86 lines
1.7 KiB
Java
86 lines
1.7 KiB
Java
package it.sephiroth.android.library.imagezoom.graphics;
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import android.content.res.Resources;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Canvas;
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import android.graphics.ColorFilter;
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import android.graphics.Paint;
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import android.graphics.PixelFormat;
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import android.graphics.drawable.Drawable;
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import java.io.InputStream;
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/**
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* Fast bitmap drawable. Does not support states. it only support alpha and
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* colormatrix
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*
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* @author alessandro
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*/
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public class FastBitmapDrawable extends Drawable implements IBitmapDrawable {
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protected Bitmap mBitmap;
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protected Paint mPaint;
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public FastBitmapDrawable(final Bitmap b) {
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mBitmap = b;
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mPaint = new Paint();
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mPaint.setDither(true);
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mPaint.setFilterBitmap(true);
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}
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public FastBitmapDrawable(final Resources res, final InputStream is) {
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this(BitmapFactory.decodeStream(is));
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}
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@Override
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public void draw(final Canvas canvas) {
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canvas.drawBitmap(mBitmap, 0.0f, 0.0f, mPaint);
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}
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@Override
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public Bitmap getBitmap() {
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return mBitmap;
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}
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@Override
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public int getIntrinsicHeight() {
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return mBitmap.getHeight();
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}
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@Override
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public int getIntrinsicWidth() {
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return mBitmap.getWidth();
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}
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@Override
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public int getMinimumHeight() {
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return mBitmap.getHeight();
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}
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@Override
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public int getMinimumWidth() {
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return mBitmap.getWidth();
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}
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@Override
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public int getOpacity() {
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return PixelFormat.TRANSLUCENT;
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}
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@Override
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public void setAlpha(final int alpha) {
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mPaint.setAlpha(alpha);
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}
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public void setAntiAlias(final boolean value) {
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mPaint.setAntiAlias(value);
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invalidateSelf();
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}
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@Override
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public void setColorFilter(final ColorFilter cf) {
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mPaint.setColorFilter(cf);
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}
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}
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