Android Open Source - mclib Bitmap Tools

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License

The source code is released under:

Apache License, Version 2.0 FoundationProjectsPeopleGet InvolvedDownloadSupport ApacheHome ? Licenses Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITION...

Java Source Code

/*
   Copyright 2012 Mikhail Chabanov//ww  w .  ja va 2s  .co m

   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 mc.lib.image;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;

public class BitmapTools
{
    public static Bitmap createEmptyBitmap(int width, int height)
    {
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
        return bitmap;
    }

    public static Bitmap copyBitmap(Bitmap src)
    {
        Bitmap res = createEmptyBitmap(src.getWidth(), src.getHeight());
        copyBitmap(src, res);
        return res;
    }

    public static void copyBitmap(Bitmap in, Bitmap out)
    {
        if(in == null || out == null)
        {
            return;
        }

        Canvas canvas = new Canvas(out);
        canvas.drawBitmap(in, 0, 0, null);
    }

    public static Bitmap cropBitmap(Bitmap src, Rect rect)
    {
        if(src == null)
        {
            return null;
        }

        int width = rect.right - rect.left;
        int height = rect.bottom - rect.top;
        Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
        Canvas canvas = new Canvas(ret);
        canvas.drawBitmap(src, -rect.left, -rect.top, null);
        return ret;
    }

    public static Bitmap scaleBitmap(Bitmap src, int scale)
    {
        if(src == null)
        {
            return null;
        }

        int width = src.getWidth() * scale;
        int height = src.getHeight() * scale;
        Bitmap ret = Bitmap.createScaledBitmap(src, width, height, true);
        return ret;
    }
}

Java Source Code List

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