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

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: