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Viewport: Added ImGuiViewportFlags_NoFocusOnClick + support in imgui_impl_win32. Made windows with no decoration always set the _NoFocus flags. (#1542, #2117)

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Fix e.g. clicking on protruding combo box stealing highlight from parent window with decoration.
This commit is contained in:
omar 2019-01-30 21:21:59 +01:00
parent 8563ef3ce4
commit e1143377c2
4 changed files with 14 additions and 3 deletions
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4
examples/example_win32_directx11/main.cpp
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@ -139,6 +139,10 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
io.ConfigFlags |= ImGuiConfigFlags_DpiEnableScaleFonts; // FIXME-DPI: THIS CURRENTLY DOESN'T WORK AS EXPECTED. DON'T USE IN USER APP!
io.ConfigFlags |= ImGuiConfigFlags_DpiEnableScaleViewports; // FIXME-DPI
//io.ConfigViewportsNoAutoMerge = true;
//io.ConfigViewportsNoTaskBarIcon = false;
//io.ConfigDockingTabBarOnSingleWindows = true;
//io.ConfigDockingTransparentPayload = true;
// Setup Dear ImGui style
ImGui::StyleColorsDark();

4
examples/imgui_impl_win32.cpp
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@ -737,6 +737,10 @@ static LRESULT CALLBACK ImGui_ImplWin32_WndProcHandler_PlatformWindow(HWND hWnd,
case WM_SIZE:
viewport->PlatformRequestResize = true;
break;
case WM_MOUSEACTIVATE:
if (viewport->Flags & ImGuiViewportFlags_NoFocusOnClick)
return MA_NOACTIVATE;
break;
case WM_NCHITTEST:
// Let mouse pass-through the window. This will allow the back-end to set io.MouseHoveredViewport properly (which is OPTIONAL).
// The ImGuiViewportFlags_NoInputs flag is set while dragging a viewport, as want to detect the window behind the one we are dragging.

2
imgui.cpp
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@ -5520,6 +5520,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
viewport_flags |= ImGuiViewportFlags_NoTaskBarIcon;
if (g.IO.ConfigViewportsNoDecoration || (flags & (ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_Popup)) != 0)
viewport_flags |= ImGuiViewportFlags_NoDecoration;
if ((viewport_flags & ImGuiViewportFlags_NoDecoration) && (viewport_flags & ImGuiViewportFlags_NoTaskBarIcon))
viewport_flags |= ImGuiViewportFlags_NoFocusOnAppearing | ImGuiViewportFlags_NoFocusOnClick;
// We can overwrite viewport flags using ImGuiWindowClass (advanced users)
// We don't default to the main viewport because.

7
imgui.h
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@ -2298,9 +2298,10 @@ enum ImGuiViewportFlags_
ImGuiViewportFlags_NoDecoration = 1 << 0, // Platform Window: Disable platform decorations: title bar, borders, etc. (generally set all windows, but if ImGuiConfigFlags_ViewportsDecoration is set we only set this on popups/tooltips)
ImGuiViewportFlags_NoTaskBarIcon = 1 << 1, // Platform Window: Disable platform task bar icon (generally set on popups/tooltips, or all windows if ImGuiConfigFlags_ViewportsNoTaskBarIcon is set)
ImGuiViewportFlags_NoFocusOnAppearing = 1 << 2, // Platform Window: Don't take focus when created.
ImGuiViewportFlags_NoInputs = 1 << 3, // Platform Window: Make mouse pass through so we can drag this window while peaking behind it.
ImGuiViewportFlags_NoRendererClear = 1 << 4, // Platform Window: Renderer doesn't need to clear the framebuffer ahead (because we will fill it entirely).
ImGuiViewportFlags_TopMost = 1 << 5 // Platform Window: Display on top (for tooltips only)
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)
};
// 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.