antville/helma
antville/helma
1
1
Fork 0
Code Issues 5 Pull requests 7 Projects Releases 5 Activity Actions

Improve JS Image constructor:

Browse source 
* Implement Image constructor from helma.util.MimePart
* Improve error reporting: Include original exception message for IOExceptions,
   include argument info to detect wrong arguments
This commit is contained in:
hns 2005-03-09 16:43:33 +00:00
parent 9bcdfd7cd0
commit 343fad7638
1 changed files with 22 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
src/helma/scripting/rhino/extensions/ImageObject.java
View file

@ -17,6 +17,8 @@
package helma.scripting.rhino.extensions;
import helma.image.*;
import helma.util.MimePart;
import java.awt.image.*;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.Function;
@ -34,7 +36,6 @@ import java.io.InputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.net.MalformedURLException;
@ -63,8 +64,11 @@ public class ImageObject {
public static Object imageCtor (Context cx, Object[] args,
Function ctorObj, boolean inNewExpr) {
Object img = null;
try {
ImageGenerator generator = ImageGenerator.getInstance();
if (args.length == 1) {
@ -85,6 +89,11 @@ public class ImageObject {
// try the local file now:
img = generator.createImage(str);
}
} else if (args[0] instanceof NativeJavaObject) {
Object arg = ((NativeJavaObject) args[0]).unwrap();
if (arg instanceof MimePart) {
img = generator.createImage(((MimePart) arg).getContent());
}
}
} else if (args.length == 2) {
if (args[0] instanceof Number &&
@ -102,16 +111,23 @@ public class ImageObject {
else if (filter instanceof BufferedImageOp)
img = generator.createImage((ImageWrapper) wrapper, (BufferedImageOp) filter);
}
} else {
throw new RuntimeException("Error creating Image from args "+args[0]+","+args[1]);
}
}
} catch (Exception error) {
System.err.println("Error creating Image: " + error);
} catch (IOException iox) {
throw new RuntimeException("Error creating Image: " + iox);
}
if (img == null) {
throw new RuntimeException("Error creating image: Bad parameters or setup problem.");
switch (args.length) {
case 0:
throw new RuntimeException("Error creating Image: Called without arguments");
case 1:
throw new RuntimeException("Error creating Image from " + args[0]);
case 2:
throw new RuntimeException("Error creating Image from " + args[0] + ", " + args[1]);
default:
throw new RuntimeException("Error creating Image: Wrong number of arguments");
}
}
return Context.toObject(img, ctorObj.getParentScope());