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-rw-r--r--src/declarative/graphicsitems/qdeclarativetext.cpp957
-rw-r--r--src/declarative/graphicsitems/qdeclarativetext_p_p.h48
2 files changed, 524 insertions, 481 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativetext.cpp b/src/declarative/graphicsitems/qdeclarativetext.cpp
index 54cb062..308aefa 100644
--- a/src/declarative/graphicsitems/qdeclarativetext.cpp
+++ b/src/declarative/graphicsitems/qdeclarativetext.cpp
@@ -85,12 +85,13 @@ private:
DEFINE_BOOL_CONFIG_OPTION(enableImageCache, QML_ENABLE_TEXT_IMAGE_CACHE);
QDeclarativeTextPrivate::QDeclarativeTextPrivate()
-: color((QRgb)0), style(QDeclarativeText::Normal),
- hAlign(QDeclarativeText::AlignLeft), vAlign(QDeclarativeText::AlignTop), elideMode(QDeclarativeText::ElideNone),
- imgDirty(true), dirty(true), richText(false), singleline(false), cache(true), internalWidthUpdate(false), doc(0),
- format(QDeclarativeText::AutoText), wrapMode(QDeclarativeText::NoWrap)
+: color((QRgb)0), style(QDeclarativeText::Normal), hAlign(QDeclarativeText::AlignLeft),
+ vAlign(QDeclarativeText::AlignTop), elideMode(QDeclarativeText::ElideNone),
+ format(QDeclarativeText::AutoText), wrapMode(QDeclarativeText::NoWrap), imageCacheDirty(true),
+ updateOnComponentComplete(true), richText(false), singleline(false), cacheAllTextAsImage(true),
+ internalWidthUpdate(false), doc(0)
{
- cache = enableImageCache();
+ cacheAllTextAsImage = enableImageCache();
QGraphicsItemPrivate::acceptedMouseButtons = Qt::LeftButton;
QGraphicsItemPrivate::flags = QGraphicsItemPrivate::flags & ~QGraphicsItem::ItemHasNoContents;
}
@@ -151,7 +152,6 @@ void QTextDocumentWithImageResources::requestFinished()
#endif
QDeclarativeTextPrivate *d = QDeclarativeTextPrivate::get(textItem);
d->updateLayout();
- d->markImgDirty();
}
}
@@ -172,6 +172,382 @@ void QTextDocumentWithImageResources::setText(const QString &text)
QSet<QUrl> QTextDocumentWithImageResources::errors;
+QDeclarativeTextPrivate::~QDeclarativeTextPrivate()
+{
+}
+
+void QDeclarativeTextPrivate::updateLayout()
+{
+ Q_Q(QDeclarativeText);
+ if (!q->isComponentComplete()) {
+ updateOnComponentComplete = true;
+ return;
+ }
+
+ // Setup instance of QTextLayout for all cases other than richtext
+ if (!richText) {
+ layout.clearLayout();
+ layout.setFont(font);
+ if (format != QDeclarativeText::StyledText) {
+ QString tmp = text;
+ tmp.replace(QLatin1Char('\n'), QChar::LineSeparator);
+ singleline = !tmp.contains(QChar::LineSeparator);
+ if (singleline && elideMode != QDeclarativeText::ElideNone && q->widthValid()) {
+ QFontMetrics fm(font);
+ tmp = fm.elidedText(tmp,(Qt::TextElideMode)elideMode,q->width()); // XXX still worth layout...?
+ }
+ layout.setText(tmp);
+ } else {
+ singleline = false;
+ QDeclarativeStyledText::parse(text, layout);
+ }
+ }
+
+ updateSize();
+}
+
+void QDeclarativeTextPrivate::updateSize()
+{
+ Q_Q(QDeclarativeText);
+
+ if (!q->isComponentComplete()) {
+ updateOnComponentComplete = true;
+ return;
+ }
+
+ invalidateImageCache();
+
+ QFontMetrics fm(font);
+ if (text.isEmpty()) {
+ q->setImplicitHeight(fm.height());
+ emit q->paintedSizeChanged();
+ return;
+ }
+
+ int dy = q->height();
+ QSize size(0, 0);
+
+ //setup instance of QTextLayout for all cases other than richtext
+ if (!richText) {
+ size = setupTextLayout();
+ if (layedOutTextSize != size) {
+ q->prepareGeometryChange();
+ layedOutTextSize = size;
+ }
+ dy -= size.height();
+ } else {
+ singleline = false; // richtext can't elide or be optimized for single-line case
+ ensureDoc();
+ doc->setDefaultFont(font);
+ QTextOption option((Qt::Alignment)int(hAlign | vAlign));
+ option.setWrapMode(QTextOption::WrapMode(wrapMode));
+ doc->setDefaultTextOption(option);
+ if (wrapMode != QDeclarativeText::NoWrap && q->widthValid())
+ doc->setTextWidth(q->width());
+ else
+ doc->setTextWidth(doc->idealWidth()); // ### Text does not align if width is not set (QTextDoc bug)
+ dy -= (int)doc->size().height();
+ QSize dsize = doc->size().toSize();
+ if (dsize != layedOutTextSize) {
+ q->prepareGeometryChange();
+ layedOutTextSize = dsize;
+ }
+ size = QSize(int(doc->idealWidth()),dsize.height());
+ }
+ int yoff = 0;
+
+ if (q->heightValid()) {
+ if (vAlign == QDeclarativeText::AlignBottom)
+ yoff = dy;
+ else if (vAlign == QDeclarativeText::AlignVCenter)
+ yoff = dy/2;
+ }
+ q->setBaselineOffset(fm.ascent() + yoff);
+
+ //### need to comfirm cost of always setting these for richText
+ internalWidthUpdate = true;
+ q->setImplicitWidth(size.width());
+ internalWidthUpdate = false;
+ q->setImplicitHeight(size.height());
+ emit q->paintedSizeChanged();
+}
+
+/*!
+ Lays out the QDeclarativeTextPrivate::layout QTextLayout in the constraints of the QDeclarativeText.
+
+ Returns the size of the final text. This can be used to position the text vertically (the text is
+ already absolutely positioned horizontally).
+*/
+QSize QDeclarativeTextPrivate::setupTextLayout()
+{
+ // ### text layout handling should be profiled and optimized as needed
+ // what about QStackTextEngine engine(tmp, d->font.font()); QTextLayout textLayout(&engine);
+
+ Q_Q(QDeclarativeText);
+ layout.setCacheEnabled(true);
+
+ int height = 0;
+ qreal widthUsed = 0;
+ qreal lineWidth = 0;
+
+ //set manual width
+ if ((wrapMode != QDeclarativeText::NoWrap || elideMode != QDeclarativeText::ElideNone) && q->widthValid())
+ lineWidth = q->width();
+
+ QTextOption textOption = layout.textOption();
+ textOption.setWrapMode(QTextOption::WrapMode(wrapMode));
+ layout.setTextOption(textOption);
+
+ layout.beginLayout();
+ while (1) {
+ QTextLine line = layout.createLine();
+ if (!line.isValid())
+ break;
+
+ if ((wrapMode != QDeclarativeText::NoWrap || elideMode != QDeclarativeText::ElideNone) && q->widthValid())
+ line.setLineWidth(lineWidth);
+ }
+ layout.endLayout();
+
+ for (int i = 0; i < layout.lineCount(); ++i) {
+ QTextLine line = layout.lineAt(i);
+ widthUsed = qMax(widthUsed, line.naturalTextWidth());
+ }
+
+ qreal layoutWidth = q->widthValid()?q->width():widthUsed;
+
+ int x = 0;
+ for (int i = 0; i < layout.lineCount(); ++i) {
+ QTextLine line = layout.lineAt(i);
+ line.setPosition(QPointF(0, height));
+ height += int(line.height());
+
+ if (!cacheAllTextAsImage) {
+ if (hAlign == QDeclarativeText::AlignLeft) {
+ x = 0;
+ } else if (hAlign == QDeclarativeText::AlignRight) {
+ x = layoutWidth - (int)line.naturalTextWidth();
+ } else if (hAlign == QDeclarativeText::AlignHCenter) {
+ x = (layoutWidth - (int)line.naturalTextWidth()) / 2;
+ }
+ line.setPosition(QPoint(x, (int)line.y()));
+ }
+ }
+
+ return QSize(qCeil(widthUsed), height);
+}
+
+/*!
+ Returns a painted version of the QDeclarativeTextPrivate::layout QTextLayout.
+ If \a drawStyle is true, the style color overrides all colors in the document.
+*/
+QPixmap QDeclarativeTextPrivate::textLayoutImage(bool drawStyle)
+{
+ //do layout
+ QSize size = layedOutTextSize;
+
+ int x = 0;
+ for (int i = 0; i < layout.lineCount(); ++i) {
+ QTextLine line = layout.lineAt(i);
+ if (hAlign == QDeclarativeText::AlignLeft) {
+ x = 0;
+ } else if (hAlign == QDeclarativeText::AlignRight) {
+ x = size.width() - (int)line.naturalTextWidth();
+ } else if (hAlign == QDeclarativeText::AlignHCenter) {
+ x = (size.width() - (int)line.naturalTextWidth()) / 2;
+ }
+ line.setPosition(QPoint(x, (int)line.y()));
+ }
+
+ //paint text
+ QPixmap img(size);
+ if (!size.isEmpty()) {
+ img.fill(Qt::transparent);
+#ifdef Q_WS_MAC
+ bool oldSmooth = qt_applefontsmoothing_enabled;
+ qt_applefontsmoothing_enabled = false;
+#endif
+ QPainter p(&img);
+#ifdef Q_WS_MAC
+ qt_applefontsmoothing_enabled = oldSmooth;
+#endif
+ drawTextLayout(&p, QPointF(0,0), drawStyle);
+ }
+ return img;
+}
+
+/*!
+ Paints the QDeclarativeTextPrivate::layout QTextLayout into \a painter at \a pos. If
+ \a drawStyle is true, the style color overrides all colors in the document.
+*/
+void QDeclarativeTextPrivate::drawTextLayout(QPainter *painter, const QPointF &pos, bool drawStyle)
+{
+ if (drawStyle)
+ painter->setPen(styleColor);
+ else
+ painter->setPen(color);
+ painter->setFont(font);
+ layout.draw(painter, pos);
+}
+
+/*!
+ Returns a painted version of the QDeclarativeTextPrivate::doc QTextDocument.
+ If \a drawStyle is true, the style color overrides all colors in the document.
+*/
+QPixmap QDeclarativeTextPrivate::textDocumentImage(bool drawStyle)
+{
+ QSize size = doc->size().toSize();
+
+ //paint text
+ QPixmap img(size);
+ img.fill(Qt::transparent);
+#ifdef Q_WS_MAC
+ bool oldSmooth = qt_applefontsmoothing_enabled;
+ qt_applefontsmoothing_enabled = false;
+#endif
+ QPainter p(&img);
+#ifdef Q_WS_MAC
+ qt_applefontsmoothing_enabled = oldSmooth;
+#endif
+
+ QAbstractTextDocumentLayout::PaintContext context;
+
+ QTextOption oldOption(doc->defaultTextOption());
+ if (drawStyle) {
+ context.palette.setColor(QPalette::Text, styleColor);
+ QTextOption colorOption(doc->defaultTextOption());
+ colorOption.setFlags(QTextOption::SuppressColors);
+ doc->setDefaultTextOption(colorOption);
+ } else {
+ context.palette.setColor(QPalette::Text, color);
+ }
+ doc->documentLayout()->draw(&p, context);
+ if (drawStyle)
+ doc->setDefaultTextOption(oldOption);
+ return img;
+}
+
+/*!
+ Mark the image cache as dirty.
+*/
+void QDeclarativeTextPrivate::invalidateImageCache()
+{
+ Q_Q(QDeclarativeText);
+
+ if (imageCacheDirty)
+ return;
+
+ imageCacheDirty = true;
+ imageCache = QPixmap();
+
+ if (q->isComponentComplete())
+ q->update();
+}
+
+/*!
+ Tests if the image cache is dirty, and repaints it if it is.
+*/
+void QDeclarativeTextPrivate::checkImageCache()
+{
+ if (!imageCacheDirty)
+ return;
+
+ if (text.isEmpty()) {
+
+ imageCache = QPixmap();
+
+ } else {
+
+ QPixmap textImage;
+ QPixmap styledImage;
+
+ if (richText) {
+ textImage = textDocumentImage(false);
+ if (style != QDeclarativeText::Normal)
+ styledImage = textDocumentImage(true); //### should use styleColor
+ } else {
+ textImage = textLayoutImage(false);
+ if (style != QDeclarativeText::Normal)
+ styledImage = textLayoutImage(true); //### should use styleColor
+ }
+
+ switch (style) {
+ case QDeclarativeText::Outline:
+ imageCache = drawOutline(textImage, styledImage);
+ break;
+ case QDeclarativeText::Sunken:
+ imageCache = drawOutline(textImage, styledImage, -1);
+ break;
+ case QDeclarativeText::Raised:
+ imageCache = drawOutline(textImage, styledImage, 1);
+ break;
+ default:
+ imageCache = textImage;
+ break;
+ }
+
+ }
+
+ imageCacheDirty = false;
+}
+
+/*!
+ Ensures the QDeclarativeTextPrivate::doc variable is set to a valid text document
+*/
+void QDeclarativeTextPrivate::ensureDoc()
+{
+ if (!doc) {
+ Q_Q(QDeclarativeText);
+ doc = new QTextDocumentWithImageResources(q);
+ doc->setDocumentMargin(0);
+ }
+}
+
+/*!
+ Draw \a styleSource as an outline around \a source and return the new image.
+*/
+QPixmap QDeclarativeTextPrivate::drawOutline(const QPixmap &source, const QPixmap &styleSource)
+{
+ QPixmap img = QPixmap(styleSource.width() + 2, styleSource.height() + 2);
+ img.fill(Qt::transparent);
+
+ QPainter ppm(&img);
+
+ QPoint pos(0, 0);
+ pos += QPoint(-1, 0);
+ ppm.drawPixmap(pos, styleSource);
+ pos += QPoint(2, 0);
+ ppm.drawPixmap(pos, styleSource);
+ pos += QPoint(-1, -1);
+ ppm.drawPixmap(pos, styleSource);
+ pos += QPoint(0, 2);
+ ppm.drawPixmap(pos, styleSource);
+
+ pos += QPoint(0, -1);
+ ppm.drawPixmap(pos, source);
+ ppm.end();
+
+ return img;
+}
+
+/*!
+ Draw \a styleSource below \a source at \a yOffset and return the new image.
+*/
+QPixmap QDeclarativeTextPrivate::drawOutline(const QPixmap &source, const QPixmap &styleSource, int yOffset)
+{
+ QPixmap img = QPixmap(styleSource.width() + 2, styleSource.height() + 2);
+ img.fill(Qt::transparent);
+
+ QPainter ppm(&img);
+
+ ppm.drawPixmap(QPoint(0, yOffset), styleSource);
+ ppm.drawPixmap(0, 0, source);
+
+ ppm.end();
+
+ return img;
+}
+
/*!
\qmlclass Text QDeclarativeText
\ingroup qml-basic-visual-elements
@@ -211,10 +587,44 @@ QDeclarativeText::~QDeclarativeText()
{
}
+/*!
+ \qmlproperty bool Text::clip
+ This property holds whether the text is clipped.
-QDeclarativeTextPrivate::~QDeclarativeTextPrivate()
-{
-}
+ Note that if the text does not fit in the bounding rectangle it will be abruptly chopped.
+
+ If you want to display potentially long text in a limited space, you probably want to use \c elide instead.
+*/
+
+/*!
+ \qmlproperty bool Text::smooth
+
+ This property holds whether the text is smoothly scaled or transformed.
+
+ Smooth filtering gives better visual quality, but is slower. If
+ the item is displayed at its natural size, this property has no visual or
+ performance effect.
+
+ \note Generally scaling artifacts are only visible if the item is stationary on
+ the screen. A common pattern when animating an item is to disable smooth
+ filtering at the beginning of the animation and reenable it at the conclusion.
+*/
+
+/*!
+ \qmlsignal Text::onLinkActivated(string link)
+
+ This handler is called when the user clicks on a link embedded in the text.
+ The link must be in rich text or HTML format and the
+ \a link string provides access to the particular link.
+
+ \snippet doc/src/snippets/declarative/text/onLinkActivated.qml 0
+
+ The example code will display the text
+ "The main website is at \l{http://qt.nokia.com}{Nokia Qt DF}."
+
+ Clicking on the highlighted link will output
+ \tt{http://qt.nokia.com link activated} to the console.
+*/
/*!
\qmlproperty string Text::font.family
@@ -320,7 +730,6 @@ QDeclarativeTextPrivate::~QDeclarativeTextPrivate()
Text { text: "Hello"; font.capitalization: Font.AllLowercase }
\endqml
*/
-
QFont QDeclarativeText::font() const
{
Q_D(const QDeclarativeText);
@@ -334,30 +743,9 @@ void QDeclarativeText::setFont(const QFont &font)
return;
d->font = font;
-
d->updateLayout();
- d->markImgDirty();
- emit fontChanged(d->font);
-}
-
-void QDeclarativeText::setText(const QString &n)
-{
- Q_D(QDeclarativeText);
- if (d->text == n)
- return;
- d->richText = d->format == RichText || (d->format == AutoText && Qt::mightBeRichText(n));
- if (d->richText) {
- if (isComponentComplete()) {
- d->ensureDoc();
- d->doc->setText(n);
- }
- }
-
- d->text = n;
- d->updateLayout();
- d->markImgDirty();
- emit textChanged(d->text);
+ emit fontChanged(d->font);
}
/*!
@@ -374,17 +762,25 @@ QString QDeclarativeText::text() const
return d->text;
}
-void QDeclarativeText::setColor(const QColor &color)
+void QDeclarativeText::setText(const QString &n)
{
Q_D(QDeclarativeText);
- if (d->color == color)
+ if (d->text == n)
return;
- d->color = color;
- d->markImgDirty();
- emit colorChanged(d->color);
+ d->richText = d->format == RichText || (d->format == AutoText && Qt::mightBeRichText(n));
+ if (d->richText && isComponentComplete()) {
+ d->ensureDoc();
+ d->doc->setText(n);
+ }
+
+ d->text = n;
+ d->updateLayout();
+
+ emit textChanged(d->text);
}
+
/*!
\qmlproperty color Text::color
@@ -398,13 +794,23 @@ void QDeclarativeText::setColor(const QColor &color)
Text { color: "steelblue"; ... }
\endqml
*/
-
QColor QDeclarativeText::color() const
{
Q_D(const QDeclarativeText);
return d->color;
}
+void QDeclarativeText::setColor(const QColor &color)
+{
+ Q_D(QDeclarativeText);
+ if (d->color == color)
+ return;
+
+ d->color = color;
+ d->invalidateImageCache();
+ emit colorChanged(d->color);
+}
+
/*!
\qmlproperty enumeration Text::style
@@ -445,21 +851,10 @@ void QDeclarativeText::setStyle(QDeclarativeText::TextStyle style)
if (isComponentComplete() && (d->style == Normal || style == Normal))
prepareGeometryChange();
d->style = style;
- d->markImgDirty();
+ d->invalidateImageCache();
emit styleChanged(d->style);
}
-void QDeclarativeText::setStyleColor(const QColor &color)
-{
- Q_D(QDeclarativeText);
- if (d->styleColor == color)
- return;
-
- d->styleColor = color;
- d->markImgDirty();
- emit styleColorChanged(d->styleColor);
-}
-
/*!
\qmlproperty color Text::styleColor
@@ -481,6 +876,18 @@ QColor QDeclarativeText::styleColor() const
return d->styleColor;
}
+void QDeclarativeText::setStyleColor(const QColor &color)
+{
+ Q_D(QDeclarativeText);
+ if (d->styleColor == color)
+ return;
+
+ d->styleColor = color;
+ d->invalidateImageCache();
+ emit styleColorChanged(d->styleColor);
+}
+
+
/*!
\qmlproperty enumeration Text::horizontalAlignment
\qmlproperty enumeration Text::verticalAlignment
@@ -511,7 +918,10 @@ void QDeclarativeText::setHAlign(HAlignment align)
if (isComponentComplete())
prepareGeometryChange();
+
d->hAlign = align;
+ d->updateLayout();
+
emit horizontalAlignmentChanged(align);
}
@@ -559,9 +969,8 @@ void QDeclarativeText::setWrapMode(WrapMode mode)
return;
d->wrapMode = mode;
-
d->updateLayout();
- d->markImgDirty();
+
emit wrapModeChanged();
}
@@ -621,7 +1030,6 @@ Column {
\o \image declarative-textformat.png
\endtable
*/
-
QDeclarativeText::TextFormat QDeclarativeText::textFormat() const
{
Q_D(const QDeclarativeText);
@@ -637,19 +1045,13 @@ void QDeclarativeText::setTextFormat(TextFormat format)
bool wasRich = d->richText;
d->richText = format == RichText || (format == AutoText && Qt::mightBeRichText(d->text));
- if (wasRich && !d->richText) {
- //### delete control? (and vice-versa below)
- d->updateLayout();
- d->markImgDirty();
- } else if (!wasRich && d->richText) {
- if (isComponentComplete()) {
- d->ensureDoc();
- d->doc->setText(d->text);
- }
- d->updateLayout();
- d->markImgDirty();
+ if (!wasRich && d->richText && isComponentComplete()) {
+ d->ensureDoc();
+ d->doc->setText(d->text);
}
+ d->updateLayout();
+
emit textFormatChanged(d->format);
}
@@ -688,12 +1090,12 @@ void QDeclarativeText::setElideMode(QDeclarativeText::TextElideMode mode)
return;
d->elideMode = mode;
-
d->updateLayout();
- d->markImgDirty();
+
emit elideModeChanged(d->elideMode);
}
+/*! \internal */
QRectF QDeclarativeText::boundingRect() const
{
Q_D(const QDeclarativeText);
@@ -704,7 +1106,7 @@ QRectF QDeclarativeText::boundingRect() const
int x = 0;
int y = 0;
- QSize size = d->cachedLayoutSize;
+ QSize size = d->layedOutTextSize;
if (d->style != Normal)
size += QSize(2,2);
@@ -737,117 +1139,23 @@ QRectF QDeclarativeText::boundingRect() const
return QRectF(x,y,size.width(),size.height());
}
-void QDeclarativeText::geometryChanged(const QRectF &newGeometry,
- const QRectF &oldGeometry)
+/*! \internal */
+void QDeclarativeText::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
{
Q_D(QDeclarativeText);
- if (!d->internalWidthUpdate && newGeometry.width() != oldGeometry.width()) {
- if (d->wrapMode != QDeclarativeText::NoWrap || d->elideMode != QDeclarativeText::ElideNone) {
- //re-elide if needed
- if (d->singleline && d->elideMode != QDeclarativeText::ElideNone &&
- isComponentComplete() && widthValid()) {
-
- QFontMetrics fm(d->font);
- QString tmp = fm.elidedText(d->text,(Qt::TextElideMode)d->elideMode,width()); // XXX still worth layout...?
- d->layout.setText(tmp);
- }
+ if (!d->internalWidthUpdate && newGeometry.width() != oldGeometry.width() &&
+ (d->wrapMode != QDeclarativeText::NoWrap || d->elideMode != QDeclarativeText::ElideNone)) {
- d->imgDirty = true;
+ if (d->singleline && d->elideMode != QDeclarativeText::ElideNone && widthValid()) {
+ // We need to re-elide
+ d->updateLayout();
+ } else {
+ // We just need to re-layout
d->updateSize();
}
}
- QDeclarativeItem::geometryChanged(newGeometry, oldGeometry);
-}
-
-void QDeclarativeTextPrivate::updateLayout()
-{
- Q_Q(QDeclarativeText);
- if (q->isComponentComplete()) {
- //setup instance of QTextLayout for all cases other than richtext
- if (!richText) {
- layout.clearLayout();
- layout.setFont(font);
- if (format != QDeclarativeText::StyledText) {
- QString tmp = text;
- tmp.replace(QLatin1Char('\n'), QChar::LineSeparator);
- singleline = !tmp.contains(QChar::LineSeparator);
- if (singleline && elideMode != QDeclarativeText::ElideNone && q->widthValid()) {
- QFontMetrics fm(font);
- tmp = fm.elidedText(tmp,(Qt::TextElideMode)elideMode,q->width()); // XXX still worth layout...?
- }
- layout.setText(tmp);
- } else {
- singleline = false;
- QDeclarativeStyledText::parse(text, layout);
- }
- }
- updateSize();
- } else {
- dirty = true;
- }
-}
-
-
-void QDeclarativeTextPrivate::updateSize()
-{
- Q_Q(QDeclarativeText);
- if (q->isComponentComplete()) {
- QFontMetrics fm(font);
- if (text.isEmpty()) {
- q->setImplicitHeight(fm.height());
- emit q->paintedSizeChanged();
- return;
- }
-
- int dy = q->height();
- QSize size(0, 0);
-
- //setup instance of QTextLayout for all cases other than richtext
- if (!richText) {
- size = setupTextLayout();
- if (cachedLayoutSize != size) {
- q->prepareGeometryChange();
- cachedLayoutSize = size;
- }
- dy -= size.height();
- } else {
- singleline = false; // richtext can't elide or be optimized for single-line case
- ensureDoc();
- doc->setDefaultFont(font);
- QTextOption option((Qt::Alignment)int(hAlign | vAlign));
- option.setWrapMode(QTextOption::WrapMode(wrapMode));
- doc->setDefaultTextOption(option);
- if (wrapMode != QDeclarativeText::NoWrap && q->widthValid())
- doc->setTextWidth(q->width());
- else
- doc->setTextWidth(doc->idealWidth()); // ### Text does not align if width is not set (QTextDoc bug)
- dy -= (int)doc->size().height();
- QSize dsize = doc->size().toSize();
- if (dsize != cachedLayoutSize) {
- q->prepareGeometryChange();
- cachedLayoutSize = dsize;
- }
- size = QSize(int(doc->idealWidth()),dsize.height());
- }
- int yoff = 0;
- if (q->heightValid()) {
- if (vAlign == QDeclarativeText::AlignBottom)
- yoff = dy;
- else if (vAlign == QDeclarativeText::AlignVCenter)
- yoff = dy/2;
- }
- q->setBaselineOffset(fm.ascent() + yoff);
-
- //### need to comfirm cost of always setting these for richText
- internalWidthUpdate = true;
- q->setImplicitWidth(size.width());
- internalWidthUpdate = false;
- q->setImplicitHeight(size.height());
- emit q->paintedSizeChanged();
- } else {
- dirty = true;
- }
+ QDeclarativeItem::geometryChanged(newGeometry, oldGeometry);
}
/*!
@@ -872,228 +1180,6 @@ qreal QDeclarativeText::paintedHeight() const
return implicitHeight();
}
-
-
-// ### text layout handling should be profiled and optimized as needed
-// what about QStackTextEngine engine(tmp, d->font.font()); QTextLayout textLayout(&engine);
-
-void QDeclarativeTextPrivate::drawOutline()
-{
- QPixmap img = QPixmap(imgStyleCache.width()+2,imgStyleCache.height()+2);
- img.fill(Qt::transparent);
-
- QPainter ppm(&img);
-
- QPoint pos(imgCache.rect().topLeft());
- pos += QPoint(-1, 0);
- ppm.drawPixmap(pos, imgStyleCache);
- pos += QPoint(2, 0);
- ppm.drawPixmap(pos, imgStyleCache);
- pos += QPoint(-1, -1);
- ppm.drawPixmap(pos, imgStyleCache);
- pos += QPoint(0, 2);
- ppm.drawPixmap(pos, imgStyleCache);
-
- pos += QPoint(0, -1);
- ppm.drawPixmap(pos, imgCache);
- ppm.end();
-
- imgCache = img;
-}
-
-void QDeclarativeTextPrivate::drawOutline(int yOffset)
-{
- QPixmap img = QPixmap(imgStyleCache.width()+2,imgStyleCache.height()+2);
- img.fill(Qt::transparent);
-
- QPainter ppm(&img);
-
- QPoint pos(imgCache.rect().topLeft());
- pos += QPoint(0, yOffset);
- ppm.drawPixmap(pos, imgStyleCache);
-
- pos += QPoint(0, -yOffset);
- ppm.drawPixmap(pos, imgCache);
- ppm.end();
-
- imgCache = img;
-}
-
-QSize QDeclarativeTextPrivate::setupTextLayout()
-{
- Q_Q(QDeclarativeText);
- layout.setCacheEnabled(true);
-
- int height = 0;
- qreal widthUsed = 0;
- qreal lineWidth = 0;
-
- //set manual width
- if ((wrapMode != QDeclarativeText::NoWrap || elideMode != QDeclarativeText::ElideNone) && q->widthValid())
- lineWidth = q->width();
-
- QTextOption textOption = layout.textOption();
- textOption.setWrapMode(QTextOption::WrapMode(wrapMode));
- layout.setTextOption(textOption);
-
- layout.beginLayout();
-
- while (1) {
- QTextLine line = layout.createLine();
- if (!line.isValid())
- break;
-
- if ((wrapMode != QDeclarativeText::NoWrap || 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);
-}
-
-QPixmap QDeclarativeTextPrivate::wrappedTextImage(bool drawStyle)
-{
- //do layout
- QSize size = cachedLayoutSize;
-
- int x = 0;
- for (int i = 0; i < layout.lineCount(); ++i) {
- QTextLine line = layout.lineAt(i);
- if (hAlign == QDeclarativeText::AlignLeft) {
- x = 0;
- } else if (hAlign == QDeclarativeText::AlignRight) {
- x = size.width() - (int)line.naturalTextWidth();
- } else if (hAlign == QDeclarativeText::AlignHCenter) {
- x = (size.width() - (int)line.naturalTextWidth()) / 2;
- }
- line.setPosition(QPoint(x, (int)line.y()));
- }
-
- //paint text
- QPixmap img(size);
- if (!size.isEmpty()) {
- img.fill(Qt::transparent);
-#ifdef Q_WS_MAC
- bool oldSmooth = qt_applefontsmoothing_enabled;
- qt_applefontsmoothing_enabled = false;
-#endif
- QPainter p(&img);
-#ifdef Q_WS_MAC
- qt_applefontsmoothing_enabled = oldSmooth;
-#endif
- drawWrappedText(&p, QPointF(0,0), drawStyle);
- }
- return img;
-}
-
-void QDeclarativeTextPrivate::drawWrappedText(QPainter *p, const QPointF &pos, bool drawStyle)
-{
- if (drawStyle)
- p->setPen(styleColor);
- else
- p->setPen(color);
- p->setFont(font);
- layout.draw(p , pos);
-}
-
-QPixmap QDeclarativeTextPrivate::richTextImage(bool drawStyle)
-{
- QSize size = doc->size().toSize();
-
- //paint text
- QPixmap img(size);
- img.fill(Qt::transparent);
-#ifdef Q_WS_MAC
- bool oldSmooth = qt_applefontsmoothing_enabled;
- qt_applefontsmoothing_enabled = false;
-#endif
- QPainter p(&img);
-#ifdef Q_WS_MAC
- qt_applefontsmoothing_enabled = oldSmooth;
-#endif
-
- QAbstractTextDocumentLayout::PaintContext context;
-
- QTextOption oldOption(doc->defaultTextOption());
- if (drawStyle) {
- context.palette.setColor(QPalette::Text, styleColor);
- QTextOption colorOption(doc->defaultTextOption());
- colorOption.setFlags(QTextOption::SuppressColors);
- doc->setDefaultTextOption(colorOption);
- } else {
- context.palette.setColor(QPalette::Text, color);
- }
- doc->documentLayout()->draw(&p, context);
- if (drawStyle)
- doc->setDefaultTextOption(oldOption);
- return img;
-}
-
-void QDeclarativeTextPrivate::checkImgCache()
-{
- if (!imgDirty)
- return;
-
- bool empty = text.isEmpty();
- QPixmap newImgCache;
- if (empty) {
- imgStyleCache = QPixmap();
- } else if (richText) {
- newImgCache = richTextImage(false);
- if (style != QDeclarativeText::Normal)
- imgStyleCache = richTextImage(true); //### should use styleColor
- } else {
- newImgCache = wrappedTextImage(false);
- if (style != QDeclarativeText::Normal)
- imgStyleCache = wrappedTextImage(true); //### should use styleColor
- }
- imgCache = newImgCache;
- if (!empty)
- switch (style) {
- case QDeclarativeText::Outline:
- drawOutline();
- break;
- case QDeclarativeText::Sunken:
- drawOutline(-1);
- break;
- case QDeclarativeText::Raised:
- drawOutline(1);
- break;
- default:
- break;
- }
-
- imgDirty = false;
-}
-
-void QDeclarativeTextPrivate::ensureDoc()
-{
- if (!doc) {
- Q_Q(QDeclarativeText);
- doc = new QTextDocumentWithImageResources(q);
- doc->setDocumentMargin(0);
- }
-}
-
/*!
Returns the number of resources (images) that are being loaded asynchronously.
*/
@@ -1103,22 +1189,14 @@ int QDeclarativeText::resourcesLoading() const
return d->doc ? d->doc->resourcesLoading() : 0;
}
-/*!
- \qmlproperty bool Text::clip
- This property holds whether the text is clipped.
-
- Note that if the text does not fit in the bounding rectangle it will be abruptly chopped.
-
- If you want to display potentially long text in a limited space, you probably want to use \c elide instead.
-*/
-
+/*! \internal */
void QDeclarativeText::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
{
Q_D(QDeclarativeText);
- if (d->cache || d->style != Normal) {
- d->checkImgCache();
- if (d->imgCache.isNull())
+ if (d->cacheAllTextAsImage || d->style != Normal) {
+ d->checkImageCache();
+ if (d->imageCache.isNull())
return;
bool oldAA = p->testRenderHint(QPainter::Antialiasing);
@@ -1128,23 +1206,23 @@ void QDeclarativeText::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWid
QRect br = boundingRect().toRect();
- bool needClip = clip() && (d->imgCache.width() > width() ||
- d->imgCache.height() > height());
+ bool needClip = clip() && (d->imageCache.width() > width() ||
+ d->imageCache.height() > height());
if (needClip)
- p->drawPixmap(0, 0, width(), height(), d->imgCache, -br.x(), -br.y(), width(), height());
+ p->drawPixmap(0, 0, width(), height(), d->imageCache, -br.x(), -br.y(), width(), height());
else
- p->drawPixmap(br.x(), br.y(), d->imgCache);
+ p->drawPixmap(br.x(), br.y(), d->imageCache);
if (d->smooth) {
p->setRenderHint(QPainter::Antialiasing, oldAA);
p->setRenderHint(QPainter::SmoothPixmapTransform, oldSmooth);
}
} else {
- qreal y = boundingRect().y();
+ QRectF bounds = boundingRect();
- bool needClip = clip() && (d->cachedLayoutSize.width() > width() ||
- d->cachedLayoutSize.height() > height());
+ bool needClip = clip() && (d->layedOutTextSize.width() > width() ||
+ d->layedOutTextSize.height() > height());
if (needClip) {
p->save();
@@ -1153,49 +1231,35 @@ void QDeclarativeText::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWid
if (d->richText) {
QAbstractTextDocumentLayout::PaintContext context;
context.palette.setColor(QPalette::Text, d->color);
- p->translate(0, y);
+ p->translate(bounds.x(), bounds.y());
d->doc->documentLayout()->draw(p, context);
- p->translate(0, -y);
+ p->translate(-bounds.x(), -bounds.y());
} else {
- d->drawWrappedText(p, QPointF(0,y), false);
+ d->drawTextLayout(p, QPointF(0, bounds.y()), false);
}
- if (needClip)
+
+ if (needClip) {
p->restore();
+ }
}
}
-/*!
- \qmlproperty bool Text::smooth
-
- This property holds whether the text is smoothly scaled or transformed.
-
- Smooth filtering gives better visual quality, but is slower. If
- the item is displayed at its natural size, this property has no visual or
- performance effect.
-
- \note Generally scaling artifacts are only visible if the item is stationary on
- the screen. A common pattern when animating an item is to disable smooth
- filtering at the beginning of the animation and reenable it at the conclusion.
-*/
-
+/*! \internal */
void QDeclarativeText::componentComplete()
{
Q_D(QDeclarativeText);
QDeclarativeItem::componentComplete();
- if (d->dirty) {
+ if (d->updateOnComponentComplete) {
+ d->updateOnComponentComplete = false;
if (d->richText) {
d->ensureDoc();
d->doc->setText(d->text);
}
d->updateLayout();
- d->dirty = false;
}
}
-/*!
- \overload
- Handles the given mouse \a event.
- */
+/*! \internal */
void QDeclarativeText::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
Q_D(QDeclarativeText);
@@ -1214,26 +1278,7 @@ void QDeclarativeText::mousePressEvent(QGraphicsSceneMouseEvent *event)
}
-/*!
- \qmlsignal Text::onLinkActivated(string link)
-
- This handler is called when the user clicks on a link embedded in the text.
- The link must be in rich text or HTML format and the
- \a link string provides access to the particular link.
-
- \snippet doc/src/snippets/declarative/text/onLinkActivated.qml 0
-
- The example code will display the text
- "The main website is at \l{http://qt.nokia.com}{Nokia Qt DF}."
-
- Clicking on the highlighted link will output
- \tt{http://qt.nokia.com link activated} to the console.
-*/
-
-/*!
- \overload
- Handles the given mouse \a event.
- */
+/*! \internal */
void QDeclarativeText::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
Q_D(QDeclarativeText);
diff --git a/src/declarative/graphicsitems/qdeclarativetext_p_p.h b/src/declarative/graphicsitems/qdeclarativetext_p_p.h
index db68558..e37f477 100644
--- a/src/declarative/graphicsitems/qdeclarativetext_p_p.h
+++ b/src/declarative/graphicsitems/qdeclarativetext_p_p.h
@@ -74,24 +74,8 @@ public:
~QDeclarativeTextPrivate();
- void ensureDoc();
void updateSize();
void updateLayout();
- void markImgDirty() {
- Q_Q(QDeclarativeText);
- imgDirty = true;
- if (q->isComponentComplete())
- q->update();
- }
- void checkImgCache();
-
- void drawOutline();
- void drawOutline(int yOffset);
-
- QPixmap wrappedTextImage(bool drawStyle);
- void drawWrappedText(QPainter *p, const QPointF &pos, bool drawStyle);
- QPixmap richTextImage(bool drawStyle);
- QSize setupTextLayout();
QString text;
QFont font;
@@ -99,23 +83,37 @@ public:
QDeclarativeText::TextStyle style;
QColor styleColor;
QString activeLink;
- QPixmap imgCache;
- QPixmap imgStyleCache;
QDeclarativeText::HAlignment hAlign;
QDeclarativeText::VAlignment vAlign;
QDeclarativeText::TextElideMode elideMode;
- bool imgDirty:1;
- bool dirty:1;
+ QDeclarativeText::TextFormat format;
+ QDeclarativeText::WrapMode wrapMode;
+
+ void invalidateImageCache();
+ void checkImageCache();
+ QPixmap imageCache;
+
+ bool imageCacheDirty:1;
+ bool updateOnComponentComplete:1;
bool richText:1;
bool singleline:1;
- bool cache:1;
+ bool cacheAllTextAsImage:1;
bool internalWidthUpdate:1;
+
+ QSize layedOutTextSize;
+
+ void ensureDoc();
+ QPixmap textDocumentImage(bool drawStyle);
QTextDocumentWithImageResources *doc;
+
+ QSize setupTextLayout();
+ QPixmap textLayoutImage(bool drawStyle);
+ void drawTextLayout(QPainter *p, const QPointF &pos, bool drawStyle);
QDeclarativeTextLayout layout;
- QSize cachedLayoutSize;
- QDeclarativeText::TextFormat format;
- QDeclarativeText::WrapMode wrapMode;
-
+
+ static QPixmap drawOutline(const QPixmap &source, const QPixmap &styleSource);
+ static QPixmap drawOutline(const QPixmap &source, const QPixmap &styleSource, int yOffset);
+
static inline QDeclarativeTextPrivate *get(QDeclarativeText *t) {
return t->d_func();
}
generated by cgit v0.12 at 2024-11-10 06:45:00 (GMT)