if (av.hasHiddenColumns)\r
maxwidth = av.getColumnSelection().findColumnPosition(maxwidth) - 1;\r
\r
- int max = maxwidth /\r
- seqPanel.seqCanvas.getWrappedCanvasWidth(seqPanel.seqCanvas.getSize().width) +\r
- 1;\r
+ int canvasWidth = seqPanel.seqCanvas.getWrappedCanvasWidth\r
+ (seqPanel.seqCanvas.getSize().width);\r
\r
- vscroll.setMaximum(max);\r
- vscroll.setUnitIncrement(1);\r
- vscroll.setVisibleAmount(1);\r
+ if(canvasWidth>0)\r
+ {\r
+ int max = maxwidth / canvasWidth;\r
+ vscroll.setMaximum(max);\r
+ vscroll.setUnitIncrement(1);\r
+ vscroll.setVisibleAmount(1);\r
+ }\r
}\r
else\r
{\r