public RotatableCanvas(AlignViewport av)\r
{\r
this.av = av;\r
+\r
+ addMouseWheelListener(new MouseWheelListener()\r
+ {\r
+ public void mouseWheelMoved(MouseWheelEvent e)\r
+ {\r
+ if (e.getWheelRotation() > 0)\r
+ {\r
+ scale = (float) (scale * 1.1);\r
+ repaint();\r
+ }\r
+\r
+ else\r
+ {\r
+ scale = (float) (scale * 0.9);\r
+ repaint();\r
+ }\r
+ }\r
+ });\r
+\r
}\r
\r
public void showLabels(boolean b)\r