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Viewports: Don't set ImGuiViewportFlags_NoRendererClear when ImGuiWindowFlags_NoBackground is set. (#3213)

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omar 2020-05-11 17:29:50 +02:00
parent 1e7672acf4
commit 6636cb9f2f
1 changed files with 5 additions and 2 deletions
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7
imgui.cpp
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@ -6236,7 +6236,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
UpdateViewportPlatformMonitor(window->Viewport);
// Update common viewport flags
ImGuiViewportFlags viewport_flags = (window->Viewport->Flags) & ~(ImGuiViewportFlags_TopMost | ImGuiViewportFlags_NoTaskBarIcon | ImGuiViewportFlags_NoDecoration);
const ImGuiViewportFlags viewport_flags_to_clear = ImGuiViewportFlags_TopMost | ImGuiViewportFlags_NoTaskBarIcon | ImGuiViewportFlags_NoDecoration | ImGuiViewportFlags_NoRendererClear;
ImGuiViewportFlags viewport_flags = window->Viewport->Flags & ~viewport_flags_to_clear;
const bool is_short_lived_floating_window = (flags & (ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_Popup)) != 0;
if (flags & ImGuiWindowFlags_Tooltip)
viewport_flags |= ImGuiViewportFlags_TopMost;
@ -6266,7 +6267,9 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
viewport_flags &= ~window->WindowClass.ViewportFlagsOverrideClear;
// We also tell the back-end that clearing the platform window won't be necessary, as our window is filling the viewport and we have disabled BgAlpha
viewport_flags |= ImGuiViewportFlags_NoRendererClear;
if (!(flags & ImGuiWindowFlags_NoBackground))
viewport_flags &= ~ImGuiViewportFlags_NoRendererClear;
window->Viewport->Flags = viewport_flags;
}