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.Canvas;
23import android.graphics.Paint;
24import android.graphics.Path;
25import android.os.Bundle;
26import android.view.View;
27
28@SuppressWarnings({"UnusedDeclaration"})
29public class ScaledTextActivity extends Activity {
30
31    @Override
32    protected void onCreate(Bundle savedInstanceState) {
33        super.onCreate(savedInstanceState);
34
35        final ScaledTextView view = new ScaledTextView(this);
36        setContentView(view);
37
38        ObjectAnimator animation = ObjectAnimator.ofFloat(view, "textScale", 1.0f, 10.0f);
39        animation.setDuration(3000);
40        animation.setRepeatCount(ObjectAnimator.INFINITE);
41        animation.setRepeatMode(ObjectAnimator.REVERSE);
42        animation.start();
43
44    }
45
46    public static class ScaledTextView extends View {
47        private static final String TEXT = "Hello libhwui! ";
48
49        private final Paint mPaint;
50        private final Paint mShadowPaint;
51        private final Path mPath;
52
53        private float mScale = 1.0f;
54
55        public ScaledTextView(Context c) {
56            super(c);
57            setLayerType(LAYER_TYPE_HARDWARE, null);
58
59            mPath = makePath();
60
61            mPaint = new Paint();
62            mPaint.setAntiAlias(true);
63            mPaint.setTextSize(20.0f);
64
65            mShadowPaint = new Paint();
66            mShadowPaint.setAntiAlias(true);
67            mShadowPaint.setShadowLayer(3.0f, 0.0f, 3.0f, 0xff000000);
68            mShadowPaint.setTextSize(20.0f);
69        }
70
71        public float getTextScale() {
72            return mScale;
73        }
74
75        public void setTextScale(float scale) {
76            mScale = scale;
77            invalidate();
78        }
79
80        private static Path makePath() {
81            Path path = new Path();
82            buildPath(path);
83            return path;
84        }
85
86        private static void buildPath(Path path) {
87            path.moveTo(0.0f, 0.0f);
88            path.cubicTo(0.0f, 0.0f, 100.0f, 150.0f, 100.0f, 200.0f);
89            path.cubicTo(100.0f, 200.0f, 50.0f, 300.0f, -80.0f, 200.0f);
90            path.cubicTo(-80.0f, 200.0f, 100.0f, 200.0f, 200.0f, 0.0f);
91        }
92
93        @Override
94        protected void onDraw(Canvas canvas) {
95            super.onDraw(canvas);
96
97            canvas.drawText(TEXT, 30.0f, 30.0f, mPaint);
98            mPaint.setTextAlign(Paint.Align.CENTER);
99            canvas.drawText(TEXT, 30.0f, 50.0f, mPaint);
100            mPaint.setTextAlign(Paint.Align.RIGHT);
101            canvas.drawText(TEXT, 30.0f, 70.0f, mPaint);
102
103            canvas.save();
104            canvas.translate(400.0f, 0.0f);
105            canvas.scale(3.0f, 3.0f);
106            mPaint.setTextAlign(Paint.Align.LEFT);
107            mPaint.setStrikeThruText(true);
108            canvas.drawText(TEXT, 30.0f, 30.0f, mPaint);
109            mPaint.setStrikeThruText(false);
110            mPaint.setTextAlign(Paint.Align.CENTER);
111            canvas.drawText(TEXT, 30.0f, 50.0f, mPaint);
112            mPaint.setTextAlign(Paint.Align.RIGHT);
113            canvas.drawText(TEXT, 30.0f, 70.0f, mPaint);
114            canvas.restore();
115
116            mPaint.setTextAlign(Paint.Align.LEFT);
117            canvas.translate(0.0f, 100.0f);
118
119            canvas.save();
120            canvas.scale(mScale, mScale);
121            canvas.drawText(TEXT, 30.0f, 30.0f, mPaint);
122            canvas.restore();
123
124            canvas.translate(0.0f, 250.0f);
125            canvas.save();
126            canvas.scale(3.0f, 3.0f);
127            canvas.drawText(TEXT, 30.0f, 30.0f, mShadowPaint);
128            canvas.translate(100.0f, 0.0f);
129//            canvas.drawTextOnPath(TEXT + TEXT + TEXT, mPath, 0.0f, 0.0f, mPaint);
130            canvas.restore();
131
132            float width = mPaint.measureText(TEXT);
133
134            canvas.translate(500.0f, 0.0f);
135            canvas.rotate(45.0f, width * 3.0f / 2.0f, 0.0f);
136            canvas.scale(3.0f, 3.0f);
137            canvas.drawText(TEXT, 30.0f, 30.0f, mPaint);
138        }
139    }
140}
141