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author | Shawn Rutledge <shawn.rutledge@qt.io> | 2017-09-14 15:12:56 +0200 |
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committer | Shawn Rutledge <shawn.rutledge@qt.io> | 2017-09-15 12:13:51 +0000 |
commit | 0d51767b5d20e255181bda1dd83d25c5a7777465 (patch) | |
tree | d0f76a2b3f553b1c1abfc9999e8ba89d573e811d /examples/widgets/widgets/tablet/tabletcanvas.h | |
parent | c248a1fa57fd088a3acc8a844af08ff78041991e (diff) |
Tablet example: update only the drawn areas of the canvas
This makes an enormous difference in responsiveness on the iPad Pro:
it actually feels like real-time drawing with hardly any lag.
Change-Id: I17c3b948e818d4ee46b4d24934c929ab9b386e69
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Diffstat (limited to 'examples/widgets/widgets/tablet/tabletcanvas.h')
-rw-r--r-- | examples/widgets/widgets/tablet/tabletcanvas.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/widgets/widgets/tablet/tabletcanvas.h b/examples/widgets/widgets/tablet/tabletcanvas.h index a1b31c65bf..671d5376f8 100644 --- a/examples/widgets/widgets/tablet/tabletcanvas.h +++ b/examples/widgets/widgets/tablet/tabletcanvas.h @@ -103,7 +103,7 @@ private: void initPixmap(); void paintPixmap(QPainter &painter, QTabletEvent *event); Qt::BrushStyle brushPattern(qreal value); - qreal pressureToWidth(qreal pressure); + static qreal pressureToWidth(qreal pressure); void updateBrush(const QTabletEvent *event); void updateCursor(const QTabletEvent *event); |