Java MouseWheelEvent.getWheelRotation示例

示例#1

文件： JImage.java 项目： RussTedrake/lcm

    public void mouseWheelMoved(MouseWheelEvent e) {
      int amount = e.getWheelRotation();

      Point2D p = new Point2D.Double(e.getPoint().getX(), e.getPoint().getY());

      if (amount > 0) zoomOut(p);
      if (amount < 0) zoomIn(p);
    }

示例#2

文件： LJ3MDApp.java 项目： eskilj/mvp

 public void mouseWheelMoved(MouseWheelEvent e) {
   int notches = e.getWheelRotation();
   if ((zoomScale -= 0.05f * notches) < 0.09999f) zoomScale = 0.1f;
   repaint();
 }