cola/qt.py

   1 from PyQt4 import QtGui
   2 from PyQt4 import QtCore
   3
   4 def create_button(text, layout=None):
   5     """Create a button, set its title, and add it to the parent."""
   6     button = QtGui.QPushButton()
   7     button.setText(text)
   8     if layout:
   9         layout.addWidget(button)
  10     return button
  11
  12
  13 class QFlowLayoutWidget(QtGui.QWidget):
  14
  15     _horizontal = QtGui.QBoxLayout.LeftToRight
  16     _vertical = QtGui.QBoxLayout.TopToBottom
  17
  18     def __init__(self, parent=None):
  19         QtGui.QWidget.__init__(self, parent)
  20         self._direction = self._vertical
  21         layout = QtGui.QBoxLayout(self._direction)
  22         layout.setSpacing(2)
  23         layout.setMargin(2)
  24         self.setLayout(layout)
  25         self.setContentsMargins(2, 2, 2, 2)
  26         policy = QtGui.QSizePolicy(QtGui.QSizePolicy.Minimum,
  27                                    QtGui.QSizePolicy.Minimum)
  28         self.setSizePolicy(policy)
  29         self.setMinimumSize(QtCore.QSize(1, 1))
  30
  31     def resizeEvent(self, event):
  32         size = event.size()
  33         if size.width() * 0.8 < size.height():
  34             dxn = self._vertical
  35         else:
  36             dxn = self._horizontal
  37
  38         if dxn != self._direction:
  39             self._direction = dxn
  40             self.layout().setDirection(dxn)