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Internals: ButtonBehavior(), IsHovered() moved the responsability of flatten_child higher level to ButtonBehavior() - not super sure about the elegance of this
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16
imgui.cpp
16
imgui.cpp
@ -1951,7 +1951,6 @@ bool ImGui::ItemAdd(const ImRect& bb, const ImGuiID* id)
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// This is roughly matching the behavior of internal-facing IsHovered()
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// - we allow hovering to be true when ActiveId==window->MoveID, so that clicking on non-interactive items such as a Text() item still returns true with IsItemHovered())
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// - we don't expose the flatten_child feature that IsHovered() has, which is only used by the window resizing widget (may rework this)
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bool ImGui::IsItemHovered()
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{
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ImGuiContext& g = *GImGui;
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@ -1972,13 +1971,13 @@ bool ImGui::IsItemRectHovered()
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}
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// Internal facing IsHovered() differs slightly from IsItemHovered().
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bool ImGui::IsHovered(const ImRect& bb, ImGuiID id, bool flatten_childs)
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bool ImGui::IsHovered(const ImRect& bb, ImGuiID id)
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{
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ImGuiContext& g = *GImGui;
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if (g.HoveredId == 0 || g.HoveredId == id || g.HoveredIdAllowOverlap)
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{
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ImGuiWindow* window = g.CurrentWindow;
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if (g.HoveredWindow == window || (flatten_childs && g.HoveredRootWindow == window->RootWindow))
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if (g.HoveredWindow == window)
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if (g.ActiveId == 0 || g.ActiveId == id || g.ActiveIdAllowOverlap)
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if (IsMouseHoveringRect(bb.Min, bb.Max))
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if (IsWindowContentHoverable(g.HoveredRootWindow))
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@ -4274,6 +4273,7 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
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if (!(flags & ImGuiWindowFlags_AlwaysAutoResize) && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0 && !(flags & ImGuiWindowFlags_NoResize))
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{
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// Manual resize
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// Using the FlattenChilds button flag, we make the resize button accessible even if we are hovering over a child window
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const ImVec2 br = window->Rect().GetBR();
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const ImRect resize_rect(br - ImVec2(resize_corner_size * 0.75f, resize_corner_size * 0.75f), br);
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const ImGuiID resize_id = window->GetID("#RESIZE");
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@ -5673,8 +5673,16 @@ bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool
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if ((flags & (ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnRelease | ImGuiButtonFlags_PressedOnDoubleClick)) == 0)
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flags |= ImGuiButtonFlags_PressedOnClickRelease;
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ImGuiWindow* backup_hovered_window = g.HoveredWindow;
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if ((flags & ImGuiButtonFlags_FlattenChilds) && g.HoveredRootWindow == window)
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g.HoveredWindow = window;
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bool pressed = false;
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bool hovered = IsHovered(bb, id, (flags & ImGuiButtonFlags_FlattenChilds) != 0);
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bool hovered = IsHovered(bb, id);
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if ((flags & ImGuiButtonFlags_FlattenChilds) && g.HoveredRootWindow == window)
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g.HoveredWindow = backup_hovered_window;
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if (hovered)
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{
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SetHoveredID(id);
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@ -771,7 +771,7 @@ namespace ImGui
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IMGUI_API void ItemSize(const ImRect& bb, float text_offset_y = 0.0f);
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IMGUI_API bool ItemAdd(const ImRect& bb, const ImGuiID* id);
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IMGUI_API bool IsClippedEx(const ImRect& bb, const ImGuiID* id, bool clip_even_when_logged);
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IMGUI_API bool IsHovered(const ImRect& bb, ImGuiID id, bool flatten_childs = false);
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IMGUI_API bool IsHovered(const ImRect& bb, ImGuiID id);
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IMGUI_API bool FocusableItemRegister(ImGuiWindow* window, ImGuiID id, bool tab_stop = true); // Return true if focus is requested
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IMGUI_API void FocusableItemUnregister(ImGuiWindow* window);
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IMGUI_API ImVec2 CalcItemSize(ImVec2 size, float default_x, float default_y);
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