Merge pull request #179 from dschuermann/key-details

Key details

1 files changed, 77 insertions, 0 deletions

diff --git a/libraries/AndroidBootstrap/src/com/beardedhen/androidbootstrap/utils/ImageUtils.java b/libraries/AndroidBootstrap/src/com/beardedhen/androidbootstrap/utils/ImageUtils.java
new file mode 100644
index 000000000..3eefa9366
--- /dev/null
+++ b/libraries/AndroidBootstrap/src/com/beardedhen/androidbootstrap/utils/ImageUtils.java
@@ -0,0 +1,77 @@
+package com.beardedhen.androidbootstrap.utils;
+
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.PorterDuffXfermode;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.graphics.Bitmap.Config;
+import android.graphics.PorterDuff.Mode;
+
+public class ImageUtils
+{
+
+    public static Bitmap getCircleBitmap(Bitmap bitmap)
+    {
+        return getCircleBitmap(bitmap, bitmap.getWidth(), bitmap.getHeight());
+    }
+
+    public static Bitmap getCircleBitmap(Bitmap bitmap, int width, int height)
+    {
+        Bitmap croppedBitmap = scaleCenterCrop(bitmap, width, height);
+        Bitmap output = Bitmap.createBitmap(width, height, Config.ARGB_8888);
+        Canvas canvas = new Canvas(output);
+
+        final int color = 0xff424242;
+        final Paint paint = new Paint();
+
+        final Rect rect = new Rect(0, 0, width, height);
+        final RectF rectF = new RectF(rect);
+
+        paint.setAntiAlias(true);
+        canvas.drawARGB(0, 0, 0, 0);
+        paint.setColor(color);
+
+        int radius = 0;
+        if(width > height)
+        {
+            radius = height / 2;
+        }
+        else
+        {
+            radius = width / 2;
+        }
+
+        canvas.drawCircle(width / 2, height / 2, radius, paint);
+        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
+        canvas.drawBitmap(croppedBitmap, rect, rect, paint);
+
+        return output;
+    }
+
+    public static Bitmap scaleCenterCrop(Bitmap source, int newHeight, int newWidth)
+    {
+        int sourceWidth = source.getWidth();
+        int sourceHeight = source.getHeight();
+
+        float xScale = (float) newWidth / sourceWidth;
+        float yScale = (float) newHeight / sourceHeight;
+        float scale = Math.max(xScale, yScale);
+
+        float scaledWidth = scale * sourceWidth;
+        float scaledHeight = scale * sourceHeight;
+
+        float left = (newWidth - scaledWidth) / 2;
+        float top = (newHeight - scaledHeight) / 2;
+
+        RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);
+
+        Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, source.getConfig());
+        Canvas canvas = new Canvas(dest);
+        canvas.drawBitmap(source, null, targetRect, null);
+
+        return dest;
+    }
+}
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