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Cache standard applet background.

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svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=694542
This commit is contained in:
Thomas Georgiou 2007-07-31 00:21:08 +00:00
parent d66a988732
commit 999cd6ed57
2 changed files with 59 additions and 46 deletions
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104
applet.cpp
View File

@ -71,7 +71,8 @@ public:
kioskImmutable(false),
immutable(false),
hasConfigurationInterface(false),
failed(false)
failed(false),
cachedBackground(0)
{
if (appletId == 0) {
appletId = nextId();
@ -90,6 +91,7 @@ public:
delete background;
delete package;
delete configXml;
delete cachedBackground;
}
void init(Applet* applet)
@ -157,9 +159,8 @@ public:
}
}
void paintBackground(QPainter* p, Applet* q)
void paintBackground(QPainter* p2, Applet* q)
{
//TODO: we should cache this background rather that repaint it over and over
QSize contents = contentSize(q).toSize();
const int contentWidth = contents.width();
const int contentHeight = contents.height();
@ -169,7 +170,7 @@ public:
QPainter* p = new QPainter(&image);
p->setCompositionMode(QPainter::CompositionMode_Source);
#endif
p->setRenderHint(QPainter::SmoothPixmapTransform);
background->resize();
const int topHeight = background->elementSize("top").height();
@ -189,49 +190,60 @@ public:
const int contentTop = 0;
const int contentLeft = 0;
background->paint(p, QRect(leftOffset, topOffset, leftWidth, topHeight), "topleft");
background->paint(p, QRect(rightOffset, topOffset, rightWidth, topHeight), "topright");
background->paint(p, QRect(leftOffset, bottomOffset, leftWidth, bottomHeight), "bottomleft");
background->paint(p, QRect(rightOffset, bottomOffset, rightWidth, bottomHeight), "bottomright");
if (!cachedBackground || cachedBackground->size() != QSize(leftWidth + contentWidth + rightWidth, topHeight + contentHeight + bottomHeight)) {
delete cachedBackground;
cachedBackground = new QPixmap(leftWidth + contentWidth + rightWidth, topHeight + contentHeight + bottomHeight);
cachedBackground->fill(Qt::transparent);
QPainter p(cachedBackground);
p.translate(leftWidth, topHeight);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.setRenderHint(QPainter::SmoothPixmapTransform);
QPixmap left(leftWidth, leftHeight);
left.fill(Qt::transparent);
{
QPainter sidePainter(&left);
sidePainter.setCompositionMode(QPainter::CompositionMode_Source);
background->paint(&sidePainter, QPoint(0, 0), "left");
background->paint(&p, QRect(leftOffset, topOffset, leftWidth, topHeight), "topleft");
background->paint(&p, QRect(rightOffset, topOffset, rightWidth, topHeight), "topright");
background->paint(&p, QRect(leftOffset, bottomOffset, leftWidth, bottomHeight), "bottomleft");
background->paint(&p, QRect(rightOffset, bottomOffset, rightWidth, bottomHeight), "bottomright");
QPixmap left(leftWidth, leftHeight);
left.fill(Qt::transparent);
{
QPainter sidePainter(&left);
sidePainter.setCompositionMode(QPainter::CompositionMode_Source);
background->paint(&sidePainter, QPoint(0, 0), "left");
}
p.drawTiledPixmap(QRect(leftOffset, contentTop, leftWidth, contentHeight), left);
QPixmap right(rightWidth, leftHeight);
right.fill(Qt::transparent);
{
QPainter sidePainter(&right);
sidePainter.setCompositionMode(QPainter::CompositionMode_Source);
background->paint(&sidePainter, QPoint(0, 0), "right");
}
p.drawTiledPixmap(QRect(rightOffset, contentTop, rightWidth, contentHeight), right);
QPixmap top(topWidth, topHeight);
top.fill(Qt::transparent);
{
QPainter sidePainter(&top);
sidePainter.setCompositionMode(QPainter::CompositionMode_Source);
background->paint(&sidePainter, QPoint(0, 0), "top");
}
p.drawTiledPixmap(QRect(contentLeft, topOffset, contentWidth, topHeight), top);
QPixmap bottom(topWidth, bottomHeight);
bottom.fill(Qt::transparent);
{
QPainter sidePainter(&bottom);
sidePainter.setCompositionMode(QPainter::CompositionMode_Source);
background->paint(&sidePainter, QPoint(0, 0), "bottom");
}
p.drawTiledPixmap(QRect(contentLeft, bottomOffset, contentWidth, bottomHeight), bottom);
background->paint(&p, QRect(contentLeft, contentTop, contentWidth + 1, contentHeight + 1), "center");
p.end();
}
p->drawTiledPixmap(QRect(leftOffset, contentTop, leftWidth, contentHeight), left);
QPixmap right(rightWidth, leftHeight);
right.fill(Qt::transparent);
{
QPainter sidePainter(&right);
sidePainter.setCompositionMode(QPainter::CompositionMode_Source);
background->paint(&sidePainter, QPoint(0, 0), "right");
}
p->drawTiledPixmap(QRect(rightOffset, contentTop, rightWidth, contentHeight), right);
QPixmap top(topWidth, topHeight);
top.fill(Qt::transparent);
{
QPainter sidePainter(&top);
sidePainter.setCompositionMode(QPainter::CompositionMode_Source);
background->paint(&sidePainter, QPoint(0, 0), "top");
}
p->drawTiledPixmap(QRect(contentLeft, topOffset, contentWidth, topHeight), top);
QPixmap bottom(topWidth, bottomHeight);
bottom.fill(Qt::transparent);
{
QPainter sidePainter(&bottom);
sidePainter.setCompositionMode(QPainter::CompositionMode_Source);
background->paint(&sidePainter, QPoint(0, 0), "bottom");
}
p->drawTiledPixmap(QRect(contentLeft, bottomOffset, contentWidth, bottomHeight), bottom);
background->paint(p, QRect(contentLeft, contentTop, contentWidth + 1, contentHeight + 1), "center");
p2->drawPixmap(leftOffset, topOffset, *cachedBackground);
}
void paintHover(QPainter* painter, Applet* q)
@ -296,6 +308,8 @@ public:
bool immutable : 1;
bool hasConfigurationInterface : 1;
bool failed : 1;
private:
QPixmap* cachedBackground;
};
uint Applet::Private::s_maxAppletId = 0;

1
applet.h
View File

@ -507,4 +507,3 @@ class PLASMA_EXPORT Applet : public QObject, public Widget
KGenericFactory<classname>("plasma_applet_" #libname))
#endif // multiple inclusion guard