IcoViewer.java

package test.imageviewer;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.List;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JSlider;
import javax.swing.SwingUtilities;
import javax.swing.SwingWorker;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import org.pushingpixels.flamingo.api.bcb.BreadcrumbItem;
import org.pushingpixels.flamingo.api.bcb.BreadcrumbPathEvent;
import org.pushingpixels.flamingo.api.bcb.core.BreadcrumbFileSelector;
import org.pushingpixels.flamingo.api.common.AbstractFileViewPanel;
import org.pushingpixels.flamingo.api.common.CommandButtonDisplayState;
import org.pushingpixels.flamingo.api.common.JCommandButton;
import org.pushingpixels.flamingo.api.common.StringValuePair;
import org.pushingpixels.flamingo.api.common.icon.IcoWrapperResizableIcon;
import org.pushingpixels.flamingo.api.common.icon.ResizableIcon;

public class IcoViewer extends JFrame {
	private BreadcrumbFileSelector bar;

	private AbstractFileViewPanel fileViewPanel;

	private JSlider iconSizeSlider;

	private int currIconSize;

	public IcoViewer() {
		super("ICO Viewer");

		this.bar = new BreadcrumbFileSelector();

		this.bar.getModel().addPathListener((BreadcrumbPathEvent event) -> 
			SwingUtilities.invokeLater(() -> {
				final List<BreadcrumbItem<File>> newPath = bar.getModel().getItems();
				System.out.println("New path is ");
				for (BreadcrumbItem<File> item : newPath) {
					// String[] values = item.getValue();
					System.out.println("\t" + item.getData().getAbsolutePath());
				}
	
				if (newPath.size() > 0) {
					SwingWorker<List<StringValuePair<File>>, Void> worker = 
							new SwingWorker<List<StringValuePair<File>>, Void>() {
						@Override
						protected List<StringValuePair<File>> doInBackground() {
							return bar.getCallback().getLeafs(newPath);
						}
	
						@Override
						protected void done() {
							try {
								fileViewPanel.setFolder(get());
							} catch (Exception exc) {
							}
						}
					};
					worker.execute();
				}
			}));

		this.setLayout(new BorderLayout());
		this.add(bar, BorderLayout.NORTH);

		int initialSize = 32;
		this.fileViewPanel = new AbstractFileViewPanel<File>(32, null) {
			@Override
			protected void configureCommandButton(
					org.pushingpixels.flamingo.api.common.AbstractFileViewPanel.Leaf leaf,
					JCommandButton button, ResizableIcon icon) {
			}

			@Override
			protected InputStream getLeafContent(File leaf) {
				try {
					return new FileInputStream(leaf);
				} catch (Exception exc) {
					exc.printStackTrace();
					return null;
				}
			}

			@Override
			protected ResizableIcon getResizableIcon(
					org.pushingpixels.flamingo.api.common.AbstractFileViewPanel.Leaf leaf,
					InputStream stream, CommandButtonDisplayState state, Dimension dimension) {
				int prefSize = state.getPreferredIconSize();
				if (prefSize > 0) {
					dimension = new Dimension(prefSize, prefSize);
				}
				return IcoWrapperResizableIcon.getIcon(stream, dimension);
			}

			@Override
			protected boolean toShowFile(StringValuePair<File> pair) {
				String name = pair.getKey().toLowerCase();
				return name.endsWith(".ico");

			}
		};

		JScrollPane jsp = new JScrollPane(this.fileViewPanel,
				JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
				JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
		this.add(jsp, BorderLayout.CENTER);

		this.iconSizeSlider = new JSlider();
		this.iconSizeSlider.setMinimum(16);
		this.iconSizeSlider.setMaximum(256);
		this.iconSizeSlider.setSnapToTicks(true);
		this.iconSizeSlider.setPaintLabels(true);
		this.iconSizeSlider.setPaintTicks(true);
		this.iconSizeSlider.setMajorTickSpacing(64);
		this.iconSizeSlider.setMinorTickSpacing(16);
		this.iconSizeSlider.setValue(initialSize);
		this.currIconSize = initialSize;
		this.iconSizeSlider.addChangeListener(new ChangeListener() {
			public void stateChanged(ChangeEvent e) {
				if (!iconSizeSlider.getModel().getValueIsAdjusting()) {
					int newValue = iconSizeSlider.getValue();
					if (newValue != currIconSize) {
						currIconSize = newValue;
						SwingUtilities.invokeLater(new Runnable() {
							public void run() {
								fileViewPanel.setIconDimension(currIconSize);
								invalidate();
								doLayout();
							}
						});
					}
				}
			}
		});
		this.add(this.iconSizeSlider, BorderLayout.SOUTH);
	}

	/**
	 * Main method for testing.
	 * 
	 * @param args
	 *            Ignored.
	 */
	public static void main(String... args) {
		IcoViewer test = new IcoViewer();
		test.setSize(800, 650);
		test.setLocationRelativeTo(null);
		test.setVisible(true);
		test.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
	}
}