diff options
Diffstat (limited to 'juk/slideraction.cpp')
| -rw-r--r-- | juk/slideraction.cpp | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/juk/slideraction.cpp b/juk/slideraction.cpp new file mode 100644 index 00000000..eacb4242 --- /dev/null +++ b/juk/slideraction.cpp @@ -0,0 +1,357 @@ +/*************************************************************************** + begin : Wed Feb 6 2002 + copyright : (C) 2002 - 2004 by Scott Wheeler + email : wheeler@kde.org +***************************************************************************/ + +/*************************************************************************** + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ + +#include <ktoolbar.h> +#include <klocale.h> +#include <kiconloader.h> +#include <kdebug.h> + +#include <qtooltip.h> +#include <qlayout.h> +#include <qlabel.h> +#include <qtimer.h> + +#include "slideraction.h" + +//////////////////////////////////////////////////////////////////////////////// +// convenience class +//////////////////////////////////////////////////////////////////////////////// + +/** + * This "custom" slider reverses the left and middle buttons. Typically the + * middle button "instantly" seeks rather than moving the slider towards the + * click position in fixed intervals. This behavior has now been mapped on + * to the left mouse button. + */ + +class TrackPositionSlider : public QSlider +{ +public: + TrackPositionSlider(QWidget *parent, const char *name) : QSlider(parent, name) + { + setFocusPolicy(NoFocus); + } + +protected: + virtual void mousePressEvent(QMouseEvent *e) + { + if(e->button() == LeftButton) { + QMouseEvent reverse(QEvent::MouseButtonPress, e->pos(), MidButton, e->state()); + QSlider::mousePressEvent(&reverse); + emit sliderPressed(); + } + else if(e->button() == MidButton) { + QMouseEvent reverse(QEvent::MouseButtonPress, e->pos(), LeftButton, e->state()); + QSlider::mousePressEvent(&reverse); + } + } +}; + +//////////////////////////////////////////////////////////////////////////////// +// VolumeSlider implementation +//////////////////////////////////////////////////////////////////////////////// + +VolumeSlider::VolumeSlider(Orientation o, QWidget *parent, const char *name) : + QSlider(o, parent, name) +{ + connect(this, SIGNAL(valueChanged(int)), this, SLOT(slotValueChanged(int))); +} + +void VolumeSlider::wheelEvent(QWheelEvent *e) +{ + if(orientation() == Horizontal) { + QWheelEvent transposed(e->pos(), -(e->delta()), e->state(), e->orientation()); + QSlider::wheelEvent(&transposed); + } + else + QSlider::wheelEvent(e); +} + +void VolumeSlider::focusInEvent(QFocusEvent *) +{ + clearFocus(); +} + +int VolumeSlider::volume() const +{ + if(orientation() == Horizontal) + return value(); + else + return maxValue() - value(); +} + +void VolumeSlider::setVolume(int value) +{ + if(orientation() == Horizontal) + setValue(value); + else + setValue(maxValue() - value); +} + +void VolumeSlider::setOrientation(Orientation o) +{ + if(o == orientation()) + return; + + blockSignals(true); + setValue(maxValue() - value()); + blockSignals(false); + QSlider::setOrientation(o); +} + +void VolumeSlider::slotValueChanged(int value) +{ + if(orientation() == Horizontal) + emit signalVolumeChanged(value); + else + emit signalVolumeChanged(maxValue() - value); +} + +//////////////////////////////////////////////////////////////////////////////// +// public members +//////////////////////////////////////////////////////////////////////////////// + +const int SliderAction::minPosition = 0; +const int SliderAction::maxPosition = 1000; + +SliderAction::SliderAction(const QString &text, QObject *parent, const char *name) + : KAction(text, 0, parent, name), + m_toolBar(0), + m_layout(0), + m_trackPositionSlider(0), + m_volumeSlider(0), + m_dragging(false), + m_volumeDragging(false) +{ + +} + +SliderAction::~SliderAction() +{ + +} + +int SliderAction::plug(QWidget *parent, int index) +{ + QWidget *w = createWidget(parent); + + if(!w) + return -1; + + // the check for null makes sure that there is only one toolbar that this is + // "plugged" in to + + if(parent->inherits("KToolBar") && !m_toolBar) { + m_toolBar = static_cast<KToolBar *>(parent); + + int id = KAction::getToolButtonID(); + + m_toolBar->insertWidget(id, w->width(), w, index); + + addContainer(m_toolBar, id); + + connect(m_toolBar, SIGNAL(destroyed()), this, SLOT(slotToolbarDestroyed())); + connect(m_toolBar, SIGNAL(orientationChanged(Orientation)), + this, SLOT(slotUpdateOrientation())); + connect(m_toolBar, SIGNAL(placeChanged(QDockWindow::Place)), + this, SLOT(slotUpdateOrientation())); + + slotUpdateOrientation(); + return (containerCount() - 1); + } + else + slotUpdateOrientation(); + + return -1; +} + + +void SliderAction::unplug(QWidget *parent) +{ + if (parent->inherits("KToolBar")) { + m_toolBar = static_cast<KToolBar *>(parent); + + int index = findContainer(m_toolBar); + if (index != -1) { + m_toolBar->removeItem(itemId(index)); + removeContainer(index); + + m_toolBar = 0; + } + } +} + +//////////////////////////////////////////////////////////////////////////////// +// public slots +//////////////////////////////////////////////////////////////////////////////// + +void SliderAction::slotUpdateOrientation() +{ + // if the toolbar is not null and either the dockWindow not defined or is the toolbar + + if(!m_toolBar) + return; + + if(m_toolBar->barPos() == KToolBar::Right || m_toolBar->barPos() == KToolBar::Left) { + m_trackPositionSlider->setOrientation(Vertical); + m_volumeSlider->setOrientation(Vertical); + m_layout->setDirection(QBoxLayout::TopToBottom); + } + else { + m_trackPositionSlider->setOrientation(Horizontal); + m_volumeSlider->setOrientation(Horizontal); + m_layout->setDirection(QBoxLayout::LeftToRight); + } + slotUpdateSize(); +} + +//////////////////////////////////////////////////////////////////////////////// +// private members +//////////////////////////////////////////////////////////////////////////////// + +QWidget *SliderAction::createWidget(QWidget *parent) // virtual -- used by base class +{ + if(parent) { + QWidget *base = new QWidget(parent); + base->setBackgroundMode(parent->backgroundMode()); + base->setName("kde toolbar widget"); + + KToolBar *toolBar = dynamic_cast<KToolBar *>(parent); + + if(toolBar) + toolBar->setStretchableWidget(base); + + Orientation orientation; + + if(toolBar && toolBar->barPos() == KToolBar::Right || toolBar->barPos() == KToolBar::Left) + orientation = Vertical; + else + orientation = Horizontal; + + m_layout = new QBoxLayout(base, QBoxLayout::TopToBottom, 5, 5); + + m_layout->addItem(new QSpacerItem(20, 1)); + + QLabel *trackPositionLabel = new QLabel(base); + trackPositionLabel->setName("kde toolbar widget"); + trackPositionLabel->setPixmap(SmallIcon("player_time")); + QToolTip::add(trackPositionLabel, i18n("Track position")); + m_layout->addWidget(trackPositionLabel); + + m_trackPositionSlider = new TrackPositionSlider(base, "trackPositionSlider"); + m_trackPositionSlider->setMaxValue(maxPosition); + QToolTip::add(m_trackPositionSlider, i18n("Track position")); + m_layout->addWidget(m_trackPositionSlider); + connect(m_trackPositionSlider, SIGNAL(sliderPressed()), this, SLOT(slotSliderPressed())); + connect(m_trackPositionSlider, SIGNAL(sliderReleased()), this, SLOT(slotSliderReleased())); + + m_layout->addItem(new QSpacerItem(10, 1)); + + QLabel *volumeLabel = new QLabel(base); + volumeLabel->setName("kde toolbar widget"); + volumeLabel->setPixmap(SmallIcon("player_volume")); + QToolTip::add(volumeLabel, i18n("Volume")); + m_layout->addWidget(volumeLabel); + + m_volumeSlider = new VolumeSlider(orientation, base, "volumeSlider"); + m_volumeSlider->setMaxValue(100); + QToolTip::add(m_volumeSlider, i18n("Volume")); + m_layout->addWidget(m_volumeSlider); + connect(m_volumeSlider, SIGNAL(signalVolumeChanged(int)), SIGNAL(signalVolumeChanged(int))); + connect(m_volumeSlider, SIGNAL(sliderPressed()), this, SLOT(slotVolumeSliderPressed())); + connect(m_volumeSlider, SIGNAL(sliderReleased()), this, SLOT(slotVolumeSliderReleased())); + + m_volumeSlider->setName("kde toolbar widget"); + m_trackPositionSlider->setName("kde toolbar widget"); + + m_layout->setStretchFactor(m_trackPositionSlider, 4); + m_layout->setStretchFactor(m_volumeSlider, 1); + + connect(parent, SIGNAL(modechange()), this, SLOT(slotUpdateSize())); + + return base; + } + else + return 0; +} + +//////////////////////////////////////////////////////////////////////////////// +// private slots +//////////////////////////////////////////////////////////////////////////////// + +void SliderAction::slotUpdateSize() +{ + static const int offset = 3; + static const int absoluteMax = 10000; + + if(!m_toolBar) + return; + + if(m_toolBar->barPos() == KToolBar::Right || m_toolBar->barPos() == KToolBar::Left) { + m_volumeSlider->setMaximumWidth(m_toolBar->iconSize() - offset); + m_volumeSlider->setMaximumHeight(volumeMax); + + m_trackPositionSlider->setMaximumWidth(m_toolBar->iconSize() - offset); + m_trackPositionSlider->setMaximumHeight(absoluteMax); + } + else { + m_volumeSlider->setMaximumHeight(m_toolBar->iconSize() - offset); + m_volumeSlider->setMaximumWidth(volumeMax); + + m_trackPositionSlider->setMaximumHeight(m_toolBar->iconSize() - offset); + m_trackPositionSlider->setMaximumWidth(absoluteMax); + } +} + +void SliderAction::slotSliderPressed() +{ + m_dragging = true; +} + +void SliderAction::slotSliderReleased() +{ + m_dragging = false; + emit signalPositionChanged(m_trackPositionSlider->value()); +} + +void SliderAction::slotVolumeSliderPressed() +{ + m_volumeDragging = true; +} + +void SliderAction::slotVolumeSliderReleased() +{ + m_volumeDragging = false; + emit signalVolumeChanged(m_volumeSlider->value()); +} + +void SliderAction::slotToolbarDestroyed() +{ + int index = findContainer(m_toolBar); + if(index != -1) + removeContainer(index); + + m_toolBar = 0; + + // This is probably a leak, but this code path hardly ever occurs, and it's + // too hard to debug correctly. + + m_trackPositionSlider = 0; + m_volumeSlider = 0; +} + +#include "slideraction.moc" + +// vim: set et sw=4 ts=4: |