kde/dolphin
kde/dolphin
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don't use the expensive QPixmap::setAlphaChannel() (see http://techbase.kde.org/Development/Tutorials/Graphics/Performance)

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svn path=/trunk/KDE/kdebase/apps/; revision=854487
This commit is contained in:
Peter Penz 2008-08-29 16:12:56 +00:00
parent 07458af20c
commit dbbc9ef885
1 changed files with 11 additions and 17 deletions
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28
dolphin/src/iconmanager.cpp
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@ -462,29 +462,23 @@ bool IconManager::applyImageFrame(QPixmap& icon)
// add a border
painter.setPen(palette.color(QPalette::Text));
painter.setBrush(Qt::NoBrush);
painter.drawRect(0, 0, width, height);
painter.drawRect(1, 1, width - 2, height - 2);
// dim image frame by 12.5 %
painter.setPen(QColor(0, 0, 0, 32));
painter.drawRect(frame, frame, width - doubleFrame, height - doubleFrame);
painter.setCompositionMode(QPainter::CompositionMode_Plus);
QColor blendColor = palette.color(QPalette::Normal, QPalette::Base);
blendColor.setAlpha(255 - 32);
painter.setPen(blendColor);
painter.drawRect(0, 0, width, height);
blendColor.setAlpha(255 - 64);
painter.setPen(blendColor);
painter.drawRect(1, 1, width - 2, height - 2);
painter.end();
icon = framedIcon;
// provide an alpha channel for the border
QPixmap alphaChannel(icon.size());
alphaChannel.fill();
QPainter alphaPainter(&alphaChannel);
alphaPainter.setBrush(Qt::NoBrush);
alphaPainter.setPen(QColor(32, 32, 32));
alphaPainter.drawRect(0, 0, width, height);
alphaPainter.setPen(QColor(64, 64, 64));
alphaPainter.drawRect(1, 1, width - 2, height - 2);
icon.setAlphaChannel(alphaChannel);
return true;
}