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Merge two pieces of code

Scheduled Pinned Locked Moved Unsolved Qt for Python
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  • J john_hobbyist

    Hello,

    How do I insert this code:

    import sys
    
    from PySide2.QtCore import QRect
    from PySide2.QtCore import QSize
    from PySide2.QtWidgets import QWidget
    from PySide2.QtWidgets import QRubberBand
    from PySide2.QtWidgets import QApplication
    
    class Widget(QWidget):
        def __init__(self, parent=None):
            super().__init__(parent)
    
            self.rubberBand = None
            self.origin = None
    
        def mousePressEvent(self, event):
            self.origin = event.pos()
            if not self.rubberBand:
                self.rubberBand = QRubberBand(QRubberBand.Rectangle, self)
            self.rubberBand.setGeometry(QRect(self.origin, QSize()))
            self.rubberBand.show()
    
        def mouseMoveEvent(self, event):
            self.rubberBand.setGeometry(QRect(self.origin, event.pos()).normalized())
    
        def mouseReleaseEvent(self, event):
            self.rubberBand.hide()
            # determine selection, for example using QRect.intersects()
            # and QRect.contains().
    
    if __name__ == "__main__":
        app = QApplication(sys.argv)
        widget = Widget()
        widget.show()
        sys.exit(app.exec_())
    

    inside this code:

    code_2

    so that when I insert an image to be able to select a part of the image with a red rectangle. I tried inserting the code under this class without any success:

    class MyMplCanvas(mpl_qt.FigureCanvasQTAgg):
    

    Basically I get this error:

    Traceback (most recent call last):
      File "code.py", line 653, in <module>
        window = OrthoView()
      File "code.py", line 279, in __init__
        self.plotCanvas = MyMplCanvas(self)
      File "code.py", line 109, in __init__
        super().__init__(parent)
      File "/home/john/Desktop/test/venv/lib/python3.8/site-packages/matplotlib/backends/backend_qt5agg.py", line 21, in __init__
        super().__init__(figure=figure)
      File "/home/john/Desktop/test/venv/lib/python3.8/site-packages/matplotlib/backends/backend_qt5.py", line 214, in __init__
        super().__init__(figure=figure)
      File "/home/john/Desktop/test/venv/lib/python3.8/site-packages/matplotlib/backend_bases.py", line 1722, in __init__
        figure.set_canvas(self)
    AttributeError: 'OrthoView' object has no attribute 'set_canvas'
    

    Any idea/help?

    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by
    #2

    @john_hobbyist
    I don't know what you mean or intend by "insert ... inside this code".

    Your Widget(QWidget) declares a standalone, new class named Widget which derives from QWidget and overrides some methods. But your OrthoView derives from QMainWindow, and has nothing to do with that Widget class.

    Depending on what you are trying to achieve, maybe you want to move the methods you have overridden in Widget so that they are methods in your OrthoView?

    1 Reply Last reply
    3
    • J Offline
      J Offline
      john_hobbyist
      wrote on last edited by
      #3
      This post is deleted!
      1 Reply Last reply
      0
      • J Offline
        J Offline
        john_hobbyist
        wrote on last edited by john_hobbyist
        #4

        @JonB: Ok, I will try it!! Thank you...

        UPDATE: I did what you suggest. I got this error (which I am trying to solve):

        Traceback (most recent call last):
          File "code.py", line 505, in <module>
            widget = Widget()
        NameError: name 'Widget' is not defined
        

        it indicates the error in the line

        widget = Widget()
        

        from here:

        if __name__ == "__main__":
            app = QApplication(sys.argv)
            widget = Widget()
            widget.show()
            sys.exit(app.exec_())
        
        mrjjM 1 Reply Last reply
        0
        • J john_hobbyist

          @JonB: Ok, I will try it!! Thank you...

          UPDATE: I did what you suggest. I got this error (which I am trying to solve):

          Traceback (most recent call last):
            File "code.py", line 505, in <module>
              widget = Widget()
          NameError: name 'Widget' is not defined
          

          it indicates the error in the line

          widget = Widget()
          

          from here:

          if __name__ == "__main__":
              app = QApplication(sys.argv)
              widget = Widget()
              widget.show()
              sys.exit(app.exec_())
          
          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #5

          @john_hobbyist
          hi
          But what did you do ?
          Did you move the
          def mousePressEvent(self, event):
          def mousePressEvent(self, event):
          def mouseReleaseEvent(self, event):

          to OrthoView class ?

          J 1 Reply Last reply
          1
          • mrjjM mrjj

            @john_hobbyist
            hi
            But what did you do ?
            Did you move the
            def mousePressEvent(self, event):
            def mousePressEvent(self, event):
            def mouseReleaseEvent(self, event):

            to OrthoView class ?

            J Offline
            J Offline
            john_hobbyist
            wrote on last edited by john_hobbyist
            #6

            @mrjj Yes

            And this:

            class OrthoView(QMainWindow):
                def __init__(self, parent=None):      
                    super().__init__(parent)
                    self.rubberBand = None
                    self.origin = None
                .  .  .
            

            and this:

             .  .  .
            if __name__ == "__main__":
                app = QApplication(sys.argv)
                icon = QIcon(os.path.join(selfDir, '_static', 'orthoview.ico'))
                app.setWindowIcon(icon)
                window = OrthoView()
                window.show()
                widget = Widget()
                widget.show()
                sys.exit(app.exec_())
            
            mrjjM 1 Reply Last reply
            0
            • J john_hobbyist

              @mrjj Yes

              And this:

              class OrthoView(QMainWindow):
                  def __init__(self, parent=None):      
                      super().__init__(parent)
                      self.rubberBand = None
                      self.origin = None
                  .  .  .
              

              and this:

               .  .  .
              if __name__ == "__main__":
                  app = QApplication(sys.argv)
                  icon = QIcon(os.path.join(selfDir, '_static', 'orthoview.ico'))
                  app.setWindowIcon(icon)
                  window = OrthoView()
                  window.show()
                  widget = Widget()
                  widget.show()
                  sys.exit(app.exec_())
              
              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #7

              Hi
              Then you dont need the lines
              widget = Widget()
              widget.show()

              as that was the "old" class and now all code that it had is moved to OrthoView
              so those lines are not needed anymore.

              1 Reply Last reply
              1
              • J Offline
                J Offline
                john_hobbyist
                wrote on last edited by
                #8

                Ok, the application runs, but when I try to choose area on the image with the mouse, I do not see any rectangle from rubberband...

                mrjjM 1 Reply Last reply
                0
                • J john_hobbyist

                  Ok, the application runs, but when I try to choose area on the image with the mouse, I do not see any rectangle from rubberband...

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by mrjj
                  #9

                  @john_hobbyist
                  Hi
                  Yes. but now you are in training of moving the code around :)

                  I think the reason that it don't work is that the OrthoView is not the one that stuff is drawn on.
                  I think it might be the Canvas class.
                  Which means that canvas class might cover the MainWindow (OrthoView)
                  and hence it gets all the mouse events.
                  But you knows best. What class actually display the image ?

                  alt text

                  J 1 Reply Last reply
                  2
                  • mrjjM mrjj

                    @john_hobbyist
                    Hi
                    Yes. but now you are in training of moving the code around :)

                    I think the reason that it don't work is that the OrthoView is not the one that stuff is drawn on.
                    I think it might be the Canvas class.
                    Which means that canvas class might cover the MainWindow (OrthoView)
                    and hence it gets all the mouse events.
                    But you knows best. What class actually display the image ?

                    alt text

                    J Offline
                    J Offline
                    john_hobbyist
                    wrote on last edited by
                    #10

                    @mrjj: Yes this is the canvas (image). Can I color the rectangle red?

                    mrjjM 1 Reply Last reply
                    0
                    • J john_hobbyist

                      @mrjj: Yes this is the canvas (image). Can I color the rectangle red?

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #11

                      @john_hobbyist
                      Hi
                      I drew on top of a picture i found.
                      i dont have python so i cant run it.

                      Anyway, what class draws the image ?

                      You must have teh mouse function in that class. since its not OrthoView
                      it seems. it must be another class.

                      I tried to read the code from
                      https://github.com/Axel-Erfurt/OrthoViewLite/blob/main/OrthoViewLite.py

                      but it seems to set "Widget" as central widget so Im not sure that code is
                      current. Did it used to be that class MyMplCanvas ?

                      J 1 Reply Last reply
                      1
                      • mrjjM mrjj

                        @john_hobbyist
                        Hi
                        I drew on top of a picture i found.
                        i dont have python so i cant run it.

                        Anyway, what class draws the image ?

                        You must have teh mouse function in that class. since its not OrthoView
                        it seems. it must be another class.

                        I tried to read the code from
                        https://github.com/Axel-Erfurt/OrthoViewLite/blob/main/OrthoViewLite.py

                        but it seems to set "Widget" as central widget so Im not sure that code is
                        current. Did it used to be that class MyMplCanvas ?

                        J Offline
                        J Offline
                        john_hobbyist
                        wrote on last edited by
                        #12

                        @mrjj: I do not know.

                        When I put the rubberband methonds on class

                        MyMplCanvas(mpl_qt.FigureCanvasQTAgg):
                        

                        I get the errors I posted on first post.

                        When I put the code on class:

                        class OrthoView(QMainWindow):
                        

                        I do not get any errors but the execution never reach the rubbeband methods. I identified it with "prints" throughout the code.

                        mrjjM 1 Reply Last reply
                        0
                        • J john_hobbyist

                          @mrjj: I do not know.

                          When I put the rubberband methonds on class

                          MyMplCanvas(mpl_qt.FigureCanvasQTAgg):
                          

                          I get the errors I posted on first post.

                          When I put the code on class:

                          class OrthoView(QMainWindow):
                          

                          I do not get any errors but the execution never reach the rubbeband methods. I identified it with "prints" throughout the code.

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #13

                          Hi
                          its odd.
                          what is mpl_qt.FigureCanvasQTAgg ?

                          is that a Widget class ?

                          I cant find the source of it.

                          J 1 Reply Last reply
                          1
                          • mrjjM mrjj

                            Hi
                            its odd.
                            what is mpl_qt.FigureCanvasQTAgg ?

                            is that a Widget class ?

                            I cant find the source of it.

                            J Offline
                            J Offline
                            john_hobbyist
                            wrote on last edited by
                            #14

                            @mrjj I do not know. However, the initial code (where the one we talk about was based) is here:
                            https://github.com/kklmn/OrthoView/blob/master/OrthoView.py

                            1 Reply Last reply
                            0
                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #15

                              Hi,

                              The method override must be added to the widget that you click your mouse on. That is not the main window.

                              As for your original error, you copied the name of the class but not its implementation hence the error. QMainWindow does indeed not have a set_canvas method.

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                              J 1 Reply Last reply
                              1
                              • SGaistS SGaist

                                Hi,

                                The method override must be added to the widget that you click your mouse on. That is not the main window.

                                As for your original error, you copied the name of the class but not its implementation hence the error. QMainWindow does indeed not have a set_canvas method.

                                J Offline
                                J Offline
                                john_hobbyist
                                wrote on last edited by
                                #16

                                @SGaist Thanks! Can you be more specific? Thanks...

                                1 Reply Last reply
                                0
                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #17

                                  About what ?

                                  Interested in AI ? www.idiap.ch
                                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                  J 1 Reply Last reply
                                  1
                                  • SGaistS SGaist

                                    About what ?

                                    J Offline
                                    J Offline
                                    john_hobbyist
                                    wrote on last edited by
                                    #18

                                    @SGaist

                                    Both on

                                    MyMplCanvas(mpl_qt.FigureCanvasQTAgg)
                                    

                                    and

                                    OrthoView(QMainWindow) 
                                    

                                    the methods do not run.
                                    So where else should I put the methods?

                                    "QMainWindow does indeed not have a set_canvas method." ---> What should I do in this case? I am based on ready code, I cannot build a set_canvas method

                                    Thanks!

                                    1 Reply Last reply
                                    0
                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #19

                                      Please show the exact code you have currently.

                                      Interested in AI ? www.idiap.ch
                                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                      1 Reply Last reply
                                      1
                                      • J Offline
                                        J Offline
                                        john_hobbyist
                                        wrote on last edited by john_hobbyist
                                        #20

                                        @SGaist

                                        # -*- coding: utf-8 -*-
                                        """
                                        OrthoViewLite.py
                                        based on https://github.com/kklmn/OrthoView by Konstantin Klementiev
                                        modified by Axel Schneider (added File Selector)
                                        https://github.com/Axel-Erfurt
                                        """
                                        
                                        __author__ = "Konstantin Klementiev"
                                        __versioninfo__ = (1, 0, 2)
                                        __version__ = '.'.join(map(str, __versioninfo__))
                                        __date__ = "8 Feb 2020"
                                        __license__ = "MIT license"
                                        
                                        import os
                                        print("1")
                                        import sys
                                        print("2")
                                        import cv2
                                        print("3")
                                        from matplotlib.figure import Figure
                                        print("4")
                                        import numpy as np
                                        print("5")
                                        from PyQt5.QtGui import QIcon
                                        print("6")
                                        from PyQt5.QtWidgets import (QMainWindow, QApplication, QWidget,QAction, QFileDialog, QMenu, 
                                                                     QToolBar, QHBoxLayout, QTreeView, QFileSystemModel, QSizePolicy, 
                                                                     QMessageBox)
                                        print("7")
                                        from PyQt5.QtCore import Qt, QDir, QStandardPaths, QFileInfo
                                        print("8")
                                        import matplotlib.backends.backend_qt5agg as mpl_qt
                                        print("9")
                                        
                                        #########################################################################
                                        import rubberband
                                        import sys
                                        """
                                        from PySide2.QtCore import QRect
                                        from PySide2.QtCore import QSize
                                        from PySide2.QtWidgets import QWidget
                                        from PySide2.QtWidgets import QRubberBand
                                        from PySide2.QtWidgets import QApplication
                                        import PySide2
                                        """
                                        
                                        from PyQt5 import QtWidgets
                                        from PyQt5 import QtCore 
                                        
                                        
                                        from PyQt5.QtWidgets import * 
                                        from PyQt5 import QtCore, QtGui
                                        from PyQt5.QtGui import * 
                                        from PyQt5.QtCore import * 
                                        ###########################################################################
                                        
                                        try:
                                            from ConfigParser import ConfigParser
                                        except ImportError:
                                            from configparser import ConfigParser
                                        
                                        print("10")
                                        selfDir = os.path.dirname(__file__)
                                        print("11")
                                        iniApp = (os.path.join(selfDir, 'OrthoViewList.ini'))
                                        print("12")
                                        config = ConfigParser(
                                            dict(pos='[0, 0]', corners='[None]*4', scalex=0, scaley=0))
                                        print("13")
                                        config.add_section('window')
                                        print("14")
                                        config.read(iniApp)
                                        print("15")
                                        
                                        def write_config():
                                            print("16")
                                            with open(iniApp, 'w+') as cf:
                                                print("17")
                                                config.write(cf)
                                                print("18")
                                        
                                        
                                        class MyToolBar(mpl_qt.NavigationToolbar2QT):
                                            def set_message(self, s):
                                                print("19")
                                                try:
                                                    print("20")
                                                    sstr = s.split()
                                                    print("21")
                                                    while len(sstr) > 5:
                                                        print("22")
                                                        del sstr[0]
                                                        print("23")
                                                    x, y = float(sstr[0][2:]), float(sstr[1][2:])
                                                    print("24")
                                                    s = f'x = {x:.2f}\ny = {y:.2f}'
                                                    print("25")
                                                except Exception:
                                                    print("26")
                                                    pass
                                                print("27")
                                        
                                                if self.coordinates:
                                                    print("28")
                                                    self.locLabel.setText(s)
                                                    print("29")
                                        
                                        
                                        class MyMplCanvas(mpl_qt.FigureCanvasQTAgg):
                                            def __init__(self, parent=None):
                                                print("30")
                                                self.fig = Figure()
                                                print("31")
                                                self.fig.patch.set_facecolor('None')
                                                print("32")
                                                super(MyMplCanvas, self).__init__(self.fig)
                                                print("33")
                                                self.setParent(parent)
                                                print("34")
                                                self.updateGeometry()
                                                print("35")
                                                self.setupPlot()
                                                print("36")
                                                self.mpl_connect('button_press_event', self.onPress)
                                                print("37")
                                                self.img = None
                                                print("38")
                                                self.setContextMenuPolicy(Qt.CustomContextMenu)
                                                print("39")
                                                self.mouseClickPos = None
                                                print("40")
                                                self.menu = QMenu()
                                                print("41")
                                        
                                        
                                            def setupPlot(self):
                                                print("42")
                                                rect = [0., 0., 1., 1.]
                                                print("43")
                                                self.axes = self.fig.add_axes(rect)
                                                print("44")
                                                self.axes.axis("off")
                                                print("45")
                                        
                                            def imshow(self, img):
                                                print("46")
                                                if self.img is None:
                                                    print("47")
                                                    self.img = self.axes.imshow(img)
                                                    print("48")
                                                else:
                                                    print("49")
                                                    prev = self.img.get_array()
                                                    print("50")
                                                    self.img.set_data(img)
                                                    print("51")
                                                    if prev.shape != img.shape:
                                                        print("52")
                                                        self.img.set_extent(
                                                            [-0.5, img.shape[1]-0.5, img.shape[0]-0.5, -0.5])
                                                        print("53")
                                                        self.axes.set_xlim((0, img.shape[1]))
                                                        print("54")
                                                        self.axes.set_ylim((img.shape[0], 0))
                                                        print("55")
                                                        self.toolbar.update()
                                                        print("56")
                                                self.draw()
                                                print("57")
                                        
                                            def onPress(self, event):
                                                print("58")
                                                if (event.xdata is None) or (event.ydata is None):
                                                    print("59")
                                                    self.mouseClickPos = None
                                                    print("60")
                                                    return
                                                print("61")
                                                self.mouseClickPos = int(round(event.xdata)), int(round(event.ydata))
                                                print("62")
                                        
                                        
                                        class OrthoView(QMainWindow):
                                            def __init__(self, parent=None):
                                                
                                                ####################################
                                                super().__init__(parent)
                                        
                                                self.rubberBand = None
                                                self.origin = None
                                                ####################################
                                        
                                                print("63")
                                                super(OrthoView, self).__init__(parent)
                                                print("64")
                                                self.setWindowTitle('OrthoViewLite')
                                                print("65")
                                                self.setStyleSheet("QMainWindow {background: #e9e9e9;} QHBoxLayout \
                                                                    {background: #e9e9e9;} QTreeView {background: #e9e9e9;}  \
                                                                    FigureCanvasQTAgg {background: #e9e9e9;} QToolBar {border: 0px;}")
                                                print("66")
                                                self.setMinimumSize(500, 350)
                                                print("67")
                                                self.image_file_path = ""   
                                                print("68")
                                                if config.has_option('window', 'win_left') and config.has_option('window', 'win_top') \
                                                    and config.has_option('window', 'win_width') and config.has_option('window', 'win_height'):
                                                    left = int(config.get('window', 'win_left'))
                                                    top = int(config.get('window', 'win_top'))
                                                    width = int(config.get('window', 'win_width'))
                                                    height = int(config.get('window', 'win_height'))
                                                    print("69")
                                                    self.setGeometry (left, top, width, height)
                                                    print("70")
                                                print("71")
                                                self.home_path = QStandardPaths.standardLocations(QStandardPaths.PicturesLocation)[0]
                                                print("72")
                                                self.tb = QToolBar("File")
                                                print("73")
                                                empty = QWidget()
                                                print("74")
                                                empty.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
                                                print("75")
                                                self.tb.addWidget(empty)
                                                print("76")
                                                open_btn = QAction("Open Image File", self, triggered=self.openFile)
                                                print("77")
                                                open_btn.setIcon(QIcon.fromTheme("document-open"))
                                                print("78")
                                                self.tb.addAction(open_btn)
                                                print("79")
                                                go_up_btn = QAction("one level up", self, triggered=self.oneUp)
                                                print("80")
                                                go_up_btn.setIcon(QIcon.fromTheme("go-up"))
                                                print("81")
                                                self.tb.addAction(go_up_btn)
                                                print("82")
                                                go_home_btn = QAction("go to home", self, triggered=self.goHome)
                                                print("83")
                                                go_home_btn.setIcon(QIcon.fromTheme("go-home"))
                                                print("84")
                                                self.tb.addAction(go_home_btn)
                                                print("85")
                                                stretch = QWidget()
                                                print("86")
                                                stretch.setFixedWidth(200)
                                                print("87")
                                                self.tb.addWidget(stretch)
                                                print("88")
                                        
                                                self.plotCanvas = MyMplCanvas(self)
                                                print("89")
                                                self.plotCanvas.setSizePolicy(
                                                    QSizePolicy.Expanding, QSizePolicy.Expanding)
                                                print("90")
                                                self.toolbar = MyToolBar(self.plotCanvas, self)
                                                print("91")
                                                for action in self.toolbar.findChildren(QAction):
                                                    if action.text() in ['Customize', 'Subplots']:
                                                        action.setVisible(False)
                                                        print("92")
                                                self.toolbar.locLabel.setAlignment(Qt.AlignRight)
                                                print("93")
                                                self.toolbar.locLabel.setFixedWidth(200)
                                                print("94")
                                                self.tb.setContextMenuPolicy(Qt.PreventContextMenu)
                                                print("95")
                                                self.tb.setMovable(False)
                                                print("96")
                                                self.tb.setAllowedAreas(Qt.TopToolBarArea)
                                                print("97")
                                                self.toolbar.setContextMenuPolicy(Qt.PreventContextMenu)
                                                print("98")
                                                self.toolbar.setMovable(False)
                                                print("99")
                                                self.toolbar.setAllowedAreas(Qt.TopToolBarArea)
                                                print("100")
                                                self.addToolBar(self.toolbar)
                                                print("101")
                                                self.addToolBar(self.tb)
                                                print("102")
                                                
                                                mylayout = QHBoxLayout()
                                                print("103")
                                                mylayout.addWidget(self.plotCanvas)
                                                print("104")
                                                
                                                self.mylistwidget = QTreeView()
                                                print("105")
                                                self.mylistwidget.setFixedWidth(300)
                                                print("106")
                                                mylayout.addWidget(self.mylistwidget)
                                                print("107")
                                                
                                                self.fileModel = QFileSystemModel()
                                                print("108")
                                                self.fileModel.setFilter(QDir.NoDotAndDotDot | QDir.Files | QDir.AllDirs)
                                                print("109")
                                                self.fileModel.setRootPath(QDir.homePath())
                                                print("110")
                                                
                                                self.mylistwidget.setModel(self.fileModel)
                                                print("111")
                                                self.mylistwidget.setRootIndex(self.fileModel.index(self.home_path))
                                                print("112")
                                                #self.mylistwidget.setRootIndex(self.fileModel.index("/"))
                                                print("113")
                                                self.mylistwidget.selectionModel().selectionChanged.connect(self.on_clicked)
                                                print("114")
                                                self.mylistwidget.clicked.connect(self.tree_clicked)
                                                print("115")
                                                col = [1, 2, 3, 4]
                                                print("116")
                                                for c in col:
                                                    print("117")
                                                    self.mylistwidget.hideColumn(c)
                                                    print("118")
                                                mywidget = QWidget()
                                                print("119")
                                                mywidget.setLayout(mylayout)
                                                print("120")
                                                self.setCentralWidget(mywidget)
                                                print("121")
                                                self.myfilter = ["tif", "tiff", "png", "jpg"]
                                                print("122")
                                                self.treefilter = ["*.tif", "*.tiff", "*.png", "*.jpg"]
                                                print("123")
                                                self.fileModel.setNameFilters(self.treefilter)
                                                print("124")
                                                self.fileModel.setNameFilterDisables(False)
                                                print("125")
                                                self.mylistwidget.setFocus()   
                                                print("126")
                                                self.mylistwidget.resizeColumnToContents(1)
                                                print("127")
                                        
                                            def goHome(self):
                                                print("128")
                                                self.mylistwidget.setRootIndex(self.fileModel.index(self.home_path)) 
                                                print("129")
                                               
                                            def oneUp(self):
                                                print("130")
                                                self.mylistwidget.setRootIndex(self.mylistwidget.rootIndex().parent()) 
                                                print("131")
                                        
                                            def on_clicked(self):
                                                print("132")
                                                path = self.fileModel.fileInfo(self.mylistwidget.currentIndex()).absoluteFilePath()
                                                print("133")
                                                if QDir.exists(QDir(path)):
                                                    print("134")
                                                    print(path, "is folder")
                                                    print("135")
                                                else:
                                                    print("136")
                                                    if QFileInfo(path).suffix() in self.myfilter:
                                                        print("137")
                                                        if not os.stat(path).st_size == 0:
                                                            print("138")
                                                            print(path)
                                                            print("139")
                                                            self.image_file_path = path
                                                            print("140")
                                                            self.updateFrame()
                                                            print("141")
                                                        else:
                                                            print("142")
                                                            print("file not exists or has size 0")
                                                            print("143")
                                                            self.msgbox("File is empty (size 0)") 
                                                            print("144")
                                                        
                                            def tree_clicked(self):
                                                print("145")
                                                index = self.mylistwidget.currentIndex()
                                                print("146")
                                                if not self.mylistwidget.isExpanded(index):
                                                    print("147")
                                                    self.mylistwidget.setExpanded(index, True) 
                                                    print("148")
                                                    self.mylistwidget.resizeColumnToContents(0)
                                                    print("149")
                                                else:
                                                    print("150")
                                                    self.mylistwidget.setExpanded(index, False) 
                                                    print("151")
                                                    self.mylistwidget.resizeColumnToContents(0)
                                                    print("152")
                                                
                                            def openFile(self):
                                                print("153")
                                                print("open File Dialog")
                                                print("154")
                                                path, _ = QFileDialog.getOpenFileName(self, "Open File", self.image_file_path,"Image Files (*.tif *.tiff *.png *.jpg)")
                                                print("155")
                                                if path:
                                                    print("156")
                                                    if os.path.isfile(path) and not os.stat(path).st_size == 0:
                                                        print("157")
                                                        self.image_file_path = path
                                                        print("158")
                                                        print("file exists:",self.image_file_path)
                                                        print("159")
                                                        self.updateFrame()
                                                        print("160")
                                                    else:
                                                        print("161")
                                                        print("file not exists or has size 0")      
                                                        print("162")
                                                        self.msgbox("File is empty (size 0)")    
                                                        print("163")
                                        
                                        
                                            def getFrame(self, path):
                                                print("170")
                                                if os.path.isfile(path):
                                                    print("171")
                                                    frame = cv2.imread(path, 1)
                                                    print("172")
                                                    if not np.shape(frame) == ():
                                                        print("173")
                                                        self.img = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
                                                        print("174")
                                                    else:
                                                        print("175")
                                                        print("Error!")
                                                        print("176")
                                                        frame = cv2.imread(path, cv2.IMREAD_UNCHANGED)
                                                        print("177")
                                                        self.img = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
                                                        print("178")
                                                else:
                                                    print("179")
                                                    self.openFile()
                                                    print("180")
                                        
                                            def updateFrame(self):
                                                print("181")
                                                self.getFrame(self.image_file_path)
                                                print("182")
                                                overlay = self.img.copy()
                                                print("183")
                                                alpha = 0.75  # transparency factor
                                                print("184")
                                                imageNew = cv2.addWeighted(overlay, alpha, self.img, 1-alpha, 0)
                                                print("185")
                                                self.plotCanvas.imshow(imageNew)
                                                print("186")
                                                
                                            def closeEvent(self, e):
                                                print("187")
                                                config.set('window', 'win_left', str(self.geometry().x()))
                                                print("188")
                                                config.set('window', 'win_top', str(self.geometry().y()))
                                                print("189")
                                                config.set('window', 'win_width', str(self.geometry().width()))
                                                print("190")
                                                config.set('window', 'win_height', str(self.geometry().height()))
                                                print("191")
                                                
                                                with open(iniApp, 'w+') as cf:
                                                    print("192")
                                                    config.write(cf)
                                                    print("193")
                                        
                                            def msgbox(self, message):
                                                print("194")
                                                msg = QMessageBox(2, "Error", message, QMessageBox.Ok)
                                                print("195")
                                                msg.exec()
                                                print("196")
                                        	#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                                            def mousePressEvent(self, event):
                                                print("1000")
                                                self.origin = event.pos()
                                                print("1001")
                                                if not self.rubberBand:
                                                    print("1002")
                                                    self.rubberBand = QRubberBand(QRubberBand.Rectangle, self)
                                                    print("1003")
                                                self.rubberBand.setGeometry(QRect(self.origin, QSize()))
                                                print("1004")
                                                self.rubberBand.show()
                                                print("1005")
                                        
                                            def mouseMoveEvent(self, event):
                                                print("1006")
                                                self.rubberBand.setGeometry(QRect(self.origin, event.pos()).normalized())
                                                print("1007")
                                        
                                            def mouseReleaseEvent(self, event):
                                                print("1008")
                                                self.rubberBand.hide()
                                                print("1009")
                                                # determine selection, for example using QRect.intersects()
                                                # and QRect.contains().
                                        	#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                                        
                                        
                                        if __name__ == "__main__":
                                            print("197")
                                            app = QApplication(sys.argv)
                                            print("198")
                                            icon = QIcon(os.path.join(selfDir, '_static', 'orthoview.ico'))
                                            print("199")
                                            app.setWindowIcon(icon)
                                            print("200")
                                        
                                            window = OrthoView()
                                            print("201")
                                            window.show()
                                            print("202")
                                            #widget = Widget()
                                            #widget.show()
                                            sys.exit(app.exec_())
                                        
                                        
                                        1 Reply Last reply
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                                        • SGaistS Offline
                                          SGaistS Offline
                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #21

                                          As already suggested, the mouse handling methods for rubber shall not be in the MainWindow but in your class that shows the image.

                                          Interested in AI ? www.idiap.ch
                                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                          J 1 Reply Last reply
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