Version 4, January 2008

[GpsPrune.git] / tim / prune / undo / UndoDisconnectPhoto.java

diff --git a/tim/prune/undo/UndoDisconnectPhoto.java b/tim/prune/undo/UndoDisconnectPhoto.java
new file mode 100644 (file)
index 0000000..6cd27fd
--- /dev/null
+++ b/tim/prune/undo/UndoDisconnectPhoto.java
@@ -0,0 +1,61 @@
+package tim.prune.undo;\r
+\r
+import tim.prune.I18nManager;\r
+import tim.prune.data.DataPoint;\r
+import tim.prune.data.Photo;\r
+import tim.prune.data.TrackInfo;\r
+\r
+/**\r
+ * Operation to undo the disconnection of a photo from a point\r
+ */\r
+public class UndoDisconnectPhoto implements UndoOperation\r
+{\r
+       private DataPoint _point = null;\r
+       private Photo _photo = null;\r
+       private String _filename = null;\r
+\r
+\r
+       /**\r
+        * Constructor\r
+        * @param inPoint data point\r
+        * @param inFilename filename of photo\r
+        */\r
+       public UndoDisconnectPhoto(DataPoint inPoint, String inFilename)\r
+       {\r
+               _point = inPoint;\r
+               _photo = inPoint.getPhoto();\r
+               _filename = inFilename;\r
+       }\r
+\r
+\r
+       /**\r
+        * @return description of operation including photo filename\r
+        */\r
+       public String getDescription()\r
+       {\r
+               String desc = I18nManager.getText("undo.disconnectphoto") + " " + _filename;\r
+               return desc;\r
+       }\r
+\r
+\r
+       /**\r
+        * Perform the undo operation on the given Track\r
+        * @param inTrackInfo TrackInfo object on which to perform the operation\r
+        */\r
+       public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
+       {\r
+               // Connect again\r
+               if (_point != null && _photo != null)\r
+               {\r
+                       _point.setPhoto(_photo);\r
+                       _photo.setDataPoint(_point);\r
+                       // inform subscribers\r
+                       inTrackInfo.triggerUpdate();\r
+               }\r
+               else\r
+               {\r
+                       // throw exception if failed\r
+                       throw new UndoException(getDescription());\r
+               }\r
+       }\r
+}
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