| // ImGui library v1.45 WIP |
| // Internals |
| // You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility! |
| |
| // Implement maths operators for ImVec2 (disabled by default to not collide with using IM_VEC2_CLASS_EXTRA along with your own math types+operators) |
| // #define IMGUI_DEFINE_MATH_OPERATORS |
| |
| #pragma once |
| |
| #ifndef IMGUI_VERSION |
| #error Must include imgui.h before imgui_internal.h |
| #endif |
| |
| #include <stdio.h> // FILE* |
| #include <math.h> // sqrtf() |
| |
| //----------------------------------------------------------------------------- |
| // Forward Declarations |
| //----------------------------------------------------------------------------- |
| |
| struct ImRect; |
| struct ImGuiColMod; |
| struct ImGuiStyleMod; |
| struct ImGuiGroupData; |
| struct ImGuiSimpleColumns; |
| struct ImGuiDrawContext; |
| struct ImGuiTextEditState; |
| struct ImGuiIniData; |
| struct ImGuiMouseCursorData; |
| struct ImGuiPopupRef; |
| struct ImGuiState; |
| struct ImGuiWindow; |
| |
| typedef int ImGuiLayoutType; // enum ImGuiLayoutType_ |
| typedef int ImGuiButtonFlags; // enum ImGuiButtonFlags_ |
| typedef int ImGuiTreeNodeFlags; // enum ImGuiTreeNodeFlags_ |
| |
| //------------------------------------------------------------------------- |
| // STB libraries |
| //------------------------------------------------------------------------- |
| |
| namespace ImGuiStb |
| { |
| |
| #ifdef __clang__ |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wunused-function" |
| #pragma clang diagnostic ignored "-Wmissing-prototypes" |
| #endif |
| |
| #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" |
| |
| #ifdef __clang__ |
| #pragma clang diagnostic pop |
| #endif |
| |
| } // namespace ImGuiStb |
| |
| //----------------------------------------------------------------------------- |
| // Context |
| //----------------------------------------------------------------------------- |
| |
| extern ImGuiState* GImGui; |
| |
| //----------------------------------------------------------------------------- |
| // Helpers |
| //----------------------------------------------------------------------------- |
| |
| #define IM_ARRAYSIZE(_ARR) ((int)(sizeof(_ARR)/sizeof(*_ARR))) |
| #define IM_PI 3.14159265358979323846f |
| |
| // Helpers: UTF-8 <> wchar |
| int ImTextStrToUtf8(char* buf, int buf_size, const ImWchar* in_text, const ImWchar* in_text_end); // return output UTF-8 bytes count |
| int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end); // return input UTF-8 bytes count |
| 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 |
| int ImTextCountCharsFromUtf8(const char* in_text, const char* in_text_end); // return number of UTF-8 code-points (NOT bytes count) |
| 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 |
| ImU32 ImHash(const void* data, int data_size, ImU32 seed = 0); // Pass data_size==0 for zero-terminated strings |
| bool ImLoadFileToMemory(const char* filename, const char* file_open_mode, void** out_file_data, int* out_file_size = NULL, int padding_bytes = 0); |
| bool ImIsPointInTriangle(const ImVec2& p, const ImVec2& a, const ImVec2& b, const ImVec2& c); |
| static inline bool ImCharIsSpace(int c) { return c == ' ' || c == '\t' || c == 0x3000; } |
| 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 |
| int ImStricmp(const char* str1, const char* str2); |
| int ImStrnicmp(const char* str1, const char* str2, int count); |
| char* ImStrdup(const char* str); |
| int ImStrlenW(const ImWchar* str); |
| const ImWchar* ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin); // Find beginning-of-line |
| const char* ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end); |
| int ImFormatString(char* buf, int buf_size, const char* fmt, ...) IM_PRINTFARGS(3); |
| int ImFormatStringV(char* buf, int buf_size, const char* fmt, va_list args); |
| |
| // 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-lhs.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 float ImLerp(float a, float b, float t) { return a + (b - a) * 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 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 ImVec2 ImRound(ImVec2 v) { return ImVec2((float)(int)v.x, (float)(int)v.y); } |
| |
| //----------------------------------------------------------------------------- |
| // Types |
| //----------------------------------------------------------------------------- |
| |
| enum ImGuiButtonFlags_ |
| { |
| ImGuiButtonFlags_Repeat = 1 << 0, |
| ImGuiButtonFlags_PressedOnClick = 1 << 1, // return pressed on click only (default requires click+release) |
| ImGuiButtonFlags_PressedOnRelease = 1 << 2, // return pressed on release only (default requires click+release) |
| ImGuiButtonFlags_FlattenChilds = 1 << 3, |
| ImGuiButtonFlags_DontClosePopups = 1 << 4, |
| ImGuiButtonFlags_Disabled = 1 << 5, |
| ImGuiButtonFlags_AlignTextBaseLine = 1 << 6 |
| }; |
| |
| enum ImGuiTreeNodeFlags_ |
| { |
| ImGuiTreeNodeFlags_DefaultOpen = 1 << 0, |
| ImGuiTreeNodeFlags_NoAutoExpandOnLog = 1 << 1 |
| }; |
| |
| enum ImGuiSelectableFlagsPrivate_ |
| { |
| // NB: need to be in sync with last value of ImGuiSelectableFlags_ |
| ImGuiSelectableFlags_Menu = 1 << 2, |
| ImGuiSelectableFlags_MenuItem = 1 << 3, |
| ImGuiSelectableFlags_Disabled = 1 << 4, |
| ImGuiSelectableFlags_DrawFillAvailWidth = 1 << 5 |
| }; |
| |
| // FIXME: this is in development, not exposed/functional as a generic feature yet. |
| enum ImGuiLayoutType_ |
| { |
| ImGuiLayoutType_Vertical, |
| ImGuiLayoutType_Horizontal |
| }; |
| |
| enum ImGuiPlotType |
| { |
| ImGuiPlotType_Lines, |
| ImGuiPlotType_Histogram |
| }; |
| |
| enum ImGuiDataType |
| { |
| ImGuiDataType_Int, |
| ImGuiDataType_Float |
| }; |
| |
| // 2D axis aligned bounding-box |
| // NB: we can't rely on ImVec2 math operators being available here |
| struct 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; } |
| ImVec2 GetTR() const { return ImVec2(Max.x, Min.y); } |
| ImVec2 GetBL() const { return ImVec2(Min.x, Max.y); } |
| ImVec2 GetBR() const { return Max; } |
| 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& rhs) { if (Min.x > rhs.x) Min.x = rhs.x; if (Min.y > rhs.y) Min.y = rhs.y; if (Max.x < rhs.x) Max.x = rhs.x; if (Max.y < rhs.y) Max.y = rhs.y; } |
| void Add(const ImRect& rhs) { if (Min.x > rhs.Min.x) Min.x = rhs.Min.x; if (Min.y > rhs.Min.y) Min.y = rhs.Min.y; if (Max.x < rhs.Max.x) Max.x = rhs.Max.x; if (Max.y < rhs.Max.y) Max.y = rhs.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 Reduce(const ImVec2& amount) { Min.x += amount.x; Min.y += amount.y; Max.x -= amount.x; Max.y -= amount.y; } |
| void Clip(const ImRect& clip) { if (Min.x < clip.Min.x) Min.x = clip.Min.x; if (Min.y < clip.Min.y) Min.y = clip.Min.y; if (Max.x > clip.Max.x) Max.x = clip.Max.x; if (Max.y > clip.Max.y) Max.y = clip.Max.y; } |
| void Round() { Min.x = (float)(int)Min.x; Min.y = (float)(int)Min.y; Max.x = (float)(int)Max.x; Max.y = (float)(int)Max.y; } |
| ImVec2 GetClosestPoint(ImVec2 p, bool on_edge) const |
| { |
| if (!on_edge && Contains(p)) |
| return p; |
| if (p.x > Max.x) p.x = Max.x; |
| else if (p.x < Min.x) p.x = Min.x; |
| if (p.y > Max.y) p.y = Max.y; |
| else if (p.y < Min.y) p.y = Min.y; |
| return p; |
| } |
| }; |
| |
| // Stacked color modifier, backup of modified data so we can restore it |
| struct ImGuiColMod |
| { |
| ImGuiCol Col; |
| ImVec4 PreviousValue; |
| }; |
| |
| // Stacked style modifier, backup of modified data so we can restore it |
| struct ImGuiStyleMod |
| { |
| ImGuiStyleVar Var; |
| ImVec2 PreviousValue; |
| }; |
| |
| // Stacked data for BeginGroup()/EndGroup() |
| struct ImGuiGroupData |
| { |
| ImVec2 BackupCursorPos; |
| ImVec2 BackupCursorMaxPos; |
| float BackupColumnsStartX; |
| float BackupCurrentLineHeight; |
| float BackupCurrentLineTextBaseOffset; |
| float BackupLogLinePosY; |
| bool AdvanceCursor; |
| }; |
| |
| // Simple column measurement currently used for MenuItem() only. This is very short-sighted for now and not a generic helper. |
| struct ImGuiSimpleColumns |
| { |
| int Count; |
| float Spacing; |
| float Width, NextWidth; |
| float Pos[8], NextWidths[8]; |
| |
| ImGuiSimpleColumns(); |
| 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 ImGuiTextEditState |
| { |
| ImGuiID Id; // widget id owning the text state |
| ImVector<ImWchar> 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<char> InitialText; // backup of end-user buffer at the time of focus (in UTF-8, unaltered) |
| ImVector<char> 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; |
| ImVec2 InputCursorScreenPos; // Cursor position in screen space to be used by IME callback. |
| 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 |
| 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 ImGuiIniData |
| { |
| char* Name; |
| ImGuiID ID; |
| ImVec2 Pos; |
| ImVec2 Size; |
| bool Collapsed; |
| }; |
| |
| // 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() |
| ImGuiID ParentMenuSet; // Set on OpenPopup() |
| ImVec2 MousePosOnOpen; // Copy of mouse position at the time of opening popup |
| |
| ImGuiPopupRef(ImGuiID id, ImGuiWindow* parent_window, ImGuiID parent_menu_set, const ImVec2& mouse_pos) { PopupID = id; Window = NULL; ParentWindow = parent_window; ParentMenuSet = parent_menu_set; MousePosOnOpen = mouse_pos; } |
| }; |
| |
| // Main state for ImGui |
| struct ImGuiState |
| { |
| bool Initialized; |
| ImGuiIO IO; |
| ImGuiStyle Style; |
| ImFont* Font; // (Shortcut) == FontStack.empty() ? IO.Font : FontStack.back() |
| float FontSize; // (Shortcut) == FontBaseSize * g.CurrentWindow->FontWindowScale == window->FontSize() |
| float FontBaseSize; // (Shortcut) == IO.FontGlobalScale * Font->Scale * Font->FontSize. Size of characters. |
| ImVec2 FontTexUvWhitePixel; // (Shortcut) == Font->TexUvForWhite |
| |
| float Time; |
| int FrameCount; |
| int FrameCountRendered; |
| ImVector<ImGuiWindow*> Windows; |
| ImVector<ImGuiWindow*> WindowsSortBuffer; |
| ImGuiWindow* CurrentWindow; // Being drawn into |
| ImVector<ImGuiWindow*> CurrentWindowStack; |
| ImGuiWindow* FocusedWindow; // Will catch keyboard inputs |
| ImGuiWindow* HoveredWindow; // Will catch mouse inputs |
| ImGuiWindow* HoveredRootWindow; // Will catch mouse inputs (for focus/move only) |
| ImGuiID HoveredId; // Hovered widget |
| ImGuiID HoveredIdPreviousFrame; |
| ImGuiID ActiveId; // Active widget |
| ImGuiID ActiveIdPreviousFrame; |
| bool ActiveIdIsAlive; |
| bool ActiveIdIsJustActivated; // Set at the time of activation for one frame |
| bool ActiveIdIsFocusedOnly; // Set only by active widget. Denote focus but no active interaction |
| ImGuiWindow* ActiveIdWindow; |
| ImGuiWindow* MovedWindow; // Track the child window we clicked on to move a window. Pointer is only valid if ActiveID is the "#MOVE" identifier of a window. |
| ImVector<ImGuiIniData> Settings; // .ini Settings |
| float SettingsDirtyTimer; // Save .ini settinngs on disk when time reaches zero |
| int DisableHideTextAfterDoubleHash; |
| ImVector<ImGuiColMod> ColorModifiers; // Stack for PushStyleColor()/PopStyleColor() |
| ImVector<ImGuiStyleMod> StyleModifiers; // Stack for PushStyleVar()/PopStyleVar() |
| ImVector<ImFont*> FontStack; // Stack for PushFont()/PopFont() |
| ImVector<ImGuiPopupRef> OpenedPopupStack; // Which popups are open (persistent) |
| ImVector<ImGuiPopupRef> CurrentPopupStack; // Which level of BeginPopup() we are in (reset every frame) |
| |
| // Storage for SetNexWindow** and SetNextTreeNode*** functions |
| ImVec2 SetNextWindowPosVal; |
| ImVec2 SetNextWindowSizeVal; |
| ImVec2 SetNextWindowContentSizeVal; |
| bool SetNextWindowCollapsedVal; |
| ImGuiSetCond SetNextWindowPosCond; |
| ImGuiSetCond SetNextWindowSizeCond; |
| ImGuiSetCond SetNextWindowContentSizeCond; |
| ImGuiSetCond SetNextWindowCollapsedCond; |
| bool SetNextWindowFocus; |
| bool SetNextTreeNodeOpenedVal; |
| ImGuiSetCond SetNextTreeNodeOpenedCond; |
| |
| // Render |
| ImVector<ImDrawList*> 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_]; |
| |
| // Widget state |
| ImGuiTextEditState InputTextState; |
| ImGuiID ScalarAsInputTextId; // Temporary text input when CTRL+clicking on a slider, etc. |
| ImGuiStorage ColorEditModeStorage; // Store user selection of color edit mode |
| ImVec2 ActiveClickDeltaToCenter; |
| 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? |
| char Tooltip[1024]; |
| char* PrivateClipboard; // If no custom clipboard handler is defined |
| |
| // 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; |
| bool CaptureMouseNextFrame; // explicit capture via CaptureInputs() sets those flags |
| bool CaptureKeyboardNextFrame; |
| char TempBuffer[1024*3+1]; // temporary text buffer |
| |
| ImGuiState() |
| { |
| Initialized = false; |
| Font = NULL; |
| FontSize = FontBaseSize = 0.0f; |
| FontTexUvWhitePixel = ImVec2(0.0f, 0.0f); |
| |
| Time = 0.0f; |
| FrameCount = 0; |
| FrameCountRendered = -1; |
| CurrentWindow = NULL; |
| FocusedWindow = NULL; |
| HoveredWindow = NULL; |
| HoveredRootWindow = NULL; |
| HoveredId = 0; |
| HoveredIdPreviousFrame = 0; |
| ActiveId = 0; |
| ActiveIdPreviousFrame = 0; |
| ActiveIdIsAlive = false; |
| ActiveIdIsJustActivated = false; |
| ActiveIdIsFocusedOnly = false; |
| ActiveIdWindow = NULL; |
| MovedWindow = NULL; |
| SettingsDirtyTimer = 0.0f; |
| DisableHideTextAfterDoubleHash = 0; |
| |
| SetNextWindowPosVal = ImVec2(0.0f, 0.0f); |
| SetNextWindowSizeVal = ImVec2(0.0f, 0.0f); |
| SetNextWindowCollapsedVal = false; |
| SetNextWindowPosCond = 0; |
| SetNextWindowSizeCond = 0; |
| SetNextWindowCollapsedCond = 0; |
| SetNextWindowFocus = false; |
| SetNextTreeNodeOpenedVal = false; |
| SetNextTreeNodeOpenedCond = 0; |
| |
| ScalarAsInputTextId = 0; |
| ActiveClickDeltaToCenter = ImVec2(0.0f, 0.0f); |
| DragCurrentValue = 0.0f; |
| DragLastMouseDelta = ImVec2(0.0f, 0.0f); |
| DragSpeedDefaultRatio = 0.01f; |
| DragSpeedScaleSlow = 0.01f; |
| DragSpeedScaleFast = 10.0f; |
| ScrollbarClickDeltaToGrabCenter = ImVec2(0.0f, 0.0f); |
| memset(Tooltip, 0, sizeof(Tooltip)); |
| PrivateClipboard = NULL; |
| |
| ModalWindowDarkeningRatio = 0.0f; |
| OverlayDrawList._OwnerName = "##Overlay"; // Give it a name for debugging |
| MouseCursor = ImGuiMouseCursor_Arrow; |
| |
| LogEnabled = false; |
| LogFile = NULL; |
| LogClipboard = NULL; |
| LogStartDepth = 0; |
| LogAutoExpandMaxDepth = 2; |
| |
| memset(FramerateSecPerFrame, 0, sizeof(FramerateSecPerFrame)); |
| FramerateSecPerFrameIdx = 0; |
| FramerateSecPerFrameAccum = 0.0f; |
| CaptureMouseNextFrame = CaptureKeyboardNextFrame = false; |
| } |
| }; |
| |
| // 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 ImGuiDrawContext |
| { |
| ImVec2 CursorPos; |
| ImVec2 CursorPosPrevLine; |
| ImVec2 CursorStartPos; |
| ImVec2 CursorMaxPos; // Implicitly calculate the size of our contents, always extending. Saved into window->SizeContents at the end of the frame |
| float CurrentLineHeight; |
| float CurrentLineTextBaseOffset; |
| float PrevLineHeight; |
| float PrevLineTextBaseOffset; |
| float LogLinePosY; |
| int TreeDepth; |
| ImGuiID LastItemID; |
| ImRect LastItemRect; |
| bool LastItemHoveredAndUsable; |
| bool LastItemHoveredRect; |
| bool MenuBarAppending; |
| float MenuBarOffsetX; |
| ImVector<ImGuiWindow*> ChildWindows; |
| ImGuiStorage* StateStorage; |
| ImGuiLayoutType LayoutType; |
| |
| // 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. |
| bool ButtonRepeat; // == ButtonRepeatStack.back() [empty == false] |
| bool AllowKeyboardFocus; // == AllowKeyboardFocusStack.back() [empty == true] |
| 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] |
| ImVector<bool> ButtonRepeatStack; |
| ImVector<bool> AllowKeyboardFocusStack; |
| ImVector<float> ItemWidthStack; |
| ImVector<float> TextWrapPosStack; |
| ImVector<ImGuiGroupData>GroupStack; |
| ImGuiColorEditMode ColorEditMode; |
| int StackSizesBackup[6]; // Store size of various stacks for asserting |
| |
| float ColumnsStartX; // Indentation / start position from left of window (increased by TreePush/TreePop, etc.) |
| 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. |
| int ColumnsCurrent; |
| int ColumnsCount; |
| ImVec2 ColumnsStartPos; |
| float ColumnsCellMinY; |
| float ColumnsCellMaxY; |
| bool ColumnsShowBorders; |
| ImGuiID ColumnsSetID; |
| ImVector<float> ColumnsOffsetsT; // Columns offset normalized 0.0 (far left) -> 1.0 (far right) |
| |
| 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(0.0f,0.0f,0.0f,0.0f); |
| LastItemHoveredAndUsable = LastItemHoveredRect = false; |
| MenuBarAppending = false; |
| MenuBarOffsetX = 0.0f; |
| StateStorage = NULL; |
| LayoutType = ImGuiLayoutType_Vertical; |
| ItemWidth = 0.0f; |
| ButtonRepeat = false; |
| AllowKeyboardFocus = true; |
| TextWrapPos = -1.0f; |
| ColorEditMode = ImGuiColorEditMode_RGB; |
| memset(StackSizesBackup, 0, sizeof(StackSizesBackup)); |
| |
| ColumnsStartX = 0.0f; |
| ColumnsOffsetX = 0.0f; |
| ColumnsCurrent = 0; |
| ColumnsCount = 1; |
| ColumnsStartPos = ImVec2(0.0f, 0.0f); |
| ColumnsCellMinY = ColumnsCellMaxY = 0.0f; |
| ColumnsShowBorders = true; |
| ColumnsSetID = 0; |
| } |
| }; |
| |
| // Windows data |
| struct ImGuiWindow |
| { |
| char* Name; |
| ImGuiID ID; |
| ImGuiWindowFlags Flags; |
| 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 SizeContents; // Size of contents (== extents reach of the drawing cursor) from previous frame |
| ImVec2 SizeContentsExplicit; // Size of contents explicitly set by the user via SetNextWindowContentSize() |
| ImVec2 WindowPadding; // Window padding at the time of begin. We need to lock it, in particular manipulation of the ShowBorder would have an effect |
| ImGuiID MoveID; // == window->GetID("#MOVE") |
| 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() |
| bool WasActive; |
| bool Accessed; // Set to true when any widget access the current window |
| bool Collapsed; // Set when collapsing window to become only title-bar |
| bool SkipItems; // == Visible && !Collapsed |
| 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 AutoPosLastDirection; |
| int HiddenFrames; |
| int SetWindowPosAllowFlags; // bit ImGuiSetCond_*** specify if SetWindowPos() call will succeed with this particular flag. |
| int SetWindowSizeAllowFlags; // bit ImGuiSetCond_*** specify if SetWindowSize() call will succeed with this particular flag. |
| int SetWindowCollapsedAllowFlags; // bit ImGuiSetCond_*** specify if SetWindowCollapsed() call will succeed with this particular flag. |
| bool SetWindowPosCenterWanted; |
| |
| ImGuiDrawContext DC; // Temporary per-window data, reset at the beginning of the frame |
| ImVector<ImGuiID> 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 ClippedWindowRect; // = ClipRect just after setup in Begin() |
| int LastFrameDrawn; |
| float ItemWidthDefault; |
| ImGuiSimpleColumns MenuColumns; // Simplified columns storage for menu items |
| ImGuiStorage StateStorage; |
| float FontWindowScale; // Scale multiplier per-window |
| ImDrawList* DrawList; |
| ImGuiWindow* RootWindow; |
| ImGuiWindow* RootNonPopupWindow; |
| |
| // Focus |
| 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(const char* name); |
| ~ImGuiWindow(); |
| |
| ImGuiID GetID(const char* str, const char* str_end = NULL); |
| ImGuiID GetID(const void* ptr); |
| |
| 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()); } |
| ImU32 Color(ImGuiCol idx, float a=1.f) const { ImVec4 c = GImGui->Style.Colors[idx]; c.w *= GImGui->Style.Alpha * a; return ImGui::ColorConvertFloat4ToU32(c); } |
| ImU32 Color(const ImVec4& col) const { ImVec4 c = col; c.w *= GImGui->Style.Alpha; return ImGui::ColorConvertFloat4ToU32(c); } |
| }; |
| |
| //----------------------------------------------------------------------------- |
| // Internal API |
| // No guarantee of forward compatibility here. |
| //----------------------------------------------------------------------------- |
| |
| namespace ImGui |
| { |
| inline ImGuiWindow* GetCurrentWindowRead() { ImGuiState& g = *GImGui; return g.CurrentWindow; } // If this ever crash it means that ImGui::NewFrame() has never been called (which is illegal). We should always have a CurrentWindow in the stack (there is an implicit "Debug" window) |
| inline ImGuiWindow* GetCurrentWindow() { ImGuiState& g = *GImGui; g.CurrentWindow->Accessed = true; return g.CurrentWindow; } |
| IMGUI_API ImGuiWindow* GetParentWindow(); |
| IMGUI_API void FocusWindow(ImGuiWindow* window); |
| |
| IMGUI_API void SetActiveID(ImGuiID id, ImGuiWindow* window); |
| 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, const ImGuiID* id); |
| IMGUI_API bool IsClippedEx(const ImRect& bb, const ImGuiID* id, bool clip_even_when_logged); |
| IMGUI_API bool IsHovered(const ImRect& bb, ImGuiID id, bool flatten_childs = false); |
| IMGUI_API bool FocusableItemRegister(ImGuiWindow* window, bool is_active, 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); |
| |
| // NB: All position are in absolute pixels coordinates (not window coordinates) |
| 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, ImGuiAlign align = ImGuiAlign_Default, const ImVec2* clip_min = NULL, const ImVec2* clip_max = NULL); |
| IMGUI_API void RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border = true, float rounding = 0.0f); |
| IMGUI_API void RenderCollapseTriangle(ImVec2 p_min, bool opened, float scale = 1.0f, bool shadow = false); |
| IMGUI_API void RenderCheckMark(ImVec2 pos, ImU32 col); |
| |
| IMGUI_API bool ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, bool allow_key_modifiers, ImGuiButtonFlags flags = 0); |
| IMGUI_API bool ButtonEx(const char* label, const ImVec2& size_arg = ImVec2(0,0), 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, bool horizontal); |
| 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 bool TreeNodeBehaviorIsOpened(ImGuiID id, ImGuiTreeNodeFlags flags = 0); // Consume previous SetNextTreeNodeOpened() data, if any. May return true when logging |
| |
| 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); |
| |
| } // namespace ImGuiP |
| |
