//=============================================================================
//
//   File : kvi_tal_listview.cpp
//   Creation date : Mon Jan 22 2007 11:25:08 by Szymon Stefanek
//
//   This file is part of the KVirc irc client distribution
//   Copyright (C) 2007 Szymon Stefanek (pragma at kvirc dot net)
//
//   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 opinion) any later version.
//
//   This program is distributed in the HOPE that it will be USEFUL,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
//   See the GNU General Public License for more details.
//
//   You should have received a copy of the GNU General Public License
//   along with this program. If not, write to the Free Software Foundation,
//   Inc. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================

#define __KVILIB__
#include "kvi_tal_listview.h"

#include "kvi_pointerhashtable.h"


#ifdef COMPILE_USE_QT4
	#include <tqpainter.h>
	#include <tqstyle.h>
	#include <tq3header.h>
	#include <tqapplication.h>
	#include <tqhash.h>
	#include <tqstyleoption.h>
	#include <tqaccessible.h>

	static TQStyleOptionQ3ListView getStyleOption(const Q3ListView *lv, const Q3ListViewItem *item)
	{
	    TQStyleOptionQ3ListView opt;
	    opt.init(lv);
	    opt.subControls = TQStyle::SC_None;
	    opt.activeSubControls = TQStyle::SC_None;
	    TQWidget *vp = lv->viewport();
	    opt.viewportPalette = vp->palette();
	    opt.viewportBGRole = vp->backgroundRole();
	    opt.itemMargin = lv->itemMargin();
	    opt.sortColumn = 0;
	    opt.treeStepSize = lv->treeStepSize();
	    opt.rootIsDecorated = lv->rootIsDecorated();
	    bool firstItem = true;
	    while (item) {
	        TQStyleOptionQ3ListViewItem lvi;
	        lvi.height = item->height();
	        lvi.totalHeight = item->totalHeight();
	        lvi.itemY = item->itemPos();
	        lvi.childCount = item->childCount();
	        lvi.features = TQStyleOptionQ3ListViewItem::None;
	        lvi.state = TQStyle::State_None;
	        if (item->isEnabled())
	            lvi.state |= TQStyle::State_Enabled;
	        if (item->isOpen())
	            lvi.state |= TQStyle::State_Open;
	        if (item->isExpandable())
	            lvi.features |= TQStyleOptionQ3ListViewItem::Expandable;
	        if (item->multiLinesEnabled())
	            lvi.features |= TQStyleOptionQ3ListViewItem::MultiLine;
	        if (item->isVisible())
	            lvi.features |= TQStyleOptionQ3ListViewItem::Visible;
	        if (item->parent() && item->parent()->rtti() == 1
	            && static_cast<Q3CheckListItem *>(item->parent())->type() == Q3CheckListItem::Controller)
	            lvi.features |= TQStyleOptionQ3ListViewItem::ParentControl;
	        opt.items.append(lvi);
	        if (!firstItem) {
	            item = item->nextSibling();
	        } else {
	            firstItem = false;
	            item = item->firstChild();
	        }
	    }
	    return opt;
	}

	KviTalListView::KviTalListView(TQWidget * pParent)
	: Q3ListView(pParent)
	{
		connect(this,TQT_SIGNAL(selectionChanged(Q3ListViewItem *)),this,TQT_SLOT(redirect_selectionChanged(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(currentChanged(Q3ListViewItem *)),this,TQT_SLOT(redirect_currentChanged(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(clicked(Q3ListViewItem *)),this,TQT_SLOT(redirect_clicked(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(clicked(Q3ListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_clicked(Q3ListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(pressed(Q3ListViewItem *)),this,TQT_SLOT(redirect_pressed(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(pressed(Q3ListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_pressed(Q3ListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(doubleClicked(Q3ListViewItem *)),this,TQT_SLOT(redirect_doubleClicked(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(doubleClicked(Q3ListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_doubleClicked(Q3ListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(returnPressed(Q3ListViewItem *)),this,TQT_SLOT(redirect_returnPressed(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(spacePressed(Q3ListViewItem *)),this,TQT_SLOT(redirect_spacePressed(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(rightButtonClicked(Q3ListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_rightButtonClicked(Q3ListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(rightButtonPressed(Q3ListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_rightButtonPressed(Q3ListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(mouseButtonClicked(int,Q3ListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_mouseButtonClicked(int,Q3ListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(mouseButtonPressed(int,Q3ListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_mouseButtonPressed(int,Q3ListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(contextMenuRequested(Q3ListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_contextMenuRequested(Q3ListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(onItem(Q3ListViewItem *)),this,TQT_SLOT(redirect_onItem(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(expanded(Q3ListViewItem *)),this,TQT_SLOT(redirect_expanded(Q3ListViewItem *)));
		connect(this,TQT_SIGNAL(collapsed(Q3ListViewItem *)),this,TQT_SLOT(redirect_collapsed(Q3ListViewItem *)));
	}

	void KviTalListView::redirect_selectionChanged(Q3ListViewItem * pItem)
	{
		emit selectionChanged((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_currentChanged(Q3ListViewItem * pItem)
	{
		emit currentChanged((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_clicked(Q3ListViewItem * pItem)
	{
		emit clicked((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_clicked(Q3ListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit clicked((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_pressed(Q3ListViewItem * pItem)
	{
		emit pressed((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_pressed(Q3ListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit pressed((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_doubleClicked(Q3ListViewItem * pItem)
	{
		emit doubleClicked((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_doubleClicked(Q3ListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit doubleClicked((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_returnPressed(Q3ListViewItem * pItem)
	{
		emit returnPressed((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_spacePressed(Q3ListViewItem * pItem)
	{
		emit spacePressed((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_rightButtonClicked(Q3ListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit rightButtonClicked((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_rightButtonPressed(Q3ListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit rightButtonPressed((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_mouseButtonClicked(int iButton,Q3ListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit mouseButtonClicked(iButton,(KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_mouseButtonPressed(int iButton,Q3ListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit mouseButtonPressed(iButton,(KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_contextMenuRequested(Q3ListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit contextMenuRequested((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_onItem(Q3ListViewItem * pItem)
	{
		emit onItem((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_expanded(Q3ListViewItem * pItem)
	{
		emit expanded((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_collapsed(Q3ListViewItem * pItem)
	{
		emit collapsed((KviTalListViewItem *)pItem);
	}


	struct KviTalCheckListItemPrivate
	{
	    KviTalCheckListItemPrivate():
	        exclusive(0),
	        currentState(KviTalCheckListItem::Off),
	        tristate(false) {}
	
	    KviTalCheckListItem *exclusive;
	    KviTalCheckListItem::ToggleState currentState;
	    TQHash<KviTalCheckListItem *, KviTalCheckListItem::ToggleState> statesDict;
	    bool tristate;
	};

	KviTalCheckListItem::KviTalCheckListItem(KviTalCheckListItem *parent, const TQString &text,
	                                Type tt)
	    : KviTalListViewItem(parent, text, TQString())
	{
	    myType = tt;
	    init();
	    if (myType == RadioButton) {
	        if (parent->type() != RadioButtonController)
	            qWarning("KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
	                      "child of a controller");
	        else
	            d->exclusive = parent;
	    }
	}

	KviTalCheckListItem::KviTalCheckListItem(KviTalCheckListItem *parent, KviTalListViewItem *after,
	                                const TQString &text, Type tt)
	    : KviTalListViewItem(parent, after, text)
	{
	    myType = tt;
	    init();
	    if (myType == RadioButton) {
	        if (parent->type() != RadioButtonController)
	            qWarning("KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
	                      "child of a controller");
	        else
	            d->exclusive = parent;
	    }
	}
	
	KviTalCheckListItem::KviTalCheckListItem(KviTalListViewItem *parent, const TQString &text,
	                                Type tt)
	    : KviTalListViewItem(parent, text, TQString())
	{
	    myType = tt;
	    if (myType == RadioButton) {
	      qWarning("KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
	               "child of a KviTalCheckListItem");
	    }
	    init();
	}
	
	KviTalCheckListItem::KviTalCheckListItem(KviTalListViewItem *parent, KviTalListViewItem *after,
	                                const TQString &text, Type tt)
	    : KviTalListViewItem(parent, after, text)
	{
	    myType = tt;
	    if (myType == RadioButton) {
	        qWarning("KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
	                  "child of a KviTalCheckListItem");
	    }
	    init();
	}
	
	KviTalCheckListItem::KviTalCheckListItem(KviTalListView *parent, const TQString &text,
	                                Type tt)
	    : KviTalListViewItem(parent, text)
	{
	    myType = tt;
	    if (tt == RadioButton)
	        qWarning("KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
	                 "child of a KviTalCheckListItem");
	    init();
	}
	
	KviTalCheckListItem::KviTalCheckListItem(KviTalListView *parent, KviTalListViewItem *after,
	                                const TQString &text, Type tt)
	    : KviTalListViewItem(parent, after, text)
	{
	    myType = tt;
	    if (tt == RadioButton)
	        qWarning("KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
	                  "child of a KviTalCheckListItem");
	    init();
	}

	int KviTalCheckListItem::rtti() const
	{
	    return RTTI;
	}
	
	KviTalCheckListItem::KviTalCheckListItem(KviTalListView *parent, const TQString &text,
	                                const TQPixmap & p)
	    : KviTalListViewItem(parent, text)
	{
	    myType = RadioButtonController;
	    setPixmap(0, p);
	    init();
	}
	
	KviTalCheckListItem::KviTalCheckListItem(KviTalListViewItem *parent, const TQString &text,
	                                const TQPixmap & p)
	    : KviTalListViewItem(parent, text)
	{
	    myType = RadioButtonController;
	    setPixmap(0, p);
	    init();
	}
	
	void KviTalCheckListItem::init()
	{
	    d = new KviTalCheckListItemPrivate();
	    on = false; // ### remove on ver 4
	    // CheckBoxControllers by default have tristate set to true
	    if (myType == CheckBoxController)
	        setTristate(true);
	}

	KviTalCheckListItem::~KviTalCheckListItem()
	{
	    if (myType == RadioButton
	         && d->exclusive && d->exclusive->d
	         && d->exclusive->d->exclusive == this)
	        d->exclusive->turnOffChild();
	    d->exclusive = 0; // so the tqchildren won't try to access us.
	    delete d;
	    d = 0;
	}
	
	void KviTalCheckListItem::setTristate(bool b)
	{
	    if ((myType != CheckBoxController) && (myType != CheckBox)) {
	        qWarning("KviTalCheckListItem::setTristate(), has no effect on RadioButton "
	                  "or RadioButtonController.");
	        return;
	    }
	    d->tristate = b;
	}
	
	bool KviTalCheckListItem::isTristate() const
	{
	    return d->tristate;
	}
	
	KviTalCheckListItem::ToggleState KviTalCheckListItem::state() const
	{
	    if (!isTristate() && internalState() == NoChange)
	        return Off;
	    else
	        return d->currentState;
	}
	
	KviTalCheckListItem::ToggleState KviTalCheckListItem::internalState() const
	{
	    return d->currentState;
	}

	void KviTalCheckListItem::setState(ToggleState s)
	{
	    if (myType == CheckBoxController && state() == NoChange)
	        updateStoredState(this);
	    setState(s, true, true);
	}
	
	void KviTalCheckListItem::setState(ToggleState s, bool update, bool store)
	{
	
	    if (s == internalState())
	        return;
	
	    if (myType == CheckBox) {
	        setCurrentState(s);
	        stateChange(state());
	        if (update && parent() && parent()->rtti() == 1
	             && ((KviTalCheckListItem*)parent())->type() == CheckBoxController)
	            ((KviTalCheckListItem*)parent())->updateController(update, store);
	    } else if (myType == CheckBoxController) {
	        if (s == NoChange && childCount()) {
	            restoreState(this);
	        } else {
	            KviTalListViewItem *item = firstChild();
	            int childCount = 0;
	            while(item) {
	                if (item->rtti() == 1 &&
	                     (((KviTalCheckListItem*)item)->type() == CheckBox ||
	                       ((KviTalCheckListItem*)item)->type() == CheckBoxController)) {
	                    KviTalCheckListItem *checkItem = (KviTalCheckListItem*)item;
	                    checkItem->setState(s, false, false);
	                    childCount++;
	                }
	                item = item->nextSibling();
	            }
	            if (update) {
	                if (childCount > 0) {
	                    ToggleState oldState = internalState();
	                    updateController(false, false);
	                    if (oldState != internalState() &&
	                         parent() && parent()->rtti() == 1 &&
	                         ((KviTalCheckListItem*)parent())->type() == CheckBoxController)
	                        ((KviTalCheckListItem*)parent())->updateController(update, store);
	
	                        updateController(update, store);
	                } else {
	                    // if there are no tqchildren we simply set the CheckBoxController and update its parent
	                    setCurrentState(s);
	                    stateChange(state());
	                    if (parent() && parent()->rtti() == 1
	                         && ((KviTalCheckListItem*)parent())->type() == CheckBoxController)
	                        ((KviTalCheckListItem*)parent())->updateController(update, store);
	                }
	            } else {
	                setCurrentState(s);
	                stateChange(state());
	            }
	
	        }
	    } else if (myType == RadioButton) {
	        if (s == On) {
	            if (d->exclusive && d->exclusive->d->exclusive != this)
	                d->exclusive->turnOffChild();
	            setCurrentState(s);
	            if (d->exclusive)
	                d->exclusive->d->exclusive = this;
	        } else {
	            if (d->exclusive && d->exclusive->d->exclusive == this)
	                d->exclusive->d->exclusive = 0;
	            setCurrentState(Off);
	        }
	        stateChange(state());
	    }
	    tqrepaint();
	}
	
	void KviTalCheckListItem::setCurrentState(ToggleState s)
	{
	    ToggleState old = d->currentState;
	    d->currentState = s;
	    if (d->currentState == On)
	        on = true;
	    else
	        on = false;
	
	//#ifndef TQT_NO_ACCESSIBILITY
	//    if (old != d->currentState && listView())
	//        TQAccessible::updateAccessibility(listView()->viewport(), indexOfItem(this), TQAccessible::StateChanged);
	//#else
	//    Q_UNUSED(old);
	//#endif
	}
	
	void KviTalCheckListItem::setStoredState(ToggleState newState, KviTalCheckListItem *key)
	{
	    if (myType == CheckBox || myType == CheckBoxController)
	        d->statesDict[key] = newState;
	}

	KviTalCheckListItem::ToggleState KviTalCheckListItem::storedState(KviTalCheckListItem *key) const
	{
	    TQHash<KviTalCheckListItem *, KviTalCheckListItem::ToggleState>::Iterator it = d->statesDict.find(key);
	    if (it != d->statesDict.end())
	        return it.value();
	    else
	        return Off;
	}
	
	void KviTalCheckListItem::turnOffChild()
	{
	    if (myType == RadioButtonController && d->exclusive)
	        d->exclusive->setOn(false);
	}

	void KviTalCheckListItem::activate()
	{
	    KviTalListView * lv = listView();
	
	    if (lv && !lv->isEnabled() || !isEnabled())
	        return;
	
	    TQPoint pos;
	    int boxsize = lv->tqstyle()->pixelMetric(TQStyle::PM_CheckListButtonSize, 0, lv);
	    if (activatedPos(pos)) {
	        bool parentControl = false;
	        if (parent() && parent()->rtti() == 1  &&
	            ((KviTalCheckListItem*) parent())->type() == RadioButtonController)
	            parentControl = true;
	
	        int x = parentControl ? 0 : 3;
	        int align = lv->columnAlignment(0);
	        int marg = lv->itemMargin();
	        int y = 0;
	
	        if (align & TQt::AlignVCenter)
	            y = ((height() - boxsize) / 2) + marg;
	        else
	            y = (lv->fontMetrics().height() + 2 + marg - boxsize) / 2;
	
	        TQRect r(x, y, boxsize-3, boxsize-3);
	        // columns might have been swapped
	        r.moveBy(lv->header()->sectionPos(0), 0);
	        if (!r.contains(pos))
	            return;
	    }
	    if ((myType == CheckBox) || (myType == CheckBoxController))  {
	        //lv->d->startEdit = FALSE;
	        switch (internalState()) {
	        case On:
	            setState(Off);
	            break;
	        case Off:
	            if (!isTristate() && myType == CheckBox) {
	                setState(On);
	            } else {
	                setState(NoChange);
	                if (myType == CheckBoxController && internalState() != NoChange)
	                    setState(On);
	            }
	            break;
	        case NoChange:
	            setState(On);
	            break;
	        }
	        ignoreDoubleClick();
	    } else if (myType == RadioButton) {
	        setOn(true);
	        ignoreDoubleClick();
	    }
	}
	
	void KviTalCheckListItem::setOn(bool b )
	{
	    if (b)
	        setState(On , true, true);
	    else
	        setState(Off , true, true);
	}
	
	void KviTalCheckListItem::stateChange(bool)
	{
	}
	
	void KviTalCheckListItem::stateChange(ToggleState s)
	{
	    stateChange(s == On);
	}
	
	void KviTalCheckListItem::restoreState(KviTalCheckListItem *key, int depth)
	{
	    switch (type()) {
	    case CheckBox:
	        setCurrentState(storedState(key));
	        stateChange(state());
	        tqrepaint();
	        break;
	    case CheckBoxController: {
	        KviTalListViewItem *item = firstChild();
	        int childCount = 0;
	        while (item) {
	            // recursively calling restoreState for tqchildren of type CheckBox and CheckBoxController
	            if (item->rtti() == 1 &&
	                 (((KviTalCheckListItem*)item)->type() == CheckBox ||
	                   ((KviTalCheckListItem*)item)->type() == CheckBoxController)) {
	                ((KviTalCheckListItem*)item)->restoreState(key , depth+1);
	                childCount++;
	            }
	            item = item->nextSibling();
	        }
	        if (childCount > 0) {
	            if (depth == 0)
	                updateController(true);
	            else
	                updateController(false);
	        } else {
	            // if there are no tqchildren we retrieve the CheckBoxController state directly.
	            setState(storedState(key), true, false);
	        }
	    }
	        break;
	    default:
	        break;
	    }
	}
	
	void KviTalCheckListItem::updateController(bool update , bool store)
	{
	    if (myType != CheckBoxController)
	        return;
	
	    KviTalCheckListItem *controller = 0;
	    // checks if this CheckBoxController has another CheckBoxController as parent
	    if (parent() && parent()->rtti() == 1
	         && ((KviTalCheckListItem*)parent())->type() == CheckBoxController)
	        controller = (KviTalCheckListItem*)parent();
	
	    ToggleState theState = Off;
	    bool first = true;
	    KviTalListViewItem *item = firstChild();
	    while(item && theState != NoChange) {
	        if (item->rtti() == 1 &&
	             (((KviTalCheckListItem*)item)->type() == CheckBox ||
	               ((KviTalCheckListItem*)item)->type() == CheckBoxController)) {
	            KviTalCheckListItem *checkItem = (KviTalCheckListItem*)item;
	            if (first) {
	                theState = checkItem->internalState();
	                first = false;
	            } else {
	                if (checkItem->internalState() == NoChange ||
	                     theState != checkItem->internalState())
	                    theState = NoChange;
	                else
	                    theState = checkItem->internalState();
	            }
	        }
	        item = item->nextSibling();
	    }
	    if (internalState() != theState) {
	        setCurrentState(theState);
	        if (store && (internalState() == On || internalState() == Off))
	            updateStoredState(this);
	        stateChange(state());
	        if (update && controller) {
	            controller->updateController(update, store);
	        }
	        tqrepaint();
	    }
	}
	
	void KviTalCheckListItem::updateStoredState(KviTalCheckListItem *key)
	{
	    if (myType != CheckBoxController)
	        return;
	
	    KviTalListViewItem *item = firstChild();
	    while(item) {
	        if (item->rtti() == 1) {
	            KviTalCheckListItem *checkItem = (KviTalCheckListItem*)item;
	            if (checkItem->type() == CheckBox)
	                checkItem->setStoredState(checkItem->internalState(), key);
	            else if (checkItem->type() == CheckBoxController)
	                checkItem->updateStoredState(key);
	        }
	        item = item->nextSibling();
	    }
	    // this state is only needed if the CheckBoxController has no CheckBox / CheckBoxController tqchildren.
	    setStoredState(internalState() , key);
	}
	
	void KviTalCheckListItem::setup()
	{
	    KviTalListViewItem::setup();
	    int h = height();
	    KviTalListView *lv = listView();
	    if (lv)
	        h = qMax(lv->tqstyle()->pixelMetric(TQStyle::PM_CheckListButtonSize, 0, lv),
	                  h);
	    h = qMax(h, TQApplication::globalStrut().height());
	    setHeight(h);
	}
	
	int KviTalCheckListItem::width(const TQFontMetrics& fm, const KviTalListView* lv, int column) const
	{
	    int r = KviTalListViewItem::width(fm, lv, column);
	    if (column == 0) {
	        r += lv->itemMargin();
	        if (myType == RadioButtonController && pixmap(0)) {
	            //             r += 0;
	        } else {
	            r +=  lv->tqstyle()->pixelMetric(TQStyle::PM_CheckListButtonSize, 0, lv) + 4;
	        }
	    }
	    return qMax(r, TQApplication::globalStrut().width());
	}

	void KviTalCheckListItem::paintCell(TQPainter * p, const TQColorGroup & cg,
	                               int column, int width, int align)
	{
	    if (!p)
	        return;
	
	    KviTalListView *lv = listView();
	    if (!lv)
	        return;
	
	    const TQPalette::ColorRole crole = lv->foregroundRole();
	    if (cg.brush(crole) != lv->palette().brush(crole))
	        p->fillRect(0, 0, width, height(), cg.brush(crole));
	    else
	        lv->paintEmptyArea(p, TQRect(0, 0, width, height()));
	
	    if (column != 0) {
	        // The rest is text, or for subclasses to change.
	        KviTalListViewItem::paintCell(p, cg, column, width, align);
	        return;
	    }
	
	    bool parentControl = false;
	    if (parent() && parent()->rtti() == 1  &&
	         ((KviTalCheckListItem*) parent())->type() == RadioButtonController)
	        parentControl = true;
	
	    TQFontMetrics fm(lv->fontMetrics());
	    int boxsize = lv->tqstyle()->pixelMetric(myType == RadioButtonController ? TQStyle::PM_CheckListControllerSize :
	                                           TQStyle::PM_CheckListButtonSize, 0, lv);
	    int marg = lv->itemMargin();
	    int r = marg;
	
	    // Draw controller / checkbox / radiobutton ---------------------
	    TQStyle::State styleflags = TQStyle::State_None;
	    if (internalState() == On) {
	        styleflags |= TQStyle::State_On;
	    } else if (internalState() == NoChange) {
	        if (myType == CheckBoxController && !isTristate())
	            styleflags |= TQStyle::State_Off;
	        else
	            styleflags |= TQStyle::State_NoChange;
	    } else {
	        styleflags |= TQStyle::State_Off;
	    }
	    if (isSelected())
	        styleflags |= TQStyle::State_Selected;
	    if (isEnabled() && lv->isEnabled())
	        styleflags |= TQStyle::State_Enabled;
	    if (lv->window()->isActiveWindow())
	        styleflags |= TQStyle::State_Active;
	
	    if (myType == RadioButtonController) {
	        int x = 0;
	        if(!parentControl)
	            x += 3;
	        if (!pixmap(0)) {
	            TQStyleOptionQ3ListView opt = getStyleOption(lv, this);
	            opt.rect.setRect(x, 0, boxsize, fm.height() + 2 + marg);
	            opt.palette = cg;
	            opt.state = styleflags;
	            lv->tqstyle()->drawPrimitive(TQStyle::PE_Q3CheckListController, &opt, p, lv);
	            r += boxsize + 4;
	        }
	    } else {
	        Q_ASSERT(lv); //###
	        int x = 0;
	        int y = 0;
	        if (!parentControl)
	            x += 3;
	        if (align & TQt::AlignVCenter)
	            y = ((height() - boxsize) / 2) + marg;
	        else
	            y = (fm.height() + 2 + marg - boxsize) / 2;
	
	        TQStyleOptionQ3ListView opt = getStyleOption(lv, this);
	        opt.rect.setRect(x, y, boxsize, fm.height() + 2 + marg);
	        opt.palette = cg;
	        opt.state = styleflags;
	        lv->tqstyle()->drawPrimitive((myType == CheckBox || myType == CheckBoxController)
	                                    ? TQStyle::PE_Q3CheckListIndicator
	                                    : TQStyle::PE_Q3CheckListExclusiveIndicator, &opt, p, lv);
	        r += boxsize + 4;
	    }
	
	    // Draw text ----------------------------------------------------
	    p->translate(r, 0);
	    p->setPen(TQPen(cg.text()));
	    KviTalListViewItem::paintCell(p, cg, column, width - r, align);
	}
	
	void KviTalCheckListItem::paintFocus(TQPainter *p, const TQColorGroup & cg,
	                                 const TQRect & r)
	{
	    bool intersect = true;
	    KviTalListView *lv = listView();
	    if (lv && lv->header()->mapToActual(0) != 0) {
	        int xdepth = lv->treeStepSize() * (depth() + (lv->rootIsDecorated() ? 1 : 0)) + lv->itemMargin();
	        int p = lv->header()->cellPos(lv->header()->mapToActual(0));
	        xdepth += p;
	        intersect = r.intersects(TQRect(p, r.y(), xdepth - p + 1, r.height()));
	    }
	    bool parentControl = false;
	    if (parent() && parent()->rtti() == 1  &&
	         ((KviTalCheckListItem*) parent())->type() == RadioButtonController)
	        parentControl = true;
	    if (myType != RadioButtonController && intersect &&
	         (lv->rootIsDecorated() || myType == RadioButton ||
	          (myType == CheckBox && parentControl))) {
	        TQRect rect;
	        int boxsize = lv->tqstyle()->pixelMetric(TQStyle::PM_CheckListButtonSize, 0, lv);
	        if (lv->columnAlignment(0) == TQt::AlignCenter) {
	            TQFontMetrics fm(lv->font());
	            int bx = (lv->columnWidth(0) - (boxsize + fm.width(text())))/2 + boxsize;
	            if (bx < 0) bx = 0;
	            rect.setRect(r.x() + bx + 5, r.y(), r.width() - bx - 5,
	                          r.height());
	        } else
	            rect.setRect(r.x() + boxsize + 5, r.y(), r.width() - boxsize - 5,
	                          r.height());
	        KviTalListViewItem::paintFocus(p, cg, rect);
	    } else {
	        KviTalListViewItem::paintFocus(p, cg, r);
	    }
	}
	

	#include "kvi_tal_listview_qt4.moc"
#else
	#include <tqpainter.h>
	#include <tqstyle.h>
	#include <tqheader.h>
	#include <tqapplication.h>

	KviTalListView::KviTalListView(TQWidget * pParent)
	: TQListView(pParent)
	{
		connect(this,TQT_SIGNAL(selectionChanged(TQListViewItem *)),this,TQT_SLOT(redirect_selectionChanged(TQListViewItem *)));
		connect(this,TQT_SIGNAL(currentChanged(TQListViewItem *)),this,TQT_SLOT(redirect_currentChanged(TQListViewItem *)));
		connect(this,TQT_SIGNAL(clicked(TQListViewItem *)),this,TQT_SLOT(redirect_clicked(TQListViewItem *)));
		connect(this,TQT_SIGNAL(clicked(TQListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_clicked(TQListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(pressed(TQListViewItem *)),this,TQT_SLOT(redirect_pressed(TQListViewItem *)));
		connect(this,TQT_SIGNAL(pressed(TQListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_pressed(TQListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(doubleClicked(TQListViewItem *)),this,TQT_SLOT(redirect_doubleClicked(TQListViewItem *)));
		connect(this,TQT_SIGNAL(doubleClicked(TQListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_doubleClicked(TQListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(returnPressed(TQListViewItem *)),this,TQT_SLOT(redirect_returnPressed(TQListViewItem *)));
		connect(this,TQT_SIGNAL(spacePressed(TQListViewItem *)),this,TQT_SLOT(redirect_spacePressed(TQListViewItem *)));
		connect(this,TQT_SIGNAL(rightButtonClicked(TQListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_rightButtonClicked(TQListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(rightButtonPressed(TQListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_rightButtonPressed(TQListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(mouseButtonClicked(int,TQListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_mouseButtonClicked(int,TQListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(mouseButtonPressed(int,TQListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_mouseButtonPressed(int,TQListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(contextMenuRequested(TQListViewItem *,const TQPoint &,int)),this,TQT_SLOT(redirect_contextMenuRequested(TQListViewItem *,const TQPoint &,int)));
		connect(this,TQT_SIGNAL(onItem(TQListViewItem *)),this,TQT_SLOT(redirect_onItem(TQListViewItem *)));
		connect(this,TQT_SIGNAL(expanded(TQListViewItem *)),this,TQT_SLOT(redirect_expanded(TQListViewItem *)));
		connect(this,TQT_SIGNAL(collapsed(TQListViewItem *)),this,TQT_SLOT(redirect_collapsed(TQListViewItem *)));
	}

	void KviTalListView::redirect_selectionChanged(TQListViewItem * pItem)
	{
		emit selectionChanged((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_currentChanged(TQListViewItem * pItem)
	{
		emit currentChanged((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_clicked(TQListViewItem * pItem)
	{
		emit clicked((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_clicked(TQListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit clicked((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_pressed(TQListViewItem * pItem)
	{
		emit pressed((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_pressed(TQListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit pressed((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_doubleClicked(TQListViewItem * pItem)
	{
		emit doubleClicked((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_doubleClicked(TQListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit doubleClicked((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_returnPressed(TQListViewItem * pItem)
	{
		emit returnPressed((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_spacePressed(TQListViewItem * pItem)
	{
		emit spacePressed((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_rightButtonClicked(TQListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit rightButtonClicked((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_rightButtonPressed(TQListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit rightButtonPressed((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_mouseButtonClicked(int iButton,TQListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit mouseButtonClicked(iButton,(KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_mouseButtonPressed(int iButton,TQListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit mouseButtonPressed(iButton,(KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_contextMenuRequested(TQListViewItem * pItem,const TQPoint &pnt,int uColumn)
	{
		emit contextMenuRequested((KviTalListViewItem *)pItem,pnt,uColumn);
	}

	void KviTalListView::redirect_onItem(TQListViewItem * pItem)
	{
		emit onItem((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_expanded(TQListViewItem * pItem)
	{
		emit expanded((KviTalListViewItem *)pItem);
	}

	void KviTalListView::redirect_collapsed(TQListViewItem * pItem)
	{
		emit collapsed((KviTalListViewItem *)pItem);
	}

	struct KviTalCheckListItemPrivate
	{
	    KviTalCheckListItemPrivate():
		exclusive( 0 ),
		currentState( KviTalCheckListItem::Off ),
		statesDict( 0 ),
		tristate( FALSE ) {}
	
	    KviTalCheckListItem *exclusive;
	    KviTalCheckListItem::ToggleState currentState;
	    KviPointerHashTable<void *,KviTalCheckListItem::ToggleState> *statesDict;
	    bool tristate;
	};
	
	// ### obscenity is warranted.
	
	KviTalCheckListItem::KviTalCheckListItem( KviTalCheckListItem *parent, const TQString &text,
					Type tt )
	    : KviTalListViewItem( parent, text, TQString() )
	{
	    myType = tt;
	    init();
	    if ( myType == RadioButton ) {
		if ( parent->type() != RadioButtonController )
		    qWarning( "KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
			      "child of a controller" );
		else
		    d->exclusive = parent;
	    }
	}
	
	KviTalCheckListItem::KviTalCheckListItem( KviTalCheckListItem *parent, KviTalListViewItem *after,
	 				const TQString &text, Type tt )
	    : KviTalListViewItem( parent, after, text )
	{
	    myType = tt;
	    init();
	    if ( myType == RadioButton ) {
	 	if ( parent->type() != RadioButtonController )
	 	    qWarning( "KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
			      "child of a controller" );
	 	else
	 	    d->exclusive = parent;
	    }
	}
	
	KviTalCheckListItem::KviTalCheckListItem( KviTalListViewItem *parent, const TQString &text,
					Type tt )
	    : KviTalListViewItem( parent, text, TQString() )
	{
	    myType = tt;
	    if ( myType == RadioButton ) {
	      qWarning( "KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
		       "child of a KviTalCheckListItem" );
	    }
	    init();
	}
	
	KviTalCheckListItem::KviTalCheckListItem( KviTalListViewItem *parent, KviTalListViewItem *after,
	 				const TQString &text, Type tt )
	    : KviTalListViewItem( parent, after, text )
	{
	    myType = tt;
	    if ( myType == RadioButton ) {
	 	qWarning( "KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
	 		  "child of a KviTalCheckListItem" );
	    }
	    init();
	}
	
	KviTalCheckListItem::KviTalCheckListItem( KviTalListView *parent, const TQString &text,
					Type tt )
	    : KviTalListViewItem( parent, text )
	{
	    myType = tt;
	    if ( tt == RadioButton )
		qWarning( "KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
			 "child of a KviTalCheckListItem" );
	    init();
	}
	
	KviTalCheckListItem::KviTalCheckListItem( KviTalListView *parent, KviTalListViewItem *after,
	 				const TQString &text, Type tt )
	    : KviTalListViewItem( parent, after, text )
	{
	    myType = tt;
	    if ( tt == RadioButton )
	 	qWarning( "KviTalCheckListItem::KviTalCheckListItem(), radio button must be "
	 		  "child of a KviTalCheckListItem" );
	    init();
	}
	
	
	int KviTalCheckListItem::RTTI = 1;
	
	int KviTalCheckListItem::rtti() const
	{
	    return RTTI;
	}
	
	KviTalCheckListItem::KviTalCheckListItem( KviTalListView *parent, const TQString &text,
					const TQPixmap & p )
	    : KviTalListViewItem( parent, text )
	{
	    myType = RadioButtonController;
	    setPixmap( 0, p );
	    init();
	}
	
	KviTalCheckListItem::KviTalCheckListItem( KviTalListViewItem *parent, const TQString &text,
					const TQPixmap & p )
	    : KviTalListViewItem( parent, text )
	{
	    myType = RadioButtonController;
	    setPixmap( 0, p );
	    init();
	}
	
	void KviTalCheckListItem::init()
	{
	    d = new KviTalCheckListItemPrivate();
	    on = FALSE; // ### remove on ver 4
	    if ( myType == CheckBoxController || myType == CheckBox ) {
		d->statesDict = new KviPointerHashTable<void *,ToggleState>(101);
		d->statesDict->setAutoDelete( TRUE );
	    }
	    // CheckBoxControllers by default have tristate set to TRUE
	    if ( myType == CheckBoxController )
		setTristate( TRUE );
	}
	
	KviTalCheckListItem::~KviTalCheckListItem()
	{
	    if ( myType == RadioButton
		 && d->exclusive && d->exclusive->d
		 && d->exclusive->d->exclusive == this )
		d->exclusive->turnOffChild();
	    d->exclusive = 0; // so the tqchildren won't try to access us.
	    if ( d->statesDict )
		delete d->statesDict;
	    delete d;
	    d = 0;
	}
	
	void KviTalCheckListItem::setTristate( bool b )
	{
	    if ( ( myType != CheckBoxController ) && ( myType != CheckBox ) ) {
		qWarning( "KviTalCheckListItem::setTristate(), has no effect on RadioButton "
			  "or RadioButtonController." );
	    	return;
	    }
	    d->tristate = b;
	}
	
	bool KviTalCheckListItem::isTristate() const
	{
	    return d->tristate;
	}
	
	KviTalCheckListItem::ToggleState KviTalCheckListItem::state() const
	{
	    if ( !isTristate() && internalState() == NoChange )
		return Off;
	    else
		return d->currentState;
	}
	
	KviTalCheckListItem::ToggleState KviTalCheckListItem::internalState() const
	{
	    return d->currentState;
	}
	
	void KviTalCheckListItem::setState( ToggleState s )
	{
	    if ( myType == CheckBoxController && state() == NoChange )
		updateStoredState( (void*) this );
	    setState( s, TRUE, TRUE );
	}
	
	void KviTalCheckListItem::setState( ToggleState s, bool update, bool store)
	{
	
	    if ( s == internalState() )
		return;
	
	    if ( myType == CheckBox ) {
		setCurrentState( s );
		stateChange( state() );
	  	if ( update && parent() && parent()->rtti() == 1
	  	     && ((KviTalCheckListItem*)parent())->type() == CheckBoxController )
	  	    ((KviTalCheckListItem*)parent())->updateController( update, store );
	    } else if ( myType == CheckBoxController ) {
		if ( s == NoChange && childCount()) {
		    restoreState( (void*) this );
		} else {
		    KviTalListViewItem *item = firstChild();
		    int childCount = 0;
		    while( item ) {
			if ( item->rtti() == 1 &&
			     ( ((KviTalCheckListItem*)item)->type() == CheckBox ||
			       ((KviTalCheckListItem*)item)->type() == CheckBoxController ) ) {
			    KviTalCheckListItem *checkItem = (KviTalCheckListItem*)item;
			    checkItem->setState( s, FALSE, FALSE );
			    childCount++;
			}
			item = item->nextSibling();
		    }
		    if ( update ) {
			if ( childCount > 0 ) {
			    ToggleState oldState = internalState();
			    updateController( FALSE, FALSE );
			    if ( oldState != internalState() &&
				 parent() && parent()->rtti() == 1 &&
				 ((KviTalCheckListItem*)parent())->type() == CheckBoxController )
				((KviTalCheckListItem*)parent())->updateController( update, store );
	
				updateController( update, store );
			} else {
			    // if there are no tqchildren we simply set the CheckBoxController and update its parent
			    setCurrentState( s );
			    stateChange( state() );
			    if ( parent() && parent()->rtti() == 1
				 && ((KviTalCheckListItem*)parent())->type() == CheckBoxController )
				((KviTalCheckListItem*)parent())->updateController( update, store );
			}
		    } else {
			setCurrentState( s );
			stateChange( state() );
		    }
	
		}
	    } else if ( myType == RadioButton ) {
		if ( s == On ) {
		    if ( d->exclusive && d->exclusive->d->exclusive != this )
			d->exclusive->turnOffChild();
		    setCurrentState( s );
		    if ( d->exclusive )
			d->exclusive->d->exclusive = this;
		} else {
		    if ( d->exclusive && d->exclusive->d->exclusive == this )
			d->exclusive->d->exclusive = 0;
		    setCurrentState( Off );
		}
		stateChange( state() );
	    }
	    tqrepaint();
	}
	
	void KviTalCheckListItem::setCurrentState( ToggleState s )
	{
	    ToggleState old = d->currentState;
	    d->currentState = s;
	    if (d->currentState == On)
		on = TRUE;
	    else
		on = FALSE;
	
	#if defined(TQT_ACCESSIBILITY_SUPPORT)
	    if ( old != d->currentState && listView() )
		TQAccessible::updateAccessibility( listView()->viewport(), indexOfItem( this ), TQAccessible::StateChanged );
	#else
	    Q_UNUSED( old );
	#endif
	}
	
	void KviTalCheckListItem::setStoredState( ToggleState newState, void *key )
	{
	    if ( myType == CheckBox || myType == CheckBoxController )
		d->statesDict->replace( key, new ToggleState(newState) );
	}
	
	KviTalCheckListItem::ToggleState KviTalCheckListItem::storedState( void *key ) const
	{
	    if ( !d->statesDict )
		return Off;
	
	    ToggleState *foundState = d->statesDict->find( key );
	    if ( foundState )
		return ToggleState( *foundState );
	    else
		return Off;
	}
	
	void KviTalCheckListItem::turnOffChild()
	{
	    if ( myType == RadioButtonController && d->exclusive )
		d->exclusive->setOn( FALSE );
	}
	
	void KviTalCheckListItem::activate()
	{
	    KviTalListView * lv = listView();
	
	    if ( lv && !lv->isEnabled() || !isEnabled() )
		return;
	
	    TQPoint pos;
	    int boxsize = lv->tqstyle().pixelMetric(TQStyle::PM_CheckListButtonSize, lv);
	    if ( activatedPos( pos ) ) {
		bool parentControl = FALSE;
		if ( parent() && parent()->rtti() == 1  &&
		    ((KviTalCheckListItem*) parent())->type() == RadioButtonController )
		    parentControl = TRUE;
	
		int x = parentControl ? 0 : 3;
		int align = lv->columnAlignment( 0 );
		int marg = lv->itemMargin();
		int y = 0;
	
		if ( align & AlignVCenter )
		    y = ( ( height() - boxsize ) / 2 ) + marg;
		else
		    y = (lv->fontMetrics().height() + 2 + marg - boxsize) / 2;
	
		TQRect r( x, y, boxsize-3, boxsize-3 );
		// columns might have been swapped
		r.moveBy( lv->header()->sectionPos( 0 ), 0 );
		if ( !r.contains( pos ) )
		    return;
	    }
	    if ( ( myType == CheckBox ) || ( myType == CheckBoxController) )  {
		switch ( internalState() ) {
		case On:
		    setState( Off );
		    break;
		case Off:
		    if ( !isTristate() && myType == CheckBox ) {
			setState( On );
		    } else {
			setState( NoChange );
			if ( myType == CheckBoxController && internalState() != NoChange )
			    setState( On );
		    }
		    break;
		case NoChange:
		    setState( On );
		    break;
		}
		ignoreDoubleClick();
	    } else if ( myType == RadioButton ) {
		setOn( TRUE );
		ignoreDoubleClick();
	    }
	}
	
	void KviTalCheckListItem::setOn( bool b  )
	{
	    if ( b )
		setState( On , TRUE, TRUE );
	    else
		setState( Off , TRUE, TRUE );
	}
	
	void KviTalCheckListItem::stateChange( bool )
	{
	}
	
	void KviTalCheckListItem::stateChange( ToggleState s )
	{
	    stateChange( s == On );
	}
	
	void KviTalCheckListItem::restoreState( void *key, int depth )
	{
	    switch ( type() ) {
	    case CheckBox:
		setCurrentState( storedState( key ) );
		stateChange( state() );
		tqrepaint();
		break;
	    case CheckBoxController: {
		KviTalListViewItem *item = firstChild();
		int childCount = 0;
		while ( item ) {
		    // recursively calling restoreState for tqchildren of type CheckBox and CheckBoxController
		    if ( item->rtti() == 1 &&
			 ( ((KviTalCheckListItem*)item)->type() == CheckBox ||
			   ((KviTalCheckListItem*)item)->type() == CheckBoxController ) ) {
			((KviTalCheckListItem*)item)->restoreState( key , depth+1 );
			childCount++;
		    }
		    item = item->nextSibling();
		}
		if ( childCount > 0 ) {
		    if ( depth == 0 )
			updateController( TRUE );
		    else
			updateController( FALSE );
		} else {
		    // if there are no tqchildren we retrieve the CheckBoxController state directly.
		    setState( storedState( key ), TRUE, FALSE );
		}
	    }
		break;
	    default:
		break;
	    }
	}
	
	void KviTalCheckListItem::updateController( bool update , bool store )
	{
	    if ( myType != CheckBoxController )
		return;
	
	    KviTalCheckListItem *controller = 0;
	    // checks if this CheckBoxController has another CheckBoxController as parent
	    if ( parent() && parent()->rtti() == 1
		 && ((KviTalCheckListItem*)parent())->type() == CheckBoxController )
		controller = (KviTalCheckListItem*)parent();
	
	    ToggleState theState = Off;
	    bool first = TRUE;
	    KviTalListViewItem *item = firstChild();
	    while( item && theState != NoChange ) {
		if ( item->rtti() == 1 &&
		     ( ((KviTalCheckListItem*)item)->type() == CheckBox ||
		       ((KviTalCheckListItem*)item)->type() == CheckBoxController ) ) {
		    KviTalCheckListItem *checkItem = (KviTalCheckListItem*)item;
		    if ( first ) {
			theState = checkItem->internalState();
			first = FALSE;
		    } else {
			if ( checkItem->internalState() == NoChange ||
			     theState != checkItem->internalState() )
			    theState = NoChange;
			else
			    theState = checkItem->internalState();
		    }
		}
		item = item->nextSibling();
	    }
	    if ( internalState() != theState ) {
		setCurrentState( theState );
		if ( store && ( internalState() == On || internalState() == Off ) )
		    updateStoredState( (void*) this );
		stateChange( state() );
		if ( update && controller ) {
		    controller->updateController( update, store );
		}
		tqrepaint();
	    }
	}
	
	void KviTalCheckListItem::updateStoredState( void *key )
	{
	    if ( myType != CheckBoxController )
		return;
	
	    KviTalListViewItem *item = firstChild();
	    while( item ) {
		if ( item->rtti() == 1 ) {
		    KviTalCheckListItem *checkItem = (KviTalCheckListItem*)item;
		    if ( checkItem->type() == CheckBox )
			checkItem->setStoredState( checkItem->internalState(), key );
		    else if (checkItem->type() == CheckBoxController )
			checkItem->updateStoredState( key );
		}
		item = item->nextSibling();
	    }
	    // this state is only needed if the CheckBoxController has no CheckBox / CheckBoxController tqchildren.
	    setStoredState( internalState() , key );
	}
	
	void KviTalCheckListItem::setup()
	{
	    KviTalListViewItem::setup();
	    int h = height();
	    KviTalListView *lv = listView();
	    if ( lv )
		h = TQMAX( lv->tqstyle().pixelMetric(TQStyle::PM_CheckListButtonSize, lv),
			  h );
	    h = TQMAX( h, TQApplication::globalStrut().height() );
	    setHeight( h );
	}
	
	int KviTalCheckListItem::width( const TQFontMetrics& fm, const KviTalListView* lv, int column) const
	{
	    int r = KviTalListViewItem::width( fm, lv, column );
	    if ( column == 0 ) {
		r += lv->itemMargin();
		if ( myType == RadioButtonController && pixmap( 0 ) ) {
		    //	     r += 0;
		} else {
		    r +=  lv->tqstyle().pixelMetric(TQStyle::PM_CheckListButtonSize, lv) + 4;
		}
	    }
	    return TQMAX( r, TQApplication::globalStrut().width() );
	}
	
	void KviTalCheckListItem::paintCell( TQPainter * p, const TQColorGroup & cg,
				       int column, int width, int align )
	{
	    if ( !p )
		return;
	
	    KviTalListView *lv = listView();
	    if ( !lv )
		return;
	
	    const BackgroundMode bgmode = lv->viewport()->backgroundMode();
	    const TQColorGroup::ColorRole crole = TQPalette::backgroundRoleFromMode( bgmode );
	    if ( cg.brush( crole ) != lv->colorGroup().brush( crole ) )
		p->fillRect( 0, 0, width, height(), cg.brush( crole ) );
	    else
		lv->paintEmptyArea( p, TQRect( 0, 0, width, height() ) );
	
	    if ( column != 0 ) {
		// The rest is text, or for subclasses to change.
		KviTalListViewItem::paintCell( p, cg, column, width, align );
		return;
	    }
	
	    bool parentControl = FALSE;
	    if ( parent() && parent()->rtti() == 1  &&
		 ((KviTalCheckListItem*) parent())->type() == RadioButtonController )
		parentControl = TRUE;
	
	    TQFontMetrics fm( lv->fontMetrics() );
	    int boxsize = lv->tqstyle().pixelMetric( myType == RadioButtonController ? TQStyle::PM_CheckListControllerSize :
						   TQStyle::PM_CheckListButtonSize, lv);
	    int marg = lv->itemMargin();
	    int r = marg;
	
	    // Draw controller / checkbox / radiobutton ---------------------
	    int styleflags = TQStyle::Style_Default;
	    if ( internalState() == On ) {
		styleflags |= TQStyle::Style_On;
	    } else if ( internalState() == NoChange ) {
		if ( myType == CheckBoxController && !isTristate() )
		    styleflags |= TQStyle::Style_Off;
		else
		    styleflags |= TQStyle::Style_NoChange;
	    } else {
		styleflags |= TQStyle::Style_Off;
	    }
	    if ( isSelected() )
		styleflags |= TQStyle::Style_Selected;
	    if ( isEnabled() && lv->isEnabled() )
		styleflags |= TQStyle::Style_Enabled;
	
	    if ( myType == RadioButtonController ) {
		int x = 0;
		if(!parentControl)
		    x += 3;
		if ( !pixmap( 0 ) ) {
		    lv->tqstyle().tqdrawPrimitive(TQStyle::PE_CheckListController, p,
					  TQRect(x, 0, boxsize,
						fm.height() + 2 + marg),
					  cg, styleflags, TQStyleOption(this));
		    r += boxsize + 4;
		}
	    } else {
		Q_ASSERT( lv ); //###
		int x = 0;
		int y = 0;
		if ( !parentControl )
		    x += 3;
		if ( align & AlignVCenter )
		    y = ( ( height() - boxsize ) / 2 ) + marg;
		else
		    y = (fm.height() + 2 + marg - boxsize) / 2;
	
		if ( ( myType == CheckBox ) || ( myType == CheckBoxController ) ) {
		    lv->tqstyle().tqdrawPrimitive(TQStyle::PE_CheckListIndicator, p,
					      TQRect(x, y, boxsize,
						    fm.height() + 2 + marg),
					      cg, styleflags, TQStyleOption(this));
		} else { //radio button look
		    lv->tqstyle().tqdrawPrimitive(TQStyle::PE_CheckListExclusiveIndicator,
						      p, TQRect(x, y, boxsize,
							       fm.height() + 2 + marg),
						      cg, styleflags, TQStyleOption(this));
		}
		r += boxsize + 4;
	    }
	
	    // Draw text ----------------------------------------------------
	    p->translate( r, 0 );
	    p->setPen( TQPen( cg.text() ) );
	    KviTalListViewItem::paintCell( p, cg, column, width - r, align );
	}
	
	void KviTalCheckListItem::paintFocus( TQPainter *p, const TQColorGroup & cg,const TQRect & r )
	{
	    bool intersect = TRUE;
	    KviTalListView *lv = listView();
	    if ( lv && lv->header()->mapToActual( 0 ) != 0 ) {
		int xdepth = lv->treeStepSize() * ( depth() + ( lv->rootIsDecorated() ? 1 : 0) ) + lv->itemMargin();
		int p = lv->header()->cellPos( lv->header()->mapToActual( 0 ) );
		xdepth += p;
		intersect = r.intersects( TQRect( p, r.y(), xdepth - p + 1, r.height() ) );
	    }
	    bool parentControl = FALSE;
	    if ( parent() && parent()->rtti() == 1  &&
		 ((KviTalCheckListItem*) parent())->type() == RadioButtonController )
		parentControl = TRUE;
	    if ( myType != RadioButtonController && intersect &&
		 (lv->rootIsDecorated() || myType == RadioButton ||
		  (myType == CheckBox && parentControl) ) ) {
		TQRect rect;
		int boxsize = lv->tqstyle().pixelMetric(TQStyle::PM_CheckListButtonSize, lv);
		if ( lv->columnAlignment(0) == AlignCenter ) {
		    TQFontMetrics fm( lv->font() );
		    int bx = (lv->columnWidth(0) - (boxsize + fm.width(text())))/2 + boxsize;
		    if ( bx < 0 ) bx = 0;
		    rect.setRect( r.x() + bx + 5, r.y(), r.width() - bx - 5,
				  r.height() );
		} else
		    rect.setRect( r.x() + boxsize + 5, r.y(), r.width() - boxsize - 5,
				  r.height() );
		KviTalListViewItem::paintFocus(p, cg, rect);
	    } else {
		KviTalListViewItem::paintFocus(p, cg, r);
	    }
	}

	#include "kvi_tal_listview_qt3.moc"
#endif