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have the tooltip inform the widget that it's about to tip so last second updates can be made, particularly nice for expensive tooltips

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svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=786834
This commit is contained in:
Aaron J. Seigo 2008-03-18 01:39:28 +00:00
parent 124f1da013
commit abf654c5c5
3 changed files with 13 additions and 1 deletions
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1
widgets/tooltip.cpp
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@ -135,6 +135,7 @@ void ToolTip::showToolTip()
return; return;
} }
d->currentWidget->updateToolTip();
setData(*d->currentWidget->toolTip()); setData(*d->currentWidget->toolTip());
if( d->windowToPreview != 0 ) { if( d->windowToPreview != 0 ) {

4
widgets/widget.cpp
View File

@ -398,6 +398,10 @@ void Widget::setToolTip(const ToolTipData &tip)
} }
} }
void Widget::updateToolTip()
{
}
void Widget::paintWidget(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) void Widget::paintWidget(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{ {
Q_UNUSED(painter); Q_UNUSED(painter);

7
widgets/widget.h
View File

@ -279,6 +279,13 @@ public:
*/ */
void setToolTip(const ToolTipData &dt); void setToolTip(const ToolTipData &dt);
/**
* Called when the tooltip data should be updated, e.g. right before
* a tooltip is shown. This allows tips that are more expensive to
* create ahead of time to be set at the last possible moment.
*/
virtual void updateToolTip();
/** /**
* Recomended position for a popup window like a menu or a tooltip * Recomended position for a popup window like a menu or a tooltip
* given its size * given its size