File indexing completed on 2024-05-19 05:35:21

 //////////////////////////////////////////////////////////////////////////////
 // oxygenscrollbardata.cpp
 // data container for QTabBar animations
 // -------------------
 //
 // SPDX-FileCopyrightText: 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
 //
 // SPDX-License-Identifier: MIT
 //////////////////////////////////////////////////////////////////////////////
 
 #include "oxygenscrollbardata.h"
 
 #include <QHoverEvent>
 #include <QScrollBar>
 #include <QStyleOptionSlider>
 
 Q_GUI_EXPORT QStyleOptionSlider qt_qscrollbarStyleOption(QScrollBar *);
 
 namespace Oxygen
 {
 //______________________________________________
 ScrollBarData::ScrollBarData(QObject *parent, QWidget *target, int duration)
     : WidgetStateData(parent, target, duration)
     , _position(-1, -1)
 {
     target->installEventFilter(this);
 
     _addLineData._animation = new Animation(duration, this);
     _subLineData._animation = new Animation(duration, this);
 
     connect(addLineAnimation().data(), SIGNAL(finished()), SLOT(clearAddLineRect()));
     connect(subLineAnimation().data(), SIGNAL(finished()), SLOT(clearSubLineRect()));
 
     // setup animation
     setupAnimation(addLineAnimation(), "addLineOpacity");
     setupAnimation(subLineAnimation(), "subLineOpacity");
 }
 
 //______________________________________________
 bool ScrollBarData::eventFilter(QObject *object, QEvent *event)
 {
     if (object != target().data()) {
         return WidgetStateData::eventFilter(object, event);
     }
 
     // check event type
     switch (event->type()) {
     case QEvent::HoverEnter:
     case QEvent::HoverMove:
         hoverMoveEvent(object, event);
         break;
 
     case QEvent::HoverLeave:
         hoverLeaveEvent(object, event);
         break;
 
     default:
         break;
     }
 
     return WidgetStateData::eventFilter(object, event);
 }
 
 //______________________________________________
 const Animation::Pointer &ScrollBarData::animation(QStyle::SubControl subcontrol) const
 {
     switch (subcontrol) {
     default:
     case QStyle::SC_ScrollBarSlider:
         return animation();
 
     case QStyle::SC_ScrollBarAddLine:
         return addLineAnimation();
 
     case QStyle::SC_ScrollBarSubLine:
         return subLineAnimation();
     }
 }
 
 //______________________________________________
 qreal ScrollBarData::opacity(QStyle::SubControl subcontrol) const
 {
     switch (subcontrol) {
     default:
     case QStyle::SC_ScrollBarSlider:
         return opacity();
 
     case QStyle::SC_ScrollBarAddLine:
         return addLineOpacity();
 
     case QStyle::SC_ScrollBarSubLine:
         return subLineOpacity();
     }
 }
 
 //______________________________________________
 void ScrollBarData::hoverMoveEvent(QObject *object, QEvent *event)
 {
     // try cast object to scrollbar
     QScrollBar *scrollBar(qobject_cast<QScrollBar *>(object));
     if (!scrollBar || scrollBar->isSliderDown())
         return;
 
     // retrieve scrollbar option
     QStyleOptionSlider opt(qt_qscrollbarStyleOption(qobject_cast<QScrollBar *>(object)));
 
     // cast event
     QHoverEvent *hoverEvent = static_cast<QHoverEvent *>(event);
     QStyle::SubControl hoverControl = scrollBar->style()->hitTestComplexControl(QStyle::CC_ScrollBar, &opt, hoverEvent->pos(), scrollBar);
 
     // update hover state
     updateAddLineArrow(hoverControl);
     updateSubLineArrow(hoverControl);
 
     // store position
     _position = hoverEvent->pos();
 }
 
 //______________________________________________
 void ScrollBarData::hoverLeaveEvent(QObject *object, QEvent *event)
 {
     Q_UNUSED(object);
     Q_UNUSED(event);
 
     // reset hover state
     updateSubLineArrow(QStyle::SC_None);
     updateAddLineArrow(QStyle::SC_None);
 
     // reset mouse position
     _position = QPoint(-1, -1);
 }
 
 //_____________________________________________________________________
 void ScrollBarData::updateSubLineArrow(QStyle::SubControl hoverControl)
 {
     if (hoverControl == QStyle::SC_ScrollBarSubLine) {
         if (!subLineArrowHovered()) {
             setSubLineArrowHovered(true);
             if (enabled()) {
                 subLineAnimation().data()->setDirection(Animation::Forward);
                 if (!subLineAnimation().data()->isRunning())
                     subLineAnimation().data()->start();
             } else
                 setDirty();
         }
 
     } else {
         if (subLineArrowHovered()) {
             setSubLineArrowHovered(false);
             if (enabled()) {
                 subLineAnimation().data()->setDirection(Animation::Backward);
                 if (!subLineAnimation().data()->isRunning())
                     subLineAnimation().data()->start();
             } else
                 setDirty();
         }
     }
 }
 
 //_____________________________________________________________________
 void ScrollBarData::updateAddLineArrow(QStyle::SubControl hoverControl)
 {
     if (hoverControl == QStyle::SC_ScrollBarAddLine) {
         if (!addLineArrowHovered()) {
             setAddLineArrowHovered(true);
             if (enabled()) {
                 addLineAnimation().data()->setDirection(Animation::Forward);
                 if (!addLineAnimation().data()->isRunning())
                     addLineAnimation().data()->start();
             } else
                 setDirty();
         }
 
     } else {
         if (addLineArrowHovered()) {
             setAddLineArrowHovered(false);
             if (enabled()) {
                 addLineAnimation().data()->setDirection(Animation::Backward);
                 if (!addLineAnimation().data()->isRunning())
                     addLineAnimation().data()->start();
             } else
                 setDirty();
         }
     }
 }
 }