Hello,
I'm laying out part of the UI for my app using a QMainWindow with no central
widget and 4 dock widgets. I'd like the dock widgets to be sized
proportionally to each other but they seem to ignore the value returned by
sizeHint(). Am I missing something?
- John
Here's a concrete example illustrating my problem:
import cPickle
import os.path
import sys
from PyQt4 import QtGui, QtCore
class _ViewContainer(QtGui.QMainWindow):
""" This class is a container for a view that allows an initial size
(specified as a tuple) to be set.
"""
def __init__(self, size, main_window):
QtGui.QMainWindow.__init__(self)
# Save the size and main window.
self._width, self._height = size
self._main_window = main_window
# set a minimum size to quiet Qt
self.setMinimumSize(100, 100)
self.setSizePolicy(QtGui.QSizePolicy.Preferred,
QtGui.QSizePolicy.Preferred)
def minimumSizeHint(self):
try:
return self.centralWidget().minimumSizeHint()
except AttributeError:
return super(_ViewContainer, self).minimumSizeHint()
def sizeHint(self):
sh = self.centralWidget().sizeHint()
if self._width > 0:
if self._width > 1:
w = self._width
else:
w = self._main_window.width() * self._width
sh.setWidth(int(w))
if self._height > 0:
if self._height > 1:
h = self._height
else:
h = self._main_window.height() * self._height
sh.setHeight(int(h))
return sh
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(QtCore.QSize(QtCore.QRect(0,0,800,600).size()).expandedTo(MainWindow.minimumSizeHint()))
self.menubar = QtGui.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0,0,800,21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtGui.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
MainWindow.setWindowTitle(QtGui.QApplication.translate("MainWindow",
"MainWindow",
None,
QtGui.QApplication.UnicodeUTF8))
class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.createDockWindows()
def closeEvent(self, event):
self.saveLayout()
super(MainWindow, self).closeEvent(event)
def createDockWidget(self, name, size):
dock = QtGui.QDockWidget(name, self)
child = QtGui.QLabel(name)
vc = _ViewContainer(size, self)
dock.setWidget(vc)
dock.setObjectName(name)
self._qt4_adjust_widget_layout(child)
dock.widget().setCentralWidget(child)
return dock;
def createDockWindows(self):
dock1 = self.createDockWidget("Dock1", (0.5, 0.75))
self.addDockWidget(QtCore.Qt.TopDockWidgetArea, dock1)
dock2 = self.createDockWidget("Dock2", (0.5, 0.75))
self.addDockWidget(QtCore.Qt.BottomDockWidgetArea, dock2)
dock3 = self.createDockWidget("Dock3", (0.5, 0.25))
self.splitDockWidget(dock2, dock3, QtCore.Qt.Horizontal)
dock4 = self.createDockWidget("Dock4", (0.5, 0.25))
self.splitDockWidget(dock1, dock4, QtCore.Qt.Horizontal)
def saveLayout(self):
filename = './layout.dat'
f = file(filename, 'w')
state = str(self.saveState())
cPickle.dump((0,state), f)
f.close()
def restoreLayout(self):
filename = './layout.dat'
if os.path.exists(filename):
f = file(filename, 'r')
vers, state = cPickle.load(f)
f.close()
self.restoreState(state)
@staticmethod
def _qt4_adjust_widget_layout(w):
lay = w.layout()
if lay is not None:
lay.setAlignment(QtCore.Qt.AlignLeft|QtCore.Qt.AlignTop)
lay.setContentsMargins(0, 0, 0, 0)
def main():
app = QtGui.QApplication(sys.argv)
mainwindow = MainWindow()
mainwindow.restoreLayout()
mainwindow.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
_______________________________________________
PyQt mailing list PyQt@riverbankcomputing.com
http://www.riverbankcomputing.com/mailman/listinfo/pyqt
