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Viewports Added ImGui::GetMainViewport() as a way to get the bounds and work area of the host display. (#3789, #1542)
Viewports: Backport a few constructs from 'docking' branch. Viewports: Added ImGuiViewportFlags_IsPlatformWindow, ImGuiViewportFlags_IsPlatformMonitor, ImGuiViewportFlags_OwnedByApp (none of them were in docking branch yet). ImGuiViewportFlags_IsPlatformMonitor is merely there to convey future intent, not yet used. Reduce uses of io.DisplaySize. MainMenuBar: Backport work area handling code from 'docking' branch. Metrics: Backported "Viewports" debug visualizer from 'docking' branch. Demo: Rework 'Examples->Fullscreen Window'. Demo: 'Simple Overlay' demo now moves under main menu-bar (if any) using GetMainViewport()'s work area.
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ocornut
61
imgui.h
61
imgui.h
@ -31,6 +31,7 @@ Index of this file:
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// [SECTION] Helpers (ImGuiOnceUponAFrame, ImGuiTextFilter, ImGuiTextBuffer, ImGuiStorage, ImGuiListClipper, ImColor)
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// [SECTION] Drawing API (ImDrawCallback, ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawListFlags, ImDrawList, ImDrawData)
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// [SECTION] Font API (ImFontConfig, ImFontGlyph, ImFontGlyphRangesBuilder, ImFontAtlasFlags, ImFontAtlas, ImFont)
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// [SECTION] Viewports (ImGuiViewportFlags, ImGuiViewport)
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*/
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@ -59,7 +60,7 @@ Index of this file:
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// Version
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// (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
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#define IMGUI_VERSION "1.81 WIP"
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#define IMGUI_VERSION_NUM 18003
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#define IMGUI_VERSION_NUM 18004
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#define IMGUI_CHECKVERSION() ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
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#define IMGUI_HAS_TABLE
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@ -143,6 +144,7 @@ struct ImGuiTableSortSpecs; // Sorting specifications for a table (often
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struct ImGuiTableColumnSortSpecs; // Sorting specification for one column of a table
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struct ImGuiTextBuffer; // Helper to hold and append into a text buffer (~string builder)
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struct ImGuiTextFilter; // Helper to parse and apply text filters (e.g. "aaaaa[,bbbbb][,ccccc]")
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struct ImGuiViewport; // A Platform Window (always only one in 'master' branch), in the future may represent Platform Monitor
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// Enums/Flags (declared as int for compatibility with old C++, to allow using as flags and to not pollute the top of this file)
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// - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!
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@ -181,6 +183,7 @@ typedef int ImGuiTableFlags; // -> enum ImGuiTableFlags_ // Flags: F
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typedef int ImGuiTableColumnFlags; // -> enum ImGuiTableColumnFlags_// Flags: For TableSetupColumn()
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typedef int ImGuiTableRowFlags; // -> enum ImGuiTableRowFlags_ // Flags: For TableNextRow()
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typedef int ImGuiTreeNodeFlags; // -> enum ImGuiTreeNodeFlags_ // Flags: for TreeNode(), TreeNodeEx(), CollapsingHeader()
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typedef int ImGuiViewportFlags; // -> enum ImGuiViewportFlags_ // Flags: for ImGuiViewport
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typedef int ImGuiWindowFlags; // -> enum ImGuiWindowFlags_ // Flags: for Begin(), BeginChild()
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// Other types
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@ -414,8 +417,8 @@ namespace ImGui
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IMGUI_API void SetCursorPosX(float local_x); // GetWindowPos() + GetCursorPos() == GetCursorScreenPos() etc.)
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IMGUI_API void SetCursorPosY(float local_y); //
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IMGUI_API ImVec2 GetCursorStartPos(); // initial cursor position in window coordinates
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IMGUI_API ImVec2 GetCursorScreenPos(); // cursor position in absolute screen coordinates [0..io.DisplaySize] (useful to work with ImDrawList API)
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IMGUI_API void SetCursorScreenPos(const ImVec2& pos); // cursor position in absolute screen coordinates [0..io.DisplaySize]
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IMGUI_API ImVec2 GetCursorScreenPos(); // cursor position in absolute coordinates (useful to work with ImDrawList API). generally top-left == GetMainViewport()->Pos == (0,0) in single viewport mode, and bottom-right == GetMainViewport()->Pos+Size == io.DisplaySize in single-viewport mode.
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IMGUI_API void SetCursorScreenPos(const ImVec2& pos); // cursor position in absolute coordinates
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IMGUI_API void AlignTextToFramePadding(); // vertically align upcoming text baseline to FramePadding.y so that it will align properly to regularly framed items (call if you have text on a line before a framed item)
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IMGUI_API float GetTextLineHeight(); // ~ FontSize
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IMGUI_API float GetTextLineHeightWithSpacing(); // ~ FontSize + style.ItemSpacing.y (distance in pixels between 2 consecutive lines of text)
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@ -787,6 +790,12 @@ namespace ImGui
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IMGUI_API ImVec2 GetItemRectSize(); // get size of last item
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IMGUI_API void SetItemAllowOverlap(); // allow last item to be overlapped by a subsequent item. sometimes useful with invisible buttons, selectables, etc. to catch unused area.
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// Viewports
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// - Currently represents the Platform Window created by the application which is hosting our Dear ImGui windows.
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// - In 'docking' branch with multi-viewport enabled, we extend this concept to have multiple active viewports.
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// - In the future we will extend this concept further to also represent Platform Monitor and support a "no main platform window" operation mode.
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IMGUI_API ImGuiViewport* GetMainViewport(); // return primary/default viewport.
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// Miscellaneous Utilities
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IMGUI_API bool IsRectVisible(const ImVec2& size); // test if rectangle (of given size, starting from cursor position) is visible / not clipped.
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IMGUI_API bool IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max); // test if rectangle (in screen space) is visible / not clipped. to perform coarse clipping on user's side.
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@ -1736,7 +1745,7 @@ struct ImGuiIO
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ImGuiConfigFlags ConfigFlags; // = 0 // See ImGuiConfigFlags_ enum. Set by user/application. Gamepad/keyboard navigation options, etc.
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ImGuiBackendFlags BackendFlags; // = 0 // See ImGuiBackendFlags_ enum. Set by backend (imgui_impl_xxx files or custom backend) to communicate features supported by the backend.
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ImVec2 DisplaySize; // <unset> // Main display size, in pixels.
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ImVec2 DisplaySize; // <unset> // Main display size, in pixels (generally == GetMainViewport()->Size)
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float DeltaTime; // = 1.0f/60.0f // Time elapsed since last frame, in seconds.
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float IniSavingRate; // = 5.0f // Minimum time between saving positions/sizes to .ini file, in seconds.
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const char* IniFilename; // = "imgui.ini" // Path to .ini file. Set NULL to disable automatic .ini loading/saving, if e.g. you want to manually load/save from memory.
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@ -2334,7 +2343,8 @@ enum ImDrawListFlags_
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// Each dear imgui window contains its own ImDrawList. You can use ImGui::GetWindowDrawList() to
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// access the current window draw list and draw custom primitives.
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// You can interleave normal ImGui:: calls and adding primitives to the current draw list.
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// All positions are generally in pixel coordinates (top-left at (0,0), bottom-right at io.DisplaySize), but you are totally free to apply whatever transformation matrix to want to the data (if you apply such transformation you'll want to apply it to ClipRect as well)
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// In single viewport mode, top-left is == GetMainViewport()->Pos (generally 0,0), bottom-right is == GetMainViewport()->Pos+Size (generally io.DisplaySize).
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// You are totally free to apply whatever transformation matrix to want to the data (depending on the use of the transformation you may want to apply it to ClipRect as well!)
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// Important: Primitives are always added to the list and not culled (culling is done at higher-level by ImGui:: functions), if you use this API a lot consider coarse culling your drawn objects.
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struct ImDrawList
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{
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@ -2465,8 +2475,8 @@ struct ImDrawData
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int TotalIdxCount; // For convenience, sum of all ImDrawList's IdxBuffer.Size
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int TotalVtxCount; // For convenience, sum of all ImDrawList's VtxBuffer.Size
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ImDrawList** CmdLists; // Array of ImDrawList* to render. The ImDrawList are owned by ImGuiContext and only pointed to from here.
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ImVec2 DisplayPos; // Upper-left position of the viewport to render (== upper-left of the orthogonal projection matrix to use)
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ImVec2 DisplaySize; // Size of the viewport to render (== io.DisplaySize for the main viewport) (DisplayPos + DisplaySize == lower-right of the orthogonal projection matrix to use)
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ImVec2 DisplayPos; // Top-left position of the viewport to render (== top-left of the orthogonal projection matrix to use) (== GetMainViewport()->Pos for the main viewport, == (0.0) in most single-viewport applications)
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ImVec2 DisplaySize; // Size of the viewport to render (== GetMainViewport()->Size for the main viewport, == io.DisplaySize in most single-viewport applications)
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ImVec2 FramebufferScale; // Amount of pixels for each unit of DisplaySize. Based on io.DisplayFramebufferScale. Generally (1,1) on normal display, (2,2) on OSX with Retina display.
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// Functions
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@ -2724,6 +2734,43 @@ struct ImFont
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IMGUI_API bool IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last);
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};
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//-----------------------------------------------------------------------------
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// [SECTION] Viewports
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//-----------------------------------------------------------------------------
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// Flags stored in ImGuiViewport::Flags
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enum ImGuiViewportFlags_
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{
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ImGuiViewportFlags_None = 0,
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ImGuiViewportFlags_IsPlatformWindow = 1 << 0, // Represent a Platform Window
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ImGuiViewportFlags_IsPlatformMonitor = 1 << 1, // Represent a Platform Monitor (unused yet)
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ImGuiViewportFlags_OwnedByApp = 1 << 2 // Platform Window: is created/managed by the application (rather than a dear imgui backend)
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};
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// - Currently represents the Platform Window created by the application which is hosting our Dear ImGui windows.
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// - In 'docking' branch with multi-viewport enabled, we extend this concept to have multiple active viewports.
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// - In the future we will extend this concept further to also represent Platform Monitor and support a "no main platform window" operation mode.
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// - About Main Area vs Work Area:
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// - Main Area = entire viewport.
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// - Work Area = entire viewport minus sections used by main menu bars (for platform windows), or by task bar (for platform monitor).
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// - Windows are generally trying to stay within the Work Area of their host viewport.
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struct ImGuiViewport
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{
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ImGuiViewportFlags Flags; // See ImGuiViewportFlags_
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ImVec2 Pos; // Main Area: Position of the viewport (Dear Imgui coordinates are the same as OS desktop/native coordinates)
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ImVec2 Size; // Main Area: Size of the viewport.
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ImVec2 WorkPos; // Work Area: Position of the viewport minus task bars, menus bars, status bars (>= Pos)
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ImVec2 WorkSize; // Work Area: Size of the viewport minus task bars, menu bars, status bars (<= Size)
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ImGuiViewport() { memset(this, 0, sizeof(*this)); }
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// Helpers
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ImVec2 GetCenter() const { return ImVec2(Pos.x + Size.x * 0.5f, Pos.y + Size.y * 0.5f); }
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ImVec2 GetWorkCenter() const { return ImVec2(WorkPos.x + WorkSize.x * 0.5f, WorkPos.y + WorkSize.y * 0.5f); }
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};
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//-----------------------------------------------------------------------------
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#if defined(__clang__)
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#pragma clang diagnostic pop
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#elif defined(__GNUC__)
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