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Use the SDL3 renderer from 'imgui_bundle' instead.
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‎opengl.py‎

Lines changed: 5 additions & 184 deletions
Original file line numberDiff line numberDiff line change
@@ -1,181 +1,6 @@
11
import ctypes, colorsys, time, sdl3, OpenGL.GL as gl
22

3-
if USE_IMGUI_BUNDLE := True:
4-
from imgui_bundle.python_backends.opengl_backend import imgui, ProgrammablePipelineRenderer
5-
# from imgui_bundle.python_backends.sdl3_backend import imgui, SDL3Renderer
6-
7-
else:
8-
from imgui.integrations.opengl import imgui, ProgrammablePipelineRenderer
9-
10-
class SDL3Renderer(ProgrammablePipelineRenderer):
11-
"""Basic SDL3 integration implementation."""
12-
MOUSE_WHEEL_OFFSET_SCALE: float = 0.5
13-
14-
@staticmethod
15-
def setCustomStyle() -> None:
16-
style = imgui.get_style()
17-
18-
for key, value in {
19-
imgui.Col_.text.value if USE_IMGUI_BUNDLE else imgui.COLOR_TEXT: (1.00, 1.00, 1.00, 1.00),
20-
imgui.Col_.text_disabled.value if USE_IMGUI_BUNDLE else imgui.COLOR_TEXT_DISABLED: (0.50, 0.50, 0.50, 1.00),
21-
imgui.Col_.window_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_WINDOW_BACKGROUND: (0.00, 0.00, 0.00, 0.39),
22-
imgui.Col_.child_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_CHILD_BACKGROUND: (0.00, 0.00, 0.00, 0.00),
23-
imgui.Col_.popup_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_POPUP_BACKGROUND: (0.00, 0.00, 0.00, 0.63),
24-
imgui.Col_.border.value if USE_IMGUI_BUNDLE else imgui.COLOR_BORDER: (1.00, 1.00, 1.00, 0.31),
25-
imgui.Col_.border_shadow.value if USE_IMGUI_BUNDLE else imgui.COLOR_BORDER_SHADOW: (0.00, 0.00, 0.00, 0.00),
26-
imgui.Col_.frame_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_FRAME_BACKGROUND: (0.00, 0.00, 0.00, 0.63),
27-
imgui.Col_.frame_bg_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_FRAME_BACKGROUND_HOVERED: (0.23, 0.23, 0.23, 0.63),
28-
imgui.Col_.frame_bg_active.value if USE_IMGUI_BUNDLE else imgui.COLOR_FRAME_BACKGROUND_ACTIVE: (0.19, 0.19, 0.19, 0.39),
29-
imgui.Col_.title_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_TITLE_BACKGROUND: (0.00, 0.00, 0.00, 0.63),
30-
imgui.Col_.title_bg_active.value if USE_IMGUI_BUNDLE else imgui.COLOR_TITLE_BACKGROUND_ACTIVE: (0.00, 0.00, 0.00, 1.00),
31-
imgui.Col_.title_bg_collapsed.value if USE_IMGUI_BUNDLE else imgui.COLOR_TITLE_BACKGROUND_COLLAPSED: (0.00, 0.00, 0.00, 0.35),
32-
imgui.Col_.menu_bar_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_MENUBAR_BACKGROUND: (0.00, 0.00, 0.00, 0.78),
33-
imgui.Col_.scrollbar_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_SCROLLBAR_BACKGROUND: (0.05, 0.05, 0.05, 0.54),
34-
imgui.Col_.scrollbar_grab.value if USE_IMGUI_BUNDLE else imgui.COLOR_SCROLLBAR_GRAB: (0.34, 0.34, 0.34, 0.63),
35-
imgui.Col_.scrollbar_grab_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_SCROLLBAR_GRAB_HOVERED: (0.50, 0.50, 0.50, 0.63),
36-
imgui.Col_.scrollbar_grab_active.value if USE_IMGUI_BUNDLE else imgui.COLOR_SCROLLBAR_GRAB_ACTIVE: (0.38, 0.38, 0.38, 0.63),
37-
imgui.Col_.check_mark.value if USE_IMGUI_BUNDLE else imgui.COLOR_CHECK_MARK: (0.22, 0.55, 0.74, 1.00),
38-
imgui.Col_.slider_grab.value if USE_IMGUI_BUNDLE else imgui.COLOR_SLIDER_GRAB: (0.34, 0.34, 0.34, 0.54),
39-
imgui.Col_.slider_grab_active.value if USE_IMGUI_BUNDLE else imgui.COLOR_SLIDER_GRAB_ACTIVE: (0.56, 0.56, 0.56, 0.54),
40-
imgui.Col_.button.value if USE_IMGUI_BUNDLE else imgui.COLOR_BUTTON: (0.00, 0.00, 0.00, 0.63),
41-
imgui.Col_.button_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_BUTTON_HOVERED: (0.20, 0.22, 0.23, 0.63),
42-
imgui.Col_.button_active.value if USE_IMGUI_BUNDLE else imgui.COLOR_BUTTON_ACTIVE: (0.19, 0.19, 0.19, 0.39),
43-
imgui.Col_.header.value if USE_IMGUI_BUNDLE else imgui.COLOR_HEADER: (0.20, 0.20, 0.20, 0.78),
44-
imgui.Col_.header_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_HEADER_HOVERED: (0.29, 0.29, 0.29, 0.78),
45-
imgui.Col_.header_active.value if USE_IMGUI_BUNDLE else imgui.COLOR_HEADER_ACTIVE: (0.19, 0.19, 0.19, 0.15),
46-
imgui.Col_.separator.value if USE_IMGUI_BUNDLE else imgui.COLOR_SEPARATOR: (0.28, 0.28, 0.28, 0.29),
47-
imgui.Col_.separator_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_SEPARATOR_HOVERED: (0.44, 0.44, 0.44, 0.29),
48-
imgui.Col_.separator_active.value if USE_IMGUI_BUNDLE else imgui.COLOR_SEPARATOR_ACTIVE: (0.40, 0.44, 0.47, 1.00),
49-
imgui.Col_.resize_grip.value if USE_IMGUI_BUNDLE else imgui.COLOR_RESIZE_GRIP: (0.28, 0.28, 0.28, 0.29),
50-
imgui.Col_.resize_grip_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_RESIZE_GRIP_HOVERED: (0.44, 0.44, 0.44, 0.29),
51-
imgui.Col_.resize_grip_active.value if USE_IMGUI_BUNDLE else imgui.COLOR_RESIZE_GRIP_ACTIVE: (0.40, 0.44, 0.47, 1.00),
52-
imgui.Col_.tab.value if USE_IMGUI_BUNDLE else imgui.COLOR_TAB: (0.00, 0.00, 0.00, 0.52),
53-
imgui.Col_.tab_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_TAB_HOVERED: (0.20, 0.20, 0.20, 0.36),
54-
imgui.Col_.tab_selected.value if USE_IMGUI_BUNDLE else imgui.COLOR_TAB_ACTIVE: (0.14, 0.14, 0.14, 1.00),
55-
imgui.Col_.tab_dimmed.value if USE_IMGUI_BUNDLE else imgui.COLOR_TAB_UNFOCUSED: (0.00, 0.00, 0.00, 0.52),
56-
imgui.Col_.tab_dimmed_selected.value if USE_IMGUI_BUNDLE else imgui.COLOR_TAB_UNFOCUSED_ACTIVE: (0.14, 0.14, 0.14, 1.00),
57-
imgui.Col_.plot_lines.value if USE_IMGUI_BUNDLE else imgui.COLOR_PLOT_LINES: (1.00, 0.00, 0.00, 1.00),
58-
imgui.Col_.plot_lines_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_PLOT_LINES_HOVERED: (1.00, 0.00, 0.00, 1.00),
59-
imgui.Col_.plot_histogram.value if USE_IMGUI_BUNDLE else imgui.COLOR_PLOT_HISTOGRAM: (1.00, 0.00, 0.00, 1.00),
60-
imgui.Col_.plot_histogram_hovered.value if USE_IMGUI_BUNDLE else imgui.COLOR_PLOT_HISTOGRAM_HOVERED: (1.00, 0.00, 0.00, 1.00),
61-
imgui.Col_.table_header_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_TABLE_HEADER_BACKGROUND: (0.00, 0.00, 0.00, 0.52),
62-
imgui.Col_.table_border_strong.value if USE_IMGUI_BUNDLE else imgui.COLOR_TABLE_BORDER_STRONG: (0.00, 0.00, 0.00, 0.52),
63-
imgui.Col_.table_border_light.value if USE_IMGUI_BUNDLE else imgui.COLOR_TABLE_BORDER_LIGHT: (0.28, 0.28, 0.28, 0.29),
64-
imgui.Col_.table_row_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_TABLE_ROW_BACKGROUND: (0.00, 0.00, 0.00, 0.00),
65-
imgui.Col_.table_row_bg_alt.value if USE_IMGUI_BUNDLE else imgui.COLOR_TABLE_ROW_BACKGROUND_ALT: (1.00, 1.00, 1.00, 0.06),
66-
imgui.Col_.text_selected_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_TEXT_SELECTED_BACKGROUND: (0.26, 0.59, 0.98, 0.35),
67-
imgui.Col_.drag_drop_target.value if USE_IMGUI_BUNDLE else imgui.COLOR_DRAG_DROP_TARGET: (1.00, 1.00, 0.00, 0.90),
68-
imgui.Col_.nav_windowing_highlight.value if USE_IMGUI_BUNDLE else imgui.COLOR_NAV_WINDOWING_HIGHLIGHT: (1.00, 1.00, 1.00, 0.70),
69-
imgui.Col_.nav_windowing_dim_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_NAV_WINDOWING_DIM_BACKGROUND: (0.80, 0.80, 0.80, 0.20),
70-
imgui.Col_.modal_window_dim_bg.value if USE_IMGUI_BUNDLE else imgui.COLOR_MODAL_WINDOW_DIM_BACKGROUND: (0.20, 0.20, 0.20, 0.35)
71-
}.items():
72-
if USE_IMGUI_BUNDLE: style.set_color_(key, value)
73-
else: style.colors[key] = value
74-
75-
style.window_padding, style.frame_padding, style.cell_padding = (6.0, 6.0), (5.0, 2.0), (6.0, 6.0)
76-
style.item_spacing, style.item_inner_spacing, style.touch_extra_padding = (6.0, 6.0), (6.0, 6.0), (0.0, 0.0)
77-
style.window_title_align, style.indent_spacing, style.scrollbar_size = (0.5, 0.5), 25.0, 10.0
78-
style.grab_min_size, style.window_border_size, style.child_border_size = 10.0, 1.0, 1.0
79-
style.popup_border_size, style.frame_border_size, style.tab_border_size = 1.0, 1.0, 1.0
80-
style.window_rounding, style.child_rounding, style.frame_rounding = 5.0, 4.0, 2.0
81-
style.popup_rounding, style.scrollbar_rounding, style.grab_rounding = 4.0, 9.0, 2.0
82-
style.log_slider_deadzone, style.tab_rounding = 4.0, 4.0
83-
84-
def __init__(self, window: sdl3.LP_SDL_Window) -> None:
85-
super(SDL3Renderer, self).__init__()
86-
87-
self.window = window
88-
self.lastTime = sdl3.SDL_GetTicks() / 1000.0
89-
sdl3.SDL_StartTextInput(window)
90-
91-
if not USE_IMGUI_BUNDLE:
92-
imgui.get_io().get_clipboard_text_fn = lambda: sdl3.SDL_GetClipboardText().decode()
93-
imgui.get_io().set_clipboard_text_fn = lambda text: sdl3.SDL_SetClipboardText(text.encode())
94-
95-
for key, value in {
96-
imgui.KEY_TAB: sdl3.SDL_SCANCODE_TAB, imgui.KEY_LEFT_ARROW: sdl3.SDL_SCANCODE_LEFT,
97-
imgui.KEY_RIGHT_ARROW: sdl3.SDL_SCANCODE_RIGHT, imgui.KEY_UP_ARROW: sdl3.SDL_SCANCODE_UP,
98-
imgui.KEY_DOWN_ARROW: sdl3.SDL_SCANCODE_DOWN, imgui.KEY_PAGE_UP: sdl3.SDL_SCANCODE_PAGEUP,
99-
imgui.KEY_PAGE_DOWN: sdl3.SDL_SCANCODE_PAGEDOWN, imgui.KEY_HOME: sdl3.SDL_SCANCODE_HOME,
100-
imgui.KEY_END: sdl3.SDL_SCANCODE_END, imgui.KEY_INSERT: sdl3.SDL_SCANCODE_INSERT,
101-
imgui.KEY_DELETE: sdl3.SDL_SCANCODE_DELETE, imgui.KEY_BACKSPACE: sdl3.SDL_SCANCODE_BACKSPACE,
102-
imgui.KEY_SPACE: sdl3.SDL_SCANCODE_SPACE, imgui.KEY_ENTER: sdl3.SDL_SCANCODE_RETURN,
103-
imgui.KEY_ESCAPE: sdl3.SDL_SCANCODE_ESCAPE, imgui.KEY_PAD_ENTER: sdl3.SDL_SCANCODE_KP_ENTER,
104-
imgui.KEY_A: sdl3.SDL_SCANCODE_A, imgui.KEY_C: sdl3.SDL_SCANCODE_C, imgui.KEY_V: sdl3.SDL_SCANCODE_V,
105-
imgui.KEY_X: sdl3.SDL_SCANCODE_X, imgui.KEY_Y: sdl3.SDL_SCANCODE_Y, imgui.KEY_Z: sdl3.SDL_SCANCODE_Z
106-
}.items(): self.io.key_map[key] = value
107-
108-
else:
109-
imgui.get_platform_io().platform_get_clipboard_text_fn = lambda _: sdl3.SDL_GetClipboardText().decode()
110-
imgui.get_platform_io().platform_set_clipboard_text_fn = lambda _, text: sdl3.SDL_SetClipboardText(text.encode())
111-
112-
self.key_map = {
113-
sdl3.SDL_SCANCODE_TAB: imgui.Key.tab, sdl3.SDL_SCANCODE_LEFT: imgui.Key.left_arrow,
114-
sdl3.SDL_SCANCODE_RIGHT: imgui.Key.right_arrow, sdl3.SDL_SCANCODE_UP: imgui.Key.up_arrow,
115-
sdl3.SDL_SCANCODE_DOWN: imgui.Key.down_arrow, sdl3.SDL_SCANCODE_PAGEUP: imgui.Key.page_up,
116-
sdl3.SDL_SCANCODE_PAGEDOWN: imgui.Key.page_down, sdl3.SDL_SCANCODE_HOME: imgui.Key.home,
117-
sdl3.SDL_SCANCODE_END: imgui.Key.end, sdl3.SDL_SCANCODE_INSERT: imgui.Key.insert,
118-
sdl3.SDL_SCANCODE_DELETE: imgui.Key.delete, sdl3.SDL_SCANCODE_BACKSPACE: imgui.Key.backspace,
119-
sdl3.SDL_SCANCODE_SPACE: imgui.Key.space, sdl3.SDL_SCANCODE_RETURN: imgui.Key.enter,
120-
sdl3.SDL_SCANCODE_ESCAPE: imgui.Key.escape, sdl3.SDL_SCANCODE_KP_ENTER: imgui.Key.keypad_enter,
121-
sdl3.SDL_SCANCODE_A: imgui.Key.a, sdl3.SDL_SCANCODE_C: imgui.Key.c, sdl3.SDL_SCANCODE_V: imgui.Key.v,
122-
sdl3.SDL_SCANCODE_X: imgui.Key.x, sdl3.SDL_SCANCODE_Y: imgui.Key.y, sdl3.SDL_SCANCODE_Z: imgui.Key.z,
123-
sdl3.SDL_SCANCODE_LCTRL: imgui.Key.mod_ctrl, sdl3.SDL_SCANCODE_RCTRL: imgui.Key.mod_ctrl,
124-
sdl3.SDL_SCANCODE_LSHIFT: imgui.Key.mod_shift, sdl3.SDL_SCANCODE_RSHIFT: imgui.Key.mod_shift,
125-
sdl3.SDL_SCANCODE_LALT: imgui.Key.mod_alt, sdl3.SDL_SCANCODE_RALT: imgui.Key.mod_alt,
126-
sdl3.SDL_SCANCODE_LGUI: imgui.Key.mod_super, sdl3.SDL_SCANCODE_RGUI: imgui.Key.mod_super
127-
}
128-
129-
def processEvent(self, event: sdl3.SDL_Event) -> bool:
130-
if event.type in [sdl3.SDL_EVENT_MOUSE_WHEEL]:
131-
if not USE_IMGUI_BUNDLE: self.io.mouse_wheel = event.wheel.y * self.MOUSE_WHEEL_OFFSET_SCALE
132-
else: self.io.add_mouse_wheel_event(event.wheel.x * self.MOUSE_WHEEL_OFFSET_SCALE, event.wheel.y * self.MOUSE_WHEEL_OFFSET_SCALE)
133-
134-
elif event.type in [sdl3.SDL_EVENT_MOUSE_BUTTON_UP, sdl3.SDL_EVENT_MOUSE_BUTTON_DOWN]:
135-
buttons = [sdl3.SDL_BUTTON_LEFT, sdl3.SDL_BUTTON_RIGHT, sdl3.SDL_BUTTON_MIDDLE]
136-
137-
if (button := event.button.button) in buttons:
138-
if not USE_IMGUI_BUNDLE: self.io.mouse_down[buttons.index(event.button.button)] = event.type == sdl3.SDL_EVENT_MOUSE_BUTTON_DOWN
139-
else: self.io.add_mouse_button_event(buttons.index(button), event.type == sdl3.SDL_EVENT_MOUSE_BUTTON_DOWN)
140-
141-
elif event.type in [sdl3.SDL_EVENT_MOUSE_MOTION]:
142-
self.io.mouse_pos = (event.motion.x, event.motion.y) \
143-
if sdl3.SDL_GetWindowFlags(self.window) & sdl3.SDL_WINDOW_MOUSE_FOCUS else (-1, -1)
144-
145-
elif event.type in [sdl3.SDL_EVENT_KEY_UP, sdl3.SDL_EVENT_KEY_DOWN]:
146-
if not USE_IMGUI_BUNDLE:
147-
if event.key.scancode < sdl3.SDL_SCANCODE_COUNT:
148-
self.io.keys_down[event.key.scancode] = event.type == sdl3.SDL_EVENT_KEY_DOWN
149-
150-
if state := sdl3.SDL_GetModState():
151-
self.io.key_shift = (state & sdl3.SDL_KMOD_SHIFT) != 0
152-
self.io.key_ctrl = (state & sdl3.SDL_KMOD_CTRL) != 0
153-
self.io.key_alt = (state & sdl3.SDL_KMOD_ALT) != 0
154-
self.io.key_super = (state & sdl3.SDL_KMOD_GUI) != 0
155-
156-
else:
157-
if (scancode := event.key.scancode) in self.key_map:
158-
self.io.add_key_event(self.key_map[scancode], event.type == sdl3.SDL_EVENT_KEY_DOWN)
159-
160-
elif event.type in [sdl3.SDL_EVENT_TEXT_INPUT]:
161-
for char in event.text.text.decode("utf-8"):
162-
self.io.add_input_character(ord(char))
163-
164-
else:
165-
return False
166-
167-
return True
168-
169-
def processInputs(self) -> None:
170-
width, height = ctypes.c_int(0), ctypes.c_int(0)
171-
sdl3.SDL_GetWindowSize(self.window, ctypes.byref(width), ctypes.byref(height))
172-
self.io.display_size, self.io.mouse_wheel = (width.value, height.value), 0
173-
if USE_IMGUI_BUNDLE: self.io.display_framebuffer_scale = (1, 1)
174-
else: self.io.display_fb_scale = (1, 1)
175-
176-
currentTime = sdl3.SDL_GetTicks() / 1000.0; deltaTime = currentTime - self.lastTime
177-
self.io.delta_time = 1.0 / 10000.0 if deltaTime <= 0.0 else deltaTime
178-
self.lastTime = currentTime
3+
from imgui_bundle.python_backends.sdl3_backend import imgui, SDL3Renderer
1794

1805
@sdl3.SDL_main_func
1816
def main(argc: ctypes.c_int, argv: sdl3.LP_c_char_p) -> ctypes.c_int:
@@ -201,19 +26,17 @@ def main(argc: ctypes.c_int, argv: sdl3.LP_c_char_p) -> ctypes.c_int:
20126
return -1
20227

20328
imgui.create_context()
204-
if USE_IMGUI_BUNDLE: imgui.get_io().set_ini_filename("")
205-
else: imgui.get_io().ini_file_name = None
206-
SDL3Renderer.setCustomStyle()
29+
imgui.get_io().set_ini_filename("")
20730

20831
renderer = SDL3Renderer(window)
20932
running, hue, lastTime = True, 0.0, time.time()
21033
event = sdl3.SDL_Event()
21134

21235
while running:
213-
renderer.processInputs()
36+
renderer.process_inputs()
21437

21538
while sdl3.SDL_PollEvent(ctypes.byref(event)):
216-
renderer.processEvent(event)
39+
renderer.process_event(event)
21740

21841
match event.type:
21942
case sdl3.SDL_EVENT_QUIT:
@@ -239,9 +62,7 @@ def main(argc: ctypes.c_int, argv: sdl3.LP_c_char_p) -> ctypes.c_int:
23962
sdl3.SDL_GL_SwapWindow(window)
24063

24164
renderer.shutdown()
242-
243-
if USE_IMGUI_BUNDLE:
244-
imgui.destroy_context()
65+
imgui.destroy_context()
24566

24667
sdl3.SDL_GL_MakeCurrent(window, None)
24768
sdl3.SDL_GL_DestroyContext(context)

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