controling signals and events

src/pyqt_example.py

@@ -1,165 +1,160 @@
-import os
-import sip
-
-from PyQt4 import uic
-
-from PyQt4.QtCore import Qt
-from PyQt4.QtCore import pyqtSignal
-from PyQt4.QtCore import pyqtSlot
-
-from PyQt4.QtGui import QDialog
-from PyQt4.QtGui import QWidget
-from PyQt4.QtGui import QPushButton
-from PyQt4.QtGui import QLineEdit
-from PyQt4.QtGui import QVBoxLayout
-from PyQt4.QtGui import QMenu
-from PyQt4.QtGui import QCursor
-
-
-class ExampleDialog( QDialog ):
-    def __init__( self, parent ):
-        QDialog.__init__( self, parent )
-
-        self.setGeometry( 100, 100, 200, 100 )
-        self.setWindowTitle( "Hello World" )
-        self.setToolTip( "This is a <b>QWidget</b> widget" )
-
-        self.btn = QPushButton( "Log Text", self )
-        self.btn.setToolTip( "This is a <b>QPushButton</b> widget" )
-        self.btn.resize( self.btn.sizeHint() )
-        self.btn.clicked.connect( self.logText )
-
-        self.lineedit = QLineEdit( "Hello World", self )
-        self.lineedit.setToolTip( "Type Something" )
-
-        layout = QVBoxLayout( self )
-        layout.addWidget( self.lineedit )
-        layout.addWidget( self.btn )
-
-    def logText( self ):
-        Application.LogMessage( self.lineedit.text() )
-
-class ExampleSignalSlot( ExampleDialog ):
-    def __init__( self, parent ):
-        ExampleDialog.__init__( self,parent )
-        self.setWindowTitle( "Signal/Slot Example" )
-        self.lineedit.setText( "" )
-
-        # module containing sievents mapped to pyqtsignals
-        from sisignals import signals, muteSIEvent
-
-        # connect the siActivate signal to the activate slot
-        signals.siActivate.connect( self.activate )
-        muteSIEvent( "siActivate", False )
-
-        # connect the siPassChange signal to the passChanged slot
-        signals.siPassChange.connect( self.passChanged )
-        muteSIEvent( "siPassChange", False )
-
-    def activate( self, state = None ):
-        if state is not None:
-            if state:
-                self.lineedit.setText( "Welcome Back!" )
-            else:
-                self.lineedit.setText( "Good Bye!")
-
-    def passChanged( self, targetPass = "" ):
-        self.lineedit.setText( targetPass )
-
-    def closeEvent( self, event ):
-        # disconnect signals from slots when you close the widget
-        # muteSIEvent() can be used to mute the signals softimage events send
-        # but be careful if another widget exists and is using them
-        from sisignals import signals, muteSIEvent
-        signals.siActivate.disconnect( self.activate )
-        signals.siPassChange.disconnect( self.passChanged )  
-        #muteSIEvent( "siActivate", True )
-        #muteSIEvent( "siPassChange", True )
-
-class ExampleMenu( QMenu ):
-    def __init__( self, parent ):
-        QMenu.__init__( self, parent )
-
-        # add actions and a separator
-        hello = self.addAction("Print 'Hello!'")
-        self.addSeparator()	
-        world = self.addAction("Print 'World!'")
-
-        # connect to the individual action's signal
-        hello.triggered.connect( self.hello )
-        world.triggered.connect( self.world )
-
-        # connect to the menu level signal
-        self.triggered.connect( self.menuTrigger )
-
-    def hello( self ):
-        print( "Hello!" )
-
-    def world( self ):
-        print( "World!" )
-
-    def menuTrigger( self, action ):
-        if action.text() == "Print 'Hello!'":
-            print( "You clicked, Print 'Hello!'" )
-        elif action.text() == "Print 'World!'":
-            print( "You clicked, Print 'World!'" )
-
-class ExampleUIFile( QDialog ):
-    def __init__( self, parent, uifilepath ):
-        QDialog.__init__( self, parent )
-
-        # load ui file
-        self.ui = uic.loadUi( uifilepath, self )
-
-        # connect to the createCube function
-        self.ui.uiCreateCube.clicked.connect( self.createCube )
-
-    def createCube( self ):
-        cube = Application.CreatePrim("Cube", "MeshSurface", str(self.uiCubeName.text()), "")
-        cube.Length.Value = self.uiCubeLength.value()
-
-def XSILoadPlugin( in_reg ):
-    in_reg.Name = "PyQt_Example"
-    in_reg.Author = "Steven Caron"
-    in_reg.RegisterCommand( "ExampleDialog" )
-    in_reg.RegisterCommand( "ExampleSignalSlot" )
-    in_reg.RegisterCommand( "ExampleMenu" )
-    in_reg.RegisterCommand( "ExampleUIFile" )
-
-def ExampleDialog_Execute():
-    """a simple example dialog showing basic functionality of the pyqt for softimage plugin"""
-    sianchor = Application.getQtSoftimageAnchor()
-    sianchor = sip.wrapinstance( long(sianchor), QWidget )
-    dialog = ExampleDialog( sianchor )
-    dialog.show()
-
-def ExampleSignalSlot_Execute():
-    """a simple example showing softimage events triggering pyqt signals"""
-    sianchor = Application.getQtSoftimageAnchor()
-    sianchor = sip.wrapinstance( long(sianchor), QWidget )
-    dialog = ExampleSignalSlot( sianchor )
-    dialog.show()
-
-def ExampleMenu_Execute():
-    """a simple example showing the use of a qmenu""" 
-    sianchor = Application.getQtSoftimageAnchor()
-    sianchor = sip.wrapinstance( long(sianchor), QWidget )
-    menu = ExampleMenu( sianchor )
-
-    # notice the use of QCursor and exec_ call
-    menu.exec_(QCursor.pos())
-
-def ExampleUIFile_Execute():
-    """a simple example showing the use of a .ui file created using QtDesigner"""
-
-    # find plugin to get the path to the example ui file
-    plugin = Application.Plugins("PyQt_Example")
-    if plugin is None:
-        return False
-
-    sianchor = Application.getQtSoftimageAnchor()
-    sianchor = sip.wrapinstance( long(sianchor), QWidget )
-    uifilepath = os.path.join(plugin.OriginPath, "exampleui.ui")
-    dialog = QDialog(sianchor)
-    dialog = ExampleUIFile( dialog, uifilepath )
+import os
+import sip
+
+from PyQt4 import uic
+
+from PyQt4.QtCore import Qt
+from PyQt4.QtCore import pyqtSignal
+from PyQt4.QtCore import pyqtSlot
+
+from PyQt4.QtGui import QDialog
+from PyQt4.QtGui import QWidget
+from PyQt4.QtGui import QPushButton
+from PyQt4.QtGui import QLineEdit
+from PyQt4.QtGui import QVBoxLayout
+from PyQt4.QtGui import QMenu
+from PyQt4.QtGui import QCursor
+
+
+class ExampleDialog( QDialog ):
+    def __init__( self, parent ):
+        QDialog.__init__( self, parent )
+
+        self.setGeometry( 100, 100, 200, 100 )
+        self.setWindowTitle( "Hello World" )
+        self.setToolTip( "This is a <b>QWidget</b> widget" )
+
+        self.btn = QPushButton( "Log Text", self )
+        self.btn.setToolTip( "This is a <b>QPushButton</b> widget" )
+        self.btn.resize( self.btn.sizeHint() )
+        self.btn.clicked.connect( self.logText )
+
+        self.lineedit = QLineEdit( "Hello World", self )
+        self.lineedit.setToolTip( "Type Something" )
+
+        layout = QVBoxLayout( self )
+        layout.addWidget( self.lineedit )
+        layout.addWidget( self.btn )
+
+    def logText( self ):
+        Application.LogMessage( self.lineedit.text() )
+
+class ExampleSignalSlot( ExampleDialog ):
+    def __init__( self, parent ):
+        ExampleDialog.__init__( self,parent )
+        self.setWindowTitle( "Signal/Slot Example" )
+        self.lineedit.setText( "" )
+
+        # module containing sievents mapped to pyqtsignals
+        from sisignals import signals
+
+        # connect the siActivate signal to the activate slot and unmute the event if necessary.
+        signals.connect('siActivate', self.activate )
+
+        # connect the siPassChange signal to the passChanged slot and unmute the event if necessary.
+        signals.connect('siPassChange', self.passChanged )
+
+    def activate( self, state = None ):
+        if state is not None:
+            if state:
+                self.lineedit.setText( "Welcome Back!" )
+            else:
+                self.lineedit.setText( "Good Bye!")
+
+    def passChanged( self, targetPass = "" ):
+        self.lineedit.setText( targetPass )
+
+    def closeEvent( self, event ):
+        # Disconnect signals from slots when you close the widget.
+        # Softimage events are muted if no other widgets are using them.
+        from sisignals import signals
+        signals.disconnect('siActivate', self.activate )
+        signals.disconnect('siPassChange', self.passChanged )  
+
+class ExampleMenu( QMenu ):
+    def __init__( self, parent ):
+        QMenu.__init__( self, parent )
+
+        # add actions and a separator
+        hello = self.addAction("Print 'Hello!'")
+        self.addSeparator()    
+        world = self.addAction("Print 'World!'")
+
+        # connect to the individual action's signal
+        hello.triggered.connect( self.hello )
+        world.triggered.connect( self.world )
+
+        # connect to the menu level signal
+        self.triggered.connect( self.menuTrigger )
+
+    def hello( self ):
+        print( "Hello!" )
+
+    def world( self ):
+        print( "World!" )
+
+    def menuTrigger( self, action ):
+        if action.text() == "Print 'Hello!'":
+            print( "You clicked, Print 'Hello!'" )
+        elif action.text() == "Print 'World!'":
+            print( "You clicked, Print 'World!'" )
+
+class ExampleUIFile( QDialog ):
+    def __init__( self, parent, uifilepath ):
+        QDialog.__init__( self, parent )
+
+        # load ui file
+        self.ui = uic.loadUi( uifilepath, self )
+
+        # connect to the createCube function
+        self.ui.uiCreateCube.clicked.connect( self.createCube )
+
+    def createCube( self ):
+        cube = Application.CreatePrim("Cube", "MeshSurface", str(self.uiCubeName.text()), "")
+        cube.Length.Value = self.uiCubeLength.value()
+
+def XSILoadPlugin( in_reg ):
+    in_reg.Name = "PyQt_Example"
+    in_reg.Author = "Steven Caron"
+    in_reg.RegisterCommand( "ExampleDialog" )
+    in_reg.RegisterCommand( "ExampleSignalSlot" )
+    in_reg.RegisterCommand( "ExampleMenu" )
+    in_reg.RegisterCommand( "ExampleUIFile" )
+
+def ExampleDialog_Execute():
+    """a simple example dialog showing basic functionality of the pyqt for softimage plugin"""
+    sianchor = Application.getQtSoftimageAnchor()
+    sianchor = sip.wrapinstance( long(sianchor), QWidget )
+    dialog = ExampleDialog( sianchor )
+    dialog.show()
+
+def ExampleSignalSlot_Execute():
+    """a simple example showing softimage events triggering pyqt signals"""
+    sianchor = Application.getQtSoftimageAnchor()
+    sianchor = sip.wrapinstance( long(sianchor), QWidget )
+    dialog = ExampleSignalSlot( sianchor )
+    dialog.show()
+
+def ExampleMenu_Execute():
+    """a simple example showing the use of a qmenu""" 
+    sianchor = Application.getQtSoftimageAnchor()
+    sianchor = sip.wrapinstance( long(sianchor), QWidget )
+    menu = ExampleMenu( sianchor )
+
+    # notice the use of QCursor and exec_ call
+    menu.exec_(QCursor.pos())
+
+def ExampleUIFile_Execute():
+    """a simple example showing the use of a .ui file created using QtDesigner"""
+
+    # find plugin to get the path to the example ui file
+    plugin = Application.Plugins("PyQt_Example")
+    if plugin is None:
+        return False
+
+    sianchor = Application.getQtSoftimageAnchor()
+    sianchor = sip.wrapinstance( long(sianchor), QWidget )
+    uifilepath = os.path.join(plugin.OriginPath, "exampleui.ui")
+    dialog = QDialog(sianchor)
+    dialog = ExampleUIFile( dialog, uifilepath )
     dialog.show()