TextActivity.java revision b146b1214ef6e4fc75d98779b22434335764cfdb 
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.app.Activity;
20import android.content.Context;
21import android.graphics.Canvas;
22import android.graphics.Paint;
23import android.os.Bundle;
24import android.view.View;
25
26@SuppressWarnings({"UnusedDeclaration"})
27public class TextActivity extends Activity {
28    @Override
29    protected void onCreate(Bundle savedInstanceState) {
30        super.onCreate(savedInstanceState);
31
32        setContentView(new CustomTextView(this));
33    }
34
35    static class CustomTextView extends View {
36        private final Paint mMediumPaint;
37        private final Paint mLargePaint;
38        private final Paint mStrikePaint;
39        private final Paint mScaledPaint;
40
41        CustomTextView(Context c) {
42            super(c);
43
44            mMediumPaint = new Paint();
45            mMediumPaint.setAntiAlias(true);
46            mMediumPaint.setColor(0xffff0000);
47
48            mLargePaint = new Paint();
49            mLargePaint.setAntiAlias(true);
50            mLargePaint.setTextSize(36.0f);
51
52            mStrikePaint = new Paint();
53            mStrikePaint.setAntiAlias(true);
54            mStrikePaint.setTextSize(16.0f);
55            mStrikePaint.setUnderlineText(true);
56
57            mScaledPaint = new Paint();
58            mScaledPaint.setAntiAlias(true);
59            mScaledPaint.setTextSize(16.0f);
60        }
61
62        @Override
63        protected void onDraw(Canvas canvas) {
64            super.onDraw(canvas);
65            canvas.drawRGB(255, 255, 255);
66
67            canvas.drawText("Hello OpenGL renderer!", 100, 20, mMediumPaint);
68            mMediumPaint.setTextAlign(Paint.Align.CENTER);
69            canvas.drawText("Hello OpenGL renderer!", 100, 40, mMediumPaint);
70            mMediumPaint.setTextAlign(Paint.Align.RIGHT);
71            canvas.drawText("Hello OpenGL renderer!", 100, 60, mMediumPaint);
72            mMediumPaint.setTextAlign(Paint.Align.LEFT);
73            canvas.drawText("Hello OpenGL renderer!", 100, 100, mMediumPaint);
74            mMediumPaint.setShadowLayer(2.5f, 0.0f, 0.0f, 0xff000000);
75            canvas.drawText("Hello OpenGL renderer!", 100, 150, mMediumPaint);
76            mMediumPaint.clearShadowLayer();
77            canvas.drawText("Hello OpenGL renderer!", 100, 200, mLargePaint);
78
79            mLargePaint.setShadowLayer(2.5f, 3.0f, 3.0f, 0xff000000);
80            canvas.drawText("Hello OpenGL renderer!", 100, 400, mLargePaint);
81            mLargePaint.setShadowLayer(3.0f, 3.0f, 3.0f, 0xff00ff00);
82            mLargePaint.setAlpha(100);
83            canvas.drawText("Hello OpenGL renderer!", 100, 500, mLargePaint);
84            mLargePaint.setAlpha(255);
85            mLargePaint.setShadowLayer(3.0f, 3.0f, 3.0f, 0xd000ff00);
86            mLargePaint.setColor(0x00ffff00);
87            canvas.drawText("Hello OpenGL renderer!", 100, 600, mLargePaint);
88            mLargePaint.setShadowLayer(3.0f, 3.0f, 3.0f, 0x80000000);
89            mLargePaint.setColor(0x4dffffff);
90            canvas.drawText("Hello OpenGL renderer!", 100, 650, mLargePaint);
91            mLargePaint.setAlpha(255);
92            mLargePaint.setColor(0xff000000);
93            mLargePaint.clearShadowLayer();
94
95            canvas.drawText("Hello OpenGL renderer!", 500, 40, mStrikePaint);
96            mStrikePaint.setStrikeThruText(true);
97            canvas.drawText("Hello OpenGL renderer!", 500, 70, mStrikePaint);
98            mStrikePaint.setUnderlineText(false);
99            canvas.drawText("Hello OpenGL renderer!", 500, 100, mStrikePaint);
100            mStrikePaint.setStrikeThruText(false);
101            mStrikePaint.setUnderlineText(true);
102
103            mScaledPaint.setTextScaleX(0.5f);
104            canvas.drawText("Hello OpenGL renderer!", 500, 200, mScaledPaint);
105            mScaledPaint.setTextScaleX(2.0f);
106            canvas.drawText("Hello OpenGL renderer!", 500, 230, mScaledPaint);
107            mScaledPaint.setTextScaleX(1.0f);
108            canvas.drawText("Hello OpenGL renderer!", 500, 260, mScaledPaint);
109
110            canvas.save();
111            canvas.clipRect(150.0f, 220.0f, 450.0f, 320.0f);
112            canvas.drawText("Hello OpenGL renderer!", 100, 300, mLargePaint);
113            canvas.restore();
114        }
115    }
116}