jdk

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/*
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 *
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 * Copyright (c) 2007, 2021, Oracle and/or its affiliates. All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 *   - Redistributions of source code must retain the above copyright
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 *     notice, this list of conditions and the following disclaimer.
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 *
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 *   - Redistributions in binary form must reproduce the above copyright
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 *     notice, this list of conditions and the following disclaimer in the
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 *     documentation and/or other materials provided with the distribution.
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 *
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 *   - Neither the name of Oracle nor the names of its
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 *     contributors may be used to endorse or promote products derived
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 *     from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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import javax.swing.Icon;
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import javax.swing.ImageIcon;
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import javax.swing.JLabel;
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import javax.swing.JPanel;
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import javax.swing.JScrollBar;
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import javax.swing.JScrollPane;
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import java.awt.BorderLayout;
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/**
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 * Scroll Pane Demo
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 *
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 * @author Jeff Dinkins
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 */
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public class ScrollPaneDemo extends DemoModule {
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    /**
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     * main method allows us to run as a standalone demo.
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     */
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    public static void main(String[] args) {
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        ScrollPaneDemo demo = new ScrollPaneDemo(null);
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        demo.mainImpl();
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    }
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    /**
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     * ScrollPaneDemo Constructor
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     */
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    public ScrollPaneDemo(SwingSet2 swingset) {
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        super(swingset, "ScrollPaneDemo", "toolbar/JScrollPane.gif");
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        ImageIcon crayons = createImageIcon("scrollpane/crayons.jpg",  getString("ScrollPaneDemo.crayons"));
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        getDemoPanel().add(new ImageScroller(this, crayons), BorderLayout.CENTER);
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    }
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    /**
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     * ScrollPane class that demonstrates how to set the various column and row headers
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     * and corners.
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     */
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    class ImageScroller extends JScrollPane {
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        public ImageScroller(ScrollPaneDemo demo, Icon icon) {
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            super();
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            // Panel to hold the icon image
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            JPanel p = new JPanel(new BorderLayout());
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            p.add(new JLabel(icon), BorderLayout.CENTER);
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            getViewport().add(p);
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            // Create and add a column header to the scrollpane
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            JLabel colHeader = new JLabel(
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                demo.createImageIcon("scrollpane/colheader.jpg", getString("ScrollPaneDemo.colheader")));
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            setColumnHeaderView(colHeader);
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            // Create and add a row header to the scrollpane
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            JLabel rowHeader = new JLabel(
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                demo.createImageIcon("scrollpane/rowheader.jpg", getString("ScrollPaneDemo.rowheader")));
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            setRowHeaderView(rowHeader);
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            // Create and add the upper left corner
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            JLabel cornerUL = new JLabel(
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                demo.createImageIcon("scrollpane/upperleft.jpg", getString("ScrollPaneDemo.upperleft")));
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            setCorner(UPPER_LEFT_CORNER, cornerUL);
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            // Create and add the upper right corner
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            JLabel cornerUR = new JLabel(
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                demo.createImageIcon("scrollpane/upperright.jpg", getString("ScrollPaneDemo.upperright")));
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            setCorner(UPPER_RIGHT_CORNER, cornerUR);
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            // Create and add the lower left corner
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            JLabel cornerLL = new JLabel(
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                demo.createImageIcon("scrollpane/lowerleft.jpg", getString("ScrollPaneDemo.lowerleft")));
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            setCorner(LOWER_LEFT_CORNER, cornerLL);
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            JScrollBar vsb = getVerticalScrollBar();
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            JScrollBar hsb = getHorizontalScrollBar();
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            vsb.setValue(icon.getIconHeight());
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            hsb.setValue(icon.getIconWidth()/10);
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        }
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    }
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}
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