Cleanup, note: rectangular selection works by holding mouse wheel and s (see line...

[jalview.git] / src / jalview / gui / ImageExporter.java

diff --git a/src/jalview/gui/ImageExporter.java b/src/jalview/gui/ImageExporter.java
index e18ca86..4ea30d9 100644 (file)
--- a/src/jalview/gui/ImageExporter.java
+++ b/src/jalview/gui/ImageExporter.java
@@ -29,6 +29,7 @@ import jalview.bin.Cache;
 import jalview.bin.Jalview;
 import jalview.io.JalviewFileChooser;
 import jalview.io.JalviewFileView;
+import jalview.io.exceptions.ImageOutputException;
 import jalview.util.ImageMaker;
 import jalview.util.ImageMaker.TYPE;
 import jalview.util.MessageManager;
@@ -103,14 +104,14 @@ public class ImageExporter
    *          what the image is of e.g. Tree, Alignment
    */
   public void doExport(File file, Component parent, int width, int height,
-          String imageSource)
+          String imageSource) throws ImageOutputException
   {
     doExport(file, parent, width, height, imageSource, null,
             BitmapImageSizing.nullBitmapImageSizing());
   }
 
   public void doExport(File file, Component parent, int width, int height,
-          String imageSource, String renderer, BitmapImageSizing userBis)
+          String imageSource, String renderer, BitmapImageSizing userBis) throws ImageOutputException
   {
     final long messageId = System.currentTimeMillis();
     setStatus(
@@ -123,6 +124,11 @@ public class ImageExporter
      */
     if (file == null && !Jalview.isHeadlessMode())
     {
+      if (Desktop.instance.isInBatchMode())
+      {
+        // defensive error report - we could wait for user input.. I  guess ?
+        throw(new ImageOutputException("Need an output file to render to when exporting images in batch mode!"));
+      }
       JalviewFileChooser chooser = imageType.getFileChooser();
       chooser.setFileView(new JalviewFileView());
       MessageManager.formatMessage("label.create_image_of",