[mapguide-commits] r5690 - trunk/Tools/Maestro/Maestro.Base/Editor

[svn_mapguide at osgeo.org]

Author: jng
Date: 2011-04-07 07:47:30 -0700 (Thu, 07 Apr 2011)
New Revision: 5690

Modified:
   trunk/Tools/Maestro/Maestro.Base/Editor/ResourcePreviewEngine.cs
Log:
#1651: The math to compress the spatial extent to accomodate the visible scale escapes me at the moment. So in the meantime, I've added a custom "zoom to scale" InvokeScript command to the generated web layout to assist in this workflow.


Modified: trunk/Tools/Maestro/Maestro.Base/Editor/ResourcePreviewEngine.cs
===================================================================
--- trunk/Tools/Maestro/Maestro.Base/Editor/ResourcePreviewEngine.cs	2011-04-07 14:27:51 UTC (rev 5689)
+++ trunk/Tools/Maestro/Maestro.Base/Editor/ResourcePreviewEngine.cs	2011-04-07 14:47:30 UTC (rev 5690)
@@ -69,8 +69,11 @@
 
             //Create temp map definition to house our current layer
             var mdfId = "Session:" + sessionId + "//" + Guid.NewGuid() + ".MapDefinition";
-            var mdf = ObjectFactory.CreateMapDefinition(conn, Properties.Resources.PreviewMap, ldf.GetCoordinateSystemWkt(), ldf.GetSpatialExtent(true));
+            var extent = ldf.GetSpatialExtent(true);
 
+            //TODO: Based on the visible scales in this layer, size this extents accordingly
+            var mdf = ObjectFactory.CreateMapDefinition(conn, Properties.Resources.PreviewMap, ldf.GetCoordinateSystemWkt(), extent);
+
             mdf.AddLayer(null, ResourceIdentifier.GetName(ldf.ResourceID), ldf.ResourceID);
 
             conn.ResourceService.SaveResourceAs(mdf, mdfId);
@@ -79,6 +82,10 @@
             {
                 //Create temp web layout to house this map
                 var wl = ObjectFactory.CreateWebLayout(_edSvc.GetEditedResource().CurrentConnection, new Version(1, 0, 0), mdfId);
+
+                //Add a custom zoom command (to assist previews of layers that aren't [0, infinity] scale)
+                AttachZoomToScaleCommand(wl);
+
                 var resId = "Session:" + sessionId + "//" + Guid.NewGuid() + ".WebLayout";
 
                 conn.ResourceService.SaveResourceAs(wl, resId);
@@ -99,6 +106,28 @@
             return url;
         }
 
+        private static void AttachZoomToScaleCommand(IWebLayout wl)
+        {
+            var cmd = wl.CreateInvokeScriptCommand();
+            cmd.Name = "ZoomScale";
+            cmd.Label = "Zoom to Scale"; //LOCALIZEME
+            cmd.Tooltip = "Zoom to a specified scale";
+            cmd.Script = @"
+                var map = parent.parent.GetMapFrame();
+                var center = map.GetCenter();
+                var scale = parseFloat(prompt('Enter the scale:'));
+                map.ZoomToView(center.X, center.Y, scale, true);
+                ";
+
+            cmd.TargetViewer = TargetViewerType.Ajax;
+            cmd.ImageURL = "../stdicons/icon_zoom.gif";
+
+            wl.CommandSet.AddCommand(cmd);
+
+            var item = wl.CreateCommandItem(cmd.Name);
+            wl.ToolBar.AddItem(item);
+        }
+
         private string GenerateMapPreviewUrl(IResource res)
         {
             string url = _rootUrl;
@@ -116,6 +145,10 @@
             {
                 //Create temp web layout to house this map
                 var wl = ObjectFactory.CreateWebLayout(_edSvc.GetEditedResource().CurrentConnection, new Version(1, 0, 0), mdfId);
+
+                //Add a custom zoom command (to assist previews of layers that aren't [0, infinity] scale)
+                AttachZoomToScaleCommand(wl);
+
                 var resId = "Session:" + sessionId + "//" + Guid.NewGuid() + ".WebLayout";
 
                 conn.ResourceService.SaveResourceAs(wl, resId);