Merge branch 'master' into docking

# Conflicts:
#	docs/CHANGELOG.txt
#	examples/imgui_impl_dx10.cpp
#	examples/imgui_impl_dx10.h
#	examples/imgui_impl_dx11.cpp
#	examples/imgui_impl_dx11.h
#	examples/imgui_impl_dx12.cpp
#	examples/imgui_impl_dx12.h
#	examples/imgui_impl_dx9.cpp
#	examples/imgui_impl_dx9.h
#	examples/imgui_impl_metal.h
#	examples/imgui_impl_metal.mm
#	examples/imgui_impl_opengl3.cpp
#	examples/imgui_impl_opengl3.h
#	examples/imgui_impl_vulkan.cpp
#	imgui.cpp
#	imgui.h
#	imgui_internal.h
This commit is contained in:
omar
2019-11-26 12:23:43 +01:00
49 changed files with 533 additions and 346 deletions

257
imgui.cpp
View File

@ -1,4 +1,4 @@
// dear imgui, v1.74 WIP
// dear imgui, v1.74
// (main code and documentation)
// Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp for demo code.
@ -29,12 +29,12 @@ DOCUMENTATION
- MISSION STATEMENT
- END-USER GUIDE
- PROGRAMMER GUIDE
- Read first.
- How to update to a newer version of Dear ImGui.
- Getting started with integrating Dear ImGui in your code/engine.
- This is how a simple application may look like (2 variations).
- This is how a simple rendering function may look like.
- Using gamepad/keyboard navigation controls.
- READ FIRST
- HOW TO UPDATE TO A NEWER VERSION OF DEAR IMGUI
- GETTING STARTED WITH INTEGRATING DEAR IMGUI IN YOUR CODE/ENGINE
- HOW A SIMPLE APPLICATION MAY LOOK LIKE (2 variations)
- HOW A SIMPLE RENDERING FUNCTION MAY LOOK LIKE
- USING GAMEPAD/KEYBOARD NAVIGATION CONTROLS
- API BREAKING CHANGES (read me when you update!)
- FREQUENTLY ASKED QUESTIONS (FAQ)
- Read all answers online: https://www.dearimgui.org/faq, or in docs/FAQ.md (with a Markdown viewer)
@ -45,7 +45,8 @@ CODE
// [SECTION] FORWARD DECLARATIONS
// [SECTION] CONTEXT AND MEMORY ALLOCATORS
// [SECTION] MAIN USER FACING STRUCTURES (ImGuiStyle, ImGuiIO)
// [SECTION] MISC HELPERS/UTILITIES (Maths, String, Format, Hash, File functions)
// [SECTION] MISC HELPERS/UTILITIES (Geomtry, String, Format, Hash, File functions)
// [SECTION] MISC HELPERS/UTILITIES (File functions)
// [SECTION] MISC HELPERS/UTILITIES (ImText* functions)
// [SECTION] MISC HELPERS/UTILITIES (Color functions)
// [SECTION] ImGuiStorage
@ -120,8 +121,8 @@ CODE
PROGRAMMER GUIDE
================
READ FIRST:
READ FIRST
----------
- Remember to read the FAQ (https://www.dearimgui.org/faq)
- Your code creates the UI, if your code doesn't run the UI is gone! The UI can be highly dynamic, there are no construction
or destruction steps, less superfluous data retention on your side, less state duplication, less state synchronization, less bugs.
@ -142,8 +143,8 @@ CODE
However, imgui_internal.h can optionally export math operators for ImVec2/ImVec4, which we use in this codebase.
- C++: pay attention that ImVector<> manipulates plain-old-data and does not honor construction/destruction (avoid using it in your code!).
HOW TO UPDATE TO A NEWER VERSION OF DEAR IMGUI:
HOW TO UPDATE TO A NEWER VERSION OF DEAR IMGUI
----------------------------------------------
- Overwrite all the sources files except for imconfig.h (if you have made modification to your copy of imconfig.h)
- Or maintain your own branch where you have imconfig.h modified.
- Read the "API BREAKING CHANGES" section (below). This is where we list occasional API breaking changes.
@ -152,8 +153,8 @@ CODE
likely be a comment about it. Please report any issue to the GitHub page!
- Try to keep your copy of dear imgui reasonably up to date.
GETTING STARTED WITH INTEGRATING DEAR IMGUI IN YOUR CODE/ENGINE:
GETTING STARTED WITH INTEGRATING DEAR IMGUI IN YOUR CODE/ENGINE
---------------------------------------------------------------
- Run and study the examples and demo in imgui_demo.cpp to get acquainted with the library.
- Add the Dear ImGui source files to your projects or using your preferred build system.
It is recommended you build and statically link the .cpp files as part of your project and not as shared library (DLL).
@ -165,7 +166,8 @@ CODE
- Refer to the bindings and demo applications in the examples/ folder for instruction on how to setup your code.
- If you are running over a standard OS with a common graphics API, you should be able to use unmodified imgui_impl_*** files from the examples/ folder.
HOW A SIMPLE APPLICATION MAY LOOK LIKE:
HOW A SIMPLE APPLICATION MAY LOOK LIKE
--------------------------------------
EXHIBIT 1: USING THE EXAMPLE BINDINGS (imgui_impl_XXX.cpp files from the examples/ folder).
// Application init: create a dear imgui context, setup some options, load fonts
@ -201,8 +203,7 @@ CODE
ImGui_ImplWin32_Shutdown();
ImGui::DestroyContext();
HOW A SIMPLE APPLICATION MAY LOOK LIKE:
EXHIBIT 2: IMPLEMENTING CUSTOM BINDING / CUSTOM ENGINE.
EXHIBIT 2: IMPLEMENTING CUSTOM BINDING / CUSTOM ENGINE
// Application init: create a dear imgui context, setup some options, load fonts
ImGui::CreateContext();
@ -256,8 +257,8 @@ CODE
// Shutdown
ImGui::DestroyContext();
HOW A SIMPLE RENDERING FUNCTION MAY LOOK LIKE:
HOW A SIMPLE RENDERING FUNCTION MAY LOOK LIKE
---------------------------------------------
void void MyImGuiRenderFunction(ImDrawData* draw_data)
{
// TODO: Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled
@ -294,7 +295,7 @@ CODE
MyEngineScissor((int)(pcmd->ClipRect.x - pos.x), (int)(pcmd->ClipRect.y - pos.y), (int)(pcmd->ClipRect.z - pos.x), (int)(pcmd->ClipRect.w - pos.y));
// Render 'pcmd->ElemCount/3' indexed triangles.
// By default the indices ImDrawIdx are 16-bits, you can change them to 32-bits in imconfig.h if your engine doesn't support 16-bits indices.
// By default the indices ImDrawIdx are 16-bit, you can change them to 32-bit in imconfig.h if your engine doesn't support 16-bit indices.
MyEngineDrawIndexedTriangles(pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer, vtx_buffer);
}
idx_buffer += pcmd->ElemCount;
@ -309,7 +310,7 @@ CODE
- Refer to the FAQ for more information. Amusingly, it is called a FAQ because people frequently run into the same issues!
USING GAMEPAD/KEYBOARD NAVIGATION CONTROLS
------------------------------------------
- The gamepad/keyboard navigation is fairly functional and keeps being improved.
- Gamepad support is particularly useful to use dear imgui on a console system (e.g. PS4, Switch, XB1) without a mouse!
- You can ask questions and report issues at https://github.com/ocornut/imgui/issues/787
@ -363,6 +364,9 @@ CODE
- 2019/XX/XX (1.XX) - Moved IME support functions from io.ImeSetInputScreenPosFn, io.ImeWindowHandle to the PlatformIO api.
- 2019/11/21 (1.74) - ImFontAtlas::AddCustomRectRegular() now requires an ID larger than 0x110000 (instead of 0x10000) to conform with supporting Unicode planes 1-16 in a future update. ID below 0x110000 will now assert.
- 2019/11/19 (1.74) - renamed IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS to IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS for consistency.
- 2019/11/19 (1.74) - renamed IMGUI_DISABLE_MATH_FUNCTIONS to IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS for consistency.
- 2019/10/22 (1.74) - removed redirecting functions/enums that were marked obsolete in 1.52 (October 2017): Begin() (5 arguments signature), IsRootWindowOrAnyChildHovered(), AlignFirstTextHeightToWidgets(), SetNextWindowPosCenter(), ImFont::Glyph. See docs/Changelog.txt or grep this log for details and new names, or see how they were implemented until 1.73.
- 2019/10/14 (1.74) - inputs: Fixed a miscalculation in the keyboard/mouse "typematic" repeat delay/rate calculation, used by keys and e.g. repeating mouse buttons as well as the GetKeyPressedAmount() function.
if you were using a non-default value for io.KeyRepeatRate (previous default was 0.250), you can add +io.KeyRepeatDelay to it to compensate for the fix.
@ -481,14 +485,9 @@ CODE
- 2016/09/25 (1.50) - style.WindowTitleAlign is now a ImVec2 (ImGuiAlign enum was removed). set to (0.5f,0.5f) for horizontal+vertical centering, (0.0f,0.0f) for upper-left, etc.
- 2016/07/30 (1.50) - SameLine(x) with x>0.0f is now relative to left of column/group if any, and not always to left of window. This was sort of always the intent and hopefully breakage should be minimal.
- 2016/05/12 (1.49) - title bar (using ImGuiCol_TitleBg/ImGuiCol_TitleBgActive colors) isn't rendered over a window background (ImGuiCol_WindowBg color) anymore.
If your TitleBg/TitleBgActive alpha was 1.0f or you are using the default theme it will not affect you.
If your TitleBg/TitleBgActive alpha was <1.0f you need to tweak your custom theme to readjust for the fact that we don't draw a WindowBg background behind the title bar.
This helper function will convert an old TitleBg/TitleBgActive color into a new one with the same visual output, given the OLD color and the OLD WindowBg color.
ImVec4 ConvertTitleBgCol(const ImVec4& win_bg_col, const ImVec4& title_bg_col)
{
float new_a = 1.0f - ((1.0f - win_bg_col.w) * (1.0f - title_bg_col.w)), k = title_bg_col.w / new_a;
return ImVec4((win_bg_col.x * win_bg_col.w + title_bg_col.x) * k, (win_bg_col.y * win_bg_col.w + title_bg_col.y) * k, (win_bg_col.z * win_bg_col.w + title_bg_col.z) * k, new_a);
}
If your TitleBg/TitleBgActive alpha was 1.0f or you are using the default theme it will not affect you, otherwise if <1.0f you need tweak your custom theme to readjust for the fact that we don't draw a WindowBg background behind the title bar.
This helper function will convert an old TitleBg/TitleBgActive color into a new one with the same visual output, given the OLD color and the OLD WindowBg color:
ImVec4 ConvertTitleBgCol(const ImVec4& win_bg_col, const ImVec4& title_bg_col) { float new_a = 1.0f - ((1.0f - win_bg_col.w) * (1.0f - title_bg_col.w)), k = title_bg_col.w / new_a; return ImVec4((win_bg_col.x * win_bg_col.w + title_bg_col.x) * k, (win_bg_col.y * win_bg_col.w + title_bg_col.y) * k, (win_bg_col.z * win_bg_col.w + title_bg_col.z) * k, new_a); }
If this is confusing, pick the RGB value from title bar from an old screenshot and apply this as TitleBg/TitleBgActive. Or you may just create TitleBgActive from a tweaked TitleBg color.
- 2016/05/07 (1.49) - removed confusing set of GetInternalState(), GetInternalStateSize(), SetInternalState() functions. Now using CreateContext(), DestroyContext(), GetCurrentContext(), SetCurrentContext().
- 2016/05/02 (1.49) - renamed SetNextTreeNodeOpened() to SetNextTreeNodeOpen(), no redirection.
@ -758,7 +757,7 @@ CODE
Q: How can I easily use icons in my application?
Q: How can I load multiple fonts?
Q: How can I display and input non-Latin characters such as Chinese, Japanese, Korean, Cyrillic?
>> See https://www.dearimgui.org/faq and misc/fonts/README.txt
>> See https://www.dearimgui.org/faq and docs/FONTS.txt
Q&A: Community
==============
@ -1100,7 +1099,7 @@ ImGuiIO::ImGuiIO()
// - on Windows you can get those using ToAscii+keyboard state, or via the WM_CHAR message
void ImGuiIO::AddInputCharacter(unsigned int c)
{
if (c > 0 && c < 0x10000)
if (c > 0 && c <= IM_UNICODE_CODEPOINT_MAX)
InputQueueCharacters.push_back((ImWchar)c);
}
@ -1110,7 +1109,7 @@ void ImGuiIO::AddInputCharactersUTF8(const char* utf8_chars)
{
unsigned int c = 0;
utf8_chars += ImTextCharFromUtf8(&c, utf8_chars, NULL);
if (c > 0 && c < 0x10000)
if (c > 0 && c <= IM_UNICODE_CODEPOINT_MAX)
InputQueueCharacters.push_back((ImWchar)c);
}
}
@ -1121,7 +1120,7 @@ void ImGuiIO::ClearInputCharacters()
}
//-----------------------------------------------------------------------------
// [SECTION] MISC HELPERS/UTILITIES (Maths, String, Format, Hash, File functions)
// [SECTION] MISC HELPERS/UTILITIES (Geometry, String, Format, Hash, File functions)
//-----------------------------------------------------------------------------
ImVec2 ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p)
@ -1225,7 +1224,7 @@ const char* ImStrchrRange(const char* str, const char* str_end, char c)
int ImStrlenW(const ImWchar* str)
{
//return (int)wcslen((const wchar_t*)str); // FIXME-OPT: Could use this when wchar_t are 16-bits
//return (int)wcslen((const wchar_t*)str); // FIXME-OPT: Could use this when wchar_t are 16-bit
int n = 0;
while (*str++) n++;
return n;
@ -1293,12 +1292,16 @@ const char* ImStrSkipBlank(const char* str)
// A) MSVC version appears to return -1 on overflow, whereas glibc appears to return total count (which may be >= buf_size).
// Ideally we would test for only one of those limits at runtime depending on the behavior the vsnprintf(), but trying to deduct it at compile time sounds like a pandora can of worm.
// B) When buf==NULL vsnprintf() will return the output size.
#ifndef IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS
#ifndef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
// We support stb_sprintf which is much faster (see: https://github.com/nothings/stb/blob/master/stb_sprintf.h)
// You may set IMGUI_USE_STB_SPRINTF to use our default wrapper, or set IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
// and setup the wrapper yourself. (FIXME-OPT: Some of our high-level operations such as ImGuiTextBuffer::appendfv() are
// designed using two-passes worst case, which probably could be improved using the stbsp_vsprintfcb() function.)
//#define IMGUI_USE_STB_SPRINTF
#ifdef IMGUI_USE_STB_SPRINTF
#define STB_SPRINTF_IMPLEMENTATION
#include "imstb_sprintf.h"
#include "stb_sprintf.h"
#endif
#if defined(_MSC_VER) && !defined(vsnprintf)
@ -1337,7 +1340,7 @@ int ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args)
buf[w] = 0;
return w;
}
#endif // #ifdef IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS
#endif // #ifdef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
// CRC32 needs a 1KB lookup table (not cache friendly)
// Although the code to generate the table is simple and shorter than the table itself, using a const table allows us to easily:
@ -1409,10 +1412,16 @@ ImU32 ImHashStr(const char* data_p, size_t data_size, ImU32 seed)
return ~crc;
}
FILE* ImFileOpen(const char* filename, const char* mode)
//-----------------------------------------------------------------------------
// [SECTION] MISC HELPERS/UTILITIES (File functions)
//-----------------------------------------------------------------------------
// Default file functions
#ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
ImFileHandle ImFileOpen(const char* filename, const char* mode)
{
#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) && !defined(__CYGWIN__) && !defined(__GNUC__)
// We need a fopen() wrapper because MSVC/Windows fopen doesn't handle UTF-8 filenames. Converting both strings from UTF-8 to wchar format (using a single allocation, because we can)
// We need a fopen() wrapper because MSVC/Windows fopen doesn't handle UTF-8 filenames.
const int filename_wsize = ImTextCountCharsFromUtf8(filename, NULL) + 1;
const int mode_wsize = ImTextCountCharsFromUtf8(mode, NULL) + 1;
ImVector<ImWchar> buf;
@ -1425,42 +1434,48 @@ FILE* ImFileOpen(const char* filename, const char* mode)
#endif
}
// Load file content into memory
// We should in theory be using fseeko()/ftello() with off_t and _fseeki64()/_ftelli64() with __int64, waiting for the PR that does that in a very portable pre-C++11 zero-warnings way.
bool ImFileClose(ImFileHandle f) { return fclose(f) == 0; }
ImU64 ImFileGetSize(ImFileHandle f) { long off = 0, sz = 0; return ((off = ftell(f)) != -1 && !fseek(f, 0, SEEK_END) && (sz = ftell(f)) != -1 && !fseek(f, off, SEEK_SET)) ? (ImU64)sz : (ImU64)-1; }
ImU64 ImFileRead(void* data, ImU64 sz, ImU64 count, ImFileHandle f) { return fread(data, (size_t)sz, (size_t)count, f); }
ImU64 ImFileWrite(const void* data, ImU64 sz, ImU64 count, ImFileHandle f) { return fwrite(data, (size_t)sz, (size_t)count, f); }
#endif // #ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
// Helper: Load file content into memory
// Memory allocated with IM_ALLOC(), must be freed by user using IM_FREE() == ImGui::MemFree()
void* ImFileLoadToMemory(const char* filename, const char* file_open_mode, size_t* out_file_size, int padding_bytes)
void* ImFileLoadToMemory(const char* filename, const char* mode, size_t* out_file_size, int padding_bytes)
{
IM_ASSERT(filename && file_open_mode);
IM_ASSERT(filename && mode);
if (out_file_size)
*out_file_size = 0;
FILE* f;
if ((f = ImFileOpen(filename, file_open_mode)) == NULL)
ImFileHandle f;
if ((f = ImFileOpen(filename, mode)) == NULL)
return NULL;
long file_size_signed;
if (fseek(f, 0, SEEK_END) || (file_size_signed = ftell(f)) == -1 || fseek(f, 0, SEEK_SET))
size_t file_size = (size_t)ImFileGetSize(f);
if (file_size == (size_t)-1)
{
fclose(f);
ImFileClose(f);
return NULL;
}
size_t file_size = (size_t)file_size_signed;
void* file_data = IM_ALLOC(file_size + padding_bytes);
if (file_data == NULL)
{
fclose(f);
ImFileClose(f);
return NULL;
}
if (fread(file_data, 1, file_size, f) != file_size)
if (ImFileRead(file_data, 1, file_size, f) != file_size)
{
fclose(f);
ImFileClose(f);
IM_FREE(file_data);
return NULL;
}
if (padding_bytes > 0)
memset((void*)(((char*)file_data) + file_size), 0, (size_t)padding_bytes);
fclose(f);
ImFileClose(f);
if (out_file_size)
*out_file_size = file_size;
@ -1471,7 +1486,7 @@ void* ImFileLoadToMemory(const char* filename, const char* file_open_mode, size_
// [SECTION] MISC HELPERS/UTILITIES (ImText* functions)
//-----------------------------------------------------------------------------
// Convert UTF-8 to 32-bits character, process single character input.
// Convert UTF-8 to 32-bit character, process single character input.
// Based on stb_from_utf8() from github.com/nothings/stb/
// We handle UTF-8 decoding error by skipping forward.
int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end)
@ -1486,7 +1501,7 @@ int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char*
}
if ((*str & 0xe0) == 0xc0)
{
*out_char = 0xFFFD; // will be invalid but not end of string
*out_char = IM_UNICODE_CODEPOINT_INVALID; // will be invalid but not end of string
if (in_text_end && in_text_end - (const char*)str < 2) return 1;
if (*str < 0xc2) return 2;
c = (unsigned int)((*str++ & 0x1f) << 6);
@ -1497,7 +1512,7 @@ int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char*
}
if ((*str & 0xf0) == 0xe0)
{
*out_char = 0xFFFD; // will be invalid but not end of string
*out_char = IM_UNICODE_CODEPOINT_INVALID; // will be invalid but not end of string
if (in_text_end && in_text_end - (const char*)str < 3) return 1;
if (*str == 0xe0 && (str[1] < 0xa0 || str[1] > 0xbf)) return 3;
if (*str == 0xed && str[1] > 0x9f) return 3; // str[1] < 0x80 is checked below
@ -1511,7 +1526,7 @@ int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char*
}
if ((*str & 0xf8) == 0xf0)
{
*out_char = 0xFFFD; // will be invalid but not end of string
*out_char = IM_UNICODE_CODEPOINT_INVALID; // will be invalid but not end of string
if (in_text_end && in_text_end - (const char*)str < 4) return 1;
if (*str > 0xf4) return 4;
if (*str == 0xf0 && (str[1] < 0x90 || str[1] > 0xbf)) return 4;
@ -1542,7 +1557,7 @@ int ImTextStrFromUtf8(ImWchar* buf, int buf_size, const char* in_text, const cha
in_text += ImTextCharFromUtf8(&c, in_text, in_text_end);
if (c == 0)
break;
if (c < 0x10000) // FIXME: Losing characters that don't fit in 2 bytes
if (c <= IM_UNICODE_CODEPOINT_MAX) // FIXME: Losing characters that don't fit in 2 bytes
*buf_out++ = (ImWchar)c;
}
*buf_out = 0;
@ -1560,7 +1575,7 @@ int ImTextCountCharsFromUtf8(const char* in_text, const char* in_text_end)
in_text += ImTextCharFromUtf8(&c, in_text, in_text_end);
if (c == 0)
break;
if (c < 0x10000)
if (c <= IM_UNICODE_CODEPOINT_MAX)
char_count++;
}
return char_count;
@ -4071,9 +4086,12 @@ void ImGui::Shutdown(ImGuiContext* context)
g.SettingsWindows.clear();
g.SettingsHandlers.clear();
if (g.LogFile && g.LogFile != stdout)
if (g.LogFile)
{
fclose(g.LogFile);
#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
if (g.LogFile != stdout)
#endif
ImFileClose(g.LogFile);
g.LogFile = NULL;
}
g.LogBuffer.clear();
@ -4139,7 +4157,7 @@ static void AddDrawListToDrawData(ImVector<ImDrawList*>* out_list, ImDrawList* d
// (A) Handle the ImDrawCmd::VtxOffset value in your renderer back-end, and set 'io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset'.
// Most example back-ends already support this from 1.71. Pre-1.71 back-ends won't.
// Some graphics API such as GL ES 1/2 don't have a way to offset the starting vertex so it is not supported for them.
// (B) Or handle 32-bits indices in your renderer back-end, and uncomment '#define ImDrawIdx unsigned int' line in imconfig.h.
// (B) Or handle 32-bit indices in your renderer back-end, and uncomment '#define ImDrawIdx unsigned int' line in imconfig.h.
// Most example back-ends already support this. For example, the OpenGL example code detect index size at compile-time:
// glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
// Your own engine or render API may use different parameters or function calls to specify index sizes.
@ -6111,7 +6129,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
// Handle manual resize: Resize Grips, Borders, Gamepad
int border_held = -1;
ImU32 resize_grip_col[4] = {};
const int resize_grip_count = g.IO.ConfigWindowsResizeFromEdges ? 2 : 1; // 4
const int resize_grip_count = g.IO.ConfigWindowsResizeFromEdges ? 2 : 1; // Allow resize from lower-left if we have the mouse cursor feedback for it.
const float resize_grip_draw_size = IM_FLOOR(ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f));
if (handle_borders_and_resize_grips && !window->Collapsed)
if (UpdateManualResize(window, size_auto_fit, &border_held, resize_grip_count, &resize_grip_col[0]))
@ -9820,9 +9838,15 @@ void ImGui::LogText(const char* fmt, ...)
va_list args;
va_start(args, fmt);
if (g.LogFile)
vfprintf(g.LogFile, fmt, args);
else
{
g.LogBuffer.Buf.resize(0);
g.LogBuffer.appendfv(fmt, args);
ImFileWrite(g.LogBuffer.c_str(), sizeof(char), (ImU64)g.LogBuffer.size(), g.LogFile);
}
else
{
g.LogBuffer.appendfv(fmt, args);
}
va_end(args);
}
@ -9899,8 +9923,11 @@ void ImGui::LogToTTY(int auto_open_depth)
ImGuiContext& g = *GImGui;
if (g.LogEnabled)
return;
IM_UNUSED(auto_open_depth);
#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
LogBegin(ImGuiLogType_TTY, auto_open_depth);
g.LogFile = stdout;
#endif
}
// Start logging/capturing text output to given file
@ -9917,8 +9944,8 @@ void ImGui::LogToFile(int auto_open_depth, const char* filename)
filename = g.IO.LogFilename;
if (!filename || !filename[0])
return;
FILE* f = ImFileOpen(filename, "ab");
if (f == NULL)
ImFileHandle f = ImFileOpen(filename, "ab");
if (!f)
{
IM_ASSERT(0);
return;
@ -9955,10 +9982,12 @@ void ImGui::LogFinish()
switch (g.LogType)
{
case ImGuiLogType_TTY:
#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
fflush(g.LogFile);
#endif
break;
case ImGuiLogType_File:
fclose(g.LogFile);
ImFileClose(g.LogFile);
break;
case ImGuiLogType_Buffer:
break;
@ -9984,7 +10013,11 @@ void ImGui::LogButtons()
ImGuiContext& g = *GImGui;
PushID("LogButtons");
#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
const bool log_to_tty = Button("Log To TTY"); SameLine();
#else
const bool log_to_tty = false;
#endif
const bool log_to_file = Button("Log To File"); SameLine();
const bool log_to_clipboard = Button("Log To Clipboard"); SameLine();
PushAllowKeyboardFocus(false);
@ -10117,18 +10150,12 @@ void ImGui::LoadIniSettingsFromMemory(const char* ini_data, size_t ini_size)
line_end[-1] = 0;
const char* name_end = line_end - 1;
const char* type_start = line + 1;
char* type_end = (char*)(intptr_t)ImStrchrRange(type_start, name_end, ']');
char* type_end = (char*)(void*)ImStrchrRange(type_start, name_end, ']');
const char* name_start = type_end ? ImStrchrRange(type_end + 1, name_end, '[') : NULL;
if (!type_end || !name_start)
{
name_start = type_start; // Import legacy entries that have no type
type_start = "Window";
}
else
{
*type_end = 0; // Overwrite first ']'
name_start++; // Skip second '['
}
continue;
*type_end = 0; // Overwrite first ']'
name_start++; // Skip second '['
entry_handler = FindSettingsHandler(type_start);
entry_data = entry_handler ? entry_handler->ReadOpenFn(&g, entry_handler, name_start) : NULL;
}
@ -10152,11 +10179,11 @@ void ImGui::SaveIniSettingsToDisk(const char* ini_filename)
size_t ini_data_size = 0;
const char* ini_data = SaveIniSettingsToMemory(&ini_data_size);
FILE* f = ImFileOpen(ini_filename, "wt");
ImFileHandle f = ImFileOpen(ini_filename, "wt");
if (!f)
return;
fwrite(ini_data, sizeof(char), ini_data_size, f);
fclose(f);
ImFileWrite(ini_data, sizeof(char), ini_data_size, f);
ImFileClose(f);
}
// Call registered handlers (e.g. SettingsHandlerWindow_WriteAll() + custom handlers) to write their stuff into a text buffer
@ -14767,7 +14794,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
static bool show_windows_rects = false;
static int show_windows_rect_type = WRT_WorkRect;
static bool show_windows_begin_order = false;
static bool show_drawcmd_clip_rects = true;
static bool show_drawcmd_details = true;
static bool show_docking_nodes = false;
// Basic info
@ -14821,9 +14848,9 @@ void ImGui::ShowMetricsWindow(bool* p_open)
return;
if (window && !window->WasActive)
ImGui::Text("(Note: owning Window is inactive: DrawList is not being rendered!)");
ImGui::TextDisabled("Warning: owning Window is inactive. This DrawList is not being rendered!");
int elem_offset = 0;
unsigned int elem_offset = 0;
for (const ImDrawCmd* pcmd = draw_list->CmdBuffer.begin(); pcmd < draw_list->CmdBuffer.end(); elem_offset += pcmd->ElemCount, pcmd++)
{
if (pcmd->UserCallback == NULL && pcmd->ElemCount == 0)
@ -14833,45 +14860,77 @@ void ImGui::ShowMetricsWindow(bool* p_open)
ImGui::BulletText("Callback %p, user_data %p", pcmd->UserCallback, pcmd->UserCallbackData);
continue;
}
ImDrawIdx* idx_buffer = (draw_list->IdxBuffer.Size > 0) ? draw_list->IdxBuffer.Data : NULL;
char buf[300];
ImFormatString(buf, IM_ARRAYSIZE(buf), "Draw %4d triangles, tex 0x%p, clip_rect (%4.0f,%4.0f)-(%4.0f,%4.0f)",
pcmd->ElemCount/3, (void*)(intptr_t)pcmd->TextureId, pcmd->ClipRect.x, pcmd->ClipRect.y, pcmd->ClipRect.z, pcmd->ClipRect.w);
ImFormatString(buf, IM_ARRAYSIZE(buf), "DrawCmd: %4d triangles, Tex 0x%p, ClipRect (%4.0f,%4.0f)-(%4.0f,%4.0f)",
pcmd->ElemCount/3, (void*)(intptr_t)pcmd->TextureId,
pcmd->ClipRect.x, pcmd->ClipRect.y, pcmd->ClipRect.z, pcmd->ClipRect.w);
bool pcmd_node_open = ImGui::TreeNode((void*)(pcmd - draw_list->CmdBuffer.begin()), "%s", buf);
if (show_drawcmd_clip_rects && fg_draw_list && ImGui::IsItemHovered())
if (show_drawcmd_details && fg_draw_list && ImGui::IsItemHovered())
{
ImRect clip_rect = pcmd->ClipRect;
ImRect vtxs_rect;
for (int i = elem_offset; i < elem_offset + (int)pcmd->ElemCount; i++)
for (unsigned int i = elem_offset; i < elem_offset + (int)pcmd->ElemCount; i++)
vtxs_rect.Add(draw_list->VtxBuffer[idx_buffer ? idx_buffer[i] : i].pos);
clip_rect.Floor(); fg_draw_list->AddRect(clip_rect.Min, clip_rect.Max, IM_COL32(255,0,255,255));
vtxs_rect.Floor(); fg_draw_list->AddRect(vtxs_rect.Min, vtxs_rect.Max, IM_COL32(255,255,0,255));
fg_draw_list->AddRect(ImFloor(clip_rect.Min), ImFloor(clip_rect.Max), IM_COL32(255,0,255,255));
fg_draw_list->AddRect(ImFloor(vtxs_rect.Min), ImFloor(vtxs_rect.Max), IM_COL32(255,255,0,255));
}
if (!pcmd_node_open)
continue;
// Calculate approximate coverage area (touched pixel count)
// This will be in pixels squared as long there's no post-scaling happening to the renderer output.
float total_area = 0.0f;
for (unsigned int base_idx = elem_offset; base_idx < (elem_offset + pcmd->ElemCount); base_idx += 3)
{
ImVec2 triangle[3];
for (int n = 0; n < 3; n++)
triangle[n] = draw_list->VtxBuffer[idx_buffer ? idx_buffer[base_idx + n] : (base_idx + n)].pos;
total_area += ImTriangleArea(triangle[0], triangle[1], triangle[2]);
}
// Display vertex information summary. Hover to get all triangles drawn in wire-frame
ImFormatString(buf, IM_ARRAYSIZE(buf), "Mesh: ElemCount: %d, VtxOffset: +%d, IdxOffset: +%d, Area: ~%0.f px", pcmd->ElemCount, pcmd->VtxOffset, pcmd->IdxOffset, total_area);
ImGui::Selectable(buf);
if (fg_draw_list && ImGui::IsItemHovered() && show_drawcmd_details)
{
// Draw wire-frame version of everything
ImDrawListFlags backup_flags = fg_draw_list->Flags;
fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines is more readable for very large and thin triangles.
ImRect clip_rect = pcmd->ClipRect;
fg_draw_list->AddRect(ImFloor(clip_rect.Min), ImFloor(clip_rect.Max), IM_COL32(255, 0, 255, 255));
for (unsigned int base_idx = elem_offset; base_idx < (elem_offset + pcmd->ElemCount); base_idx += 3)
{
ImVec2 triangle[3];
for (int n = 0; n < 3; n++)
triangle[n] = draw_list->VtxBuffer[idx_buffer ? idx_buffer[base_idx + n] : (base_idx + n)].pos;
fg_draw_list->AddPolyline(triangle, 3, IM_COL32(255, 255, 0, 255), true, 1.0f);
}
fg_draw_list->Flags = backup_flags;
}
// Display individual triangles/vertices. Hover on to get the corresponding triangle highlighted.
ImGui::Text("ElemCount: %d, ElemCount/3: %d, VtxOffset: +%d, IdxOffset: +%d", pcmd->ElemCount, pcmd->ElemCount/3, pcmd->VtxOffset, pcmd->IdxOffset);
ImGuiListClipper clipper(pcmd->ElemCount/3); // Manually coarse clip our print out of individual vertices to save CPU, only items that may be visible.
while (clipper.Step())
for (int prim = clipper.DisplayStart, idx_i = elem_offset + clipper.DisplayStart*3; prim < clipper.DisplayEnd; prim++)
{
char *buf_p = buf, *buf_end = buf + IM_ARRAYSIZE(buf);
ImVec2 triangles_pos[3];
ImVec2 triangle[3];
for (int n = 0; n < 3; n++, idx_i++)
{
int vtx_i = idx_buffer ? idx_buffer[idx_i] : idx_i;
ImDrawVert& v = draw_list->VtxBuffer[vtx_i];
triangles_pos[n] = v.pos;
ImDrawVert& v = draw_list->VtxBuffer[idx_buffer ? idx_buffer[idx_i] : idx_i];
triangle[n] = v.pos;
buf_p += ImFormatString(buf_p, buf_end - buf_p, "%s %04d: pos (%8.2f,%8.2f), uv (%.6f,%.6f), col %08X\n",
(n == 0) ? "elem" : " ", idx_i, v.pos.x, v.pos.y, v.uv.x, v.uv.y, v.col);
(n == 0) ? "Vert:" : " ", idx_i, v.pos.x, v.pos.y, v.uv.x, v.uv.y, v.col);
}
ImGui::Selectable(buf, false);
if (fg_draw_list && ImGui::IsItemHovered())
{
ImDrawListFlags backup_flags = fg_draw_list->Flags;
fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines at is more readable for very large and thin triangles.
fg_draw_list->AddPolyline(triangles_pos, 3, IM_COL32(255,255,0,255), true, 1.0f);
fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines is more readable for very large and thin triangles.
fg_draw_list->AddPolyline(triangle, 3, IM_COL32(255,255,0,255), true, 1.0f);
fg_draw_list->Flags = backup_flags;
}
}
@ -15031,7 +15090,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
ImGui::PushID(tab);
if (ImGui::SmallButton("<")) { TabBarQueueChangeTabOrder(tab_bar, tab, -1); } ImGui::SameLine(0, 2);
if (ImGui::SmallButton(">")) { TabBarQueueChangeTabOrder(tab_bar, tab, +1); } ImGui::SameLine();
ImGui::Text("%02d%c Tab 0x%08X '%s'", tab_n, (tab->ID == tab_bar->SelectedTabId) ? '*' : ' ', tab->ID, tab->Window ? tab->Window->Name : "N/A");
ImGui::Text("%02d%c Tab 0x%08X '%s'", tab_n, (tab->ID == tab_bar->SelectedTabId) ? '*' : ' ', tab->ID, (tab->Window || tab->NameOffset != -1) ? tab_bar->GetTabName(tab) : "");
ImGui::PopID();
}
ImGui::TreePop();
@ -15195,7 +15254,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
}
ImGui::Unindent();
}
ImGui::Checkbox("Show clipping rectangle when hovering ImDrawCmd node", &show_drawcmd_clip_rects);
ImGui::Checkbox("Show details when hovering ImDrawCmd node", &show_drawcmd_details);
ImGui::TreePop();
}