X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Frenderer%2FAwtRenderPanelI.java;fp=src%2Fjalview%2Frenderer%2FAwtRenderPanelI.java;h=e73a673d0727a0d2727e6286e9151f957fcdaf4a;hb=f52d7fc6ab9bf2c926f0208c225d3dc6e65c8ecf;hp=70bbc7b8d5fb25de508253aaf885bd9f34734e77;hpb=ef0e58880dc9de8c3a1eeef3c9879ed996a07602;p=jalview.git

diff --git a/src/jalview/renderer/AwtRenderPanelI.java b/src/jalview/renderer/AwtRenderPanelI.java
index 70bbc7b..e73a673 100644
--- a/src/jalview/renderer/AwtRenderPanelI.java
+++ b/src/jalview/renderer/AwtRenderPanelI.java
@@ -41,4 +41,10 @@ public interface AwtRenderPanelI extends ImageObserver
    */
   int getFadedImageWidth();
 
+  /**
+   * height of visible area on to the image - used to draw only what is visible.
+   * @return [start, end of visible region]
+   */
+  int[] getVisibleVRange();
+
 }