1 /* 2 * Copyright (C) 2007 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 android.graphics.drawable.shapes; 18 19 import android.graphics.Canvas; 20 import android.graphics.Paint; 21 import android.graphics.Path; 22 23 /** 24 * Creates geometric paths, utilizing the {@link android.graphics.Path} class. 25 * The path can be drawn to a Canvas with its own draw() method, 26 * but more graphical control is available if you instead pass 27 * the PathShape to a {@link android.graphics.drawable.ShapeDrawable}. 28 */ 29 public class PathShape extends Shape { 30 private Path mPath; 31 private float mStdWidth; 32 private float mStdHeight; 33 34 private float mScaleX; // cached from onResize 35 private float mScaleY; // cached from onResize 36 37 /** 38 * PathShape constructor. 39 * 40 * @param path a Path that defines the geometric paths for this shape 41 * @param stdWidth the standard width for the shape. Any changes to the 42 * width with resize() will result in a width scaled based 43 * on the new width divided by this width. 44 * @param stdHeight the standard height for the shape. Any changes to the 45 * height with resize() will result in a height scaled based 46 * on the new height divided by this height. 47 */ PathShape(Path path, float stdWidth, float stdHeight)48 public PathShape(Path path, float stdWidth, float stdHeight) { 49 mPath = path; 50 mStdWidth = stdWidth; 51 mStdHeight = stdHeight; 52 } 53 54 @Override draw(Canvas canvas, Paint paint)55 public void draw(Canvas canvas, Paint paint) { 56 canvas.save(); 57 canvas.scale(mScaleX, mScaleY); 58 canvas.drawPath(mPath, paint); 59 canvas.restore(); 60 } 61 62 @Override onResize(float width, float height)63 protected void onResize(float width, float height) { 64 mScaleX = width / mStdWidth; 65 mScaleY = height / mStdHeight; 66 } 67 68 @Override clone()69 public PathShape clone() throws CloneNotSupportedException { 70 PathShape shape = (PathShape) super.clone(); 71 shape.mPath = new Path(mPath); 72 return shape; 73 } 74 } 75 76