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 17 package com.android.test.hwui; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.graphics.Canvas; 22 import android.graphics.Paint; 23 import android.graphics.Path; 24 import android.os.Bundle; 25 import android.view.View; 26 import android.widget.ScrollView; 27 28 @SuppressWarnings({"UnusedDeclaration"}) 29 public class TextPathActivity extends Activity { 30 @Override onCreate(Bundle savedInstanceState)31 protected void onCreate(Bundle savedInstanceState) { 32 super.onCreate(savedInstanceState); 33 34 ScrollView scroller = new ScrollView(this); 35 scroller.addView(new CustomTextView(this)); 36 setContentView(scroller); 37 } 38 39 static class CustomTextView extends View { 40 private final Paint mHugePaint; 41 CustomTextView(Context c)42 CustomTextView(Context c) { 43 super(c); 44 45 mHugePaint = new Paint(); 46 mHugePaint.setAntiAlias(true); 47 mHugePaint.setColor(0xff000000); 48 mHugePaint.setTextSize(300f); 49 } 50 51 @Override onMeasure(int widthMeasureSpec, int heightMeasureSpec)52 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 53 setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), 3000); 54 } 55 56 @Override onDraw(Canvas canvas)57 protected void onDraw(Canvas canvas) { 58 super.onDraw(canvas); 59 canvas.drawRGB(255, 255, 255); 60 61 Path path = new Path(); 62 63 canvas.translate(100.0f, 300.0f); 64 drawTextAsPath(canvas, "Hello", path); 65 66 canvas.translate(0.0f, 400.0f); 67 drawTextAsPath(canvas, "OpenGL", path); 68 } 69 drawTextAsPath(Canvas canvas, String text, Path path)70 private void drawTextAsPath(Canvas canvas, String text, Path path) { 71 int count = text.length(); 72 mHugePaint.getTextPath(text, 0, count, 0, 0, path); 73 path.close(); 74 canvas.drawPath(path, mHugePaint); 75 } 76 } 77 } 78