private void kochPanelMouseDragged(MouseEvent event) {
zoomTranslateX = zoomTranslateX + event.getX() - lastDragX;
zoomTranslateY = zoomTranslateY + event.getY() - lastDragY;
lastDragX = event.getX();
lastDragY = event.getY();
kochManager.drawEdges();
}
private void kochPanelMouseClicked(MouseEvent event) {
if (Math.abs(event.getX() - startPressedX) < 1.0
&& Math.abs(event.getY() - startPressedY) < 1.0) {
double originalPointClickedX = (event.getX() - zoomTranslateX) / zoom;
double originalPointClickedY = (event.getY() - zoomTranslateY) / zoom;
if (event.getButton() == MouseButton.PRIMARY) {
zoom *= 2.0;
} else if (event.getButton() == MouseButton.SECONDARY) {
zoom /= 2.0;
}
zoomTranslateX = (int) (event.getX() - originalPointClickedX * zoom);
zoomTranslateY = (int) (event.getY() - originalPointClickedY * zoom);
kochManager.drawEdges();
}
}
private void kochPanelMousePressed(MouseEvent event) {
startPressedX = event.getX();
startPressedY = event.getY();
lastDragX = event.getX();
lastDragY = event.getY();
}