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Multi-Select: Box-Select: improve dirty unclip rectangle calculation + use in ImGuiMultiSelectFlags_BoxSelect1d mode when needed (e.g. wheel scrolling up). (#7994, #8250, #7821, #7850, #7970)

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ocornut
2026-04-17 14:38:12 +02:00
parent a2eb6d99ed
commit c91b03060d
4 changed files with 64 additions and 14 deletions
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imgui_internal.h
+3
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@@ -606,6 +606,8 @@ struct IMGUI_API ImRect
bool Overlaps(const ImRect& r) const { return r.Min.y < Max.y && r.Max.y > Min.y && r.Min.x < Max.x && r.Max.x > Min.x; }
void Add(const ImVec2& p) { if (Min.x > p.x) Min.x = p.x; if (Min.y > p.y) Min.y = p.y; if (Max.x < p.x) Max.x = p.x; if (Max.y < p.y) Max.y = p.y; }
void Add(const ImRect& r) { if (Min.x > r.Min.x) Min.x = r.Min.x; if (Min.y > r.Min.y) Min.y = r.Min.y; if (Max.x < r.Max.x) Max.x = r.Max.x; if (Max.y < r.Max.y) Max.y = r.Max.y; }
void AddX(float x) { if (Min.x > x) Min.x = x; if (Max.x < x) Max.x = x; }
void AddY(float y) { if (Min.y > y) Min.y = y; if (Max.y < y) Max.y = y; }
void Expand(const float amount) { Min.x -= amount; Min.y -= amount; Max.x += amount; Max.y += amount; }
void Expand(const ImVec2& amount) { Min.x -= amount.x; Min.y -= amount.y; Max.x += amount.x; Max.y += amount.y; }
void Translate(const ImVec2& d) { Min.x += d.x; Min.y += d.y; Max.x += d.x; Max.y += d.y; }
@@ -1893,6 +1895,7 @@ struct ImGuiBoxSelectState
// Temporary/Transient data
bool UnclipMode; // (Temp/Transient, here in hot area). Set/cleared by the BeginMultiSelect()/EndMultiSelect() owning active box-select.
ImRect UnclipRect; // Rectangle where ItemAdd() clipping may be temporarily disabled. Need support by multi-select supporting widgets.
ImRect UnclipRects[2]; // Per-axis versions.
ImRect BoxSelectRectPrev; // Selection rectangle in absolute coordinates (derived every frame from BoxSelectStartPosRel and MousePos)
ImRect BoxSelectRectCurr;