?? imagefileview.java
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import java.io.File;import javax.swing.*;import javax.swing.filechooser.*;/* ImageFileView.java is a 1.4 example used by FileChooserDemo2.java. */public class ImageFileView extends FileView { ImageIcon jpgIcon = Utils.createImageIcon("images/jpgIcon.gif"); ImageIcon gifIcon = Utils.createImageIcon("images/gifIcon.gif"); ImageIcon tiffIcon = Utils.createImageIcon("images/tiffIcon.gif"); ImageIcon pngIcon = Utils.createImageIcon("images/pngIcon.png"); public String getName(File f) { return null; //let the L&F FileView figure this out } public String getDescription(File f) { return null; //let the L&F FileView figure this out } public Boolean isTraversable(File f) { return null; //let the L&F FileView figure this out } public String getTypeDescription(File f) { String extension = Utils.getExtension(f); String type = null; if (extension != null) { if (extension.equals(Utils.jpeg) || extension.equals(Utils.jpg)) { type = "JPEG Image"; } else if (extension.equals(Utils.gif)){ type = "GIF Image"; } else if (extension.equals(Utils.tiff) || extension.equals(Utils.tif)) { type = "TIFF Image"; } else if (extension.equals(Utils.png)){ type = "PNG Image"; } } return type; } public Icon getIcon(File f) { String extension = Utils.getExtension(f); Icon icon = null; if (extension != null) { if (extension.equals(Utils.jpeg) || extension.equals(Utils.jpg)) { icon = jpgIcon; } else if (extension.equals(Utils.gif)) { icon = gifIcon; } else if (extension.equals(Utils.tiff) || extension.equals(Utils.tif)) { icon = tiffIcon; } else if (extension.equals(Utils.png)) { icon = pngIcon; } } return icon; }}?? 快捷鍵說明
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