[QGraphicsView] Size stretch

Hi all,

I'm having troubles stretching QGraphicsViews automatically when the size of my window adjusts.

This is the code I have at the moment.

Code:

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self.leftview = QtGui.QGraphicsView()
self.rightview = QtGui.QGraphicsView()
 
self.leftview.setFixedSize(550,600)
self.rightview.setFixedSize(550,600)		
 
leftrect = QtCore.QRectF(self.leftview.rect())
rightrect = QtCore.QRectF(self.rightview.rect())
leftrect.adjust(1,1,-1,-1)
rightrect.adjust(1,1,-1,-1)
 
self.leftscene = TEMDrawer.DiagramScene(leftrect)
self.rightscene = TEMDrawer.DiagramScene(rightrect)
 
self.leftview.setScene(self.leftscene)
self.rightview.setScene(self.rightscene)

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The constructor of the DiagramScene calls the setSceneRect with the given parameter.
No GUI-related stuff other than that happens in the DiagramScene class.

Removing the setFixedSize() method calls do not enable automatic stretching of the QGraphicsView or QGraphicsScene.

Is there a way to automatically stretch a QGraphicsScene or QGraphicsView to fit the space the layout uses?

Thanks in advance!

PS: I had a look at the proposed threads #1#2#3, but they did not offer a solution for my problem...

Do you use a layout for your graphics view ?

I mean ,your widget's constructor might look like this:

Code:

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self.MyGraphicsScene = QtGui.QGraphicsScene( self );
 
# add items to the scene 
 
self.MyGraphicsView =  QtGui.QGraphicsView( self.MyGraphicsScene );
 
 
self.MainLayout = QtGui.QHBoxLayout( self );
 
self.MainLayout .addWidget( self.MyGraphicsView );

---

Now your graphics view will be resized as the parent's size changes.

Dear Alex, thanks for your reply.

I do add the views to a layout. The code in the first post is followed by:

Code:

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self.rightlayout.addWidget(self.qlist)
self.rightlayout.addWidget(self.qinfow)
self.qcheckbox = QtGui.QCheckBox("Hide convergences")
self.rightlayout.addWidget(self.qcheckbox)
self.connect(self.qcheckbox, QtCore.SIGNAL('stateChanged(int)'), self.reflexInfo.convergences_toggled)
self.mainlayout.addWidget(self.splitterwidget,5)
self.mainlayout.addLayout(self.rightlayout)		
self.setLayout(self.mainlayout)

---

Do you happen to know what I am doing wrong?

Can you share a code ?

This is the drawing code:

Code:

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def __init__(self,usrlist,tsklist,conc_tasklist,parent=None):
		super(TEMReflexionWidget,self).__init__(parent)
 
		self.mainlayout = QtGui.QHBoxLayout()
		self.leftlayout = QtGui.QVBoxLayout()
		self.innerlayout = QtGui.QHBoxLayout()
		self.rightlayout = QtGui.QVBoxLayout()
 
		self.leftview = QtGui.QGraphicsView()
		self.rightview = QtGui.QGraphicsView()
 
		self.leftview.setFixedSize(550,600)
		self.rightview.setFixedSize(550,600)
 
		self.leftview.setFrameStyle(QtGui.QFrame.NoFrame)
		self.rightview.setFrameStyle(QtGui.QFrame.NoFrame)
		self.leftview.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
		self.leftview.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
		self.rightview.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
		self.rightview.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
 
		leftrect = QtCore.QRectF(self.leftview.rect())
		rightrect = QtCore.QRectF(self.rightview.rect())
		leftrect.adjust(1,1,-1,-1)
		rightrect.adjust(1,1,-1,-1)
 
		self.leftscene = TEMDrawer.DiagramScene(leftrect)
		self.rightscene = TEMDrawer.DiagramScene(rightrect)
 
		self.leftview.setScene(self.leftscene)
		self.rightview.setScene(self.rightscene)
		self.qcheckbox = QtGui.QCheckBox("Hide convergences")
		self.reflexInfo = QReflexionReportWidget()
		self.qlist = QTaskList(self.reflexInfo,self.conceptual_tasklist,self.impltasklist,self.leftscene,self.rightscene,self,self.qcheckbox)
		self.qinfow = TEMDrawer.TEMInfoWidget()
 
		self.innerlayout.addWidget(self.leftview)
		self.innerlayout.addWidget(self.rightview)
 
		self.testwidget = QtGui.QWidget()
		self.testwidget.setLayout(self.innerlayout)
		self.splitterwidget = QtGui.QSplitter(0)
		self.splitterwidget.addWidget(self.testwidget)
		self.splitterwidget.addWidget(self.reflexInfo)
 
		self.rightlayout.addWidget(self.qlist)
		self.qline = QtGui.QLineEdit()
		self.rightlayout.addWidget(QtGui.QLabel("Filter:"))
		self.rightlayout.addWidget(self.qline)
		self.rightlayout.addWidget(self.qinfow)
 
		self.rightlayout.addWidget(self.qcheckbox)
		self.connect(self.qcheckbox, QtCore.SIGNAL('stateChanged(int)'), self.reflexInfo.convergences_toggled)
		self.connect(self.qline, QtCore.SIGNAL('textChanged(QString)'), self.qlist.filter_items)
		#self.leftlayout.addLayout(self.innerlayout)
		self.mainlayout.addWidget(self.splitterwidget,5)
		#self.mainlayout.addLayout(self.leftlayout)
		self.mainlayout.addLayout(self.rightlayout)
		self.setLayout(self.mainlayout)		
 
		self.draw_lanes(self.userlist,self.leftscene,0)
		self.draw_lanes(self.userlist,self.rightscene,1)

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