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Combo: Allow SetNextWindowSize() to alter combo popup size. (#6130)

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Amend a5e939214
This commit is contained in:
ocornut 2023-01-31 11:23:24 +01:00
parent 259560aa26
commit f142887088
2 changed files with 7 additions and 1 deletions
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1
docs/CHANGELOG.txt
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@ -52,6 +52,7 @@ All changes:
- InputText: On OSX, inhibit usage of Alt key to toggle menu when active (used for work skip).
- Menus: Fixed layout of MenuItem()/BeginMenu() when label contains a '\n'. (#6116) [@imkcy9]
- PlotHistogram, PlotLines: Passing negative sizes honor alignment like other widgets.
- Combo: Allow SetNextWindowSize() to alter combo popup size. (#6130)
- ImDrawList: Added missing early-out in AddPolyline() and AddConvexPolyFilled() when
color alpha is zero.
- Misc: Most text functions treat "%s" as a shortcut to no-formatting. (#3466)

7
imgui_widgets.cpp
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@ -1695,7 +1695,12 @@ bool ImGui::BeginComboPopup(ImGuiID popup_id, const ImRect& bb, ImGuiComboFlags
if (flags & ImGuiComboFlags_HeightRegular) popup_max_height_in_items = 8;
else if (flags & ImGuiComboFlags_HeightSmall) popup_max_height_in_items = 4;
else if (flags & ImGuiComboFlags_HeightLarge) popup_max_height_in_items = 20;
SetNextWindowSizeConstraints(ImVec2(w, 0.0f), ImVec2(FLT_MAX, CalcMaxPopupHeightFromItemCount(popup_max_height_in_items)));
ImVec2 constraint_min(0.0f, 0.0f), constraint_max(FLT_MAX, FLT_MAX);
if ((g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize) == 0 || g.NextWindowData.SizeVal.x <= 0.0f) // Don't apply constraints if user specified a size
constraint_min.x = w;
if ((g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize) == 0 || g.NextWindowData.SizeVal.y <= 0.0f)
constraint_max.y = CalcMaxPopupHeightFromItemCount(popup_max_height_in_items);
SetNextWindowSizeConstraints(constraint_min, constraint_max);
}
// This is essentially a specialized version of BeginPopupEx()