayout.setFont(option.font);
const int textMargin = QApplication::style()->pixelMetric(QStyle::PM_FocusFrameHMargin, 0) + 1;
QRect textRect = rect.adjusted(textMargin, 0, -textMargin, 0); // remove width padding
textLayout.beginLayout();
qreal height = 0;
while (1) {
QTextLine line = textLayout.createLine();
if (!line.isValid()) {
break;
}
line.setLineWidth(textRect.width());
height += 3;
line.setPosition(QPoint(0, height));
height += line.height();
}
textLayout.endLayout();
textLayout.draw(painter, QPointF(textRect.left(), textRect.top()));
}
void paint_QTextLayout(QPainter &p, bool useCache)
{
static bool first = true;
static QTextLayout *textLayout[lines];
if (first) {
for (int i = 0; i < lines; ++i) {
textLayout[i] = new QTextLayout(strings[i]);
int leading = p.fontMetrics().leading();
qreal height = 0;
qreal widthUsed = 0;
textLayout[i]->setCacheEnabled(useCache);
textLayout[i]->beginLayout();
while (1) {
QTextLine line = textLayout[i]->createLine();
if (!line.isValid())
break;
line.setLineWidth(lineWidth);
height += leading;
line.setPosition(QPointF(0, height));
height += line.height();
widthUsed = qMax(widthUsed, line.naturalTextWidth());
}
textLayout[i]->endLayout();
}
first = false;
}
for (int i = 0; i < count; ++i) {
for (int j = 0; j < lines; ++j) {
textLayout[j]->draw(&p, QPoint(0, j*spacing));
}
}
}
void TextLabel::layoutText(QTextLayout &layout, const QString &text, const QSize &constraints)
{
QFontMetrics metrics(layout.font());
int leading = metrics.leading();
int height = 0;
int maxWidth = constraints.width();
int widthUsed = 0;
int lineSpacing = metrics.lineSpacing();
QTextLine line;
layout.setText(text);
layout.beginLayout();
while ((line = layout.createLine()).isValid()) {
height += leading;
// Make the last line that will fit infinitely long.
// drawTextLayout() will handle this by fading the line out
// if it won't fit in the constraints.
if (height + 2 * lineSpacing > constraints.height()) {
line.setPosition(QPoint(0, height));
break;
}
line.setLineWidth(maxWidth);
line.setPosition(QPoint(0, height));
height += int(line.height());
widthUsed = int(qMax(qreal(widthUsed), line.naturalTextWidth()));
}
layout.endLayout();
}
int KTextDocumentLayout::hitTestIterated(QTextFrame::iterator begin, QTextFrame::iterator end, const QPointF &point, Qt::HitTestAccuracy accuracy) const
{
int position = -1;
QTextFrame::iterator it = begin;
for (it = begin; it != end; ++it) {
QTextBlock block = it.currentBlock();
QTextTable *table = qobject_cast<QTextTable*>(it.currentFrame());
QTextFrame *subFrame = it.currentFrame();
if (table) {
QTextTableCell cell = m_state->hitTestTable(table, point);
if (cell.isValid()) {
position = hitTestIterated(cell.begin(), cell.end(), point,
accuracy);
if (position == -1)
position = cell.lastPosition();
return position;
}
continue;
} else if (subFrame) {
position = hitTestIterated(subFrame->begin(), subFrame->end(), point, accuracy);
if (position != -1)
return position;
continue;
} else {
if (!block.isValid())
continue;
}
// kDebug(32500) <<"hitTest[" << point.x() <<"," << point.y() <<"]";
QTextLayout *layout = block.layout();
if (point.y() > layout->boundingRect().bottom()) {
// just skip this block. position = block.position() + block.length() - 1;
continue;
}
for (int i = 0; i < layout->lineCount(); i++) {
QTextLine line = layout->lineAt(i);
// kDebug(32500) <<" + line[" << line.textStart() <<"]:" << line.y() <<"-" << line.height();
if (point.y() > line.y() + line.height()) {
position = line.textStart() + line.textLength();
continue;
}
if (accuracy == Qt::ExactHit && point.y() < line.y()) // between lines
return -1;
if (accuracy == Qt::ExactHit && // left or right of line
(point.x() < line.x() || point.x() > line.x() + line.width()))
return -1;
if (point.x() > line.width() && layout->textOption().textDirection() == Qt::RightToLeft) {
// totally right of RTL text means the position is the start of the text.
return block.position() + line.textStart();
}
return block.position() + line.xToCursor(point.x());
}
}
return -1;
}
void TextLabel::drawTextLayout(QPainter *painter, const QTextLayout &layout, const QRect &rect)
{
if (rect.width() < 1 || rect.height() < 1) {
return;
}
QPixmap pixmap(rect.size());
pixmap.fill(Qt::transparent);
QPainter p(&pixmap);
p.setPen(painter->pen());
// Create the alpha gradient for the fade out effect
QLinearGradient alphaGradient(0, 0, 1, 0);
alphaGradient.setCoordinateMode(QGradient::ObjectBoundingMode);
if (layout.textOption().textDirection() == Qt::LeftToRight) {
alphaGradient.setColorAt(0, QColor(0, 0, 0, 255));
alphaGradient.setColorAt(1, QColor(0, 0, 0, 0));
} else {
alphaGradient.setColorAt(0, QColor(0, 0, 0, 0));
alphaGradient.setColorAt(1, QColor(0, 0, 0, 255));
}
QFontMetrics fm(layout.font());
int textHeight = layout.lineCount() * fm.lineSpacing();
QPointF position(0, (rect.height() - textHeight) / 2);
QList<QRect> fadeRects;
int fadeWidth = 30;
// Draw each line in the layout
for (int i = 0; i < layout.lineCount(); i++) {
QTextLine line = layout.lineAt(i);
line.draw(&p, position);
// Add a fade out rect to the list if the line is too long
if (line.naturalTextWidth() > rect.width())
{
int x = int(qMin(line.naturalTextWidth(), (qreal)pixmap.width())) - fadeWidth;
int y = int(line.position().y() + position.y());
QRect r = QStyle::visualRect(layout.textOption().textDirection(), pixmap.rect(),
QRect(x, y, fadeWidth, int(line.height())));
fadeRects.append(r);
}
}
// Reduce the alpha in each fade out rect using the alpha gradient
if (!fadeRects.isEmpty()) {
p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
foreach (const QRect &rect, fadeRects) {
p.fillRect(rect, alphaGradient);
}
// Origin: Qt
static void viewItemTextLayout ( QTextLayout &textLayout, int lineWidth, qreal &height, qreal &widthUsed )
{
height = 0;
widthUsed = 0;
textLayout.beginLayout();
while ( true )
{
QTextLine line = textLayout.createLine();
if ( !line.isValid() )
break;
line.setLineWidth ( lineWidth );
line.setPosition ( QPointF ( 0, height ) );
height += line.height();
widthUsed = qMax ( widthUsed, line.naturalTextWidth() );
}
textLayout.endLayout();
}
static int layoutText(QTextLayout *layout, int maxWidth) {
qreal height = 0;
int textWidth = 0;
layout->beginLayout();
while (true) {
QTextLine line = layout->createLine();
if (!line.isValid()) {
break;
}
line.setLineWidth(maxWidth);
line.setPosition(QPointF(0, height));
height += line.height();
textWidth = qMax(textWidth, qRound(line.naturalTextWidth() + 0.5));
}
layout->endLayout();
return textWidth;
}
// copied from QItemDelegate for drawDisplay
QSizeF doTextLayout(QTextLayout *textLayout, int lineWidth)
{
qreal height = 0;
qreal widthUsed = 0;
textLayout->beginLayout();
while (true) {
QTextLine line = textLayout->createLine();
if (!line.isValid())
break;
line.setLineWidth(lineWidth);
line.setPosition(QPointF(0, height));
height += line.height();
widthUsed = qMax(widthUsed, line.naturalTextWidth());
}
textLayout->endLayout();
return QSizeF(widthUsed, height);
}
QSizeF QItemDelegatePrivate::doTextLayout(int lineWidth) const
{
qreal height = 0;
qreal widthUsed = 0;
textLayout.beginLayout();
while (true) {
QTextLine line = textLayout.createLine();
if (!line.isValid())
break;
line.setLineWidth(lineWidth);
line.setPosition(QPointF(0, height));
height += line.height();
widthUsed = qMax(widthUsed, line.naturalTextWidth());
}
textLayout.endLayout();
return QSizeF(widthUsed, height);
}
void CodeEditor::paintEvent(QPaintEvent* event)
{
QPlainTextEdit::paintEvent(event);
QPainter painter(viewport());
painter.setPen(Qt::darkGray);
QTextBlock block = firstVisibleBlock();
QRectF rect;
do {
if (!block.isVisible())
continue;
rect = blockBoundingGeometry(block).translated(contentOffset());
QTextLine line = block.layout()->lineAt(0);
if (config->whitespaces) {
QString txt = block.text();
for (int i = 0; i < txt.length(); i++) {
// rect.x() <- учитывая горизонтальный скролинг
QPoint point(rect.x() + line.cursorToX(i), rect.y() + line.ascent());
if (txt[i] == ' ')
painter.drawText(point, QChar(0x00b7));
else if (txt[i] == '\t')
painter.drawText(point, QChar(0x21b9));
}
}
int state = block.userState();
if (!(state & Error) && state & Folded) {
QRect collapseRect(rect.x() + line.rect().x() + line.naturalTextWidth() + FONTWIDTH * 2,
rect.y() + 2, FONTWIDTH * 6, line.height() - 4);
painter.drawText(collapseRect, Qt::AlignCenter, state & Comment ? "...;" : "...)");
painter.drawRoundedRect(collapseRect, 4, 6);
}
} while ((block = block.next()).isValid() && rect.y() < viewport()->height());
}
QSize QDeclarativeTextPrivate::setupTextLayout(QTextLayout *layout)
{
Q_Q(QDeclarativeText);
layout->setCacheEnabled(true);
int height = 0;
qreal widthUsed = 0;
qreal lineWidth = 0;
//set manual width
if ((wrap || elideMode != QDeclarativeText::ElideNone) && q->widthValid())
lineWidth = q->width();
layout->beginLayout();
while (1) {
QTextLine line = layout->createLine();
if (!line.isValid())
break;
if ((wrap || elideMode != QDeclarativeText::ElideNone) && q->widthValid())
line.setLineWidth(lineWidth);
}
layout->endLayout();
int x = 0;
for (int i = 0; i < layout->lineCount(); ++i) {
QTextLine line = layout->lineAt(i);
widthUsed = qMax(widthUsed, line.naturalTextWidth());
line.setPosition(QPointF(0, height));
height += int(line.height());
if (!cache) {
if (hAlign == QDeclarativeText::AlignLeft) {
x = 0;
} else if (hAlign == QDeclarativeText::AlignRight) {
x = q->width() - (int)line.naturalTextWidth();
} else if (hAlign == QDeclarativeText::AlignHCenter) {
x = (q->width() - (int)line.naturalTextWidth()) / 2;
}
line.setPosition(QPoint(x, (int)line.y()));
}
}
return QSize(qCeil(widthUsed), height);
}
void Window::paintEvent(QPaintEvent *event)
{
//! [0]
QTextLayout textLayout(text, font);
qreal margin = 10;
qreal radius = qMin(width()/2.0, height()/2.0) - margin;
QFontMetrics fm(font);
qreal lineHeight = fm.height();
qreal y = 0;
textLayout.beginLayout();
while (1) {
// create a new line
QTextLine line = textLayout.createLine();
if (!line.isValid())
break;
qreal x1 = qMax(0.0, pow(pow(radius,2)-pow(radius-y,2), 0.5));
qreal x2 = qMax(0.0, pow(pow(radius,2)-pow(radius-(y+lineHeight),2), 0.5));
qreal x = qMax(x1, x2) + margin;
qreal lineWidth = (width() - margin) - x;
line.setLineWidth(lineWidth);
line.setPosition(QPointF(x, margin+y));
y += line.height();
}
textLayout.endLayout();
QPainter painter;
painter.begin(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.fillRect(rect(), Qt::white);
painter.setBrush(QBrush(Qt::black));
painter.setPen(QPen(Qt::black));
textLayout.draw(&painter, QPoint(0,0));
painter.setBrush(QBrush(QColor("#a6ce39")));
painter.setPen(QPen(Qt::black));
painter.drawEllipse(QRectF(-radius, margin, 2*radius, 2*radius));
painter.end();
//! [0]
}
void CodeEditor::mouseMoveEvent(QMouseEvent* event)
{
QTextBlock block = findBlockByY(event->pos().y());
QRect collapseRect;
if (block.isValid()) {
QRectF rect = blockBoundingGeometry(block).translated(contentOffset());
QTextLine line = block.layout()->lineAt(0);
collapseRect = QRect(rect.x() + line.rect().x() + line.naturalTextWidth() + FONTWIDTH * 2,
rect.y() + 2, FONTWIDTH * 6, line.height() - 4);
}
int state = block.userState();
if (!(state & Error) && state & Folded && collapseRect.contains(event->pos())) {
pointedBlock = block;
viewport()->setCursor(Qt::PointingHandCursor);
QString str;
while ((block = block.next()).isValid() && !block.isVisible()) {
if (str.count() > 1)
str += "\n";
if (block.blockNumber() - pointedBlock.blockNumber() > 50) {
str += "..."; // "\n...";
break;
}
str += block.text();
}
QToolTip::showText(event->globalPos(), str, this);
} else {
pointedBlock = QTextBlock();
viewport()->setCursor(Qt::IBeamCursor);
}
QPlainTextEdit::mouseMoveEvent(event);
}
void StyledLabel::layout()
{
qreal h = 0;
qreal w = contentsRect().width();
_layout.beginLayout();
forever {
QTextLine line = _layout.createLine();
if (!line.isValid())
break;
line.setLineWidth(w);
line.setPosition(QPointF(0, h));
h += line.height();
}
_layout.endLayout();
updateSizeHint();
updateToolTip();
update();
}
qreal QmlConsoleItemDelegate::layoutText(QTextLayout &tl, int width,
bool *showFileLineInfo) const
{
qreal height = 0;
tl.beginLayout();
while (true) {
QTextLine line = tl.createLine();
if (!line.isValid())
break;
line.setLeadingIncluded(true);
line.setLineWidth(width);
if (width < line.naturalTextWidth() && showFileLineInfo)
*showFileLineInfo = false;
line.setPosition(QPoint(0, height));
height += line.height();
}
tl.endLayout();
return height;
}
void PluginListDelegate::drawDisplay(QPainter* painter, const QStyleOptionViewItem &option, const QRect &rect, const QString &text) const
{
QPalette::ColorGroup cg = option.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled;
if (cg == QPalette::Normal && !(option.state & QStyle::State_Active)) {
cg = QPalette::Inactive;
}
if (option.state & QStyle::State_Selected) {
painter->fillRect(rect, option.palette.brush(cg, QPalette::Highlight));
painter->setPen(option.palette.color(cg, QPalette::HighlightedText));
}
else {
painter->setPen(option.palette.color(cg, QPalette::Text));
}
QTextDocument textDocument;
textDocument.setHtml(text);
QTextLayout textLayout(textDocument.begin());
textLayout.setFont(option.font);
const int textMargin = QApplication::style()->pixelMetric(QStyle::PM_FocusFrameHMargin, 0) + 1;
QRect textRect = rect.adjusted(textMargin, 0, -textMargin, 0); // remove width padding
textLayout.beginLayout();
qreal height = 0;
QTextLine line = textLayout.createLine();
while (line.isValid()) {
line.setLineWidth(textRect.width());
height += 3;
line.setPosition(QPoint(0, height));
height += line.height();
line = textLayout.createLine();
}
textLayout.endLayout();
textLayout.draw(painter, QPointF(textRect.left(), textRect.top()));
}
//virtual
void PageTab::redoLabelTextLayout()
{
//TODO: somewhat wasteful. If there is no label, should just exit early and leave a layout that will be left unrendered by paint()
m_textLayoutObject.clearLayout();;
//TODO: Need a real fix later instead of localizing the labels at runtime
QString m_tabLabelLocalized = fromStdUtf8(LOCALIZED(m_tabLabel.toStdString()));
m_textLayoutObject.setText(m_tabLabelLocalized);
// int fontSize = qBound(4,(int)((qreal)(m_labelMaxGeom.height())*0.5),24) -2;
// fontSize = fontSize - (fontSize % 2);
// m_textFont.setPixelSize(fontSize);
m_textLayoutObject.setFont(m_textFont);
QTextOption textOpts;
textOpts.setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
textOpts.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
m_textLayoutObject.setTextOption(textOpts);
QFontMetrics textFontMetrics(m_textFont);
int leading = textFontMetrics.leading();
int rise = textFontMetrics.ascent();
qreal height = 0;
m_textLayoutObject.beginLayout();
while (height < m_labelMaxGeom.height()) {
QTextLine line = m_textLayoutObject.createLine();
if (!line.isValid())
break;
line.setLineWidth(m_labelMaxGeom.width());
if (m_textLayoutObject.lineCount() > 1)
{
height += leading;
}
line.setPosition(QPointF(0, height));
height += line.height();
}
height = qMin((quint32)DimensionsGlobal::roundUp(height),(quint32)m_labelMaxGeom.height());
height = DimensionsGlobal::roundDown(height) - (DimensionsGlobal::roundDown(height) % 2); //force to an even #
m_textLayoutObject.endLayout();
//TODO: PIXEL-ALIGN
m_labelGeom = DimensionsGlobal::realRectAroundRealPoint(QSizeF(m_textLayoutObject.boundingRect().width(),height)).toAlignedRect();
}
QStringList
StatusEventItemDelegate::layoutText(const QString &text,
const QFont &font,
int maxLineWidth,
int maxLines,
int *textHeight)
{
QTextLayout textLayout(text, font);
QFontMetrics fontMetrics(font);
QStringList lines;
qreal height = 0.0;
textLayout.beginLayout();
while (lines.size() < maxLines) {
QTextLine line = textLayout.createLine();
if (! line.isValid())
break;
if (maxLines <= 0 || lines.size() < maxLines-1) {
// Wrap the current line at or below the maximum line width
line.setLineWidth(maxLineWidth);
lines.append(text.mid(line.textStart(), line.textLength()));
} else {
// Set the line width beyond the max line width, and then elide it
// so the user has a visible indication that the full message is
// longer than what is visible.
line.setLineWidth(2 * maxLineWidth);
lines.append(fontMetrics.elidedText(text.mid(line.textStart()),
Qt::ElideRight,
maxLineWidth));
}
height += fontMetrics.leading() + line.height();
}
textLayout.endLayout();
if (textHeight)
*textHeight = qRound(height);
return lines;
}
// Calculates the height of the description text based on widget width
int QCommandLinkButtonPrivate::descriptionHeight(int widgetWidth) const
{
// Calc width of actual paragraph
int lineWidth = widgetWidth - textOffset() - rightMargin();
qreal descriptionheight = 0;
if (!description.isEmpty()) {
QTextLayout layout(description);
layout.setFont(descriptionFont());
layout.beginLayout();
while (true) {
QTextLine line = layout.createLine();
if (!line.isValid())
break;
line.setLineWidth(lineWidth);
line.setPosition(QPointF(0, descriptionheight));
descriptionheight += line.height();
}
layout.endLayout();
}
return qRound(descriptionheight);
}
void FadingMultilineLabel::positionLayouts()
{
QFontMetricsF fm = fontMetrics();
qreal lineHeight = fm.height();
delete textLayout_;
textLayout_ = 0;
textLayout_ = new QTextLayout(text_, font());
textLayout_->setTextOption(textOption_);
// textLayout_->setAdditionalFormats(formats[p]);
textLayout_->beginLayout();
qreal x = 0.0;
qreal y = 0.0;
qreal ymax = 0.0;
fadeOuts_.clear();
QTextLine line = textLayout_->createLine();
while (line.isValid()) {
line.setPosition(QPointF(x, y));
line.setLineWidth(width());
if (line.naturalTextWidth() > width()) {
fadeOuts_ << QRect(x, y, width(), lineHeight);
}
y += line.height();
line = textLayout_->createLine();
}
textLayout_->endLayout();
sizeHint_ = QSize(width(), y);
updateGeometry();
}
void TestDocumentLayout::placeAnchoredFrame2()
{
QFETCH(int, horizontalAlignment);
QFETCH(int, verticalAlignment);
QFETCH(QPointF, startPosition);
QFETCH(QPointF, imagePosition);
initForNewTest(QString(loremIpsum));
MockShape *picture = new MockShape();
picture->setSize(QSizeF(198, 400));
KTextAnchor *anchor = new KTextAnchor(picture);
anchor->setAlignment(KTextAnchor::AnchorHorizontal(horizontalAlignment));
anchor->setAlignment(KTextAnchor::AnchorVertical(verticalAlignment));
picture->setPosition(startPosition);
QTextCursor cursor(doc);
KInlineTextObjectManager *manager = new KInlineTextObjectManager();
layout->setInlineTextObjectManager(manager);
MockLayoutState *state = new MockLayoutState(doc);
layout->setLayout(state);
state->shape = shape1;
manager->insertInlineObject(cursor, anchor);
QCOMPARE(cursor.position(), 1);
layout->layout();
QCOMPARE(picture->parent(), shape1);
QCOMPARE(picture->position(), imagePosition);
// test if rest of text is below picture.
QTextLayout *lay = doc->begin().layout();
QVERIFY(lay->lineCount() >= 1);
QTextLine line = lay->lineForTextPosition(1); // the first char of real text.
QVERIFY(line.isValid());
// qDebug() << line.y() << line.height();
QVERIFY(line.y() + line.height() >= 412); // test that text is below image
}
QSize TaskDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
{
QStyleOptionViewItemV4 opt = option;
initStyleOption(&opt, index);
QFontMetrics fm(option.font);
QSize s;
s.setWidth(option.rect.width());
const QAbstractItemView * view = qobject_cast<const QAbstractItemView *>(opt.widget);
TaskModel *model = static_cast<TaskModel *>(view->model());
int width = opt.rect.width() - model->sizeOfFile() - model->sizeOfLineNumber() - 12 - 22;
if (view->selectionModel()->currentIndex() == index) {
QString description = index.data(TaskModel::Description).toString();
// Layout the description
int leading = fm.leading();
int height = 0;
QTextLayout tl(description);
tl.beginLayout();
while (true) {
QTextLine line = tl.createLine();
if (!line.isValid())
break;
line.setLineWidth(width);
height += leading;
line.setPosition(QPoint(0, height));
height += static_cast<int>(line.height());
}
tl.endLayout();
s.setHeight(height + leading + fm.height() + 3);
} else {
s.setHeight(fm.height() + 3);
}
return s;
}
/// Calculate single line layout for given text with specified font.
/// This function automatically add ellipsis text if the naural width
/// is larger than given region.
/// \layout The result layout.
/// \font The font object.
/// \string The text needs to be layouted.
/// \align Alignment.
/// \rect The region.
/// \ellipsis Add ellipse to left or right if necessary.
/// Returns the line height.
int calculateSingleLineLayout(QTextLayout & layout,
const QFont & font,
const QString & string,
const Qt::Alignment align,
const QRect & rect,
const Qt::TextElideMode ellipsis)
{
QFontMetrics fm(font);
// Check if we need to add ellipsis.
QString result_string = string;
int width = ellipsisText(string, fm, rect.width(),
ellipsis, result_string);
// Construct the layout.
layout.clearLayout();
layout.setCacheEnabled(false);
layout.setText(result_string);
layout.setFont(font);
layout.beginLayout();
QTextLine line = layout.createLine();
if (line.isValid())
{
line.setLineWidth(rect.width());
}
layout.endLayout();
// Calculate the position.
int x = rect.left();
int y = rect.top();
int h = static_cast<int>(line.height());
if (align & Qt::AlignHCenter)
{
x = ((rect.width() - width) >> 1) + x;
}
void Msg::ShowMsg(const QString str)
{
mUpdateRect = boundingRect();
mLay->setText(str);
int leading = -3;
qreal h = 0;
qreal maxw = 0;
qreal maxh = 0;
mLay->beginLayout();
while (1)
{
QTextLine line = mLay->createLine();
if (!line.isValid())
{
break;
}
line.setLineWidth(280);
h += leading;
line.setPosition(QPointF(0, h));
h += line.height();
maxw = qMax(maxw, line.naturalTextWidth());
}
mLay->endLayout();
float ypos = 4 + (70 - mLay->boundingRect().height()) / 2;
maxw = qMax(mUpdateRect.width(), mLay->boundingRect().width());
maxh = qMax(mUpdateRect.height(), mLay->boundingRect().height() + ypos);
mUpdateRect = QRectF(0, 0, maxw, maxh + ypos);
update(boundingRect());
}