Cool_Tools/imgui
1
0
Fork 0
mirror of https://github.com/ocornut/imgui.git synced 2024-11-12 02:00:58 +01:00
Code Releases Wiki Activity

Big cleanup, split imgui.cpp into imgui_demo.cpp,imgui_draw.cpp imgui_internal.h (#219)

Browse Source
This commit is contained in:
ocornut 2015-07-21 17:00:28 -06:00
parent 60dce8bc22
commit dace68b6fd
5 changed files with 5282 additions and 5053 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5546
imgui.cpp
View File

File diff suppressed because it is too large Load Diff

6
imgui.h
View File

@ -1,6 +1,8 @@
// ImGui library v1.44 WIP
// See .cpp file for documentation.
// See ImGui::ShowTestWindow() for sample code.
// Headers
// See imgui.cpp file for documentation.
// See ImGui::ShowTestWindow() in imgui_demo.cpp for demo code.
// Read 'Programmer guide' in .cpp for notes on how to setup ImGui in your codebase.
// Get latest version at https://github.com/ocornut/imgui

2044
imgui_demo.cpp Normal file
View File

File diff suppressed because it is too large Load Diff

2138
imgui_draw.cpp Normal file
View File

File diff suppressed because it is too large Load Diff

601
imgui_internal.h Normal file
View File

@ -0,0 +1,601 @@
// ImGui library v1.44 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_ENABLE_MATH_OPERATORS
// Implement maths functions:
// #define IMGUI_ENABLE_MATH_FUNCTIONS
#pragma once
#include <stdio.h> // FILE*
#ifdef IMGUI_DEFINE_MATH_FUNCTIONS
#include <math.h> // sqrtf()
#endif
//-----------------------------------------------------------------------------
// 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_
//-------------------------------------------------------------------------
// STB libraries implementation
//-------------------------------------------------------------------------
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);
bool ImLoadFileToMemory(const char* filename, const char* file_open_mode, void** out_file_data, int* out_file_size, int padding_bytes);
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* needle, const char* needle_end);
int ImFormatString(char* buf, int buf_size, const char* fmt, ...);
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
#ifdef IMGUI_DEFINE_MATH_FUNCTIONS
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; }
#endif
//-----------------------------------------------------------------------------
// Declarations
//-----------------------------------------------------------------------------
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 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
};
// 2D axis aligned bounding-box
// NB: we can't rely on ImVec2 math operators and helpers (ImMin,ImMax..) 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;
};
// 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()
ImGuiPopupRef(ImGuiID id, ImGuiWindow* parent_window, ImGuiID parent_menu_set) { PopupID = id; Window = NULL; ParentWindow = parent_window; ParentMenuSet = parent_menu_set; }
};
// 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;
bool SetNextWindowCollapsedVal;
ImGuiSetCond SetNextWindowPosCond;
ImGuiSetCond SetNextWindowSizeCond;
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; // current 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;
float ScrollbarClickDeltaToGrabCenter; // distance between mouse and center of grab box, normalized in parent space
char Tooltip[1024];
char* PrivateClipboard; // if no custom clipboard handler is defined
// Logging
bool LogEnabled;
FILE* LogFile;
ImGuiTextBuffer* LogClipboard; // 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 = 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;
}
};
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 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")
float ScrollY;
float ScrollTargetRelY; // target scroll position. stored as cursor position with scrolling canceled out, so the highest point is always 0.0f. (FLT_MAX for no change)
float ScrollTargetCenterRatioY; // 0.0f = scroll so that target position is at top, 0.5f = scroll so that target position is centered
bool ScrollbarY;
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
ImVec4 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()); }
float ScrollbarWidth() const { return ScrollbarY ? GImGui->Style.ScrollbarWidth : 0.0f; }
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); }
};