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      1 /*
      2  * Copyright (C) 2011 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.browser.view;
     18 
     19 import com.android.browser.R;
     20 
     21 import android.content.Context;
     22 import android.graphics.Canvas;
     23 import android.graphics.Paint;
     24 import android.view.View;
     25 
     26 /**
     27  * shows views in a menu style list
     28  */
     29 public class PieListView extends BasePieView {
     30 
     31     private Paint mBgPaint;
     32 
     33     public PieListView(Context ctx) {
     34         mBgPaint = new Paint();
     35         mBgPaint.setColor(ctx.getResources().getColor(R.color.qcMenuBackground));
     36     }
     37 
     38     /**
     39      * this will be called before the first draw call
     40      */
     41     @Override
     42     public void layout(int anchorX, int anchorY, boolean left, float angle) {
     43         super.layout(anchorX, anchorY, left, angle);
     44         buildViews();
     45         mWidth = mChildWidth;
     46         mHeight = mChildHeight * mAdapter.getCount();
     47         mLeft = anchorX + (left ? 0 : - mChildWidth);
     48         mTop = anchorY - mHeight / 2;
     49         if (mViews != null) {
     50             layoutChildrenLinear();
     51         }
     52     }
     53 
     54     protected void layoutChildrenLinear() {
     55         final int n = mViews.size();
     56         int top = mTop;
     57         for (View view : mViews) {
     58             view.layout(mLeft, top, mLeft + mChildWidth, top + mChildHeight);
     59             top += mChildHeight;
     60         }
     61     }
     62 
     63     @Override
     64     public void draw(Canvas canvas) {
     65         canvas.drawRect(mLeft, mTop, mLeft + mWidth, mTop + mHeight, mBgPaint);
     66         if (mViews != null) {
     67             for (View view : mViews) {
     68                 drawView(view, canvas);
     69             }
     70         }
     71     }
     72 
     73     @Override
     74     protected int findChildAt(int y) {
     75         final int ix = (y - mTop) * mViews.size() / mHeight;
     76         return ix;
     77     }
     78 
     79 }
     80