55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
#!/usr/bin/env python3
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import nanogui
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from nanogui import glfw
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from nanogui import BoxLayout, Button, Label, Orientation, Screen, Window
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class HelloWorldApp(Screen):
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def __init__(self, size=(400, 300)):
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super().__init__(size, "NanoGUI Hello World")
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self.win = Window(self, "Demo Window")
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self.win.set_layout(BoxLayout(Orientation.Vertical, margin=20, spacing=20))
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self.resize_event(size)
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Label(self.win, "NanoGUI Demo", "sans-bold")
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b = Button(self.win, "Say hello!")
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def cb():
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print("Well, 'ello there!")
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b.set_callback(cb)
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self.set_visible(True)
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self.perform_layout()
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def resize_event(self, size):
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self.win.set_fixed_size(size)
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self.win.set_size(size)
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self.win.center()
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self.win.perform_layout(self.nvg_context())
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super().resize_event(size)
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return True
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def keyboard_event(self, key, scancode, action, modifiers):
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if super().keyboard_event(key, scancode, action, modifiers):
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return True
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if key == glfw.KEY_ESCAPE and action == glfw.PRESS:
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self.set_visible(False)
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return True
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return False
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if __name__ == "__main__":
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import gc
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nanogui.init()
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app = HelloWorldApp()
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nanogui.mainloop(refresh=1 / 60.0 * 1000)
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del app
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gc.collect()
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nanogui.shutdown()
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