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Fixed findInCache bug. Now findInCache is faster, thanks to bibr.

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svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=796500
This commit is contained in:
Davide Bettio 2008-04-13 17:27:02 +00:00
parent 871b7fe9e6
commit 90999c00d6
1 changed files with 52 additions and 17 deletions
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69
svg.cpp
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@ -118,11 +118,32 @@ class Svg::Private
ids.clear();
}
void findInCache(QPixmap& p, const QString& elementId)
void findInCache(QPixmap& p, const QString& elementId, const QPainter *itemPainter, const QSizeF &size = QSizeF())
{
QSizeF localSize;
if (elementId.isEmpty() || contentType == Svg::ImageSet) {
localSize = size;
} else {
localSize = elementSize(elementId);
}
if (localSize.isEmpty())
return;
QTransform transform = itemPainter->worldTransform();
if (size.isValid()) {
transform.scale(size.width() / localSize.width(),
size.height() / localSize.height());
}
createRenderer();
QString id = QString::fromLatin1("%3_%2_%1_").arg(size.width())
QLineF v1 = transform.map(QLineF(0, 0, 1, 0));
QLineF v2 = transform.map(QLineF(0, 0, 0, 1));
QString id = QString::fromLatin1("%7_%6_%5_%4_%3_%2_%1").arg(size.width())
.arg(size.height())
.arg((int) v1.dx())
.arg((int) v1.dy())
.arg((int) v2.dx())
.arg((int) v2.dy())
.arg(path);
if (!elementId.isEmpty()) {
@ -141,19 +162,22 @@ class Svg::Private
//kDebug() << "didn't find cached version of " << id << ", so re-rendering";
}
// we have to re-render this puppy
QSize s;
if (elementId.isEmpty() || contentType == Svg::ImageSet) {
s = size.toSize();
} else {
s = elementSize(elementId);
}
//kDebug() << "size for " << elementId << " is " << s;
QRect deviceRect = transform.mapRect(QRectF(QPointF(), localSize)).toRect();
if (deviceRect.isEmpty())
return;
p = QPixmap(s);
p = QPixmap(deviceRect.size());
p.fill(Qt::transparent);
QPainter renderPainter(&p);
QPointF tl = deviceRect.topLeft();
QTransform xform = QTransform().translate(-tl.x(), -tl.y());
xform = itemPainter->worldTransform() * xform;
renderPainter.setRenderHints(renderPainter.renderHints(), false);
renderPainter.setRenderHints(itemPainter->renderHints(), true);
renderPainter.setWorldTransform(xform, true);
if (elementId.isEmpty()) {
renderer->render(&renderPainter);
} else {
@ -170,7 +194,7 @@ class Svg::Private
}
if (!QPixmapCache::insert( id, p )) {
kDebug() << "pixmap cache is too small for inserting" << id << "of size" << s;
//kDebug() << "pixmap cache is too small for inserting" << id << "of size" << s;
}
}
@ -264,9 +288,15 @@ Svg::~Svg()
void Svg::paint(QPainter* painter, const QPointF& point, const QString& elementID)
{
QPixmap pix;
d->findInCache(pix, elementID);
d->findInCache(pix, elementID, painter);
if (pix.isNull())
return;
painter->save();
QTransform x = painter->worldTransform();
painter->setWorldTransform(QTransform(), false);
//kDebug() << "pix size is " << pix.size();
painter->drawPixmap(QRectF(point, pix.size()), pix, QRectF(QPointF(0,0), pix.size()));
painter->drawPixmap(x.map(point), pix);
painter->restore();
}
void Svg::paint(QPainter* painter, int x, int y, const QString& elementID)
@ -277,9 +307,14 @@ void Svg::paint(QPainter* painter, int x, int y, const QString& elementID)
void Svg::paint(QPainter* painter, const QRectF& rect, const QString& elementID)
{
QPixmap pix;
d->findInCache(pix, elementID);
//kDebug() << "pix size is " << pix.size();
painter->drawPixmap(rect, pix, QRectF(QPointF(0,0), pix.size()));
d->findInCache(pix, elementID, painter, rect.size());
if (pix.isNull())
return;
painter->save();
QTransform x = painter->worldTransform();
painter->setWorldTransform(QTransform());
painter->drawPixmap(x.map(rect.topLeft()) , pix);
painter->restore();
}
void Svg::resize( int width, int height )