diff options
Diffstat (limited to 'src/gui')
-rw-r--r-- | src/gui/painting/qpaintengine_raster.cpp | 5 | ||||
-rw-r--r-- | src/gui/painting/qpainter.cpp | 10 |
2 files changed, 14 insertions, 1 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp index 6336b2943e..e0dd789dfd 100644 --- a/src/gui/painting/qpaintengine_raster.cpp +++ b/src/gui/painting/qpaintengine_raster.cpp @@ -2502,10 +2502,13 @@ void QRasterPaintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, if (image.depth() == 1) image = d->rasterBuffer->colorizeBitmap(image, s->pen.color()); - if (s->matrix.type() > QTransform::TxTranslate) { + const qreal pixmapDevicePixelRatio = pixmap.devicePixelRatio(); + if (s->matrix.type() > QTransform::TxTranslate || pixmapDevicePixelRatio > qreal(1.0)) { QTransform copy = s->matrix; copy.translate(r.x(), r.y()); copy.translate(-sr.x(), -sr.y()); + const qreal inverseDpr = qreal(1.0) / pixmapDevicePixelRatio; + copy.scale(inverseDpr, inverseDpr); d->image_filler_xform.clip = d->clip(); d->image_filler_xform.initTexture(&image, s->intOpacity, QTextureData::Tiled); if (!d->image_filler_xform.blend) diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp index a0a58cc157..a37511ff0a 100644 --- a/src/gui/painting/qpainter.cpp +++ b/src/gui/painting/qpainter.cpp @@ -6664,6 +6664,16 @@ QRectF QPainter::boundingRect(const QRectF &r, const QString &text, const QTextO potentially much more efficient depending on the underlying window system. + drawTiledPixmap() will produce the same visual tiling pattern on + high-dpi displays (with devicePixelRatio > 1), compared to normal- + dpi displays. Set the devicePixelRatio on the \a pixmap to control + the tile size. For example, setting it to 2 halves the tile width + and height (on both 1x and 2x displays), and produces high-resolution + output on 2x displays. + + The \a position offset is always in the painter coordinate system, + indepentent of display devicePixelRatio. + \sa drawPixmap() */ void QPainter::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &sp) |