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Internals: Added SplitterBehavior(). (#319)
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195abc3d17
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302757447a
49
imgui.cpp
49
imgui.cpp
@ -10184,6 +10184,55 @@ void ImGui::VerticalSeparator()
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LogText(" |");
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}
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bool ImGui::SplitterBehavior(ImGuiID id, const ImRect& bb, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend)
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{
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ImGuiContext& g = *GImGui;
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ImGuiWindow* window = g.CurrentWindow;
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const ImGuiItemFlags item_flags_backup = window->DC.ItemFlags;
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#ifdef IMGUI_HAS_NAV
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window->DC.ItemFlags |= ImGuiItemFlags_NoNav | ImGuiItemFlags_NoNavDefaultFocus;
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#endif
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bool add = ItemAdd(bb, id);
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window->DC.ItemFlags = item_flags_backup;
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if (!add)
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return false;
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bool hovered, held;
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ImRect bb_interact = bb;
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bb_interact.Expand(axis == ImGuiAxis_Y ? ImVec2(0.0f, hover_extend) : ImVec2(hover_extend, 0.0f));
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ButtonBehavior(bb_interact, id, &hovered, &held, ImGuiButtonFlags_FlattenChilds | ImGuiButtonFlags_AllowOverlapMode);
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if (g.ActiveId != id)
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SetItemAllowOverlap();
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if (held || (g.HoveredId == id && g.HoveredIdPreviousFrame == id))
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SetMouseCursor(axis == ImGuiAxis_Y ? ImGuiMouseCursor_ResizeNS : ImGuiMouseCursor_ResizeEW);
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ImRect bb_render = bb;
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if (held)
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{
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ImVec2 mouse_delta_2d = g.IO.MousePos - g.ActiveIdClickOffset - bb_interact.Min;
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float mouse_delta = (axis == ImGuiAxis_Y) ? mouse_delta_2d.y : mouse_delta_2d.x;
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// Minimum pane size
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if (mouse_delta < min_size1 - *size1)
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mouse_delta = min_size1 - *size1;
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if (mouse_delta > *size2 - min_size2)
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mouse_delta = *size2 - min_size2;
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// Apply resize
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*size1 += mouse_delta;
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*size2 -= mouse_delta;
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bb_render.Translate((axis == ImGuiAxis_X) ? ImVec2(mouse_delta, 0.0f) : ImVec2(0.0f, mouse_delta));
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}
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// Render
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const ImU32 col = GetColorU32(held ? ImGuiCol_SeparatorActive : hovered ? ImGuiCol_SeparatorHovered : ImGuiCol_Separator);
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RenderFrame(bb_render.Min, bb_render.Max, col, true, g.Style.FrameRounding);
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return held;
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}
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void ImGui::Spacing()
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{
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ImGuiWindow* window = GetCurrentWindow();
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@ -221,6 +221,13 @@ enum ImGuiLayoutType_
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ImGuiLayoutType_Horizontal
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};
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enum ImGuiAxis
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{
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ImGuiAxis_None = -1,
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ImGuiAxis_X = 0,
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ImGuiAxis_Y = 1,
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};
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enum ImGuiPlotType
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{
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ImGuiPlotType_Lines,
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@ -807,6 +814,7 @@ namespace ImGui
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IMGUI_API void Scrollbar(ImGuiLayoutType direction);
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IMGUI_API void VerticalSeparator(); // Vertical separator, for menu bars (use current line height). not exposed because it is misleading what it doesn't have an effect on regular layout.
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IMGUI_API bool SplitterBehavior(ImGuiID id, const ImRect& bb, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend = 0.0f);
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// FIXME-WIP: New Columns API
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IMGUI_API void BeginColumns(const char* id, int count, ImGuiColumnsFlags flags = 0); // setup number of columns. use an identifier to distinguish multiple column sets. close with EndColumns().
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