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Viewport: Fix to allow changing/animated window name to be reflected in the OS e.g. task bar, so named documents can appear properly. (#1542)
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commit
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17
imgui.cpp
17
imgui.cpp
@ -3596,15 +3596,15 @@ void ImGui::UpdatePlatformWindows()
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// Update title bar
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const char* title_begin = viewport->Window->Name;
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const char* title_end = ImGui::FindRenderedTextEnd(title_begin);
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char* title_end = (char*)ImGui::FindRenderedTextEnd(title_begin);
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const ImGuiID title_hash = ImHash(title_begin, (int)(title_end - title_begin));
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if (viewport->LastNameHash != title_hash)
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{
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viewport->LastNameHash = title_hash;
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char* title_displayed = ImStrdup(viewport->Window->Name);
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title_displayed[title_end - title_begin] = 0;
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g.PlatformIO.Platform_SetWindowTitle(viewport, title_displayed);
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ImGui::MemFree(title_displayed);
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char title_end_backup_c = *title_end;
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*title_end = 0; // Cut existing buffer short instead of doing an alloc/free
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g.PlatformIO.Platform_SetWindowTitle(viewport, title_begin);
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*title_end = title_end_backup_c;
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}
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// Update alpha
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@ -6422,6 +6422,13 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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window = CreateNewWindow(name, size_on_first_use, flags);
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}
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// Update name when it changes (which can only happen with the "###" operator), but only if it is meant to be displayed to the end user, else there is no point.
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if (!window_just_created && window->Viewport && window->Viewport->Window == window && strcmp(name, window->Name) != 0)
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{
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IM_DELETE(window->Name);
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window->Name = ImStrdup(name);
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}
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// Automatically disable manual moving/resizing when NoInputs is set
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if (flags & ImGuiWindowFlags_NoInputs)
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flags |= ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize;
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