Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/E5Gui/E5Application.py	Wed Jan 13 18:53:58 2010 +0000
@@ -0,0 +1,115 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2009 - 2010 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Class implementing a specialized application class.
+"""
+
+from PyQt4.QtCore import QCoreApplication
+from PyQt4.QtGui import QApplication
+
+class E5Application(QApplication):
+    """
+    Eric application class with an object registry.
+    """
+    def __init__(self, argv):
+        """
+        Constructor
+        
+        @param argv command line arguments
+        """
+        QApplication.__init__(self, argv)
+        
+        self.__objectRegistry = {}
+        self.__pluginObjectRegistry = {}
+        
+    def registerObject(self, name, object):
+        """
+        Public method to register an object in the object registry.
+        
+        @param name name of the object (string)
+        @param object reference to the object
+        @exception KeyError raised when the given name is already in use
+        """
+        if name in self.__objectRegistry:
+            raise KeyError('Object "%s" already registered.' % name)
+        else:
+            self.__objectRegistry[name] = object
+        
+    def getObject(self, name):
+        """
+        Public method to get a reference to a registered object.
+        
+        @param name name of the object (string)
+        @return reference to the registered object
+        @exception KeyError raised when the given name is not known
+        """
+        if name in self.__objectRegistry:
+            return self.__objectRegistry[name]
+        else:
+            raise KeyError('Object "%s" is not registered.' % name)
+        
+    def registerPluginObject(self, name, object, pluginType = None):
+        """
+        Public method to register a plugin object in the object registry.
+        
+        @param name name of the plugin object (string)
+        @param object reference to the plugin object
+        @keyparam pluginType type of the plugin object (string)
+        @exception KeyError raised when the given name is already in use
+        """
+        if name in self.__pluginObjectRegistry:
+            raise KeyError('Pluginobject "%s" already registered.' % name)
+        else:
+            self.__pluginObjectRegistry[name] = (object, pluginType)
+        
+    def unregisterPluginObject(self, name):
+        """
+        Public method to unregister a plugin object in the object registry.
+        
+        @param name name of the plugin object (string)
+        """
+        if name in self.__pluginObjectRegistry:
+            del self.__pluginObjectRegistry[name]
+        
+    def getPluginObject(self, name):
+        """
+        Public method to get a reference to a registered plugin object.
+        
+        @param name name of the plugin object (string)
+        @return reference to the registered plugin object
+        @exception KeyError raised when the given name is not known
+        """
+        if name in self.__pluginObjectRegistry:
+            return self.__pluginObjectRegistry[name][0]
+        else:
+            raise KeyError('Pluginobject "%s" is not registered.' % name)
+        
+    def getPluginObjects(self):
+        """
+        Public method to get a list of (name, reference) pairs of all
+        registered plugin objects.
+        
+        @return list of (name, reference) pairs
+        """
+        objects = []
+        for name in self.__pluginObjectRegistry:
+            objects.append((name, self.__pluginObjectRegistry[name][0]))
+        return objects
+        
+    def getPluginObjectType(self, name):
+        """
+        Public method to get the type of a registered plugin object.
+        
+        @param name name of the plugin object (string)
+        @return type of the plugin object (string)
+        @exception KeyError raised when the given name is not known
+        """
+        if name in self.__pluginObjectRegistry:
+            return self.__pluginObjectRegistry[name][1]
+        else:
+            raise KeyError('Pluginobject "%s" is not registered.' % name)
+
+e5App = QCoreApplication.instance
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