Adding jquery, flot and openlayers to be included with the GEM.v0.0.4

1 files changed, 45 insertions, 0 deletions

diff --git a/misc/openlayers/examples/draw-undo-redo.js b/misc/openlayers/examples/draw-undo-redo.js
new file mode 100644
index 0000000..73900ab
--- /dev/null
+++ b/misc/openlayers/examples/draw-undo-redo.js
@@ -0,0 +1,45 @@
+var map = new OpenLayers.Map({
+    div: "map",
+    layers: [
+        new OpenLayers.Layer.WMS(
+            "Global Imagery",
+            "http://maps.opengeo.org/geowebcache/service/wms",
+            {layers: "bluemarble"},
+            {tileOrigin: new OpenLayers.LonLat(-180, -90)}
+        ),
+        new OpenLayers.Layer.Vector()
+    ],
+    center: new OpenLayers.LonLat(0, 0),
+    zoom: 1
+});
+
+var draw = new OpenLayers.Control.DrawFeature(
+    map.layers[1], OpenLayers.Handler.Path
+);
+map.addControl(draw);
+draw.activate();
+
+OpenLayers.Event.observe(document, "keydown", function(evt) {
+    var handled = false;
+    switch (evt.keyCode) {
+        case 90: // z
+            if (evt.metaKey || evt.ctrlKey) {
+                draw.undo();
+                handled = true;
+            }
+            break;
+        case 89: // y
+            if (evt.metaKey || evt.ctrlKey) {
+                draw.redo();
+                handled = true;
+            }
+            break;
+        case 27: // esc
+            draw.cancel();
+            handled = true;
+            break;
+    }
+    if (handled) {
+        OpenLayers.Event.stop(evt);
+    }
+});
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