ciwidgetmgr.cpp

/***************************************************************************
 *   Copyright (C) 2005 by David Saxton                                    *
 *   david@bluehaze.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 "cnitem.h"
#include "canvasitemparts.h"
#include "eventinfo.h"

#include <kdebug.h>

CIWidgetMgr::CIWidgetMgr( QCanvas *canvas, CNItem *item )
{
        p_cnItem = item;
        p_canvas = canvas;
}

CIWidgetMgr::~CIWidgetMgr()
{
        // QCanvas deletes our items for us. Actually, it pretty much insists on deleting them,
        // despite me telling it not to, so if I delete them then it gets confused and crashes.
        // Naughty QCanvas!
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                delete it.data();
        }
        m_widgetMap.clear();
}

void CIWidgetMgr::setWidgetsPos( const QPoint &pos )
{
        m_pos = pos;
}

void CIWidgetMgr::setDrawWidgets( bool draw )
{
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                draw ? it.data()->show() : it.data()->hide();
        }
}

Widget *CIWidgetMgr::widgetWithID( const QString &id ) const
{
        WidgetMap::const_iterator it = m_widgetMap.find(id);
        if(it == m_widgetMap.end() ) return 0;
        else return it.data();
}

Button *CIWidgetMgr::button( const QString &id ) const
{
        return dynamic_cast<Button*>(widgetWithID(id));
}

Slider *CIWidgetMgr::slider( const QString &id ) const
{
        return dynamic_cast<Slider*>(widgetWithID(id));
}

void CIWidgetMgr::setButtonState( const QString &id, int state )
{
        Button *b = button(id);
        if(!b) return;
        
        // Actually, we don't want to check to see if we are already down; this way,
        // we get toggle events when loading from file
//      bool oldState = b->isDown();
//      if ( oldState == state )
//              return;
        
        b->setState(state);
}

void CIWidgetMgr::drawWidgets( QPainter &p )
{
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                it.data()->drawShape(p);
        }
}

void CIWidgetMgr::removeWidget( const QString & id )
{
        if ( !m_widgetMap.contains(id) )
                return;
        
        delete m_widgetMap[id];
        m_widgetMap.remove(id);
}

Button* CIWidgetMgr::addButton( const QString &id, const QRect & pos, const QString &display, bool toggle )
{
        WidgetMap::iterator it;
        
        Button *button = new Button( id, p_cnItem, toggle, pos, p_canvas );
        (dynamic_cast<QButton*>(button->widget()))->setText(display);
        
        it = m_widgetMap.find(id);

        if ( it == m_widgetMap.end() )
        {
                m_widgetMap[id] = button;
        } else {
                kdWarning() << "CIWidgetMgr::addButton: Attempting to re-add button with same id as previous"<<endl;
                delete it.data();
                it.data() = button;
        }
        
        p_cnItem->updateAttachedPositioning();
        return button;
}

Button* CIWidgetMgr::addButton( const QString &id, const QRect & pos, QPixmap pixmap, bool toggle )
{
        WidgetMap::iterator it;
        
        Button *button = new Button( id, p_cnItem, toggle, pos, p_canvas );
        button->setPixmap(pixmap);
        
        it = m_widgetMap.find(id);

        if ( it == m_widgetMap.end() )
        {
                m_widgetMap[id] = button;
        } else {
                kdWarning() << "CIWidgetMgr::addButton: Attempting to re-add button with same id as previous"<<endl;
                delete it.data();
                it.data() = button;
        }
        
        p_cnItem->updateAttachedPositioning();
        return button;
}


Slider* CIWidgetMgr::addSlider( const QString &id, int minValue, int maxValue, int pageStep, int value, Qt::Orientation orientation, const QRect & pos )
{
        Slider *slider = new Slider( id, p_cnItem, pos, p_canvas );
        QSlider *qslider = dynamic_cast<QSlider*>(slider->widget());
        
        qslider->setMinValue(minValue);
        qslider->setMaxValue(maxValue);
        qslider->setPageStep(pageStep);
        qslider->setValue(value);
        slider->setOrientation(orientation);
        
        WidgetMap::iterator it = m_widgetMap.find(id);

        if ( it == m_widgetMap.end() ) {
                m_widgetMap[id] = slider;
        } else {
                kdWarning() << "CIWidgetMgr::addSlider: Attempting to re-add slider with same id as previous"<<endl;
                delete slider;
                return 0;
        }
        
        p_cnItem->updateAttachedPositioning();
        return slider;
}

bool CIWidgetMgr::mousePressEvent( const EventInfo &info )
{
        QMouseEvent *e = info.mousePressEvent( 0, 0 );
        
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                if ( it.data()->rect().contains(info.pos) ) {
                        it.data()->mousePressEvent(e);

                        if (e->isAccepted()) {
                                delete e;
                                return true;
                        }
                }
        }
        delete e;
        return false;
}

bool CIWidgetMgr::mouseReleaseEvent( const EventInfo &info )
{
        QMouseEvent *e = info.mouseReleaseEvent( 0, 0 );
        
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                it.data()->mouseReleaseEvent(e);
        }

        bool accepted = e->isAccepted();
        delete e;
        return accepted;
}

bool CIWidgetMgr::mouseDoubleClickEvent( const EventInfo &info )
{
        QMouseEvent *e = info.mouseDoubleClickEvent( 0, 0 );

        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                if ( it.data()->rect().contains(info.pos) )
                {
                        it.data()->mouseDoubleClickEvent(e);
                        if (e->isAccepted())
                        {
                                delete e;
                                return true;
                        }
                }
        }
        delete e;
        return false;
}

bool CIWidgetMgr::mouseMoveEvent( const EventInfo &info )
{
        QMouseEvent *e = info.mouseMoveEvent( 0, 0 );
        
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it ) {
                it.data()->mouseMoveEvent(e);
                if (e->isAccepted()) {
                        delete e;
                        return true;
                }
        }
        delete e;
        return false;
}


bool CIWidgetMgr::wheelEvent(const EventInfo &info )
{
        QWheelEvent *e = info.wheelEvent( 0, 0 );
        
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                if ( it.data()->rect().contains(info.pos) ) {
                        it.data()->wheelEvent(e);
                        if (e->isAccepted()) {
                                delete e;
                                return true;
                        }
                }
        }

        delete e;
        return false;
}

void CIWidgetMgr::enterEvent()
{
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                it.data()->enterEvent();
        }
}

void CIWidgetMgr::leaveEvent()
{
        const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
        for ( WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it )
        {
                it.data()->leaveEvent();
        }
}

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