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Merge branch 'master' into 2016-02-colorpicker

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omar 2017-05-01 12:37:34 +02:00
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25
README.md
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@ -3,9 +3,13 @@ dear imgui,
[![Build Status](https://travis-ci.org/ocornut/imgui.svg?branch=master)](https://travis-ci.org/ocornut/imgui) [![Build Status](https://travis-ci.org/ocornut/imgui.svg?branch=master)](https://travis-ci.org/ocornut/imgui)
[![Coverity Status](https://scan.coverity.com/projects/4720/badge.svg)](https://scan.coverity.com/projects/4720) [![Coverity Status](https://scan.coverity.com/projects/4720/badge.svg)](https://scan.coverity.com/projects/4720)
(This library is free and will stay free, but needs your support to sustain its development. There are lots of desirable new features and maintenance to do. If you work for a company using ImGui or have the means to do so, please consider financial support) (This library is free and will stay free, but needs your support to sustain its development. There are lots of desirable new features and maintenance to do. If you work for a company using ImGui or have the means to do so, please consider financial support. I can invoice for private support, custom development etc. E-mail: omarcornut at gmail)
[![Patreon](https://cloud.githubusercontent.com/assets/8225057/5990484/70413560-a9ab-11e4-8942-1a63607c0b00.png)](http://www.patreon.com/imgui) [![PayPal](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=5Q73FPZ9C526U) Monthly donations via Patreon:
<br>[![Patreon](https://cloud.githubusercontent.com/assets/8225057/5990484/70413560-a9ab-11e4-8942-1a63607c0b00.png)](http://www.patreon.com/imgui)
One-off donations via PayPal:
<br>[![PayPal](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=5Q73FPZ9C526U)
dear imgui (AKA ImGui), is a bloat-free graphical user interface library for C++. It outputs optimized vertex buffers that you can render anytime in your 3D-pipeline enabled application. It is fast, portable, renderer agnostic and self-contained (no external dependencies). dear imgui (AKA ImGui), is a bloat-free graphical user interface library for C++. It outputs optimized vertex buffers that you can render anytime in your 3D-pipeline enabled application. It is fast, portable, renderer agnostic and self-contained (no external dependencies).
@ -33,9 +37,9 @@ Your code passes mouse/keyboard inputs and settings to ImGui (see example applic
ImGui outputs vertex buffers and simple command-lists that you can render in your application. The number of draw calls and state changes is typically very small. Because it doesn't know or touch graphics state directly, you can call ImGui commands anywhere in your code (e.g. in the middle of a running algorithm, or in the middle of your own rendering process). Refer to the sample applications in the examples/ folder for instructions on how to integrate ImGui with your existing codebase. ImGui outputs vertex buffers and simple command-lists that you can render in your application. The number of draw calls and state changes is typically very small. Because it doesn't know or touch graphics state directly, you can call ImGui commands anywhere in your code (e.g. in the middle of a running algorithm, or in the middle of your own rendering process). Refer to the sample applications in the examples/ folder for instructions on how to integrate ImGui with your existing codebase.
_A common misunderstanding is to think that immediate mode gui == immediate mode rendering, which usually implies hammering your driver/GPU with a bunch of inefficient draw calls and state changes, as the gui functions as called by the user. This is NOT what Dear ImGui does. Dear ImGui outputs vertex buffers and a small list of draw calls batches. It never touches your GPU directly. The draw call batches are decently optimal and you can render them later, in your app or even remotely._ _A common misunderstanding is to think that immediate mode gui == immediate mode rendering, which usually implies hammering your driver/GPU with a bunch of inefficient draw calls and state changes, as the gui functions are called by the user. This is NOT what Dear ImGui does. Dear ImGui outputs vertex buffers and a small list of draw calls batches. It never touches your GPU directly. The draw call batches are decently optimal and you can render them later, in your app or even remotely._
ImGui allows you create elaborate tools as well as very short-lived ones. On the extreme side of short-liveness: using the Edit&Continue feature of modern compilers you can add a few widgets to tweaks variables while your application is running, and remove the code a minute later! ImGui is not just for tweaking values. You can use it to trace a running algorithm by just emitting text commands. You can use it along with your own reflection data to browse your dataset live. You can use it to expose the internals of a subsystem in your engine, to create a logger, an inspection tool, a profiler, a debugger, etc. ImGui allows you create elaborate tools as well as very short-lived ones. On the extreme side of short-liveness: using the Edit&Continue feature of modern compilers you can add a few widgets to tweaks variables while your application is running, and remove the code a minute later! ImGui is not just for tweaking values. You can use it to trace a running algorithm by just emitting text commands. You can use it along with your own reflection data to browse your dataset live. You can use it to expose the internals of a subsystem in your engine, to create a logger, an inspection tool, a profiler, a debugger, an entire game making editor/framework, etc.
Binaries/Demo Binaries/Demo
------------- -------------
@ -69,6 +73,7 @@ Frameworks:
- Cinder backend for dear imgui https://github.com/simongeilfus/Cinder-ImGui - Cinder backend for dear imgui https://github.com/simongeilfus/Cinder-ImGui
- FlexGUI: Flexium/SFML backend for dear imgui https://github.com/DXsmiley/FlexGUI - FlexGUI: Flexium/SFML backend for dear imgui https://github.com/DXsmiley/FlexGUI
- IrrIMGUI: Irrlicht backend for dear imgui https://github.com/ZahlGraf/IrrIMGUI - IrrIMGUI: Irrlicht backend for dear imgui https://github.com/ZahlGraf/IrrIMGUI
- UnrealEngine_ImGui: Unreal Engine 4 backend for dear imgui https://github.com/sronsse/UnrealEngine_ImGui
- LÖVE backend for dear imgui https://github.com/slages/love-imgui - LÖVE backend for dear imgui https://github.com/slages/love-imgui
- Ogre backend for dear imgui https://bitbucket.org/LMCrashy/ogreimgui/src - Ogre backend for dear imgui https://bitbucket.org/LMCrashy/ogreimgui/src
- ofxImGui: openFrameworks backend for dear imgui https://github.com/jvcleave/ofxImGui - ofxImGui: openFrameworks backend for dear imgui https://github.com/jvcleave/ofxImGui
@ -178,18 +183,22 @@ This is [LumixEngine](https://github.com/nem0/LumixEngine) with a minor skinning
<b>Why using C++ (as opposed to C)?</b> <b>Why using C++ (as opposed to C)?</b>
ImGui takes advantage of a few C++ features for convenience but nothing anywhere Boost-insanity/quagmire. In particular, function overloading and default parameters are used to make the API easier to use and code more terse. Doing so I believe the API is sitting on a sweet spot and giving up on those features would make the API more cumbersome. Other features such as namespace, constructors and templates (in the case of the ImVector<> class) are also relied on as a convenience but could be removed. ImGui takes advantage of a few C++ languages features for convenience but nothing anywhere Boost-insanity/quagmire. ImGui doesn't use any C++ header file. Language-wise, function overloading and default parameters are used to make the API easier to use and code more terse. Doing so I believe the API is sitting on a sweet spot and giving up on those features would make the API more cumbersome. Other features such as namespace, constructors and templates (in the case of the ImVector<> class) are also relied on as a convenience.
There is an unofficial but reasonably maintained [c-api for ImGui](https://github.com/Extrawurst/cimgui) by Stephan Dilly. I would suggest using your target language functionality to try replicating the function overloading and default parameters used in C++ else the API may be harder to use. It was really designed with C++ in mind and may not make the same amount of sense with another language. Also see [Links](https://github.com/ocornut/imgui/wiki/Links) for third-party bindings to other languages. There is an unofficial but reasonably maintained [c-api for ImGui](https://github.com/Extrawurst/cimgui) by Stephan Dilly. I would suggest using your target language functionality to try replicating the function overloading and default parameters used in C++ else the API may be harder to use. It was really designed with C++ in mind and may not make the same amount of sense with another language. Also see [Links](https://github.com/ocornut/imgui/wiki/Links) for third-party bindings to other languages.
Donate Donate
------ ------
<b>Can I donate to support the development of ImGui?</b> <b>How can I help financing further development of Dear ImGui?</b>
[![Patreon](https://cloud.githubusercontent.com/assets/8225057/5990484/70413560-a9ab-11e4-8942-1a63607c0b00.png)](http://www.patreon.com/imgui) [![PayPal](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=5Q73FPZ9C526U) Monthly donations via Patreon:
<br>[![Patreon](https://cloud.githubusercontent.com/assets/8225057/5990484/70413560-a9ab-11e4-8942-1a63607c0b00.png)](http://www.patreon.com/imgui)
I'm currently an independent developer and your contributions are useful. I have setup an [**ImGui Patreon page**](http://www.patreon.com/imgui) if you want to donate and enable me to spend more time improving the library. If your company uses ImGui please consider making a contribution. One-off donations are also greatly appreciated. I am available for hire to work on or with ImGui. Thanks! One-off donations via PayPal:
<br>[![PayPal](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=5Q73FPZ9C526U)
Your contributions are keeping the library alive. For end-users, I have setup an [**ImGui Patreon page**](http://www.patreon.com/imgui) if you want to donate and enable me to spend more time improving the library. If your company uses ImGui please consider making a contribution. One-off donations are also greatly appreciated. I can invoice for private support, custom development or whatever makes more sense in a given context. I am available for hire to work on or with ImGui. Please e-mail omarcornut at gmail for details. Thanks!
Credits Credits
------- -------

18
examples/README.txt
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@ -8,10 +8,11 @@ Third party languages and frameworks bindings: https://github.com/ocornut/imgui/
TL;DR; TL;DR;
- Newcomers, read 'PROGRAMMER GUIDE' in imgui.cpp for notes on how to setup ImGui in your codebase. - Newcomers, read 'PROGRAMMER GUIDE' in imgui.cpp for notes on how to setup ImGui in your codebase.
- Refer to 'opengl2_example' to LEARN how the library is setup, it is the simplest one. - To LEARN how the library is setup, you may refer to 'opengl2_example' because is the simplest one.
The other examples requires more boilerplate and are harder to read. The other examples requires more boilerplate and are harder to read.
- If you are using OpenGL in your application, probably use an opengl3_xxx backend. However, USE 'opengl3_example' in your application if you are using any modern OpenGL3+ calls.
Mixing old fixed pipeline OpenGL2 and programmable pipeline OpenGL3+ isn't well supported by drivers. Mixing old fixed pipeline OpenGL2 and programmable pipeline OpenGL3+ isn't well supported by some drivers.
If you are not sure, in doubt, use 'opengl3_example'.
- If you are using of the backend provided here, so you can copy the imgui_impl_xxx.cpp/h files - If you are using of the backend provided here, so you can copy the imgui_impl_xxx.cpp/h files
to your project and use them unmodified. to your project and use them unmodified.
- If you have your own engine, you probably want to start from one of the OpenGL example and adapt it to - If you have your own engine, you probably want to start from one of the OpenGL example and adapt it to
@ -44,14 +45,17 @@ Also note that some setup or GPU drivers may be causing extra lag (possibly by e
leaving you with no option but sadness/anger (Intel GPU drivers were reported as such). leaving you with no option but sadness/anger (Intel GPU drivers were reported as such).
opengl2_example/ opengl2_example/
GLFW + OpenGL example (old fixed pipeline). GLFW + OpenGL example (old, fixed graphic pipeline).
This is simple to read. Prefer following this example to learn how ImGui works! This is only provided as a reference to learn how ImGui integration works, because it is easier to read.
However, if your code is using GL3+ context, using this may confuse your driver. Please use the GL3 example below.
(You might be able to use this code in a GL3/GL4 context but make sure you disable the programmable (You might be able to use this code in a GL3/GL4 context but make sure you disable the programmable
pipeline by calling "glUseProgram(0)" before ImGui::Render.) pipeline by calling "glUseProgram(0)" before ImGui::Render. It appears that many librairies and drivers
are having issues mixing GL2 calls and newer GL3/GL4 calls. So it isn't recommended that you use that.)
opengl3_example/ opengl3_example/
GLFW + OpenGL example (programmable pipeline, binding modern functions with GL3W). GLFW + OpenGL example (programmable pipeline, binding modern functions with GL3W).
This uses more modern OpenGL calls and custom shaders. It's more messy. This uses more modern OpenGL calls and custom shaders.
Prefer using that if you are using modern OpenGL3/4 in your application.
directx9_example/ directx9_example/
DirectX9 example, Windows only. DirectX9 example, Windows only.

1
examples/apple_example/imguiex-ios/imgui_impl_ios.mm
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@ -617,6 +617,7 @@ void ImGui_ClipboardCallback(uSynergyCookie cookie, enum uSynergyClipboardFormat
static void ImGui_ImplIOS_RenderDrawLists (ImDrawData *draw_data) static void ImGui_ImplIOS_RenderDrawLists (ImDrawData *draw_data)
{ {
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled
// FIXME: Backport changes from imgui_impl_glfw_gl3.cpp
GLint last_program, last_texture; GLint last_program, last_texture;
glGetIntegerv(GL_CURRENT_PROGRAM, &last_program); glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture); glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);

5
examples/opengl2_example/imgui_impl_glfw.cpp
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@ -1,9 +1,10 @@
// ImGui GLFW binding with OpenGL // ImGui GLFW binding with OpenGL
// In this binding, ImTextureID is used to store an OpenGL 'GLuint' texture identifier. Read the FAQ about ImTextureID in imgui.cpp. // In this binding, ImTextureID is used to store an OpenGL 'GLuint' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
// If your context is GL3/GL3 then prefer using the code in opengl3_example. // If your context or own usage of OpenGL involve anything GL3/GL4, prefer using the code in opengl3_example.
// If you are not sure what that means, prefer using the code in opengl3_example.
// You *might* use this code with a GL3/GL4 context but make sure you disable the programmable pipeline by calling "glUseProgram(0)" before ImGui::Render(). // You *might* use this code with a GL3/GL4 context but make sure you disable the programmable pipeline by calling "glUseProgram(0)" before ImGui::Render().
// We cannot do that from GL2 code because the function doesn't exist. // We cannot do that from GL2 code because the function doesn't exist. Mixing GL2 calls and GL3/GL4 calls is giving trouble to many librairies/drivers.
// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this. // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown(). // If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().

16
examples/opengl3_example/imgui_impl_glfw_gl3.cpp
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@ -44,18 +44,21 @@ void ImGui_ImplGlfwGL3_RenderDrawLists(ImDrawData* draw_data)
draw_data->ScaleClipRects(io.DisplayFramebufferScale); draw_data->ScaleClipRects(io.DisplayFramebufferScale);
// Backup GL state // Backup GL state
GLint last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, &last_active_texture);
glActiveTexture(GL_TEXTURE0);
GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program); GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture); GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
GLint last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, &last_active_texture);
GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer); GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer); GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array); GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
GLint last_blend_src; glGetIntegerv(GL_BLEND_SRC, &last_blend_src); GLint last_blend_src_rgb; glGetIntegerv(GL_BLEND_SRC_RGB, &last_blend_src_rgb);
GLint last_blend_dst; glGetIntegerv(GL_BLEND_DST, &last_blend_dst); GLint last_blend_dst_rgb; glGetIntegerv(GL_BLEND_DST_RGB, &last_blend_dst_rgb);
GLint last_blend_src_alpha; glGetIntegerv(GL_BLEND_SRC_ALPHA, &last_blend_src_alpha);
GLint last_blend_dst_alpha; glGetIntegerv(GL_BLEND_DST_ALPHA, &last_blend_dst_alpha);
GLint last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, &last_blend_equation_rgb); GLint last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, &last_blend_equation_rgb);
GLint last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &last_blend_equation_alpha); GLint last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &last_blend_equation_alpha);
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport); GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box); GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
GLboolean last_enable_blend = glIsEnabled(GL_BLEND); GLboolean last_enable_blend = glIsEnabled(GL_BLEND);
GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE); GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST); GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
@ -68,7 +71,6 @@ void ImGui_ImplGlfwGL3_RenderDrawLists(ImDrawData* draw_data)
glDisable(GL_CULL_FACE); glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST); glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST); glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
// Setup viewport, orthographic projection matrix // Setup viewport, orthographic projection matrix
glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height); glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
@ -114,13 +116,13 @@ void ImGui_ImplGlfwGL3_RenderDrawLists(ImDrawData* draw_data)
// Restore modified GL state // Restore modified GL state
glUseProgram(last_program); glUseProgram(last_program);
glActiveTexture(last_active_texture);
glBindTexture(GL_TEXTURE_2D, last_texture); glBindTexture(GL_TEXTURE_2D, last_texture);
glActiveTexture(last_active_texture);
glBindVertexArray(last_vertex_array); glBindVertexArray(last_vertex_array);
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer); glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha); glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
glBlendFunc(last_blend_src, last_blend_dst); glBlendFuncSeparate(last_blend_src_rgb, last_blend_dst_rgb, last_blend_src_alpha, last_blend_dst_alpha);
if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND); if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE); if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE);
if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST); if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);

3
examples/sdl_opengl2_example/imgui_impl_sdl.cpp
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@ -1,6 +1,9 @@
// ImGui SDL2 binding with OpenGL // ImGui SDL2 binding with OpenGL
// In this binding, ImTextureID is used to store an OpenGL 'GLuint' texture identifier. Read the FAQ about ImTextureID in imgui.cpp. // In this binding, ImTextureID is used to store an OpenGL 'GLuint' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
// If your context or own usage of OpenGL involve anything GL3/GL4, prefer using the code in sdl_opengl3_example.
// If you are not sure what that means, prefer using the code in sdl_opengl3_example.
// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this. // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown(). // If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp. // If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.

22
examples/sdl_opengl3_example/imgui_impl_sdl_gl3.cpp
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@ -38,18 +38,21 @@ void ImGui_ImplSdlGL3_RenderDrawLists(ImDrawData* draw_data)
draw_data->ScaleClipRects(io.DisplayFramebufferScale); draw_data->ScaleClipRects(io.DisplayFramebufferScale);
// Backup GL state // Backup GL state
GLint last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, &last_active_texture);
glActiveTexture(GL_TEXTURE0);
GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program); GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture); GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
GLint last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, &last_active_texture);
GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer); GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer); GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array); GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
GLint last_blend_src; glGetIntegerv(GL_BLEND_SRC, &last_blend_src); GLint last_blend_src_rgb; glGetIntegerv(GL_BLEND_SRC_RGB, &last_blend_src_rgb);
GLint last_blend_dst; glGetIntegerv(GL_BLEND_DST, &last_blend_dst); GLint last_blend_dst_rgb; glGetIntegerv(GL_BLEND_DST_RGB, &last_blend_dst_rgb);
GLint last_blend_src_alpha; glGetIntegerv(GL_BLEND_SRC_ALPHA, &last_blend_src_alpha);
GLint last_blend_dst_alpha; glGetIntegerv(GL_BLEND_DST_ALPHA, &last_blend_dst_alpha);
GLint last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, &last_blend_equation_rgb); GLint last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, &last_blend_equation_rgb);
GLint last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &last_blend_equation_alpha); GLint last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &last_blend_equation_alpha);
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport); GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box); GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
GLboolean last_enable_blend = glIsEnabled(GL_BLEND); GLboolean last_enable_blend = glIsEnabled(GL_BLEND);
GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE); GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST); GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
@ -62,9 +65,8 @@ void ImGui_ImplSdlGL3_RenderDrawLists(ImDrawData* draw_data)
glDisable(GL_CULL_FACE); glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST); glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST); glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
// Setup orthographic projection matrix // Setup viewport, orthographic projection matrix
glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height); glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
const float ortho_projection[4][4] = const float ortho_projection[4][4] =
{ {
@ -84,10 +86,10 @@ void ImGui_ImplSdlGL3_RenderDrawLists(ImDrawData* draw_data)
const ImDrawIdx* idx_buffer_offset = 0; const ImDrawIdx* idx_buffer_offset = 0;
glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle); glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.Size * sizeof(ImDrawVert), (GLvoid*)cmd_list->VtxBuffer.Data, GL_STREAM_DRAW); glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.Size * sizeof(ImDrawVert), (const GLvoid*)cmd_list->VtxBuffer.Data, GL_STREAM_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx), (GLvoid*)cmd_list->IdxBuffer.Data, GL_STREAM_DRAW); glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx), (const GLvoid*)cmd_list->IdxBuffer.Data, GL_STREAM_DRAW);
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{ {
@ -108,13 +110,13 @@ void ImGui_ImplSdlGL3_RenderDrawLists(ImDrawData* draw_data)
// Restore modified GL state // Restore modified GL state
glUseProgram(last_program); glUseProgram(last_program);
glActiveTexture(last_active_texture);
glBindTexture(GL_TEXTURE_2D, last_texture); glBindTexture(GL_TEXTURE_2D, last_texture);
glActiveTexture(last_active_texture);
glBindVertexArray(last_vertex_array); glBindVertexArray(last_vertex_array);
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer); glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha); glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
glBlendFunc(last_blend_src, last_blend_dst); glBlendFuncSeparate(last_blend_src_rgb, last_blend_dst_rgb, last_blend_src_alpha, last_blend_dst_alpha);
if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND); if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE); if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE);
if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST); if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);

3
imconfig.h
View File

@ -43,6 +43,9 @@
operator MyVec4() const { return MyVec4(x,y,z,w); } operator MyVec4() const { return MyVec4(x,y,z,w); }
*/ */
//---- Use 32-bit vertex indices (instead of default: 16-bit) to allow meshes with more than 64K vertices
//#define ImDrawIdx unsigned int
//---- Tip: You can add extra functions within the ImGui:: namespace, here or in your own headers files. //---- Tip: You can add extra functions within the ImGui:: namespace, here or in your own headers files.
//---- e.g. create variants of the ImGui::Value() helper for your low-level math types, or your own widgets/helpers. //---- e.g. create variants of the ImGui::Value() helper for your low-level math types, or your own widgets/helpers.
/* /*

24
imgui.cpp
View File

@ -154,6 +154,7 @@
- 2016/08/xx (1.XX) - removed ColorEditMode() and ImGuiColorEditMode in favor of ImGuiColorEditFlags and parameters to ColorEdit*() functions - 2016/08/xx (1.XX) - removed ColorEditMode() and ImGuiColorEditMode in favor of ImGuiColorEditFlags and parameters to ColorEdit*() functions
replaced ColorEdit4() third parameter 'bool show_alpha=true' to 'ImGuiColorEditFlags flags=0x01' where ImGuiColorEditFlags_Alpha=0x01 for dodgy compatibility replaced ColorEdit4() third parameter 'bool show_alpha=true' to 'ImGuiColorEditFlags flags=0x01' where ImGuiColorEditFlags_Alpha=0x01 for dodgy compatibility
- 2017/05/01 (1.50) - Renamed ImDrawList::PathFill() to ImDrawList::PathFillConvex() for clarity.
- 2016/11/06 (1.50) - BeginChild(const char*) now applies the stack id to the provided label, consistently with other functions as it should always have been. It shouldn't affect you unless (extremely unlikely) you were appending multiple times to a same child from different locations of the stack id. If that's the case, generate an id with GetId() and use it instead of passing string to BeginChild(). - 2016/11/06 (1.50) - BeginChild(const char*) now applies the stack id to the provided label, consistently with other functions as it should always have been. It shouldn't affect you unless (extremely unlikely) you were appending multiple times to a same child from different locations of the stack id. If that's the case, generate an id with GetId() and use it instead of passing string to BeginChild().
- 2016/10/15 (1.50) - avoid 'void* user_data' parameter to io.SetClipboardTextFn/io.GetClipboardTextFn pointers. We pass io.ClipboardUserData to it. - 2016/10/15 (1.50) - avoid 'void* user_data' parameter to io.SetClipboardTextFn/io.GetClipboardTextFn pointers. We pass io.ClipboardUserData to it.
- 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. - 2016/09/25 (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.
@ -3721,12 +3722,12 @@ static void CheckStacksSize(ImGuiWindow* window, bool write)
// NOT checking: DC.ItemWidth, DC.AllowKeyboardFocus, DC.ButtonRepeat, DC.TextWrapPos (per window) to allow user to conveniently push once and not pop (they are cleared on Begin) // NOT checking: DC.ItemWidth, DC.AllowKeyboardFocus, DC.ButtonRepeat, DC.TextWrapPos (per window) to allow user to conveniently push once and not pop (they are cleared on Begin)
ImGuiContext& g = *GImGui; ImGuiContext& g = *GImGui;
int* p_backup = &window->DC.StackSizesBackup[0]; int* p_backup = &window->DC.StackSizesBackup[0];
{ int current = window->IDStack.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "PushID/PopID Mismatch!"); p_backup++; } // User forgot PopID() { int current = window->IDStack.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "PushID/PopID or TreeNode/TreePop Mismatch!"); p_backup++; } // Too few or too many PopID()/TreePop()
{ int current = window->DC.GroupStack.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "BeginGroup/EndGroup Mismatch!"); p_backup++; } // User forgot EndGroup() { int current = window->DC.GroupStack.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "BeginGroup/EndGroup Mismatch!"); p_backup++; } // Too few or too many EndGroup()
{ int current = g.CurrentPopupStack.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "BeginMenu/EndMenu or BeginPopup/EndPopup Mismatch"); p_backup++; }// User forgot EndPopup()/EndMenu() { int current = g.CurrentPopupStack.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "BeginMenu/EndMenu or BeginPopup/EndPopup Mismatch"); p_backup++;}// Too few or too many EndMenu()/EndPopup()
{ int current = g.ColorModifiers.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "PushStyleColor/PopStyleColor Mismatch!"); p_backup++; } // User forgot PopStyleColor() { int current = g.ColorModifiers.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "PushStyleColor/PopStyleColor Mismatch!"); p_backup++; } // Too few or too many PopStyleColor()
{ int current = g.StyleModifiers.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "PushStyleVar/PopStyleVar Mismatch!"); p_backup++; } // User forgot PopStyleVar() { int current = g.StyleModifiers.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "PushStyleVar/PopStyleVar Mismatch!"); p_backup++; } // Too few or too many PopStyleVar()
{ int current = g.FontStack.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "PushFont/PopFont Mismatch!"); p_backup++; } // User forgot PopFont() { int current = g.FontStack.Size; if (write) *p_backup = current; else IM_ASSERT(*p_backup == current && "PushFont/PopFont Mismatch!"); p_backup++; } // Too few or too many PopFont()
IM_ASSERT(p_backup == window->DC.StackSizesBackup + IM_ARRAYSIZE(window->DC.StackSizesBackup)); IM_ASSERT(p_backup == window->DC.StackSizesBackup + IM_ARRAYSIZE(window->DC.StackSizesBackup));
} }
@ -4123,12 +4124,15 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
} }
else if (flags & ImGuiWindowFlags_ChildMenu) else if (flags & ImGuiWindowFlags_ChildMenu)
{ {
// Child menus typically request _any_ position within the parent menu item, and then our FindBestPopupWindowPos() function will move the new menu outside the parent bounds.
// This is how we end up with child menus appearing (most-commonly) on the right of the parent menu.
IM_ASSERT(window_pos_set_by_api); IM_ASSERT(window_pos_set_by_api);
float horizontal_overlap = style.ItemSpacing.x; // We want some overlap to convey the relative depth of each popup (currently the amount of overlap it is hard-coded to style.ItemSpacing.x, may need to introduce another style value).
ImRect rect_to_avoid; ImRect rect_to_avoid;
if (parent_window->DC.MenuBarAppending) if (parent_window->DC.MenuBarAppending)
rect_to_avoid = ImRect(-FLT_MAX, parent_window->Pos.y + parent_window->TitleBarHeight(), FLT_MAX, parent_window->Pos.y + parent_window->TitleBarHeight() + parent_window->MenuBarHeight()); rect_to_avoid = ImRect(-FLT_MAX, parent_window->Pos.y + parent_window->TitleBarHeight(), FLT_MAX, parent_window->Pos.y + parent_window->TitleBarHeight() + parent_window->MenuBarHeight());
else else
rect_to_avoid = ImRect(parent_window->Pos.x + style.ItemSpacing.x, -FLT_MAX, parent_window->Pos.x + parent_window->Size.x - style.ItemSpacing.x - parent_window->ScrollbarSizes.x, FLT_MAX); // We want some overlap to convey the relative depth of each popup (here hard-coded to 4) rect_to_avoid = ImRect(parent_window->Pos.x + horizontal_overlap, -FLT_MAX, parent_window->Pos.x + parent_window->Size.x - horizontal_overlap - parent_window->ScrollbarSizes.x, FLT_MAX);
window->PosFloat = FindBestPopupWindowPos(window->PosFloat, window->Size, &window->AutoPosLastDirection, rect_to_avoid); window->PosFloat = FindBestPopupWindowPos(window->PosFloat, window->Size, &window->AutoPosLastDirection, rect_to_avoid);
} }
else if ((flags & ImGuiWindowFlags_Popup) != 0 && !window_pos_set_by_api && window_appearing_after_being_hidden) else if ((flags & ImGuiWindowFlags_Popup) != 0 && !window_pos_set_by_api && window_appearing_after_being_hidden)
@ -4283,7 +4287,7 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
window->DrawList->PathLineTo(br + ImVec2(-resize_corner_size, -window->BorderSize)); window->DrawList->PathLineTo(br + ImVec2(-resize_corner_size, -window->BorderSize));
window->DrawList->PathLineTo(br + ImVec2(-window->BorderSize, -resize_corner_size)); window->DrawList->PathLineTo(br + ImVec2(-window->BorderSize, -resize_corner_size));
window->DrawList->PathArcToFast(ImVec2(br.x - window_rounding - window->BorderSize, br.y - window_rounding - window->BorderSize), window_rounding, 0, 3); window->DrawList->PathArcToFast(ImVec2(br.x - window_rounding - window->BorderSize, br.y - window_rounding - window->BorderSize), window_rounding, 0, 3);
window->DrawList->PathFill(resize_col); window->DrawList->PathFillConvex(resize_col);
} }
// Borders // Borders
@ -4432,7 +4436,8 @@ void ImGui::End()
ImGuiContext& g = *GImGui; ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow; ImGuiWindow* window = g.CurrentWindow;
Columns(1, "#CloseColumns"); if (window->DC.ColumnsCount != 1) // close columns set if any is open
Columns(1, "#CLOSECOLUMNS");
PopClipRect(); // inner window clip rectangle PopClipRect(); // inner window clip rectangle
// Stop logging // Stop logging
@ -8862,6 +8867,7 @@ bool ImGui::BeginMenu(const char* label, bool enabled)
if (menuset_is_open) if (menuset_is_open)
g.FocusedWindow = window; g.FocusedWindow = window;
// The reference position stored in popup_pos will be used by Begin() to find a suitable position for the child menu (using FindBestPopupWindowPos).
ImVec2 popup_pos, pos = window->DC.CursorPos; ImVec2 popup_pos, pos = window->DC.CursorPos;
if (window->DC.LayoutType == ImGuiLayoutType_Horizontal) if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)
{ {

16
imgui.h
View File

@ -522,7 +522,7 @@ enum ImGuiInputTextFlags_
ImGuiInputTextFlags_CallbackAlways = 1 << 8, // Call user function every time. User code may query cursor position, modify text buffer. ImGuiInputTextFlags_CallbackAlways = 1 << 8, // Call user function every time. User code may query cursor position, modify text buffer.
ImGuiInputTextFlags_CallbackCharFilter = 1 << 9, // Call user function to filter character. Modify data->EventChar to replace/filter input, or return 1 to discard character. ImGuiInputTextFlags_CallbackCharFilter = 1 << 9, // Call user function to filter character. Modify data->EventChar to replace/filter input, or return 1 to discard character.
ImGuiInputTextFlags_AllowTabInput = 1 << 10, // Pressing TAB input a '\t' character into the text field ImGuiInputTextFlags_AllowTabInput = 1 << 10, // Pressing TAB input a '\t' character into the text field
ImGuiInputTextFlags_CtrlEnterForNewLine = 1 << 11, // In multi-line mode, allow exiting edition by pressing Enter. Ctrl+Enter to add new line (by default adds new lines with Enter). ImGuiInputTextFlags_CtrlEnterForNewLine = 1 << 11, // In multi-line mode, unfocus with Enter, add new line with Ctrl+Enter (default is opposite: unfocus with Ctrl+Enter, add line with Enter).
ImGuiInputTextFlags_NoHorizontalScroll = 1 << 12, // Disable following the cursor horizontally ImGuiInputTextFlags_NoHorizontalScroll = 1 << 12, // Disable following the cursor horizontally
ImGuiInputTextFlags_AlwaysInsertMode = 1 << 13, // Insert mode ImGuiInputTextFlags_AlwaysInsertMode = 1 << 13, // Insert mode
ImGuiInputTextFlags_ReadOnly = 1 << 14, // Read-only mode ImGuiInputTextFlags_ReadOnly = 1 << 14, // Read-only mode
@ -1024,8 +1024,8 @@ struct ImGuiTextEditCallbackData
int SelectionEnd; // // Read-write int SelectionEnd; // // Read-write
// NB: Helper functions for text manipulation. Calling those function loses selection. // NB: Helper functions for text manipulation. Calling those function loses selection.
void DeleteChars(int pos, int bytes_count); IMGUI_API void DeleteChars(int pos, int bytes_count);
void InsertChars(int pos, const char* text, const char* text_end = NULL); IMGUI_API void InsertChars(int pos, const char* text, const char* text_end = NULL);
bool HasSelection() const { return SelectionStart != SelectionEnd; } bool HasSelection() const { return SelectionStart != SelectionEnd; }
}; };
@ -1054,9 +1054,9 @@ struct ImGuiSizeConstraintCallbackData
#define IM_COL32_A_MASK 0xFF000000 #define IM_COL32_A_MASK 0xFF000000
#endif #endif
#define IM_COL32(R,G,B,A) (((ImU32)(A)<<IM_COL32_A_SHIFT) | ((ImU32)(B)<<IM_COL32_B_SHIFT) | ((ImU32)(G)<<IM_COL32_G_SHIFT) | ((ImU32)(R)<<IM_COL32_R_SHIFT)) #define IM_COL32(R,G,B,A) (((ImU32)(A)<<IM_COL32_A_SHIFT) | ((ImU32)(B)<<IM_COL32_B_SHIFT) | ((ImU32)(G)<<IM_COL32_G_SHIFT) | ((ImU32)(R)<<IM_COL32_R_SHIFT))
#define IM_COL32_WHITE IM_COL32(255,255,255,255) // Opaque white #define IM_COL32_WHITE IM_COL32(255,255,255,255) // Opaque white = 0xFFFFFFFF
#define IM_COL32_BLACK IM_COL32(0,0,0,255) // Opaque black #define IM_COL32_BLACK IM_COL32(0,0,0,255) // Opaque black
#define IM_COL32_BLACK_TRANS IM_COL32(0,0,0,0) // Transparent black #define IM_COL32_BLACK_TRANS IM_COL32(0,0,0,0) // Transparent black = 0x00000000
// ImColor() helper to implicity converts colors to either ImU32 (packed 4x1 byte) or ImVec4 (4x1 float) // ImColor() helper to implicity converts colors to either ImU32 (packed 4x1 byte) or ImVec4 (4x1 float)
// Prefer using IM_COL32() macros if you want a guaranteed compile-time ImU32 for usage with ImDrawList API. // Prefer using IM_COL32() macros if you want a guaranteed compile-time ImU32 for usage with ImDrawList API.
@ -1206,7 +1206,8 @@ struct ImDrawList
IMGUI_API void AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments = 12); IMGUI_API void AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments = 12);
IMGUI_API void AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL); IMGUI_API void AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL);
IMGUI_API void AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL); IMGUI_API void AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL);
IMGUI_API void AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv0 = ImVec2(0,0), const ImVec2& uv1 = ImVec2(1,1), ImU32 col = 0xFFFFFFFF); IMGUI_API void AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a = ImVec2(0,0), const ImVec2& uv_b = ImVec2(1,1), ImU32 col = 0xFFFFFFFF);
IMGUI_API void AddImageQuad(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a = ImVec2(0,0), const ImVec2& uv_b = ImVec2(1,0), const ImVec2& uv_c = ImVec2(1,1), const ImVec2& uv_d = ImVec2(0,1), ImU32 col = 0xFFFFFFFF);
IMGUI_API void AddPolyline(const ImVec2* points, const int num_points, ImU32 col, bool closed, float thickness, bool anti_aliased); IMGUI_API void AddPolyline(const ImVec2* points, const int num_points, ImU32 col, bool closed, float thickness, bool anti_aliased);
IMGUI_API void AddConvexPolyFilled(const ImVec2* points, const int num_points, ImU32 col, bool anti_aliased); IMGUI_API void AddConvexPolyFilled(const ImVec2* points, const int num_points, ImU32 col, bool anti_aliased);
IMGUI_API void AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments = 0); IMGUI_API void AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments = 0);
@ -1215,7 +1216,7 @@ struct ImDrawList
inline void PathClear() { _Path.resize(0); } inline void PathClear() { _Path.resize(0); }
inline void PathLineTo(const ImVec2& pos) { _Path.push_back(pos); } inline void PathLineTo(const ImVec2& pos) { _Path.push_back(pos); }
inline void PathLineToMergeDuplicate(const ImVec2& pos) { if (_Path.Size == 0 || memcmp(&_Path[_Path.Size-1], &pos, 8) != 0) _Path.push_back(pos); } inline void PathLineToMergeDuplicate(const ImVec2& pos) { if (_Path.Size == 0 || memcmp(&_Path[_Path.Size-1], &pos, 8) != 0) _Path.push_back(pos); }
inline void PathFill(ImU32 col) { AddConvexPolyFilled(_Path.Data, _Path.Size, col, true); PathClear(); } inline void PathFillConvex(ImU32 col) { AddConvexPolyFilled(_Path.Data, _Path.Size, col, true); PathClear(); }
inline void PathStroke(ImU32 col, bool closed, float thickness = 1.0f) { AddPolyline(_Path.Data, _Path.Size, col, closed, thickness, true); PathClear(); } inline void PathStroke(ImU32 col, bool closed, float thickness = 1.0f) { AddPolyline(_Path.Data, _Path.Size, col, closed, thickness, true); PathClear(); }
IMGUI_API void PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments = 10); IMGUI_API void PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments = 10);
IMGUI_API void PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12); // Use precomputed angles for a 12 steps circle IMGUI_API void PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12); // Use precomputed angles for a 12 steps circle
@ -1371,6 +1372,7 @@ struct ImFont
ImFontConfig* ConfigData; // // Pointer within ContainerAtlas->ConfigData ImFontConfig* ConfigData; // // Pointer within ContainerAtlas->ConfigData
ImFontAtlas* ContainerAtlas; // // What we has been loaded into ImFontAtlas* ContainerAtlas; // // What we has been loaded into
float Ascent, Descent; // // Ascent: distance from top to bottom of e.g. 'A' [0..FontSize] float Ascent, Descent; // // Ascent: distance from top to bottom of e.g. 'A' [0..FontSize]
int MetricsTotalSurface;// // Total surface in pixels to get an idea of the font rasterization/texture cost (not exact, we approximate the cost of padding between glyphs)
// Methods // Methods
IMGUI_API ImFont(); IMGUI_API ImFont();

3
imgui_demo.cpp
View File

@ -1749,10 +1749,11 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
ImGui::SameLine(); ShowHelpMarker("Note than the default embedded font is NOT meant to be scaled.\n\nFont are currently rendered into bitmaps at a given size at the time of building the atlas. You may oversample them to get some flexibility with scaling. You can also render at multiple sizes and select which one to use at runtime.\n\n(Glimmer of hope: the atlas system should hopefully be rewritten in the future to make scaling more natural and automatic.)"); ImGui::SameLine(); ShowHelpMarker("Note than the default embedded font is NOT meant to be scaled.\n\nFont are currently rendered into bitmaps at a given size at the time of building the atlas. You may oversample them to get some flexibility with scaling. You can also render at multiple sizes and select which one to use at runtime.\n\n(Glimmer of hope: the atlas system should hopefully be rewritten in the future to make scaling more natural and automatic.)");
ImGui::Text("Ascent: %f, Descent: %f, Height: %f", font->Ascent, font->Descent, font->Ascent - font->Descent); ImGui::Text("Ascent: %f, Descent: %f, Height: %f", font->Ascent, font->Descent, font->Ascent - font->Descent);
ImGui::Text("Fallback character: '%c' (%d)", font->FallbackChar, font->FallbackChar); ImGui::Text("Fallback character: '%c' (%d)", font->FallbackChar, font->FallbackChar);
ImGui::Text("Texture surface: %d pixels (approx)", font->MetricsTotalSurface);
for (int config_i = 0; config_i < font->ConfigDataCount; config_i++) for (int config_i = 0; config_i < font->ConfigDataCount; config_i++)
{ {
ImFontConfig* cfg = &font->ConfigData[config_i]; ImFontConfig* cfg = &font->ConfigData[config_i];
ImGui::BulletText("Input %d: \'%s\'\nOversample: (%d,%d), PixelSnapH: %d", config_i, cfg->Name, cfg->OversampleH, cfg->OversampleV, cfg->PixelSnapH); ImGui::BulletText("Input %d: \'%s\', Oversample: (%d,%d), PixelSnapH: %d", config_i, cfg->Name, cfg->OversampleH, cfg->OversampleV, cfg->PixelSnapH);
} }
if (ImGui::TreeNode("Glyphs", "Glyphs (%d)", font->Glyphs.Size)) if (ImGui::TreeNode("Glyphs", "Glyphs (%d)", font->Glyphs.Size))
{ {

49
imgui_draw.cpp
View File

@ -823,7 +823,7 @@ void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, floa
if (rounding > 0.0f) if (rounding > 0.0f)
{ {
PathRect(a, b, rounding, rounding_corners_flags); PathRect(a, b, rounding, rounding_corners_flags);
PathFill(col); PathFillConvex(col);
} }
else else
{ {
@ -868,7 +868,7 @@ void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c
PathLineTo(b); PathLineTo(b);
PathLineTo(c); PathLineTo(c);
PathLineTo(d); PathLineTo(d);
PathFill(col); PathFillConvex(col);
} }
void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness) void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness)
@ -890,7 +890,7 @@ void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec
PathLineTo(a); PathLineTo(a);
PathLineTo(b); PathLineTo(b);
PathLineTo(c); PathLineTo(c);
PathFill(col); PathFillConvex(col);
} }
void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness) void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness)
@ -910,7 +910,7 @@ void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col,
const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments; const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
PathArcTo(centre, radius, 0.0f, a_max, num_segments); PathArcTo(centre, radius, 0.0f, a_max, num_segments);
PathFill(col); PathFillConvex(col);
} }
void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments) void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments)
@ -958,7 +958,7 @@ void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, c
AddText(GImGui->Font, GImGui->FontSize, pos, col, text_begin, text_end); AddText(GImGui->Font, GImGui->FontSize, pos, col, text_begin, text_end);
} }
void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv0, const ImVec2& uv1, ImU32 col) void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col)
{ {
if ((col & IM_COL32_A_MASK) == 0) if ((col & IM_COL32_A_MASK) == 0)
return; return;
@ -969,7 +969,23 @@ void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const Im
PushTextureID(user_texture_id); PushTextureID(user_texture_id);
PrimReserve(6, 4); PrimReserve(6, 4);
PrimRectUV(a, b, uv0, uv1, col); PrimRectUV(a, b, uv_a, uv_b, col);
if (push_texture_id)
PopTextureID();
}
void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
if (push_texture_id)
PushTextureID(user_texture_id);
PrimReserve(6, 4);
PrimQuadUV(a, b, c, d, uv_a, uv_b, uv_c, uv_d, col);
if (push_texture_id) if (push_texture_id)
PopTextureID(); PopTextureID();
@ -1143,6 +1159,10 @@ ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
IM_PLACEMENT_NEW(font) ImFont(); IM_PLACEMENT_NEW(font) ImFont();
Fonts.push_back(font); Fonts.push_back(font);
} }
else
{
IM_ASSERT(!Fonts.empty()); // When using MergeMode make sure that a font has already been added before. You can use ImGui::AddFontDefault() to add the default imgui font.
}
ConfigData.push_back(*font_cfg); ConfigData.push_back(*font_cfg);
ImFontConfig& new_font_cfg = ConfigData.back(); ImFontConfig& new_font_cfg = ConfigData.back();
@ -1386,7 +1406,7 @@ bool ImFontAtlas::Build()
{ {
ImFontConfig& cfg = ConfigData[input_i]; ImFontConfig& cfg = ConfigData[input_i];
ImFontTempBuildData& tmp = tmp_array[input_i]; ImFontTempBuildData& tmp = tmp_array[input_i];
ImFont* dst_font = cfg.DstFont; ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true)
float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels); float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels);
int unscaled_ascent, unscaled_descent, unscaled_line_gap; int unscaled_ascent, unscaled_descent, unscaled_line_gap;
@ -1403,6 +1423,7 @@ bool ImFontAtlas::Build()
dst_font->Ascent = ascent; dst_font->Ascent = ascent;
dst_font->Descent = descent; dst_font->Descent = descent;
dst_font->Glyphs.resize(0); dst_font->Glyphs.resize(0);
dst_font->MetricsTotalSurface = 0;
} }
dst_font->ConfigDataCount++; dst_font->ConfigDataCount++;
float off_y = (cfg.MergeMode && cfg.MergeGlyphCenterV) ? (ascent - dst_font->Ascent) * 0.5f : 0.0f; float off_y = (cfg.MergeMode && cfg.MergeGlyphCenterV) ? (ascent - dst_font->Ascent) * 0.5f : 0.0f;
@ -1435,6 +1456,7 @@ bool ImFontAtlas::Build()
glyph.XAdvance = (pc.xadvance + cfg.GlyphExtraSpacing.x); // Bake spacing into XAdvance glyph.XAdvance = (pc.xadvance + cfg.GlyphExtraSpacing.x); // Bake spacing into XAdvance
if (cfg.PixelSnapH) if (cfg.PixelSnapH)
glyph.XAdvance = (float)(int)(glyph.XAdvance + 0.5f); glyph.XAdvance = (float)(int)(glyph.XAdvance + 0.5f);
dst_font->MetricsTotalSurface += (int)(glyph.X1 - glyph.X0 + 1.99f) * (int)(glyph.Y1 - glyph.Y0 + 1.99f); // +1 to account for average padding, +0.99 to round
} }
} }
cfg.DstFont->BuildLookupTable(); cfg.DstFont->BuildLookupTable();
@ -1694,15 +1716,16 @@ void ImFont::Clear()
{ {
FontSize = 0.0f; FontSize = 0.0f;
DisplayOffset = ImVec2(0.0f, 1.0f); DisplayOffset = ImVec2(0.0f, 1.0f);
ConfigData = NULL;
ConfigDataCount = 0;
Ascent = Descent = 0.0f;
ContainerAtlas = NULL;
Glyphs.clear(); Glyphs.clear();
FallbackGlyph = NULL;
FallbackXAdvance = 0.0f;
IndexXAdvance.clear(); IndexXAdvance.clear();
IndexLookup.clear(); IndexLookup.clear();
FallbackGlyph = NULL;
FallbackXAdvance = 0.0f;
ConfigDataCount = 0;
ConfigData = NULL;
ContainerAtlas = NULL;
Ascent = Descent = 0.0f;
MetricsTotalSurface = 0;
} }
void ImFont::BuildLookupTable() void ImFont::BuildLookupTable()