// dear imgui, v1.54 WIP // (internals) // You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility! // Set: // #define IMGUI_DEFINE_MATH_OPERATORS // To implement maths operators for ImVec2 (disabled by default to not collide with using IM_VEC2_CLASS_EXTRA along with your own math types+operators) #pragma once #ifndef IMGUI_VERSION #error Must include imgui.h before imgui_internal.h #endif #include // FILE* #include // sqrtf, fabsf, fmodf, powf, floorf, ceilf, cosf, sinf #include // INT_MIN, INT_MAX #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) #endif #ifdef __clang__ #pragma clang diagnostic push #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" #endif //----------------------------------------------------------------------------- // Forward Declarations //----------------------------------------------------------------------------- struct ImRect; struct ImGuiColMod; struct ImGuiStyleMod; struct ImGuiGroupData; struct ImGuiMenuColumns; struct ImGuiDrawContext; struct ImGuiTextEditState; struct ImGuiMouseCursorData; struct ImGuiPopupRef; struct ImGuiWindow; struct ImGuiWindowSettings; typedef int ImGuiLayoutType; // enum: horizontal or vertical // enum ImGuiLayoutType_ typedef int ImGuiButtonFlags; // flags: for ButtonEx(), ButtonBehavior() // enum ImGuiButtonFlags_ typedef int ImGuiItemFlags; // flags: for PushItemFlag() // enum ImGuiItemFlags_ typedef int ImGuiNavHighlightFlags; // flags: for RenderNavHighlight() // enum ImGuiNavHighlightFlags_ typedef int ImGuiSeparatorFlags; // flags: for Separator() - internal // enum ImGuiSeparatorFlags_ typedef int ImGuiSliderFlags; // flags: for SliderBehavior() // enum ImGuiSliderFlags_ //------------------------------------------------------------------------- // STB libraries //------------------------------------------------------------------------- namespace ImGuiStb { #undef STB_TEXTEDIT_STRING #undef STB_TEXTEDIT_CHARTYPE #define STB_TEXTEDIT_STRING ImGuiTextEditState #define STB_TEXTEDIT_CHARTYPE ImWchar #define STB_TEXTEDIT_GETWIDTH_NEWLINE -1.0f #include "stb_textedit.h" } // namespace ImGuiStb //----------------------------------------------------------------------------- // Context //----------------------------------------------------------------------------- #ifndef GImGui extern IMGUI_API ImGuiContext* GImGui; // Current implicit ImGui context pointer #endif //----------------------------------------------------------------------------- // Helpers //----------------------------------------------------------------------------- #define IM_PI 3.14159265358979323846f // Helpers: UTF-8 <> wchar IMGUI_API int ImTextStrToUtf8(char* buf, int 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); // return input UTF-8 bytes count IMGUI_API int ImTextStrFromUtf8(ImWchar* buf, int 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 ImTextCountUtf8BytesFromStr(const ImWchar* in_text, const ImWchar* in_text_end); // return number of bytes to express string as UTF-8 code-points // Helpers: Misc IMGUI_API ImU32 ImHash(const void* data, int data_size, ImU32 seed = 0); // Pass data_size==0 for zero-terminated strings IMGUI_API void* ImFileLoadToMemory(const char* filename, const char* file_open_mode, int* out_file_size = NULL, int padding_bytes = 0); IMGUI_API FILE* ImFileOpen(const char* filename, const char* file_open_mode); static inline bool ImCharIsSpace(int c) { return c == ' ' || c == '\t' || c == 0x3000; } static inline bool ImIsPowerOfTwo(int 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: Geometry 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); // 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* ImStrchrRange(const char* str_begin, const char* str_end, char c); IMGUI_API int ImStrlenW(const ImWchar* str); 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 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); // Helpers: Math // We are keeping those not leaking to the user by default, in the case the user has implicit cast operators between ImVec2 and its own types (when IM_VEC2_CLASS_EXTRA is defined) #ifdef IMGUI_DEFINE_MATH_OPERATORS static inline ImVec2 operator*(const ImVec2& lhs, const float rhs) { return ImVec2(lhs.x*rhs, lhs.y*rhs); } static inline ImVec2 operator/(const ImVec2& lhs, const float rhs) { return ImVec2(lhs.x/rhs, lhs.y/rhs); } static inline ImVec2 operator+(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x+rhs.x, lhs.y+rhs.y); } static inline ImVec2 operator-(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x-rhs.x, lhs.y-rhs.y); } static inline ImVec2 operator*(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x*rhs.x, lhs.y*rhs.y); } static inline ImVec2 operator/(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(lhs.x/rhs.x, lhs.y/rhs.y); } static inline ImVec2& operator+=(ImVec2& lhs, const ImVec2& rhs) { lhs.x += rhs.x; lhs.y += rhs.y; return lhs; } static inline ImVec2& operator-=(ImVec2& lhs, const ImVec2& rhs) { lhs.x -= rhs.x; lhs.y -= rhs.y; return lhs; } static inline ImVec2& operator*=(ImVec2& lhs, const float rhs) { lhs.x *= rhs; lhs.y *= rhs; return lhs; } static inline ImVec2& operator/=(ImVec2& lhs, const float rhs) { lhs.x /= rhs; lhs.y /= rhs; return lhs; } static inline ImVec4 operator+(const ImVec4& lhs, const ImVec4& rhs) { return ImVec4(lhs.x+rhs.x, lhs.y+rhs.y, lhs.z+rhs.z, lhs.w+rhs.w); } static inline ImVec4 operator-(const ImVec4& lhs, const ImVec4& rhs) { return ImVec4(lhs.x-rhs.x, lhs.y-rhs.y, lhs.z-rhs.z, lhs.w-rhs.w); } static inline ImVec4 operator*(const ImVec4& lhs, const ImVec4& rhs) { return ImVec4(lhs.x*rhs.x, lhs.y*rhs.y, lhs.z*rhs.z, lhs.w*rhs.w); } #endif static inline int ImMin(int lhs, int rhs) { return lhs < rhs ? lhs : rhs; } static inline int ImMax(int lhs, int rhs) { return lhs >= rhs ? lhs : rhs; } static inline float ImMin(float lhs, float rhs) { return lhs < rhs ? lhs : rhs; } static inline float ImMax(float lhs, float rhs) { return lhs >= rhs ? lhs : rhs; } static inline ImVec2 ImMin(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(ImMin(lhs.x,rhs.x), ImMin(lhs.y,rhs.y)); } static inline ImVec2 ImMax(const ImVec2& lhs, const ImVec2& rhs) { return ImVec2(ImMax(lhs.x,rhs.x), ImMax(lhs.y,rhs.y)); } static inline int ImClamp(int v, int mn, int mx) { return (v < mn) ? mn : (v > mx) ? mx : v; } static inline float ImClamp(float v, float mn, float mx) { return (v < mn) ? mn : (v > mx) ? mx : v; } static inline ImVec2 ImClamp(const ImVec2& f, const ImVec2& mn, ImVec2 mx) { return ImVec2(ImClamp(f.x,mn.x,mx.x), ImClamp(f.y,mn.y,mx.y)); } static inline float ImSaturate(float f) { return (f < 0.0f) ? 0.0f : (f > 1.0f) ? 1.0f : f; } static inline void ImSwap(int& a, int& b) { int tmp = a; a = b; b = tmp; } static inline void ImSwap(float& a, float& b) { float tmp = a; a = b; b = tmp; } static inline int ImLerp(int a, int b, float t) { return (int)(a + (b - a) * t); } static inline float ImLerp(float a, float b, float t) { return a + (b - a) * t; } 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 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 1.0f / sqrtf(d); return fail_value; } static inline float ImFloor(float f) { return (float)(int)f; } static inline ImVec2 ImFloor(const ImVec2& v) { return ImVec2((float)(int)v.x, (float)(int)v.y); } 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); } // We call C++ constructor on own allocated memory via the placement "new(ptr) Type()" syntax. // Defining a custom placement new() with a dummy parameter allows us to bypass including which on some platforms complains when user has disabled exceptions. struct ImNewPlacementDummy {}; inline void* operator new(size_t, ImNewPlacementDummy, void* ptr) { return ptr; } inline void operator delete(void*, ImNewPlacementDummy, void*) {} // This is only required so we can use the symetrical new() #define IM_PLACEMENT_NEW(_PTR) new(ImNewPlacementDummy(), _PTR) #define IM_NEW(_TYPE) new(ImNewPlacementDummy(), ImGui::MemAlloc(sizeof(_TYPE))) _TYPE template void IM_DELETE(T*& p) { if (p) { p->~T(); ImGui::MemFree(p); p = NULL; } } //----------------------------------------------------------------------------- // Types //----------------------------------------------------------------------------- // Internal Drag and Drop payload types. String starting with '_' are reserved for Dear ImGui. #define IMGUI_PAYLOAD_TYPE_DOCKABLE "_IMDOCK" // ImGuiWindow* // [Internal] Docking/tabs enum ImGuiButtonFlags_ { ImGuiButtonFlags_Repeat = 1 << 0, // hold to repeat ImGuiButtonFlags_PressedOnClickRelease = 1 << 1, // return true on click + release on same item [DEFAULT if no PressedOn* flag is set] ImGuiButtonFlags_PressedOnClick = 1 << 2, // return true on click (default requires click+release) ImGuiButtonFlags_PressedOnRelease = 1 << 3, // return true on release (default requires click+release) ImGuiButtonFlags_PressedOnDoubleClick = 1 << 4, // return true on double-click (default requires click+release) ImGuiButtonFlags_FlattenChildren = 1 << 5, // allow interactions even if a child window is overlapping ImGuiButtonFlags_AllowItemOverlap = 1 << 6, // require previous frame HoveredId to either match id or be null before being usable, use along with SetItemAllowOverlap() ImGuiButtonFlags_DontClosePopups = 1 << 7, // disable automatically closing parent popup on press // [UNUSED] ImGuiButtonFlags_Disabled = 1 << 8, // disable interactions ImGuiButtonFlags_AlignTextBaseLine = 1 << 9, // 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 << 10, // disable interaction if a key modifier is held ImGuiButtonFlags_NoHoldingActiveID = 1 << 11, // don't set ActiveId while holding the mouse (ImGuiButtonFlags_PressedOnClick only) ImGuiButtonFlags_PressedOnDragDropHold = 1 << 12, // press when held into while we are drag and dropping another item (used by e.g. tree nodes, collapsing headers) ImGuiButtonFlags_NoNavFocus = 1 << 13 // don't override navigation focus when activated }; enum ImGuiSliderFlags_ { ImGuiSliderFlags_Vertical = 1 << 0 }; enum ImGuiColumnsFlags_ { // Default: 0 ImGuiColumnsFlags_NoBorder = 1 << 0, // Disable column dividers ImGuiColumnsFlags_NoResize = 1 << 1, // Disable resizing columns when clicking on the dividers ImGuiColumnsFlags_NoPreserveWidths = 1 << 2, // Disable column width preservation when adjusting columns ImGuiColumnsFlags_NoForceWithinWindow = 1 << 3, // Disable forcing columns to fit within window ImGuiColumnsFlags_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. }; enum ImGuiSelectableFlagsPrivate_ { // NB: need to be in sync with last value of ImGuiSelectableFlags_ ImGuiSelectableFlags_Menu = 1 << 3, // -> PressedOnClick ImGuiSelectableFlags_MenuItem = 1 << 4, // -> PressedOnRelease ImGuiSelectableFlags_Disabled = 1 << 5, ImGuiSelectableFlags_DrawFillAvailWidth = 1 << 6 }; enum ImGuiSeparatorFlags_ { ImGuiSeparatorFlags_Horizontal = 1 << 0, // Axis default to current layout type, so generally Horizontal unless e.g. in a menu bar ImGuiSeparatorFlags_Vertical = 1 << 1 }; // FIXME: this is in development, not exposed/functional as a generic feature yet. enum ImGuiLayoutType_ { ImGuiLayoutType_Vertical, ImGuiLayoutType_Horizontal }; enum ImGuiAxis { ImGuiAxis_None = -1, ImGuiAxis_X = 0, ImGuiAxis_Y = 1 }; enum ImGuiPlotType { ImGuiPlotType_Lines, ImGuiPlotType_Histogram }; enum ImGuiDataType { ImGuiDataType_Int, ImGuiDataType_Float, ImGuiDataType_Float2 }; enum ImGuiInputSource { ImGuiInputSource_None = 0, ImGuiInputSource_Mouse, ImGuiInputSource_Nav, ImGuiInputSource_Count_, }; enum ImGuiDir { ImGuiDir_None = -1, ImGuiDir_Left = 0, ImGuiDir_Right = 1, ImGuiDir_Up = 2, ImGuiDir_Down = 3, ImGuiDir_Count_ }; enum ImGuiNavHighlightFlags_ { ImGuiNavHighlightFlags_TypeDefault = 1 << 0, ImGuiNavHighlightFlags_TypeThin = 1 << 1, ImGuiNavHighlightFlags_AlwaysDraw = 1 << 2 }; // 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 ImRect() : Min(FLT_MAX,FLT_MAX), Max(-FLT_MAX,-FLT_MAX) {} ImRect(const ImVec2& min, const ImVec2& max) : Min(min), Max(max) {} ImRect(const ImVec4& v) : Min(v.x, v.y), Max(v.z, v.w) {} 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; } 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& v) { Min.x += v.x; Min.y += v.y; Max.x += v.x; Max.y += v.y; } void ClipWith(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 Floor() { Min.x = (float)(int)Min.x; Min.y = (float)(int)Min.y; Max.x = (float)(int)Max.x; Max.y = (float)(int)Max.y; } void FixInverted() { if (Min.x > Max.x) ImSwap(Min.x, Max.x); if (Min.y > Max.y) ImSwap(Min.y, Max.y); } bool IsFinite() const { return Min.x != FLT_MAX; } }; // Stacked color modifier, backup of modified data so we can restore it struct ImGuiColMod { 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; } }; // Stacked data for BeginGroup()/EndGroup() struct ImGuiGroupData { ImVec2 BackupCursorPos; ImVec2 BackupCursorMaxPos; float BackupIndentX; float BackupGroupOffsetX; float BackupCurrentLineHeight; float BackupCurrentLineTextBaseOffset; float BackupLogLinePosY; bool BackupActiveIdIsAlive; bool AdvanceCursor; }; // 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 { int Count; float Spacing; float Width, NextWidth; float Pos[4], NextWidths[4]; ImGuiMenuColumns(); void Update(int count, float spacing, bool clear); float DeclColumns(float w0, float w1, float w2); float CalcExtraSpace(float avail_w); }; // Internal state of the currently focused/edited text input box struct IMGUI_API ImGuiTextEditState { ImGuiID Id; // widget id owning the text state ImVector Text; // edit buffer, we need to persist but can't guarantee the persistence of the user-provided buffer. so we copy into own buffer. ImVector InitialText; // backup of end-user buffer at the time of focus (in UTF-8, unaltered) ImVector TempTextBuffer; int CurLenA, CurLenW; // we need to maintain our buffer length in both UTF-8 and wchar format. int BufSizeA; // end-user buffer size float ScrollX; ImGuiStb::STB_TexteditState StbState; float CursorAnim; bool CursorFollow; bool SelectedAllMouseLock; ImGuiTextEditState() { memset(this, 0, sizeof(*this)); } void CursorAnimReset() { CursorAnim = -0.30f; } // After a user-input the cursor stays on for a while without blinking void CursorClamp() { StbState.cursor = ImMin(StbState.cursor, CurLenW); StbState.select_start = ImMin(StbState.select_start, CurLenW); StbState.select_end = ImMin(StbState.select_end, CurLenW); } bool HasSelection() const { return StbState.select_start != StbState.select_end; } void ClearSelection() { StbState.select_start = StbState.select_end = StbState.cursor; } void SelectAll() { StbState.select_start = 0; StbState.select_end = CurLenW; StbState.cursor = StbState.select_end; StbState.has_preferred_x = false; } void OnKeyPressed(int key); }; // Data saved in imgui.ini file struct ImGuiWindowSettings { char* Name; ImGuiID Id; ImVec2 Pos; ImVec2 Size; bool Collapsed; ImGuiWindowSettings() { Name = NULL; Id = 0; Pos = Size = ImVec2(0,0); Collapsed = false; } }; struct ImGuiSettingsHandler { const char* TypeName; // Short description stored in .ini file. Disallowed characters: '[' ']' ImGuiID TypeHash; // == ImHash(TypeName, 0, 0) void* (*ReadOpenFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, const char* name); void (*ReadLineFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, void* entry, const char* line); void (*WriteAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* out_buf); void* UserData; ImGuiSettingsHandler() { memset(this, 0, sizeof(*this)); } }; // Mouse cursor data (used when io.MouseDrawCursor is set) struct ImGuiMouseCursorData { ImGuiMouseCursor Type; ImVec2 HotOffset; ImVec2 Size; ImVec2 TexUvMin[2]; ImVec2 TexUvMax[2]; }; // Storage for current popup stack struct ImGuiPopupRef { ImGuiID PopupId; // Set on OpenPopup() ImGuiWindow* Window; // Resolved on BeginPopup() - may stay unresolved if user never calls OpenPopup() ImGuiWindow* ParentWindow; // Set on OpenPopup() int OpenFrameCount; // Set on OpenPopup() ImGuiID OpenParentId; // Set on OpenPopup(), we need this to differenciate 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 }; struct ImGuiColumnData { float OffsetNorm; // Column start offset, normalized 0.0 (far left) -> 1.0 (far right) float OffsetNormBeforeResize; ImGuiColumnsFlags Flags; // Not exposed ImRect ClipRect; ImGuiColumnData() { OffsetNorm = OffsetNormBeforeResize = 0.0f; Flags = 0; } }; struct ImGuiColumnsSet { ImGuiID ID; ImGuiColumnsFlags Flags; bool IsFirstFrame; bool IsBeingResized; int Current; int Count; float MinX, MaxX; float StartPosY; float StartMaxPosX; // Backup of CursorMaxPos float CellMinY, CellMaxY; ImVector Columns; ImGuiColumnsSet() { Clear(); } void Clear() { ID = 0; Flags = 0; IsFirstFrame = false; IsBeingResized = false; Current = 0; Count = 1; MinX = MaxX = 0.0f; StartPosY = 0.0f; StartMaxPosX = 0.0f; CellMinY = CellMaxY = 0.0f; Columns.clear(); } }; struct 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; ImVec4 ClipRectFullscreen; // Value for PushClipRectFullscreen() // Const data // FIXME: Bake rounded corners fill/borders in atlas ImVec2 CircleVtx12[12]; ImDrawListSharedData(); }; // Storage for SetNexWindow** functions struct ImGuiNextWindowData { ImGuiCond PosCond; ImGuiCond SizeCond; ImGuiCond ContentSizeCond; ImGuiCond CollapsedCond; ImGuiCond SizeConstraintCond; ImGuiCond FocusCond; ImVec2 PosVal; ImVec2 PosPivotVal; ImVec2 SizeVal; ImVec2 ContentSizeVal; bool CollapsedVal; ImRect SizeConstraintRect; // Valid if 'SetNextWindowSizeConstraint' is true ImGuiSizeCallback SizeCallback; void* SizeCallbackUserData; ImGuiNextWindowData() { PosCond = SizeCond = ContentSizeCond = CollapsedCond = SizeConstraintCond = FocusCond = 0; PosVal = PosPivotVal = SizeVal = ImVec2(0.0f, 0.0f); ContentSizeVal = ImVec2(0.0f, 0.0f); CollapsedVal = false; SizeConstraintRect = ImRect(); SizeCallback = NULL; SizeCallbackUserData = NULL; } void Clear() { PosCond = SizeCond = ContentSizeCond = CollapsedCond = SizeConstraintCond = FocusCond = 0; } }; // Main state for ImGui struct ImGuiContext { bool Initialized; 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; float Time; int FrameCount; int FrameCountEnded; int FrameCountRendered; ImVector Windows; ImVector WindowsSortBuffer; ImVector CurrentWindowStack; ImGuiStorage WindowsById; int WindowsActiveCount; ImGuiWindow* CurrentWindow; // Being drawn into ImGuiWindow* HoveredWindow; // Will catch mouse inputs ImGuiWindow* HoveredRootWindow; // Will catch mouse inputs (for focus/move only) ImGuiID HoveredId; // Hovered widget bool HoveredIdAllowOverlap; ImGuiID HoveredIdPreviousFrame; float HoveredIdTimer; ImGuiID ActiveId; // Active widget ImGuiID ActiveIdPreviousFrame; float ActiveIdTimer; bool ActiveIdIsAlive; // Active widget has been seen this frame 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) int ActiveIdAllowNavDirFlags; // Active widget allows using directional navigation (e.g. can activate a button and move away from it) ImVec2 ActiveIdClickOffset; // Clicked offset from upper-left corner, if applicable (currently only set by ButtonBehavior) ImGuiWindow* ActiveIdWindow; ImGuiInputSource ActiveIdSource; // Activating with mouse or nav (gamepad/keyboard) ImGuiWindow* MovingWindow; // Track the child window we clicked on to move a window. ImGuiID MovingWindowMoveId; // == MovingWindow->MoveId ImVector ColorModifiers; // Stack for PushStyleColor()/PopStyleColor() ImVector StyleModifiers; // Stack for PushStyleVar()/PopStyleVar() ImVector FontStack; // Stack for PushFont()/PopFont() ImVector OpenPopupStack; // Which popups are open (persistent) ImVector CurrentPopupStack; // Which level of BeginPopup() we are in (reset every frame) ImGuiNextWindowData NextWindowData; // Storage for SetNextWindow** functions bool NextTreeNodeOpenVal; // Storage for SetNextTreeNode** functions ImGuiCond NextTreeNodeOpenCond; // Navigation data (for gamepad/keyboard) ImGuiWindow* NavWindow; // Focused window for navigation. Could be called 'FocusWindow' ImGuiID NavId; // Focused item for navigation ImGuiID NavActivateId; // ~~ IsNavInputPressed(ImGuiNavInput_PadActivate) ? NavId : 0, also set when calling ActivateItem() ImGuiID NavActivateDownId; // ~~ IsNavInputPressed(ImGuiNavInput_PadActivate) ? NavId : 0 ImGuiID NavInputId; // ~~ IsNavInputPressed(ImGuiNavInput_PadInput) ? NavId : 0 ImGuiID NavJustTabbedId; // Just tabbed to this id. ImGuiID NavNextActivateId; // Set by ActivateItem(), queued until next frame ImGuiID NavJustMovedToId; // Just navigated to this id (result of a successfully MoveRequest) ImRect NavScoringRectScreen; // Rectangle used for scoring, in screen space. Based of window->DC.NavRefRectRel[], modified for directional navigation scoring. ImGuiWindow* NavWindowingTarget; float NavWindowingDisplayAlpha; bool NavWindowingToggleLayer; int 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. int NavIdTabCounter; // == NavWindow->DC.FocusIdxTabCounter at time of NavId processing bool NavIdIsAlive; // Nav widget has been seen this frame ~~ NavRefRectRel is valid bool NavMousePosDirty; 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. bool NavAnyRequest; // ~~ NavMoveRequest || NavInitRequest bool NavInitRequest; // Init request for appearing window to select first item ImGuiID NavInitResultId; ImRect NavInitResultRectRel; bool NavInitResultExplicit; // Whether the result was explicitly requested with SetItemDefaultFocus() bool NavMoveFromClampedRefRect; // Set by manual scrolling, if we scroll to a point where NavId isn't visible we reset navigation from visible items bool NavMoveRequest; // Move request for this frame int NavMoveRequestForwardStep; // 0: no forward, 1: forward request, 2: forward result (this is used to navigate sibling parent menus from a child menu) ImGuiDir NavMoveDir; // Direction of the move request (left/right/up/down) ImGuiDir NavMoveDirLast; // Direction of the previous move request ImGuiID NavMoveResultId; // Best move request candidate ImGuiID NavMoveResultParentId; // float NavMoveResultDistBox; // Best move request candidate box distance to current NavId float NavMoveResultDistCenter; // Best move request candidate center distance to current NavId float NavMoveResultDistAxial; ImRect NavMoveResultRectRel; // Best move request candidate bounding box in window relative space // Render ImDrawData RenderDrawData; // Main ImDrawData instance to pass render information to the user ImVector RenderDrawLists[3]; float ModalWindowDarkeningRatio; ImDrawList OverlayDrawList; // Optional software render of mouse cursors, if io.MouseDrawCursor is set + a few debug overlays ImGuiMouseCursor MouseCursor; ImGuiMouseCursorData MouseCursorData[ImGuiMouseCursor_Count_]; // Drag and Drop bool DragDropActive; ImGuiDragDropFlags DragDropSourceFlags; int DragDropMouseButton; ImGuiPayload DragDropPayload; ImRect DragDropTargetRect; ImGuiID DragDropTargetId; float DragDropAcceptIdCurrRectSurface; 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 ImVector DragDropPayloadBufHeap; // We don't expose the ImVector<> directly unsigned char DragDropPayloadBufLocal[8]; // Widget state ImGuiTextEditState InputTextState; ImFont InputTextPasswordFont; ImGuiID ScalarAsInputTextId; // Temporary text input when CTRL+clicking on a slider, etc. ImGuiColorEditFlags ColorEditOptions; // Store user options for color edit widgets ImVec4 ColorPickerRef; float DragCurrentValue; // Currently dragged value, always float, not rounded by end-user precision settings ImVec2 DragLastMouseDelta; float DragSpeedDefaultRatio; // If speed == 0.0f, uses (max-min) * DragSpeedDefaultRatio float DragSpeedScaleSlow; float DragSpeedScaleFast; ImVec2 ScrollbarClickDeltaToGrabCenter; // Distance between mouse and center of grab box, normalized in parent space. Use storage? int TooltipOverrideCount; ImVector PrivateClipboard; // If no custom clipboard handler is defined ImVec2 OsImePosRequest, OsImePosSet; // Cursor position request & last passed to the OS Input Method Editor // Settings float SettingsDirtyTimer; // Save .ini Settings on disk when time reaches zero ImVector SettingsWindows; // .ini settings for ImGuiWindow ImVector SettingsHandlers; // List of .ini settings handlers // Logging bool LogEnabled; FILE* LogFile; // If != NULL log to stdout/ file ImGuiTextBuffer* LogClipboard; // Else log to clipboard. This is pointer so our GImGui static constructor doesn't call heap allocators. int LogStartDepth; int LogAutoExpandMaxDepth; // Misc float FramerateSecPerFrame[120]; // calculate estimate of framerate for user int FramerateSecPerFrameIdx; float FramerateSecPerFrameAccum; int WantCaptureMouseNextFrame; // explicit capture via CaptureInputs() sets those flags int WantCaptureKeyboardNextFrame; int WantTextInputNextFrame; char TempBuffer[1024*3+1]; // temporary text buffer ImGuiContext() : OverlayDrawList(NULL) { Initialized = false; Font = NULL; FontSize = FontBaseSize = 0.0f; Time = 0.0f; FrameCount = 0; FrameCountEnded = FrameCountRendered = -1; WindowsActiveCount = 0; CurrentWindow = NULL; HoveredWindow = NULL; HoveredRootWindow = NULL; HoveredId = 0; HoveredIdAllowOverlap = false; HoveredIdPreviousFrame = 0; HoveredIdTimer = 0.0f; ActiveId = 0; ActiveIdPreviousFrame = 0; ActiveIdTimer = 0.0f; ActiveIdIsAlive = false; ActiveIdIsJustActivated = false; ActiveIdAllowOverlap = false; ActiveIdAllowNavDirFlags = 0; ActiveIdClickOffset = ImVec2(-1,-1); ActiveIdWindow = NULL; ActiveIdSource = ImGuiInputSource_None; MovingWindow = NULL; MovingWindowMoveId = 0; NextTreeNodeOpenVal = false; NextTreeNodeOpenCond = 0; NavWindow = NULL; NavId = NavActivateId = NavActivateDownId = NavInputId = 0; NavJustTabbedId = NavJustMovedToId = NavNextActivateId = 0; NavScoringRectScreen = ImRect(); NavWindowingTarget = NULL; NavWindowingDisplayAlpha = 0.0f; NavWindowingToggleLayer = false; NavLayer = 0; NavIdTabCounter = INT_MAX; NavIdIsAlive = false; NavMousePosDirty = false; NavDisableHighlight = true; NavDisableMouseHover = false; NavAnyRequest = false; NavInitRequest = false; NavInitResultId = 0; NavInitResultExplicit = false; NavMoveFromClampedRefRect = false; NavMoveRequest = false; NavMoveRequestForwardStep = 0; NavMoveDir = NavMoveDirLast = ImGuiDir_None; NavMoveResultId = 0; NavMoveResultParentId = 0; NavMoveResultDistBox = NavMoveResultDistCenter = NavMoveResultDistAxial = 0.0f; DragDropActive = false; DragDropSourceFlags = 0; DragDropMouseButton = -1; DragDropTargetId = 0; DragDropAcceptIdPrev = DragDropAcceptIdCurr = 0; DragDropAcceptFrameCount = -1; memset(DragDropPayloadBufLocal, 0, sizeof(DragDropPayloadBufLocal)); ScalarAsInputTextId = 0; ColorEditOptions = ImGuiColorEditFlags__OptionsDefault; DragCurrentValue = 0.0f; DragLastMouseDelta = ImVec2(0.0f, 0.0f); DragSpeedDefaultRatio = 1.0f / 100.0f; DragSpeedScaleSlow = 1.0f / 100.0f; DragSpeedScaleFast = 10.0f; ScrollbarClickDeltaToGrabCenter = ImVec2(0.0f, 0.0f); TooltipOverrideCount = 0; OsImePosRequest = OsImePosSet = ImVec2(-1.0f, -1.0f); ModalWindowDarkeningRatio = 0.0f; OverlayDrawList._Data = &DrawListSharedData; OverlayDrawList._OwnerName = "##Overlay"; // Give it a name for debugging MouseCursor = ImGuiMouseCursor_Arrow; memset(MouseCursorData, 0, sizeof(MouseCursorData)); SettingsDirtyTimer = 0.0f; LogEnabled = false; LogFile = NULL; LogClipboard = NULL; LogStartDepth = 0; LogAutoExpandMaxDepth = 2; memset(FramerateSecPerFrame, 0, sizeof(FramerateSecPerFrame)); FramerateSecPerFrameIdx = 0; FramerateSecPerFrameAccum = 0.0f; WantCaptureMouseNextFrame = WantCaptureKeyboardNextFrame = WantTextInputNextFrame = -1; memset(TempBuffer, 0, sizeof(TempBuffer)); } }; // Transient per-window flags, reset at the beginning of the frame. For child window, inherited from parent on first Begin(). enum ImGuiItemFlags_ { ImGuiItemFlags_AllowKeyboardFocus = 1 << 0, // true ImGuiItemFlags_ButtonRepeat = 1 << 1, // false // Button() will return true multiple times based on io.KeyRepeatDelay and io.KeyRepeatRate settings. ImGuiItemFlags_Disabled = 1 << 2, // false // FIXME-WIP: Disable interactions but doesn't affect visuals. Should be: grey out and disable interactions with widgets that affect data + view widgets (WIP) ImGuiItemFlags_NoNav = 1 << 3, // false ImGuiItemFlags_NoNavDefaultFocus = 1 << 4, // false ImGuiItemFlags_SelectableDontClosePopup = 1 << 5, // false // MenuItem/Selectable() automatically closes current Popup window ImGuiItemFlags_Default_ = ImGuiItemFlags_AllowKeyboardFocus }; // Transient per-window data, reset at the beginning of the frame // FIXME: That's theory, in practice the delimitation between ImGuiWindow and ImGuiDrawContext is quite tenuous and could be reconsidered. struct IMGUI_API ImGuiDrawContext { ImVec2 CursorPos; ImVec2 CursorPosPrevLine; ImVec2 CursorStartPos; ImVec2 CursorMaxPos; // Used to implicitly calculate the size of our contents, always growing during the frame. Turned into window->SizeContents at the beginning of next frame float CurrentLineHeight; float CurrentLineTextBaseOffset; float PrevLineHeight; float PrevLineTextBaseOffset; float LogLinePosY; int TreeDepth; ImGuiID LastItemId; ImRect LastItemRect; bool LastItemRectHoveredRect; bool NavHasScroll; // Set when scrolling can be used (ScrollMax > 0.0f) int NavLayerCurrent; // Current layer, 0..31 (we currently only use 0..1) int NavLayerCurrentMask; // = (1 << NavLayerCurrent) used by ItemAdd prior to clipping. int NavLayerActiveMask; // Which layer have been written to (result from previous frame) int NavLayerActiveMaskNext; // Which layer have been written to (buffer for current frame) bool MenuBarAppending; // FIXME: Remove this float MenuBarOffsetX; ImVector ChildWindows; ImGuiStorage* StateStorage; ImGuiLayoutType LayoutType; ImGuiLayoutType ParentLayoutType; // Layout type of parent window at the time of Begin() // We store the current settings outside of the vectors to increase memory locality (reduce cache misses). The vectors are rarely modified. Also it allows us to not heap allocate for short-lived windows which are not using those settings. ImGuiItemFlags ItemFlags; // == ItemFlagsStack.back() [empty == ImGuiItemFlags_Default] float ItemWidth; // == ItemWidthStack.back(). 0.0: default, >0.0: width in pixels, <0.0: align xx pixels to the right of window float TextWrapPos; // == TextWrapPosStack.back() [empty == -1.0f] ImVectorItemFlagsStack; ImVector ItemWidthStack; ImVector TextWrapPosStack; ImVectorGroupStack; int StackSizesBackup[6]; // Store size of various stacks for asserting float IndentX; // Indentation / start position from left of window (increased by TreePush/TreePop, etc.) float GroupOffsetX; float ColumnsOffsetX; // Offset to the current column (if ColumnsCurrent > 0). FIXME: This and the above should be a stack to allow use cases like Tree->Column->Tree. Need revamp columns API. ImGuiColumnsSet* ColumnsSet; // Current columns set ImGuiDrawContext() { CursorPos = CursorPosPrevLine = CursorStartPos = CursorMaxPos = ImVec2(0.0f, 0.0f); CurrentLineHeight = PrevLineHeight = 0.0f; CurrentLineTextBaseOffset = PrevLineTextBaseOffset = 0.0f; LogLinePosY = -1.0f; TreeDepth = 0; LastItemId = 0; LastItemRect = ImRect(); LastItemRectHoveredRect = false; NavHasScroll = false; NavLayerActiveMask = NavLayerActiveMaskNext = 0x00; NavLayerCurrent = 0; NavLayerCurrentMask = 1 << 0; MenuBarAppending = false; MenuBarOffsetX = 0.0f; StateStorage = NULL; LayoutType = ParentLayoutType = ImGuiLayoutType_Vertical; ItemWidth = 0.0f; ItemFlags = ImGuiItemFlags_Default_; TextWrapPos = -1.0f; memset(StackSizesBackup, 0, sizeof(StackSizesBackup)); IndentX = 0.0f; GroupOffsetX = 0.0f; ColumnsOffsetX = 0.0f; ColumnsSet = NULL; } }; // Windows data struct IMGUI_API ImGuiWindow { char* Name; ImGuiID ID; // == ImHash(Name) ImGuiWindowFlags Flags; // See enum ImGuiWindowFlags_ ImVec2 PosFloat; ImVec2 Pos; // Position rounded-up to nearest pixel ImVec2 Size; // Current size (==SizeFull or collapsed title bar size) ImVec2 SizeFull; // Size when non collapsed ImVec2 SizeFullAtLastBegin; // Copy of SizeFull at the end of Begin. This is the reference value we'll use on the next frame to decide if we need scrollbars. ImVec2 SizeContents; // Size of contents (== extents reach of the drawing cursor) from previous frame. Include decoration, window title, border, menu, etc. ImVec2 SizeContentsExplicit; // Size of contents explicitly set by the user via SetNextWindowContentSize() ImRect ContentsRegionRect; // Maximum visible content position in window coordinates. ~~ (SizeContentsExplicit ? SizeContentsExplicit : Size - ScrollbarSizes) - CursorStartPos, per axis ImVec2 WindowPadding; // Window padding at the time of begin. float WindowRounding; // Window rounding at the time of begin. float WindowBorderSize; // Window border size at the time of begin. ImGuiID MoveId; // == window->GetID("#MOVE") ImGuiID ChildId; // Id of corresponding item in parent window (for child windows) ImVec2 Scroll; ImVec2 ScrollTarget; // target scroll position. stored as cursor position with scrolling canceled out, so the highest point is always 0.0f. (FLT_MAX for no change) ImVec2 ScrollTargetCenterRatio; // 0.0f = scroll so that target position is at top, 0.5f = scroll so that target position is centered bool ScrollbarX, ScrollbarY; ImVec2 ScrollbarSizes; bool Active; // Set to true on Begin(), unless Collapsed bool WasActive; bool WriteAccessed; // Set to true when any widget access the current window bool Collapsed; // Set when collapsing window to become only title-bar bool CollapseToggleWanted; bool SkipItems; // Set when items can safely be all clipped (e.g. window not visible or collapsed) bool Appearing; // Set during the frame where the window is appearing (or re-appearing) bool CloseButton; // Set when the window has a close button (p_open != NULL) int BeginOrderWithinParent; // Order within immediate parent window, if we are a child window. Otherwise 0. int BeginOrderWithinContext; // Order within entire imgui context. This is mostly used for debugging submission order related issues. int BeginCount; // Number of Begin() during the current frame (generally 0 or 1, 1+ if appending via multiple Begin/End pairs) ImGuiID PopupId; // ID in the popup stack when this window is used as a popup/menu (because we use generic Name/ID for recycling) int AutoFitFramesX, AutoFitFramesY; bool AutoFitOnlyGrows; int AutoFitChildAxises; ImGuiDir AutoPosLastDirection; int HiddenFrames; ImGuiCond SetWindowPosAllowFlags; // store condition flags for next SetWindowPos() call. ImGuiCond SetWindowSizeAllowFlags; // store condition flags for next SetWindowSize() call. ImGuiCond SetWindowCollapsedAllowFlags; // store condition flags for next SetWindowCollapsed() call. ImVec2 SetWindowPosVal; // store window position when using a non-zero Pivot (position set needs to be processed when we know the window size) ImVec2 SetWindowPosPivot; // store window pivot for positioning. ImVec2(0,0) when positioning from top-left corner; ImVec2(0.5f,0.5f) for centering; ImVec2(1,1) for bottom right. ImGuiID NavLastIds[2]; // Last known NavId for this window, per layer (0/1) ImRect NavRectRel[2]; // Reference rectangle, in window space ImGuiDrawContext DC; // Temporary per-window data, reset at the beginning of the frame ImVector IDStack; // ID stack. ID are hashes seeded with the value at the top of the stack ImRect ClipRect; // = DrawList->clip_rect_stack.back(). Scissoring / clipping rectangle. x1, y1, x2, y2. ImRect WindowRectClipped; // = WindowRect just after setup in Begin(). == window->Rect() for root window. ImRect InnerRect; int LastFrameActive; float ItemWidthDefault; ImGuiMenuColumns MenuColumns; // Simplified columns storage for menu items ImGuiStorage StateStorage; ImVector ColumnsStorage; float FontWindowScale; // Scale multiplier per-window ImDrawList* DrawList; ImGuiWindow* ParentWindow; // If we are a child _or_ popup window, this is pointing to our parent. Otherwise NULL. ImGuiWindow* RootWindow; // Generally point to ourself. If we are a child window, this is pointing to the first non-child parent window. ImGuiWindow* RootNonPopupWindow; // Generally point to ourself. Used to display TitleBgActive color and for selecting which window to use for NavWindowing ImGuiWindow* RootNavWindow; // Generally point to ourself. If we are a child window with the ImGuiWindowFlags_NavFlattenedChild flag, point to parent. Used to display TitleBgActive color and for selecting which window to use for NavWindowing. // Navigation / Focus // FIXME-NAVIGATION: Merge all this with the new Nav system, at least the request variables should be moved to ImGuiContext int FocusIdxAllCounter; // Start at -1 and increase as assigned via FocusItemRegister() int FocusIdxTabCounter; // (same, but only count widgets which you can Tab through) int FocusIdxAllRequestCurrent; // Item being requested for focus int FocusIdxTabRequestCurrent; // Tab-able item being requested for focus int FocusIdxAllRequestNext; // Item being requested for focus, for next update (relies on layout to be stable between the frame pressing TAB and the next frame) int FocusIdxTabRequestNext; // " public: ImGuiWindow(ImGuiContext* context, const char* name); ~ImGuiWindow(); ImGuiID GetID(const char* str, const char* str_end = NULL); ImGuiID GetID(const void* ptr); ImGuiID GetIDNoKeepAlive(const char* str, const char* str_end = NULL); ImGuiID GetIDFromRectangle(const ImRect& r_abs); // We don't use g.FontSize because the window may be != g.CurrentWidow. ImRect Rect() const { return ImRect(Pos.x, Pos.y, Pos.x+Size.x, Pos.y+Size.y); } float CalcFontSize() const { return GImGui->FontBaseSize * FontWindowScale; } float TitleBarHeight() const { return (Flags & ImGuiWindowFlags_NoTitleBar) ? 0.0f : CalcFontSize() + GImGui->Style.FramePadding.y * 2.0f; } ImRect TitleBarRect() const { return ImRect(Pos, ImVec2(Pos.x + SizeFull.x, Pos.y + TitleBarHeight())); } float MenuBarHeight() const { return (Flags & ImGuiWindowFlags_MenuBar) ? CalcFontSize() + GImGui->Style.FramePadding.y * 2.0f : 0.0f; } ImRect MenuBarRect() const { float y1 = Pos.y + TitleBarHeight(); return ImRect(Pos.x, y1, Pos.x + SizeFull.x, y1 + MenuBarHeight()); } }; // Backup and restore just enough data to be able to use IsItemHovered() on item A after another B in the same window has overwritten the data. struct ImGuiItemHoveredDataBackup { ImGuiID LastItemId; ImRect LastItemRect; bool LastItemRectHoveredRect; ImGuiItemHoveredDataBackup() { Backup(); } void Backup() { ImGuiWindow* window = GImGui->CurrentWindow; LastItemId = window->DC.LastItemId; LastItemRect = window->DC.LastItemRect; LastItemRectHoveredRect = window->DC.LastItemRectHoveredRect; } void Restore() const { ImGuiWindow* window = GImGui->CurrentWindow; window->DC.LastItemId = LastItemId; window->DC.LastItemRect = LastItemRect; window->DC.LastItemRectHoveredRect = LastItemRectHoveredRect; } }; //----------------------------------------------------------------------------- // Internal API // No guarantee of forward compatibility here. //----------------------------------------------------------------------------- namespace ImGui { // We should always have a CurrentWindow in the stack (there is an implicit "Debug" window) // If this ever crash because g.CurrentWindow is NULL it means that either // - ImGui::NewFrame() has never been called, which is illegal. // - You are calling ImGui functions after ImGui::Render() and before the next ImGui::NewFrame(), which is also illegal. inline ImGuiWindow* GetCurrentWindowRead() { ImGuiContext& g = *GImGui; return g.CurrentWindow; } inline ImGuiWindow* GetCurrentWindow() { ImGuiContext& g = *GImGui; g.CurrentWindow->WriteAccessed = true; return g.CurrentWindow; } IMGUI_API ImGuiWindow* FindWindowByName(const char* name); IMGUI_API void FocusWindow(ImGuiWindow* window); IMGUI_API void BringWindowToFront(ImGuiWindow* window); IMGUI_API void BringWindowToBack(ImGuiWindow* window); IMGUI_API bool IsWindowChildOf(ImGuiWindow* window, ImGuiWindow* potential_parent); IMGUI_API void Initialize(); IMGUI_API void MarkIniSettingsDirty(); IMGUI_API ImGuiSettingsHandler* FindSettingsHandler(const char* type_name); IMGUI_API ImGuiWindowSettings* FindWindowSettings(ImGuiID id); IMGUI_API void SetActiveID(ImGuiID id, ImGuiWindow* window); IMGUI_API ImGuiID GetActiveID(); IMGUI_API void SetFocusID(ImGuiID id, ImGuiWindow* window); IMGUI_API void ClearActiveID(); IMGUI_API void SetHoveredID(ImGuiID id); IMGUI_API ImGuiID GetHoveredID(); IMGUI_API void KeepAliveID(ImGuiID id); IMGUI_API void ItemSize(const ImVec2& size, float text_offset_y = 0.0f); IMGUI_API void ItemSize(const ImRect& bb, float text_offset_y = 0.0f); IMGUI_API bool ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb = NULL); IMGUI_API bool ItemHoverable(const ImRect& bb, ImGuiID id); IMGUI_API bool IsClippedEx(const ImRect& bb, ImGuiID id, bool clip_even_when_logged); IMGUI_API bool FocusableItemRegister(ImGuiWindow* window, ImGuiID id, bool tab_stop = true); // Return true if focus is requested IMGUI_API void FocusableItemUnregister(ImGuiWindow* window); IMGUI_API ImVec2 CalcItemSize(ImVec2 size, float default_x, float default_y); IMGUI_API float CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x); IMGUI_API void PushMultiItemsWidths(int components, float width_full = 0.0f); IMGUI_API void PushItemFlag(ImGuiItemFlags option, bool enabled); IMGUI_API void PopItemFlag(); IMGUI_API void OpenPopupEx(ImGuiID id); IMGUI_API void ClosePopup(ImGuiID id); IMGUI_API bool IsPopupOpen(ImGuiID id); IMGUI_API bool BeginPopupEx(ImGuiID id, ImGuiWindowFlags extra_flags); IMGUI_API void BeginTooltipEx(ImGuiWindowFlags extra_flags, bool override_previous_tooltip = true); IMGUI_API void NavInitWindow(ImGuiWindow* window, bool force_reinit); IMGUI_API int CalcTypematicPressedRepeatAmount(float t, float t_prev, float repeat_delay, float repeat_rate); IMGUI_API void Scrollbar(ImGuiLayoutType direction); IMGUI_API void VerticalSeparator(); // Vertical separator, for menu bars (use current line height). not exposed because it is misleading what it doesn't have an effect on regular layout. IMGUI_API bool SplitterBehavior(ImGuiID id, const ImRect& bb, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend = 0.0f); IMGUI_API bool BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id); IMGUI_API void ClearDragDrop(); IMGUI_API bool IsDragDropPayloadBeingAccepted(); // FIXME-WIP: New Columns API IMGUI_API void BeginColumns(const char* str_id, int count, ImGuiColumnsFlags flags = 0); // setup number of columns. use an identifier to distinguish multiple column sets. close with EndColumns(). IMGUI_API void EndColumns(); // close columns IMGUI_API void PushColumnClipRect(int column_index = -1); // NB: All position are in absolute pixels coordinates (never using window coordinates internally) // AVOID USING OUTSIDE OF IMGUI.CPP! NOT FOR PUBLIC CONSUMPTION. THOSE FUNCTIONS ARE A MESS. THEIR SIGNATURE AND BEHAVIOR WILL CHANGE, THEY NEED TO BE REFACTORED INTO SOMETHING DECENT. IMGUI_API void RenderText(ImVec2 pos, const char* text, const char* text_end = NULL, bool hide_text_after_hash = true); IMGUI_API void RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end, float wrap_width); IMGUI_API void RenderTextClipped(const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& align = ImVec2(0,0), const ImRect* clip_rect = NULL); IMGUI_API void RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border = true, float rounding = 0.0f); IMGUI_API void RenderFrameBorder(ImVec2 p_min, ImVec2 p_max, float rounding = 0.0f); IMGUI_API void RenderColorRectWithAlphaCheckerboard(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, float grid_step, ImVec2 grid_off, float rounding = 0.0f, int rounding_corners_flags = ~0); IMGUI_API void RenderTriangle(ImVec2 pos, ImGuiDir dir, float scale = 1.0f); IMGUI_API void RenderBullet(ImVec2 pos); IMGUI_API void RenderCheckMark(ImVec2 pos, ImU32 col, float sz); IMGUI_API void RenderNavHighlight(const ImRect& bb, ImGuiID id, ImGuiNavHighlightFlags flags = ImGuiNavHighlightFlags_TypeDefault); // Navigation highlight IMGUI_API void RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding); IMGUI_API const char* FindRenderedTextEnd(const char* text, const char* text_end = NULL); // Find the optional ## from which we stop displaying text. IMGUI_API bool ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags = 0); IMGUI_API bool ButtonEx(const char* label, const ImVec2& size_arg = ImVec2(0,0), ImGuiButtonFlags flags = 0); IMGUI_API bool CloseButton(ImGuiID id, const ImVec2& pos, float radius); IMGUI_API bool ArrowButton(ImGuiID id, ImGuiDir dir, ImVec2 padding, ImGuiButtonFlags flags = 0); IMGUI_API bool SliderBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_min, float v_max, float power, int decimal_precision, ImGuiSliderFlags flags = 0); IMGUI_API bool SliderFloatN(const char* label, float* v, int components, float v_min, float v_max, const char* display_format, float power); IMGUI_API bool SliderIntN(const char* label, int* v, int components, int v_min, int v_max, const char* display_format); IMGUI_API bool DragBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_speed, float v_min, float v_max, int decimal_precision, float power); IMGUI_API bool DragFloatN(const char* label, float* v, int components, float v_speed, float v_min, float v_max, const char* display_format, float power); IMGUI_API bool DragIntN(const char* label, int* v, int components, float v_speed, int v_min, int v_max, const char* display_format); IMGUI_API bool InputTextEx(const char* label, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiTextEditCallback callback = NULL, void* user_data = NULL); IMGUI_API bool InputFloatN(const char* label, float* v, int components, int decimal_precision, ImGuiInputTextFlags extra_flags); IMGUI_API bool InputIntN(const char* label, int* v, int components, ImGuiInputTextFlags extra_flags); IMGUI_API bool InputScalarEx(const char* label, ImGuiDataType data_type, void* data_ptr, void* step_ptr, void* step_fast_ptr, const char* scalar_format, ImGuiInputTextFlags extra_flags); IMGUI_API bool InputScalarAsWidgetReplacement(const ImRect& aabb, const char* label, ImGuiDataType data_type, void* data_ptr, ImGuiID id, int decimal_precision); IMGUI_API void ColorTooltip(const char* text, const float* col, ImGuiColorEditFlags flags); IMGUI_API void ColorEditOptionsPopup(const float* col, ImGuiColorEditFlags flags); IMGUI_API bool TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end = NULL); IMGUI_API bool TreeNodeBehaviorIsOpen(ImGuiID id, ImGuiTreeNodeFlags flags = 0); // Consume previous SetNextTreeNodeOpened() data, if any. May return true when logging IMGUI_API void TreePushRawID(ImGuiID id); IMGUI_API void PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size); IMGUI_API int ParseFormatPrecision(const char* fmt, int default_value); IMGUI_API float RoundScalar(float value, int decimal_precision); // Shade functions IMGUI_API void ShadeVertsLinearColorGradientKeepAlpha(ImDrawVert* vert_start, ImDrawVert* vert_end, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1); IMGUI_API void ShadeVertsLinearAlphaGradientForLeftToRightText(ImDrawVert* vert_start, ImDrawVert* vert_end, float gradient_p0_x, float gradient_p1_x); IMGUI_API void ShadeVertsLinearUV(ImDrawVert* vert_start, ImDrawVert* vert_end, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp); } // namespace ImGui // ImFontAtlas internals IMGUI_API bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas); IMGUI_API void ImFontAtlasBuildRegisterDefaultCustomRects(ImFontAtlas* atlas); IMGUI_API void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent); IMGUI_API void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* spc); IMGUI_API void ImFontAtlasBuildFinish(ImFontAtlas* atlas); IMGUI_API void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_multiply_factor); IMGUI_API void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride); #ifdef __clang__ #pragma clang diagnostic pop #endif #ifdef _MSC_VER #pragma warning (pop) #endif