Added radio buttons example

ImgMplCanvas.py

@@ -58,7 +58,7 @@ def displayImageTk(fn, imageName='image'):
  """
  This is the easy pyplot way to display an image.
  It also has some nice features, like panning and zooming.
- It is not the PySide way of doing things,
+ It is not as extensible as PySide,
  but it makes a nice reference for debugging.
  """
  print("Display image: " + str(fn) + " using Tk")
@@ -69,7 +69,8 @@ def displayImageTk(fn, imageName='image'):
  def displayImagePyside(fn, imageName='image'):
  """
  This is the simplest way to use PySide to display an image in a Figure subplot.
- There is no layout code, other than hand-coding based on the size of the image.
+ There is no layout code, other than hand-coding the FigureCanvas size and
+ QMainWindow size based on the size of the image.
  """
  print("Display image: " + str(fn) + " using PySide")
  img= skimage.data.imread(fn)
@@ -149,6 +150,81 @@ def displayImagePysideFrame(fn, imageName='image'):
 
  sys.exit(app.exec_())
 
+ def displayImagePysideFrameButtons(fn, imageName='image'):
+ """
+ This adds a QFrame and QLabel to the PySide interface, and a simple layout.
+ It also adds buttons to manipulate the image.
+ """
+ print("Display image: " + str(fn) + " with frame and label using PySide")
+ img= skimage.data.imread(fn)
+
+ app = QApplication(sys.argv)
+
+ height, width, depth= shape(img)
+ fig = Figure(figsize=(width, height), dpi=100)
+
+ axes = fig.add_subplot(111)
+ axes.set_xlim(0, width)
+ axes.set_ylim(0, height)
+ axes.imshow(img)
+
+ main = QtGui.QMainWindow()
+ main.setGeometry(0, 100, 200+int(width*1.4), 200+int(height*1.4))
+ main.setWindowTitle(imageName)
+
+ frame= QtGui.QFrame()
+ frame.setFrameShape(QtGui.QFrame.StyledPanel)
+ frame.setParent(main)
+
+ canvas = FigureCanvas(fig)
+ canvas.setParent(frame)
+ canvas.setMinimumSize(100+int(width*1.4), 100+int(height*1.4))
+
+ label= QtGui.QLabel()
+ # when calling QtGui.QLabel.setText() with a string, must use unicode eg u"myname"
+ label.setText(imageName)
+ label.setAlignment(Qt.AlignHCenter)
+ label.setParent(frame)
+
+ # Buttons take a lot of code!
+ buttonGroup = QtGui.QButtonGroup()
+ button1= QtGui.QRadioButton("Img")
+ button2= QtGui.QRadioButton("Marker")
+ button3= QtGui.QRadioButton("Clear")
+ button4= QtGui.QRadioButton("Plot")
+
+ button1.setChecked(True)
+
+ buttonGroup.addButton(button1)
+ buttonGroup.addButton(button2)
+ buttonGroup.addButton(button3)
+ buttonGroup.addButton(button4)
+
+ groupBox = QtGui.QGroupBox("Canvas Control Buttons")
+
+ vbox = QHBoxLayout()
+ vbox.addWidget(button1)
+ vbox.addWidget(button2)
+ vbox.addWidget(button3)
+ vbox.addWidget(button4)
+ vbox.addStretch(1)
+ groupBox.setLayout(vbox)
+
+ layout = QtGui.QVBoxLayout()
+ layout.addWidget(canvas)
+ layout.addWidget(label)
+ layout.addWidget(groupBox)
+
+ layout.setStretchFactor(canvas, 1.0)
+
+ frame.setLayout(layout)
+ frame.show()
+
+ main.setCentralWidget(frame)
+ main.show()
+
+ sys.exit(app.exec_())
+
 
  # The test starts here
  print("ImgMplCanvas class test")
@@ -166,10 +242,14 @@ def displayImagePysideFrame(fn, imageName='image'):
 
  useTk= False
  useFrame= False
+ useNoFrame= False
 
  if useTk:
  displayImageTk(fn, imageName=name)
  elif useFrame:
  displayImagePysideFrame(fn, imageName=name)
- else:
+ elif useNoFrame:
  displayImagePyside(fn, imageName=name)
+ else:
+ displayImagePysideFrameButtons(fn, imageName=name)
+