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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from imgui.integrations.sdl2 import SDL2Renderer
from sdl2 import *
import OpenGL.GL as gl
import ctypes
import imgui
import sys
def main():
window, gl_context = impl_pysdl2_init()
imgui.create_context()
impl = SDL2Renderer(window)
show_custom_window = True
running = True
event = SDL_Event()
while running:
while SDL_PollEvent(ctypes.byref(event)) != 0:
if event.type == SDL_QUIT:
running = False
break
impl.process_event(event)
impl.process_inputs()
imgui.new_frame()
#show_test_window()
#imgui.show_test_window()
if show_custom_window:
is_expand, show_custom_window = imgui.begin("Custom window", True)
if is_expand:
imgui.text("Bars")
imgui.text_colored("Eggs", 0.2, 1.0, 0.0)
imgui.end()
gl.glClearColor(1.0, 1.0, 1.0, 1)
gl.glClear(gl.GL_COLOR_BUFFER_BIT)
imgui.render()
impl.render(imgui.get_draw_data())
SDL_GL_SwapWindow(window)
impl.shutdown()
SDL_GL_DeleteContext(gl_context)
SDL_DestroyWindow(window)
SDL_Quit()
def impl_pysdl2_init():
width, height = 640, 480
window_name = "minimal ImGui/SDL2 example"
if SDL_Init(SDL_INIT_EVERYTHING) < 0:
print(
"Error: SDL could not initialize! SDL Error: "
+ SDL_GetError().decode("utf-8")
)
sys.exit(1)
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1)
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24)
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8)
SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1)
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1)
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 8)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE)
SDL_SetHint(SDL_HINT_MAC_CTRL_CLICK_EMULATE_RIGHT_CLICK, b"1")
SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, b"1")
window = SDL_CreateWindow(
window_name.encode("utf-8"),
SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED,
width,
height,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE,
)
if window is None:
print(
"Error: Window could not be created! SDL Error: "
+ SDL_GetError().decode("utf-8")
)
sys.exit(1)
gl_context = SDL_GL_CreateContext(window)
if gl_context is None:
print(
"Error: Cannot create OpenGL Context! SDL Error: "
+ SDL_GetError().decode("utf-8")
)
sys.exit(1)
SDL_GL_MakeCurrent(window, gl_context)
if SDL_GL_SetSwapInterval(1) < 0:
print(
"Warning: Unable to set VSync! SDL Error: " + SDL_GetError().decode("utf-8")
)
sys.exit(1)
return window, gl_context
if __name__ == "__main__":
main()