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Code Issues Releases Wiki Activity

(trunk qt) #3393 "SqueezeLabel implementation eats CPU" -- fixed

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This commit is contained in:
Charles Kerr 2010-07-05 18:29:40 +00:00
parent e35eaf06ac
commit ee725c7453
2 changed files with 15 additions and 17 deletions
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29
qt/squeezelabel.cc
View file

@ -39,15 +39,19 @@
**
****************************************************************************/
#include <QPainter>
#include <QResizeEvent>
#include <QStyle>
#include <QStyleOption>
#include "squeezelabel.h"
void
SqueezeLabel::init()
void SqueezeLabel::init()
{
setTextInteractionFlags( Qt::TextSelectableByMouse );
setTextInteractionFlags(Qt::TextSelectableByMouse);
}
SqueezeLabel::SqueezeLabel(const QString& text, QWidget *parent) : QLabel(text, parent)
SqueezeLabel::SqueezeLabel(const QString& text, QWidget *parent): QLabel(text, parent)
{
init();
}
@ -57,17 +61,12 @@ SqueezeLabel::SqueezeLabel(QWidget *parent) : QLabel(parent)
init();
}
void SqueezeLabel::paintEvent(QPaintEvent *event)
void SqueezeLabel::paintEvent(QPaintEvent* paintEvent)
{
QPainter painter(this);
QFontMetrics fm = fontMetrics();
if (fm.width(text()) > contentsRect().width()) {
QString elided = fm.elidedText(text(), Qt::ElideMiddle, width());
QString oldText = text();
setText(elided);
QLabel::paintEvent(event);
setText(oldText);
} else {
QLabel::paintEvent(event);
}
QStyleOption opt;
opt.initFrom(this);
const QString elidedText = fm.elidedText( text(), Qt::ElideMiddle, width());
style()->drawItemText(&painter, contentsRect(), alignment(), opt.palette, isEnabled(), elidedText, foregroundRole());
}

3
qt/squeezelabel.h
View file

@ -54,8 +54,7 @@ public:
protected:
void init();
void paintEvent(QPaintEvent *event);
void paintEvent(QPaintEvent* paintEvent);
};
#endif // SQUEEZELABEL_H