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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /juk/slideraction.cpp
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/***************************************************************************
+ 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: