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| author | Samuel Rødal <samuel.rodal@nokia.com> | 2010-06-22 11:24:26 (GMT) |
|---|---|---|
| committer | Samuel Rødal <samuel.rodal@nokia.com> | 2010-06-23 08:45:11 (GMT) |
| commit | fb76a872e20bd0df8e7bbe9c039b7f20423c6f12 (patch) | |
| tree | c01d5f47cad65a056eb6edc1cab11c628b11e2f8 /src/gui/image/qpixmapdata_p.h | |
| parent | eaf886318568bfbd9aa1722586264c8fdf90df12 (diff) | |
| download | Qt-fb76a872e20bd0df8e7bbe9c039b7f20423c6f12.zip Qt-fb76a872e20bd0df8e7bbe9c039b7f20423c6f12.tar.gz Qt-fb76a872e20bd0df8e7bbe9c039b7f20423c6f12.tar.bz2 | |
Optimized sub-rect copying / painting of QPixmaps.
Prevented downloading of the whole XImage by introducing new
QPixmapData::toImage() overload taking a sub-rect. Also avoid an
additional copy by simply taking ownership of the XImage data when
the XImage format matches the QImage format.
Reviewed-by: Trond
Diffstat (limited to 'src/gui/image/qpixmapdata_p.h')
| -rw-r--r-- | src/gui/image/qpixmapdata_p.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/gui/image/qpixmapdata_p.h b/src/gui/image/qpixmapdata_p.h index 60ed26a..9a1505a 100644 --- a/src/gui/image/qpixmapdata_p.h +++ b/src/gui/image/qpixmapdata_p.h @@ -102,6 +102,7 @@ public: virtual void setAlphaChannel(const QPixmap &alphaChannel); virtual QPixmap alphaChannel() const; virtual QImage toImage() const = 0; + virtual QImage toImage(const QRect &rect) const; virtual QPaintEngine* paintEngine() const = 0; inline int serialNumber() const { return ser_no; } |