MultiLineTexture.java revision 9201679ed1c485767f2e334aa618bd733024af03
1f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin/* 2f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * Copyright (C) 2010 The Android Open Source Project 3f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * 4f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * Licensed under the Apache License, Version 2.0 (the "License"); 5f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * you may not use this file except in compliance with the License. 6f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * You may obtain a copy of the License at 7f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * 8f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * http://www.apache.org/licenses/LICENSE-2.0 9f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * 10f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * Unless required by applicable law or agreed to in writing, software 11f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * distributed under the License is distributed on an "AS IS" BASIS, 12f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * See the License for the specific language governing permissions and 14f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * limitations under the License. 15f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin */ 16f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 17f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linpackage com.android.gallery3d.ui; 18f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 19f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linimport android.graphics.Bitmap; 20f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linimport android.graphics.Canvas; 21f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linimport android.text.Layout; 22f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linimport android.text.StaticLayout; 23f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linimport android.text.TextPaint; 24f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 25f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin// MultiLineTexture is a texture shows the content of a specified String. 26f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin// 27f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin// To create a MultiLineTexture, use the newInstance() method and specify 28f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin// the String, the font size, and the color. 29f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linclass MultiLineTexture extends CanvasTexture { 30f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private final Layout mLayout; 31f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 32f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private MultiLineTexture(Layout layout) { 33f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin super(layout.getWidth(), layout.getHeight()); 34f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mLayout = layout; 35f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 36f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 37f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public static MultiLineTexture newInstance( 389201679ed1c485767f2e334aa618bd733024af03Chih-Chung Chang String text, int maxWidth, float textSize, int color, 399201679ed1c485767f2e334aa618bd733024af03Chih-Chung Chang Layout.Alignment alignment) { 40f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin TextPaint paint = StringTexture.getDefaultPaint(textSize, color); 41f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin Layout layout = new StaticLayout(text, 0, text.length(), paint, 429201679ed1c485767f2e334aa618bd733024af03Chih-Chung Chang maxWidth, alignment, 1, 0, true, null, 0); 43f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 44f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin return new MultiLineTexture(layout); 45f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 46f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 47f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin @Override 48f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin protected void onDraw(Canvas canvas, Bitmap backing) { 49f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mLayout.draw(canvas); 50f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 51f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin} 52