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Fix: Incorrect available height for dropdowns due to unsigned promotion. (#10264)

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Dropdowns which are taller than the main window should automatically have
a scrollbar added. This did not work for toolbar dropdown as the location
near the top of the window resulted in an unsigned underflow.
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PeterN 2022-12-20 14:39:23 +00:00 committed by GitHub
parent 03c1b5169c
commit c962c77306
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1 changed files with 2 additions and 2 deletions
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4
src/widgets/dropdown.cpp
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@ -388,12 +388,12 @@ void ShowDropDownListAt(Window *w, DropDownList &&list, int selected, int button
bool above = false;
/* Available height below (or above, if the dropdown is placed above the widget). */
uint available_height = std::max(GetMainViewBottom() - top - WidgetDimensions::scaled.fullbevel.Vertical() * 2, 0U);
uint available_height = std::max(GetMainViewBottom() - top - (int)WidgetDimensions::scaled.fullbevel.Vertical() * 2, 0);
/* If the dropdown doesn't fully fit below the widget... */
if (height > available_height) {
uint available_height_above = std::max(w->top + wi_rect.top - GetMainViewTop() - WidgetDimensions::scaled.fullbevel.Vertical() * 2, 0U);
uint available_height_above = std::max(w->top + wi_rect.top - GetMainViewTop() - (int)WidgetDimensions::scaled.fullbevel.Vertical() * 2, 0);
/* Put the dropdown above if there is more available space. */
if (available_height_above > available_height) {