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Viewports: Avoid rendering/swapping secondary viewports that are minimized. (#1542, #2496)

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omar
2019-04-22 11:46:04 +02:00
parent 20f0cb0281
commit d0fb547dc1
3 changed files with 28 additions and 15 deletions
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5
imgui.h
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@@ -726,7 +726,7 @@ namespace ImGui
IMGUI_API ImGuiPlatformIO& GetPlatformIO(); // platform/renderer functions, for back-end to setup + viewports list.
IMGUI_API ImGuiViewport* GetMainViewport(); // main viewport. same as GetPlatformIO().MainViewport == GetPlatformIO().Viewports[0].
IMGUI_API void UpdatePlatformWindows(); // call in main loop. will call CreateWindow/ResizeWindow/etc. platform functions for each secondary viewport, and DestroyWindow for each inactive viewport.
IMGUI_API void RenderPlatformWindowsDefault(void* platform_arg = NULL, void* renderer_arg = NULL); // call in main loop. will call RenderWindow/SwapBuffers platform functions for each secondary viewport. may be reimplemented by user for custom rendering needs.
IMGUI_API void RenderPlatformWindowsDefault(void* platform_arg = NULL, void* renderer_arg = NULL); // call in main loop. will call RenderWindow/SwapBuffers platform functions for each secondary viewport which doesn't have the ImGuiViewportFlags_Minimized flag set. May be reimplemented by user for custom rendering needs.
IMGUI_API void DestroyPlatformWindows(); // call DestroyWindow platform functions for all viewports. call from back-end Shutdown() if you need to close platform windows before imgui shutdown. otherwise will be called by DestroyContext().
IMGUI_API ImGuiViewport* FindViewportByID(ImGuiID id); // this is a helper for back-ends.
IMGUI_API ImGuiViewport* FindViewportByPlatformHandle(void* platform_handle); // this is a helper for back-ends. the type platform_handle is decided by the back-end (e.g. HWND, MyWindow*, GLFWwindow* etc.)
@@ -2347,7 +2347,8 @@ enum ImGuiViewportFlags_
ImGuiViewportFlags_NoFocusOnClick = 1 << 3, // Platform Window: Don't take focus when clicked on.
ImGuiViewportFlags_NoInputs = 1 << 4, // Platform Window: Make mouse pass through so we can drag this window while peaking behind it.
ImGuiViewportFlags_NoRendererClear = 1 << 5, // Platform Window: Renderer doesn't need to clear the framebuffer ahead (because we will fill it entirely).
ImGuiViewportFlags_TopMost = 1 << 6 // Platform Window: Display on top (for tooltips only)
ImGuiViewportFlags_TopMost = 1 << 6, // Platform Window: Display on top (for tooltips only)
ImGuiViewportFlags_Minimized = 1 << 7 // Platform Window: Window is minimized, can skip render. When minimized we tend to avoid using the viewport pos/size for clipping window or testing if they are contained in the viewport.
};
// The viewports created and managed by imgui. The role of the platform back-end is to create the platform/OS windows corresponding to each viewport.