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40
41 #include "volumebutton.h"
42
43 #include <QtWidgets>
44
VolumeButton(QWidget * parent)45 VolumeButton::VolumeButton(QWidget *parent) :
46 QToolButton(parent)
47 {
48 setIcon(style()->standardIcon(QStyle::SP_MediaVolume));
49 setPopupMode(QToolButton::InstantPopup);
50
51 QWidget *popup = new QWidget(this);
52
53 slider = new QSlider(Qt::Horizontal, popup);
54 slider->setRange(0, 100);
55 connect(slider, &QAbstractSlider::valueChanged, this, &VolumeButton::volumeChanged);
56
57 label = new QLabel(popup);
58 label->setAlignment(Qt::AlignCenter);
59 label->setNum(100);
60 label->setMinimumWidth(label->sizeHint().width());
61
62 typedef void(QLabel::*IntSlot)(int);
63 connect(slider, &QAbstractSlider::valueChanged, label, static_cast<IntSlot>(&QLabel::setNum));
64
65 QBoxLayout *popupLayout = new QHBoxLayout(popup);
66 popupLayout->setMargin(2);
67 popupLayout->addWidget(slider);
68 popupLayout->addWidget(label);
69
70 QWidgetAction *action = new QWidgetAction(this);
71 action->setDefaultWidget(popup);
72
73 menu = new QMenu(this);
74 menu->addAction(action);
75 setMenu(menu);
76 }
77
increaseVolume()78 void VolumeButton::increaseVolume()
79 {
80 slider->triggerAction(QSlider::SliderPageStepAdd);
81 }
82
descreaseVolume()83 void VolumeButton::descreaseVolume()
84 {
85 slider->triggerAction(QSlider::SliderPageStepSub);
86 }
87
volume() const88 int VolumeButton::volume() const
89 {
90 return slider->value();
91 }
92
setVolume(int volume)93 void VolumeButton::setVolume(int volume)
94 {
95 slider->setValue(volume);
96 }
97
98