[PyQt] question about size hints

[Yao Ko]

Have you tried to set the size policy to:

"""
...
class Test(QtGui.QWidget):
...
       self.setSizePolicy(QtGui.QSizePolicy.MinimumExpanding,
                                  QtGui.QSizePolicy.MinimumExpanding)
...
"""

The Test widget will have the minimum size specified by the sizeHint,
and yet the MainWindow can still grow.

Yao

On Sat, May 1, 2010 at 5:47 AM, Darren Dale <dsdale24 at gmail.com> wrote:
> Please excuse me for bumping. Does anyone have a suggestion?
>
> On Sun, Apr 18, 2010 at 12:42 PM, Darren Dale <dsdale24 at gmail.com> wrote:
>> I have a question about size hints that can be illustrated with the
>> simple example below. If I create my Test widget so it returns a size
>> hint of (200,100), it is rendered with a size of 200, 100. If I create
>> Test so it is 100x70, it is rendered to be 200x100. If I create test
>> to be 1000x700, it is rendered to be 853x533 (my screen resolution is
>> 1280x800). If I set the size policy to be fixed, then the central
>> widget size policy is respected, but I can't resize the window. How
>> can I make m respect the size hint of the central widget, but still
>> maintain the ability to resize the window?
>>
>> Thank you,
>> Darren
>>
>>
>> import sys
>> from PyQt4 import QtCore, QtGui
>>
>> class Test(QtGui.QWidget):
>>
>>    def __init__(self, width, height):
>>        QtGui.QWidget.__init__(self)
>>        #self.setSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
>>        print 'Central widget should have width=%d, height=%d' %(width, height)
>>        self._width = width
>>        self._height = height
>>
>>    def sizeHint(self):
>>        return QtCore.QSize(self._width, self._height)
>>
>> app = QtGui.QApplication([])
>> m = QtGui.QMainWindow()
>> c = Test(1000, 700)
>> m.setCentralWidget(c)
>> m.show()
>> s = c.size()
>> print 'but central widget has width=%d, height=%d'% (s.width(), s.height())
>> sys.exit(app.exec_())
>>
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