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src/main/java/com/zoffcc/applications/trifa/AudioBar.java
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| /** | ||
| * [TRIfA], Java part of Tox Reference Implementation for Android | ||
| * Copyright (C) 2020 Zoff <[email protected]> | ||
| * <p> | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU General Public License | ||
| * version 2 as published by the Free Software Foundation. | ||
| * <p> | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * <p> | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the | ||
| * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | ||
| * Boston, MA 02110-1301, USA. | ||
| */ | ||
|
|
||
| package com.zoffcc.applications.trifa; | ||
|
|
||
| import java.awt.*; | ||
| import java.awt.Color; | ||
| import java.util.ArrayList; | ||
|
|
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| import javax.swing.JPanel; | ||
|
|
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| public class AudioBar extends JPanel | ||
| { | ||
| private static final String TAG = "trifa.AudioBar"; | ||
|
|
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| public static AudioBar audio_in_bar = new AudioBar(); | ||
| public static AudioBar audio_out_bar = new AudioBar(); | ||
|
|
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| private int cur_value = 0; | ||
| private final int yellow_value = 75; | ||
| private final int red_value = 85; | ||
|
|
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| AudioBar() | ||
| { | ||
| super(); | ||
| setDoubleBuffered(true); | ||
| setPreferredSize(new Dimension(300, 4)); | ||
| setSize(300, 4); | ||
| revalidate(); | ||
| repaint(); | ||
| set_cur_value(0, this); | ||
| } | ||
|
|
||
| @Override | ||
| public void paint(Graphics g) | ||
| { | ||
| super.paint(g); | ||
| setBackground(Color.black); | ||
| int w = this.getWidth(); | ||
| int h = this.getHeight(); | ||
| if (cur_value > red_value) | ||
| { | ||
| g.setColor(Color.RED); | ||
| g.fillRect(0, 0, (w / 100) * cur_value, h); | ||
| g.setColor(Color.YELLOW); | ||
| g.fillRect(0, 0, (w / 100) * red_value, h); | ||
| g.setColor(Color.GREEN); | ||
| g.fillRect(0, 0, (w / 100) * yellow_value, h); | ||
| } | ||
| else if (cur_value > yellow_value) | ||
| { | ||
| g.setColor(Color.YELLOW); | ||
| g.fillRect(0, 0, (w / 100) * cur_value, h); | ||
| g.setColor(Color.GREEN); | ||
| g.fillRect(0, 0, (w / 100) * yellow_value, h); | ||
| } | ||
| else if (cur_value == 0) | ||
| { | ||
| // nothing to do, already full black bg | ||
| } | ||
| else | ||
| { | ||
| g.setColor(Color.GREEN); | ||
| g.fillRect(0, 0, (w / 100) * cur_value, h); | ||
| } | ||
| } | ||
|
|
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| public static void set_cur_value(int value, AudioBar c) | ||
| { | ||
| if (c != null) | ||
| { | ||
| c.cur_value = value; | ||
| Log.i(TAG, "set_cur_value:*********AApaint*********"); | ||
| c.repaint(); | ||
| } | ||
| else | ||
| { | ||
| Log.i(TAG, "set_cur_value:EE01"); | ||
| } | ||
| } | ||
|
|
||
| public static float audio_vu(byte[] data, int sample_count) | ||
| { | ||
| float sum = 0.0f; | ||
| final float factor = (100.0f / 140.0f); | ||
|
|
||
| if (sample_count > 1) | ||
| { | ||
| for (int i = 0; i < sample_count; i = i + 2) | ||
| { | ||
| short s = (short) ((data[i] & 0xff) | (data[i + 1] << 8)); | ||
| sum = sum + (Math.abs(s) / 32767.0f); | ||
| } | ||
|
|
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| float vu = (float) (20.0f * Math.log(sum)); | ||
| return vu * factor; | ||
| } | ||
| return 0.0f; | ||
| } | ||
| } |
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