com.kitfox.svg.app.ant.SVGToImageAntTask Maven / Gradle / Ivy
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/*
* IndexLoadObjectsAntTask.java
*
* Created on January 22, 2005, 10:30 AM
*/
package com.kitfox.svg.app.ant;
import java.awt.*;
import java.awt.image.*;
import java.util.*;
import java.util.regex.*;
import java.io.*;
import javax.imageio.*;
//import com.kitfox.util.*;
//import com.kitfox.util.indexedObject.*;
import org.apache.tools.ant.*;
import org.apache.tools.ant.types.*;
import com.kitfox.svg.app.beans.*;
import com.kitfox.svg.*;
import com.kitfox.svg.xml.ColorTable;
/**
* Translates a group of SVG files into images.
*
* Parameters:
*
* - destDir - If present, specifices a directory to write SVG files to. Otherwise
* writes images to directory SVG file was found in
* verbose - If true, prints processing information to the console
*
- format - File format for output images. The java core javax.imageio.ImageIO
* class is used for creating images, so format strings will depend on what
* files your system is configured to handle. By default, "gif", "jpg" and "png"
* files are guaranteed to be present. If omitted, "png" is used by default.
*
- backgroundColor - Optional background color. Color can be specified as a standard
* HTML color. That is, as the name of a standard color such as "blue" or
* "limegreen", using the # notaion as in #ff00ff for magenta, or in rgb format
* listing the components as in rgb(255, 192, 192) for pink. If omitted,
* background is transparent.
*
- antiAlias - If set, shapes are drawn using antialiasing. Defaults to true.
*
- interpolation - String describing image interpolation alrogithm. Can
* be one of "nearest neighbor", "bilinear" or "bicubic". Defaults to "bicubic".
*
- width - If greater than 0, determines the width of the written image. Otherwise,
* the width is obtained from the SVG document. Defaults to -1;
*
- height - If greater than 0, determines the height of the written image. Otherwise,
* the height is obtained from the SVG document. Defaults to -1.
*
- sizeToFit - If true and the width and height of the output image differ
* from that of the SVG image, the valid area of the SVG image will be resized
* to fit the specified size.
*
- verbose - IF true, prints out diagnostic infromation about processing.
* Defaults to false.
*
*
* Example:
* <SVGToImage destDir="${index.java}" format="jpg" verbose="true">
* <fileset dir="${dir1}">
* <include name="*.svg"/>
* </fileset>
* <fileset dir="${dir2}">
* <include name="*.svg"/>
* </fileset>
* </SVGToImage>
*
*
*
* @author kitfox
*/
public class SVGToImageAntTask extends Task
{
private ArrayList filesets = new ArrayList();
boolean verbose = false;
File destDir;
private String format = "png";
Color backgroundColor = null;
int width = -1;
int height = -1;
boolean antiAlias = true;
String interpolation = "bicubic";
boolean clipToViewBox = false;
boolean sizeToFit = true;
/** Creates a new instance of IndexLoadObjectsAntTask */
public SVGToImageAntTask()
{
}
public String getFormat()
{
return format;
}
public void setFormat(String format)
{
this.format = format;
}
public void setBackgroundColor(String bgColor)
{
this.backgroundColor = ColorTable.parseColor(bgColor);
}
public void setHeight(int height)
{
this.height = height;
}
public void setWidth(int width)
{
this.width = width;
}
public void setAntiAlias(boolean antiAlias)
{
this.antiAlias = antiAlias;
}
public void setInterpolation(String interpolation)
{
this.interpolation = interpolation;
}
public void setSizeToFit(boolean sizeToFit)
{
this.sizeToFit = sizeToFit;
}
public void setClipToViewBox(boolean clipToViewBox)
{
this.clipToViewBox = clipToViewBox;
}
public void setVerbose(boolean verbose)
{
this.verbose = verbose;
}
public void setDestDir(File destDir)
{
this.destDir = destDir;
}
/**
* Adds a set of files.
*/
public void addFileset(FileSet set)
{
filesets.add(set);
}
public void execute()
{
if (verbose) log("Building SVG images");
for (Iterator it = filesets.iterator(); it.hasNext();)
{
FileSet fs = (FileSet)it.next();
FileScanner scanner = fs.getDirectoryScanner(getProject());
String[] files = scanner.getIncludedFiles();
try
{
File basedir = scanner.getBasedir();
if (verbose) log("Scaning " + basedir);
for (int i = 0; i < files.length; i++)
{
//System.out.println("File " + files[i]);
//System.out.println("BaseDir " + basedir);
translate(basedir, files[i]);
}
}
catch (Exception e)
{
throw new BuildException(e);
}
}
}
private void translate(File baseDir, String shortName) throws BuildException
{
File source = new File(baseDir, shortName);
if (verbose) log("Reading file: " + source);
Matcher matchName = Pattern.compile("(.*)\\.svg", Pattern.CASE_INSENSITIVE).matcher(shortName);
if (matchName.matches())
{
shortName = matchName.group(1);
}
shortName += "." + format;
SVGIcon icon = new SVGIcon();
icon.setSvgURI(source.toURI());
icon.setAntiAlias(antiAlias);
if (interpolation.equals("nearest neighbor"))
{
icon.setInterpolation(SVGIcon.INTERP_NEAREST_NEIGHBOR);
}
else if (interpolation.equals("bilinear"))
{
icon.setInterpolation(SVGIcon.INTERP_BILINEAR);
}
else if (interpolation.equals("bicubic"))
{
icon.setInterpolation(SVGIcon.INTERP_BICUBIC);
}
int iconWidth = width > 0 ? width : icon.getIconWidth();
int iconHeight = height > 0 ? height : icon.getIconHeight();
icon.setClipToViewbox(clipToViewBox);
icon.setPreferredSize(new Dimension(iconWidth, iconHeight));
icon.setScaleToFit(sizeToFit);
BufferedImage image = new BufferedImage(iconWidth, iconHeight, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = image.createGraphics();
if (backgroundColor != null)
{
g.setColor(backgroundColor);
g.fillRect(0, 0, iconWidth, iconHeight);
}
g.setClip(0, 0, iconWidth, iconHeight);
// g.fillRect(10, 10, 100, 100);
icon.paintIcon(null, g, 0, 0);
g.dispose();
File outFile = destDir == null ? new File(baseDir, shortName) : new File(destDir, shortName);
if (verbose) log("Writing file: " + outFile);
try
{
ImageIO.write(image, format, outFile);
}
catch (IOException e)
{
log("Error writing image: " + e.getMessage());
throw new BuildException(e);
}
SVGCache.getSVGUniverse().clear();
}
}