"""
Qt-based Cube Renderer using PicoGL's GLBase
This example demonstrates how to create a simple cube renderer using Qt's QOpenGLWidget
through PicoGL's GLBase class. It's designed for legacy displays and systems that
prefer Qt over GLUT.
Features:
- Legacy OpenGL rendering (compatible with older systems)
- Mouse controls for rotation and zoom
- Colorful cube with vertex colors
- Qt-based window management
- Cross-platform compatibility
Requirements:
- PySide6 (Qt6)
- PyOpenGL
- NumPy
- PicoGL
Usage:
python examples/qt_cube.py
"""
import sys
from typing import Optional
from picogl.mode import GLMode
from PySide6.QtCore import Qt
from PySide6.QtWidgets import QMainWindow, QVBoxLayout, QWidget
from elmo.ui.widgets.gl.mol.base import GLMolBase
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class LegacyQtObjectWindow(QMainWindow):
"""
Main window for the Qt Object renderer
"""
def __init__(self, parent, gl_mode: GLMode = GLMode.LEGACY):
super().__init__()
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self.layout: Optional[QVBoxLayout] = None
self.setWindowTitle("PicoGL Qt Object Renderer - Legacy OpenGL")
self.setGeometry(100, 100, 800, 600)
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self.object_file_path = None
self.ui_init()
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def ui_init(self):
# Create central widget
central_widget = QWidget()
self.setCentralWidget(central_widget)
# Create layout
self.layout = QVBoxLayout(central_widget)
# Create info label
self.set_layout(self.layout)
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def set_layout(self, layout):
raise NotImplementedError("To be implemented in subclass")
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def toggle_auto_rotate(self):
"""Toggle auto-rotation"""
self.gl_widget.auto_rotate = not self.gl_widget.auto_rotate
print(f"Auto-rotation: {'ON' if self.gl_widget.auto_rotate else 'OFF'}")
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def reset_view(self):
"""Reset the view"""
self.gl_widget.rotation_x = 0.0
self.gl_widget.rotation_y = 0.0
self.gl_widget.zoom = 5.0
self.gl_widget.mvp_parameters.rotation_x = 0.0
self.gl_widget.mvp_parameters.rotation_y = 0.0
self.gl_widget.mvp_parameters.pan_x = 0.0
self.gl_widget.mvp_parameters.pan_y = 0.0
self.gl_widget.camera_parameters.rotation_x_axis = 0.0
self.gl_widget.camera_parameters.rotation_y_axis = 0.0
self.gl_widget.camera_parameters.rotation_z_axis = 0.0
self.gl_widget.camera_parameters.translation_x_axis = 0.0
self.gl_widget.camera_parameters.translation_y_axis = 0.0
self.gl_widget.camera_parameters.translation_zoom = 0.0
print("View reset")
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def keyPressEvent(self, event):
"""Handle keyboard input at window level"""
if event.key() == Qt.Key_Escape:
self.close()
else:
super().keyPressEvent(event)