Drag and drop: Added COL3F payload for color without alpha overwrite. Exposed standard color payload types in imgui.h (#143)
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16d9fa30b2
commit
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13
imgui.cpp
13
imgui.cpp
@ -9677,7 +9677,10 @@ bool ImGui::ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFl
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if (g.ActiveId == id && BeginDragDropSource()) // NB: The ActiveId test is merely an optional micro-optimization
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{
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SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F, &col, sizeof(col), ImGuiCond_Once);
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if (flags & ImGuiColorEditFlags_NoAlpha)
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SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F, &col, sizeof(float) * 3, ImGuiCond_Once);
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else
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SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F, &col, sizeof(float) * 4, ImGuiCond_Once);
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ColorButton(desc_id, col, flags);
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SameLine();
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TextUnformatted("Color");
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@ -9963,10 +9966,14 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
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if (window->DC.LastItemRectHoveredRect && BeginDragDropTarget()) // NB: The LastItemRectHoveredRect test is merely an optional micro-optimization
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{
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if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))
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{
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memcpy((float*)col, payload->Data, sizeof(float) * 3);
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value_changed = true;
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}
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if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
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{
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IM_ASSERT(payload->DataSize == sizeof(ImVec4));
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memcpy((float*)col, payload->Data, sizeof(ImVec4));
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memcpy((float*)col, payload->Data, sizeof(float) * components);
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value_changed = true;
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}
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EndDragDropTarget();
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4
imgui.h
4
imgui.h
@ -610,6 +610,10 @@ enum ImGuiDragDropFlags_
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ImGuiDragDropFlags_AcceptPeekOnly = ImGuiDragDropFlags_AcceptBeforeDelivery | ImGuiDragDropFlags_AcceptNoDrawDefaultRect // For peeking ahead and inspecting the payload before delivery.
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};
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// Standard Drag and Drop payload types. Types starting with '_' are defined by Dear ImGui.
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#define IMGUI_PAYLOAD_TYPE_COLOR_3F "_COL3F" // float[3] // Standard type for colors, without alpha. User code may use this type.
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#define IMGUI_PAYLOAD_TYPE_COLOR_4F "_COL4F" // float[4] // Standard type for colors. User code may use this type.
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// User fill ImGuiIO.KeyMap[] array with indices into the ImGuiIO.KeysDown[512] array
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enum ImGuiKey_
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{
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@ -169,8 +169,7 @@ inline void operator delete(void*, ImPlacementNewDummy, void*) {}
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// Types
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//-----------------------------------------------------------------------------
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// Drag and Drop payload types. String starting with '_' are managed by Dear ImGui.
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#define IMGUI_PAYLOAD_TYPE_COLOR_4F "_COL4F" // float[4] // Standard type for colors. User code may use this type. Build a float[4] out of a float[3] if you don't have alpha.
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// Internal Drag and Drop payload types. String starting with '_' are reserved for Dear ImGui.
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#define IMGUI_PAYLOAD_TYPE_DOCKABLE "_IMDOCK" // ImGuiWindow* // [Internal] Docking/tabs
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enum ImGuiButtonFlags_
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