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Fix CC_Slider rendering on macOS

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QSlider rendering is currently broken as the context used to render it
is not properly translated. This patch fixes that.

Fixes: QTBUG-72970
Change-Id: I30896ceee1f37f6dfcf01a342d10af3bb279ac8a
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
This commit is contained in:
Samuel Gaist 2019-01-11 23:48:11 +01:00
parent 7cf9f4e3d3
commit 036e9d66f5
1 changed files with 14 additions and 9 deletions
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23
src/plugins/styles/mac/qmacstyle_mac.mm
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@ -5273,9 +5273,20 @@ void QMacStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex
}
d->drawNSViewInRect(slider, opt->rect, p, ^(CGContextRef ctx, const CGRect &rect) {
if (isHorizontal && sl->upsideDown) {
CGContextTranslateCTM(ctx, rect.size.width, 0);
CGContextScaleCTM(ctx, -1, 1);
// Since the GC is flipped, upsideDown means *not* inverted when vertical.
const bool verticalFlip = !isHorizontal && !sl->upsideDown; // FIXME: && !isSierraOrLater
if (isHorizontal) {
if (sl->upsideDown) {
CGContextTranslateCTM(ctx, rect.size.width, rect.origin.y);
CGContextScaleCTM(ctx, -1, 1);
} else {
CGContextTranslateCTM(ctx, 0, rect.origin.y);
}
} else if (verticalFlip) {
CGContextTranslateCTM(ctx, rect.origin.x, rect.size.height);
CGContextScaleCTM(ctx, 1, -1);
}
if (hasDoubleTicks) {
@ -5286,9 +5297,6 @@ void QMacStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex
CGContextTranslateCTM(ctx, 1, 0);
}
// Since the GC is flipped, upsideDown means *not* inverted when vertical.
const bool verticalFlip = !isHorizontal && !sl->upsideDown; // FIXME: && !isSierraOrLater
#if 0
// FIXME: Sadly, this part doesn't work. It seems to somehow polute the
// NSSlider's internal state and, when we need to use the "else" part,
@ -5352,9 +5360,6 @@ void QMacStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex
// This ain't HIG kosher: force round knob look.
if (hasDoubleTicks)
slider.numberOfTickMarks = 0;
// Draw the knob in the symmetrical position instead of flipping.
if (verticalFlip)
slider.intValue = slider.maxValue - slider.intValue + slider.minValue;
[cell drawKnob];
}
}