Fixes bumping of 3 frame translation when shown as one column.

Does not fix the issue where the column needs to shrink/expand on zooming

src/zmapWindow/zmapWindow.c

@@ -26,9 +26,9 @@
  *              
  * Exported functions: See ZMap/zmapWindow.h
  * HISTORY:
- * Last edited: Jan 22 11:15 2010 (edgrif)
+ * Last edited: Jan 28 01:11 2010 (roy)
  * Created: Thu Jul 24 14:36:27 2003 (edgrif)
- * CVS info:   $Id: zmapWindow.c,v 1.306 2010-01-22 17:33:53 mh17 Exp $
+ * CVS info:   $Id: zmapWindow.c,v 1.307 2010-01-27 12:38:04 rds Exp $
  *-------------------------------------------------------------------
  */
 
@@ -57,10 +57,6 @@
 ZMapFeature FEATURE_GLOBAL_G = NULL ;
 
 
-/* set a KNOWN initial size for the foo_canvas! 
- * ... the same size as foo_canvas sets ...
- */
-#define ZMAP_CANVAS_INIT_SIZE (100.0)
 
 
 /* Local struct to hold current features and new_features obtained from a server and

src/zmapWindow/zmapWindowDraw.c

@@ -28,9 +28,9 @@
  *
  * Exported functions: See zmapWindow_P.h
  * HISTORY:
- * Last edited: Jan 22 13:04 2010 (edgrif)
+ * Last edited: Jan 28 00:53 2010 (roy)
  * Created: Thu Sep  8 10:34:49 2005 (edgrif)
- * CVS info:   $Id: zmapWindowDraw.c,v 1.117 2010-01-25 13:17:45 mh17 Exp $
+ * CVS info:   $Id: zmapWindowDraw.c,v 1.118 2010-01-27 12:38:23 rds Exp $
  *-------------------------------------------------------------------
  */
 
@@ -962,7 +962,7 @@ static gboolean resetWindowWidthCB(ZMapWindowContainerGroup container, FooCanvas
       x2 = x2 + excess + window->config.strand_spacing;
 
       /* Annoyingly the initial size of the canvas is an issue here on first draw */
-      if(y2 == 100.0)
+      if(y2 == ZMAP_CANVAS_INIT_SIZE)
 	y2 = window->max_coord;
       
       zmapWindowSetScrollRegion(window, &x1, &y1, &x2, &y2) ;

src/zmapWindow/zmapWindowDrawFeatures.c

@@ -26,9 +26,9 @@
  *              
  * Exported functions: 
  * HISTORY:
- * Last edited: Jan 26 11:53 2010 (edgrif)
+ * Last edited: Jan 28 01:16 2010 (roy)
  * Created: Thu Jul 29 10:45:00 2004 (rnc)
- * CVS info:   $Id: zmapWindowDrawFeatures.c,v 1.261 2010-01-26 12:00:43 edgrif Exp $
+ * CVS info:   $Id: zmapWindowDrawFeatures.c,v 1.262 2010-01-27 12:38:31 rds Exp $
  *-------------------------------------------------------------------
  */
 
@@ -304,6 +304,7 @@ void zmapWindowDrawFeatures(ZMapWindow window,
   canvas_data.window = window;
   canvas_data.canvas = window->canvas;
 
+  /* I have no idea why, but... */
   /* Get the current scroll region */
   zmapWindowGetScrollRegion(window, &ix1, &iy1, &ix2, &iy2);
 
@@ -316,6 +317,15 @@ void zmapWindowDrawFeatures(ZMapWindow window,
     }
   else
     {
+      double sx1,sy1,sx2,sy2;
+
+      sx1 = 0.0;
+      sy1 = window->min_coord;
+      sx2 = ZMAP_CANVAS_INIT_SIZE;
+      sy2 = window->max_coord;
+      
+      zmapWindowSetScrollRegion(window, &sx1, &sy1, &sx2, &sy2);
+
       /* Add a background to the root window, must be as long as entire sequence... */
       root_group = zmapWindowContainerGroupCreateFromFoo(foo_canvas_root(window->canvas),
 							 ZMAPCONTAINER_LEVEL_ROOT,

src/zmapWindow/zmapWindow_P.h

@@ -25,9 +25,9 @@
  * Description: Defines internal interfaces/data structures of zMapWindow.
  *              
  * HISTORY:
- * Last edited: Jan 26 10:56 2010 (edgrif)
+ * Last edited: Jan 28 00:54 2010 (roy)
  * Created: Fri Aug  1 16:45:58 2003 (edgrif)
- * CVS info:   $Id: zmapWindow_P.h,v 1.253 2010-01-26 12:00:43 edgrif Exp $
+ * CVS info:   $Id: zmapWindow_P.h,v 1.254 2010-01-27 12:38:42 rds Exp $
  *-------------------------------------------------------------------
  */
 #ifndef ZMAP_WINDOW_P_H
@@ -45,6 +45,12 @@
 #include <zmapWindowContainerUtils.h>
 
 
+/* set a KNOWN initial size for the foo_canvas! 
+ * ... the same size as foo_canvas sets ...
+ */
+#define ZMAP_CANVAS_INIT_SIZE (100.0)
+
+
 /* 
  *  This section details data that we attacht to the foocanvas items that represent
  *  contexts, aligns etc. Each data structure is accessed via a key given by the