#2301 use parent folder when creating a new (non existent file)

Author: shroffk

core/ui/src/main/java/org/phoebus/ui/dialog/SaveAsDialog.java

@@ -30,7 +30,7 @@ public class SaveAsDialog
      *  @param title Title
      *  @param file Suggested file, may be <code>null</code>
      *  @param filters Filters, may be <code>null</code>
-     *  @return 
+     *  @return
      */
     public File promptForFile(final Window window, final String title, final File file, final ExtensionFilter[] filters)
     {
@@ -62,35 +62,38 @@ private File doPromptForFile(final Window window, final String title, File file,
         File initial_directory;
         final FileChooser dialog = new FileChooser();
         dialog.setTitle(title);
-        
+
         if (!Preferences.default_save_path.isEmpty()){
             initial_directory = new File(Preferences.default_save_path);
             dialog.setInitialDirectory(initial_directory);
         }
-        
+
         if (file != null)
         {
             // Dialog will fail if the directory does not exist
-        	if(file.exists()) 
-        	{
-        		
-        		if(file.isDirectory()) 
-        		{
-        			dialog.setInitialDirectory(file);
-        		}
-        		else if (null != file.getParentFile() && file.getParentFile().exists()) 
-        		{
+            if (file.exists())
+            {
+                if (file.isDirectory())
+                {
+                    dialog.setInitialDirectory(file);
+                }
+                else if (null != file.getParentFile() && file.getParentFile().exists())
+                {
                     dialog.setInitialDirectory(file.getParentFile());
                     dialog.setInitialFileName(file.getName());
-        			
-        		}
-        	}
-            
+                }
+            }
+            // Even if the file does not exist, you could still use the existing parent folder
+            else if (null != file.getParentFile() && file.getParentFile().exists())
+            {
+                dialog.setInitialDirectory(file.getParentFile());
+            }
+
         }
-        
+
         if (filters != null)
             dialog.getExtensionFilters().addAll(filters);
-        
+
         return doExecuteDialog(window, dialog);
     }