mainwindow: Simplify the 'Actions' widget

PyQt4 4.7.4 loses its bearings when a widget modifies the
direction of its QBoxLayout in a resize event.

We depended on this behavior to allow the actions widget to
automatically switch between vertical and horizontal layouts.

Simplify the code by just sticking to a vertical layout.
All of the actions on the 'Actions' widget are also
available in the menus these days.

Closes #62

Reported-by: alyst via github.com
Signed-off-by: David Aguilar <davvid@gmail.com>

cola/qt.py

@@ -1,5 +1,5 @@
 from PyQt4 import QtGui
-from PyQt4 import QtCore
+
 
 from cola import i18n
 
@@ -11,33 +11,3 @@ def create_button(text, layout=None):
     if layout:
         layout.addWidget(button)
     return button
-
-
-class QFlowLayoutWidget(QtGui.QWidget):
-
-    _horizontal = QtGui.QBoxLayout.LeftToRight
-    _vertical = QtGui.QBoxLayout.TopToBottom
-
-    def __init__(self, parent=None):
-        QtGui.QWidget.__init__(self, parent)
-        self._direction = self._vertical
-        layout = QtGui.QBoxLayout(self._direction)
-        layout.setSpacing(2)
-        layout.setMargin(2)
-        self.setLayout(layout)
-        self.setContentsMargins(2, 2, 2, 2)
-        policy = QtGui.QSizePolicy(QtGui.QSizePolicy.Minimum,
-                                   QtGui.QSizePolicy.Minimum)
-        self.setSizePolicy(policy)
-        self.setMinimumSize(QtCore.QSize(1, 1))
-
-    def resizeEvent(self, event):
-        size = event.size()
-        if size.width() * 0.8 < size.height():
-            dxn = self._vertical
-        else:
-            dxn = self._horizontal
-
-        if dxn != self._direction:
-            self._direction = dxn
-            self.layout().setDirection(dxn)

cola/views/mainwindow.py

@@ -27,9 +27,8 @@ def __init__(self, parent=None):
 
         # "Actions" widget
         self.actiondockwidget = self.create_dock('Actions')
-        self.actiondockwidgetcontents = qt.QFlowLayoutWidget(parent=self)
-
-        layout = self.actiondockwidgetcontents.layout()
+        self.actiondockwidgetcontents = QtGui.QWidget()
+        layout = QtGui.QVBoxLayout(self.actiondockwidgetcontents)
         self.rescan_button = qt.create_button('Rescan', layout)
         self.stage_button = qt.create_button('Stage', layout)
         self.unstage_button = qt.create_button('Unstage', layout)