Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Helpviewer/OpenSearch/OpenSearchEngineAction.py	Mon Dec 28 16:03:33 2009 +0000
@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2009 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a QAction subclass for open search.
+"""
+
+from PyQt4.QtCore import SIGNAL, QUrl
+from PyQt4.QtGui import QPixmap, QIcon, QAction
+
+import Helpviewer.HelpWindow
+
+class OpenSearchEngineAction(QAction):
+    """
+    Class implementing a QAction subclass for open search.
+    """
+    def __init__(self, engine, parent = None):
+        """
+        Constructor
+        
+        @param engine reference to the open search engine object (OpenSearchEngine)
+        @param parent reference to the parent object (QObject)
+        """
+        QAction.__init__(self, parent)
+        
+        self.__engine = engine
+        if self.__engine.networkAccessManager() is None:
+            self.__engine.setNetworkAccessManager(
+                Helpviewer.HelpWindow.HelpWindow.networkAccessManager())
+        
+        self.setText(engine.name())
+        self.__imageChanged()
+        
+        self.connect(engine, SIGNAL("imageChanged()"), self.__imageChanged)
+    
+    def __imageChanged(self):
+        """
+        Private slot handling a change of the associated image.
+        """
+        image = self.__engine.image()
+        if image.isNull():
+            self.setIcon(
+                Helpviewer.HelpWindow.HelpWindow.icon(QUrl(self.__engine.imageUrl())))
+        else:
+            self.setIcon(QIcon(QPixmap.fromImage(image)))