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cooja: plugins/Visualizer: Implemented mouse wheel zooming with mouse coordinates as center

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This commit is contained in:
Enrico Joerns 2014-02-07 23:16:34 +01:00
parent a1cd642e6e
commit 80b78ae6dd
1 changed files with 22 additions and 6 deletions
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28
tools/cooja/java/org/contikios/cooja/plugins/Visualizer.java
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@ -56,6 +56,8 @@ import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.awt.geom.AffineTransform;
import java.io.File;
import java.io.IOException;
@ -412,6 +414,20 @@ public class Visualizer extends VisPlugin implements HasQuickHelp {
repaint();
}
});
canvas.addMouseWheelListener(new MouseWheelListener() {
public void mouseWheelMoved(MouseWheelEvent mwe) {
int x = mwe.getX();
int y = mwe.getY();
int rot = mwe.getWheelRotation();
if (rot > 0) {
zoomToFactor(zoomFactor() / 1.2, new Point(x, y));
} else {
zoomToFactor(zoomFactor() * 1.2, new Point(x, y));
}
}
});
/* Register mote menu actions */
registerMoteMenuAction(MoveMoteMenuAction.class);
@ -855,16 +871,16 @@ public class Visualizer extends VisPlugin implements HasQuickHelp {
}
private void zoomToFactor(double newZoom) {
Position center = transformPixelToPosition(
new Point(canvas.getWidth()/2, canvas.getHeight()/2)
);
zoomToFactor(newZoom, new Point(canvas.getWidth()/2, canvas.getHeight()/2));
}
private void zoomToFactor(double newZoom, Point zoomCenter) {
Position center = transformPixelToPosition(zoomCenter);
viewportTransform.setToScale(
newZoom,
newZoom
);
Position newCenter = transformPixelToPosition(
new Point(canvas.getWidth()/2, canvas.getHeight()/2)
);
Position newCenter = transformPixelToPosition(zoomCenter);
viewportTransform.translate(
newCenter.getXCoordinate() - center.getXCoordinate(),
newCenter.getYCoordinate() - center.getYCoordinate()