diff options
author | Morten Johan Sørvig <morten.sorvig@digia.com> | 2012-11-20 11:34:52 +0100 |
---|---|---|
committer | The Qt Project <gerrit-noreply@qt-project.org> | 2012-12-01 08:33:20 +0100 |
commit | 5e61bbe586519c3d9bc636153d32e810da4e59a3 (patch) | |
tree | 67d67ef644be72ee5b3d685c9a22538d7ec1e01d /src/gui/image/qimage.h | |
parent | c8dc41bacdc30026cb79d0d6c72255312084bfe3 (diff) |
Basic high-dpi "retina" support for Qt 5.
Bring Qt 5 on par with Qt 4, prepare for more comprehensive
support later on.
Introduce device independent pixels (dips), device pixels,
and devicePixelRatio. Add high-dpi support to QPainter,
QGLWidget, the cocoa platform plugin, mac and fusion styles.
Dips are similar to CSS pixels, Apple points and
Android density-independent pixels. Device pixels
are pixels in the backing store/physical pixels on screen.
devicePixelRatio is the ratio between them, which is
1.0 on standard displays and 2.0 on "retina" displays.
New API:
QImage::devicePixelRatio() and setDevicePixelRatio()
QPixmap::devicePixelRatio() and setDevicePixelRatio()
QWindow::devicePixelRatio()
QScreen::devicePixelRatio()
QGuiApplicaiton::devicePixelRatio()
Change-Id: If98c3ca9bfdf0e1bdbcf7574cd5b912c9ff63856
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Diffstat (limited to 'src/gui/image/qimage.h')
-rw-r--r-- | src/gui/image/qimage.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gui/image/qimage.h b/src/gui/image/qimage.h index 0356c1cab1..304d54a378 100644 --- a/src/gui/image/qimage.h +++ b/src/gui/image/qimage.h @@ -211,6 +211,9 @@ public: QVector<QRgb> colorTable() const; void setColorTable(const QVector<QRgb> colors); + qreal devicePixelRatio() const; + void setDevicePixelRatio(qreal scaleFactor); + void fill(uint pixel); void fill(const QColor &color); void fill(Qt::GlobalColor color); |