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/*
* Copyright (C) 2008 The Android Open Source Project
*
* 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 android.graphics.drawable;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.drawable.Drawable;
import android.graphics.Picture;
import android.graphics.PixelFormat;
import android.graphics.Rect;
/**
* Drawable subclass that wraps a Picture, allowing the picture to be used
* wherever a Drawable is supported.
*/
public class PictureDrawable extends Drawable {
private Picture mPicture;
/**
* Construct a new drawable referencing the specified picture. The picture
* may be null.
*
* @param picture The picture to associate with the drawable. May be null.
*/
public PictureDrawable(Picture picture) {
mPicture = picture;
}
/**
* Return the picture associated with the drawable. May be null.
*
* @return the picture associated with the drawable, or null.
*/
public Picture getPicture() {
return mPicture;
}
/**
* Associate a picture with this drawable. The picture may be null.
*
* @param picture The picture to associate with the drawable. May be null.
*/
public void setPicture(Picture picture) {
mPicture = picture;
}
@Override
public void draw(Canvas canvas) {
if (mPicture != null) {
Rect bounds = getBounds();
canvas.save();
canvas.clipRect(bounds);
canvas.translate(bounds.left, bounds.top);
canvas.drawPicture(mPicture);
canvas.restore();
}
}
@Override
public int getIntrinsicWidth() {
return mPicture != null ? mPicture.getWidth() : -1;
}
@Override
public int getIntrinsicHeight() {
return mPicture != null ? mPicture.getHeight() : -1;
}
@Override
public int getOpacity() {
// not sure, so be safe
return PixelFormat.TRANSLUCENT;
}
@Override
public void setColorFilter(ColorFilter colorFilter) {}
@Override
public void setAlpha(int alpha) {}
}
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