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| author | Andre de la Rocha <andre.rocha@qt.io> | 2018-09-07 19:16:23 +0200 |
|---|---|---|
| committer | Andre de la Rocha <andre.rocha@qt.io> | 2018-10-25 22:03:23 +0000 |
| commit | 9cd527bc1f384926985d63c741641316a66f17a4 (patch) | |
| tree | bead94ef8e91053650bdb93e87940bd16b8a0022 /src/gui/painting/qpainter.h | |
| parent | 5ea233ca6782eb27adf596515cb66ef3dadc1d5e (diff) | |
Add support for generating PDFs with losslessly encoded images
This patch adds the QPainter::LosslessImageRendering flag to
QPainter::RenderHints and allows QPdfEngine to recognize it and encode
images using a lossless data compression algorithm provided by zlib
instead of using lossy JPEG compression, which can produce artifacts
with some images.
Task-number: QTBUG-54809
Change-Id: If9e2bc64da3bf3afcd5d6c74f0ee82336ef05a19
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Diffstat (limited to 'src/gui/painting/qpainter.h')
| -rw-r--r-- | src/gui/painting/qpainter.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gui/painting/qpainter.h b/src/gui/painting/qpainter.h index 482f5fb63d..87c4899f0b 100644 --- a/src/gui/painting/qpainter.h +++ b/src/gui/painting/qpainter.h @@ -91,7 +91,8 @@ public: SmoothPixmapTransform = 0x04, HighQualityAntialiasing = 0x08, NonCosmeticDefaultPen = 0x10, - Qt4CompatiblePainting = 0x20 + Qt4CompatiblePainting = 0x20, + LosslessImageRendering = 0x40, }; Q_FLAG(RenderHint) |