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