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Bug 409773 - "gtk: in small scrolled area handle is not shown" (Make scrollbar thumbs smaller when they exceed the available space) [p=twanno@lycos.nl (Teune van Steeg) r+sr=roc a1.9=schrep]

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This commit is contained in:
reed@reedloden.com 2008-01-23 23:28:35 -08:00
parent 4776066496
commit 0790141f34
1 changed files with 17 additions and 2 deletions
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19
widget/src/gtk2/nsNativeThemeGTK.cpp
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@ -964,12 +964,27 @@ nsNativeThemeGTK::GetMinimumWidgetSize(nsIRenderingContext* aContext,
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
nsRect rect = aFrame->GetParent()->GetRect();
PRInt32 p2a = aFrame->PresContext()->DeviceContext()->
AppUnitsPerDevPixel();
nsMargin margin;
/* Get the available space, if that is smaller then the minimum size,
* adjust the mininum size to fit into it.
* Setting aIsOverridable to PR_TRUE has no effect for thumbs. */
aFrame->GetMargin(margin);
rect.Deflate(margin);
aFrame->GetParent()->GetBorderAndPadding(margin);
rect.Deflate(margin);
if (aWidgetType == NS_THEME_SCROLLBAR_THUMB_VERTICAL) {
aResult->width = metrics.slider_width;
aResult->height = metrics.min_slider_size;
aResult->height = PR_MIN(NSAppUnitsToIntPixels(rect.height, p2a),
metrics.min_slider_size);
} else {
aResult->width = metrics.min_slider_size;
aResult->height = metrics.slider_width;
aResult->width = PR_MIN(NSAppUnitsToIntPixels(rect.width, p2a),
metrics.min_slider_size);
}
*aIsOverridable = PR_FALSE;