dpg_bug_demo.py

import dearpygui.dearpygui as dpg
dpg.enable_docking(dock_space=True)

import numpy as np

width = 800
height = 800
grid_arr = np.ones((width, height, 4), dtype=np.float32)

rng = np.random.default_rng()

with dpg.texture_registry():
    image_id = dpg.add_raw_texture(width,
                                   height,
                                   grid_arr,
                                   format=dpg.mvFormat_Float_rgba)

def clicked_callback(sender, app_data, user_data):
    print(f"[{sender}]: {app_data}, {user_data}")

with dpg.window(label="Tutorial"):
    # with dpg.drawlist(width=width, height=height):
    img_widget = dpg.add_image(image_id)  # , (0, 0), (width, height))
    with dpg.handler_registry():
            dpg.add_clicked_handler(img_widget, label="clicked", user_data = "click", callback=clicked_callback)
            dpg.add_mouse_down_handler(img_widget, label="down", user_data = "down", callback=clicked_callback)
            # dpg.add_hover_handler(img_widget, user_data="hover", callback=clicked_callback)
            dpg.add_mouse_release_handler(img_widget, user_data="release", callback=clicked_callback)
            # dpg.add_mouse_move_handler(img_widget, user_data="move", callback=clicked_callback)

if __name__ == "__main__":
    dpg.setup_viewport()

    while dpg.is_dearpygui_running():
        dpg.render_dearpygui_frame()

    dpg.cleanup_dearpygui()

dpg_long_poc.py

from OpenGL import platform as gl_platform

import dearpygui.dearpygui as dpg
from dearpygui.demo import show_demo
dpg.enable_docking(dock_space=True)


with dpg.font_registry():

    # add font (set as default for entire app)
    dpg.add_font(
        "/usr/share/fonts/adobe-source-han-sans/SourceHanSansCN-Regular.otf",
        40,
        default_font=True)


import numpy as np
import threading

width = 800
height = 800
grid_arr = np.ones((width, height, 4), dtype=np.float32)

rng = np.random.default_rng()

with dpg.texture_registry():
    image_id = dpg.add_raw_texture(width,
                                   height,
                                   grid_arr,
                                   format=dpg.mvFormat_Float_rgba)
    image_id_1 = dpg.add_raw_texture(width,
                                     height,
                                     grid_arr,
                                     format=dpg.mvFormat_Float_rgba)

def clicked_callback(sender, app_data, user_data):
    print(f"[{sender}]: {app_data}, {user_data}")

with dpg.window(label="Tutorial"):
    # with dpg.drawlist(width=width, height=height):
    img_widget = dpg.add_image(image_id)  # , (0, 0), (width, height))
    with dpg.handler_registry():
            dpg.add_clicked_handler(img_widget, label="3D clicked", user_data = "click", callback=clicked_callback)
            dpg.add_mouse_down_handler(img_widget, label="3D dragged", user_data = "down", callback=clicked_callback)
            # dpg.add_hover_handler(img_widget, user_data="hover", callback=clicked_callback)
            dpg.add_mouse_release_handler(img_widget, user_data="release", callback=clicked_callback)
            # dpg.add_mouse_move_handler(img_widget, user_data="move", callback=clicked_callback)

should_continue = True


def setter():
    import time

    while should_continue:
        rng.standard_normal(out=grid_arr, dtype=np.float32)

        # dpg.set_value(image_id, grid_arr)
        time.sleep(0.01)


t = threading.Thread(target=setter)
t.start()

def exit_handler():
    global should_continue
    print("EXIT!")
    should_continue = False

dpg.set_exit_callback(exit_handler)

if __name__ == "__main__":
    dpg.setup_viewport()

    dpg_context = gl_platform.GetCurrentContext()

    print(f"DPG context: {dpg_context}")

    show_demo()

    glp = None
    while dpg.is_dearpygui_running():
        dpg.render_dearpygui_frame()

    dpg.cleanup_dearpygui()