/*
* Copyright 2013 Evelio Tarazona C�ceres <evelio@evelio.info>
*
* 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 info.evelio.drawable;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.Drawable;
import android.util.Log;
/**
* A Drawable that draws an oval with given {@link Bitmap}
*/
public class RoundedAvatarDrawable extends Drawable
{
private final Bitmap mBitmap;
private final Paint mPaint;
private final RectF mRectF;
private final int mBitmapWidth;
private final int mBitmapHeight;
public RoundedAvatarDrawable(Bitmap bitmap)
{
mBitmap = bitmap;
mRectF = new RectF();
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
final BitmapShader shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.MIRROR);
mPaint.setShader(shader);
// NOTE: we assume bitmap is properly scaled to current density
mBitmapWidth = mBitmap.getWidth();
mBitmapHeight = mBitmap.getHeight();
}
@Override
public void draw(Canvas canvas)
{
canvas.drawOval(mRectF, mPaint);
}
@Override
protected void onBoundsChange(Rect bounds)
{
super.onBoundsChange(bounds);
mRectF.set(bounds);
}
@Override
public void setAlpha(int alpha)
{
if (mPaint.getAlpha() != alpha)
{
mPaint.setAlpha(alpha);
invalidateSelf();
}
}
@Override
public void setColorFilter(ColorFilter cf)
{
mPaint.setColorFilter(cf);
}
@Override
public int getOpacity()
{
return PixelFormat.TRANSLUCENT;
}
@Override
public int getIntrinsicWidth()
{
return mBitmapWidth;
}
@Override
public int getIntrinsicHeight()
{
return mBitmapWidth;
}
public void setAntiAlias(boolean aa)
{
mPaint.setAntiAlias(aa);
invalidateSelf();
}
@Override
public void setFilterBitmap(boolean filter)
{
mPaint.setFilterBitmap(filter);
invalidateSelf();
}
@Override
public void setDither(boolean dither)
{
mPaint.setDither(dither);
invalidateSelf();
}
public Bitmap getBitmap()
{
return mBitmap;
}
// TODO allow set and use target density, mutate, constant state, changing configurations, etc.
}