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
17package com.android.browser.view;
18
19import com.android.browser.R;
20
21import android.content.Context;
22import android.graphics.Canvas;
23import android.graphics.Paint;
24import android.view.View;
25
26/**
27 * shows views in a menu style list
28 */
29public 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            int pHeight) {
44        super.layout(anchorX, anchorY, left, angle, pHeight);
45        buildViews();
46        mWidth = mChildWidth;
47        mHeight = mChildHeight * mAdapter.getCount();
48        mLeft = anchorX + (left ? 0 : - mChildWidth);
49        mTop = Math.max(anchorY - mHeight / 2, 0);
50        if (mTop + mHeight > pHeight) {
51            mTop = pHeight - mHeight;
52        }
53        if (mViews != null) {
54            layoutChildrenLinear();
55        }
56    }
57
58    protected void layoutChildrenLinear() {
59        final int n = mViews.size();
60        int top = mTop;
61        for (View view : mViews) {
62            view.layout(mLeft, top, mLeft + mChildWidth, top + mChildHeight);
63            top += mChildHeight;
64        }
65    }
66
67    @Override
68    public void draw(Canvas canvas) {
69        canvas.drawRect(mLeft, mTop, mLeft + mWidth, mTop + mHeight, mBgPaint);
70        if (mViews != null) {
71            for (View view : mViews) {
72                drawView(view, canvas);
73            }
74        }
75    }
76
77    @Override
78    protected int findChildAt(int y) {
79        final int ix = (y - mTop) * mViews.size() / mHeight;
80        return ix;
81    }
82
83}
84