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.ui; 18 19 // Texture is a rectangular image which can be drawn on GLCanvas. 20 // The isOpaque() function gives a hint about whether the texture is opaque, 21 // so the drawing can be done faster. 22 // 23 // This is the current texture hierarchy: 24 // 25 // Texture 26 // -- ColorTexture 27 // -- FadeInTexture 28 // -- BasicTexture 29 // -- UploadedTexture 30 // -- BitmapTexture 31 // -- Tile 32 // -- ResourceTexture 33 // -- NinePatchTexture 34 // -- CanvasTexture 35 // -- StringTexture 36 // 37 public interface Texture { 38 public int getWidth(); 39 public int getHeight(); 40 public void draw(GLCanvas canvas, int x, int y); 41 public void draw(GLCanvas canvas, int x, int y, int w, int h); 42 public boolean isOpaque(); 43 } 44
