WIP: basic MVC example

mily/examples/mvc_example.py

@@ -0,0 +1,78 @@
+import sys
+import matplotlib.pyplot as plt
+plt.ion()
+from matplotlib.backends.qt_compat import QtWidgets, QtCore, QtGui
+
+
+schema = {'title':
+             {'widget_name': 'titleEdit',
+              'input': 'QLineEdit',
+              'label': 'QLabel',
+              'type': str,
+              'track': 'textChanged',
+              'get': 'text',
+              'set': 'setText'},
+          'author':
+             {'widget_name': 'authorEdit',
+              'input': 'QLineEdit',
+              'label': 'QLabel',
+              'type': str,
+              'track': 'textChanged',
+              'get': 'text',
+              'set': 'setText'},
+          'review':
+             {'widget_name': 'reviewEdit',
+              'input': 'QTextEdit',
+              'label': 'QLabel',
+              'type': str,
+              'track': '',
+              'get': 'toPlainText',
+              'set': 'setText'}}
+
+
+class GUI(QtWidgets.QWidget):
+    def __init__(self, schema):
+        super().__init__()
+        self._schema = schema
+        self.initUI()
+
+    def initUI(self):
+        grid = QtWidgets.QGridLayout()
+        grid.setSpacing(10)
+
+        for i, (k, v) in enumerate(self._schema.items()):
+            setattr(self, k, getattr(QtWidgets, v['label'])(k.capitalize()))
+            setattr(self, v['widget_name'], getattr(QtWidgets, v['input'])())
+            grid.addWidget(getattr(self, k), i+1, 0)
+            grid.addWidget(getattr(self, v['widget_name']), i+1, 1)
+
+        self.setLayout(grid)
+
+        self.setGeometry(300, 300, 350, 300)
+        self.setWindowTitle('Review')
+        self.show()
+
+
+# Working implementation:
+class_dict = {k: property(lambda self, v=v: getattr(getattr(gui, v['widget_name']), v['get'])(),
+                          lambda self, val, v=v: getattr(getattr(gui, v['widget_name']), v['set'])(val))
+              for k, v in schema.items()}
+
+# Non-working implementation:
+"""
+class_dict = {}
+for k, v in schema.items():
+    def _get(self):
+        return getattr(getattr(gui, v['widget_name']), v['get'])()
+    def _set(self, val):
+        getattr(getattr(gui, v['widget_name']), v['set'])(val)
+    class_dict[k] = property(_get, _set)
+"""
+Controller = type('Controller', (), class_dict)
+
+
+if __name__ == '__main__':
+    app = QtWidgets.QApplication(sys.argv)
+    gui = GUI(schema=schema)
+    controller = Controller()
+