Moved source into separate src directory due to popular request

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

diff --git a/src/tim/prune/undo/UndoLoadPhotos.java b/src/tim/prune/undo/UndoLoadPhotos.java
new file mode 100644 (file)
index 0000000..b8c2b35
--- /dev/null
+++ b/src/tim/prune/undo/UndoLoadPhotos.java
@@ -0,0 +1,73 @@
+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 a load photos operation\r
+ */\r
+public class UndoLoadPhotos implements UndoOperation\r
+{\r
+       private int _numPhotos = -1;\r
+       private int _numPoints = -1;\r
+\r
+\r
+       /**\r
+        * Constructor\r
+        * @param inNumPhotos number of photos loaded\r
+        * @param inNumPoints number of points loaded\r
+        */\r
+       public UndoLoadPhotos(int inNumPhotos, int inNumPoints)\r
+       {\r
+               _numPhotos = inNumPhotos;\r
+               _numPoints = inNumPoints;\r
+       }\r
+\r
+\r
+       /**\r
+        * @return description of operation including number of photos loaded\r
+        */\r
+       public String getDescription()\r
+       {\r
+               String desc = I18nManager.getText("undo.loadphotos");\r
+               if (_numPhotos > 0)\r
+                       desc = desc + " (" + _numPhotos + ")";\r
+               return desc;\r
+       }\r
+\r
+\r
+       /**\r
+        * Perform the undo operation on the given Track\r
+        * Delete both track points and Photo objects\r
+        * @param inTrackInfo TrackInfo object on which to perform the operation\r
+        */\r
+       public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
+       {\r
+               int cropIndex;\r
+               // crop track to previous size\r
+               if (_numPoints > 0)\r
+               {\r
+                       cropIndex = inTrackInfo.getTrack().getNumPoints() - _numPoints;\r
+                       inTrackInfo.getTrack().cropTo(cropIndex);\r
+               }\r
+               else\r
+               {\r
+                       // Loop through the points (if any) and detach them\r
+                       for (int i=0; i<_numPhotos; i++)\r
+                       {\r
+                               Photo photo = inTrackInfo.getPhotoList().getPhoto(inTrackInfo.getPhotoList().getNumPhotos() - 1 - i);\r
+                               if (photo.isConnected()) {\r
+                                       DataPoint point = photo.getDataPoint();\r
+                                       if (point != null) {point.setPhoto(null);}\r
+                               }\r
+                       }\r
+               }\r
+               // crop photo list to previous size\r
+               cropIndex = inTrackInfo.getPhotoList().getNumPhotos() - _numPhotos;\r
+               inTrackInfo.getPhotoList().cropTo(cropIndex);\r
+               // clear selection\r
+               inTrackInfo.getSelection().clearAll();\r
+       }\r
+}
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