1/*
2 * Copyright (C) 2012 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.gallery3d.filtershow.ui;
18
19import android.content.Context;
20import android.content.res.TypedArray;
21import android.graphics.Canvas;
22import android.graphics.Paint;
23import android.graphics.Path;
24import android.graphics.Rect;
25import android.util.AttributeSet;
26import android.widget.ImageButton;
27
28import com.android.gallery3d.R;
29
30public class FramedTextButton extends ImageButton {
31    private static final String LOGTAG = "FramedTextButton";
32    private String mText = null;
33    private static int mTextSize = 24;
34    private static int mTextPadding = 20;
35    private static Paint gPaint = new Paint();
36    private static Path gPath = new Path();
37    private static int mTrianglePadding = 2;
38    private static int mTriangleSize = 30;
39
40    public static void setTextSize(int value) {
41        mTextSize = value;
42    }
43
44    public static void setTextPadding(int value) {
45        mTextPadding = value;
46    }
47
48    public static void setTrianglePadding(int value) {
49        mTrianglePadding = value;
50    }
51
52    public static void setTriangleSize(int value) {
53        mTriangleSize = value;
54    }
55
56    public void setText(String text) {
57        mText = text;
58        invalidate();
59    }
60
61    public void setTextFrom(int itemId) {
62        switch (itemId) {
63            case R.id.curve_menu_rgb: {
64                setText(getContext().getString(R.string.curves_channel_rgb));
65                break;
66            }
67            case R.id.curve_menu_red: {
68                setText(getContext().getString(R.string.curves_channel_red));
69                break;
70            }
71            case R.id.curve_menu_green: {
72                setText(getContext().getString(R.string.curves_channel_green));
73                break;
74            }
75            case R.id.curve_menu_blue: {
76                setText(getContext().getString(R.string.curves_channel_blue));
77                break;
78            }
79        }
80        invalidate();
81    }
82
83    public FramedTextButton(Context context) {
84        this(context, null);
85    }
86
87    public FramedTextButton(Context context, AttributeSet attrs) {
88        super(context, attrs);
89        if (attrs == null) {
90            return;
91        }
92        TypedArray a = getContext().obtainStyledAttributes(
93                attrs, R.styleable.ImageButtonTitle);
94
95        mText = a.getString(R.styleable.ImageButtonTitle_android_text);
96    }
97
98    public String getText(){
99        return mText;
100    }
101
102    @Override
103    public void onDraw(Canvas canvas) {
104        gPaint.setARGB(96, 255, 255, 255);
105        gPaint.setStrokeWidth(2);
106        gPaint.setStyle(Paint.Style.STROKE);
107        int w = getWidth();
108        int h = getHeight();
109        canvas.drawRect(mTextPadding, mTextPadding, w - mTextPadding,
110                h - mTextPadding, gPaint);
111        gPath.reset();
112        gPath.moveTo(w - mTextPadding - mTrianglePadding - mTriangleSize,
113                     h - mTextPadding - mTrianglePadding);
114        gPath.lineTo(w - mTextPadding - mTrianglePadding,
115                     h - mTextPadding - mTrianglePadding - mTriangleSize);
116        gPath.lineTo(w - mTextPadding - mTrianglePadding,
117                     h - mTextPadding - mTrianglePadding);
118        gPath.close();
119        gPaint.setARGB(128, 255, 255, 255);
120        gPaint.setStrokeWidth(1);
121        gPaint.setStyle(Paint.Style.FILL_AND_STROKE);
122        canvas.drawPath(gPath, gPaint);
123        if (mText != null) {
124            gPaint.reset();
125            gPaint.setARGB(255, 255, 255, 255);
126            gPaint.setTextSize(mTextSize);
127            float textWidth = gPaint.measureText(mText);
128            Rect bounds = new Rect();
129            gPaint.getTextBounds(mText, 0, mText.length(), bounds);
130            int x = (int) ((w - textWidth) / 2);
131            int y = (h + bounds.height()) / 2;
132
133            canvas.drawText(mText, x, y, gPaint);
134        }
135    }
136
137}
138