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Viewport, DPI: Some early work on per-viewport DPI support. At the moment the easiest way is to replace fonts during the ChangedViewport callback, but down the line we should aim at handling some of it at ImFont level. (#1542, #1676)

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omar
2018-03-09 19:08:47 +01:00
parent a2fbcc9ad4
commit 5e63711084
5 changed files with 69 additions and 23 deletions
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9
imgui_internal.h
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@ -534,19 +534,19 @@ struct ImGuiViewport
ImGuiWindow* Window;
ImVec2 Pos; // Position in imgui virtual space (Pos.y == 0.0)
ImVec2 Size;
float DpiScale;
ImDrawData DrawData;
ImDrawDataBuilder DrawDataBuilder;
// [Optional] OS/Platform Layer data. This is to allow the creation/manipulate of multiple OS/Platform windows. Not all back-ends will allow this.
ImVec2 PlatformOsDesktopPos; // Position in OS desktop/native space
float PlatformDpiScale; // FIXME-DPI: Unused
void* PlatformUserData; // void* to hold custom data structure for the platform (e.g. windowing info, render context)
void* PlatformHandle; // void* for FindViewportByPlatformHandle(). (e.g. HWND, GlfwWindow*)
bool PlatformRequestClose; // Platform window requested closure
bool PlatformRequestResize; // Platform window requested resize
void* RendererUserData; // void* to hold custom data structure for the renderer (e.g. framebuffer)
ImGuiViewport(ImGuiID id, int idx) { ID = id; Idx = idx; Flags = 0; LastFrameActive = LastFrameAsRefViewport = -1; LastNameHash = 0; Window = NULL; PlatformDpiScale = 0.0f; PlatformUserData = PlatformHandle = NULL; PlatformRequestClose = PlatformRequestResize = false; RendererUserData = NULL; }
ImGuiViewport(ImGuiID id, int idx) { ID = id; Idx = idx; Flags = 0; LastFrameActive = LastFrameAsRefViewport = -1; LastNameHash = 0; Window = NULL; DpiScale = 0.0f; PlatformUserData = PlatformHandle = NULL; PlatformRequestClose = PlatformRequestResize = false; RendererUserData = NULL; }
~ImGuiViewport() { IM_ASSERT(PlatformUserData == NULL && RendererUserData == NULL); }
ImRect GetRect() const { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
float GetNextX() const { const float SPACING = 4.0f; return Pos.x + Size.x + SPACING; }
@ -1010,7 +1010,8 @@ struct IMGUI_API ImGuiWindow
ImGuiMenuColumns MenuColumns; // Simplified columns storage for menu items
ImGuiStorage StateStorage;
ImVector<ImGuiColumnsSet> ColumnsStorage;
float FontWindowScale; // Scale multiplier per-window
float FontWindowScale; // User scale multiplier per-window
float FontDpiScale;
ImDrawList* DrawList;
ImGuiWindow* ParentWindow; // If we are a child _or_ popup window, this is pointing to our parent. Otherwise NULL.
ImGuiWindow* RootWindow; // Point to ourself or first ancestor that is not a child window.
@ -1042,7 +1043,7 @@ public:
// We don't use g.FontSize because the window may be != g.CurrentWidow.
ImRect Rect() const { return ImRect(Pos.x, Pos.y, Pos.x+Size.x, Pos.y+Size.y); }
float CalcFontSize() const { return GImGui->FontBaseSize * FontWindowScale; }
float CalcFontSize() const { return GImGui->FontBaseSize * FontWindowScale * FontDpiScale; }
float TitleBarHeight() const { return (Flags & ImGuiWindowFlags_NoTitleBar) ? 0.0f : CalcFontSize() + GImGui->Style.FramePadding.y * 2.0f; }
ImRect TitleBarRect() const { return ImRect(Pos, ImVec2(Pos.x + SizeFull.x, Pos.y + TitleBarHeight())); }
float MenuBarHeight() const { return (Flags & ImGuiWindowFlags_MenuBar) ? CalcFontSize() + GImGui->Style.FramePadding.y * 2.0f : 0.0f; }