void PictureImage::scaleAndCreatePixmap(const QSize& size, bool fastMode)
{
if ((size == m_cachedSize)
&& ((fastMode) || (!m_cacheIsInFastMode))) {
// The cached pixmap has already the right size
// and:
// - we are in fast mode (We do not care if the re-size was done slowly previously)
// - the re-size was already done in slow mode
return;
}
// Slow mode can be very slow, especially at high zoom levels -> configurable
if (!isSlowResizeModeAllowed()) {
kDebug(30508) << "User has disallowed slow mode!";
fastMode = true;
}
// Use QImage::scale if we have fastMode==true
if (fastMode) {
m_cachedPixmap = QPixmap::fromImage(m_originalImage.scaled(size), Qt::ColorOnly);
// Always color or else B/W can be reversed
m_cacheIsInFastMode = true;
} else {
m_cachedPixmap = QPixmap::fromImage(m_originalImage.scaled(size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation), Qt::ColorOnly);
// Always color or else B/W can be reversed
m_cacheIsInFastMode = false;
}
m_cachedSize = size;
}
void KoPictureEps::scaleAndCreatePixmap(const QSize& size, bool fastMode, const int resolutionx, const int resolutiony )
{
kdDebug(30003) << "KoPictureEps::scaleAndCreatePixmap " << size << " " << (fastMode?QString("fast"):QString("slow"))
<< " resolutionx: " << resolutionx << " resolutiony: " << resolutiony << endl;
if ((size==m_cachedSize)
&& ((fastMode) || (!m_cacheIsInFastMode)))
{
// The cached pixmap has already the right size
// and:
// - we are in fast mode (We do not care if the re-size was done slowly previously)
// - the re-size was already done in slow mode
kdDebug(30003) << "Already cached!" << endl;
return;
}
// Slow mode can be very slow, especially at high zoom levels -> configurable
if ( !isSlowResizeModeAllowed() )
{
kdDebug(30003) << "User has disallowed slow mode!" << endl;
fastMode = true;
}
// We cannot use fast mode, if nothing was ever cached.
if ( fastMode && !m_cachedSize.isEmpty())
{
kdDebug(30003) << "Fast scaling!" << endl;
// Slower than caching a QImage, but faster than re-sampling!
QImage image( m_cachedPixmap.convertToImage() );
m_cachedPixmap=image.scale( size );
m_cacheIsInFastMode=true;
m_cachedSize=size;
}
else
{
QTime time;
time.start();
QApplication::setOverrideCursor( Qt::waitCursor );
m_cachedPixmap = scaleWithGhostScript( size, resolutionx, resolutiony );
QApplication::restoreOverrideCursor();
m_cacheIsInFastMode=false;
m_cachedSize=size;
kdDebug(30003) << "Time: " << (time.elapsed()/1000.0) << " s" << endl;
}
kdDebug(30003) << "New size: " << size << endl;
}
