svn-gvsig-desktop / trunk / frameworks / _fwAndami / src / com / iver / andami / iconthemes / IconThemeDir.java @ 15935
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package com.iver.andami.iconthemes; |
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import java.io.File; |
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import java.io.FilenameFilter; |
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import java.net.MalformedURLException; |
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import java.net.URL; |
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import javax.swing.ImageIcon; |
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/**
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* This class extends AbstractIconTheme and implements the abstract methods of this
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* class. This methods are <code>loadIcon</code> and <code>load</code>. This methods
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* allows load one icon or all icons in the resource.
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*/
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public class IconThemeDir extends AbstractIconTheme{ |
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/**
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* Constructor.Constructs an Icon Theme with a default one.
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* @param def. The default icon theme
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*/
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public IconThemeDir(AbstractIconTheme def) {
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setDefault(def); |
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} |
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/**
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* Allows load a icon when this is inside in a directoyr. IconName is the name or
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* key of the icon and "resource" is the URL or the icon
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*/
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@Override
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protected ImageIcon loadIcon(String iconName,Object resource) { |
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if (resource instanceof URL) { |
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// ok, we got an imagePath, let's see if it's valid
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ImageIcon icon = new ImageIcon((URL)resource); |
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if (icon.getImage()!=null) { |
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// the icon was successfully created from the imagePath
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return icon;
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} |
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else {
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log().error("Registered icon does not map to a valid image -- key: "+iconName+" -- URL: "+resource.toString()); |
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return null; |
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} |
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} else if (resource instanceof ImageIcon) { |
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return (ImageIcon)resource; |
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} |
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return null; |
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} |
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/**
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* Allows to load all icons in the directory.
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*/
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@Override
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public void load() { |
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if (getResource() instanceof File) { |
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File basedir = (File) getResource(); |
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if (basedir.isDirectory()) {
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File[] imageList = basedir.listFiles(new ImageFileFilter()); |
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String name;
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for (int i=imageList.length-1; i>=0; i--) { |
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name = computeKey(imageList[i].getName()); |
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try {
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register(name, imageList[i].toURL()); |
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} catch (MalformedURLException e) {} |
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} |
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} |
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} |
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} |
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/**
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* This class allows filter the images in the directory. Allows to load the images
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* with a apropiate extension.
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*/
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class ImageFileFilter implements FilenameFilter { |
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public boolean accept(File dir, String fileName) { |
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String extension = ""; |
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int pointPos = fileName.lastIndexOf("."); |
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if (pointPos>0 && pointPos < (fileName.length()-1) ) |
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extension = fileName.substring(pointPos+1).toLowerCase();
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if ( extension.equals("jpg") || extension.equals("jpeg") |
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|| extension.equals("png")
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|| extension.equals("gif")
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) |
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return true; |
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else
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return false; |
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} |
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} |
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/**
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* Returns the key of the image without extension
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* @param fileName
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* @return string
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*/
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private String computeKey(String fileName) { |
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int pointPos = fileName.lastIndexOf("."); |
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if (pointPos!=-1) |
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return fileName.substring(0, pointPos); |
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else
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return fileName;
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} |
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} |
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