Moved source into separate src directory due to popular request

[GpsPrune.git] / src / tim / prune / undo / UndoLoad.java

diff --git a/src/tim/prune/undo/UndoLoad.java b/src/tim/prune/undo/UndoLoad.java
new file mode 100644 (file)
index 0000000..377f21c
--- /dev/null
+++ b/src/tim/prune/undo/UndoLoad.java
@@ -0,0 +1,111 @@
+package tim.prune.undo;\r
+\r
+import tim.prune.I18nManager;\r
+import tim.prune.data.DataPoint;\r
+import tim.prune.data.FileInfo;\r
+import tim.prune.data.PhotoList;\r
+import tim.prune.data.TrackInfo;\r
+\r
+/**\r
+ * Operation to undo a load operation\r
+ */\r
+public class UndoLoad implements UndoOperation\r
+{\r
+       private int _cropIndex = -1;\r
+       private int _numLoaded = -1;\r
+       private DataPoint[] _contents = null;\r
+       private PhotoList _photoList = null;\r
+       private FileInfo _oldFileInfo = null;\r
+       // Numbers of each media before operation\r
+       private int _numPhotos = -1, _numAudios = -1;\r
+\r
+\r
+       /**\r
+        * Constructor for appending\r
+        * @param inIndex index number of crop point\r
+        * @param inNumLoaded number of points loaded\r
+        */\r
+       public UndoLoad(int inIndex, int inNumLoaded)\r
+       {\r
+               _cropIndex = inIndex;\r
+               _numLoaded = inNumLoaded;\r
+               _contents = null;\r
+       }\r
+\r
+\r
+       /**\r
+        * Constructor for replacing\r
+        * @param inOldTrackInfo track info being replaced\r
+        * @param inNumLoaded number of points loaded\r
+        * @param inPhotoList photo list, if any\r
+        */\r
+       public UndoLoad(TrackInfo inOldTrackInfo, int inNumLoaded, PhotoList inPhotoList)\r
+       {\r
+               _cropIndex = -1;\r
+               _numLoaded = inNumLoaded;\r
+               _contents = inOldTrackInfo.getTrack().cloneContents();\r
+               _oldFileInfo = inOldTrackInfo.getFileInfo().clone();\r
+               _photoList = inPhotoList;\r
+       }\r
+\r
+\r
+       /**\r
+        * @return description of operation including number of points loaded\r
+        */\r
+       public String getDescription()\r
+       {\r
+               String desc = I18nManager.getText("undo.load");\r
+               if (_numLoaded > 0)\r
+                       desc = desc + " (" + _numLoaded + ")";\r
+               return desc;\r
+       }\r
+\r
+       /**\r
+        * Set the number of photos and audios before the load operation\r
+        * @param inNumPhotos number of photos\r
+        * @param inNumAudios number of audios\r
+        */\r
+       public void setNumPhotosAudios(int inNumPhotos, int inNumAudios)\r
+       {\r
+               _numPhotos = inNumPhotos;\r
+               _numAudios = inNumAudios;\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
+               // remove source from fileinfo\r
+               if (_oldFileInfo == null) {\r
+                       inTrackInfo.getFileInfo().removeSource();\r
+               }\r
+               else {\r
+                       inTrackInfo.setFileInfo(_oldFileInfo);\r
+               }\r
+               // Crop / replace\r
+               if (_contents == null)\r
+               {\r
+                       // crop track to previous size\r
+                       inTrackInfo.getTrack().cropTo(_cropIndex);\r
+               }\r
+               else\r
+               {\r
+                       // replace photos how they were\r
+                       if (_photoList != null) {\r
+                               inTrackInfo.getPhotoList().restore(_photoList);\r
+                       }\r
+                       // Crop media lists to previous size (if specified)\r
+                       if (_numPhotos > -1) {inTrackInfo.getPhotoList().cropTo(_numPhotos);}\r
+                       if (_numAudios > -1) {inTrackInfo.getAudioList().cropTo(_numAudios);}\r
+                       // replace track contents with old\r
+                       if (!inTrackInfo.getTrack().replaceContents(_contents))\r
+                       {\r
+                               throw new UndoException(getDescription());\r
+                       }\r
+               }\r
+               // clear selection\r
+               inTrackInfo.getSelection().clearAll();\r
+       }\r
+}\r