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Multi-Select: Box-Select: fixed an issue using ImGuiMultiSelectFlags_BoxSelect2d mode, where items out of view wouldn't be properly selected. (#7994, #1861, #6518)

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Because BoxSelectRectPrev and BoxSelectRectCurr were clamped to scope boundaries, dragging mouse outside of the scope would usually keep one axis unchanged.
Amend 15391762dd
This commit is contained in:
ocornut
2026-04-09 21:36:50 +02:00
parent 24677c561e
commit b444694b3d
2 changed files with 13 additions and 7 deletions
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docs/CHANGELOG.txt
+4
View File
@@ -58,6 +58,10 @@ Other Changes:
- Detect and report error when calling End() instead of EndPopup() on a popup. (#9351)
- Child windows with only ImGuiChildFlags_AutoResizeY flag keep using the proportional
default ItemWidth. (#9355)
- Multi-Select:
- Box-Select: fixed an issue using ImGuiMultiSelectFlags_BoxSelect2d mode, where
items out of view wouldn't be properly selected when scrolling while mouse cursor
is hovering outside of selection scope. (#7994, #1861, #6518)
- Fonts:
- imgui_freetype: add FreeType headers & compiled version in 'About Dear ImGui' details.
- Clipper:
imgui_widgets.cpp
+9 -7
View File
@@ -7836,15 +7836,17 @@ bool ImGui::BeginBoxSelect(const ImRect& scope_rect, ImGuiWindow* window, ImGuiI
bs->BoxSelectRectCurr.Min = ImMin(start_pos_abs, curr_end_pos_abs);
bs->BoxSelectRectCurr.Max = ImMax(start_pos_abs, curr_end_pos_abs);
// Box-select 2D mode detects horizontal changes (vertical ones are already picked by Clipper)
// Storing an extra rect used by widgets supporting box-select.
// Box-select 2D mode detects change of the rectangle.
// Storing unclip rect used by widgets supporting box-select.
if (ms_flags & ImGuiMultiSelectFlags_BoxSelect2d)
if (bs->BoxSelectRectPrev.Min.x != bs->BoxSelectRectCurr.Min.x || bs->BoxSelectRectPrev.Max.x != bs->BoxSelectRectCurr.Max.x)
{
{
if (bs->BoxSelectRectPrev.Min != bs->BoxSelectRectCurr.Min || bs->BoxSelectRectPrev.Max != bs->BoxSelectRectCurr.Max)
bs->UnclipMode = true;
bs->UnclipRect = bs->BoxSelectRectPrev; // FIXME-OPT: UnclipRect x coordinates could be intersection of Prev and Curr rect on X axis.
bs->UnclipRect.Add(bs->BoxSelectRectCurr);
}
// Always update rect even if we don't use it.
bs->UnclipRect = bs->BoxSelectRectPrev; // FIXME-OPT: UnclipRect X coordinates could be intersection of Prev and Curr rect on X axis.
bs->UnclipRect.Add(bs->BoxSelectRectCurr);
}
#ifdef IMGUI_DEBUG_BOXSELECT
if (ms_flags & ImGuiMultiSelectFlags_BoxSelect2d)