CaRMtl/rene/viewer/Wheel.java
2018-09-04 22:51:42 -04:00

49 lines
1.2 KiB
Java

/*
Copyright 2006 Rene Grothmann, modified by Eric Hakenholz
This file is part of C.a.R. software.
C.a.R. is a free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.
C.a.R. is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package rene.viewer;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
class Wheel implements MouseWheelListener {
WheelListener V;
public Wheel(final WheelListener v) {
V = v;
}
public void mouseWheelMoved(final MouseWheelEvent e) {
if (e.getScrollType() == MouseWheelEvent.WHEEL_BLOCK_SCROLL) {
if (e.getWheelRotation() > 0)
V.pageUp();
else
V.pageDown();
} else {
final int n = e.getScrollAmount();
if (e.getWheelRotation() > 0)
V.up(n);
else
V.down(n);
}
}
}