Changeset 4183 in josm for trunk/src/org/openstreetmap/josm/gui/layer/Layer.java

Timestamp:

2011-06-29T10:06:35+02:00 (13 years ago)

Author:

stoecker

Message:

fix #6432 - projection handling for TMS and WMS

File:

• trunk/src/org/openstreetmap/josm/gui/layer/Layer.java (modified) (5 diffs)

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

@@ -16 +16 @@
 import javax.swing.Action;
 import javax.swing.Icon;
+import javax.swing.JOptionPane;
 import javax.swing.JSeparator;
 
+import org.openstreetmap.josm.Main;
 import org.openstreetmap.josm.actions.GpxExportAction;
 import org.openstreetmap.josm.actions.SaveAction;
@@ -75 +77 @@
     static public final String NAME_PROP = Layer.class.getName() + ".name";
 
-
     /** keeps track of property change listeners */
     protected PropertyChangeSupport propertyChangeSupport;
@@ -308 +309 @@
 
     /**
-     *
+     * Check changed status of layer
      *
      * @return True if layer was changed since last paint
@@ -314 +315 @@
     public boolean isChanged() {
         return true;
+    }
+
+    /**
+     * allows to check whether a projection is supported or not
+     *
+     * @return True if projection is supported for this layer
+     */
+    public boolean isProjectionSupported(Projection proj) {
+        return true;
+    }
+
+    /**
+     * Specify user information about projections
+     *
+     * @return User readable text telling about supported projections
+     */
+    public String nameSupportedProjections() {
+        return tr("All projections are supported");
     }
 
@@ -370 +389 @@
     @Override
     public void projectionChanged(Projection oldValue, Projection newValue) {
-        // default implementation does nothing - override in subclasses
+        if(!isProjectionSupported(newValue)) {
+              JOptionPane.showMessageDialog(Main.parent,
+                  tr("The layer {0} does not support the new projection {1}.\n{2}\n"
+                  + "Change the projection again or remove the layer.",
+                      getName(), newValue.toCode(), nameSupportedProjections()),
+                      tr("Warning"),
+                      JOptionPane.WARNING_MESSAGE);
+        }
     }
 }