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s464967_przetwarzanie_obraz.../imgui_internal.h
LixayTF 9d16f23715 Projekt wersja 5
2023-07-06 14:10:47 +02:00

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// dear imgui, v1.89.6
// (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.
// To implement maths operators for ImVec2 (disabled by default to not conflict with using IM_VEC2_CLASS_EXTRA with your own math types+operators), use:
/*
#define IMGUI_DEFINE_MATH_OPERATORS
#include "imgui_internal.h"
*/
/*
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] Widgets support: flags, enums, data structures
// [SECTION] Inputs support
// [SECTION] Clipper support
// [SECTION] Navigation support
// [SECTION] Columns 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 ImFloorSigned()
#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'
#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
#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 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 avoid style variables from an enum)
struct ImGuiDataTypeInfo; // Type information associated to a ImGuiDataType enum
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 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 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 ImGuiWindow; // Storage for one window
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 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 ImGuiInputFlags; // -> enum ImGuiInputFlags_ // Flags: for IsKeyPressed(), IsMouseClicked(), SetKeyOwner(), SetItemKeyOwner() etc.
typedef int ImGuiItemFlags; // -> enum ImGuiItemFlags_ // Flags: for PushItemFlag(), g.LastItemData.InFlags
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 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 STB_TEXTEDIT_STRING
#undef STB_TEXTEDIT_CHARTYPE
#define STB_TEXTEDIT_STRING ImGuiInputTextState
#define STB_TEXTEDIT_CHARTYPE ImWchar
#define STB_TEXTEDIT_GETWIDTH_NEWLINE (-1.0f)
#define STB_TEXTEDIT_UNDOSTATECOUNT 99
#define STB_TEXTEDIT_UNDOCHARCOUNT 999
#include "imstb_textedit.h"
} // namespace ImStb
//-----------------------------------------------------------------------------
// [SECTION] Macros
//-----------------------------------------------------------------------------
// 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)
// 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_FLOOR(_VAL) ((float)(int)(_VAL)) // ImFloor() is not inlined in MSVC debug builds
#define IM_ROUND(_VAL) ((float)(int)((_VAL) + 0.5f)) //
// 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("int $0x03")
#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
//-----------------------------------------------------------------------------
// [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
//-----------------------------------------------------------------------------
// 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);
IMGUI_API int ImStrnicmp(const char* str1, const char* str2, size_t count);
IMGUI_API void ImStrncpy(char* dst, const char* src, size_t count);
IMGUI_API char* ImStrdup(const char* str);
IMGUI_API char* ImStrdupcpy(char* dst, size_t* p_dst_size, const char* str);
IMGUI_API const char* ImStrchrRange(const char* str_begin, const char* str_end, char c);
IMGUI_API int ImStrlenW(const ImWchar* str);
IMGUI_API const char* ImStreolRange(const char* str, const char* str_end); // End end-of-line
IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin); // Find beginning-of-line
IMGUI_API const char* ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end);
IMGUI_API void ImStrTrimBlanks(char* str);
IMGUI_API const char* ImStrSkipBlank(const char* str);
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; }
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
// 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 ImFloorStd(X) floorf(X) // We use our own, see ImFloor() and ImFloorSigned()
#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, 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 ImFloor(float f) { return (float)(int)(f); }
static inline float ImFloorSigned(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((float)(int)(v.x), (float)(int)(v.y)); }
static inline ImVec2 ImFloorSigned(const ImVec2& v) { return ImVec2(ImFloorSigned(v.x), ImFloorSigned(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 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; }
// 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 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_FLOOR(Min.x); Min.y = IM_FLOOR(Min.y); Max.x = IM_FLOOR(Max.x); Max.y = IM_FLOOR(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); }
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
int GetSize() { return GetMapSize(); } // For ImPlot: should use GetMapSize() from (IMGUI_VERSION_NUM >= 18304)
#endif
};
// 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);
};
//-----------------------------------------------------------------------------
// [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 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]; // Global layers for: regular, tooltip
void Clear() { for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) Layers[n].resize(0); }
void ClearFreeMemory() { for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) Layers[n].clear(); }
int GetDrawListCount() const { int count = 0; for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) count += Layers[n].Size; return count; }
IMGUI_API void FlattenIntoSingleLayer();
};
//-----------------------------------------------------------------------------
// [SECTION] Widgets support: flags, enums, data structures
//-----------------------------------------------------------------------------
// Flags used by upcoming items
// - input: PushItemFlag() manipulates g.CurrentItemFlags, ItemAdd() calls may add extra flags.
// - output: stored in g.LastItemData.InFlags
// Current window shared by all windows.
// This is going to be exposed in imgui.h when stabilized enough.
enum ImGuiItemFlags_
{
// Controlled by user
ImGuiItemFlags_None = 0,
ImGuiItemFlags_NoTabStop = 1 << 0, // false // Disable keyboard tabbing. This is a "lighter" version of ImGuiItemFlags_NoNav.
ImGuiItemFlags_ButtonRepeat = 1 << 1, // false // Button() will return true multiple times based on io.KeyRepeatDelay and io.KeyRepeatRate settings.
ImGuiItemFlags_Disabled = 1 << 2, // false // Disable interactions but doesn't affect visuals. See BeginDisabled()/EndDisabled(). See github.com/ocornut/imgui/issues/211
ImGuiItemFlags_NoNav = 1 << 3, // false // Disable any form of focusing (keyboard/gamepad directional navigation and SetKeyboardFocusHere() calls)
ImGuiItemFlags_NoNavDefaultFocus = 1 << 4, // false // Disable item being a candidate for default focus (e.g. used by title bar items)
ImGuiItemFlags_SelectableDontClosePopup = 1 << 5, // false // Disable MenuItem/Selectable() automatically closing their popup window
ImGuiItemFlags_MixedValue = 1 << 6, // 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_ReadOnly = 1 << 7, // false // [ALPHA] Allow hovering interactions but underlying value is not changed.
ImGuiItemFlags_NoWindowHoverableCheck = 1 << 8, // false // Disable hoverable check in ItemHoverable()
// Controlled by widget code
ImGuiItemFlags_Inputable = 1 << 10, // false // [WIP] Auto-activate input mode when tab focused. Currently only used and supported by a few items before it becomes a generic feature.
};
// 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_FocusedByTabbing = 1 << 8, // Set when the Focusable item just got focused by Tabbing (FIXME: to be removed soon)
ImGuiItemStatusFlags_Visible = 1 << 9, // [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()).
// 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 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.
};
// 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_AllowItemOverlap = 1 << 12, // require previous frame HoveredId to either match id or be null before being usable, use along with SetItemAllowOverlap()
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 everytime 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,
};
// 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 << 20,
};
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_OverridePreviousTooltip = 1 << 0, // Override will 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,
};
enum ImGuiPopupPositionPolicy
{
ImGuiPopupPositionPolicy_Default,
ImGuiPopupPositionPolicy_ComboBox,
ImGuiPopupPositionPolicy_Tooltip,
};
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 ImGuiDataTypeTempStorage
{
ImU8 Data[8]; // Can 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,
};
// 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;
ImVec1 BackupIndent;
ImVec1 BackupGroupOffset;
ImVec2 BackupCurrLineSize;
float BackupCurrLineTextBaseOffset;
ImGuiID BackupActiveIdIsAlive;
bool BackupActiveIdPreviousFrameIsAlive;
bool BackupHoveredIdIsAlive;
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; // 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
float ScrollX; // horizontal scrolling/offset
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.
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 STB_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; }
};
// Storage for current popup stack
struct ImGuiPopupData
{
ImGuiID PopupId; // Set on OpenPopup()
ImGuiWindow* Window; // Resolved on BeginPopup() - may stay unresolved if user never calls OpenPopup()
ImGuiWindow* BackupNavWindow;// 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; }
};
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,
};
// Storage for SetNexWindow** functions
struct ImGuiNextWindowData
{
ImGuiNextWindowDataFlags Flags;
ImGuiCond PosCond;
ImGuiCond SizeCond;
ImGuiCond CollapsedCond;
ImVec2 PosVal;
ImVec2 PosPivotVal;
ImVec2 SizeVal;
ImVec2 ContentSizeVal;
ImVec2 ScrollVal;
bool CollapsedVal;
ImRect SizeConstraintRect;
ImGuiSizeCallback SizeCallback;
void* SizeCallbackUserData;
float BgAlphaVal; // Override background alpha
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?)
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,
};
struct ImGuiNextItemData
{
ImGuiNextItemDataFlags Flags;
float Width; // Set by SetNextItemWidth()
ImGuiID FocusScopeId; // Set by SetNextItemMultiSelectData() (!= 0 signify value has been set, so it's an alternate version of HasSelectionData, we don't use Flags for this because they are cleared too early. This is mostly used for debugging)
ImGuiCond OpenCond;
bool OpenVal; // Set by SetNextItemOpen()
ImGuiNextItemData() { memset(this, 0, sizeof(*this)); }
inline void ClearFlags() { Flags = ImGuiNextItemDataFlags_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)
ImRect DisplayRect; // Display rectangle (only if ImGuiItemStatusFlags_HasDisplayRect is set)
ImGuiLastItemData() { memset(this, 0, sizeof(*this)); }
};
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
};
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] 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 ImGuiKey_GamepadFaceDown
#define ImGuiKey_NavGamepadCancel ImGuiKey_GamepadFaceRight
#define ImGuiKey_NavGamepadMenu ImGuiKey_GamepadFaceLeft
#define ImGuiKey_NavGamepadInput ImGuiKey_GamepadFaceUp
enum ImGuiInputEventType
{
ImGuiInputEventType_None = 0,
ImGuiInputEventType_MousePos,
ImGuiInputEventType_MouseWheel,
ImGuiInputEventType_MouseButton,
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_Clipboard, // Currently only used by InputText()
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 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
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_None ((ImGuiID)-1) // Require key to have no owner.
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. ImGuiMod_Shortcut is already translated to Ctrl/Super.
ImU8 RoutingNextScore; // Lower is better (0: perfect score)
ImGuiID RoutingCurr;
ImGuiID RoutingNext;
ImGuiKeyRoutingData() { NextEntryIndex = -1; Mods = 0; RoutingNextScore = 255; RoutingCurr = RoutingNext = ImGuiKeyOwner_None; }
};
// 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_None; LockThisFrame = LockUntilRelease = false; }
};
// Flags for extended versions of IsKeyPressed(), IsMouseClicked(), Shortcut(), SetKeyOwner(), SetItemKeyOwner()
// Don't mistake with ImGuiInputTextFlags! (for ImGui::InputText() function)
enum ImGuiInputFlags_
{
// Flags for IsKeyPressed(), IsMouseClicked(), Shortcut()
ImGuiInputFlags_None = 0,
ImGuiInputFlags_Repeat = 1 << 0, // Return true on successive repeats. Default for legacy IsKeyPressed(). NOT Default for legacy IsMouseClicked(). MUST BE == 1.
ImGuiInputFlags_RepeatRateDefault = 1 << 1, // Repeat rate: Regular (default)
ImGuiInputFlags_RepeatRateNavMove = 1 << 2, // Repeat rate: Fast
ImGuiInputFlags_RepeatRateNavTweak = 1 << 3, // Repeat rate: Faster
ImGuiInputFlags_RepeatRateMask_ = ImGuiInputFlags_RepeatRateDefault | ImGuiInputFlags_RepeatRateNavMove | ImGuiInputFlags_RepeatRateNavTweak,
// Flags for SetItemKeyOwner()
ImGuiInputFlags_CondHovered = 1 << 4, // Only set if item is hovered (default to both)
ImGuiInputFlags_CondActive = 1 << 5, // Only set if item is active (default to both)
ImGuiInputFlags_CondDefault_ = ImGuiInputFlags_CondHovered | ImGuiInputFlags_CondActive,
ImGuiInputFlags_CondMask_ = ImGuiInputFlags_CondHovered | ImGuiInputFlags_CondActive,
// Flags for SetKeyOwner(), SetItemKeyOwner()
ImGuiInputFlags_LockThisFrame = 1 << 6, // Access to key data will require EXPLICIT owner ID (ImGuiKeyOwner_Any/0 will NOT accepted for polling). Cleared at end of frame. This is useful to make input-owner-aware code steal keys from non-input-owner-aware code.
ImGuiInputFlags_LockUntilRelease = 1 << 7, // Access 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. This is useful to make input-owner-aware code steal keys from non-input-owner-aware code.
// Routing policies for Shortcut() + low-level SetShortcutRouting()
// - The general idea is that several callers register interest in a shortcut, and only one owner gets it.
// - When a policy (other than _RouteAlways) is set, Shortcut() will register itself with SetShortcutRouting(),
// allowing the system to decide where to route the input among other route-aware calls.
// - Shortcut() uses ImGuiInputFlags_RouteFocused by default: meaning that a simple Shortcut() poll
// will register a route and only succeed when parent window is in the focus stack and if no-one
// with a higher priority is claiming the shortcut.
// - Using ImGuiInputFlags_RouteAlways is roughly equivalent to doing e.g. IsKeyPressed(key) + testing mods.
// - Priorities: GlobalHigh > Focused (when owner is active item) > Global > Focused (when focused window) > GlobalLow.
// - Can select only 1 policy among all available.
ImGuiInputFlags_RouteFocused = 1 << 8, // (Default) Register focused route: Accept inputs if window is in focus stack. Deep-most focused window takes inputs. ActiveId takes inputs over deep-most focused window.
ImGuiInputFlags_RouteGlobalLow = 1 << 9, // Register route globally (lowest priority: unless a focused window or active item registered the route) -> recommended Global priority.
ImGuiInputFlags_RouteGlobal = 1 << 10, // Register route globally (medium priority: unless an active item registered the route, e.g. CTRL+A registered by InputText).
ImGuiInputFlags_RouteGlobalHigh = 1 << 11, // Register route globally (highest priority: unlikely you need to use that: will interfere with every active items)
ImGuiInputFlags_RouteMask_ = ImGuiInputFlags_RouteFocused | ImGuiInputFlags_RouteGlobal | ImGuiInputFlags_RouteGlobalLow | ImGuiInputFlags_RouteGlobalHigh, // _Always not part of this!
ImGuiInputFlags_RouteAlways = 1 << 12, // Do not register route, poll keys directly.
ImGuiInputFlags_RouteUnlessBgFocused= 1 << 13, // Global routes will not be applied if underlying background/void is focused (== no Dear ImGui windows are focused). Useful for overlay applications.
ImGuiInputFlags_RouteExtraMask_ = ImGuiInputFlags_RouteAlways | ImGuiInputFlags_RouteUnlessBgFocused,
// [Internal] Mask of which function support which flags
ImGuiInputFlags_SupportedByIsKeyPressed = ImGuiInputFlags_Repeat | ImGuiInputFlags_RepeatRateMask_,
ImGuiInputFlags_SupportedByShortcut = ImGuiInputFlags_Repeat | ImGuiInputFlags_RepeatRateMask_ | ImGuiInputFlags_RouteMask_ | ImGuiInputFlags_RouteExtraMask_,
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)
};
// 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_TypeDefault = 1 << 0,
ImGuiNavHighlightFlags_TypeThin = 1 << 1,
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,
ImGuiNavMoveFlags_Tabbing = 1 << 10, // == Focus + Activate if item is Inputable + DontChangeNavHighlight
ImGuiNavMoveFlags_Activate = 1 << 11,
ImGuiNavMoveFlags_DontSetNavHighlight = 1 << 12, // Do not alter the visible state of keyboard vs mouse nav highlight
};
enum ImGuiNavLayer
{
ImGuiNavLayer_Main = 0, // Main scrolling layer
ImGuiNavLayer_Menu = 1, // Menu layer (access with Alt)
ImGuiNavLayer_COUNT
};
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
ImGuiNavItemData() { Clear(); }
void Clear() { Window = NULL; ID = FocusScopeId = 0; InFlags = 0; DistBox = DistCenter = DistAxial = FLT_MAX; }
};
//-----------------------------------------------------------------------------
// [SECTION] Columns support
//-----------------------------------------------------------------------------
// Flags for internal's BeginColumns(). Prefix 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, // (WIP) 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] Multi-select support
//-----------------------------------------------------------------------------
#ifdef IMGUI_HAS_MULTI_SELECT
// <this is filled in 'range_select' branch>
#endif // #ifdef IMGUI_HAS_MULTI_SELECT
//-----------------------------------------------------------------------------
// [SECTION] Docking support
//-----------------------------------------------------------------------------
#ifdef IMGUI_HAS_DOCK
// <this is filled in 'docking' branch>
#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
{
int DrawListsLastFrame[2]; // Last frame number the background (0) and foreground (1) draw lists were used
ImDrawList* DrawLists[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;
ImVec2 WorkOffsetMin; // Work Area: Offset from Pos to top-left corner of Work Area. Generally (0,0) or (0,+main_menu_bar_height). Work Area is Full Area but without menu-bars/status-bars (so WorkArea always fit inside Pos/Size!)
ImVec2 WorkOffsetMax; // Work Area: Offset from Pos+Size to bottom-right corner of Work Area. Generally (0,0) or (0,-status_bar_height).
ImVec2 BuildWorkOffsetMin; // Work Area: Offset being built during current frame. Generally >= 0.0f.
ImVec2 BuildWorkOffsetMax; // Work Area: Offset being built during current frame. Generally <= 0.0f.
ImGuiViewportP() { DrawListsLastFrame[0] = DrawListsLastFrame[1] = -1; DrawLists[0] = DrawLists[1] = NULL; }
~ImGuiViewportP() { if (DrawLists[0]) IM_DELETE(DrawLists[0]); if (DrawLists[1]) IM_DELETE(DrawLists[1]); }
// 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& off_min) const { return ImVec2(Pos.x + off_min.x, Pos.y + off_min.y); }
ImVec2 CalcWorkRectSize(const ImVec2& off_min, const ImVec2& off_max) const { return ImVec2(ImMax(0.0f, Size.x - off_min.x + off_max.x), ImMax(0.0f, Size.y - off_min.y + off_max.y)); }
void UpdateWorkRect() { WorkPos = CalcWorkRectPos(WorkOffsetMin); WorkSize = CalcWorkRectSize(WorkOffsetMin, WorkOffsetMax); } // 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(BuildWorkOffsetMin); ImVec2 size = CalcWorkRectSize(BuildWorkOffsetMin, BuildWorkOffsetMax); 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;
ImVec2ih Size;
bool Collapsed;
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)); }
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_TableSizeOne,
ImGuiLocKey_TableSizeAllFit,
ImGuiLocKey_TableSizeAllDefault,
ImGuiLocKey_TableResetOrder,
ImGuiLocKey_WindowingMainMenuBar,
ImGuiLocKey_WindowingPopup,
ImGuiLocKey_WindowingUntitled,
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_EventMask_ = ImGuiDebugLogFlags_EventActiveId | ImGuiDebugLogFlags_EventFocus | ImGuiDebugLogFlags_EventPopup | ImGuiDebugLogFlags_EventNav | ImGuiDebugLogFlags_EventClipper | ImGuiDebugLogFlags_EventSelection | ImGuiDebugLogFlags_EventIO,
ImGuiDebugLogFlags_OutputToTTY = 1 << 10, // Also send output to TTY
};
struct ImGuiMetricsConfig
{
bool ShowDebugLog = false;
bool ShowStackTool = false;
bool ShowWindowsRects = false;
bool ShowWindowsBeginOrder = false;
bool ShowTablesRects = false;
bool ShowDrawCmdMesh = true;
bool ShowDrawCmdBoundingBoxes = true;
bool ShowAtlasTintedWithTextColor = false;
int ShowWindowsRectsType = -1;
int ShowTablesRectsType = -1;
};
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 Stack tool queries
struct ImGuiStackTool
{
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;
ImGuiStackTool() { 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;
ImGuiStyle Style;
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.
ImDrawListSharedData DrawListSharedData;
double Time;
int FrameCount;
int FrameCountEnded;
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()
bool GcCompactAll; // Request full GC
bool TestEngineHookItems; // Will call test engine hooks: ImGuiTestEngineHook_ItemAdd(), ImGuiTestEngineHook_ItemInfo(), ImGuiTestEngineHook_Log()
void* TestEngine; // Test engine user data
// Inputs
ImVector<ImGuiInputEvent> InputEventsQueue; // Input events which will be trickled/written into IO structure.
ImVector<ImGuiInputEvent> InputEventsTrail; // Past input events processed in NewFrame(). This is to allow domain-specific application to access e.g mouse/pen trail.
ImGuiMouseSource InputEventsNextMouseSource;
ImU32 InputEventsNextEventId;
// Windows state
ImVector<ImGuiWindow*> Windows; // Windows, sorted in display order, back to front
ImVector<ImGuiWindow*> WindowsFocusOrder; // Root windows, sorted in focus order, back to front.
ImVector<ImGuiWindow*> WindowsTempSortBuffer; // Temporary buffer used in EndFrame() to reorder windows so parents are kept before their child
ImVector<ImGuiWindowStackData> CurrentWindowStack;
ImGuiStorage WindowsById; // Map window's ImGuiID to ImGuiWindow*
int WindowsActiveCount; // Number of unique windows submitted by frame
ImVec2 WindowsHoverPadding; // Padding around resizable windows for which hovering on counts as hovering the window == ImMax(style.TouchExtraPadding, WINDOWS_HOVER_PADDING)
ImGuiWindow* CurrentWindow; // Window being drawn into
ImGuiWindow* HoveredWindow; // Window the mouse is hovering. Will typically catch mouse inputs.
ImGuiWindow* HoveredWindowUnderMovingWindow; // Hovered window ignoring MovingWindow. Only set if MovingWindow is set.
ImGuiWindow* MovingWindow; // Track the window we clicked on (in order to preserve focus). The actual window that is moved is generally MovingWindow->RootWindow.
ImGuiWindow* WheelingWindow; // Track the window we started mouse-wheeling on. Until a timer elapse or mouse has moved, generally keep scrolling the same window even if during the course of scrolling the mouse ends up hovering a child window.
ImVec2 WheelingWindowRefMousePos;
int WheelingWindowStartFrame; // This may be set one frame before WheelingWindow is != NULL
float WheelingWindowReleaseTimer;
ImVec2 WheelingWindowWheelRemainder;
ImVec2 WheelingAxisAvg;
// Item/widgets state and tracking information
ImGuiID DebugHookIdInfo; // Will call core hooks: DebugHookIdInfo() from GetID functions, used by Stack Tool [next HoveredId/ActiveId to not pull in an extra cache-line]
ImGuiID HoveredId; // Hovered widget, filled during the frame
ImGuiID HoveredIdPreviousFrame;
bool HoveredIdAllowOverlap;
bool HoveredIdDisabled; // At least one widget passed the rect test, but has been discarded by disabled flag or popup inhibit. May be true even if HoveredId == 0.
float HoveredIdTimer; // Measure contiguous hovering time
float HoveredIdNotActiveTimer; // Measure contiguous hovering time where the item has not been active
ImGuiID ActiveId; // Active widget
ImGuiID ActiveIdIsAlive; // Active widget has been seen this frame (we can't use a bool as the ActiveId may change within the frame)
float ActiveIdTimer;
bool ActiveIdIsJustActivated; // Set at the time of activation for one frame
bool ActiveIdAllowOverlap; // Active widget allows another widget to steal active id (generally for overlapping widgets, but not always)
bool ActiveIdNoClearOnFocusLoss; // Disable losing active id if the active id window gets unfocused.
bool ActiveIdHasBeenPressedBefore; // Track whether the active id led to a press (this is to allow changing between PressOnClick and PressOnRelease without pressing twice). Used by range_select branch.
bool ActiveIdHasBeenEditedBefore; // Was the value associated to the widget Edited over the course of the Active state.
bool ActiveIdHasBeenEditedThisFrame;
ImVec2 ActiveIdClickOffset; // Clicked offset from upper-left corner, if applicable (currently only set by ButtonBehavior)
ImGuiWindow* ActiveIdWindow;
ImGuiInputSource ActiveIdSource; // Activating source: ImGuiInputSource_Mouse OR ImGuiInputSource_Keyboard OR ImGuiInputSource_Gamepad
int ActiveIdMouseButton;
ImGuiID ActiveIdPreviousFrame;
bool ActiveIdPreviousFrameIsAlive;
bool ActiveIdPreviousFrameHasBeenEditedBefore;
ImGuiWindow* ActiveIdPreviousFrameWindow;
ImGuiID LastActiveId; // Store the last non-zero ActiveId, useful for animation.
float LastActiveIdTimer; // Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.
// [EXPERIMENTAL] Key/Input Ownership + Shortcut Routing system
// - The idea is that instead of "eating" a given key, we can link to an owner.
// - Input query can then read input by specifying ImGuiKeyOwner_Any (== 0), ImGuiKeyOwner_None (== -1) or a custom ID.
// - Routing is requested ahead of time for a given chord (Key + Mods) and granted in NewFrame().
ImGuiKeyOwnerData KeysOwnerData[ImGuiKey_NamedKey_COUNT];
ImGuiKeyRoutingTable KeysRoutingTable;
ImU32 ActiveIdUsingNavDirMask; // Active widget will want to read those nav move requests (e.g. can activate a button and move away from it)
bool ActiveIdUsingAllKeyboardKeys; // Active widget will want to read all keyboard keys inputs. (FIXME: This is a shortcut for not taking ownership of 100+ keys but perhaps best to not have the inconsistency)
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
ImU32 ActiveIdUsingNavInputMask; // If you used this. Since (IMGUI_VERSION_NUM >= 18804) : 'g.ActiveIdUsingNavInputMask |= (1 << ImGuiNavInput_Cancel);' becomes 'SetKeyOwner(ImGuiKey_Escape, g.ActiveId) and/or SetKeyOwner(ImGuiKey_NavGamepadCancel, g.ActiveId);'
#endif
// Next window/item data
ImGuiID CurrentFocusScopeId; // == g.FocusScopeStack.back()
ImGuiItemFlags CurrentItemFlags; // == g.ItemFlagsStack.back()
ImGuiID DebugLocateId; // Storage for DebugLocateItemOnHover() feature: this is read by ItemAdd() so we keep it in a hot/cached location
ImGuiNextItemData NextItemData; // Storage for SetNextItem** functions
ImGuiLastItemData LastItemData; // Storage for last submitted item (setup by ItemAdd)
ImGuiNextWindowData NextWindowData; // Storage for SetNextWindow** functions
// Shared stacks
ImVector<ImGuiColorMod> ColorStack; // Stack for PushStyleColor()/PopStyleColor() - inherited by Begin()
ImVector<ImGuiStyleMod> StyleVarStack; // Stack for PushStyleVar()/PopStyleVar() - inherited by Begin()
ImVector<ImFont*> FontStack; // Stack for PushFont()/PopFont() - inherited by Begin()
ImVector<ImGuiID> FocusScopeStack; // Stack for PushFocusScope()/PopFocusScope() - inherited by BeginChild(), pushed into by Begin()
ImVector<ImGuiItemFlags>ItemFlagsStack; // Stack for PushItemFlag()/PopItemFlag() - inherited by Begin()
ImVector<ImGuiGroupData>GroupStack; // Stack for BeginGroup()/EndGroup() - not inherited by Begin()
ImVector<ImGuiPopupData>OpenPopupStack; // Which popups are open (persistent)
ImVector<ImGuiPopupData>BeginPopupStack; // Which level of BeginPopup() we are in (reset every frame)
int BeginMenuCount;
// Viewports
ImVector<ImGuiViewportP*> Viewports; // Active viewports (Size==1 in 'master' branch). Each viewports hold their copy of ImDrawData.
// Gamepad/keyboard Navigation
ImGuiWindow* NavWindow; // Focused window for navigation. Could be called 'FocusedWindow'
ImGuiID NavId; // Focused item for navigation
ImGuiID NavFocusScopeId; // Identify a selection scope (selection code often wants to "clear other items" when landing on an item of the selection set)
ImGuiID NavActivateId; // ~~ (g.ActiveId == 0) && (IsKeyPressed(ImGuiKey_Space) || IsKeyDown(ImGuiKey_Enter) || IsKeyPressed(ImGuiKey_NavGamepadActivate)) ? NavId : 0, also set when calling ActivateItem()
ImGuiID NavActivateDownId; // ~~ IsKeyDown(ImGuiKey_Space) || IsKeyDown(ImGuiKey_Enter) || IsKeyDown(ImGuiKey_NavGamepadActivate) ? NavId : 0
ImGuiID NavActivatePressedId; // ~~ IsKeyPressed(ImGuiKey_Space) || IsKeyPressed(ImGuiKey_Enter) || IsKeyPressed(ImGuiKey_NavGamepadActivate) ? NavId : 0 (no repeat)
ImGuiActivateFlags NavActivateFlags;
ImGuiID NavJustMovedToId; // Just navigated to this id (result of a successfully MoveRequest).
ImGuiID NavJustMovedToFocusScopeId; // Just navigated to this focus scope id (result of a successfully MoveRequest).
ImGuiKeyChord NavJustMovedToKeyMods;
ImGuiID NavNextActivateId; // Set by ActivateItem(), queued until next frame.
ImGuiActivateFlags NavNextActivateFlags;
ImGuiInputSource NavInputSource; // Keyboard or Gamepad mode? THIS CAN ONLY BE ImGuiInputSource_Keyboard or ImGuiInputSource_Mouse
ImGuiNavLayer NavLayer; // Layer we are navigating on. For now the system is hard-coded for 0=main contents and 1=menu/title bar, may expose layers later.
bool NavIdIsAlive; // Nav widget has been seen this frame ~~ NavRectRel is valid
bool NavMousePosDirty; // When set we will update mouse position if (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) if set (NB: this not enabled by default)
bool NavDisableHighlight; // When user starts using mouse, we hide gamepad/keyboard highlight (NB: but they are still available, which is why NavDisableHighlight isn't always != NavDisableMouseHover)
bool NavDisableMouseHover; // When user starts using gamepad/keyboard, we hide mouse hovering highlight until mouse is touched again.
// Navigation: Init & Move Requests
bool NavAnyRequest; // ~~ NavMoveRequest || NavInitRequest this is to perform early out in ItemAdd()
bool NavInitRequest; // Init request for appearing window to select first item
bool NavInitRequestFromMove;
ImGuiNavItemData NavInitResult; // Init request result (first item of the window, or one for which SetItemDefaultFocus() was called)
bool NavMoveSubmitted; // Move request submitted, will process result on next NewFrame()
bool NavMoveScoringItems; // Move request submitted, still scoring incoming items
bool NavMoveForwardToNextFrame;
ImGuiNavMoveFlags NavMoveFlags;
ImGuiScrollFlags NavMoveScrollFlags;
ImGuiKeyChord NavMoveKeyMods;
ImGuiDir NavMoveDir; // Direction of the move request (left/right/up/down)
ImGuiDir NavMoveDirForDebug;
ImGuiDir NavMoveClipDir; // FIXME-NAV: Describe the purpose of this better. Might want to rename?
ImRect NavScoringRect; // Rectangle used for scoring, in screen space. Based of window->NavRectRel[], modified for directional navigation scoring.
ImRect NavScoringNoClipRect; // Some nav operations (such as PageUp/PageDown) enforce a region which clipper will attempt to always keep submitted
int NavScoringDebugCount; // Metrics for debugging
int NavTabbingDir; // Generally -1 or +1, 0 when tabbing without a nav id
int NavTabbingCounter; // >0 when counting items for tabbing
ImGuiNavItemData NavMoveResultLocal; // Best move request candidate within NavWindow
ImGuiNavItemData NavMoveResultLocalVisible; // Best move request candidate within NavWindow that are mostly visible (when using ImGuiNavMoveFlags_AlsoScoreVisibleSet flag)
ImGuiNavItemData NavMoveResultOther; // Best move request candidate within NavWindow's flattened hierarchy (when using ImGuiWindowFlags_NavFlattened flag)
ImGuiNavItemData NavTabbingResultFirst; // First tabbing request candidate within NavWindow and flattened hierarchy
// Navigation: Windowing (CTRL+TAB for list, or Menu button + keys or directional pads to move/resize)
ImGuiKeyChord ConfigNavWindowingKeyNext; // = ImGuiMod_Ctrl | ImGuiKey_Tab, for reconfiguration (see #4828)
ImGuiKeyChord ConfigNavWindowingKeyPrev; // = ImGuiMod_Ctrl | ImGuiMod_Shift | ImGuiKey_Tab
ImGuiWindow* NavWindowingTarget; // Target window when doing CTRL+Tab (or Pad Menu + FocusPrev/Next), this window is temporarily displayed top-most!
ImGuiWindow* NavWindowingTargetAnim; // Record of last valid NavWindowingTarget until DimBgRatio and NavWindowingHighlightAlpha becomes 0.0f, so the fade-out can stay on it.
ImGuiWindow* NavWindowingListWindow; // Internal window actually listing the CTRL+Tab contents
float NavWindowingTimer;
float NavWindowingHighlightAlpha;
bool NavWindowingToggleLayer;
ImVec2 NavWindowingAccumDeltaPos;
ImVec2 NavWindowingAccumDeltaSize;
// Render
float DimBgRatio; // 0.0..1.0 animation when fading in a dimming background (for modal window and CTRL+TAB list)
ImGuiMouseCursor MouseCursor;
// Drag and Drop
bool DragDropActive;
bool DragDropWithinSource; // Set when within a BeginDragDropXXX/EndDragDropXXX block for a drag source.
bool DragDropWithinTarget; // Set when within a BeginDragDropXXX/EndDragDropXXX block for a drag target.
ImGuiDragDropFlags DragDropSourceFlags;
int DragDropSourceFrameCount;
int DragDropMouseButton;
ImGuiPayload DragDropPayload;
ImRect DragDropTargetRect; // Store rectangle of current target candidate (we favor small targets when overlapping)
ImGuiID DragDropTargetId;
ImGuiDragDropFlags DragDropAcceptFlags;
float DragDropAcceptIdCurrRectSurface; // Target item surface (we resolve overlapping targets by prioritizing the smaller surface)
ImGuiID DragDropAcceptIdCurr; // Target item id (set at the time of accepting the payload)
ImGuiID DragDropAcceptIdPrev; // Target item id from previous frame (we need to store this to allow for overlapping drag and drop targets)
int DragDropAcceptFrameCount; // Last time a target expressed a desire to accept the source
ImGuiID DragDropHoldJustPressedId; // Set when holding a payload just made ButtonBehavior() return a press.
ImVector<unsigned char> DragDropPayloadBufHeap; // We don't expose the ImVector<> directly, ImGuiPayload only holds pointer+size
unsigned char DragDropPayloadBufLocal[16]; // Local buffer for small payloads
// Clipper
int ClipperTempDataStacked;
ImVector<ImGuiListClipperData> ClipperTempData;
// Tables
ImGuiTable* CurrentTable;
int TablesTempDataStacked; // Temporary table data size (because we leave previous instances undestructed, we generally don't use TablesTempData.Size)
ImVector<ImGuiTableTempData> TablesTempData; // Temporary table data (buffers reused/shared across instances, support nesting)
ImPool<ImGuiTable> Tables; // Persistent table data
ImVector<float> TablesLastTimeActive; // Last used timestamp of each tables (SOA, for efficient GC)
ImVector<ImDrawChannel> DrawChannelsTempMergeBuffer;
// Tab bars
ImGuiTabBar* CurrentTabBar;
ImPool<ImGuiTabBar> TabBars;
ImVector<ImGuiPtrOrIndex> CurrentTabBarStack;
ImVector<ImGuiShrinkWidthItem> ShrinkWidthBuffer;
// Hover Delay system
ImGuiID HoverDelayId;
ImGuiID HoverDelayIdPreviousFrame;
float HoverDelayTimer; // Currently used IsItemHovered(), generally inferred from g.HoveredIdTimer but kept uncleared until clear timer elapse.
float HoverDelayClearTimer; // Currently used IsItemHovered(): grace time before g.TooltipHoverTimer gets cleared.
// Widget state
ImVec2 MouseLastValidPos;
ImGuiInputTextState InputTextState;
ImGuiInputTextDeactivatedState InputTextDeactivatedState;
ImFont InputTextPasswordFont;
ImGuiID TempInputId; // Temporary text input when CTRL+clicking on a slider, etc.
ImGuiColorEditFlags ColorEditOptions; // Store user options for color edit widgets
ImGuiID ColorEditCurrentID; // Set temporarily while inside of the parent-most ColorEdit4/ColorPicker4 (because they call each others).
ImGuiID ColorEditSavedID; // ID we are saving/restoring HS for
float ColorEditSavedHue; // Backup of last Hue associated to LastColor, so we can restore Hue in lossy RGB<>HSV round trips
float ColorEditSavedSat; // Backup of last Saturation associated to LastColor, so we can restore Saturation in lossy RGB<>HSV round trips
ImU32 ColorEditSavedColor; // RGB value with alpha set to 0.
ImVec4 ColorPickerRef; // Initial/reference color at the time of opening the color picker.
ImGuiComboPreviewData ComboPreviewData;
float SliderGrabClickOffset;
float SliderCurrentAccum; // Accumulated slider delta when using navigation controls.
bool SliderCurrentAccumDirty; // Has the accumulated slider delta changed since last time we tried to apply it?
bool DragCurrentAccumDirty;
float DragCurrentAccum; // Accumulator for dragging modification. Always high-precision, not rounded by end-user precision settings
float DragSpeedDefaultRatio; // If speed == 0.0f, uses (max-min) * DragSpeedDefaultRatio
float ScrollbarClickDeltaToGrabCenter; // Distance between mouse and center of grab box, normalized in parent space. Use storage?
float DisabledAlphaBackup; // Backup for style.Alpha for BeginDisabled()
short DisabledStackSize;
short TooltipOverrideCount;
ImVector<char> ClipboardHandlerData; // If no custom clipboard handler is defined
ImVector<ImGuiID> MenusIdSubmittedThisFrame; // A list of menu IDs that were rendered at least once
// Platform support
ImGuiPlatformImeData PlatformImeData; // Data updated by current frame
ImGuiPlatformImeData PlatformImeDataPrev; // Previous frame data (when changing we will call io.SetPlatformImeDataFn
char PlatformLocaleDecimalPoint; // '.' or *localeconv()->decimal_point
// Settings
bool SettingsLoaded;
float SettingsDirtyTimer; // Save .ini Settings to memory when time reaches zero
ImGuiTextBuffer SettingsIniData; // In memory .ini settings
ImVector<ImGuiSettingsHandler> SettingsHandlers; // List of .ini settings handlers
ImChunkStream<ImGuiWindowSettings> SettingsWindows; // ImGuiWindow .ini settings entries
ImChunkStream<ImGuiTableSettings> SettingsTables; // ImGuiTable .ini settings entries
ImVector<ImGuiContextHook> Hooks; // Hooks for extensions (e.g. test engine)
ImGuiID HookIdNext; // Next available HookId
// Localization
const char* LocalizationTable[ImGuiLocKey_COUNT];
// Capture/Logging
bool LogEnabled; // Currently capturing
ImGuiLogType LogType; // Capture target
ImFileHandle LogFile; // If != NULL log to stdout/ file
ImGuiTextBuffer LogBuffer; // Accumulation buffer when log to clipboard. This is pointer so our GImGui static constructor doesn't call heap allocators.
const char* LogNextPrefix;
const char* LogNextSuffix;
float LogLinePosY;
bool LogLineFirstItem;
int LogDepthRef;
int LogDepthToExpand;
int LogDepthToExpandDefault; // Default/stored value for LogDepthMaxExpand if not specified in the LogXXX function call.
// Debug Tools
ImGuiDebugLogFlags DebugLogFlags;
ImGuiTextBuffer DebugLogBuf;
ImGuiTextIndex DebugLogIndex;
ImU8 DebugLogClipperAutoDisableFrames;
ImU8 DebugLocateFrames; // For DebugLocateItemOnHover(). This is used together with DebugLocateId which is in a hot/cached spot above.
ImS8 DebugBeginReturnValueCullDepth; // Cycle between 0..9 then wrap around.
bool DebugItemPickerActive; // Item picker is active (started with DebugStartItemPicker())
ImU8 DebugItemPickerMouseButton;
ImGuiID DebugItemPickerBreakId; // Will call IM_DEBUG_BREAK() when encountering this ID
ImGuiMetricsConfig DebugMetricsConfig;
ImGuiStackTool DebugStackTool;
// Misc
float FramerateSecPerFrame[60]; // Calculate estimate of framerate for user over the last 60 frames..
int FramerateSecPerFrameIdx;
int FramerateSecPerFrameCount;
float FramerateSecPerFrameAccum;
int WantCaptureMouseNextFrame; // Explicit capture override via SetNextFrameWantCaptureMouse()/SetNextFrameWantCaptureKeyboard(). Default to -1.
int WantCaptureKeyboardNextFrame; // "
int WantTextInputNextFrame;
ImVector<char> TempBuffer; // Temporary text buffer
ImGuiContext(ImFontAtlas* shared_font_atlas)
{
IO.Ctx = this;
InputTextState.Ctx = this;
Initialized = false;
FontAtlasOwnedByContext = shared_font_atlas ? false : true;
Font = NULL;
FontSize = FontBaseSize = 0.0f;
IO.Fonts = shared_font_atlas ? shared_font_atlas : IM_NEW(ImFontAtlas)();
Time = 0.0f;
FrameCount = 0;
FrameCountEnded = FrameCountRendered = -1;
WithinFrameScope = WithinFrameScopeWithImplicitWindow = WithinEndChild = false;
GcCompactAll = false;
TestEngineHookItems = false;
TestEngine = NULL;
InputEventsNextMouseSource = ImGuiMouseSource_Mouse;
InputEventsNextEventId = 1;
WindowsActiveCount = 0;
CurrentWindow = NULL;
HoveredWindow = NULL;
HoveredWindowUnderMovingWindow = NULL;
MovingWindow = NULL;
WheelingWindow = NULL;
WheelingWindowStartFrame = -1;
WheelingWindowReleaseTimer = 0.0f