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.gallery3d.glrenderer; 18 19 import android.graphics.Bitmap; 20 import android.graphics.Canvas; 21 import android.text.Layout; 22 import android.text.StaticLayout; 23 import android.text.TextPaint; 24 25 26 // MultiLineTexture is a texture shows the content of a specified String. 27 // 28 // To create a MultiLineTexture, use the newInstance() method and specify 29 // the String, the font size, and the color. 30 class MultiLineTexture extends CanvasTexture { 31 private final Layout mLayout; 32 MultiLineTexture(Layout layout)33 private MultiLineTexture(Layout layout) { 34 super(layout.getWidth(), layout.getHeight()); 35 mLayout = layout; 36 } 37 newInstance( String text, int maxWidth, float textSize, int color, Layout.Alignment alignment)38 public static MultiLineTexture newInstance( 39 String text, int maxWidth, float textSize, int color, 40 Layout.Alignment alignment) { 41 TextPaint paint = StringTexture.getDefaultPaint(textSize, color); 42 Layout layout = new StaticLayout(text, 0, text.length(), paint, 43 maxWidth, alignment, 1, 0, true, null, 0); 44 45 return new MultiLineTexture(layout); 46 } 47 48 @Override onDraw(Canvas canvas, Bitmap backing)49 protected void onDraw(Canvas canvas, Bitmap backing) { 50 mLayout.draw(canvas); 51 } 52 } 53