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List:       kde-commits
Subject:    kdenox/konq-embed/kdesrc/khtml/patches
From:       Eva Brucherseifer <eva () kde ! org>
Date:       2006-03-15 18:21:39
Message-ID: 1142446899.247430.14335.nullmailer () svn ! kde ! org
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SVN commit 518934 by eva:

use QImage::smoothScale for image scaling instead of QPixmap.xForm
This is probably slower, but it gives nicer results and preservers the
alpha channel and works for jpgs



 M  +19 -0     image_scaling.patch  


--- trunk/kdenox/konq-embed/kdesrc/khtml/patches/image_scaling.patch #518933:518934
@@ -231,3 +231,22 @@
          _style->setDisplay(BLOCK);
          _style->setVisuallyOrdered( visuallyOrdered );
          // ### make the font stuff _really_ work!!!!
+--- render_image.cpp	2006-03-15 19:17:49.000000000 +0100
++++ render_image.cpp.org	2006-03-15 19:17:27.000000000 +0100
+@@ -305,10 +305,12 @@
+ //                  kdDebug( 6040 ) << "have to scale: " << endl;
+ //                  qDebug("cw=%d ch=%d  pw=%d ph=%d  rcw=%d, rch=%d",
+ //                          cWidth, cHeight, intrinsicWidth(), intrinsicHeight(), \
resizeCache.width(), resizeCache.height()); +-                QWMatrix matrix;
+-                matrix.scale( (float)(cWidth)/intrinsicWidth(),
+-                              (float)(cHeight)/intrinsicHeight() );
+-                resizeCache = pix.xForm( matrix );
++//                QWMatrix matrix;
++//                matrix.scale( (float)(cWidth)/intrinsicWidth(),
++//                              (float)(cHeight)/intrinsicHeight() );
++//                resizeCache = pix.xForm( matrix );
++                QImage qi = pix.convertToImage();
++                resizeCache = qi.smoothScale(cWidth,cHeight);
+                 scaledrect.setWidth( ( cWidth*scaledrect.width() ) / \
intrinsicWidth() ); +                 scaledrect.setHeight( ( \
cHeight*scaledrect.height() ) / intrinsicHeight() ); + //                   \
qDebug("resizeCache size: %d/%d", resizeCache.width(), resizeCache.height());


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