Changeset 23 in josm for src/org/openstreetmap/josm/gui/layer/Layer.java

Timestamp:

2005-10-27T00:38:03+02:00 (19 years ago)

Author:

imi

Message:

• added commands to support undo later
• added Edit-Layer concept
• painting of deleted objects

File:

• src/org/openstreetmap/josm/gui/layer/Layer.java (modified) (3 diffs)

src/org/openstreetmap/josm/gui/layer/Layer.java

@@ -5 +5 @@
 import javax.swing.Icon;
 
+import org.openstreetmap.josm.data.Bounds;
+import org.openstreetmap.josm.data.projection.Projection;
 import org.openstreetmap.josm.gui.MapView;
 
@@ -32 +34 @@
          */
         public final String name;
-        
+
         /**
          * Create the layer and fill in the necessary components.
@@ -52 +54 @@
 
         /**
-         * @return <code>true</code>, if the map data can be edited.
+         * @return A small tooltip hint about some statistics for this layer.
          */
-        public boolean isEditable() {
-                return false;
-        }
+        abstract public String getToolTipText();
+
+        /**
+         * Merges the given layer into this layer. Throws if the layer types are
+         * incompatible.
+         * @param from The layer that get merged into this one. After the merge,
+         *              the other layer is not usable anymore and passing to one others
+         *              mergeFrom should be one of the last things to do with a layer.
+         */
+        abstract public void mergeFrom(Layer from);
+        
+        /**
+         * @param other The other layer that is tested to be mergable with this.
+         * @return Whether the other layer can be merged into this layer.
+         */
+        abstract public boolean isMergable(Layer other);
+        
+        /**
+         * @return The bounding rectangle this layer occupies on screen when looking
+         *              at lat/lon values or <code>null</code>, if infinite area or unknown
+         *              area is occupied.
+         */
+        abstract public Bounds getBoundsLatLon();
+        
+        /**
+         * @return The bounding rectangle this layer occupies on screen when looking
+         *              at x/y values or <code>null</code>, if infinite area or unknown
+         *              area is occupied.
+         */
+        abstract public Bounds getBoundsXY();
+
+        /**
+         * Initialize the internal dataset with the given projection.
+         */
+        abstract public void init(Projection projection);
 }