TextActivity.java revision cabfcc1364eb7e4de0b15b3574fba45027b45cfc 
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        private final Paint mSkewPaint;
41
42        CustomTextView(Context c) {
43            super(c);
44
45            mMediumPaint = new Paint();
46            mMediumPaint.setAntiAlias(true);
47            mMediumPaint.setColor(0xffff0000);
48
49            mLargePaint = new Paint();
50            mLargePaint.setAntiAlias(true);
51            mLargePaint.setTextSize(36.0f);
52
53            mStrikePaint = new Paint();
54            mStrikePaint.setAntiAlias(true);
55            mStrikePaint.setTextSize(16.0f);
56            mStrikePaint.setUnderlineText(true);
57
58            mScaledPaint = new Paint();
59            mScaledPaint.setAntiAlias(true);
60            mScaledPaint.setTextSize(16.0f);
61            mScaledPaint.setShadowLayer(3.0f, 3.0f, 3.0f, 0xff00ff00);
62
63            mSkewPaint = new Paint();
64            mSkewPaint.setAntiAlias(true);
65            mSkewPaint.setTextSize(16.0f);
66            mSkewPaint.setShadowLayer(3.0f, 3.0f, 3.0f, 0xff000000);
67        }
68
69        @Override
70        protected void onDraw(Canvas canvas) {
71            super.onDraw(canvas);
72            canvas.drawRGB(255, 255, 255);
73
74            canvas.drawText("Hello OpenGL renderer!", 100, 20, mMediumPaint);
75            mMediumPaint.setTextAlign(Paint.Align.CENTER);
76            canvas.drawText("Hello OpenGL renderer!", 100, 40, mMediumPaint);
77            mMediumPaint.setTextAlign(Paint.Align.RIGHT);
78            canvas.drawText("Hello OpenGL renderer!", 100, 60, mMediumPaint);
79            mMediumPaint.setTextAlign(Paint.Align.LEFT);
80            canvas.drawText("Hello OpenGL renderer!", 100, 100, mMediumPaint);
81            mMediumPaint.setShadowLayer(2.5f, 0.0f, 0.0f, 0xff000000);
82            canvas.drawText("Hello OpenGL renderer!", 100, 150, mMediumPaint);
83            mMediumPaint.clearShadowLayer();
84            canvas.drawText("Hello OpenGL renderer!", 100, 200, mLargePaint);
85
86            mLargePaint.setShadowLayer(2.5f, 3.0f, 3.0f, 0xff000000);
87            canvas.drawText("Hello OpenGL renderer!", 100, 400, mLargePaint);
88            mLargePaint.setShadowLayer(3.0f, 3.0f, 3.0f, 0xff00ff00);
89            mLargePaint.setAlpha(100);
90            canvas.drawText("Hello OpenGL renderer!", 100, 500, mLargePaint);
91            mLargePaint.setAlpha(255);
92            mLargePaint.setShadowLayer(3.0f, 3.0f, 3.0f, 0xd000ff00);
93            mLargePaint.setColor(0x00ffff00);
94            canvas.drawText("Hello OpenGL renderer!", 100, 600, mLargePaint);
95            mLargePaint.setShadowLayer(3.0f, 3.0f, 3.0f, 0x80000000);
96            mLargePaint.setColor(0x4dffffff);
97            canvas.drawText("Hello OpenGL renderer!", 100, 650, mLargePaint);
98            mLargePaint.setAlpha(255);
99            mLargePaint.setColor(0xff000000);
100            mLargePaint.clearShadowLayer();
101
102            canvas.drawText("Hello OpenGL renderer!", 500, 40, mStrikePaint);
103            mStrikePaint.setStrikeThruText(true);
104            canvas.drawText("Hello OpenGL renderer!", 500, 70, mStrikePaint);
105            mStrikePaint.setUnderlineText(false);
106            canvas.drawText("Hello OpenGL renderer!", 500, 100, mStrikePaint);
107            mStrikePaint.setStrikeThruText(false);
108            mStrikePaint.setUnderlineText(true);
109
110            mSkewPaint.setTextSkewX(-0.25f);
111            canvas.drawText("Hello OpenGL renderer!", 980, 200, mSkewPaint);
112            mSkewPaint.setTextSkewX(0.5f);
113            canvas.drawText("Hello OpenGL renderer!", 980, 230, mSkewPaint);
114            mSkewPaint.setTextSkewX(0.0f);
115            canvas.drawText("Hello OpenGL renderer!", 980, 260, mSkewPaint);
116
117            mScaledPaint.setTextScaleX(0.5f);
118            canvas.drawText("Hello OpenGL renderer!", 500, 200, mScaledPaint);
119            mScaledPaint.setTextScaleX(1.0f);
120            canvas.drawText("Hello OpenGL renderer!", 500, 230, mScaledPaint);
121            mScaledPaint.setTextScaleX(2.0f);
122            canvas.drawText("Hello OpenGL renderer!", 500, 260, mScaledPaint);
123
124            canvas.save();
125            canvas.clipRect(150.0f, 220.0f, 450.0f, 320.0f);
126            canvas.drawText("Hello OpenGL renderer!", 100, 300, mLargePaint);
127            canvas.restore();
128        }
129    }
130}
131