tests/HwAccelerationTest/src/com/android/test/hwui/PaintDrawFilterActivity.java

/*
 * Copyright (C) 2010 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 com.android.test.hwui;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PaintFlagsDrawFilter;
import android.os.Bundle;
import android.view.View;

@SuppressWarnings({"UnusedDeclaration"})
public class PaintDrawFilterActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(new CustomTextView(this));
    }

    static class CustomTextView extends View {
        private final Paint mMediumPaint;
        private final PaintFlagsDrawFilter mDrawFilter;

        CustomTextView(Context c) {
            super(c);

            mMediumPaint = new Paint();
            mMediumPaint.setAntiAlias(true);
            mMediumPaint.setColor(0xff000000);
            mMediumPaint.setFakeBoldText(true);
            mMediumPaint.setTextSize(24.0f);

            mDrawFilter = new PaintFlagsDrawFilter(
                    Paint.FAKE_BOLD_TEXT_FLAG, Paint.UNDERLINE_TEXT_FLAG);
        }

        @Override
        protected void onDraw(Canvas canvas) {
            super.onDraw(canvas);
            canvas.drawRGB(255, 255, 255);

            canvas.setDrawFilter(null);
            canvas.drawText("Hello OpenGL renderer!", 100, 120, mMediumPaint);
            canvas.setDrawFilter(mDrawFilter);
            canvas.drawText("Hello OpenGL renderer!", 100, 220, mMediumPaint);
        }
    }
}