'qt designer qgraphicsview load image

I've build a GUI using Qt Designer, the Gui have a central widget which is a horizontal layout, and children which are QGraphicView (name leftImage and RightImage)

In the menu bar I've created two buttons - "open left image" and "open right image"

I've manage to use this buttons (it opens the open dialog and choose the right file correctly), but I can't see the images on the GUI.

This is my code:

#!/usr/bin/env python
import sys
from PyQt4 import QtCore, QtGui, uic
 
form_class = uic.loadUiType("try2gui.ui")[0]                 
 
class MyWindowClass(QtGui.QMainWindow, form_class):
    def __init__(self, parent=None):
        QtGui.QMainWindow.__init__(self, parent)       
        self.setupUi(self)
 
        self.initMenu()

        image = QtGui.QImage('image.pgm')

        self.LeftImage = QtGui.QPixmap(image)
        self.RightImage  = QtGui.QPixmap(image)
        self.show()

    def initMenu (self):
        self.actionOpen_Left.triggered.connect(self.open_left)
        self.actionOpen_Right.triggered.connect(self.open_Right)
        self.actionExit.triggered.connect(self.close)

    def open_left(self):
        fileName = QtGui.QFileDialog.getOpenFileName(self, "Open File", QtCore.QDir.currentPath())
        if fileName:
            image = QtGui.QImage(fileName)
            if image.isNull():
                QtGui.QMessageBox.information(self, "Image Viewer", "Cannot load %s." % fileName)
                return

        self.centralwidget.LeftImage  = QtGui.QPixmap(image)    
        self.scaleFactor = 1.0
        print fileName

    def open_Right(self):
        fileName = QtGui.QFileDialog.getOpenFileName(self, "Open File", QtCore.QDir.currentPath())
        if fileName:
            image = QtGui.QImage(fileName)
            if image.isNull():
                QtGui.QMessageBox.information(self, "Image Viewer", "Cannot load %s." % fileName)
                return

        self.RightImage  = QtGui.QPixmap(image)
        self.scaleFactor = 1.0
        
if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    myWindow = MyWindowClass(None)
    myWindow.show()

    app.exec_()

How can I update the GUI to see the loaded Image?

Solution 1:^[1]

I've found a solution:

I've changed the open-left function to be: (same goes to open_right):

def open_left(self):
    fileName = QtGui.QFileDialog.getOpenFileName(self, "Open File", QtCore.QDir.currentPath())
    if fileName:
        image = QtGui.QImage(fileName)
        if image.isNull():
            QtGui.QMessageBox.information(self, "Image Viewer", "Cannot load %s." % fileName)
            return

#added this code:
        leftPixelMap = QtGui.QPixmap(fileName)
        lable = QtGui.QLabel(self.LeftImage)
        lable.setPixmap(leftPixelMap)
        lable.show()

    self.scaleFactor = 1.0

and it works now

Solution 2:^[2]

In your question you used a QGraphicView, which isn't the right widget for showing a picture.

As you found as a solution, use a QLabel and set a pixmap.

Also, self.LeftImage = QtGui.QPixmap(image) isn't working.
This should be self.LeftImage.setPixmap(QtGui.QPixmap(image))

And: in your "open" routines, refer to the widget by self.LeftImage - not by .centralwidget, as you assign them to the central widget, but they are not owned (in hierarchy) to them.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Shai Zarzewski
Solution 2	ngulam

'qt designer qgraphicsview load image

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]