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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.assetstudiolib;
import com.android.resources.Density;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.net.URL;
import java.security.ProtectionDomain;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import javax.imageio.ImageIO;
/**
* The base Generator class.
*/
public class GraphicGenerator {
/**
* Options used for all generators.
*/
public static class Options {
}
public static float getScaleFactor(Density density) {
return density.getDpiValue() / (float) Density.DEFAULT_DENSITY;
}
/**
* Returns one of the built in stencil images, or null
*
* @param relativePath stencil path such as "launcher-stencil/square/web/back.png"
* @return the image, or null
* @throws IOException if an unexpected I/O error occurs
*/
public static BufferedImage getStencilImage(String relativePath) throws IOException {
InputStream is = GraphicGenerator.class.getResourceAsStream(relativePath);
return ImageIO.read(is);
}
/**
* Returns the icon (32x32) for a given clip art image.
*
* @param name the name of the image to be loaded (which can be looked up via
* {@link #getClipartNames()})
* @return the icon image
* @throws IOException if the image cannot be loaded
*/
public static BufferedImage getClipartIcon(String name) throws IOException {
InputStream is = GraphicGenerator.class.getResourceAsStream(
"/images/clipart/small/" + name);
return ImageIO.read(is);
}
/**
* Returns the full size clip art image for a given image name.
*
* @param name the name of the image to be loaded (which can be looked up via
* {@link #getClipartNames()})
* @return the clip art image
* @throws IOException if the image cannot be loaded
*/
public static BufferedImage getClipartImage(String name) throws IOException {
InputStream is = GraphicGenerator.class.getResourceAsStream(
"/images/clipart/big/" + name);
return ImageIO.read(is);
}
/**
* Returns the names of available clip art images which can be obtained by passing the
* name to {@link #getClipartIcon(String)} or
* {@link GraphicGenerator#getClipartImage(String)}
*
* @return an iterator for the available image names
*/
public static Iterator<String> getClipartNames() {
List<String> names = new ArrayList<String>(80);
try {
String pathPrefix = "images/clipart/big/"; //$NON-NLS-1$
ProtectionDomain protectionDomain = GraphicGenerator.class.getProtectionDomain();
URL url = protectionDomain.getCodeSource().getLocation();
File file;
try {
file = new File(url.toURI());
} catch (URISyntaxException e) {
file = new File(url.getPath());
}
final ZipFile zipFile = new JarFile(file);
Enumeration<? extends ZipEntry> enumeration = zipFile.entries();
while (enumeration.hasMoreElements()) {
ZipEntry zipEntry = enumeration.nextElement();
String name = zipEntry.getName();
if (!name.startsWith(pathPrefix) || !name.endsWith(".png")) { //$NON-NLS-1$
continue;
}
int lastSlash = name.lastIndexOf('/');
if (lastSlash != -1) {
name = name.substring(lastSlash + 1);
}
names.add(name);
}
} catch (final Exception e) {
e.printStackTrace();
}
return names.iterator();
}
}
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