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skia / external / github.com / ocornut / imgui / refs/tags/v1.91.1-docking / . / imgui_internal.h
blob: 4799dc6b8d3c8a115588ee25dc69ce5bbf11c585 [file] [log] [blame]
// dear imgui, v1.91.1
// (internal structures/api)
// You may use this file to debug, understand or extend Dear ImGui features but we don't provide any guarantee of forward compatibility.
/*
Index of this file:
// [SECTION] Header mess
// [SECTION] Forward declarations
// [SECTION] Context pointer
// [SECTION] STB libraries includes
// [SECTION] Macros
// [SECTION] Generic helpers
// [SECTION] ImDrawList support
// [SECTION] Data types support
// [SECTION] Widgets support: flags, enums, data structures
// [SECTION] Popup support
// [SECTION] Inputs support
// [SECTION] Clipper support
// [SECTION] Navigation support
// [SECTION] Typing-select support
// [SECTION] Columns support
// [SECTION] Box-select support
// [SECTION] Multi-select support
// [SECTION] Docking support
// [SECTION] Viewport support
// [SECTION] Settings support
// [SECTION] Localization support
// [SECTION] Metrics, Debug tools
// [SECTION] Generic context hooks
// [SECTION] ImGuiContext (main imgui context)
// [SECTION] ImGuiWindowTempData, ImGuiWindow
// [SECTION] Tab bar, Tab item support
// [SECTION] Table support
// [SECTION] ImGui internal API
// [SECTION] ImFontAtlas internal API
// [SECTION] Test Engine specific hooks (imgui_test_engine)
*/
#pragma once
#ifndef IMGUI_DISABLE
//-----------------------------------------------------------------------------
// [SECTION] Header mess
//-----------------------------------------------------------------------------
#ifndef IMGUI_VERSION
#include "imgui.h"
#endif
#include <stdio.h> // FILE*, sscanf
#include <stdlib.h> // NULL, malloc, free, qsort, atoi, atof
#include <math.h> // sqrtf, fabsf, fmodf, powf, floorf, ceilf, cosf, sinf
#include <limits.h> // INT_MIN, INT_MAX
// Enable SSE intrinsics if available
#if (defined __SSE__ || defined __x86_64__ || defined _M_X64 || (defined(_M_IX86_FP) && (_M_IX86_FP >= 1))) && !defined(IMGUI_DISABLE_SSE)
#define IMGUI_ENABLE_SSE
#include <immintrin.h>
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (push)
#pragma warning (disable: 4251) // class 'xxx' needs to have dll-interface to be used by clients of struct 'xxx' // when IMGUI_API is set to__declspec(dllexport)
#pragma warning (disable: 26812) // The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
#pragma warning (disable: 26495) // [Static Analyzer] Variable 'XXX' is uninitialized. Always initialize a member variable (type.6).
#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
#pragma warning (disable: 5054) // operator '|': deprecated between enumerations of different types
#endif
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#if __has_warning("-Wunknown-warning-option")
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx'
#endif
#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
#pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok, for ImFloor()
#pragma clang diagnostic ignored "-Wunused-function" // for stb_textedit.h
#pragma clang diagnostic ignored "-Wmissing-prototypes" // for stb_textedit.h
#pragma clang diagnostic ignored "-Wold-style-cast"
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
#pragma clang diagnostic ignored "-Wdouble-promotion"
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#pragma clang diagnostic ignored "-Wmissing-noreturn" // warning: function 'xxx' could be declared with attribute 'noreturn'
#pragma clang diagnostic ignored "-Wdeprecated-enum-enum-conversion"// warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
#pragma clang diagnostic ignored "-Wunsafe-buffer-usage" // warning: 'xxx' is an unsafe pointer used for buffer access
#elif defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#pragma GCC diagnostic ignored "-Wdeprecated-enum-enum-conversion" // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
#endif
// In 1.89.4, we moved the implementation of "courtesy maths operators" from imgui_internal.h in imgui.h
// As they are frequently requested, we do not want to encourage to many people using imgui_internal.h
#if defined(IMGUI_DEFINE_MATH_OPERATORS) && !defined(IMGUI_DEFINE_MATH_OPERATORS_IMPLEMENTED)
#error Please '#define IMGUI_DEFINE_MATH_OPERATORS' _BEFORE_ including imgui.h!
#endif
// Legacy defines
#ifdef IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS // Renamed in 1.74
#error Use IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
#endif
#ifdef IMGUI_DISABLE_MATH_FUNCTIONS // Renamed in 1.74
#error Use IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS
#endif
// Enable stb_truetype by default unless FreeType is enabled.
// You can compile with both by defining both IMGUI_ENABLE_FREETYPE and IMGUI_ENABLE_STB_TRUETYPE together.
#ifndef IMGUI_ENABLE_FREETYPE
#define IMGUI_ENABLE_STB_TRUETYPE
#endif
//-----------------------------------------------------------------------------
// [SECTION] Forward declarations
//-----------------------------------------------------------------------------
struct ImBitVector; // Store 1-bit per value
struct ImRect; // An axis-aligned rectangle (2 points)
struct ImDrawDataBuilder; // Helper to build a ImDrawData instance
struct ImDrawListSharedData; // Data shared between all ImDrawList instances
struct ImGuiBoxSelectState; // Box-selection state (currently used by multi-selection, could potentially be used by others)
struct ImGuiColorMod; // Stacked color modifier, backup of modified data so we can restore it
struct ImGuiContext; // Main Dear ImGui context
struct ImGuiContextHook; // Hook for extensions like ImGuiTestEngine
struct ImGuiDataVarInfo; // Variable information (e.g. to access style variables from an enum)
struct ImGuiDataTypeInfo; // Type information associated to a ImGuiDataType enum
struct ImGuiDockContext; // Docking system context
struct ImGuiDockRequest; // Docking system dock/undock queued request
struct ImGuiDockNode; // Docking system node (hold a list of Windows OR two child dock nodes)
struct ImGuiDockNodeSettings; // Storage for a dock node in .ini file (we preserve those even if the associated dock node isn't active during the session)
struct ImGuiGroupData; // Stacked storage data for BeginGroup()/EndGroup()
struct ImGuiInputTextState; // Internal state of the currently focused/edited text input box
struct ImGuiInputTextDeactivateData;// Short term storage to backup text of a deactivating InputText() while another is stealing active id
struct ImGuiLastItemData; // Status storage for last submitted items
struct ImGuiLocEntry; // A localization entry.
struct ImGuiMenuColumns; // Simple column measurement, currently used for MenuItem() only
struct ImGuiMultiSelectState; // Multi-selection persistent state (for focused selection).
struct ImGuiMultiSelectTempData; // Multi-selection temporary state (while traversing).
struct ImGuiNavItemData; // Result of a gamepad/keyboard directional navigation move query result
struct ImGuiMetricsConfig; // Storage for ShowMetricsWindow() and DebugNodeXXX() functions
struct ImGuiNextWindowData; // Storage for SetNextWindow** functions
struct ImGuiNextItemData; // Storage for SetNextItem** functions
struct ImGuiOldColumnData; // Storage data for a single column for legacy Columns() api
struct ImGuiOldColumns; // Storage data for a columns set for legacy Columns() api
struct ImGuiPopupData; // Storage for current popup stack
struct ImGuiSettingsHandler; // Storage for one type registered in the .ini file
struct ImGuiStackSizes; // Storage of stack sizes for debugging/asserting
struct ImGuiStyleMod; // Stacked style modifier, backup of modified data so we can restore it
struct ImGuiTabBar; // Storage for a tab bar
struct ImGuiTabItem; // Storage for a tab item (within a tab bar)
struct ImGuiTable; // Storage for a table
struct ImGuiTableHeaderData; // Storage for TableAngledHeadersRow()
struct ImGuiTableColumn; // Storage for one column of a table
struct ImGuiTableInstanceData; // Storage for one instance of a same table
struct ImGuiTableTempData; // Temporary storage for one table (one per table in the stack), shared between tables.
struct ImGuiTableSettings; // Storage for a table .ini settings
struct ImGuiTableColumnsSettings; // Storage for a column .ini settings
struct ImGuiTreeNodeStackData; // Temporary storage for TreeNode().
struct ImGuiTypingSelectState; // Storage for GetTypingSelectRequest()
struct ImGuiTypingSelectRequest; // Storage for GetTypingSelectRequest() (aimed to be public)
struct ImGuiWindow; // Storage for one window
struct ImGuiWindowDockStyle; // Storage for window-style data which needs to be stored for docking purpose
struct ImGuiWindowTempData; // Temporary storage for one window (that's the data which in theory we could ditch at the end of the frame, in practice we currently keep it for each window)
struct ImGuiWindowSettings; // Storage for a window .ini settings (we keep one of those even if the actual window wasn't instanced during this session)
// Enumerations
// Use your programming IDE "Go to definition" facility on the names of the center columns to find the actual flags/enum lists.
enum ImGuiLocKey : int; // -> enum ImGuiLocKey // Enum: a localization entry for translation.
typedef int ImGuiDataAuthority; // -> enum ImGuiDataAuthority_ // Enum: for storing the source authority (dock node vs window) of a field
typedef int ImGuiLayoutType; // -> enum ImGuiLayoutType_ // Enum: Horizontal or vertical
// Flags
typedef int ImGuiActivateFlags; // -> enum ImGuiActivateFlags_ // Flags: for navigation/focus function (will be for ActivateItem() later)
typedef int ImGuiDebugLogFlags; // -> enum ImGuiDebugLogFlags_ // Flags: for ShowDebugLogWindow(), g.DebugLogFlags
typedef int ImGuiFocusRequestFlags; // -> enum ImGuiFocusRequestFlags_ // Flags: for FocusWindow();
typedef int ImGuiItemStatusFlags; // -> enum ImGuiItemStatusFlags_ // Flags: for g.LastItemData.StatusFlags
typedef int ImGuiOldColumnFlags; // -> enum ImGuiOldColumnFlags_ // Flags: for BeginColumns()
typedef int ImGuiNavHighlightFlags; // -> enum ImGuiNavHighlightFlags_ // Flags: for RenderNavHighlight()
typedef int ImGuiNavMoveFlags; // -> enum ImGuiNavMoveFlags_ // Flags: for navigation requests
typedef int ImGuiNextItemDataFlags; // -> enum ImGuiNextItemDataFlags_ // Flags: for SetNextItemXXX() functions
typedef int ImGuiNextWindowDataFlags; // -> enum ImGuiNextWindowDataFlags_// Flags: for SetNextWindowXXX() functions
typedef int ImGuiScrollFlags; // -> enum ImGuiScrollFlags_ // Flags: for ScrollToItem() and navigation requests
typedef int ImGuiSeparatorFlags; // -> enum ImGuiSeparatorFlags_ // Flags: for SeparatorEx()
typedef int ImGuiTextFlags; // -> enum ImGuiTextFlags_ // Flags: for TextEx()
typedef int ImGuiTooltipFlags; // -> enum ImGuiTooltipFlags_ // Flags: for BeginTooltipEx()
typedef int ImGuiTypingSelectFlags; // -> enum ImGuiTypingSelectFlags_ // Flags: for GetTypingSelectRequest()
typedef int ImGuiWindowRefreshFlags; // -> enum ImGuiWindowRefreshFlags_ // Flags: for SetNextWindowRefreshPolicy()
typedef void (*ImGuiErrorLogCallback)(void* user_data, const char* fmt, ...);
//-----------------------------------------------------------------------------
// [SECTION] Context pointer
// See implementation of this variable in imgui.cpp for comments and details.
//-----------------------------------------------------------------------------
#ifndef GImGui
extern IMGUI_API ImGuiContext* GImGui; // Current implicit context pointer
#endif
//-------------------------------------------------------------------------
// [SECTION] STB libraries includes
//-------------------------------------------------------------------------
namespace ImStb
{
#undef IMSTB_TEXTEDIT_STRING
#undef IMSTB_TEXTEDIT_CHARTYPE
#define IMSTB_TEXTEDIT_STRING ImGuiInputTextState
#define IMSTB_TEXTEDIT_CHARTYPE ImWchar
#define IMSTB_TEXTEDIT_GETWIDTH_NEWLINE (-1.0f)
#define IMSTB_TEXTEDIT_UNDOSTATECOUNT 99
#define IMSTB_TEXTEDIT_UNDOCHARCOUNT 999
#include "imstb_textedit.h"
} // namespace ImStb
//-----------------------------------------------------------------------------
// [SECTION] Macros
//-----------------------------------------------------------------------------
// Internal Drag and Drop payload types. String starting with '_' are reserved for Dear ImGui.
#define IMGUI_PAYLOAD_TYPE_WINDOW "_IMWINDOW" // Payload == ImGuiWindow*
// Debug Printing Into TTY
// (since IMGUI_VERSION_NUM >= 18729: IMGUI_DEBUG_LOG was reworked into IMGUI_DEBUG_PRINTF (and removed framecount from it). If you were using a #define IMGUI_DEBUG_LOG please rename)
#ifndef IMGUI_DEBUG_PRINTF
#ifndef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
#define IMGUI_DEBUG_PRINTF(_FMT,...) printf(_FMT, __VA_ARGS__)
#else
#define IMGUI_DEBUG_PRINTF(_FMT,...) ((void)0)
#endif
#endif
// Debug Logging for ShowDebugLogWindow(). This is designed for relatively rare events so please don't spam.
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
#define IMGUI_DEBUG_LOG(...) ImGui::DebugLog(__VA_ARGS__)
#else
#define IMGUI_DEBUG_LOG(...) ((void)0)
#endif
#define IMGUI_DEBUG_LOG_ACTIVEID(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventActiveId) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_FOCUS(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventFocus) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_POPUP(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventPopup) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_NAV(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventNav) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_SELECTION(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventSelection) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_CLIPPER(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventClipper) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_IO(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventIO) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_INPUTROUTING(...) do{if (g.DebugLogFlags & ImGuiDebugLogFlags_EventInputRouting)IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_DOCKING(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventDocking) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
#define IMGUI_DEBUG_LOG_VIEWPORT(...) do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventViewport) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
// Static Asserts
#define IM_STATIC_ASSERT(_COND) static_assert(_COND, "")
// "Paranoid" Debug Asserts are meant to only be enabled during specific debugging/work, otherwise would slow down the code too much.
// We currently don't have many of those so the effect is currently negligible, but onward intent to add more aggressive ones in the code.
//#define IMGUI_DEBUG_PARANOID
#ifdef IMGUI_DEBUG_PARANOID
#define IM_ASSERT_PARANOID(_EXPR) IM_ASSERT(_EXPR)
#else
#define IM_ASSERT_PARANOID(_EXPR)
#endif
// Error handling
// Down the line in some frameworks/languages we would like to have a way to redirect those to the programmer and recover from more faults.
#ifndef IM_ASSERT_USER_ERROR
#define IM_ASSERT_USER_ERROR(_EXP,_MSG) IM_ASSERT((_EXP) && _MSG) // Recoverable User Error
#endif
// Misc Macros
#define IM_PI 3.14159265358979323846f
#ifdef _WIN32
#define IM_NEWLINE "\r\n" // Play it nice with Windows users (Update: since 2018-05, Notepad finally appears to support Unix-style carriage returns!)
#else
#define IM_NEWLINE "\n"
#endif
#ifndef IM_TABSIZE // Until we move this to runtime and/or add proper tab support, at least allow users to compile-time override
#define IM_TABSIZE (4)
#endif
#define IM_MEMALIGN(_OFF,_ALIGN) (((_OFF) + ((_ALIGN) - 1)) & ~((_ALIGN) - 1)) // Memory align e.g. IM_ALIGN(0,4)=0, IM_ALIGN(1,4)=4, IM_ALIGN(4,4)=4, IM_ALIGN(5,4)=8
#define IM_F32_TO_INT8_UNBOUND(_VAL) ((int)((_VAL) * 255.0f + ((_VAL)>=0 ? 0.5f : -0.5f))) // Unsaturated, for display purpose
#define IM_F32_TO_INT8_SAT(_VAL) ((int)(ImSaturate(_VAL) * 255.0f + 0.5f)) // Saturated, always output 0..255
#define IM_TRUNC(_VAL) ((float)(int)(_VAL)) // ImTrunc() is not inlined in MSVC debug builds
#define IM_ROUND(_VAL) ((float)(int)((_VAL) + 0.5f)) //
#define IM_STRINGIFY_HELPER(_X) #_X
#define IM_STRINGIFY(_X) IM_STRINGIFY_HELPER(_X) // Preprocessor idiom to stringify e.g. an integer.
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
#define IM_FLOOR IM_TRUNC
#endif
// Enforce cdecl calling convention for functions called by the standard library, in case compilation settings changed the default to e.g. __vectorcall
#ifdef _MSC_VER
#define IMGUI_CDECL __cdecl
#else
#define IMGUI_CDECL
#endif
// Warnings
#if defined(_MSC_VER) && !defined(__clang__)
#define IM_MSVC_WARNING_SUPPRESS(XXXX) __pragma(warning(suppress: XXXX))
#else
#define IM_MSVC_WARNING_SUPPRESS(XXXX)
#endif
// Debug Tools
// Use 'Metrics/Debugger->Tools->Item Picker' to break into the call-stack of a specific item.
// This will call IM_DEBUG_BREAK() which you may redefine yourself. See https://github.com/scottt/debugbreak for more reference.
#ifndef IM_DEBUG_BREAK
#if defined (_MSC_VER)
#define IM_DEBUG_BREAK() __debugbreak()
#elif defined(__clang__)
#define IM_DEBUG_BREAK() __builtin_debugtrap()
#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
#define IM_DEBUG_BREAK() __asm__ volatile("int3;nop")
#elif defined(__GNUC__) && defined(__thumb__)
#define IM_DEBUG_BREAK() __asm__ volatile(".inst 0xde01")
#elif defined(__GNUC__) && defined(__arm__) && !defined(__thumb__)
#define IM_DEBUG_BREAK() __asm__ volatile(".inst 0xe7f001f0")
#else
#define IM_DEBUG_BREAK() IM_ASSERT(0) // It is expected that you define IM_DEBUG_BREAK() into something that will break nicely in a debugger!
#endif
#endif // #ifndef IM_DEBUG_BREAK
// Format specifiers, printing 64-bit hasn't been decently standardized...
// In a real application you should be using PRId64 and PRIu64 from <inttypes.h> (non-windows) and on Windows define them yourself.
#if defined(_MSC_VER) && !defined(__clang__)
#define IM_PRId64 "I64d"
#define IM_PRIu64 "I64u"
#define IM_PRIX64 "I64X"
#else
#define IM_PRId64 "lld"
#define IM_PRIu64 "llu"
#define IM_PRIX64 "llX"
#endif
//-----------------------------------------------------------------------------
// [SECTION] Generic helpers
// Note that the ImXXX helpers functions are lower-level than ImGui functions.
// ImGui functions or the ImGui context are never called/used from other ImXXX functions.
//-----------------------------------------------------------------------------
// - Helpers: Hashing
// - Helpers: Sorting
// - Helpers: Bit manipulation
// - Helpers: String
// - Helpers: Formatting
// - Helpers: UTF-8 <> wchar conversions
// - Helpers: ImVec2/ImVec4 operators
// - Helpers: Maths
// - Helpers: Geometry
// - Helper: ImVec1
// - Helper: ImVec2ih
// - Helper: ImRect
// - Helper: ImBitArray
// - Helper: ImBitVector
// - Helper: ImSpan<>, ImSpanAllocator<>
// - Helper: ImPool<>
// - Helper: ImChunkStream<>
// - Helper: ImGuiTextIndex
// - Helper: ImGuiStorage
//-----------------------------------------------------------------------------
// Helpers: Hashing
IMGUI_API ImGuiID ImHashData(const void* data, size_t data_size, ImGuiID seed = 0);
IMGUI_API ImGuiID ImHashStr(const char* data, size_t data_size = 0, ImGuiID seed = 0);
// Helpers: Sorting
#ifndef ImQsort
static inline void ImQsort(void* base, size_t count, size_t size_of_element, int(IMGUI_CDECL *compare_func)(void const*, void const*)) { if (count > 1) qsort(base, count, size_of_element, compare_func); }
#endif
// Helpers: Color Blending
IMGUI_API ImU32 ImAlphaBlendColors(ImU32 col_a, ImU32 col_b);
// Helpers: Bit manipulation
static inline bool ImIsPowerOfTwo(int v) { return v != 0 && (v & (v - 1)) == 0; }
static inline bool ImIsPowerOfTwo(ImU64 v) { return v != 0 && (v & (v - 1)) == 0; }
static inline int ImUpperPowerOfTwo(int v) { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
// Helpers: String
IMGUI_API int ImStricmp(const char* str1, const char* str2); // Case insensitive compare.
IMGUI_API int ImStrnicmp(const char* str1, const char* str2, size_t count); // Case insensitive compare to a certain count.
IMGUI_API void ImStrncpy(char* dst, const char* src, size_t count); // Copy to a certain count and always zero terminate (strncpy doesn't).
IMGUI_API char* ImStrdup(const char* str); // Duplicate a string.
IMGUI_API char* ImStrdupcpy(char* dst, size_t* p_dst_size, const char* str); // Copy in provided buffer, recreate buffer if needed.
IMGUI_API const char* ImStrchrRange(const char* str_begin, const char* str_end, char c); // Find first occurrence of 'c' in string range.
IMGUI_API const char* ImStreolRange(const char* str, const char* str_end); // End end-of-line
IMGUI_API const char* ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end); // Find a substring in a string range.
IMGUI_API void ImStrTrimBlanks(char* str); // Remove leading and trailing blanks from a buffer.
IMGUI_API const char* ImStrSkipBlank(const char* str); // Find first non-blank character.
IMGUI_API int ImStrlenW(const ImWchar* str); // Computer string length (ImWchar string)
IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin); // Find beginning-of-line (ImWchar string)
IM_MSVC_RUNTIME_CHECKS_OFF
static inline char ImToUpper(char c) { return (c >= 'a' && c <= 'z') ? c &= ~32 : c; }
static inline bool ImCharIsBlankA(char c) { return c == ' ' || c == '\t'; }
static inline bool ImCharIsBlankW(unsigned int c) { return c == ' ' || c == '\t' || c == 0x3000; }
static inline bool ImCharIsXdigitA(char c) { return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'); }
IM_MSVC_RUNTIME_CHECKS_RESTORE
// Helpers: Formatting
IMGUI_API int ImFormatString(char* buf, size_t buf_size, const char* fmt, ...) IM_FMTARGS(3);
IMGUI_API int ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args) IM_FMTLIST(3);
IMGUI_API void ImFormatStringToTempBuffer(const char** out_buf, const char** out_buf_end, const char* fmt, ...) IM_FMTARGS(3);
IMGUI_API void ImFormatStringToTempBufferV(const char** out_buf, const char** out_buf_end, const char* fmt, va_list args) IM_FMTLIST(3);
IMGUI_API const char* ImParseFormatFindStart(const char* format);
IMGUI_API const char* ImParseFormatFindEnd(const char* format);
IMGUI_API const char* ImParseFormatTrimDecorations(const char* format, char* buf, size_t buf_size);
IMGUI_API void ImParseFormatSanitizeForPrinting(const char* fmt_in, char* fmt_out, size_t fmt_out_size);
IMGUI_API const char* ImParseFormatSanitizeForScanning(const char* fmt_in, char* fmt_out, size_t fmt_out_size);
IMGUI_API int ImParseFormatPrecision(const char* format, int default_value);
// Helpers: UTF-8 <> wchar conversions
IMGUI_API const char* ImTextCharToUtf8(char out_buf[5], unsigned int c); // return out_buf
IMGUI_API int ImTextStrToUtf8(char* out_buf, int out_buf_size, const ImWchar* in_text, const ImWchar* in_text_end); // return output UTF-8 bytes count
IMGUI_API int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end); // read one character. return input UTF-8 bytes count
IMGUI_API int ImTextStrFromUtf8(ImWchar* out_buf, int out_buf_size, const char* in_text, const char* in_text_end, const char** in_remaining = NULL); // return input UTF-8 bytes count
IMGUI_API int ImTextCountCharsFromUtf8(const char* in_text, const char* in_text_end); // return number of UTF-8 code-points (NOT bytes count)
IMGUI_API int ImTextCountUtf8BytesFromChar(const char* in_text, const char* in_text_end); // return number of bytes to express one char in UTF-8
IMGUI_API int ImTextCountUtf8BytesFromStr(const ImWchar* in_text, const ImWchar* in_text_end); // return number of bytes to express string in UTF-8
IMGUI_API const char* ImTextFindPreviousUtf8Codepoint(const char* in_text_start, const char* in_text_curr); // return previous UTF-8 code-point.
IMGUI_API int ImTextCountLines(const char* in_text, const char* in_text_end); // return number of lines taken by text. trailing carriage return doesn't count as an extra line.
// Helpers: File System
#ifdef IMGUI_DISABLE_FILE_FUNCTIONS
#define IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
typedef void* ImFileHandle;
static inline ImFileHandle ImFileOpen(const char*, const char*) { return NULL; }
static inline bool ImFileClose(ImFileHandle) { return false; }
static inline ImU64 ImFileGetSize(ImFileHandle) { return (ImU64)-1; }
static inline ImU64 ImFileRead(void*, ImU64, ImU64, ImFileHandle) { return 0; }
static inline ImU64 ImFileWrite(const void*, ImU64, ImU64, ImFileHandle) { return 0; }
#endif
#ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
typedef FILE* ImFileHandle;
IMGUI_API ImFileHandle ImFileOpen(const char* filename, const char* mode);
IMGUI_API bool ImFileClose(ImFileHandle file);
IMGUI_API ImU64 ImFileGetSize(ImFileHandle file);
IMGUI_API ImU64 ImFileRead(void* data, ImU64 size, ImU64 count, ImFileHandle file);
IMGUI_API ImU64 ImFileWrite(const void* data, ImU64 size, ImU64 count, ImFileHandle file);
#else
#define IMGUI_DISABLE_TTY_FUNCTIONS // Can't use stdout, fflush if we are not using default file functions
#endif
IMGUI_API void* ImFileLoadToMemory(const char* filename, const char* mode, size_t* out_file_size = NULL, int padding_bytes = 0);
// Helpers: Maths
IM_MSVC_RUNTIME_CHECKS_OFF
// - Wrapper for standard libs functions. (Note that imgui_demo.cpp does _not_ use them to keep the code easy to copy)
#ifndef IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS
#define ImFabs(X) fabsf(X)
#define ImSqrt(X) sqrtf(X)
#define ImFmod(X, Y) fmodf((X), (Y))
#define ImCos(X) cosf(X)
#define ImSin(X) sinf(X)
#define ImAcos(X) acosf(X)
#define ImAtan2(Y, X) atan2f((Y), (X))
#define ImAtof(STR) atof(STR)
#define ImCeil(X) ceilf(X)
static inline float ImPow(float x, float y) { return powf(x, y); } // DragBehaviorT/SliderBehaviorT uses ImPow with either float/double and need the precision
static inline double ImPow(double x, double y) { return pow(x, y); }
static inline float ImLog(float x) { return logf(x); } // DragBehaviorT/SliderBehaviorT uses ImLog with either float/double and need the precision
static inline double ImLog(double x) { return log(x); }
static inline int ImAbs(int x) { return x < 0 ? -x : x; }
static inline float ImAbs(float x) { return fabsf(x); }
static inline double ImAbs(double x) { return fabs(x); }
static inline float ImSign(float x) { return (x < 0.0f) ? -1.0f : (x > 0.0f) ? 1.0f : 0.0f; } // Sign operator - returns -1, 0 or 1 based on sign of argument
static inline double ImSign(double x) { return (x < 0.0) ? -1.0 : (x > 0.0) ? 1.0 : 0.0; }
#ifdef IMGUI_ENABLE_SSE
static inline float ImRsqrt(float x) { return _mm_cvtss_f32(_mm_rsqrt_ss(_mm_set_ss(x))); }
#else
static inline float ImRsqrt(float x) { return 1.0f / sqrtf(x); }
#endif
static inline double ImRsqrt(double x) { return 1.0 / sqrt(x); }
#endif
// - ImMin/ImMax/ImClamp/ImLerp/ImSwap are used by widgets which support variety of types: signed/unsigned int/long long float/double
// (Exceptionally using templates here but we could also redefine them for those types)
template<typename T> static inline T ImMin(T lhs, T rhs) { return lhs < rhs ? lhs : rhs; }
template<typename T> static inline T ImMax(T lhs, T rhs) { return lhs >= rhs ? lhs : rhs; }
template<typename T> static inline T ImClamp(T v, T mn, T mx) { return (v < mn) ? mn : (v > mx) ? mx : v; }
template<typename T> static inline T ImLerp(T a, T b, float t) { return (T)(a + (b - a) * t); }
template<typename T> static inline void ImSwap(T& a, T& b) { T tmp = a; a = b; b = tmp; }
template<typename T> static inline T ImAddClampOverflow(T a, T b, T mn, T mx) { if (b < 0 && (a < mn - b)) return mn; if (b > 0 && (a > mx - b)) return mx; return a + b; }
template<typename T> static inline T ImSubClampOverflow(T a, T b, T mn, T mx) { if (b > 0 && (a < mn + b)) return mn; if (b < 0 && (a > mx + b)) return mx; return a - b; }
// - Misc maths helpers
static inline ImVec2 ImMin(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x < rhs.x ? lhs.x : rhs.x, lhs.y < rhs.y ? lhs.y : rhs.y); }
static inline ImVec2 ImMax(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x >= rhs.x ? lhs.x : rhs.x, lhs.y >= rhs.y ? lhs.y : rhs.y); }
static inline ImVec2 ImClamp(const ImVec2& v, const ImVec2&mn, const ImVec2&mx) { return ImVec2((v.x < mn.x) ? mn.x : (v.x > mx.x) ? mx.x : v.x, (v.y < mn.y) ? mn.y : (v.y > mx.y) ? mx.y : v.y); }
static inline ImVec2 ImLerp(const ImVec2& a, const ImVec2& b, float t) { return ImVec2(a.x + (b.x - a.x) * t, a.y + (b.y - a.y) * t); }
static inline ImVec2 ImLerp(const ImVec2& a, const ImVec2& b, const ImVec2& t) { return ImVec2(a.x + (b.x - a.x) * t.x, a.y + (b.y - a.y) * t.y); }
static inline ImVec4 ImLerp(const ImVec4& a, const ImVec4& b, float t) { return ImVec4(a.x + (b.x - a.x) * t, a.y + (b.y - a.y) * t, a.z + (b.z - a.z) * t, a.w + (b.w - a.w) * t); }
static inline float ImSaturate(float f) { return (f < 0.0f) ? 0.0f : (f > 1.0f) ? 1.0f : f; }
static inline float ImLengthSqr(const ImVec2& lhs) { return (lhs.x * lhs.x) + (lhs.y * lhs.y); }
static inline float ImLengthSqr(const ImVec4& lhs) { return (lhs.x * lhs.x) + (lhs.y * lhs.y) + (lhs.z * lhs.z) + (lhs.w * lhs.w); }
static inline float ImInvLength(const ImVec2& lhs, float fail_value) { float d = (lhs.x * lhs.x) + (lhs.y * lhs.y); if (d > 0.0f) return ImRsqrt(d); return fail_value; }
static inline float ImTrunc(float f) { return (float)(int)(f); }
static inline ImVec2 ImTrunc(const ImVec2& v) { return ImVec2((float)(int)(v.x), (float)(int)(v.y)); }
static inline float ImFloor(float f) { return (float)((f >= 0 || (float)(int)f == f) ? (int)f : (int)f - 1); } // Decent replacement for floorf()
static inline ImVec2 ImFloor(const ImVec2& v) { return ImVec2(ImFloor(v.x), ImFloor(v.y)); }
static inline int ImModPositive(int a, int b) { return (a + b) % b; }
static inline float ImDot(const ImVec2& a, const ImVec2& b) { return a.x * b.x + a.y * b.y; }
static inline ImVec2 ImRotate(const ImVec2& v, float cos_a, float sin_a) { return ImVec2(v.x * cos_a - v.y * sin_a, v.x * sin_a + v.y * cos_a); }
static inline float ImLinearSweep(float current, float target, float speed) { if (current < target) return ImMin(current + speed, target); if (current > target) return ImMax(current - speed, target); return current; }
static inline float ImLinearRemapClamp(float s0, float s1, float d0, float d1, float x) { return ImSaturate((x - s0) / (s1 - s0)) * (d1 - d0) + d0; }
static inline ImVec2 ImMul(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
static inline bool ImIsFloatAboveGuaranteedIntegerPrecision(float f) { return f <= -16777216 || f >= 16777216; }
static inline float ImExponentialMovingAverage(float avg, float sample, int n) { avg -= avg / n; avg += sample / n; return avg; }
IM_MSVC_RUNTIME_CHECKS_RESTORE
// Helpers: Geometry
IMGUI_API ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t);
IMGUI_API ImVec2 ImBezierCubicClosestPoint(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, int num_segments); // For curves with explicit number of segments
IMGUI_API ImVec2 ImBezierCubicClosestPointCasteljau(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, float tess_tol);// For auto-tessellated curves you can use tess_tol = style.CurveTessellationTol
IMGUI_API ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t);
IMGUI_API ImVec2 ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p);
IMGUI_API bool ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
IMGUI_API ImVec2 ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
IMGUI_API void ImTriangleBarycentricCoords(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p, float& out_u, float& out_v, float& out_w);
inline float ImTriangleArea(const ImVec2& a, const ImVec2& b, const ImVec2& c) { return ImFabs((a.x * (b.y - c.y)) + (b.x * (c.y - a.y)) + (c.x * (a.y - b.y))) * 0.5f; }
inline bool ImTriangleIsClockwise(const ImVec2& a, const ImVec2& b, const ImVec2& c) { return ((b.x - a.x) * (c.y - b.y)) - ((c.x - b.x) * (b.y - a.y)) > 0.0f; }
// Helper: ImVec1 (1D vector)
// (this odd construct is used to facilitate the transition between 1D and 2D, and the maintenance of some branches/patches)
IM_MSVC_RUNTIME_CHECKS_OFF
struct ImVec1
{
float x;
constexpr ImVec1() : x(0.0f) { }
constexpr ImVec1(float _x) : x(_x) { }
};
// Helper: ImVec2ih (2D vector, half-size integer, for long-term packed storage)
struct ImVec2ih
{
short x, y;
constexpr ImVec2ih() : x(0), y(0) {}
constexpr ImVec2ih(short _x, short _y) : x(_x), y(_y) {}
constexpr explicit ImVec2ih(const ImVec2& rhs) : x((short)rhs.x), y((short)rhs.y) {}
};
// Helper: ImRect (2D axis aligned bounding-box)
// NB: we can't rely on ImVec2 math operators being available here!
struct IMGUI_API ImRect
{
ImVec2 Min; // Upper-left
ImVec2 Max; // Lower-right
constexpr ImRect() : Min(0.0f, 0.0f), Max(0.0f, 0.0f) {}
constexpr ImRect(const ImVec2& min, const ImVec2& max) : Min(min), Max(max) {}
constexpr ImRect(const ImVec4& v) : Min(v.x, v.y), Max(v.z, v.w) {}
constexpr ImRect(float x1, float y1, float x2, float y2) : Min(x1, y1), Max(x2, y2) {}
ImVec2 GetCenter() const { return ImVec2((Min.x + Max.x) * 0.5f, (Min.y + Max.y) * 0.5f); }
ImVec2 GetSize() const { return ImVec2(Max.x - Min.x, Max.y - Min.y); }
float GetWidth() const { return Max.x - Min.x; }
float GetHeight() const { return Max.y - Min.y; }
float GetArea() const { return (Max.x - Min.x) * (Max.y - Min.y); }
ImVec2 GetTL() const { return Min; } // Top-left
ImVec2 GetTR() const { return ImVec2(Max.x, Min.y); } // Top-right
ImVec2 GetBL() const { return ImVec2(Min.x, Max.y); } // Bottom-left
ImVec2 GetBR() const { return Max; } // Bottom-right
bool Contains(const ImVec2& p) const { return p.x >= Min.x && p.y >= Min.y && p.x < Max.x && p.y < Max.y; }
bool Contains(const ImRect& r) const { return r.Min.x >= Min.x && r.Min.y >= Min.y && r.Max.x <= Max.x && r.Max.y <= Max.y; }
bool ContainsWithPad(const ImVec2& p, const ImVec2& pad) const { return p.x >= Min.x - pad.x && p.y >= Min.y - pad.y && p.x < Max.x + pad.x && p.y < Max.y + pad.y; }
bool Overlaps(const ImRect& r) const { return r.Min.y < Max.y && r.Max.y > Min.y && r.Min.x < Max.x && r.Max.x > Min.x; }
void Add(const ImVec2& p) { if (Min.x > p.x) Min.x = p.x; if (Min.y > p.y) Min.y = p.y; if (Max.x < p.x) Max.x = p.x; if (Max.y < p.y) Max.y = p.y; }
void Add(const ImRect& r) { if (Min.x > r.Min.x) Min.x = r.Min.x; if (Min.y > r.Min.y) Min.y = r.Min.y; if (Max.x < r.Max.x) Max.x = r.Max.x; if (Max.y < r.Max.y) Max.y = r.Max.y; }
void Expand(const float amount) { Min.x -= amount; Min.y -= amount; Max.x += amount; Max.y += amount; }
void Expand(const ImVec2& amount) { Min.x -= amount.x; Min.y -= amount.y; Max.x += amount.x; Max.y += amount.y; }
void Translate(const ImVec2& d) { Min.x += d.x; Min.y += d.y; Max.x += d.x; Max.y += d.y; }
void TranslateX(float dx) { Min.x += dx; Max.x += dx; }
void TranslateY(float dy) { Min.y += dy; Max.y += dy; }
void ClipWith(const ImRect& r) { Min = ImMax(Min, r.Min); Max = ImMin(Max, r.Max); } // Simple version, may lead to an inverted rectangle, which is fine for Contains/Overlaps test but not for display.
void ClipWithFull(const ImRect& r) { Min = ImClamp(Min, r.Min, r.Max); Max = ImClamp(Max, r.Min, r.Max); } // Full version, ensure both points are fully clipped.
void Floor() { Min.x = IM_TRUNC(Min.x); Min.y = IM_TRUNC(Min.y); Max.x = IM_TRUNC(Max.x); Max.y = IM_TRUNC(Max.y); }
bool IsInverted() const { return Min.x > Max.x || Min.y > Max.y; }
ImVec4 ToVec4() const { return ImVec4(Min.x, Min.y, Max.x, Max.y); }
};
// Helper: ImBitArray
#define IM_BITARRAY_TESTBIT(_ARRAY, _N) ((_ARRAY[(_N) >> 5] & ((ImU32)1 << ((_N) & 31))) != 0) // Macro version of ImBitArrayTestBit(): ensure args have side-effect or are costly!
#define IM_BITARRAY_CLEARBIT(_ARRAY, _N) ((_ARRAY[(_N) >> 5] &= ~((ImU32)1 << ((_N) & 31)))) // Macro version of ImBitArrayClearBit(): ensure args have side-effect or are costly!
inline size_t ImBitArrayGetStorageSizeInBytes(int bitcount) { return (size_t)((bitcount + 31) >> 5) << 2; }
inline void ImBitArrayClearAllBits(ImU32* arr, int bitcount){ memset(arr, 0, ImBitArrayGetStorageSizeInBytes(bitcount)); }
inline bool ImBitArrayTestBit(const ImU32* arr, int n) { ImU32 mask = (ImU32)1 << (n & 31); return (arr[n >> 5] & mask) != 0; }
inline void ImBitArrayClearBit(ImU32* arr, int n) { ImU32 mask = (ImU32)1 << (n & 31); arr[n >> 5] &= ~mask; }
inline void ImBitArraySetBit(ImU32* arr, int n) { ImU32 mask = (ImU32)1 << (n & 31); arr[n >> 5] |= mask; }
inline void ImBitArraySetBitRange(ImU32* arr, int n, int n2) // Works on range [n..n2)
{
n2--;
while (n <= n2)
{
int a_mod = (n & 31);
int b_mod = (n2 > (n | 31) ? 31 : (n2 & 31)) + 1;
ImU32 mask = (ImU32)(((ImU64)1 << b_mod) - 1) & ~(ImU32)(((ImU64)1 << a_mod) - 1);
arr[n >> 5] |= mask;
n = (n + 32) & ~31;
}
}
typedef ImU32* ImBitArrayPtr; // Name for use in structs
// Helper: ImBitArray class (wrapper over ImBitArray functions)
// Store 1-bit per value.
template<int BITCOUNT, int OFFSET = 0>
struct ImBitArray
{
ImU32 Storage[(BITCOUNT + 31) >> 5];
ImBitArray() { ClearAllBits(); }
void ClearAllBits() { memset(Storage, 0, sizeof(Storage)); }
void SetAllBits() { memset(Storage, 255, sizeof(Storage)); }
bool TestBit(int n) const { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return IM_BITARRAY_TESTBIT(Storage, n); }
void SetBit(int n) { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArraySetBit(Storage, n); }
void ClearBit(int n) { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArrayClearBit(Storage, n); }
void SetBitRange(int n, int n2) { n += OFFSET; n2 += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT && n2 > n && n2 <= BITCOUNT); ImBitArraySetBitRange(Storage, n, n2); } // Works on range [n..n2)
bool operator[](int n) const { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return IM_BITARRAY_TESTBIT(Storage, n); }
};
// Helper: ImBitVector
// Store 1-bit per value.
struct IMGUI_API ImBitVector
{
ImVector<ImU32> Storage;
void Create(int sz) { Storage.resize((sz + 31) >> 5); memset(Storage.Data, 0, (size_t)Storage.Size * sizeof(Storage.Data[0])); }
void Clear() { Storage.clear(); }
bool TestBit(int n) const { IM_ASSERT(n < (Storage.Size << 5)); return IM_BITARRAY_TESTBIT(Storage.Data, n); }
void SetBit(int n) { IM_ASSERT(n < (Storage.Size << 5)); ImBitArraySetBit(Storage.Data, n); }
void ClearBit(int n) { IM_ASSERT(n < (Storage.Size << 5)); ImBitArrayClearBit(Storage.Data, n); }
};
IM_MSVC_RUNTIME_CHECKS_RESTORE
// Helper: ImSpan<>
// Pointing to a span of data we don't own.
template<typename T>
struct ImSpan
{
T* Data;
T* DataEnd;
// Constructors, destructor
inline ImSpan() { Data = DataEnd = NULL; }
inline ImSpan(T* data, int size) { Data = data; DataEnd = data + size; }
inline ImSpan(T* data, T* data_end) { Data = data; DataEnd = data_end; }
inline void set(T* data, int size) { Data = data; DataEnd = data + size; }
inline void set(T* data, T* data_end) { Data = data; DataEnd = data_end; }
inline int size() const { return (int)(ptrdiff_t)(DataEnd - Data); }
inline int size_in_bytes() const { return (int)(ptrdiff_t)(DataEnd - Data) * (int)sizeof(T); }
inline T& operator[](int i) { T* p = Data + i; IM_ASSERT(p >= Data && p < DataEnd); return *p; }
inline const T& operator[](int i) const { const T* p = Data + i; IM_ASSERT(p >= Data && p < DataEnd); return *p; }
inline T* begin() { return Data; }
inline const T* begin() const { return Data; }
inline T* end() { return DataEnd; }
inline const T* end() const { return DataEnd; }
// Utilities
inline int index_from_ptr(const T* it) const { IM_ASSERT(it >= Data && it < DataEnd); const ptrdiff_t off = it - Data; return (int)off; }
};
// Helper: ImSpanAllocator<>
// Facilitate storing multiple chunks into a single large block (the "arena")
// - Usage: call Reserve() N times, allocate GetArenaSizeInBytes() worth, pass it to SetArenaBasePtr(), call GetSpan() N times to retrieve the aligned ranges.
template<int CHUNKS>
struct ImSpanAllocator
{
char* BasePtr;
int CurrOff;
int CurrIdx;
int Offsets[CHUNKS];
int Sizes[CHUNKS];
ImSpanAllocator() { memset(this, 0, sizeof(*this)); }
inline void Reserve(int n, size_t sz, int a=4) { IM_ASSERT(n == CurrIdx && n < CHUNKS); CurrOff = IM_MEMALIGN(CurrOff, a); Offsets[n] = CurrOff; Sizes[n] = (int)sz; CurrIdx++; CurrOff += (int)sz; }
inline int GetArenaSizeInBytes() { return CurrOff; }
inline void SetArenaBasePtr(void* base_ptr) { BasePtr = (char*)base_ptr; }
inline void* GetSpanPtrBegin(int n) { IM_ASSERT(n >= 0 && n < CHUNKS && CurrIdx == CHUNKS); return (void*)(BasePtr + Offsets[n]); }
inline void* GetSpanPtrEnd(int n) { IM_ASSERT(n >= 0 && n < CHUNKS && CurrIdx == CHUNKS); return (void*)(BasePtr + Offsets[n] + Sizes[n]); }
template<typename T>
inline void GetSpan(int n, ImSpan<T>* span) { span->set((T*)GetSpanPtrBegin(n), (T*)GetSpanPtrEnd(n)); }
};
// Helper: ImPool<>
// Basic keyed storage for contiguous instances, slow/amortized insertion, O(1) indexable, O(Log N) queries by ID over a dense/hot buffer,
// Honor constructor/destructor. Add/remove invalidate all pointers. Indexes have the same lifetime as the associated object.
typedef int ImPoolIdx;
template<typename T>
struct ImPool
{
ImVector<T> Buf; // Contiguous data
ImGuiStorage Map; // ID->Index
ImPoolIdx FreeIdx; // Next free idx to use
ImPoolIdx AliveCount; // Number of active/alive items (for display purpose)
ImPool() { FreeIdx = AliveCount = 0; }
~ImPool() { Clear(); }
T* GetByKey(ImGuiID key) { int idx = Map.GetInt(key, -1); return (idx != -1) ? &Buf[idx] : NULL; }
T* GetByIndex(ImPoolIdx n) { return &Buf[n]; }
ImPoolIdx GetIndex(const T* p) const { IM_ASSERT(p >= Buf.Data && p < Buf.Data + Buf.Size); return (ImPoolIdx)(p - Buf.Data); }
T* GetOrAddByKey(ImGuiID key) { int* p_idx = Map.GetIntRef(key, -1); if (*p_idx != -1) return &Buf[*p_idx]; *p_idx = FreeIdx; return Add(); }
bool Contains(const T* p) const { return (p >= Buf.Data && p < Buf.Data + Buf.Size); }
void Clear() { for (int n = 0; n < Map.Data.Size; n++) { int idx = Map.Data[n].val_i; if (idx != -1) Buf[idx].~T(); } Map.Clear(); Buf.clear(); FreeIdx = AliveCount = 0; }
T* Add() { int idx = FreeIdx; if (idx == Buf.Size) { Buf.resize(Buf.Size + 1); FreeIdx++; } else { FreeIdx = *(int*)&Buf[idx]; } IM_PLACEMENT_NEW(&Buf[idx]) T(); AliveCount++; return &Buf[idx]; }
void Remove(ImGuiID key, const T* p) { Remove(key, GetIndex(p)); }
void Remove(ImGuiID key, ImPoolIdx idx) { Buf[idx].~T(); *(int*)&Buf[idx] = FreeIdx; FreeIdx = idx; Map.SetInt(key, -1); AliveCount--; }
void Reserve(int capacity) { Buf.reserve(capacity); Map.Data.reserve(capacity); }
// To iterate a ImPool: for (int n = 0; n < pool.GetMapSize(); n++) if (T* t = pool.TryGetMapData(n)) { ... }
// Can be avoided if you know .Remove() has never been called on the pool, or AliveCount == GetMapSize()
int GetAliveCount() const { return AliveCount; } // Number of active/alive items in the pool (for display purpose)
int GetBufSize() const { return Buf.Size; }
int GetMapSize() const { return Map.Data.Size; } // It is the map we need iterate to find valid items, since we don't have "alive" storage anywhere
T* TryGetMapData(ImPoolIdx n) { int idx = Map.Data[n].val_i; if (idx == -1) return NULL; return GetByIndex(idx); }
};
// Helper: ImChunkStream<>
// Build and iterate a contiguous stream of variable-sized structures.
// This is used by Settings to store persistent data while reducing allocation count.
// We store the chunk size first, and align the final size on 4 bytes boundaries.
// The tedious/zealous amount of casting is to avoid -Wcast-align warnings.
template<typename T>
struct ImChunkStream
{
ImVector<char> Buf;
void clear() { Buf.clear(); }
bool empty() const { return Buf.Size == 0; }
int size() const { return Buf.Size; }
T* alloc_chunk(size_t sz) { size_t HDR_SZ = 4; sz = IM_MEMALIGN(HDR_SZ + sz, 4u); int off = Buf.Size; Buf.resize(off + (int)sz); ((int*)(void*)(Buf.Data + off))[0] = (int)sz; return (T*)(void*)(Buf.Data + off + (int)HDR_SZ); }
T* begin() { size_t HDR_SZ = 4; if (!Buf.Data) return NULL; return (T*)(void*)(Buf.Data + HDR_SZ); }
T* next_chunk(T* p) { size_t HDR_SZ = 4; IM_ASSERT(p >= begin() && p < end()); p = (T*)(void*)((char*)(void*)p + chunk_size(p)); if (p == (T*)(void*)((char*)end() + HDR_SZ)) return (T*)0; IM_ASSERT(p < end()); return p; }
int chunk_size(const T* p) { return ((const int*)p)[-1]; }
T* end() { return (T*)(void*)(Buf.Data + Buf.Size); }
int offset_from_ptr(const T* p) { IM_ASSERT(p >= begin() && p < end()); const ptrdiff_t off = (const char*)p - Buf.Data; return (int)off; }
T* ptr_from_offset(int off) { IM_ASSERT(off >= 4 && off < Buf.Size); return (T*)(void*)(Buf.Data + off); }
void swap(ImChunkStream<T>& rhs) { rhs.Buf.swap(Buf); }
};
// Helper: ImGuiTextIndex
// Maintain a line index for a text buffer. This is a strong candidate to be moved into the public API.
struct ImGuiTextIndex
{
ImVector<int> LineOffsets;
int EndOffset = 0; // Because we don't own text buffer we need to maintain EndOffset (may bake in LineOffsets?)
void clear() { LineOffsets.clear(); EndOffset = 0; }
int size() { return LineOffsets.Size; }
const char* get_line_begin(const char* base, int n) { return base + LineOffsets[n]; }
const char* get_line_end(const char* base, int n) { return base + (n + 1 < LineOffsets.Size ? (LineOffsets[n + 1] - 1) : EndOffset); }
void append(const char* base, int old_size, int new_size);
};
// Helper: ImGuiStorage
IMGUI_API ImGuiStoragePair* ImLowerBound(ImGuiStoragePair* in_begin, ImGuiStoragePair* in_end, ImGuiID key);
//-----------------------------------------------------------------------------
// [SECTION] ImDrawList support
//-----------------------------------------------------------------------------
// ImDrawList: Helper function to calculate a circle's segment count given its radius and a "maximum error" value.
// Estimation of number of circle segment based on error is derived using method described in https://stackoverflow.com/a/2244088/15194693
// Number of segments (N) is calculated using equation:
// N = ceil ( pi / acos(1 - error / r) ) where r > 0, error <= r
// Our equation is significantly simpler that one in the post thanks for choosing segment that is
// perpendicular to X axis. Follow steps in the article from this starting condition and you will
// will get this result.
//
// Rendering circles with an odd number of segments, while mathematically correct will produce
// asymmetrical results on the raster grid. Therefore we're rounding N to next even number (7->8, 8->8, 9->10 etc.)
#define IM_ROUNDUP_TO_EVEN(_V) ((((_V) + 1) / 2) * 2)
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MIN 4
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX 512
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(_RAD,_MAXERROR) ImClamp(IM_ROUNDUP_TO_EVEN((int)ImCeil(IM_PI / ImAcos(1 - ImMin((_MAXERROR), (_RAD)) / (_RAD)))), IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MIN, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX)
// Raw equation from IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC rewritten for 'r' and 'error'.
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(_N,_MAXERROR) ((_MAXERROR) / (1 - ImCos(IM_PI / ImMax((float)(_N), IM_PI))))
#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_ERROR(_N,_RAD) ((1 - ImCos(IM_PI / ImMax((float)(_N), IM_PI))) / (_RAD))
// ImDrawList: Lookup table size for adaptive arc drawing, cover full circle.
#ifndef IM_DRAWLIST_ARCFAST_TABLE_SIZE
#define IM_DRAWLIST_ARCFAST_TABLE_SIZE 48 // Number of samples in lookup table.
#endif
#define IM_DRAWLIST_ARCFAST_SAMPLE_MAX IM_DRAWLIST_ARCFAST_TABLE_SIZE // Sample index _PathArcToFastEx() for 360 angle.
// Data shared between all ImDrawList instances
// You may want to create your own instance of this if you want to use ImDrawList completely without ImGui. In that case, watch out for future changes to this structure.
struct IMGUI_API ImDrawListSharedData
{
ImVec2 TexUvWhitePixel; // UV of white pixel in the atlas
ImFont* Font; // Current/default font (optional, for simplified AddText overload)
float FontSize; // Current/default font size (optional, for simplified AddText overload)
float FontScale; // Current/default font scale (== FontSize / Font->FontSize)
float CurveTessellationTol; // Tessellation tolerance when using PathBezierCurveTo()
float CircleSegmentMaxError; // Number of circle segments to use per pixel of radius for AddCircle() etc
ImVec4 ClipRectFullscreen; // Value for PushClipRectFullscreen()
ImDrawListFlags InitialFlags; // Initial flags at the beginning of the frame (it is possible to alter flags on a per-drawlist basis afterwards)
// [Internal] Temp write buffer
ImVector<ImVec2> TempBuffer;
// [Internal] Lookup tables
ImVec2 ArcFastVtx[IM_DRAWLIST_ARCFAST_TABLE_SIZE]; // Sample points on the quarter of the circle.
float ArcFastRadiusCutoff; // Cutoff radius after which arc drawing will fallback to slower PathArcTo()
ImU8 CircleSegmentCounts[64]; // Precomputed segment count for given radius before we calculate it dynamically (to avoid calculation overhead)
const ImVec4* TexUvLines; // UV of anti-aliased lines in the atlas
ImDrawListSharedData();
void SetCircleTessellationMaxError(float max_error);
};
struct ImDrawDataBuilder
{
ImVector<ImDrawList*>* Layers[2]; // Pointers to global layers for: regular, tooltip. LayersP[0] is owned by DrawData.
ImVector<ImDrawList*> LayerData1;
ImDrawDataBuilder() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] Data types support
//-----------------------------------------------------------------------------
struct ImGuiDataVarInfo
{
ImGuiDataType Type;
ImU32 Count; // 1+
ImU32 Offset; // Offset in parent structure
void* GetVarPtr(void* parent) const { return (void*)((unsigned char*)parent + Offset); }
};
struct ImGuiDataTypeStorage
{
ImU8 Data[8]; // Opaque storage to fit any data up to ImGuiDataType_COUNT
};
// Type information associated to one ImGuiDataType. Retrieve with DataTypeGetInfo().
struct ImGuiDataTypeInfo
{
size_t Size; // Size in bytes
const char* Name; // Short descriptive name for the type, for debugging
const char* PrintFmt; // Default printf format for the type
const char* ScanFmt; // Default scanf format for the type
};
// Extend ImGuiDataType_
enum ImGuiDataTypePrivate_
{
ImGuiDataType_String = ImGuiDataType_COUNT + 1,
ImGuiDataType_Pointer,
ImGuiDataType_ID,
};
//-----------------------------------------------------------------------------
// [SECTION] Widgets support: flags, enums, data structures
//-----------------------------------------------------------------------------
// Extend ImGuiItemFlags
// - input: PushItemFlag() manipulates g.CurrentItemFlags, ItemAdd() calls may add extra flags.
// - output: stored in g.LastItemData.InFlags
enum ImGuiItemFlagsPrivate_
{
// Controlled by user
ImGuiItemFlags_Disabled = 1 << 10, // false // Disable interactions (DOES NOT affect visuals, see BeginDisabled()/EndDisabled() for full disable feature, and github #211).
ImGuiItemFlags_ReadOnly = 1 << 11, // false // [ALPHA] Allow hovering interactions but underlying value is not changed.
ImGuiItemFlags_MixedValue = 1 << 12, // false // [BETA] Represent a mixed/indeterminate value, generally multi-selection where values differ. Currently only supported by Checkbox() (later should support all sorts of widgets)
ImGuiItemFlags_NoWindowHoverableCheck = 1 << 13, // false // Disable hoverable check in ItemHoverable()
ImGuiItemFlags_AllowOverlap = 1 << 14, // false // Allow being overlapped by another widget. Not-hovered to Hovered transition deferred by a frame.
// Controlled by widget code
ImGuiItemFlags_Inputable = 1 << 20, // false // [WIP] Auto-activate input mode when tab focused. Currently only used and supported by a few items before it becomes a generic feature.
ImGuiItemFlags_HasSelectionUserData = 1 << 21, // false // Set by SetNextItemSelectionUserData()
ImGuiItemFlags_IsMultiSelect = 1 << 22, // false // Set by SetNextItemSelectionUserData()
ImGuiItemFlags_Default_ = ImGuiItemFlags_AutoClosePopups, // Please don't change, use PushItemFlag() instead.
// Obsolete
//ImGuiItemFlags_SelectableDontClosePopup = !ImGuiItemFlags_AutoClosePopups, // Can't have a redirect as we inverted the behavior
};
// Status flags for an already submitted item
// - output: stored in g.LastItemData.StatusFlags
enum ImGuiItemStatusFlags_
{
ImGuiItemStatusFlags_None = 0,
ImGuiItemStatusFlags_HoveredRect = 1 << 0, // Mouse position is within item rectangle (does NOT mean that the window is in correct z-order and can be hovered!, this is only one part of the most-common IsItemHovered test)
ImGuiItemStatusFlags_HasDisplayRect = 1 << 1, // g.LastItemData.DisplayRect is valid
ImGuiItemStatusFlags_Edited = 1 << 2, // Value exposed by item was edited in the current frame (should match the bool return value of most widgets)
ImGuiItemStatusFlags_ToggledSelection = 1 << 3, // Set when Selectable(), TreeNode() reports toggling a selection. We can't report "Selected", only state changes, in order to easily handle clipping with less issues.
ImGuiItemStatusFlags_ToggledOpen = 1 << 4, // Set when TreeNode() reports toggling their open state.
ImGuiItemStatusFlags_HasDeactivated = 1 << 5, // Set if the widget/group is able to provide data for the ImGuiItemStatusFlags_Deactivated flag.
ImGuiItemStatusFlags_Deactivated = 1 << 6, // Only valid if ImGuiItemStatusFlags_HasDeactivated is set.
ImGuiItemStatusFlags_HoveredWindow = 1 << 7, // Override the HoveredWindow test to allow cross-window hover testing.
ImGuiItemStatusFlags_Visible = 1 << 8, // [WIP] Set when item is overlapping the current clipping rectangle (Used internally. Please don't use yet: API/system will change as we refactor Itemadd()).
ImGuiItemStatusFlags_HasClipRect = 1 << 9, // g.LastItemData.ClipRect is valid.
ImGuiItemStatusFlags_HasShortcut = 1 << 10, // g.LastItemData.Shortcut valid. Set by SetNextItemShortcut() -> ItemAdd().
// Additional status + semantic for ImGuiTestEngine
#ifdef IMGUI_ENABLE_TEST_ENGINE
ImGuiItemStatusFlags_Openable = 1 << 20, // Item is an openable (e.g. TreeNode)
ImGuiItemStatusFlags_Opened = 1 << 21, // Opened status
ImGuiItemStatusFlags_Checkable = 1 << 22, // Item is a checkable (e.g. CheckBox, MenuItem)
ImGuiItemStatusFlags_Checked = 1 << 23, // Checked status
ImGuiItemStatusFlags_Inputable = 1 << 24, // Item is a text-inputable (e.g. InputText, SliderXXX, DragXXX)
#endif
};
// Extend ImGuiHoveredFlags_
enum ImGuiHoveredFlagsPrivate_
{
ImGuiHoveredFlags_DelayMask_ = ImGuiHoveredFlags_DelayNone | ImGuiHoveredFlags_DelayShort | ImGuiHoveredFlags_DelayNormal | ImGuiHoveredFlags_NoSharedDelay,
ImGuiHoveredFlags_AllowedMaskForIsWindowHovered = ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_AnyWindow | ImGuiHoveredFlags_NoPopupHierarchy | ImGuiHoveredFlags_DockHierarchy | ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem | ImGuiHoveredFlags_ForTooltip | ImGuiHoveredFlags_Stationary,
ImGuiHoveredFlags_AllowedMaskForIsItemHovered = ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem | ImGuiHoveredFlags_AllowWhenOverlapped | ImGuiHoveredFlags_AllowWhenDisabled | ImGuiHoveredFlags_NoNavOverride | ImGuiHoveredFlags_ForTooltip | ImGuiHoveredFlags_Stationary | ImGuiHoveredFlags_DelayMask_,
};
// Extend ImGuiInputTextFlags_
enum ImGuiInputTextFlagsPrivate_
{
// [Internal]
ImGuiInputTextFlags_Multiline = 1 << 26, // For internal use by InputTextMultiline()
ImGuiInputTextFlags_NoMarkEdited = 1 << 27, // For internal use by functions using InputText() before reformatting data
ImGuiInputTextFlags_MergedItem = 1 << 28, // For internal use by TempInputText(), will skip calling ItemAdd(). Require bounding-box to strictly match.
ImGuiInputTextFlags_LocalizeDecimalPoint= 1 << 29, // For internal use by InputScalar() and TempInputScalar()
};
// Extend ImGuiButtonFlags_
enum ImGuiButtonFlagsPrivate_
{
ImGuiButtonFlags_PressedOnClick = 1 << 4, // return true on click (mouse down event)
ImGuiButtonFlags_PressedOnClickRelease = 1 << 5, // [Default] return true on click + release on same item <-- this is what the majority of Button are using
ImGuiButtonFlags_PressedOnClickReleaseAnywhere = 1 << 6, // return true on click + release even if the release event is not done while hovering the item
ImGuiButtonFlags_PressedOnRelease = 1 << 7, // return true on release (default requires click+release)
ImGuiButtonFlags_PressedOnDoubleClick = 1 << 8, // return true on double-click (default requires click+release)
ImGuiButtonFlags_PressedOnDragDropHold = 1 << 9, // return true when held into while we are drag and dropping another item (used by e.g. tree nodes, collapsing headers)
ImGuiButtonFlags_Repeat = 1 << 10, // hold to repeat
ImGuiButtonFlags_FlattenChildren = 1 << 11, // allow interactions even if a child window is overlapping
ImGuiButtonFlags_AllowOverlap = 1 << 12, // require previous frame HoveredId to either match id or be null before being usable.
ImGuiButtonFlags_DontClosePopups = 1 << 13, // disable automatically closing parent popup on press // [UNUSED]
//ImGuiButtonFlags_Disabled = 1 << 14, // disable interactions -> use BeginDisabled() or ImGuiItemFlags_Disabled
ImGuiButtonFlags_AlignTextBaseLine = 1 << 15, // vertically align button to match text baseline - ButtonEx() only // FIXME: Should be removed and handled by SmallButton(), not possible currently because of DC.CursorPosPrevLine
ImGuiButtonFlags_NoKeyModifiers = 1 << 16, // disable mouse interaction if a key modifier is held
ImGuiButtonFlags_NoHoldingActiveId = 1 << 17, // don't set ActiveId while holding the mouse (ImGuiButtonFlags_PressedOnClick only)
ImGuiButtonFlags_NoNavFocus = 1 << 18, // don't override navigation focus when activated (FIXME: this is essentially used every time an item uses ImGuiItemFlags_NoNav, but because legacy specs don't requires LastItemData to be set ButtonBehavior(), we can't poll g.LastItemData.InFlags)
ImGuiButtonFlags_NoHoveredOnFocus = 1 << 19, // don't report as hovered when nav focus is on this item
ImGuiButtonFlags_NoSetKeyOwner = 1 << 20, // don't set key/input owner on the initial click (note: mouse buttons are keys! often, the key in question will be ImGuiKey_MouseLeft!)
ImGuiButtonFlags_NoTestKeyOwner = 1 << 21, // don't test key/input owner when polling the key (note: mouse buttons are keys! often, the key in question will be ImGuiKey_MouseLeft!)
ImGuiButtonFlags_PressedOnMask_ = ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnClickReleaseAnywhere | ImGuiButtonFlags_PressedOnRelease | ImGuiButtonFlags_PressedOnDoubleClick | ImGuiButtonFlags_PressedOnDragDropHold,
ImGuiButtonFlags_PressedOnDefault_ = ImGuiButtonFlags_PressedOnClickRelease,
};
// Extend ImGuiComboFlags_
enum ImGuiComboFlagsPrivate_
{
ImGuiComboFlags_CustomPreview = 1 << 20, // enable BeginComboPreview()
};
// Extend ImGuiSliderFlags_
enum ImGuiSliderFlagsPrivate_
{
ImGuiSliderFlags_Vertical = 1 << 20, // Should this slider be orientated vertically?
ImGuiSliderFlags_ReadOnly = 1 << 21, // Consider using g.NextItemData.ItemFlags |= ImGuiItemFlags_ReadOnly instead.
};
// Extend ImGuiSelectableFlags_
enum ImGuiSelectableFlagsPrivate_
{
// NB: need to be in sync with last value of ImGuiSelectableFlags_
ImGuiSelectableFlags_NoHoldingActiveID = 1 << 20,
ImGuiSelectableFlags_SelectOnNav = 1 << 21, // (WIP) Auto-select when moved into. This is not exposed in public API as to handle multi-select and modifiers we will need user to explicitly control focus scope. May be replaced with a BeginSelection() API.
ImGuiSelectableFlags_SelectOnClick = 1 << 22, // Override button behavior to react on Click (default is Click+Release)
ImGuiSelectableFlags_SelectOnRelease = 1 << 23, // Override button behavior to react on Release (default is Click+Release)
ImGuiSelectableFlags_SpanAvailWidth = 1 << 24, // Span all avail width even if we declared less for layout purpose. FIXME: We may be able to remove this (added in 6251d379, 2bcafc86 for menus)
ImGuiSelectableFlags_SetNavIdOnHover = 1 << 25, // Set Nav/Focus ID on mouse hover (used by MenuItem)
ImGuiSelectableFlags_NoPadWithHalfSpacing = 1 << 26, // Disable padding each side with ItemSpacing * 0.5f
ImGuiSelectableFlags_NoSetKeyOwner = 1 << 27, // Don't set key/input owner on the initial click (note: mouse buttons are keys! often, the key in question will be ImGuiKey_MouseLeft!)
};
// Extend ImGuiTreeNodeFlags_
enum ImGuiTreeNodeFlagsPrivate_
{
ImGuiTreeNodeFlags_ClipLabelForTrailingButton = 1 << 28,// FIXME-WIP: Hard-coded for CollapsingHeader()
ImGuiTreeNodeFlags_UpsideDownArrow = 1 << 29,// FIXME-WIP: Turn Down arrow into an Up arrow, but reversed trees (#6517)
ImGuiTreeNodeFlags_OpenOnMask_ = ImGuiTreeNodeFlags_OpenOnDoubleClick | ImGuiTreeNodeFlags_OpenOnArrow,
};
enum ImGuiSeparatorFlags_
{
ImGuiSeparatorFlags_None = 0,
ImGuiSeparatorFlags_Horizontal = 1 << 0, // Axis default to current layout type, so generally Horizontal unless e.g. in a menu bar
ImGuiSeparatorFlags_Vertical = 1 << 1,
ImGuiSeparatorFlags_SpanAllColumns = 1 << 2, // Make separator cover all columns of a legacy Columns() set.
};
// Flags for FocusWindow(). This is not called ImGuiFocusFlags to avoid confusion with public-facing ImGuiFocusedFlags.
// FIXME: Once we finishing replacing more uses of GetTopMostPopupModal()+IsWindowWithinBeginStackOf()
// and FindBlockingModal() with this, we may want to change the flag to be opt-out instead of opt-in.
enum ImGuiFocusRequestFlags_
{
ImGuiFocusRequestFlags_None = 0,
ImGuiFocusRequestFlags_RestoreFocusedChild = 1 << 0, // Find last focused child (if any) and focus it instead.
ImGuiFocusRequestFlags_UnlessBelowModal = 1 << 1, // Do not set focus if the window is below a modal.
};
enum ImGuiTextFlags_
{
ImGuiTextFlags_None = 0,
ImGuiTextFlags_NoWidthForLargeClippedText = 1 << 0,
};
enum ImGuiTooltipFlags_
{
ImGuiTooltipFlags_None = 0,
ImGuiTooltipFlags_OverridePrevious = 1 << 1, // Clear/ignore previously submitted tooltip (defaults to append)
};
// FIXME: this is in development, not exposed/functional as a generic feature yet.
// Horizontal/Vertical enums are fixed to 0/1 so they may be used to index ImVec2
enum ImGuiLayoutType_
{
ImGuiLayoutType_Horizontal = 0,
ImGuiLayoutType_Vertical = 1
};
enum ImGuiLogType
{
ImGuiLogType_None = 0,
ImGuiLogType_TTY,
ImGuiLogType_File,
ImGuiLogType_Buffer,
ImGuiLogType_Clipboard,
};
// X/Y enums are fixed to 0/1 so they may be used to index ImVec2
enum ImGuiAxis
{
ImGuiAxis_None = -1,
ImGuiAxis_X = 0,
ImGuiAxis_Y = 1
};
enum ImGuiPlotType
{
ImGuiPlotType_Lines,
ImGuiPlotType_Histogram,
};
// Stacked color modifier, backup of modified data so we can restore it
struct ImGuiColorMod
{
ImGuiCol Col;
ImVec4 BackupValue;
};
// Stacked style modifier, backup of modified data so we can restore it. Data type inferred from the variable.
struct ImGuiStyleMod
{
ImGuiStyleVar VarIdx;
union { int BackupInt[2]; float BackupFloat[2]; };
ImGuiStyleMod(ImGuiStyleVar idx, int v) { VarIdx = idx; BackupInt[0] = v; }
ImGuiStyleMod(ImGuiStyleVar idx, float v) { VarIdx = idx; BackupFloat[0] = v; }
ImGuiStyleMod(ImGuiStyleVar idx, ImVec2 v) { VarIdx = idx; BackupFloat[0] = v.x; BackupFloat[1] = v.y; }
};
// Storage data for BeginComboPreview()/EndComboPreview()
struct IMGUI_API ImGuiComboPreviewData
{
ImRect PreviewRect;
ImVec2 BackupCursorPos;
ImVec2 BackupCursorMaxPos;
ImVec2 BackupCursorPosPrevLine;
float BackupPrevLineTextBaseOffset;
ImGuiLayoutType BackupLayout;
ImGuiComboPreviewData() { memset(this, 0, sizeof(*this)); }
};
// Stacked storage data for BeginGroup()/EndGroup()
struct IMGUI_API ImGuiGroupData
{
ImGuiID WindowID;
ImVec2 BackupCursorPos;
ImVec2 BackupCursorMaxPos;
ImVec2 BackupCursorPosPrevLine;
ImVec1 BackupIndent;
ImVec1 BackupGroupOffset;
ImVec2 BackupCurrLineSize;
float BackupCurrLineTextBaseOffset;
ImGuiID BackupActiveIdIsAlive;
bool BackupActiveIdPreviousFrameIsAlive;
bool BackupHoveredIdIsAlive;
bool BackupIsSameLine;
bool EmitItem;
};
// Simple column measurement, currently used for MenuItem() only.. This is very short-sighted/throw-away code and NOT a generic helper.
struct IMGUI_API ImGuiMenuColumns
{
ImU32 TotalWidth;
ImU32 NextTotalWidth;
ImU16 Spacing;
ImU16 OffsetIcon; // Always zero for now
ImU16 OffsetLabel; // Offsets are locked in Update()
ImU16 OffsetShortcut;
ImU16 OffsetMark;
ImU16 Widths[4]; // Width of: Icon, Label, Shortcut, Mark (accumulators for current frame)
ImGuiMenuColumns() { memset(this, 0, sizeof(*this)); }
void Update(float spacing, bool window_reappearing);
float DeclColumns(float w_icon, float w_label, float w_shortcut, float w_mark);
void CalcNextTotalWidth(bool update_offsets);
};
// Internal temporary state for deactivating InputText() instances.
struct IMGUI_API ImGuiInputTextDeactivatedState
{
ImGuiID ID; // widget id owning the text state (which just got deactivated)
ImVector<char> TextA; // text buffer
ImGuiInputTextDeactivatedState() { memset(this, 0, sizeof(*this)); }
void ClearFreeMemory() { ID = 0; TextA.clear(); }
};
// Internal state of the currently focused/edited text input box
// For a given item ID, access with ImGui::GetInputTextState()
struct IMGUI_API ImGuiInputTextState
{
ImGuiContext* Ctx; // parent UI context (needs to be set explicitly by parent).
ImGuiID ID; // widget id owning the text state
int CurLenW, CurLenA; // we need to maintain our buffer length in both UTF-8 and wchar format. UTF-8 length is valid even if TextA is not.
ImVector<ImWchar> TextW; // edit buffer, we need to persist but can't guarantee the persistence of the user-provided buffer. so we copy into own buffer.
ImVector<char> TextA; // temporary UTF8 buffer for callbacks and other operations. this is not updated in every code-path! size=capacity.
ImVector<char> InitialTextA; // value to revert to when pressing Escape = backup of end-user buffer at the time of focus (in UTF-8, unaltered)
bool TextAIsValid; // temporary UTF8 buffer is not initially valid before we make the widget active (until then we pull the data from user argument)
int BufCapacityA; // end-user buffer capacity
ImVec2 Scroll; // horizontal offset (managed manually) + vertical scrolling (pulled from child window's own Scroll.y)
ImStb::STB_TexteditState Stb; // state for stb_textedit.h
float CursorAnim; // timer for cursor blink, reset on every user action so the cursor reappears immediately
bool CursorFollow; // set when we want scrolling to follow the current cursor position (not always!)
bool SelectedAllMouseLock; // after a double-click to select all, we ignore further mouse drags to update selection
bool Edited; // edited this frame
ImGuiInputTextFlags Flags; // copy of InputText() flags. may be used to check if e.g. ImGuiInputTextFlags_Password is set.
bool ReloadUserBuf; // force a reload of user buf so it may be modified externally. may be automatic in future version.
int ReloadSelectionStart; // POSITIONS ARE IN IMWCHAR units *NOT* UTF-8 this is why this is not exposed yet.
int ReloadSelectionEnd;
ImGuiInputTextState() { memset(this, 0, sizeof(*this)); }
void ClearText() { CurLenW = CurLenA = 0; TextW[0] = 0; TextA[0] = 0; CursorClamp(); }
void ClearFreeMemory() { TextW.clear(); TextA.clear(); InitialTextA.clear(); }
int GetUndoAvailCount() const { return Stb.undostate.undo_point; }
int GetRedoAvailCount() const { return IMSTB_TEXTEDIT_UNDOSTATECOUNT - Stb.undostate.redo_point; }
void OnKeyPressed(int key); // Cannot be inline because we call in code in stb_textedit.h implementation
// Cursor & Selection
void CursorAnimReset() { CursorAnim = -0.30f; } // After a user-input the cursor stays on for a while without blinking
void CursorClamp() { Stb.cursor = ImMin(Stb.cursor, CurLenW); Stb.select_start = ImMin(Stb.select_start, CurLenW); Stb.select_end = ImMin(Stb.select_end, CurLenW); }
bool HasSelection() const { return Stb.select_start != Stb.select_end; }
void ClearSelection() { Stb.select_start = Stb.select_end = Stb.cursor; }
int GetCursorPos() const { return Stb.cursor; }
int GetSelectionStart() const { return Stb.select_start; }
int GetSelectionEnd() const { return Stb.select_end; }
void SelectAll() { Stb.select_start = 0; Stb.cursor = Stb.select_end = CurLenW; Stb.has_preferred_x = 0; }
// Reload user buf (WIP #2890)
// If you modify underlying user-passed const char* while active you need to call this (InputText V2 may lift this)
// strcpy(my_buf, "hello");
// if (ImGuiInputTextState* state = ImGui::GetInputTextState(id)) // id may be ImGui::GetItemID() is last item
// state->ReloadUserBufAndSelectAll();
void ReloadUserBufAndSelectAll() { ReloadUserBuf = true; ReloadSelectionStart = 0; ReloadSelectionEnd = INT_MAX; }
void ReloadUserBufAndKeepSelection() { ReloadUserBuf = true; ReloadSelectionStart = Stb.select_start; ReloadSelectionEnd = Stb.select_end; }
void ReloadUserBufAndMoveToEnd() { ReloadUserBuf = true; ReloadSelectionStart = ReloadSelectionEnd = INT_MAX; }
};
enum ImGuiWindowRefreshFlags_
{
ImGuiWindowRefreshFlags_None = 0,
ImGuiWindowRefreshFlags_TryToAvoidRefresh = 1 << 0, // [EXPERIMENTAL] Try to keep existing contents, USER MUST NOT HONOR BEGIN() RETURNING FALSE AND NOT APPEND.
ImGuiWindowRefreshFlags_RefreshOnHover = 1 << 1, // [EXPERIMENTAL] Always refresh on hover
ImGuiWindowRefreshFlags_RefreshOnFocus = 1 << 2, // [EXPERIMENTAL] Always refresh on focus
// Refresh policy/frequency, Load Balancing etc.
};
enum ImGuiNextWindowDataFlags_
{
ImGuiNextWindowDataFlags_None = 0,
ImGuiNextWindowDataFlags_HasPos = 1 << 0,
ImGuiNextWindowDataFlags_HasSize = 1 << 1,
ImGuiNextWindowDataFlags_HasContentSize = 1 << 2,
ImGuiNextWindowDataFlags_HasCollapsed = 1 << 3,
ImGuiNextWindowDataFlags_HasSizeConstraint = 1 << 4,
ImGuiNextWindowDataFlags_HasFocus = 1 << 5,
ImGuiNextWindowDataFlags_HasBgAlpha = 1 << 6,
ImGuiNextWindowDataFlags_HasScroll = 1 << 7,
ImGuiNextWindowDataFlags_HasChildFlags = 1 << 8,
ImGuiNextWindowDataFlags_HasRefreshPolicy = 1 << 9,
ImGuiNextWindowDataFlags_HasViewport = 1 << 10,
ImGuiNextWindowDataFlags_HasDock = 1 << 11,
ImGuiNextWindowDataFlags_HasWindowClass = 1 << 12,
};
// Storage for SetNexWindow** functions
struct ImGuiNextWindowData
{
ImGuiNextWindowDataFlags Flags;
ImGuiCond PosCond;
ImGuiCond SizeCond;
ImGuiCond CollapsedCond;
ImGuiCond DockCond;
ImVec2 PosVal;
ImVec2 PosPivotVal;
ImVec2 SizeVal;
ImVec2 ContentSizeVal;
ImVec2 ScrollVal;
ImGuiChildFlags ChildFlags;
bool PosUndock;
bool CollapsedVal;
ImRect SizeConstraintRect;
ImGuiSizeCallback SizeCallback;
void* SizeCallbackUserData;
float BgAlphaVal; // Override background alpha
ImGuiID ViewportId;
ImGuiID DockId;
ImGuiWindowClass WindowClass;
ImVec2 MenuBarOffsetMinVal; // (Always on) This is not exposed publicly, so we don't clear it and it doesn't have a corresponding flag (could we? for consistency?)
ImGuiWindowRefreshFlags RefreshFlagsVal;
ImGuiNextWindowData() { memset(this, 0, sizeof(*this)); }
inline void ClearFlags() { Flags = ImGuiNextWindowDataFlags_None; }
};
enum ImGuiNextItemDataFlags_
{
ImGuiNextItemDataFlags_None = 0,
ImGuiNextItemDataFlags_HasWidth = 1 << 0,
ImGuiNextItemDataFlags_HasOpen = 1 << 1,
ImGuiNextItemDataFlags_HasShortcut = 1 << 2,
ImGuiNextItemDataFlags_HasRefVal = 1 << 3,
ImGuiNextItemDataFlags_HasStorageID = 1 << 4,
};
struct ImGuiNextItemData
{
ImGuiNextItemDataFlags Flags;
ImGuiItemFlags ItemFlags; // Currently only tested/used for ImGuiItemFlags_AllowOverlap and ImGuiItemFlags_HasSelectionUserData.
// Non-flags members are NOT cleared by ItemAdd() meaning they are still valid during NavProcessItem()
ImGuiID FocusScopeId; // Set by SetNextItemSelectionUserData()
ImGuiSelectionUserData SelectionUserData; // Set by SetNextItemSelectionUserData() (note that NULL/0 is a valid value, we use -1 == ImGuiSelectionUserData_Invalid to mark invalid values)
float Width; // Set by SetNextItemWidth()
ImGuiKeyChord Shortcut; // Set by SetNextItemShortcut()
ImGuiInputFlags ShortcutFlags; // Set by SetNextItemShortcut()
bool OpenVal; // Set by SetNextItemOpen()
ImU8 OpenCond; // Set by SetNextItemOpen()
ImGuiDataTypeStorage RefVal; // Not exposed yet, for ImGuiInputTextFlags_ParseEmptyAsRefVal
ImGuiID StorageId; // Set by SetNextItemStorageID()
ImGuiNextItemData() { memset(this, 0, sizeof(*this)); SelectionUserData = -1; }
inline void ClearFlags() { Flags = ImGuiNextItemDataFlags_None; ItemFlags = ImGuiItemFlags_None; } // Also cleared manually by ItemAdd()!
};
// Status storage for the last submitted item
struct ImGuiLastItemData
{
ImGuiID ID;
ImGuiItemFlags InFlags; // See ImGuiItemFlags_
ImGuiItemStatusFlags StatusFlags; // See ImGuiItemStatusFlags_
ImRect Rect; // Full rectangle
ImRect NavRect; // Navigation scoring rectangle (not displayed)
// Rarely used fields are not explicitly cleared, only valid when the corresponding ImGuiItemStatusFlags ar set.
ImRect DisplayRect; // Display rectangle. ONLY VALID IF (StatusFlags & ImGuiItemStatusFlags_HasDisplayRect) is set.
ImRect ClipRect; // Clip rectangle at the time of submitting item. ONLY VALID IF (StatusFlags & ImGuiItemStatusFlags_HasClipRect) is set..
ImGuiKeyChord Shortcut; // Shortcut at the time of submitting item. ONLY VALID IF (StatusFlags & ImGuiItemStatusFlags_HasShortcut) is set..
ImGuiLastItemData() { memset(this, 0, sizeof(*this)); }
};
// Store data emitted by TreeNode() for usage by TreePop()
// - To implement ImGuiTreeNodeFlags_NavLeftJumpsBackHere: store the minimum amount of data
// which we can't infer in TreePop(), to perform the equivalent of NavApplyItemToResult().
// Only stored when the node is a potential candidate for landing on a Left arrow jump.
struct ImGuiTreeNodeStackData
{
ImGuiID ID;
ImGuiTreeNodeFlags TreeFlags;
ImGuiItemFlags InFlags; // Used for nav landing
ImRect NavRect; // Used for nav landing
};
struct IMGUI_API ImGuiStackSizes
{
short SizeOfIDStack;
short SizeOfColorStack;
short SizeOfStyleVarStack;
short SizeOfFontStack;
short SizeOfFocusScopeStack;
short SizeOfGroupStack;
short SizeOfItemFlagsStack;
short SizeOfBeginPopupStack;
short SizeOfDisabledStack;
ImGuiStackSizes() { memset(this, 0, sizeof(*this)); }
void SetToContextState(ImGuiContext* ctx);
void CompareWithContextState(ImGuiContext* ctx);
};
// Data saved for each window pushed into the stack
struct ImGuiWindowStackData
{
ImGuiWindow* Window;
ImGuiLastItemData ParentLastItemDataBackup;
ImGuiStackSizes StackSizesOnBegin; // Store size of various stacks for asserting
bool DisabledOverrideReenable; // Non-child window override disabled flag
};
struct ImGuiShrinkWidthItem
{
int Index;
float Width;
float InitialWidth;
};
struct ImGuiPtrOrIndex
{
void* Ptr; // Either field can be set, not both. e.g. Dock node tab bars are loose while BeginTabBar() ones are in a pool.
int Index; // Usually index in a main pool.
ImGuiPtrOrIndex(void* ptr) { Ptr = ptr; Index = -1; }
ImGuiPtrOrIndex(int index) { Ptr = NULL; Index = index; }
};
//-----------------------------------------------------------------------------
// [SECTION] Popup support
//-----------------------------------------------------------------------------
enum ImGuiPopupPositionPolicy
{
ImGuiPopupPositionPolicy_Default,
ImGuiPopupPositionPolicy_ComboBox,
ImGuiPopupPositionPolicy_Tooltip,
};
// Storage for popup stacks (g.OpenPopupStack and g.BeginPopupStack)
struct ImGuiPopupData
{
ImGuiID PopupId; // Set on OpenPopup()
ImGuiWindow* Window; // Resolved on BeginPopup() - may stay unresolved if user never calls OpenPopup()
ImGuiWindow* RestoreNavWindow;// Set on OpenPopup(), a NavWindow that will be restored on popup close
int ParentNavLayer; // Resolved on BeginPopup(). Actually a ImGuiNavLayer type (declared down below), initialized to -1 which is not part of an enum, but serves well-enough as "not any of layers" value
int OpenFrameCount; // Set on OpenPopup()
ImGuiID OpenParentId; // Set on OpenPopup(), we need this to differentiate multiple menu sets from each others (e.g. inside menu bar vs loose menu items)
ImVec2 OpenPopupPos; // Set on OpenPopup(), preferred popup position (typically == OpenMousePos when using mouse)
ImVec2 OpenMousePos; // Set on OpenPopup(), copy of mouse position at the time of opening popup
ImGuiPopupData() { memset(this, 0, sizeof(*this)); ParentNavLayer = OpenFrameCount = -1; }
};
//-----------------------------------------------------------------------------
// [SECTION] Inputs support
//-----------------------------------------------------------------------------
// Bit array for named keys
typedef ImBitArray<ImGuiKey_NamedKey_COUNT, -ImGuiKey_NamedKey_BEGIN> ImBitArrayForNamedKeys;
// [Internal] Key ranges
#define ImGuiKey_LegacyNativeKey_BEGIN 0
#define ImGuiKey_LegacyNativeKey_END 512
#define ImGuiKey_Keyboard_BEGIN (ImGuiKey_NamedKey_BEGIN)
#define ImGuiKey_Keyboard_END (ImGuiKey_GamepadStart)
#define ImGuiKey_Gamepad_BEGIN (ImGuiKey_GamepadStart)
#define ImGuiKey_Gamepad_END (ImGuiKey_GamepadRStickDown + 1)
#define ImGuiKey_Mouse_BEGIN (ImGuiKey_MouseLeft)
#define ImGuiKey_Mouse_END (ImGuiKey_MouseWheelY + 1)
#define ImGuiKey_Aliases_BEGIN (ImGuiKey_Mouse_BEGIN)
#define ImGuiKey_Aliases_END (ImGuiKey_Mouse_END)
// [Internal] Named shortcuts for Navigation
#define ImGuiKey_NavKeyboardTweakSlow ImGuiMod_Ctrl
#define ImGuiKey_NavKeyboardTweakFast ImGuiMod_Shift
#define ImGuiKey_NavGamepadTweakSlow ImGuiKey_GamepadL1
#define ImGuiKey_NavGamepadTweakFast ImGuiKey_GamepadR1
#define ImGuiKey_NavGamepadActivate (g.IO.ConfigNavSwapGamepadButtons ? ImGuiKey_GamepadFaceRight : ImGuiKey_GamepadFaceDown)
#define ImGuiKey_NavGamepadCancel (g.IO.ConfigNavSwapGamepadButtons ? ImGuiKey_GamepadFaceDown : ImGuiKey_GamepadFaceRight)
#define ImGuiKey_NavGamepadMenu ImGuiKey_GamepadFaceLeft
#define ImGuiKey_NavGamepadInput ImGuiKey_GamepadFaceUp
enum ImGuiInputEventType
{
ImGuiInputEventType_None = 0,
ImGuiInputEventType_MousePos,
ImGuiInputEventType_MouseWheel,
ImGuiInputEventType_MouseButton,
ImGuiInputEventType_MouseViewport,
ImGuiInputEventType_Key,
ImGuiInputEventType_Text,
ImGuiInputEventType_Focus,
ImGuiInputEventType_COUNT
};
enum ImGuiInputSource
{
ImGuiInputSource_None = 0,
ImGuiInputSource_Mouse, // Note: may be Mouse or TouchScreen or Pen. See io.MouseSource to distinguish them.
ImGuiInputSource_Keyboard,
ImGuiInputSource_Gamepad,
ImGuiInputSource_COUNT
};
// FIXME: Structures in the union below need to be declared as anonymous unions appears to be an extension?
// Using ImVec2() would fail on Clang 'union member 'MousePos' has a non-trivial default constructor'
struct ImGuiInputEventMousePos { float PosX, PosY; ImGuiMouseSource MouseSource; };
struct ImGuiInputEventMouseWheel { float WheelX, WheelY; ImGuiMouseSource MouseSource; };
struct ImGuiInputEventMouseButton { int Button; bool Down; ImGuiMouseSource MouseSource; };
struct ImGuiInputEventMouseViewport { ImGuiID HoveredViewportID; };
struct ImGuiInputEventKey { ImGuiKey Key; bool Down; float AnalogValue; };
struct ImGuiInputEventText { unsigned int Char; };
struct ImGuiInputEventAppFocused { bool Focused; };
struct ImGuiInputEvent
{
ImGuiInputEventType Type;
ImGuiInputSource Source;
ImU32 EventId; // Unique, sequential increasing integer to identify an event (if you need to correlate them to other data).
union
{
ImGuiInputEventMousePos MousePos; // if Type == ImGuiInputEventType_MousePos
ImGuiInputEventMouseWheel MouseWheel; // if Type == ImGuiInputEventType_MouseWheel
ImGuiInputEventMouseButton MouseButton; // if Type == ImGuiInputEventType_MouseButton
ImGuiInputEventMouseViewport MouseViewport; // if Type == ImGuiInputEventType_MouseViewport
ImGuiInputEventKey Key; // if Type == ImGuiInputEventType_Key
ImGuiInputEventText Text; // if Type == ImGuiInputEventType_Text
ImGuiInputEventAppFocused AppFocused; // if Type == ImGuiInputEventType_Focus
};
bool AddedByTestEngine;
ImGuiInputEvent() { memset(this, 0, sizeof(*this)); }
};
// Input function taking an 'ImGuiID owner_id' argument defaults to (ImGuiKeyOwner_Any == 0) aka don't test ownership, which matches legacy behavior.
#define ImGuiKeyOwner_Any ((ImGuiID)0) // Accept key that have an owner, UNLESS a call to SetKeyOwner() explicitly used ImGuiInputFlags_LockThisFrame or ImGuiInputFlags_LockUntilRelease.
#define ImGuiKeyOwner_NoOwner ((ImGuiID)-1) // Require key to have no owner.
//#define ImGuiKeyOwner_None ImGuiKeyOwner_NoOwner // We previously called this 'ImGuiKeyOwner_None' but it was inconsistent with our pattern that _None values == 0 and quite dangerous. Also using _NoOwner makes the IsKeyPressed() calls more explicit.
typedef ImS16 ImGuiKeyRoutingIndex;
// Routing table entry (sizeof() == 16 bytes)
struct ImGuiKeyRoutingData
{
ImGuiKeyRoutingIndex NextEntryIndex;
ImU16 Mods; // Technically we'd only need 4-bits but for simplify we store ImGuiMod_ values which need 16-bits.
ImU8 RoutingCurrScore; // [DEBUG] For debug display
ImU8 RoutingNextScore; // Lower is better (0: perfect score)
ImGuiID RoutingCurr;
ImGuiID RoutingNext;
ImGuiKeyRoutingData() { NextEntryIndex = -1; Mods = 0; RoutingCurrScore = RoutingNextScore = 255; RoutingCurr = RoutingNext = ImGuiKeyOwner_NoOwner; }
};
// Routing table: maintain a desired owner for each possible key-chord (key + mods), and setup owner in NewFrame() when mods are matching.
// Stored in main context (1 instance)
struct ImGuiKeyRoutingTable
{
ImGuiKeyRoutingIndex Index[ImGuiKey_NamedKey_COUNT]; // Index of first entry in Entries[]
ImVector<ImGuiKeyRoutingData> Entries;
ImVector<ImGuiKeyRoutingData> EntriesNext; // Double-buffer to avoid reallocation (could use a shared buffer)
ImGuiKeyRoutingTable() { Clear(); }
void Clear() { for (int n = 0; n < IM_ARRAYSIZE(Index); n++) Index[n] = -1; Entries.clear(); EntriesNext.clear(); }
};
// This extends ImGuiKeyData but only for named keys (legacy keys don't support the new features)
// Stored in main context (1 per named key). In the future it might be merged into ImGuiKeyData.
struct ImGuiKeyOwnerData
{
ImGuiID OwnerCurr;
ImGuiID OwnerNext;
bool LockThisFrame; // Reading this key requires explicit owner id (until end of frame). Set by ImGuiInputFlags_LockThisFrame.
bool LockUntilRelease; // Reading this key requires explicit owner id (until key is released). Set by ImGuiInputFlags_LockUntilRelease. When this is true LockThisFrame is always true as well.
ImGuiKeyOwnerData() { OwnerCurr = OwnerNext = ImGuiKeyOwner_NoOwner; LockThisFrame = LockUntilRelease = false; }
};
// Extend ImGuiInputFlags_
// Flags for extended versions of IsKeyPressed(), IsMouseClicked(), Shortcut(), SetKeyOwner(), SetItemKeyOwner()
// Don't mistake with ImGuiInputTextFlags! (which is for ImGui::InputText() function)
enum ImGuiInputFlagsPrivate_
{
// Flags for IsKeyPressed(), IsKeyChordPressed(), IsMouseClicked(), Shortcut()
// - Repeat mode: Repeat rate selection
ImGuiInputFlags_RepeatRateDefault = 1 << 1, // Repeat rate: Regular (default)
ImGuiInputFlags_RepeatRateNavMove = 1 << 2, // Repeat rate: Fast
ImGuiInputFlags_RepeatRateNavTweak = 1 << 3, // Repeat rate: Faster
// - Repeat mode: Specify when repeating key pressed can be interrupted.
// - In theory ImGuiInputFlags_RepeatUntilOtherKeyPress may be a desirable default, but it would break too many behavior so everything is opt-in.
ImGuiInputFlags_RepeatUntilRelease = 1 << 4, // Stop repeating when released (default for all functions except Shortcut). This only exists to allow overriding Shortcut() default behavior.
ImGuiInputFlags_RepeatUntilKeyModsChange = 1 << 5, // Stop repeating when released OR if keyboard mods are changed (default for Shortcut)
ImGuiInputFlags_RepeatUntilKeyModsChangeFromNone = 1 << 6, // Stop repeating when released OR if keyboard mods are leaving the None state. Allows going from Mod+Key to Key by releasing Mod.
ImGuiInputFlags_RepeatUntilOtherKeyPress = 1 << 7, // Stop repeating when released OR if any other keyboard key is pressed during the repeat
// Flags for SetKeyOwner(), SetItemKeyOwner()
// - Locking key away from non-input aware code. Locking is useful to make input-owner-aware code steal keys from non-input-owner-aware code. If all code is input-owner-aware locking would never be necessary.
ImGuiInputFlags_LockThisFrame = 1 << 20, // Further accesses to key data will require EXPLICIT owner ID (ImGuiKeyOwner_Any/0 will NOT accepted for polling). Cleared at end of frame.
ImGuiInputFlags_LockUntilRelease = 1 << 21, // Further accesses to key data will require EXPLICIT owner ID (ImGuiKeyOwner_Any/0 will NOT accepted for polling). Cleared when the key is released or at end of each frame if key is released.
// - Condition for SetItemKeyOwner()
ImGuiInputFlags_CondHovered = 1 << 22, // Only set if item is hovered (default to both)
ImGuiInputFlags_CondActive = 1 << 23, // Only set if item is active (default to both)
ImGuiInputFlags_CondDefault_ = ImGuiInputFlags_CondHovered | ImGuiInputFlags_CondActive,
// [Internal] Mask of which function support which flags
ImGuiInputFlags_RepeatRateMask_ = ImGuiInputFlags_RepeatRateDefault | ImGuiInputFlags_RepeatRateNavMove | ImGuiInputFlags_RepeatRateNavTweak,
ImGuiInputFlags_RepeatUntilMask_ = ImGuiInputFlags_RepeatUntilRelease | ImGuiInputFlags_RepeatUntilKeyModsChange | ImGuiInputFlags_RepeatUntilKeyModsChangeFromNone | ImGuiInputFlags_RepeatUntilOtherKeyPress,
ImGuiInputFlags_RepeatMask_ = ImGuiInputFlags_Repeat | ImGuiInputFlags_RepeatRateMask_ | ImGuiInputFlags_RepeatUntilMask_,
ImGuiInputFlags_CondMask_ = ImGuiInputFlags_CondHovered | ImGuiInputFlags_CondActive,
ImGuiInputFlags_RouteTypeMask_ = ImGuiInputFlags_RouteActive | ImGuiInputFlags_RouteFocused | ImGuiInputFlags_RouteGlobal | ImGuiInputFlags_RouteAlways,
ImGuiInputFlags_RouteOptionsMask_ = ImGuiInputFlags_RouteOverFocused | ImGuiInputFlags_RouteOverActive | ImGuiInputFlags_RouteUnlessBgFocused | ImGuiInputFlags_RouteFromRootWindow,
ImGuiInputFlags_SupportedByIsKeyPressed = ImGuiInputFlags_RepeatMask_,
ImGuiInputFlags_SupportedByIsMouseClicked = ImGuiInputFlags_Repeat,
ImGuiInputFlags_SupportedByShortcut = ImGuiInputFlags_RepeatMask_ | ImGuiInputFlags_RouteTypeMask_ | ImGuiInputFlags_RouteOptionsMask_,
ImGuiInputFlags_SupportedBySetNextItemShortcut = ImGuiInputFlags_RepeatMask_ | ImGuiInputFlags_RouteTypeMask_ | ImGuiInputFlags_RouteOptionsMask_ | ImGuiInputFlags_Tooltip,
ImGuiInputFlags_SupportedBySetKeyOwner = ImGuiInputFlags_LockThisFrame | ImGuiInputFlags_LockUntilRelease,
ImGuiInputFlags_SupportedBySetItemKeyOwner = ImGuiInputFlags_SupportedBySetKeyOwner | ImGuiInputFlags_CondMask_,
};
//-----------------------------------------------------------------------------
// [SECTION] Clipper support
//-----------------------------------------------------------------------------
// Note that Max is exclusive, so perhaps should be using a Begin/End convention.
struct ImGuiListClipperRange
{
int Min;
int Max;
bool PosToIndexConvert; // Begin/End are absolute position (will be converted to indices later)
ImS8 PosToIndexOffsetMin; // Add to Min after converting to indices
ImS8 PosToIndexOffsetMax; // Add to Min after converting to indices
static ImGuiListClipperRange FromIndices(int min, int max) { ImGuiListClipperRange r = { min, max, false, 0, 0 }; return r; }
static ImGuiListClipperRange FromPositions(float y1, float y2, int off_min, int off_max) { ImGuiListClipperRange r = { (int)y1, (int)y2, true, (ImS8)off_min, (ImS8)off_max }; return r; }
};
// Temporary clipper data, buffers shared/reused between instances
struct ImGuiListClipperData
{
ImGuiListClipper* ListClipper;
float LossynessOffset;
int StepNo;
int ItemsFrozen;
ImVector<ImGuiListClipperRange> Ranges;
ImGuiListClipperData() { memset(this, 0, sizeof(*this)); }
void Reset(ImGuiListClipper* clipper) { ListClipper = clipper; StepNo = ItemsFrozen = 0; Ranges.resize(0); }
};
//-----------------------------------------------------------------------------
// [SECTION] Navigation support
//-----------------------------------------------------------------------------
enum ImGuiActivateFlags_
{
ImGuiActivateFlags_None = 0,
ImGuiActivateFlags_PreferInput = 1 << 0, // Favor activation that requires keyboard text input (e.g. for Slider/Drag). Default for Enter key.
ImGuiActivateFlags_PreferTweak = 1 << 1, // Favor activation for tweaking with arrows or gamepad (e.g. for Slider/Drag). Default for Space key and if keyboard is not used.
ImGuiActivateFlags_TryToPreserveState = 1 << 2, // Request widget to preserve state if it can (e.g. InputText will try to preserve cursor/selection)
ImGuiActivateFlags_FromTabbing = 1 << 3, // Activation requested by a tabbing request
ImGuiActivateFlags_FromShortcut = 1 << 4, // Activation requested by an item shortcut via SetNextItemShortcut() function.
};
// Early work-in-progress API for ScrollToItem()
enum ImGuiScrollFlags_
{
ImGuiScrollFlags_None = 0,
ImGuiScrollFlags_KeepVisibleEdgeX = 1 << 0, // If item is not visible: scroll as little as possible on X axis to bring item back into view [default for X axis]
ImGuiScrollFlags_KeepVisibleEdgeY = 1 << 1, // If item is not visible: scroll as little as possible on Y axis to bring item back into view [default for Y axis for windows that are already visible]
ImGuiScrollFlags_KeepVisibleCenterX = 1 << 2, // If item is not visible: scroll to make the item centered on X axis [rarely used]
ImGuiScrollFlags_KeepVisibleCenterY = 1 << 3, // If item is not visible: scroll to make the item centered on Y axis
ImGuiScrollFlags_AlwaysCenterX = 1 << 4, // Always center the result item on X axis [rarely used]
ImGuiScrollFlags_AlwaysCenterY = 1 << 5, // Always center the result item on Y axis [default for Y axis for appearing window)
ImGuiScrollFlags_NoScrollParent = 1 << 6, // Disable forwarding scrolling to parent window if required to keep item/rect visible (only scroll window the function was applied to).
ImGuiScrollFlags_MaskX_ = ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleCenterX | ImGuiScrollFlags_AlwaysCenterX,
ImGuiScrollFlags_MaskY_ = ImGuiScrollFlags_KeepVisibleEdgeY | ImGuiScrollFlags_KeepVisibleCenterY | ImGuiScrollFlags_AlwaysCenterY,
};
enum ImGuiNavHighlightFlags_
{
ImGuiNavHighlightFlags_None = 0,
ImGuiNavHighlightFlags_Compact = 1 << 1, // Compact highlight, no padding
ImGuiNavHighlightFlags_AlwaysDraw = 1 << 2, // Draw rectangular highlight if (g.NavId == id) _even_ when using the mouse.
ImGuiNavHighlightFlags_NoRounding = 1 << 3,
};
enum ImGuiNavMoveFlags_
{
ImGuiNavMoveFlags_None = 0,
ImGuiNavMoveFlags_LoopX = 1 << 0, // On failed request, restart from opposite side
ImGuiNavMoveFlags_LoopY = 1 << 1,
ImGuiNavMoveFlags_WrapX = 1 << 2, // On failed request, request from opposite side one line down (when NavDir==right) or one line up (when NavDir==left)
ImGuiNavMoveFlags_WrapY = 1 << 3, // This is not super useful but provided for completeness
ImGuiNavMoveFlags_WrapMask_ = ImGuiNavMoveFlags_LoopX | ImGuiNavMoveFlags_LoopY | ImGuiNavMoveFlags_WrapX | ImGuiNavMoveFlags_WrapY,
ImGuiNavMoveFlags_AllowCurrentNavId = 1 << 4, // Allow scoring and considering the current NavId as a move target candidate. This is used when the move source is offset (e.g. pressing PageDown actually needs to send a Up move request, if we are pressing PageDown from the bottom-most item we need to stay in place)
ImGuiNavMoveFlags_AlsoScoreVisibleSet = 1 << 5, // Store alternate result in NavMoveResultLocalVisible that only comprise elements that are already fully visible (used by PageUp/PageDown)
ImGuiNavMoveFlags_ScrollToEdgeY = 1 << 6, // Force scrolling to min/max (used by Home/End) // FIXME-NAV: Aim to remove or reword, probably unnecessary
ImGuiNavMoveFlags_Forwarded = 1 << 7,
ImGuiNavMoveFlags_DebugNoResult = 1 << 8, // Dummy scoring for debug purpose, don't apply result
ImGuiNavMoveFlags_FocusApi = 1 << 9, // Requests from focus API can land/focus/activate items even if they are marked with _NoTabStop (see NavProcessItemForTabbingRequest() for details)
ImGuiNavMoveFlags_IsTabbing = 1 << 10, // == Focus + Activate if item is Inputable + DontChangeNavHighlight
ImGuiNavMoveFlags_IsPageMove = 1 << 11, // Identify a PageDown/PageUp request.
ImGuiNavMoveFlags_Activate = 1 << 12, // Activate/select target item.
ImGuiNavMoveFlags_NoSelect = 1 << 13, // Don't trigger selection by not setting g.NavJustMovedTo
ImGuiNavMoveFlags_NoSetNavHighlight = 1 << 14, // Do not alter the visible state of keyboard vs mouse nav highlight
ImGuiNavMoveFlags_NoClearActiveId = 1 << 15, // (Experimental) Do not clear active id when applying move result
};
enum ImGuiNavLayer
{
ImGuiNavLayer_Main = 0, // Main scrolling layer
ImGuiNavLayer_Menu = 1, // Menu layer (access with Alt)
ImGuiNavLayer_COUNT
};
// Storage for navigation query/results
struct ImGuiNavItemData
{
ImGuiWindow* Window; // Init,Move // Best candidate window (result->ItemWindow->RootWindowForNav == request->Window)
ImGuiID ID; // Init,Move // Best candidate item ID
ImGuiID FocusScopeId; // Init,Move // Best candidate focus scope ID
ImRect RectRel; // Init,Move // Best candidate bounding box in window relative space
ImGuiItemFlags InFlags; // ????,Move // Best candidate item flags
float DistBox; // Move // Best candidate box distance to current NavId
float DistCenter; // Move // Best candidate center distance to current NavId
float DistAxial; // Move // Best candidate axial distance to current NavId
ImGuiSelectionUserData SelectionUserData;//I+Mov // Best candidate SetNextItemSelectionUserData() value. Valid if (InFlags & ImGuiItemFlags_HasSelectionUserData)
ImGuiNavItemData() { Clear(); }
void Clear() { Window = NULL; ID = FocusScopeId = 0; InFlags = 0; SelectionUserData = -1; DistBox = DistCenter = DistAxial = FLT_MAX; }
};
// Storage for PushFocusScope()
struct ImGuiFocusScopeData
{
ImGuiID ID;
ImGuiID WindowID;
};
//-----------------------------------------------------------------------------
// [SECTION] Typing-select support
//-----------------------------------------------------------------------------
// Flags for GetTypingSelectRequest()
enum ImGuiTypingSelectFlags_
{
ImGuiTypingSelectFlags_None = 0,
ImGuiTypingSelectFlags_AllowBackspace = 1 << 0, // Backspace to delete character inputs. If using: ensure GetTypingSelectRequest() is not called more than once per frame (filter by e.g. focus state)
ImGuiTypingSelectFlags_AllowSingleCharMode = 1 << 1, // Allow "single char" search mode which is activated when pressing the same character multiple times.
};
// Returned by GetTypingSelectRequest(), designed to eventually be public.
struct IMGUI_API ImGuiTypingSelectRequest
{
ImGuiTypingSelectFlags Flags; // Flags passed to GetTypingSelectRequest()
int SearchBufferLen;
const char* SearchBuffer; // Search buffer contents (use full string. unless SingleCharMode is set, in which case use SingleCharSize).
bool SelectRequest; // Set when buffer was modified this frame, requesting a selection.
bool SingleCharMode; // Notify when buffer contains same character repeated, to implement special mode. In this situation it preferred to not display any on-screen search indication.
ImS8 SingleCharSize; // Length in bytes of first letter codepoint (1 for ascii, 2-4 for UTF-8). If (SearchBufferLen==RepeatCharSize) only 1 letter has been input.
};
// Storage for GetTypingSelectRequest()
struct IMGUI_API ImGuiTypingSelectState
{
ImGuiTypingSelectRequest Request; // User-facing data
char SearchBuffer[64]; // Search buffer: no need to make dynamic as this search is very transient.
ImGuiID FocusScope;
int LastRequestFrame = 0;
float LastRequestTime = 0.0f;
bool SingleCharModeLock = false; // After a certain single char repeat count we lock into SingleCharMode. Two benefits: 1) buffer never fill, 2) we can provide an immediate SingleChar mode without timer elapsing.
ImGuiTypingSelectState() { memset(this, 0, sizeof(*this)); }
void Clear() { SearchBuffer[0] = 0; SingleCharModeLock = false; } // We preserve remaining data for easier debugging
};
//-----------------------------------------------------------------------------
// [SECTION] Columns support
//-----------------------------------------------------------------------------
// Flags for internal's BeginColumns(). This is an obsolete API. Prefer using BeginTable() nowadays!
enum ImGuiOldColumnFlags_
{
ImGuiOldColumnFlags_None = 0,
ImGuiOldColumnFlags_NoBorder = 1 << 0, // Disable column dividers
ImGuiOldColumnFlags_NoResize = 1 << 1, // Disable resizing columns when clicking on the dividers
ImGuiOldColumnFlags_NoPreserveWidths = 1 << 2, // Disable column width preservation when adjusting columns
ImGuiOldColumnFlags_NoForceWithinWindow = 1 << 3, // Disable forcing columns to fit within window
ImGuiOldColumnFlags_GrowParentContentsSize = 1 << 4, // Restore pre-1.51 behavior of extending the parent window contents size but _without affecting the columns width at all_. Will eventually remove.
// Obsolete names (will be removed)
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
//ImGuiColumnsFlags_None = ImGuiOldColumnFlags_None,
//ImGuiColumnsFlags_NoBorder = ImGuiOldColumnFlags_NoBorder,
//ImGuiColumnsFlags_NoResize = ImGuiOldColumnFlags_NoResize,
//ImGuiColumnsFlags_NoPreserveWidths = ImGuiOldColumnFlags_NoPreserveWidths,
//ImGuiColumnsFlags_NoForceWithinWindow = ImGuiOldColumnFlags_NoForceWithinWindow,
//ImGuiColumnsFlags_GrowParentContentsSize = ImGuiOldColumnFlags_GrowParentContentsSize,
#endif
};
struct ImGuiOldColumnData
{
float OffsetNorm; // Column start offset, normalized 0.0 (far left) -> 1.0 (far right)
float OffsetNormBeforeResize;
ImGuiOldColumnFlags Flags; // Not exposed
ImRect ClipRect;
ImGuiOldColumnData() { memset(this, 0, sizeof(*this)); }
};
struct ImGuiOldColumns
{
ImGuiID ID;
ImGuiOldColumnFlags Flags;
bool IsFirstFrame;
bool IsBeingResized;
int Current;
int Count;
float OffMinX, OffMaxX; // Offsets from HostWorkRect.Min.x
float LineMinY, LineMaxY;
float HostCursorPosY; // Backup of CursorPos at the time of BeginColumns()
float HostCursorMaxPosX; // Backup of CursorMaxPos at the time of BeginColumns()
ImRect HostInitialClipRect; // Backup of ClipRect at the time of BeginColumns()
ImRect HostBackupClipRect; // Backup of ClipRect during PushColumnsBackground()/PopColumnsBackground()
ImRect HostBackupParentWorkRect;//Backup of WorkRect at the time of BeginColumns()
ImVector<ImGuiOldColumnData> Columns;
ImDrawListSplitter Splitter;
ImGuiOldColumns() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] Box-select support
//-----------------------------------------------------------------------------
struct ImGuiBoxSelectState
{
// Active box-selection data (persistent, 1 active at a time)
ImGuiID ID;
bool IsActive;
bool IsStarting;
bool IsStartedFromVoid; // Starting click was not from an item.
bool IsStartedSetNavIdOnce;
bool RequestClear;
ImGuiKeyChord KeyMods : 16; // Latched key-mods for box-select logic.
ImVec2 StartPosRel; // Start position in window-contents relative space (to support scrolling)
ImVec2 EndPosRel; // End position in window-contents relative space
ImVec2 ScrollAccum; // Scrolling accumulator (to behave at high-frame spaces)
ImGuiWindow* Window;
// Temporary/Transient data
bool UnclipMode; // (Temp/Transient, here in hot area). Set/cleared by the BeginMultiSelect()/EndMultiSelect() owning active box-select.
ImRect UnclipRect; // Rectangle where ItemAdd() clipping may be temporarily disabled. Need support by multi-select supporting widgets.
ImRect BoxSelectRectPrev; // Selection rectangle in absolute coordinates (derived every frame from BoxSelectStartPosRel and MousePos)
ImRect BoxSelectRectCurr;
ImGuiBoxSelectState() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] Multi-select support
//-----------------------------------------------------------------------------
// We always assume that -1 is an invalid value (which works for indices and pointers)
#define ImGuiSelectionUserData_Invalid ((ImGuiSelectionUserData)-1)
// Temporary storage for multi-select
struct IMGUI_API ImGuiMultiSelectTempData
{
ImGuiMultiSelectIO IO; // MUST BE FIRST FIELD. Requests are set and returned by BeginMultiSelect()/EndMultiSelect() + written to by user during the loop.
ImGuiMultiSelectState* Storage;
ImGuiID FocusScopeId; // Copied from g.CurrentFocusScopeId (unless another selection scope was pushed manually)
ImGuiMultiSelectFlags Flags;
ImVec2 ScopeRectMin;
ImVec2 BackupCursorMaxPos;
ImGuiSelectionUserData LastSubmittedItem; // Copy of last submitted item data, used to merge output ranges.
ImGuiID BoxSelectId;
ImGuiKeyChord KeyMods;
ImS8 LoopRequestSetAll; // -1: no operation, 0: clear all, 1: select all.
bool IsEndIO; // Set when switching IO from BeginMultiSelect() to EndMultiSelect() state.
bool IsFocused; // Set if currently focusing the selection scope (any item of the selection). May be used if you have custom shortcut associated to selection.
bool IsKeyboardSetRange; // Set by BeginMultiSelect() when using Shift+Navigation. Because scrolling may be affected we can't afford a frame of lag with Shift+Navigation.
bool NavIdPassedBy;
bool RangeSrcPassedBy; // Set by the item that matches RangeSrcItem.
bool RangeDstPassedBy; // Set by the item that matches NavJustMovedToId when IsSetRange is set.
ImGuiMultiSelectTempData() { Clear(); }
void Clear() { size_t io_sz = sizeof(IO); ClearIO(); memset((void*)(&IO + 1), 0, sizeof(*this) - io_sz); } // Zero-clear except IO as we preserve IO.Requests[] buffer allocation.
void ClearIO() { IO.Requests.resize(0); IO.RangeSrcItem = IO.NavIdItem = ImGuiSelectionUserData_Invalid; IO.NavIdSelected = IO.RangeSrcReset = false; }
};
// Persistent storage for multi-select (as long as selection is alive)
struct IMGUI_API ImGuiMultiSelectState
{
ImGuiWindow* Window;
ImGuiID ID;
int LastFrameActive; // Last used frame-count, for GC.
int LastSelectionSize; // Set by BeginMultiSelect() based on optional info provided by user. May be -1 if unknown.
ImS8 RangeSelected; // -1 (don't have) or true/false
ImS8 NavIdSelected; // -1 (don't have) or true/false
ImGuiSelectionUserData RangeSrcItem; //
ImGuiSelectionUserData NavIdItem; // SetNextItemSelectionUserData() value for NavId (if part of submitted items)
ImGuiMultiSelectState() { Window = NULL; ID = 0; LastFrameActive = LastSelectionSize = 0; RangeSelected = NavIdSelected = -1; RangeSrcItem = NavIdItem = ImGuiSelectionUserData_Invalid; }
};
//-----------------------------------------------------------------------------
// [SECTION] Docking support
//-----------------------------------------------------------------------------
#define DOCKING_HOST_DRAW_CHANNEL_BG 0 // Dock host: background fill
#define DOCKING_HOST_DRAW_CHANNEL_FG 1 // Dock host: decorations and contents
#ifdef IMGUI_HAS_DOCK
// Extend ImGuiDockNodeFlags_
enum ImGuiDockNodeFlagsPrivate_
{
// [Internal]
ImGuiDockNodeFlags_DockSpace = 1 << 10, // Saved // A dockspace is a node that occupy space within an existing user window. Otherwise the node is floating and create its own window.
ImGuiDockNodeFlags_CentralNode = 1 << 11, // Saved // The central node has 2 main properties: stay visible when empty, only use "remaining" spaces from its neighbor.
ImGuiDockNodeFlags_NoTabBar = 1 << 12, // Saved // Tab bar is completely unavailable. No triangle in the corner to enable it back.
ImGuiDockNodeFlags_HiddenTabBar = 1 << 13, // Saved // Tab bar is hidden, with a triangle in the corner to show it again (NB: actual tab-bar instance may be destroyed as this is only used for single-window tab bar)
ImGuiDockNodeFlags_NoWindowMenuButton = 1 << 14, // Saved // Disable window/docking menu (that one that appears instead of the collapse button)
ImGuiDockNodeFlags_NoCloseButton = 1 << 15, // Saved // Disable close button
ImGuiDockNodeFlags_NoResizeX = 1 << 16, // //
ImGuiDockNodeFlags_NoResizeY = 1 << 17, // //
ImGuiDockNodeFlags_DockedWindowsInFocusRoute= 1 << 18, // // Any docked window will be automatically be focus-route chained (window->ParentWindowForFocusRoute set to this) so Shortcut() in this window can run when any docked window is focused.
// Disable docking/undocking actions in this dockspace or individual node (existing docked nodes will be preserved)
// Those are not exposed in public because the desirable sharing/inheriting/copy-flag-on-split behaviors are quite difficult to design and understand.
// The two public flags ImGuiDockNodeFlags_NoDockingOverCentralNode/ImGuiDockNodeFlags_NoDockingSplit don't have those issues.
ImGuiDockNodeFlags_NoDockingSplitOther = 1 << 19, // // Disable this node from splitting other windows/nodes.
ImGuiDockNodeFlags_NoDockingOverMe = 1 << 20, // // Disable other windows/nodes from being docked over this node.
ImGuiDockNodeFlags_NoDockingOverOther = 1 << 21, // // Disable this node from being docked over another window or non-empty node.
ImGuiDockNodeFlags_NoDockingOverEmpty = 1 << 22, // // Disable this node from being docked over an empty node (e.g. DockSpace with no other windows)
ImGuiDockNodeFlags_NoDocking = ImGuiDockNodeFlags_NoDockingOverMe | ImGuiDockNodeFlags_NoDockingOverOther | ImGuiDockNodeFlags_NoDockingOverEmpty | ImGuiDockNodeFlags_NoDockingSplit | ImGuiDockNodeFlags_NoDockingSplitOther,
// Masks
ImGuiDockNodeFlags_SharedFlagsInheritMask_ = ~0,
ImGuiDockNodeFlags_NoResizeFlagsMask_ = (int)ImGuiDockNodeFlags_NoResize | ImGuiDockNodeFlags_NoResizeX | ImGuiDockNodeFlags_NoResizeY,
// When splitting, those local flags are moved to the inheriting child, never duplicated
ImGuiDockNodeFlags_LocalFlagsTransferMask_ = (int)ImGuiDockNodeFlags_NoDockingSplit | ImGuiDockNodeFlags_NoResizeFlagsMask_ | (int)ImGuiDockNodeFlags_AutoHideTabBar | ImGuiDockNodeFlags_CentralNode | ImGuiDockNodeFlags_NoTabBar | ImGuiDockNodeFlags_HiddenTabBar | ImGuiDockNodeFlags_NoWindowMenuButton | ImGuiDockNodeFlags_NoCloseButton,
ImGuiDockNodeFlags_SavedFlagsMask_ = ImGuiDockNodeFlags_NoResizeFlagsMask_ | ImGuiDockNodeFlags_DockSpace | ImGuiDockNodeFlags_CentralNode | ImGuiDockNodeFlags_NoTabBar | ImGuiDockNodeFlags_HiddenTabBar | ImGuiDockNodeFlags_NoWindowMenuButton | ImGuiDockNodeFlags_NoCloseButton,
};
// Store the source authority (dock node vs window) of a field
enum ImGuiDataAuthority_
{
ImGuiDataAuthority_Auto,
ImGuiDataAuthority_DockNode,
ImGuiDataAuthority_Window,
};
enum ImGuiDockNodeState
{
ImGuiDockNodeState_Unknown,
ImGuiDockNodeState_HostWindowHiddenBecauseSingleWindow,
ImGuiDockNodeState_HostWindowHiddenBecauseWindowsAreResizing,
ImGuiDockNodeState_HostWindowVisible,
};
// sizeof() 156~192
struct IMGUI_API ImGuiDockNode
{
ImGuiID ID;
ImGuiDockNodeFlags SharedFlags; // (Write) Flags shared by all nodes of a same dockspace hierarchy (inherited from the root node)
ImGuiDockNodeFlags LocalFlags; // (Write) Flags specific to this node
ImGuiDockNodeFlags LocalFlagsInWindows; // (Write) Flags specific to this node, applied from windows
ImGuiDockNodeFlags MergedFlags; // (Read) Effective flags (== SharedFlags | LocalFlagsInNode | LocalFlagsInWindows)
ImGuiDockNodeState State;
ImGuiDockNode* ParentNode;
ImGuiDockNode* ChildNodes[2]; // [Split node only] Child nodes (left/right or top/bottom). Consider switching to an array.
ImVector<ImGuiWindow*> Windows; // Note: unordered list! Iterate TabBar->Tabs for user-order.
ImGuiTabBar* TabBar;
ImVec2 Pos; // Current position
ImVec2 Size; // Current size
ImVec2 SizeRef; // [Split node only] Last explicitly written-to size (overridden when using a splitter affecting the node), used to calculate Size.
ImGuiAxis SplitAxis; // [Split node only] Split axis (X or Y)
ImGuiWindowClass WindowClass; // [Root node only]
ImU32 LastBgColor;
ImGuiWindow* HostWindow;
ImGuiWindow* VisibleWindow; // Generally point to window which is ID is == SelectedTabID, but when CTRL+Tabbing this can be a different window.
ImGuiDockNode* CentralNode; // [Root node only] Pointer to central node.
ImGuiDockNode* OnlyNodeWithWindows; // [Root node only] Set when there is a single visible node within the hierarchy.
int CountNodeWithWindows; // [Root node only]
int LastFrameAlive; // Last frame number the node was updated or kept alive explicitly with DockSpace() + ImGuiDockNodeFlags_KeepAliveOnly
int LastFrameActive; // Last frame number the node was updated.
int LastFrameFocused; // Last frame number the node was focused.
ImGuiID LastFocusedNodeId; // [Root node only] Which of our child docking node (any ancestor in the hierarchy) was last focused.
ImGuiID SelectedTabId; // [Leaf node only] Which of our tab/window is selected.
ImGuiID WantCloseTabId; // [Leaf node only] Set when closing a specific tab/window.
ImGuiID RefViewportId; // Reference viewport ID from visible window when HostWindow == NULL.
ImGuiDataAuthority AuthorityForPos :3;
ImGuiDataAuthority AuthorityForSize :3;
ImGuiDataAuthority AuthorityForViewport :3;
bool IsVisible :1; // Set to false when the node is hidden (usually disabled as it has no active window)
bool IsFocused :1;
bool IsBgDrawnThisFrame :1;
bool HasCloseButton :1; // Provide space for a close button (if any of the docked window has one). Note that button may be hidden on window without one.
bool HasWindowMenuButton :1;
bool HasCentralNodeChild :1;
bool WantCloseAll :1; // Set when closing all tabs at once.
bool WantLockSizeOnce :1;
bool WantMouseMove :1; // After a node extraction we need to transition toward moving the newly created host window
bool WantHiddenTabBarUpdate :1;
bool WantHiddenTabBarToggle :1;
ImGuiDockNode(ImGuiID id);
~ImGuiDockNode();
bool IsRootNode() const { return ParentNode == NULL; }
bool IsDockSpace() const { return (MergedFlags & ImGuiDockNodeFlags_DockSpace) != 0; }
bool IsFloatingNode() const { return ParentNode == NULL && (MergedFlags & ImGuiDockNodeFlags_DockSpace) == 0; }
bool IsCentralNode() const { return (MergedFlags & ImGuiDockNodeFlags_CentralNode) != 0; }
bool IsHiddenTabBar() const { return (MergedFlags & ImGuiDockNodeFlags_HiddenTabBar) != 0; } // Hidden tab bar can be shown back by clicking the small triangle
bool IsNoTabBar() const { return (MergedFlags & ImGuiDockNodeFlags_NoTabBar) != 0; } // Never show a tab bar
bool IsSplitNode() const { return ChildNodes[0] != NULL; }
bool IsLeafNode() const { return ChildNodes[0] == NULL; }
bool IsEmpty() const { return ChildNodes[0] == NULL && Windows.Size == 0; }
ImRect Rect() const { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
void SetLocalFlags(ImGuiDockNodeFlags flags) { LocalFlags = flags; UpdateMergedFlags(); }
void UpdateMergedFlags() { MergedFlags = SharedFlags | LocalFlags | LocalFlagsInWindows; }
};
// List of colors that are stored at the time of Begin() into Docked Windows.
// We currently store the packed colors in a simple array window->DockStyle.Colors[].
// A better solution may involve appending into a log of colors in ImGuiContext + store offsets into those arrays in ImGuiWindow,
// but it would be more complex as we'd need to double-buffer both as e.g. drop target may refer to window from last frame.
enum ImGuiWindowDockStyleCol
{
ImGuiWindowDockStyleCol_Text,
ImGuiWindowDockStyleCol_TabHovered,
ImGuiWindowDockStyleCol_TabFocused,
ImGuiWindowDockStyleCol_TabSelected,
ImGuiWindowDockStyleCol_TabSelectedOverline,
ImGuiWindowDockStyleCol_TabDimmed,
ImGuiWindowDockStyleCol_TabDimmedSelected,
ImGuiWindowDockStyleCol_TabDimmedSelectedOverline,
ImGuiWindowDockStyleCol_COUNT
};
// We don't store style.Alpha: dock_node->LastBgColor embeds it and otherwise it would only affect the docking tab, which intuitively I would say we don't want to.
struct ImGuiWindowDockStyle
{
ImU32 Colors[ImGuiWindowDockStyleCol_COUNT];
};
struct ImGuiDockContext
{
ImGuiStorage Nodes; // Map ID -> ImGuiDockNode*: Active nodes
ImVector<ImGuiDockRequest> Requests;
ImVector<ImGuiDockNodeSettings> NodesSettings;
bool WantFullRebuild;
ImGuiDockContext() { memset(this, 0, sizeof(*this)); }
};
#endif // #ifdef IMGUI_HAS_DOCK
//-----------------------------------------------------------------------------
// [SECTION] Viewport support
//-----------------------------------------------------------------------------
// ImGuiViewport Private/Internals fields (cardinal sin: we are using inheritance!)
// Every instance of ImGuiViewport is in fact a ImGuiViewportP.
struct ImGuiViewportP : public ImGuiViewport
{
ImGuiWindow* Window; // Set when the viewport is owned by a window (and ImGuiViewportFlags_CanHostOtherWindows is NOT set)
int Idx;
int LastFrameActive; // Last frame number this viewport was activated by a window
int LastFocusedStampCount; // Last stamp number from when a window hosted by this viewport was focused (by comparing this value between two viewport we have an implicit viewport z-order we use as fallback)
ImGuiID LastNameHash;
ImVec2 LastPos;
float Alpha; // Window opacity (when dragging dockable windows/viewports we make them transparent)
float LastAlpha;
bool LastFocusedHadNavWindow;// Instead of maintaining a LastFocusedWindow (which may harder to correctly maintain), we merely store weither NavWindow != NULL last time the viewport was focused.
short PlatformMonitor;
int BgFgDrawListsLastFrame[2]; // Last frame number the background (0) and foreground (1) draw lists were used
ImDrawList* BgFgDrawLists[2]; // Convenience background (0) and foreground (1) draw lists. We use them to draw software mouser cursor when io.MouseDrawCursor is set and to draw most debug overlays.
ImDrawData DrawDataP;
ImDrawDataBuilder DrawDataBuilder; // Temporary data while building final ImDrawData
ImVec2 LastPlatformPos;
ImVec2 LastPlatformSize;
ImVec2 LastRendererSize;
// Per-viewport work area
// - Insets are >= 0.0f values, distance from viewport corners to work area.
// - BeginMainMenuBar() and DockspaceOverViewport() tend to use work area to avoid stepping over existing contents.
// - Generally 'safeAreaInsets' in iOS land, 'DisplayCutout' in Android land.
ImVec2 WorkInsetMin; // Work Area inset locked for the frame. GetWorkRect() always fits within GetMainRect().
ImVec2 WorkInsetMax; // "
ImVec2 BuildWorkInsetMin; // Work Area inset accumulator for current frame, to become next frame's WorkInset
ImVec2 BuildWorkInsetMax; // "
ImGuiViewportP() { Window = NULL; Idx = -1; LastFrameActive = BgFgDrawListsLastFrame[0] = BgFgDrawListsLastFrame[1] = LastFocusedStampCount = -1; LastNameHash = 0; Alpha = LastAlpha = 1.0f; LastFocusedHadNavWindow = false; PlatformMonitor = -1; BgFgDrawLists[0] = BgFgDrawLists[1] = NULL; LastPlatformPos = LastPlatformSize = LastRendererSize = ImVec2(FLT_MAX, FLT_MAX); }
~ImGuiViewportP() { if (BgFgDrawLists[0]) IM_DELETE(BgFgDrawLists[0]); if (BgFgDrawLists[1]) IM_DELETE(BgFgDrawLists[1]); }
void ClearRequestFlags() { PlatformRequestClose = PlatformRequestMove = PlatformRequestResize = false; }
// Calculate work rect pos/size given a set of offset (we have 1 pair of offset for rect locked from last frame data, and 1 pair for currently building rect)
ImVec2 CalcWorkRectPos(const ImVec2& inset_min) const { return ImVec2(Pos.x + inset_min.x, Pos.y + inset_min.y); }
ImVec2 CalcWorkRectSize(const ImVec2& inset_min, const ImVec2& inset_max) const { return ImVec2(ImMax(0.0f, Size.x - inset_min.x - inset_max.x), ImMax(0.0f, Size.y - inset_min.y - inset_max.y)); }
void UpdateWorkRect() { WorkPos = CalcWorkRectPos(WorkInsetMin); WorkSize = CalcWorkRectSize(WorkInsetMin, WorkInsetMax); } // Update public fields
// Helpers to retrieve ImRect (we don't need to store BuildWorkRect as every access tend to change it, hence the code asymmetry)
ImRect GetMainRect() const { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
ImRect GetWorkRect() const { return ImRect(WorkPos.x, WorkPos.y, WorkPos.x + WorkSize.x, WorkPos.y + WorkSize.y); }
ImRect GetBuildWorkRect() const { ImVec2 pos = CalcWorkRectPos(BuildWorkInsetMin); ImVec2 size = CalcWorkRectSize(BuildWorkInsetMin, BuildWorkInsetMax); return ImRect(pos.x, pos.y, pos.x + size.x, pos.y + size.y); }
};
//-----------------------------------------------------------------------------
// [SECTION] Settings support
//-----------------------------------------------------------------------------
// Windows data saved in imgui.ini file
// Because we never destroy or rename ImGuiWindowSettings, we can store the names in a separate buffer easily.
// (this is designed to be stored in a ImChunkStream buffer, with the variable-length Name following our structure)
struct ImGuiWindowSettings
{
ImGuiID ID;
ImVec2ih Pos; // NB: Settings position are stored RELATIVE to the viewport! Whereas runtime ones are absolute positions.
ImVec2ih Size;
ImVec2ih ViewportPos;
ImGuiID ViewportId;
ImGuiID DockId; // ID of last known DockNode (even if the DockNode is invisible because it has only 1 active window), or 0 if none.
ImGuiID ClassId; // ID of window class if specified
short DockOrder; // Order of the last time the window was visible within its DockNode. This is used to reorder windows that are reappearing on the same frame. Same value between windows that were active and windows that were none are possible.
bool Collapsed;
bool IsChild;
bool WantApply; // Set when loaded from .ini data (to enable merging/loading .ini data into an already running context)
bool WantDelete; // Set to invalidate/delete the settings entry
ImGuiWindowSettings() { memset(this, 0, sizeof(*this)); DockOrder = -1; }
char* GetName() { return (char*)(this + 1); }
};
struct ImGuiSettingsHandler
{
const char* TypeName; // Short description stored in .ini file. Disallowed characters: '[' ']'
ImGuiID TypeHash; // == ImHashStr(TypeName)
void (*ClearAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Clear all settings data
void (*ReadInitFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Read: Called before reading (in registration order)
void* (*ReadOpenFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, const char* name); // Read: Called when entering into a new ini entry e.g. "[Window][Name]"
void (*ReadLineFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, void* entry, const char* line); // Read: Called for every line of text within an ini entry
void (*ApplyAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Read: Called after reading (in registration order)
void (*WriteAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* out_buf); // Write: Output every entries into 'out_buf'
void* UserData;
ImGuiSettingsHandler() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] Localization support
//-----------------------------------------------------------------------------
// This is experimental and not officially supported, it'll probably fall short of features, if/when it does we may backtrack.
enum ImGuiLocKey : int
{
ImGuiLocKey_VersionStr,
ImGuiLocKey_TableSizeOne,
ImGuiLocKey_TableSizeAllFit,
ImGuiLocKey_TableSizeAllDefault,
ImGuiLocKey_TableResetOrder,
ImGuiLocKey_WindowingMainMenuBar,
ImGuiLocKey_WindowingPopup,
ImGuiLocKey_WindowingUntitled,
ImGuiLocKey_CopyLink,
ImGuiLocKey_DockingHideTabBar,
ImGuiLocKey_DockingHoldShiftToDock,
ImGuiLocKey_DockingDragToUndockOrMoveNode,
ImGuiLocKey_COUNT
};
struct ImGuiLocEntry
{
ImGuiLocKey Key;
const char* Text;
};
//-----------------------------------------------------------------------------
// [SECTION] Metrics, Debug Tools
//-----------------------------------------------------------------------------
enum ImGuiDebugLogFlags_
{
// Event types
ImGuiDebugLogFlags_None = 0,
ImGuiDebugLogFlags_EventActiveId = 1 << 0,
ImGuiDebugLogFlags_EventFocus = 1 << 1,
ImGuiDebugLogFlags_EventPopup = 1 << 2,
ImGuiDebugLogFlags_EventNav = 1 << 3,
ImGuiDebugLogFlags_EventClipper = 1 << 4,
ImGuiDebugLogFlags_EventSelection = 1 << 5,
ImGuiDebugLogFlags_EventIO = 1 << 6,
ImGuiDebugLogFlags_EventInputRouting = 1 << 7,
ImGuiDebugLogFlags_EventDocking = 1 << 8,
ImGuiDebugLogFlags_EventViewport = 1 << 9,
ImGuiDebugLogFlags_EventMask_ = ImGuiDebugLogFlags_EventActiveId | ImGuiDebugLogFlags_EventFocus | ImGuiDebugLogFlags_EventPopup | ImGuiDebugLogFlags_EventNav | ImGuiDebugLogFlags_EventClipper | ImGuiDebugLogFlags_EventSelection | ImGuiDebugLogFlags_EventIO | ImGuiDebugLogFlags_EventInputRouting | ImGuiDebugLogFlags_EventDocking | ImGuiDebugLogFlags_EventViewport,
ImGuiDebugLogFlags_OutputToTTY = 1 << 20, // Also send output to TTY
ImGuiDebugLogFlags_OutputToTestEngine = 1 << 21, // Also send output to Test Engine
};
struct ImGuiDebugAllocEntry
{
int FrameCount;
ImS16 AllocCount;
ImS16 FreeCount;
};
struct ImGuiDebugAllocInfo
{
int TotalAllocCount; // Number of call to MemAlloc().
int TotalFreeCount;
ImS16 LastEntriesIdx; // Current index in buffer
ImGuiDebugAllocEntry LastEntriesBuf[6]; // Track last 6 frames that had allocations
ImGuiDebugAllocInfo() { memset(this, 0, sizeof(*this)); }
};
struct ImGuiMetricsConfig
{
bool ShowDebugLog = false;
bool ShowIDStackTool = false;
bool ShowWindowsRects = false;
bool ShowWindowsBeginOrder = false;
bool ShowTablesRects = false;
bool ShowDrawCmdMesh = true;
bool ShowDrawCmdBoundingBoxes = true;
bool ShowTextEncodingViewer = false;
bool ShowAtlasTintedWithTextColor = false;
bool ShowDockingNodes = false;
int ShowWindowsRectsType = -1;
int ShowTablesRectsType = -1;
int HighlightMonitorIdx = -1;
ImGuiID HighlightViewportID = 0;
};
struct ImGuiStackLevelInfo
{
ImGuiID ID;
ImS8 QueryFrameCount; // >= 1: Query in progress
bool QuerySuccess; // Obtained result from DebugHookIdInfo()
ImGuiDataType DataType : 8;
char Desc[57]; // Arbitrarily sized buffer to hold a result (FIXME: could replace Results[] with a chunk stream?) FIXME: Now that we added CTRL+C this should be fixed.
ImGuiStackLevelInfo() { memset(this, 0, sizeof(*this)); }
};
// State for ID Stack tool queries
struct ImGuiIDStackTool
{
int LastActiveFrame;
int StackLevel; // -1: query stack and resize Results, >= 0: individual stack level
ImGuiID QueryId; // ID to query details for
ImVector<ImGuiStackLevelInfo> Results;
bool CopyToClipboardOnCtrlC;
float CopyToClipboardLastTime;
ImGuiIDStackTool() { memset(this, 0, sizeof(*this)); CopyToClipboardLastTime = -FLT_MAX; }
};
//-----------------------------------------------------------------------------
// [SECTION] Generic context hooks
//-----------------------------------------------------------------------------
typedef void (*ImGuiContextHookCallback)(ImGuiContext* ctx, ImGuiContextHook* hook);
enum ImGuiContextHookType { ImGuiContextHookType_NewFramePre, ImGuiContextHookType_NewFramePost, ImGuiContextHookType_EndFramePre, ImGuiContextHookType_EndFramePost, ImGuiContextHookType_RenderPre, ImGuiContextHookType_RenderPost, ImGuiContextHookType_Shutdown, ImGuiContextHookType_PendingRemoval_ };
struct ImGuiContextHook
{
ImGuiID HookId; // A unique ID assigned by AddContextHook()
ImGuiContextHookType Type;
ImGuiID Owner;
ImGuiContextHookCallback Callback;
void* UserData;
ImGuiContextHook() { memset(this, 0, sizeof(*this)); }
};
//-----------------------------------------------------------------------------
// [SECTION] ImGuiContext (main Dear ImGui context)
//-----------------------------------------------------------------------------
struct ImGuiContext
{
bool Initialized;
bool FontAtlasOwnedByContext; // IO.Fonts-> is owned by the ImGuiContext and will be destructed along with it.
ImGuiIO IO;
ImGuiPlatformIO PlatformIO;
ImGuiStyle Style;
ImGuiConfigFlags ConfigFlagsCurrFrame; // = g.IO.ConfigFlags at the time of NewFrame()
ImGuiConfigFlags ConfigFlagsLastFrame;
ImFont* Font; // (Shortcut) == FontStack.empty() ? IO.Font : FontStack.back()
float FontSize; // (Shortcut) == FontBaseSize * g.CurrentWindow->FontWindowScale == window->FontSize(). Text height for current window.
float FontBaseSize; // (Shortcut) == IO.FontGlobalScale * Font->Scale * Font->FontSize. Base text height.
float FontScale; // == FontSize / Font->FontSize
float CurrentDpiScale; // Current window/viewport DpiScale == CurrentViewport->DpiScale
ImDrawListSharedData DrawListSharedData;
double Time;
int FrameCount;
int FrameCountEnded;
int FrameCountPlatformEnded;
int FrameCountRendered;
bool WithinFrameScope; // Set by NewFrame(), cleared by EndFrame()
bool WithinFrameScopeWithImplicitWindow; // Set by NewFrame(), cleared by EndFrame() when the implicit debug window has been pushed
bool WithinEndChild; // Set within EndChild()