com.github.axet.desktop.os.mac.cocoa.NSImage Maven / Gradle / Ivy

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java desktop class extender. has all user specific folders

There is a newer version: 3.0.9

package com.github.axet.desktop.os.mac.cocoa;

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import javax.imageio.ImageIO;

import com.github.axet.desktop.os.mac.foundation.Runtime;
import com.sun.jna.Pointer;

// https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSImage_Class

public class NSImage extends NSObject {

    static Pointer klass = Runtime.INSTANCE.objc_lookUpClass("NSImage");
    static Pointer initWithData = Runtime.INSTANCE.sel_getUid("initWithData:");

    static byte[] BufferedImage2Bytes(BufferedImage img) {
        try {
            ByteArrayOutputStream bufio = new ByteArrayOutputStream();
            ImageIO.write(img, "PNG", bufio);
            return bufio.toByteArray();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public NSImage(NSData data) {
        super(Runtime.INSTANCE.class_createInstance(klass, 0));

        Runtime.INSTANCE.objc_msgSend(this, initWithData, data);
    }

    public NSImage(Pointer p) {
        super(Pointer.nativeValue(p));
    }

    public NSImage(BufferedImage img) {
        this(new NSData(BufferedImage2Bytes(img)));
    }

}