File: volumebutton.cpp

package info (click to toggle)
lxqt-panel 2.2.2-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 16,076 kB
  • sloc: cpp: 27,654; xml: 798; makefile: 19
file content (150 lines) | stat: -rw-r--r-- 4,618 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/* BEGIN_COMMON_COPYRIGHT_HEADER
 * (c)LGPL2+
 *
 * LXQt - a lightweight, Qt based, desktop toolset
 * https://lxqt.org
 *
 * Copyright: 2012 Razor team
 * Authors:
 *   Johannes Zellner <webmaster@nebulon.de>
 *
 * This program or library is free software; you can redistribute it
 * and/or modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General
 * Public License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA
 *
 * END_COMMON_COPYRIGHT_HEADER */

#include "volumebutton.h"

#include "volumepopup.h"
#include "audiodevice.h"

#include <QSlider>
#include <QMouseEvent>
#include <QProcess>
#include <QToolTip>

#include <XdgIcon>
#include "../panel/ilxqtpanel.h"
#include "../panel/ilxqtpanelplugin.h"

VolumeButton::VolumeButton(ILXQtPanelPlugin *plugin, QWidget* parent):
        QToolButton(parent),
        mPlugin(plugin),
        m_muteOnMiddleClick(true)
{
    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    setAutoRaise(true);
    setMouseTracking(true);
    // initial icon for button. It will be replaced after devices scan.
    // In the worst case - no soundcard/pulse - is found it remains
    // in the button but at least the button is not blank ("invisible")
    handleStockIconChanged(QStringLiteral("dialog-error"));
    m_volumePopup = new VolumePopup(this);

    m_popupHideTimer.setInterval(1000);
    connect(this,              &VolumeButton::clicked, this, &VolumeButton::toggleVolumeSlider);
    connect(&m_popupHideTimer, &QTimer::timeout,       this, &VolumeButton::hideVolumeSlider);

    connect(m_volumePopup, &VolumePopup::mouseEntered, &m_popupHideTimer, &QTimer::stop);
    connect(m_volumePopup, &VolumePopup::mouseLeft,    this, [this] { m_popupHideTimer.start(); } );

    connect(m_volumePopup, &VolumePopup::launchMixer,      this, &VolumeButton::handleMixerLaunch);
    connect(m_volumePopup, &VolumePopup::stockIconChanged, this, &VolumeButton::handleStockIconChanged);
}

VolumeButton::~VolumeButton() = default;

void VolumeButton::setMuteOnMiddleClick(bool state)
{
    m_muteOnMiddleClick = state;
}

void VolumeButton::setMixerCommand(const QString &command)
{
    m_mixerParams = QProcess::splitCommand(command);
    m_mixerCommand = m_mixerParams.empty() ? QString{} : m_mixerParams.takeFirst();
}

void VolumeButton::enterEvent(QEnterEvent *event)
{
    // show tooltip immediately on entering widget
    QToolTip::showText(event->globalPosition().toPoint(), toolTip(), this);
}

void VolumeButton::mouseMoveEvent(QMouseEvent *event)
{
    QToolButton::mouseMoveEvent(event);
    // show tooltip immediately on moving the mouse
    if (!QToolTip::isVisible()) // prevent sliding of tooltip
        QToolTip::showText(event->globalPosition().toPoint(), toolTip(), this);
}

void VolumeButton::wheelEvent(QWheelEvent *event)
{
    m_volumePopup->handleWheelEvent(event);
}

void VolumeButton::mouseReleaseEvent(QMouseEvent *event)
{
    if (event->button() == Qt::MiddleButton && m_muteOnMiddleClick) {
        if (m_volumePopup->device()) {
            m_volumePopup->device()->toggleMute();
            return;
        }
    }

    QToolButton::mouseReleaseEvent(event);
}

void VolumeButton::toggleVolumeSlider()
{
    if (m_volumePopup->isVisible()) {
        hideVolumeSlider();
    } else {
        showVolumeSlider();
    }
}

void VolumeButton::showVolumeSlider()
{

    if (m_volumePopup->isVisible())
        return;

    m_popupHideTimer.stop();
    m_volumePopup->updateGeometry();
    m_volumePopup->adjustSize();
    QRect pos = mPlugin->calculatePopupWindowPos(m_volumePopup->size());
    mPlugin->willShowWindow(m_volumePopup);
    m_volumePopup->openAt(pos.topLeft(), Qt::TopLeftCorner);
    m_volumePopup->activateWindow();
}

void VolumeButton::hideVolumeSlider()
{
    // qDebug() << "hideVolumeSlider";
    m_popupHideTimer.stop();
    m_volumePopup->hide();
}

void VolumeButton::handleMixerLaunch()
{
    QProcess::startDetached(m_mixerCommand, m_mixerParams);
}

void VolumeButton::handleStockIconChanged(const QString &iconName)
{
    setIcon(XdgIcon::fromTheme(iconName));
}