xy.reflect.ui.util.component.ScrollPaneOptions Maven / Gradle / Ivy

/*******************************************************************************
 * Copyright (C) 2018 OTK Software
 * 
 * This program is 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, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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.
 * 
 * The GNU General Public License allows you also to freely redistribute 
 * the libraries under the same license, if you provide the terms of the 
 * GNU General Public License with them and add the following 
 * copyright notice at the appropriate place (with a link to 
 * http://javacollection.net/reflectionui/ web site when possible).
 ******************************************************************************/
package xy.reflect.ui.util.component;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Rectangle;

import javax.swing.Scrollable;
import javax.swing.SwingConstants;

public class ScrollPaneOptions extends ControlPanel implements Scrollable {

	protected static final long serialVersionUID = 1L;
	protected boolean limitWidthToViewport;
	protected boolean limitHeightToViewport;

	public ScrollPaneOptions(Component content, boolean limitWidthToViewport,
			boolean limitHeightToViewport) {
		setLayout(new BorderLayout());
		add(content, BorderLayout.CENTER);
		this.limitWidthToViewport = limitWidthToViewport;
		this.limitHeightToViewport = limitHeightToViewport;
	}

	public Dimension getPreferredScrollableViewportSize() {
		return getPreferredSize();
	}

	public int getScrollableUnitIncrement(Rectangle visibleRect,
			int orientation, int direction) {
		return 10;
	}

	public int getScrollableBlockIncrement(Rectangle visibleRect,
			int orientation, int direction) {
		return ((orientation == SwingConstants.VERTICAL) ? visibleRect.height
				: visibleRect.width) - 10;
	}

	public boolean getScrollableTracksViewportWidth() {
		return limitWidthToViewport;
	}

	public boolean getScrollableTracksViewportHeight() {
		return limitHeightToViewport;
	}

}