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Big example binding refactor (manually imported from Viewport branch, stripped out of Viewport code). (#1870)

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Read examples/README.txt for some details.
ImDrawData: Added DisplayPos, DisplaySize fields honored by all backends (not strictly necessary to honor just now, but doing it to be ahead)
This commit is contained in:
omar
2018-06-08 19:37:33 +02:00
parent 8e48ab6b19
commit 85f9694bd4
84 changed files with 3655 additions and 3941 deletions
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28
examples/sdl_opengl3_example/main.cpp
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@@ -4,7 +4,8 @@
// (GL3W is a helper library to access OpenGL functions since there is no standard header to access modern OpenGL functions easily. Alternatives are GLEW, Glad, etc.)
#include "imgui.h"
#include "imgui_impl_sdl_gl3.h"
#include "imgui_impl_sdl2.h"
#include "imgui_impl_opengl3.h"
#include <stdio.h>
#include <GL/gl3w.h> // This example is using gl3w to access OpenGL functions (because it is small). You may use glew/glad/glLoadGen/etc. whatever already works for you.
#include <SDL.h>
@@ -38,7 +39,9 @@ int main(int, char**)
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
ImGui_ImplSdlGL3_Init(window);
ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
ImGui_ImplOpenGL3_Init();
// Setup style
ImGui::StyleColorsDark();
@@ -67,6 +70,7 @@ int main(int, char**)
bool done = false;
while (!done)
{
// Poll and handle events (inputs, window resize, etc.)
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
@@ -74,11 +78,17 @@ int main(int, char**)
SDL_Event event;
while (SDL_PollEvent(&event))
{
ImGui_ImplSdlGL3_ProcessEvent(&event);
ImGui_ImplSDL2_ProcessEvent(&event);
if (event.type == SDL_QUIT)
done = true;
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
ImGui_ImplSdlGL3_NewFrame(window);
// Start the ImGui frame
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplSDL2_NewFrame(window);
ImGui::NewFrame();
// 1. Show a simple window.
// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
@@ -118,16 +128,18 @@ int main(int, char**)
}
// Rendering
glViewport(0, 0, (int)ImGui::GetIO().DisplaySize.x, (int)ImGui::GetIO().DisplaySize.y);
ImGui::Render();
SDL_GL_MakeCurrent(window, gl_context);
glViewport(0, 0, (int)io.DisplaySize.x, (int)io.DisplaySize.y);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT);
ImGui::Render();
ImGui_ImplSdlGL3_RenderDrawData(ImGui::GetDrawData());
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
SDL_GL_SwapWindow(window);
}
// Cleanup
ImGui_ImplSdlGL3_Shutdown();
ImGui_ImplOpenGL3_Shutdown();
ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext();
SDL_GL_DeleteContext(gl_context);