update to latest ipykernel

packages/python/yap_kernel/examples/embedding/ipkernel_qtapp.py

@@ -0,0 +1,75 @@
+#!/usr/bin/env python
+"""Example integrating an IPython kernel into a GUI App.
+
+This trivial GUI application internally starts an IPython kernel, to which Qt
+consoles can be connected either by the user at the command line or started
+from the GUI itself, via a button.  The GUI can also manipulate one variable in
+the kernel's namespace, and print the namespace to the console.
+
+Play with it by running the script and then opening one or more consoles, and
+pushing the 'Counter++' and 'Namespace' buttons.
+
+Upon exit, it should automatically close all consoles opened from the GUI.
+
+Consoles attached separately from a terminal will not be terminated, though
+they will notice that their kernel died.
+"""
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+from PyQt4 import Qt
+
+from internal_yapkernel import InternalYAPKernel
+
+#-----------------------------------------------------------------------------
+# Functions and classes
+#-----------------------------------------------------------------------------
+class SimpleWindow(Qt.QWidget, InternalYAPKernel):
+
+    def __init__(self, app):
+        Qt.QWidget.__init__(self)
+        self.app = app
+        self.add_widgets()
+        self.init_yapkernel('qt')
+
+    def add_widgets(self):
+        self.setGeometry(300, 300, 400, 70)
+        self.setWindowTitle('IPython in your app')
+
+        # Add simple buttons:
+        console = Qt.QPushButton('Qt Console', self)
+        console.setGeometry(10, 10, 100, 35)
+        self.connect(console, Qt.SIGNAL('clicked()'), self.new_qt_console)
+
+        namespace = Qt.QPushButton('Namespace', self)
+        namespace.setGeometry(120, 10, 100, 35)
+        self.connect(namespace, Qt.SIGNAL('clicked()'), self.print_namespace)
+
+        count = Qt.QPushButton('Count++', self)
+        count.setGeometry(230, 10, 80, 35)
+        self.connect(count, Qt.SIGNAL('clicked()'), self.count)
+
+        # Quit and cleanup
+        quit = Qt.QPushButton('Quit', self)
+        quit.setGeometry(320, 10, 60, 35)
+        self.connect(quit, Qt.SIGNAL('clicked()'), Qt.qApp, Qt.SLOT('quit()'))
+
+        self.app.connect(self.app, Qt.SIGNAL("lastWindowClosed()"),
+                         self.app, Qt.SLOT("quit()"))
+
+        self.app.aboutToQuit.connect(self.cleanup_consoles)
+
+#-----------------------------------------------------------------------------
+# Main script
+#-----------------------------------------------------------------------------
+
+if __name__ == "__main__":
+    app = Qt.QApplication([]) 
+    # Create our window
+    win = SimpleWindow(app)
+    win.show()
+    
+    # Very important, IPython-specific step: this gets GUI event loop
+    # integration going, and it replaces calling app.exec_()
+    win.yapkernel.start()