design/designer-form/src/main/java/com/fr/design/mainframe/DesignerScaleMouseWheelHandler.java

package com.fr.design.mainframe;

import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;

/**
 * @author Starryi
 * @version 1.0
 * Created by Starryi on 2021/9/23
 */
public class DesignerScaleMouseWheelHandler implements MouseWheelListener {
    private final ScalePane scalePane;
    private final int step;

    public DesignerScaleMouseWheelHandler(ScalePane scalePane, int step) {
        this.scalePane = scalePane;
        this.step = step;
    }

    @Override
    public void mouseWheelMoved(MouseWheelEvent e) {
        int dir = e.getWheelRotation();
        JFormSliderPane slidePane = this.scalePane.getSlidePane();
        int old_resolution = slidePane.getShowValue();
        slidePane.setShowValue(old_resolution - (dir * step));
    }

    public interface ScalePane {
        JFormSliderPane getSlidePane();
    }
}