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BScrollBar: Use the minimum as the preferred size in the alternate axis.

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This was the behavior before the commit yesterday that unified the
two methods of computing the preferred size. It seems some applications
expect this to be callable without a window lock, so this works when
the other method does not.

Fixes #16372.
This commit is contained in:
Augustin Cavalier
2020-07-06 21:40:51 -04:00
parent 840f23676c
commit 8539dfdac2
1 changed files with 3 additions and 3 deletions
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src/kits/interface/ScrollBar.cpp
+3 -3
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@@ -999,10 +999,10 @@ BScrollBar::GetPreferredSize(float* _width, float* _height)
*_width = B_V_SCROLL_BAR_WIDTH * scale;
if (_height)
*_height = Bounds().Height();
*_height = _MinSize().Height();
} else if (fOrientation == B_HORIZONTAL) {
if (_width)
*_width = Bounds().Width();
*_width = _MinSize().Width();
if (_height)
*_height = B_H_SCROLL_BAR_HEIGHT * scale;
@@ -1228,7 +1228,7 @@ BScrollBar::_UpdateThumbFrame()
thumbSize = floorf(thumbSize + 0.5);
thumbSize--;
// the thumb can be scrolled within the remaining area "maxSize - thumbSize - 1.0"
// the thumb can be scrolled within the remaining area "maxSize - thumbSize - 1.0"
float offset = 0.0;
if (fMax > fMin) {
offset = floorf(((fValue - fMin) / (fMax - fMin))