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      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 com.example.android.apis.graphics;
     18 
     19 import android.content.Context;
     20 import android.graphics.*;
     21 import android.graphics.drawable.Drawable;
     22 import android.graphics.drawable.ShapeDrawable;
     23 import android.graphics.drawable.shapes.*;
     24 import android.os.Bundle;
     25 import android.view.*;
     26 
     27 public class ShapeDrawable1 extends GraphicsActivity {
     28 
     29     @Override
     30     protected void onCreate(Bundle savedInstanceState) {
     31         super.onCreate(savedInstanceState);
     32         setContentView(new SampleView(this));
     33     }
     34 
     35     private static class SampleView extends View {
     36         private ShapeDrawable[] mDrawables;
     37 
     38         private static Shader makeSweep() {
     39             return new SweepGradient(150, 25,
     40                 new int[] { 0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFFFF0000 },
     41                 null);
     42         }
     43 
     44         private static Shader makeLinear() {
     45             return new LinearGradient(0, 0, 50, 50,
     46                               new int[] { 0xFFFF0000, 0xFF00FF00, 0xFF0000FF },
     47                               null, Shader.TileMode.MIRROR);
     48         }
     49 
     50         private static Shader makeTiling() {
     51             int[] pixels = new int[] { 0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0};
     52             Bitmap bm = Bitmap.createBitmap(pixels, 2, 2,
     53                                             Bitmap.Config.ARGB_8888);
     54 
     55             return new BitmapShader(bm, Shader.TileMode.REPEAT,
     56                                         Shader.TileMode.REPEAT);
     57         }
     58 
     59         private static class MyShapeDrawable extends ShapeDrawable {
     60             private Paint mStrokePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
     61 
     62             public MyShapeDrawable(Shape s) {
     63                 super(s);
     64                 mStrokePaint.setStyle(Paint.Style.STROKE);
     65             }
     66 
     67             public Paint getStrokePaint() {
     68                 return mStrokePaint;
     69             }
     70 
     71             @Override protected void onDraw(Shape s, Canvas c, Paint p) {
     72                 s.draw(c, p);
     73                 s.draw(c, mStrokePaint);
     74             }
     75         }
     76 
     77         public SampleView(Context context) {
     78             super(context);
     79             setFocusable(true);
     80 
     81             float[] outerR = new float[] { 12, 12, 12, 12, 0, 0, 0, 0 };
     82             RectF   inset = new RectF(6, 6, 6, 6);
     83             float[] innerR = new float[] { 12, 12, 0, 0, 12, 12, 0, 0 };
     84 
     85             Path path = new Path();
     86             path.moveTo(50, 0);
     87             path.lineTo(0, 50);
     88             path.lineTo(50, 100);
     89             path.lineTo(100, 50);
     90             path.close();
     91 
     92             mDrawables = new ShapeDrawable[7];
     93             mDrawables[0] = new ShapeDrawable(new RectShape());
     94             mDrawables[1] = new ShapeDrawable(new OvalShape());
     95             mDrawables[2] = new ShapeDrawable(new RoundRectShape(outerR, null,
     96                                                                  null));
     97             mDrawables[3] = new ShapeDrawable(new RoundRectShape(outerR, inset,
     98                                                                  null));
     99             mDrawables[4] = new ShapeDrawable(new RoundRectShape(outerR, inset,
    100                                                                  innerR));
    101             mDrawables[5] = new ShapeDrawable(new PathShape(path, 100, 100));
    102             mDrawables[6] = new MyShapeDrawable(new ArcShape(45, -270));
    103 
    104             mDrawables[0].getPaint().setColor(0xFFFF0000);
    105             mDrawables[1].getPaint().setColor(0xFF00FF00);
    106             mDrawables[2].getPaint().setColor(0xFF0000FF);
    107             mDrawables[3].getPaint().setShader(makeSweep());
    108             mDrawables[4].getPaint().setShader(makeLinear());
    109             mDrawables[5].getPaint().setShader(makeTiling());
    110             mDrawables[6].getPaint().setColor(0x88FF8844);
    111 
    112             PathEffect pe = new DiscretePathEffect(10, 4);
    113             PathEffect pe2 = new CornerPathEffect(4);
    114             mDrawables[3].getPaint().setPathEffect(
    115                                                 new ComposePathEffect(pe2, pe));
    116 
    117             MyShapeDrawable msd = (MyShapeDrawable)mDrawables[6];
    118             msd.getStrokePaint().setStrokeWidth(4);
    119         }
    120 
    121         @Override protected void onDraw(Canvas canvas) {
    122 
    123             int x = 10;
    124             int y = 10;
    125             int width = 300;
    126             int height = 50;
    127 
    128             for (Drawable dr : mDrawables) {
    129                 dr.setBounds(x, y, x + width, y + height);
    130                 dr.draw(canvas);
    131                 y += height + 5;
    132             }
    133         }
    134     }
    135 }
    136 
    137