summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--src/gui/painting/qpainter.cpp42
-rw-r--r--src/gui/painting/qpainter.h6
-rw-r--r--src/gui/text/qstatictext.cpp86
-rw-r--r--src/gui/text/qstatictext.h6
-rw-r--r--src/gui/text/qstatictext_p.h7
-rw-r--r--tests/auto/qstatictext/tst_qstatictext.cpp51
6 files changed, 109 insertions, 89 deletions
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index ac5c8b7..7856881 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -5762,19 +5762,24 @@ void QPainterPrivate::drawGlyphs(const quint32 *glyphArray, const QPointF *posit
/*!
- \fn void QPainter::drawStaticText(const QPoint &position, const QStaticText &staticText)
+ \fn void QPainter::drawStaticText(const QPoint &topLeftPosition, const QStaticText &staticText)
\since 4.7
\overload
- Draws the \a staticText at the \a position.
+ Draws the \a staticText at the \a topLeftPosition.
+
+ \note The y-position is used as the top of the font.
+
*/
/*!
- \fn void QPainter::drawStaticText(int x, int y, const QStaticText &staticText)
+ \fn void QPainter::drawStaticText(int left, int top, const QStaticText &staticText)
\since 4.7
\overload
- Draws the \a staticText at coordinates \a x and \a y.
+ Draws the \a staticText at coordinates \a left and \a top.
+
+ \note The y-position is used as the top of the font.
*/
/*!
@@ -5802,7 +5807,7 @@ void QPainter::drawText(const QPointF &p, const QString &str)
/*!
\since 4.7
- Draws the given \a staticText at the given \a position.
+ Draws the given \a staticText at the given \a topLeftPosition.
The text will be drawn using the font and the transformation set on the painter. If the
font and/or transformation set on the painter are different from the ones used to initialize
@@ -5810,15 +5815,17 @@ void QPainter::drawText(const QPointF &p, const QString &str)
QStaticText::prepare() to initialize \a staticText with the font and transformation with which
it will later be drawn.
- If \a position is not the same as when \a staticText was initialized, or when it was last drawn,
- then there will be a slight overhead when translating the text to its new position.
+ If \a topLeftPosition is not the same as when \a staticText was initialized, or when it was
+ last drawn, then there will be a slight overhead when translating the text to its new position.
- \note If the painter's transformation is not affine, then \a staticText will be drawn using regular
- calls to drawText(), losing any potential performance improvement.
+ \note If the painter's transformation is not affine, then \a staticText will be drawn using
+ regular calls to drawText(), losing any potential for performance improvement.
+
+ \note The y-position is used as the top of the font.
\sa QStaticText
*/
-void QPainter::drawStaticText(const QPointF &position, const QStaticText &staticText)
+void QPainter::drawStaticText(const QPointF &topLeftPosition, const QStaticText &staticText)
{
Q_D(QPainter);
if (!d->engine || staticText.text().isEmpty() || pen().style() == Qt::NoPen)
@@ -5830,13 +5837,13 @@ void QPainter::drawStaticText(const QPointF &position, const QStaticText &static
// If we don't have an extended paint engine, or if the painter is projected,
// we go through standard code path
if (d->extended == 0 || !d->state->matrix.isAffine()) {
- staticText_d->paintText(position, this);
+ staticText_d->paintText(topLeftPosition, this);
return;
}
// Don't recalculate entire layout because of translation, rather add the dx and dy
// into the position to move each text item the correct distance.
- QPointF transformedPosition = position * d->state->matrix;
+ QPointF transformedPosition = topLeftPosition * d->state->matrix;
QTransform matrix = d->state->matrix;
// The translation has been applied to transformedPosition. Remove translation
@@ -5863,14 +5870,6 @@ void QPainter::drawStaticText(const QPointF &position, const QStaticText &static
staticTextNeedsReinit = true;
}
- bool restoreWhenFinished = false;
- if (staticText_d->needsClipRect) {
- save();
- setClipRect(QRectF(position, staticText_d->maximumSize));
-
- restoreWhenFinished = true;
- }
-
if (font() != staticText_d->font) {
staticText_d->font = font();
staticTextNeedsReinit = true;
@@ -5910,9 +5909,6 @@ void QPainter::drawStaticText(const QPointF &position, const QStaticText &static
if (currentColor != oldPen.color())
setPen(oldPen);
- if (restoreWhenFinished)
- restore();
-
if (matrix.isTranslating())
d->state->matrix = matrix;
}
diff --git a/src/gui/painting/qpainter.h b/src/gui/painting/qpainter.h
index 443925b..edfb67e 100644
--- a/src/gui/painting/qpainter.h
+++ b/src/gui/painting/qpainter.h
@@ -396,9 +396,9 @@ public:
void setLayoutDirection(Qt::LayoutDirection direction);
Qt::LayoutDirection layoutDirection() const;
- void drawStaticText(const QPointF &p, const QStaticText &staticText);
- inline void drawStaticText(const QPoint &p, const QStaticText &staticText);
- inline void drawStaticText(int x, int y, const QStaticText &staticText);
+ void drawStaticText(const QPointF &topLeftPosition, const QStaticText &staticText);
+ inline void drawStaticText(const QPoint &topLeftPosition, const QStaticText &staticText);
+ inline void drawStaticText(int left, int top, const QStaticText &staticText);
void drawText(const QPointF &p, const QString &s);
inline void drawText(const QPoint &p, const QString &s);
diff --git a/src/gui/text/qstatictext.cpp b/src/gui/text/qstatictext.cpp
index f433c78..977355e 100644
--- a/src/gui/text/qstatictext.cpp
+++ b/src/gui/text/qstatictext.cpp
@@ -143,11 +143,10 @@ QStaticText::QStaticText()
If an invalid size is passed for \a size the text will be unbounded.
*/
-QStaticText::QStaticText(const QString &text, const QSizeF &size)
+QStaticText::QStaticText(const QString &text)
: data(new QStaticTextPrivate)
{
data->text = text;
- data->maximumSize = size;
data->init();
}
@@ -209,7 +208,7 @@ QStaticText &QStaticText::operator=(const QStaticText &other)
}
/*!
- Compares \a other to this QStaticText. Returns true if the texts, fonts and maximum sizes
+ Compares \a other to this QStaticText. Returns true if the texts, fonts and text widths
are equal.
*/
bool QStaticText::operator==(const QStaticText &other) const
@@ -217,7 +216,7 @@ bool QStaticText::operator==(const QStaticText &other) const
return (data == other.data
|| (data->text == other.data->text
&& data->font == other.data->font
- && data->maximumSize == other.data->maximumSize));
+ && data->textWidth == other.data->textWidth));
}
/*!
@@ -315,33 +314,39 @@ QStaticText::PerformanceHint QStaticText::performanceHint() const
}
/*!
- Sets the maximum size of the QStaticText to \a size.
+ Sets the preferred width for this QStaticText. If the text is wider than the specified width,
+ it will be broken into multiple lines and grow vertically. If the text cannot be split into
+ multiple lines, it will be larger than the specified \a textWidth.
+
+ Setting the preferred text width to a negative number will cause the text to be unbounded.
+
+ Use size() to get the actual size of the text.
\note This function will cause the layout of the text to be recalculated.
- \sa maximumSize(), size()
+ \sa textWidth(), size()
*/
-void QStaticText::setMaximumSize(const QSizeF &size)
+void QStaticText::setTextWidth(qreal textWidth)
{
detach();
- data->maximumSize = size;
+ data->textWidth = textWidth;
data->init();
}
/*!
- Returns the maximum size of the QStaticText.
+ Returns the preferred width for this QStaticText.
- \sa setMaximumSize()
+ \sa setTextWidth()
*/
-QSizeF QStaticText::maximumSize() const
+qreal QStaticText::textWidth() const
{
- return data->maximumSize;
+ return data->textWidth;
}
/*!
Returns the size of the bounding rect for this QStaticText.
- \sa maximumSize()
+ \sa textWidth()
*/
QSizeF QStaticText::size() const
{
@@ -349,14 +354,14 @@ QSizeF QStaticText::size() const
}
QStaticTextPrivate::QStaticTextPrivate()
- : items(0), itemCount(0), glyphPool(0), positionPool(0), needsClipRect(false),
+ : items(0), itemCount(0), glyphPool(0), positionPool(0), textWidth(-1.0),
useBackendOptimizations(false), textFormat(Qt::AutoText)
{
}
QStaticTextPrivate::QStaticTextPrivate(const QStaticTextPrivate &other)
- : text(other.text), font(other.font), maximumSize(other.maximumSize), matrix(other.matrix),
- items(0), itemCount(0), glyphPool(0), positionPool(0), needsClipRect(false),
+ : text(other.text), font(other.font), textWidth(other.textWidth), matrix(other.matrix),
+ items(0), itemCount(0), glyphPool(0), positionPool(0),
useBackendOptimizations(other.useBackendOptimizations), textFormat(other.textFormat)
{
}
@@ -539,43 +544,50 @@ namespace {
};
}
-void QStaticTextPrivate::paintText(const QPointF &pos, QPainter *p)
+void QStaticTextPrivate::paintText(const QPointF &topLeftPosition, QPainter *p)
{
bool preferRichText = textFormat == Qt::RichText
|| (textFormat == Qt::AutoText && Qt::mightBeRichText(text));
if (!preferRichText) {
- if (maximumSize.isValid()) {
- QRectF boundingRect;
- p->drawText(QRectF(pos, maximumSize), Qt::TextWordWrap, text, &boundingRect);
-
- actualSize = boundingRect.size();
- needsClipRect = boundingRect.width() > maximumSize.width()
- || boundingRect.height() > maximumSize.height();
- } else {
- p->drawText(pos, text);
- needsClipRect = false;
-
- QFontMetrics fm(font);
- actualSize = fm.boundingRect(text).size();
+ QTextLayout textLayout;
+ textLayout.setText(text);
+ textLayout.setFont(font);
+
+ qreal leading = QFontMetricsF(font).leading();
+ qreal height = -leading;
+
+ textLayout.beginLayout();
+ while (1) {
+ QTextLine line = textLayout.createLine();
+ if (!line.isValid())
+ break;
+
+ if (textWidth >= 0.0)
+ line.setLineWidth(textWidth);
+ height += leading;
+ line.setPosition(QPointF(0.0, height));
+ height += line.height();
}
+ textLayout.endLayout();
+
+ actualSize = textLayout.boundingRect().size();
+ textLayout.draw(p, topLeftPosition);
} else {
QTextDocument document;
document.setDefaultFont(font);
document.setDocumentMargin(0.0);
+ if (textWidth >= 0.0)
+ document.setTextWidth(textWidth);
document.setHtml(text);
- QPointF adjustedPos = pos - QPointF(0, QFontMetricsF(font).ascent());
- QRectF rect = maximumSize.isValid() ? QRectF(adjustedPos, maximumSize) : QRectF();
document.adjustSize();
p->save();
- p->translate(adjustedPos);
- document.drawContents(p, rect);
+ p->translate(topLeftPosition);
+ document.drawContents(p);
p->restore();
+
actualSize = document.size();
- needsClipRect = maximumSize.isValid()
- && (actualSize.width() > maximumSize.width()
- || actualSize.height() > maximumSize.height());
}
}
diff --git a/src/gui/text/qstatictext.h b/src/gui/text/qstatictext.h
index 00d42e0..c37194c 100644
--- a/src/gui/text/qstatictext.h
+++ b/src/gui/text/qstatictext.h
@@ -66,7 +66,7 @@ public:
};
QStaticText();
- QStaticText(const QString &text, const QSizeF &maximumSize = QSizeF());
+ QStaticText(const QString &text);
QStaticText(const QStaticText &other);
~QStaticText();
@@ -76,8 +76,8 @@ public:
void setTextFormat(Qt::TextFormat textFormat);
Qt::TextFormat textFormat() const;
- void setMaximumSize(const QSizeF &maximumSize);
- QSizeF maximumSize() const;
+ void setTextWidth(qreal textWidth);
+ qreal textWidth() const;
QSizeF size() const;
diff --git a/src/gui/text/qstatictext_p.h b/src/gui/text/qstatictext_p.h
index e758244..3bbc61f 100644
--- a/src/gui/text/qstatictext_p.h
+++ b/src/gui/text/qstatictext_p.h
@@ -122,7 +122,7 @@ public:
QString text; // 4 bytes per text
QFont font; // 8 bytes per text
- QSizeF maximumSize; // 16 bytes per text
+ qreal textWidth; // 8 bytes per text
QSizeF actualSize; // 16 bytes per text
QPointF position; // 16 bytes per text
@@ -132,11 +132,10 @@ public:
glyph_t *glyphPool; // 4 bytes per text
QFixedPoint *positionPool; // 4 bytes per text
- unsigned char needsClipRect : 1; // 1 byte per text
- unsigned char useBackendOptimizations : 1;
+ unsigned char useBackendOptimizations : 1; // 1 byte per text
unsigned char textFormat : 2;
// ================
- // 171 bytes per text
+ // 163 bytes per text
static QStaticTextPrivate *get(const QStaticText *q);
};
diff --git a/tests/auto/qstatictext/tst_qstatictext.cpp b/tests/auto/qstatictext/tst_qstatictext.cpp
index b59c10b..4e2d906 100644
--- a/tests/auto/qstatictext/tst_qstatictext.cpp
+++ b/tests/auto/qstatictext/tst_qstatictext.cpp
@@ -50,7 +50,7 @@
#include <private/qstatictext_p.h>
#include <private/qapplication_p.h>
-// #define DEBUG_SAVE_IMAGE
+#define DEBUG_SAVE_IMAGE
class tst_QStaticText: public QObject
{
@@ -69,7 +69,7 @@ private slots:
void drawToRect_data();
void drawToRect();
void setFont();
- void setMaximumSize();
+ void setTextWidth();
void prepareToCorrectData();
void prepareToWrongData();
@@ -127,7 +127,7 @@ void tst_QStaticText::drawToPoint()
QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
text.setTextFormat(Qt::PlainText);
text.setPerformanceHint(performanceHint);
- p.drawStaticText(QPointF(11, 12), text);
+ p.drawStaticText(QPointF(11, 12 - QFontMetricsF(p.font()).ascent()), text);
}
QCOMPARE(imageDrawStaticText, imageDrawText);
@@ -156,12 +156,19 @@ void tst_QStaticText::drawToRect()
imageDrawStaticText.fill(Qt::white);
{
QPainter p(&imageDrawStaticText);
- QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.", QSizeF(10, 500));
+ QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
+ text.setTextWidth(10),
+ p.setClipRect(QRectF(11, 12, 10, 500));
text.setPerformanceHint(performanceHint);
text.setTextFormat(Qt::PlainText);
p.drawStaticText(QPointF(11, 12), text);
}
+#if defined(DEBUG_SAVE_IMAGE)
+ imageDrawText.save("drawToRect_imageDrawText.png");
+ imageDrawStaticText.save("drawToRect_imageDrawStaticText.png");
+#endif
+
QCOMPARE(imageDrawStaticText, imageDrawText);
}
@@ -187,7 +194,7 @@ void tst_QStaticText::prepareToCorrectData()
QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
text.prepare(transform, p.font());
text.setTextFormat(Qt::PlainText);
- p.drawStaticText(QPointF(11, 12), text);
+ p.drawStaticText(QPointF(11, 12 - QFontMetricsF(p.font()).ascent()), text);
}
if (!supportsTransformations())
@@ -215,7 +222,7 @@ void tst_QStaticText::prepareToWrongData()
QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
text.prepare(transform, p.font());
text.setTextFormat(Qt::PlainText);
- p.drawStaticText(QPointF(11, 12), text);
+ p.drawStaticText(QPointF(11, 12 - QFontMetricsF(p.font()).ascent()), text);
}
QCOMPARE(imageDrawStaticText, imageDrawText);
@@ -232,10 +239,10 @@ void tst_QStaticText::setFont()
imageDrawText.fill(Qt::white);
{
QPainter p(&imageDrawText);
- p.drawText(0, 0, "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
+ p.drawText(0, 0 + QFontMetrics(p.font()).ascent(), "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
p.setFont(font);
- p.drawText(11, 120, "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
+ p.drawText(11, 120 + QFontMetrics(p.font()).ascent(), "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
}
QPixmap imageDrawStaticText(1000, 1000);
@@ -253,10 +260,15 @@ void tst_QStaticText::setFont()
p.drawStaticText(11, 120, text);
}
+#if defined(DEBUG_SAVE_IMAGE)
+ imageDrawText.save("setFont_imageDrawText.png");
+ imageDrawStaticText.save("setFont_imageDrawStaticText.png");
+#endif
+
QCOMPARE(imageDrawStaticText, imageDrawText);
}
-void tst_QStaticText::setMaximumSize()
+void tst_QStaticText::setTextWidth()
{
QPixmap imageDrawText(1000, 1000);
imageDrawText.fill(Qt::white);
@@ -270,7 +282,8 @@ void tst_QStaticText::setMaximumSize()
{
QPainter p(&imageDrawStaticText);
QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
- text.setMaximumSize(QSizeF(10, 500));
+ text.setTextWidth(10);
+ p.setClipRect(QRectF(11, 12, 10, 500));
p.drawStaticText(QPointF(11, 12), text);
}
@@ -297,7 +310,7 @@ void tst_QStaticText::translatedPainter()
QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
text.setTextFormat(Qt::PlainText);
- p.drawStaticText(QPointF(11, 12), text);
+ p.drawStaticText(QPointF(11, 12 - QFontMetricsF(p.font()).ascent()), text);
}
QCOMPARE(imageDrawStaticText, imageDrawText);
@@ -329,7 +342,7 @@ void tst_QStaticText::rotatedPainter()
{
QPainter p(&imageDrawText);
p.rotate(30.0);
- p.drawText(0, 0, "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
+ p.drawText(0, 0 + QFontMetricsF(p.font()).ascent(), "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
}
QPixmap imageDrawStaticText(1000, 1000);
@@ -373,7 +386,7 @@ void tst_QStaticText::scaledPainter()
QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
text.setTextFormat(Qt::PlainText);
- p.drawStaticText(QPointF(11, 12), text);
+ p.drawStaticText(QPointF(11, 12 - QFontMetricsF(p.font()).ascent()), text);
}
if (!supportsTransformations())
@@ -404,7 +417,7 @@ void tst_QStaticText::projectedPainter()
QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
text.setTextFormat(Qt::PlainText);
- p.drawStaticText(QPointF(11, 12), text);
+ p.drawStaticText(QPointF(11, 12 - QFontMetricsF(p.font()).ascent()), text);
}
QCOMPARE(imageDrawStaticText, imageDrawText);
@@ -434,7 +447,7 @@ void tst_QStaticText::rotatedScaledAndTranslatedPainter()
QStaticText text("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
text.setTextFormat(Qt::PlainText);
- p.drawStaticText(QPointF(11, 12), text);
+ p.drawStaticText(QPointF(11, 12 - QFontMetricsF(p.font()).ascent()), text);
}
#if defined(DEBUG_SAVE_IMAGE)
@@ -456,10 +469,10 @@ void tst_QStaticText::transformationChanged()
p.rotate(33.0);
p.scale(0.5, 0.7);
- p.drawText(0, 0, "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
+ p.drawText(0, 0 + QFontMetricsF(p.font()).ascent(), "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
p.scale(7.0, 5.0);
- p.drawText(0, 0, "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
+ p.drawText(0, 0 + QFontMetricsF(p.font()).ascent(), "Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
}
QPixmap imageDrawStaticText(1000, 1000);
@@ -566,7 +579,7 @@ void tst_QStaticText::setPenRichText()
QStaticText staticText;
staticText.setText("<html><body>XXXXX</body></html>");
staticText.setTextFormat(Qt::RichText);
- p.drawStaticText(0, fm.ascent(), staticText);
+ p.drawStaticText(0, 0, staticText);
}
QImage img = image.toImage();
@@ -595,7 +608,7 @@ void tst_QStaticText::richTextOverridesPen()
QStaticText staticText;
staticText.setText("<html><body><font color=\"#ff0000\">XXXXX</font></body></html>");
staticText.setTextFormat(Qt::RichText);
- p.drawStaticText(0, fm.ascent(), staticText);
+ p.drawStaticText(0, 0, staticText);
}
QImage img = image.toImage();
generated by cgit v0.12 at 2024-11-26 20:11:07 (GMT)