Changeset 4934 in josm for trunk

Timestamp:

2012-02-15T02:44:53+01:00 (12 years ago)

Author:

xeen

Message:

likely fix #7315’s cursor issues and related target-highlight ones

File:

• trunk/src/org/openstreetmap/josm/actions/mapmode/SelectAction.java (modified) (7 diffs)

trunk/src/org/openstreetmap/josm/actions/mapmode/SelectAction.java

@@ -213 +213 @@
 
             if(dragInProgress()) {
-                c = ctrl ? "merge" : "move";
-                if(osm != null && osm instanceof Node && ctrl) {
-                    c += "_to_node";
-                }
+                // only consider merge if ctrl is pressed and there are nodes in
+                // the selection that could be merged
+                if(!ctrl || getCurrentDataSet().getSelectedNodes().isEmpty()) {
+                    c = "move";
+                    break;
+                }
+                // only show merge to node cursor if nearby node and that node is currently
+                // not being dragged
+                final boolean hasTarget = osm != null && osm instanceof Node && !osm.isSelected();
+                c = hasTarget ? "merge_to_node" : "merge";
                 break;
             }
@@ -310 +316 @@
             return needsRepaint;
 
+        // CTRL toggles selection, but if while dragging CTRL means merge
+        final boolean isToggleMode = ctrl && !dragInProgress();
         for(OsmPrimitive x : c) {
             // only highlight primitives that will change the selection
             // when clicked. I.e. don't highlight selected elements unless
             // we are in toggle mode.
-            if(ctrl || !x.isSelected()) {
+            if(isToggleMode || !x.isSelected()) {
                 x.setHighlighted(true);
                 oldHighlights.add(x);
@@ -344 +352 @@
         if (!mv.isActiveLayerVisible())
             return;
-        
+
         // Swing sends random mouseDragged events when closing dialogs by double-clicking their top-left icon on Windows
         // Ignore such false events to prevent issues like #7078
-        if (mouseDownButton == MouseEvent.BUTTON1 && mouseReleaseTime > mouseDownTime) {
-            return;
-        }
+        if (mouseDownButton == MouseEvent.BUTTON1 && mouseReleaseTime > mouseDownTime)
+            return;
 
         cancelDrawMode = true;
@@ -368 +375 @@
             // If ctrl is pressed we are in merge mode. Look for a nearby node,
             // highlight it and adjust the cursor accordingly.
-            final OsmPrimitive p = ctrl ? (OsmPrimitive)findNodeToMergeTo(e) : null;
+            final boolean canMerge = ctrl && !getCurrentDataSet().getSelectedNodes().isEmpty();
+            final OsmPrimitive p = canMerge ? (OsmPrimitive)findNodeToMergeTo(e) : null;
             boolean needsRepaint = removeHighlighting();
             if(p != null) {
@@ -376 +384 @@
             }
             mv.setNewCursor(getCursor(MapView.asColl(p)), this);
+            // also update the stored mouse event, so we can display the correct cursor
+            // when dragging a node onto another one and then press CTRL to merge
+            oldEvent = e;
             if(needsRepaint) {
                 mv.repaint();
@@ -636 +647 @@
      * selectables nearby. Everything has to be pre-determined for this
      * function; its main purpose is to centralize what the modifiers do.
-     * @param nearSelectables
+     * @param hasSelectionNearby
      */
     private void determineMapMode(boolean hasSelectionNearby) {
@@ -935 +946 @@
         if (mode == Mode.select)
             return tr("Release the mouse button to select the objects in the rectangle.");
-        else if (mode == Mode.move)
-            return tr("Release the mouse button to stop moving. Ctrl to merge with nearest node.");
-        else if (mode == Mode.rotate)
+        else if (mode == Mode.move) {
+            final boolean canMerge = !getCurrentDataSet().getSelectedNodes().isEmpty();
+            final String mergeHelp = canMerge ? (" " + tr("Ctrl to merge with nearest node.")) : "";
+            return tr("Release the mouse button to stop moving.") + mergeHelp;
+        } else if (mode == Mode.rotate)
             return tr("Release the mouse button to stop rotating.");
         else if (mode == Mode.scale)