1/*
2 * Copyright (C) 2014 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.testingcamera2;
18
19import java.util.Date;
20import java.text.SimpleDateFormat;
21
22import android.annotation.SuppressLint;
23import android.content.Context;
24import android.graphics.Color;
25import android.os.Handler;
26import android.os.Looper;
27import android.text.Spannable;
28import android.text.SpannableString;
29import android.text.method.ScrollingMovementMethod;
30import android.text.style.ForegroundColorSpan;
31import android.util.AttributeSet;
32import android.util.TypedValue;
33import android.view.Gravity;
34import android.view.View;
35import android.view.MotionEvent;
36import android.widget.LinearLayout;
37import android.widget.TextView;
38
39public class LogPane extends LinearLayout implements TLog.Logger {
40
41    private final TextView mLogTextView;
42    private final Handler mHandler;
43
44    @SuppressLint("SimpleDateFormat")
45    private SimpleDateFormat mDateFormatter = new SimpleDateFormat("HH:mm:ss.SSS : ");
46
47    public LogPane(Context context, AttributeSet attrs) {
48        super(context, attrs);
49
50        mHandler = new Handler(Looper.getMainLooper());
51
52        this.setOrientation(VERTICAL);
53
54        TextView titleText = new TextView(context);
55        titleText.setText(R.string.log_pane_label);
56        titleText.setTextSize(TypedValue.COMPLEX_UNIT_PX,
57                context.getResources().getDimension(R.dimen.pane_title_text));
58        LinearLayout.LayoutParams titleTextLayoutParams =
59                new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
60
61        this.addView(titleText, titleTextLayoutParams);
62
63        mLogTextView = new TextView(context);
64        mLogTextView.setFreezesText(true);
65        LinearLayout.LayoutParams logTextLayoutParams =
66                new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
67        logTextLayoutParams.leftMargin = 40;
68        mLogTextView.setLayoutParams(logTextLayoutParams);
69        mLogTextView.setLines(10);
70        mLogTextView.setMovementMethod(new ScrollingMovementMethod());
71        mLogTextView.setOnTouchListener(new View.OnTouchListener() {
72            @Override
73            public boolean onTouch(View view, MotionEvent event) {
74                // Allow scrolling of text while inside a scroll view
75                view.getParent().requestDisallowInterceptTouchEvent(true);
76                return false;
77            }
78        });
79        mLogTextView.setGravity(Gravity.BOTTOM);
80
81        this.addView(mLogTextView);
82    }
83
84    @Override
85    public void addToLog(final String text, boolean error) {
86        StringBuffer logEntry = new StringBuffer(32);
87        logEntry.append("\n").append(mDateFormatter.format(new Date()));
88        logEntry.append(text);
89        final Spannable logLine = new SpannableString(logEntry.toString());
90
91        int lineColor = error ? Color.RED : Color.WHITE;
92        logLine.setSpan(new ForegroundColorSpan(lineColor), 0, logLine.length(),
93                Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
94
95        mHandler.post(new Runnable() {
96            public void run() {
97                mLogTextView.append(logLine);
98            }
99        });
100    }
101}
102