1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.test.hwui;
18
19import android.animation.ObjectAnimator;
20import android.app.Activity;
21import android.content.Context;
22import android.graphics.Bitmap;
23import android.graphics.BitmapFactory;
24import android.graphics.BitmapShader;
25import android.graphics.Canvas;
26import android.graphics.Paint;
27import android.graphics.drawable.ColorDrawable;
28import android.os.Bundle;
29import android.view.View;
30
31@SuppressWarnings({"UnusedDeclaration"})
32public class LinesActivity extends Activity {
33    private ObjectAnimator mAnimator;
34
35    @Override
36    protected void onCreate(Bundle savedInstanceState) {
37        super.onCreate(savedInstanceState);
38        getWindow().setBackgroundDrawable(new ColorDrawable(0xffffffff));
39        final LinesView view = new LinesView(this);
40        setContentView(view);
41
42        mAnimator = ObjectAnimator.ofFloat(view, "offset", 0.0f, 15.0f);
43        mAnimator.setDuration(1500);
44        mAnimator.setRepeatCount(ObjectAnimator.INFINITE);
45        mAnimator.setRepeatMode(ObjectAnimator.REVERSE);
46        mAnimator.start();
47    }
48
49    @Override
50    protected void onDestroy() {
51        super.onDestroy();
52        mAnimator.cancel();
53    }
54
55    public static class LinesView extends View {
56        private static final boolean LINE_AA = true;
57
58        private final Bitmap mBitmap1;
59        private final Paint mSmallPaint;
60        private final Paint mMediumPaint;
61        private final Paint mLargePaint;
62        private final BitmapShader mShader;
63        private final float[] mPoints;
64        private final Paint mAlphaPaint;
65        private final Paint mHairLinePaint;
66
67        private float mOffset;
68
69        public LinesView(Context c) {
70            super(c);
71
72            mBitmap1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1);
73
74            mSmallPaint = new Paint();
75            mSmallPaint.setAntiAlias(LINE_AA);
76            mSmallPaint.setColor(0xffff0000);
77            mSmallPaint.setStrokeWidth(1.0f);
78
79            mMediumPaint = new Paint();
80            mMediumPaint.setAntiAlias(LINE_AA);
81            mMediumPaint.setColor(0xff0000ff);
82            mMediumPaint.setStrokeWidth(4.0f);
83
84            mLargePaint = new Paint();
85            mLargePaint.setAntiAlias(LINE_AA);
86            mLargePaint.setColor(0xff00ff00);
87            mLargePaint.setStrokeWidth(15.0f);
88
89            mAlphaPaint = new Paint();
90            mAlphaPaint.setAntiAlias(LINE_AA);
91            mAlphaPaint.setColor(0x7fff0050);
92            mAlphaPaint.setStrokeWidth(10.0f);
93
94            mHairLinePaint = new Paint();
95            mHairLinePaint.setAntiAlias(LINE_AA);
96            mHairLinePaint.setColor(0xff0000ff);
97            mHairLinePaint.setStrokeWidth(0.0f);
98
99            mShader = new BitmapShader(mBitmap1, BitmapShader.TileMode.MIRROR,
100                    BitmapShader.TileMode.MIRROR);
101
102            mPoints = new float[] {
103                    62.0f, 0.0f, 302.0f, 400.0f,
104                    302.0f, 400.0f, 352.0f, 400.0f,
105                    352.0f, 400.0f, 352.0f, 500.0f
106            };
107        }
108
109        public void setOffset(float offset) {
110            mOffset = offset;
111            invalidate();
112        }
113
114        @Override
115        protected void onDraw(Canvas canvas) {
116            super.onDraw(canvas);
117
118            canvas.save();
119            canvas.translate(100.0f, 20.0f);
120
121            canvas.drawLine(0.0f, 0.0f, 40.0f, 400.0f, mSmallPaint);
122            canvas.drawLine(5.0f, 0.0f, 95.0f, 400.0f, mMediumPaint);
123            canvas.drawLine(22.0f, 0.0f, 162.0f, 400.0f, mLargePaint);
124
125            mLargePaint.setShader(mShader);
126            canvas.drawLine(42.0f, 0.0f, 222.0f, 400.0f, mLargePaint);
127            for (int x = 0; x < 20; x++) {
128                for (int y = 0; y < 20; y++) {
129                    canvas.drawPoint(500.0f + x * (15.0f + mOffset),
130                            y * (15.0f + mOffset), mLargePaint);
131                }
132            }
133            mLargePaint.setShader(null);
134
135            canvas.drawLines(mPoints, mAlphaPaint);
136
137            mSmallPaint.setAntiAlias(false);
138            canvas.drawLine(0.0f, 0.0f, 400.0f, 0.0f, mSmallPaint);
139            mSmallPaint.setAntiAlias(LINE_AA);
140            canvas.drawLine(0.0f, 0.0f, 0.0f, 400.0f, mSmallPaint);
141            canvas.drawLine(0.0f, 400.0f, 400.0f, 400.0f, mSmallPaint);
142
143            canvas.translate(120.0f, 0.0f);
144            mAlphaPaint.setShader(mShader);
145            canvas.drawLines(mPoints, mAlphaPaint);
146            mAlphaPaint.setShader(null);
147
148            canvas.restore();
149
150            canvas.save();
151            canvas.scale(10.0f, 10.0f);
152            canvas.drawLine(50.0f, 40.0f, 10.0f, 40.0f, mSmallPaint);
153            canvas.drawLine(10.0f, 45.0f, 20.0f, 55.0f, mSmallPaint);
154            canvas.drawLine(10.0f, 60.0f, 50.0f, 60.0f, mHairLinePaint);
155            canvas.restore();
156
157            canvas.save();
158            canvas.scale(10.0f, 50.0f);
159            mSmallPaint.setStrokeWidth(0.0f);
160            canvas.drawLine(20.0f, 9.0f, 30.0f, 11.0f, mSmallPaint);
161            mSmallPaint.setStrokeWidth(1.0f);
162            canvas.drawLine(30.0f, 9.0f, 40.0f, 11.0f, mSmallPaint);
163            canvas.restore();
164        }
165    }
166}
167