editor.cpp

/* This file is part of the KDE project
   Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
   Copyright (C) 2004 Alexander Dymo <cloudtemple@mskat.net>
   Copyright (C) 2004-2006 Jaroslaw Staniek <js@iidea.pl>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   This library 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
#include "editor.h"
#include "editoritem.h"
#include "set.h"
#include "factory.h"
#include "property.h"
#include "widget.h"
 
#include <tqpushbutton.h>
#include <tqlayout.h>
#include <tqmap.h>
#include <tqguardedptr.h>
#include <tqheader.h>
#include <tqasciidict.h>
#include <tqtooltip.h>
#include <tqapplication.h>
#include <tqeventloop.h>
#include <tqtimer.h>
#include <tqlabel.h>
 
#include <kdebug.h>
#include <kiconloader.h>
#include <tdelocale.h>
#include <tdeapplication.h>
 
namespace KoProperty {

static bool kofficeAppDirAdded = false;

inline bool hasParent(TQObject* par, TQObject* o)
{
    if (!o || !par)
        return false;
    while (o && o != par)
        o = o->parent();
    return o == par;
}
 
class EditorPrivate
{
    public:
        EditorPrivate(Editor *editor)
        : itemDict(101, false), justClickedItem(false)
        {
            currentItem = 0;
            undoButton = 0;
            topItem = 0;
            itemToSelectLater = 0;
            if (!kofficeAppDirAdded) {
                kofficeAppDirAdded = true;
                TDEGlobal::iconLoader()->addAppDir("koffice");
            }
            previouslyCollapsedGroupItem = 0;
            childFormPreviouslyCollapsedGroupItem = 0;
            slotPropertyChanged_enabled = true;
            TQObject::connect(&changeSetLaterTimer, TQ_SIGNAL(timeout()),
                editor, TQ_SLOT(changeSetLater()));
        }
        ~EditorPrivate()
        {
        }
 
        TQGuardedPtr<Set> set;
        TQMap<Property*, Widget* >  widgetCache;
        TQGuardedPtr<Widget> currentWidget;
        EditorItem *currentItem;
        EditorItem *topItem; 
        TQPushButton *undoButton; 
        EditorItem::Dict itemDict;
 
        int baseRowHeight;
        bool sync : 1;
        bool insideSlotValueChanged : 1;

        TQTimer changeSetLaterTimer;
        bool setListLater_set : 1;
        bool preservePrevSelection_preservePrevSelection : 1;
        TQCString preservePrevSelection_propertyToSelect;
        //bool doNotSetFocusOnSelection : 1;
        bool justClickedItem : 1;
        bool slotPropertyChanged_enabled : 1;
        Set* setListLater_list;
        EditorItem *itemToSelectLater;
 
        TQListViewItem *previouslyCollapsedGroupItem;
        TQListViewItem *childFormPreviouslyCollapsedGroupItem;
};
}
 
using namespace KoProperty;
 
Editor::Editor(TQWidget *parent, bool autoSync, const char *name)
 : TDEListView(parent, name)
{
    d = new EditorPrivate(this);
    d->itemDict.setAutoDelete(false);
 
    d->set = 0;
    d->topItem = 0;
    d->currentItem = 0;
    d->sync = autoSync;
    d->insideSlotValueChanged = false;
    d->setListLater_set = false;
    d->preservePrevSelection_preservePrevSelection = false;
    d->setListLater_list = 0;
 
    d->undoButton = new TQPushButton(viewport());
    d->undoButton->setFocusPolicy(TQWidget::NoFocus);
    setFocusPolicy(TQWidget::ClickFocus);
    d->undoButton->setMinimumSize(TQSize(5,5)); // allow to resize undoButton even below pixmap size
    d->undoButton->setPixmap(SmallIcon("edit-undo"));
    TQToolTip::add(d->undoButton, i18n("Undo changes"));
    d->undoButton->hide();
    connect(d->undoButton, TQ_SIGNAL(clicked()), this, TQ_SLOT(undo()));
 
    installEventFilter(this);
    viewport()->installEventFilter(this);
 
    addColumn(i18n("Name"));
    addColumn(i18n("Value"));
    setAllColumnsShowFocus(true);
    setColumnWidthMode(0, TQListView::Maximum);
    setFullWidth(true);
    setShowSortIndicator(false);
    setShadeSortColumn(false);
    setTooltipColumn(0);
    setSorting(0);
    setItemMargin(KPROPEDITOR_ITEM_MARGIN);
    header()->setMovingEnabled( false );
    setTreeStepSize(16 + 2/*left*/ + 1/*right*/);
 
    updateFont();
//  d->baseRowHeight = TQFontMetrics(font()).height() + itemMargin()*2;
 
    connect(this, TQ_SIGNAL(selectionChanged(TQListViewItem *)), this, TQ_SLOT(slotClicked(TQListViewItem *)));
    connect(this, TQ_SIGNAL(currentChanged(TQListViewItem *)), this, TQ_SLOT(slotCurrentChanged(TQListViewItem *)));
    connect(this, TQ_SIGNAL(expanded(TQListViewItem *)), this, TQ_SLOT(slotExpanded(TQListViewItem *)));
    connect(this, TQ_SIGNAL(collapsed(TQListViewItem *)), this, TQ_SLOT(slotCollapsed(TQListViewItem *)));
    connect(header(), TQ_SIGNAL(sizeChange(int, int, int)), this, TQ_SLOT(slotColumnSizeChanged(int, int, int)));
//  connect(header(), TQ_SIGNAL(clicked(int)), this, TQ_SLOT(updateEditorGeometry()));
//  connect(header(), TQ_SIGNAL(clicked(int)), this, TQ_SLOT(updateEditorGeometryAndGroupLabels()));
    connect(header(), TQ_SIGNAL(sectionHandleDoubleClicked (int)), this, TQ_SLOT(slotColumnSizeChanged(int)));
    updateGroupLabelsPosition();
}
 
Editor::~Editor()
{
    clearWidgetCache();
    delete d;
    d = 0;
}
 
void
Editor::fill()
{
    setUpdatesEnabled(false);
    d->itemToSelectLater = 0;
    tqApp->eventLoop()->processEvents(TQEventLoop::AllEvents);
    hideEditor();
    TDEListView::clear();
    d->itemDict.clear();
    clearWidgetCache();
    if(!d->set) {
        d->topItem = 0;
        setUpdatesEnabled(true);
        triggerUpdate();
        return;
    }
 
    d->topItem = new EditorDummyItem(this);
 
    const TQValueList<TQCString> groupNames = d->set->groupNames();
//  kopropertydbg << "Editor::fill(): group names = " << groupNames.count() << endl;
    if(groupNames.count() == 1) { // one group (default one), so don't show groups
        //add flat set of properties
        const TQValueList<TQCString>& propertyNames = d->set->propertyNamesForGroup( groupNames.first() );
        TQValueListConstIterator<TQCString> it = propertyNames.constBegin();
        for( ; it != propertyNames.constEnd(); ++it)
            addItem(*it, d->topItem);
    }
    else { // create a groupItem for each group
        EditorGroupItem *prevGroupItem = 0;
        int sortOrder = 0;
        for (TQValueListConstIterator<TQCString> it = groupNames.constBegin(); it!=groupNames.constEnd(); 
            ++it, sortOrder++) 
        {
            const TQValueList<TQCString>& propertyNames = d->set->propertyNamesForGroup(*it);
            EditorGroupItem *groupItem;
            if (prevGroupItem)
                groupItem = new EditorGroupItem(d->topItem, prevGroupItem, 
                    d->set->groupDescription(*it), d->set->groupIcon(*it), sortOrder );
            else
                groupItem = new EditorGroupItem(d->topItem, 
                    d->set->groupDescription(*it), d->set->groupIcon(*it), sortOrder );
 
            TQValueList<TQCString>::ConstIterator it2 = propertyNames.constBegin();
            for( ; it2 != propertyNames.constEnd(); ++it2)
                addItem(*it2, groupItem);
 
            prevGroupItem = groupItem;
        }
    }
 
//  repaint();
 
    if (firstChild())
    {
        setCurrentItem(firstChild());
        setSelected(firstChild(), true);
        slotClicked(firstChild());
        updateGroupLabelsPosition();
    }
    setUpdatesEnabled(true);
    // aaah, call this instead of update()
    triggerUpdate();
}
 
void
Editor::addItem(const TQCString &name, EditorItem *parent)
{
    if(!d->set || !d->set->contains(name))
        return;
 
    Property *property = &(d->set->property(name));
    if(!property || !property->isVisible()) {
//      kopropertydbg << "Property is not visible: " << name << endl;
        return;
    }
    TQListViewItem *last = parent ? parent->firstChild() : d->topItem->firstChild();
    while(last && last->nextSibling())
        last = last->nextSibling();
 
    EditorItem *item=0;
    if(parent)
        item = new EditorItem(this, parent, property, last);
    else
        item = new EditorItem(this, d->topItem, property, last);
    d->itemDict.insert(name, item);
 
    // Create child items
    item->setOpen(true);
    if(!property->children())
        return;
 
    last = 0;
    TQValueList<Property*>::ConstIterator endIt = property->children()->constEnd();
    for(TQValueList<Property*>::ConstIterator it = property->children()->constBegin(); it != endIt; ++it) {
        if( *it && (*it)->isVisible() )
            last = new EditorItem(this, item, *it, last);
    }
}
 
void
Editor::changeSet(Set *set, bool preservePrevSelection)
{
    changeSetInternal(set, preservePrevSelection, "");
}
 
void
Editor::changeSet(Set *set, const TQCString& propertyToSelect)
{
    changeSetInternal(set, !propertyToSelect.isEmpty(), propertyToSelect);
}
 
void
Editor::changeSetInternal(Set *set, bool preservePrevSelection, const TQCString& propertyToSelect)
{
    if (d->insideSlotValueChanged) {
        //changeSet() called from inside of slotValueChanged()
        //this is dangerous, because there can be pending events,
        //especially for the GUI stuff, so let's do delayed work
        d->setListLater_list = set;
        d->preservePrevSelection_preservePrevSelection = preservePrevSelection;
        d->preservePrevSelection_propertyToSelect = propertyToSelect;
        tqApp->eventLoop()->processEvents(TQEventLoop::AllEvents);
        if (d->set) {
            //store prev. selection for this prop set
            if (d->currentItem)
                d->set->setPrevSelection( d->currentItem->property()->name() );
            kdDebug() << d->set->prevSelection() << endl;
        }
        if (!d->setListLater_set) {
            d->setListLater_set = true;
            d->changeSetLaterTimer.start(10, true);
        }
        return;
    }
 
    if (d->set) {
        slotWidgetAcceptInput(d->currentWidget);
        //store prev. selection for this prop set
        if (d->currentItem)
            d->set->setPrevSelection( d->currentItem->property()->name() );
        else
            d->set->setPrevSelection( "" );
        d->set->disconnect(this);
    }
 
    TQCString selectedPropertyName1 = propertyToSelect, selectedPropertyName2 = propertyToSelect;
    if (preservePrevSelection) {
        //try to find prev. selection:
        //1. in new list's prev. selection
        if(set)
            selectedPropertyName1 = set->prevSelection();
        //2. in prev. list's current selection
        if(d->set)
            selectedPropertyName2 = d->set->prevSelection();
    }
 
    d->set = set;
    if (d->set) {
        //receive property changes
        connect(d->set, TQ_SIGNAL(propertyChangedInternal(KoProperty::Set&, KoProperty::Property&)),
            this, TQ_SLOT(slotPropertyChanged(KoProperty::Set&, KoProperty::Property&)));
        connect(d->set, TQ_SIGNAL(propertyReset(KoProperty::Set&, KoProperty::Property&)),
            this, TQ_SLOT(slotPropertyReset(KoProperty::Set&, KoProperty::Property&)));
        connect(d->set,TQ_SIGNAL(aboutToBeCleared()), this, TQ_SLOT(slotSetWillBeCleared()));
        connect(d->set,TQ_SIGNAL(aboutToBeDeleted()), this, TQ_SLOT(slotSetWillBeDeleted()));
    }
 
    fill();
 
    emit propertySetChanged(d->set);
 
    if (d->set) {
        //select prev. selected item
        EditorItem * item = 0;
        if (!selectedPropertyName2.isEmpty()) //try other one for old prop set
            item = d->itemDict[selectedPropertyName2];
        if (!item && !selectedPropertyName1.isEmpty()) //try old one for current prop set
            item = d->itemDict[selectedPropertyName1];
 
        if (item) {
            d->itemToSelectLater = item;
            TQTimer::singleShot(10, this, TQ_SLOT(selectItemLater()));
            //d->doNotSetFocusOnSelection = !hasParent(this, focusWidget());
            //setSelected(item, true);
            //d->doNotSetFocusOnSelection = false;
//          ensureItemVisible(item);
        }
    }
}

void Editor::selectItemLater()
{
    if (!d->itemToSelectLater)
        return;
    EditorItem *item = d->itemToSelectLater;
    d->itemToSelectLater = 0;
    setSelected(item, true);
    ensureItemVisible(item);
}

void
Editor::changeSetLater()
{
    tqApp->eventLoop()->processEvents(TQEventLoop::AllEvents);
    if (kapp->hasPendingEvents()) {
        d->changeSetLaterTimer.start(10, true); //try again...
        return;
    }
    d->setListLater_set = false;
    if (!d->setListLater_list)
        return;
 
    bool b = d->insideSlotValueChanged;
    d->insideSlotValueChanged = false;
    changeSetInternal(d->setListLater_list, d->preservePrevSelection_preservePrevSelection, 
        d->preservePrevSelection_propertyToSelect);
    d->insideSlotValueChanged = b;
}
 
void
Editor::clear(bool editorOnly)
{
    d->itemToSelectLater = 0;
    hideEditor();
 
    if(!editorOnly) {
        tqApp->eventLoop()->processEvents(TQEventLoop::AllEvents);
        if(d->set)
            d->set->disconnect(this);
        clearWidgetCache(); 
        TDEListView::clear();
        d->itemDict.clear();
        d->topItem = 0;
    }
}
 
void
Editor::undo()
{
    if(!d->currentWidget || !d->currentItem || (d->set && d->set->isReadOnly()) || (d->currentWidget && d->currentWidget->isReadOnly()))
        return;
 
    int propertySync = d->currentWidget->property()->autoSync();
    bool sync = (propertySync != 0 && propertySync != 1) ?
                 d->sync : (propertySync!=0);
 
    if(sync)
        d->currentItem->property()->resetValue();
    if (d->currentWidget && d->currentItem) {//(check because current widget could be removed by resetValue())
        d->currentWidget->setValue( d->currentItem->property()->value());
        repaintItem(d->currentItem);
    }
}
 
void
Editor::slotPropertyChanged(Set& set, Property& property)
{
    if (!d->slotPropertyChanged_enabled)
        return;
    if(&set != d->set)
        return;
 
    if (d->currentItem && d->currentItem->property() == &property) {
        d->currentWidget->setValue(property.value(), false);
        for(TQListViewItem *item = d->currentItem->firstChild(); item; item = item->nextSibling())
            repaintItem(item);
    }
    else  {
        // prop not in the dict, might be a child property:
        EditorItem *item = d->itemDict[property.name()];
        if(!item && property.parent())
            item = d->itemDict[property.parent()->name()];
        if (item) {
            repaintItem(item);
            for(TQListViewItem *it = item->firstChild(); it; it = it->nextSibling())
                repaintItem(it);
        }
    }

#if 0
    if (property.parent() && property.parent()->type()==Rect) {
        const int delta = property.value().toInt()-previousValue.toInt();
        if (property.type()==Rect_X) { //|| property.type()==Rect_Y)
            property.parent()->child("width")->setValue(delta, false);
        }
 
/*  if (widget->property() && (TQWidget*)d->currentWidget==widget && d->currentItem->parent()) {
        EditorItem *parentItem = static_cast<EditorItem*>(d->currentItem->parent());
        const int thisType = ;
            && parentItem->property()->type()==Rect) {
            //changing x or y components of Rect type shouldn't change width or height, respectively
            if (thisType==Rect_X) {
                EditorItem *rectWidthItem = static_cast<EditorItem*>(d->currentItem->nextSibling()->nextSibling());
                if (delta!=0) {
                    rectWidthItem->property()->setValue(rectWidthItem->property()->value().toInt()+delta, false);
                }
            }
        }*/
    }
#endif
    showUndoButton( property.isModified() );
}
 
void
Editor::slotPropertyReset(Set& set, Property& property)
{
    if(&set != d->set)
        return;
 
    if (d->currentItem && d->currentItem->property() == &property) {
        d->currentWidget->setValue(property.value(), false);
        for(TQListViewItem *item = d->currentItem->firstChild(); item; item = item->nextSibling())
            repaintItem(item);
    }
    else  {
        EditorItem *item = d->itemDict[property.name()];
        // prop not in the dict, might be a child prop.
        if(!item && property.parent())
            item = d->itemDict[property.parent()->name()];
        if (item) {
            repaintItem(item);
            for(TQListViewItem *it = item->firstChild(); it; it = it->nextSibling())
                repaintItem(it);
        }
    }
 
    showUndoButton( false );
}
 
void
Editor::slotWidgetValueChanged(Widget *widget)
{
    if(!widget || !d->set || (d->set && d->set->isReadOnly()) || (widget && widget->isReadOnly()) || !widget->property())
        return;
 
    d->insideSlotValueChanged = true;
 
    TQVariant value = widget->value();
    int propertySync = widget->property()->autoSync();
    bool sync = (propertySync != 0 && propertySync != 1) ?
                 d->sync : (propertySync!=0);
 
    if(sync) {
        d->slotPropertyChanged_enabled = false;
        TQGuardedPtr<Widget> pWidget = widget; //safe, widget can be destroyed in the meantime
        widget->property()->setValue(value);
        if (pWidget)
          showUndoButton( pWidget->property()->isModified() );
        d->slotPropertyChanged_enabled = true;
    }
 
    d->insideSlotValueChanged = false;
}
 
void
Editor::acceptInput()
{
    slotWidgetAcceptInput(d->currentWidget);
}
 
void
Editor::slotWidgetAcceptInput(Widget *widget)
{
    if(!widget || !d->set || !widget->property() || (d->set && d->set->isReadOnly()) || (widget && widget->isReadOnly()))
        return;
 
    widget->property()->setValue(widget->value());
}
 
void
Editor::slotWidgetRejectInput(Widget *widget)
{
    if(!widget || !d->set)
        return;
 
    undo();
}
 
void
Editor::slotClicked(TQListViewItem *it)
{
    d->previouslyCollapsedGroupItem = 0;
    d->childFormPreviouslyCollapsedGroupItem = 0;
 
    acceptInput();
 
    hideEditor();
    if(!it)
        return;
 
    EditorItem *item = static_cast<EditorItem*>(it);
    Property *p = item ? item->property() : 0;
    if(!p)
        return;
 
    d->currentItem = item;
    d->currentWidget = createWidgetForProperty(p);
 
    //moved up updateEditorGeometry();
    showUndoButton( p->isModified() );
    if (d->currentWidget) {
        if (d->currentWidget->visibleFlag()) {
            d->currentWidget->show();
            if (hasParent( this, kapp->focusWidget() ))
                d->currentWidget->setFocus();
        }
    }
 
    d->justClickedItem = true;
}
 
void
Editor::slotCurrentChanged(TQListViewItem *item)
{
    if (item == firstChild()) {
        TQListViewItem *oldItem = item;
        while (item && (!item->isSelectable() || !item->isVisible()))
            item = item->itemBelow();
        if (item && item != oldItem) {
            setSelected(item,true);
            return;
        }
    }
}
 
void
Editor::slotSetWillBeCleared()
{
    d->itemToSelectLater = 0;
    if (d->currentWidget) {
        acceptInput();
        d->currentWidget->setProperty(0);
    }
    clear();
}
 
void
Editor::slotSetWillBeDeleted()
{
    clear();
    d->set = 0;
}
 
Widget*
Editor::createWidgetForProperty(Property *property, bool changeWidgetProperty)
{
//  int type = property->type();
    TQGuardedPtr<Widget> widget = d->widgetCache[property];
 
    if(!widget) {
        widget = FactoryManager::self()->createWidgetForProperty(property);
        if (!widget)
            return 0;
        widget->setReadOnly( (d->set && d->set->isReadOnly()) || property->isReadOnly() );
        d->widgetCache[property] = widget;
        widget->setProperty(0); // to force reloading property later
        widget->hide();
        connect(widget, TQ_SIGNAL(valueChanged(Widget*)),
            this, TQ_SLOT(slotWidgetValueChanged(Widget*)) );
        connect(widget, TQ_SIGNAL(acceptInput(Widget*)),
            this, TQ_SLOT(slotWidgetAcceptInput(Widget*)) );
        connect(widget, TQ_SIGNAL(rejectInput(Widget*)),
            this, TQ_SLOT(slotWidgetRejectInput(Widget*)) );
    }
 
    //update geometry earlier, because Widget::setValue() can depend on widget's geometry
    updateEditorGeometry(d->currentItem, widget);
 
    if(widget && (!widget->property() || changeWidgetProperty))
        widget->setProperty(property);
 
//  if (!d->doNotSetFocusOnSelection) {
//      widget->setFocus();
//  }
 
    return widget;
}
 
 
void
Editor::clearWidgetCache()
{
    for(TQMap<Property*, Widget*>::iterator it = d->widgetCache.begin(); it != d->widgetCache.end(); ++it)
        it.data()->deleteLater();
//      delete it.data();
    d->widgetCache.clear();
}
 
void
Editor::updateEditorGeometry(bool forceUndoButtonSettings, bool undoButtonVisible)
{
    updateEditorGeometry(d->currentItem, d->currentWidget,
        forceUndoButtonSettings, undoButtonVisible);
}
 
void
Editor::updateEditorGeometry(EditorItem *item, Widget* widget,
  bool forceUndoButtonSettings, bool undoButtonVisible)
{
    if(!item || !widget)
        return;
 
    int placeForUndoButton;
    if (forceUndoButtonSettings ? undoButtonVisible : d->undoButton->isVisible())
        placeForUndoButton = d->undoButton->width();
    else
        placeForUndoButton = widget->leavesTheSpaceForRevertButton() ? d->undoButton->width() : 0;
 
    TQRect r;
    int y = itemPos(item);
    r.setX(header()->sectionPos(1)-(widget->hasBorders()?1:0)); //-1, to align to horizontal line
    r.setY(y-(widget->hasBorders()?1:0));
    r.setWidth(header()->sectionSize(1)+(widget->hasBorders()?1:0) //+1 because we subtracted 1 from X
        - placeForUndoButton);
    r.setHeight(item->height()+(widget->hasBorders()?1:-1));
 
    // check if the column is fully visible
    if (visibleWidth() < r.right())
        r.setRight(visibleWidth());
 
    moveChild(widget, r.x(), r.y());
    widget->resize(r.size());
    tqApp->eventLoop()->processEvents(TQEventLoop::AllEvents);
}
 
void
Editor::updateGroupLabelsPosition()
{
    if(!d->topItem || d->itemDict.isEmpty())
        return;
 
    EditorGroupItem *group = dynamic_cast<EditorGroupItem*>(d->topItem->firstChild());
    while(group) {
        TQRect r = itemRect((TQListViewItem*) group);
        if(group->label()) {
            group->label()->setGeometry(r);
            group->label()->repaint();
        }
        group = dynamic_cast<EditorGroupItem*>(group->nextSibling());
    }
}
 
void
Editor::hideEditor()
{
    d->currentItem = 0;
    TQWidget *cw = d->currentWidget;
    if(cw) {
        d->currentWidget = 0;
        cw->hide();
    }
    d->undoButton->hide();
}
 
void
Editor::showUndoButton( bool show )
{
    if (!d->currentItem || !d->currentWidget || (d->currentWidget && d->currentWidget->isReadOnly()))
        return;
 
    int y = viewportToContents(TQPoint(0, itemRect(d->currentItem).y())).y();
    TQRect geometry(columnWidth(0), y, columnWidth(1) + 1, d->currentItem->height());
    d->undoButton->resize(d->baseRowHeight, d->currentItem->height());
 
    updateEditorGeometry(true, show);
 
    if (!show) {
/*    if (d->currentWidget) {
            if (d->currentWidget->leavesTheSpaceForRevertButton()) {
                geometry.setWidth(geometry.width()-d->undoButton->width());
            }
            d->currentWidget->resize(geometry.width(), geometry.height());
        }*/
        d->undoButton->hide();
        return;
    }
 
    TQPoint p = contentsToViewport(TQPoint(0, geometry.y()));
    d->undoButton->move(geometry.x() + geometry.width()
        -((d->currentWidget && d->currentWidget->hasBorders())?1:0)/*editor is moved by 1 to left*/
        - d->undoButton->width(), p.y());
//  if (d->currentWidget) {
//    d->currentWidget->move(d->currentWidget->x(), p.y());
//    d->currentWidget->resize(geometry.width()-d->undoButton->width(), geometry.height());
//  }
    d->undoButton->show();
}
 
void
Editor::slotExpanded(TQListViewItem *item)
{
    if (!item)
        return;
 
    //select child item again if a group item has been expanded
    if (!selectedItem() && dynamic_cast<EditorGroupItem*>(item) && d->previouslyCollapsedGroupItem == item
        && d->childFormPreviouslyCollapsedGroupItem) {
            setSelected(d->childFormPreviouslyCollapsedGroupItem, true);
            setCurrentItem(selectedItem());
            slotClicked(selectedItem());
    }
    updateEditorGeometry();
    updateGroupLabelsPosition();
    repaintContents();
    repaint();
}
 
void
Editor::slotCollapsed(TQListViewItem *item)
{
    if (!item)
        return;
    //unselect child item and hide editor if a group item has been collapsed
    if (dynamic_cast<EditorGroupItem*>(item)) {
        for (TQListViewItem *i = selectedItem(); i; i = i->parent()) {
            if (i->parent()==item) {
                d->previouslyCollapsedGroupItem = item;
                d->childFormPreviouslyCollapsedGroupItem = selectedItem();
                hideEditor();
                setSelected(selectedItem(), false);
                setSelected(item->nextSibling(), true);
                break;
            }
        }
    }
    updateEditorGeometry();
    updateGroupLabelsPosition();
    repaintContents();
    repaint();
}
 
void
Editor::slotColumnSizeChanged(int section, int oldSize, int newSize)
{
    Q_UNUSED(section);
    Q_UNUSED(oldSize);
    Q_UNUSED(newSize);
    /*for (TQListViewItemIterator it(this); it.current(); ++it) {
        if (section == 0 && dynamic_cast<EditorGroupItem*>(it.current())) {
            it.current()->repaint();
    }
    }*/
/*
    if(d->currentWidget) {
        if(section == 0)
            d->currentWidget->move(newS, d->currentWidget->y());
        else  {
            if(d->undoButton->isVisible())
                d->currentWidget->resize(newS - d->undoButton->width(), d->currentWidget->height());
            else
                d->currentWidget->resize(
                    newS-(d->currentWidget->leavesTheSpaceForRevertButton() ? d->undoButton->width() : 0),
                    d->currentWidget->height());
        }
    }*/
//  repaintContents();
//  repaint();
    updateEditorGeometry();
    update();
}
 
void
Editor::slotColumnSizeChanged(int section)
{
    setColumnWidth(1, viewport()->width() - columnWidth(0));
    slotColumnSizeChanged(section, 0, header()->sectionSize(section));
 
/*  if(d->currentWidget) {
        if(d->undoButton->isVisible())
            d->currentWidget->resize(columnWidth(1) - d->undoButton->width(), d->currentWidget->height());
        else
            d->currentWidget->resize(
                columnWidth(1)-(d->currentWidget->leavesTheSpaceForRevertButton() ? d->undoButton->width() : 0),
                d->currentWidget->height());
    }*/
    if(d->undoButton->isVisible())
        showUndoButton(true);
    else
        updateEditorGeometry();
}
 
TQSize
Editor::sizeHint() const
{
    return TQSize( TQFontMetrics(font()).width(columnText(0)+columnText(1)+"   "),
        TDEListView::sizeHint().height());
}
 
void
Editor::setFocus()
{
    EditorItem *item = static_cast<EditorItem *>(selectedItem());
    if (item) {
        if (!d->justClickedItem)
            ensureItemVisible(item);
        d->justClickedItem = false;
    }
    else {
        //select an item before focusing
        item = static_cast<EditorItem *>(itemAt(TQPoint(10,1)));
        if (item) {
            ensureItemVisible(item);
            setSelected(item, true);
        }
    }
    if (d->currentWidget) {
//      kopropertydbg << "d->currentWidget->setFocus()" << endl;
        d->currentWidget->setFocus();
    }
    else {
//      kopropertydbg << "TDEListView::setFocus()" << endl;
        TDEListView::setFocus();
    }
}
 
void
Editor::resizeEvent(TQResizeEvent *ev)
{
    TDEListView::resizeEvent(ev);
    if(d->undoButton->isVisible())
        showUndoButton(true);
    update();
    updateGroupLabelsPosition();
}
 
bool
Editor::eventFilter( TQObject * watched, TQEvent * e )
{
    if ((watched==this || watched==viewport()) && e->type()==TQEvent::KeyPress) {
        if (handleKeyPress(static_cast<TQKeyEvent*>(e)))
            return true;
    }
    return TDEListView::eventFilter(watched, e);
}
 
bool
Editor::handleKeyPress(TQKeyEvent* ev)
{
    const int k = ev->key();
    const TQt::ButtonState s = ev->state();
 
    //selection moving
    TQListViewItem *item = 0;
 
    if ( ((s == TQt::NoButton) && (k == Key_Up)) || (k==Key_BackTab) ) {
        //find prev visible
        item = selectedItem() ? selectedItem()->itemAbove() : 0;
        while (item && (!item->isSelectable() || !item->isVisible()))
            item = item->itemAbove();
        if (!item)
            return true;
    }
    else if( (s == TQt::NoButton) && ((k == Key_Down) || (k == Key_Tab)) ) {
        //find next visible
        item = selectedItem() ? selectedItem()->itemBelow() : 0;
        while (item && (!item->isSelectable() || !item->isVisible()))
            item = item->itemBelow();
        if (!item)
            return true;
    }
    else if( (s==TQt::NoButton) && (k==Key_Home) ) {
        if (d->currentWidget && d->currentWidget->hasFocus())
            return false;
        //find 1st visible
        item = firstChild();
        while (item && (!item->isSelectable() || !item->isVisible()))
            item = item->itemBelow();
    }
    else if( (s==TQt::NoButton) && (k==Key_End) ) {
        if (d->currentWidget && d->currentWidget->hasFocus())
            return false;
        //find last visible
        item = selectedItem();
        TQListViewItem *lastVisible = item;
        while (item) { // && (!item->isSelectable() || !item->isVisible()))
            item = item->itemBelow();
            if (item && item->isSelectable() && item->isVisible())
                lastVisible = item;
        }
        item = lastVisible;
    }
 
    if(item) {
        ev->accept();
        ensureItemVisible(item);
        setSelected(item, true);
        return true;
    }
    return false;
}
 
void
Editor::updateFont()
{
    setFont(parentWidget()->font());
    d->baseRowHeight = TQFontMetrics(parentWidget()->font()).height() + itemMargin() * 2;
    if (!d->currentItem)
        d->undoButton->resize(d->baseRowHeight, d->baseRowHeight);
    else {
        showUndoButton(d->undoButton->isVisible());
        updateEditorGeometry();
    }
    updateGroupLabelsPosition();
}
 
bool
Editor::event( TQEvent * e )
{
    if (e->type()==TQEvent::ParentFontChange) {
        updateFont();
    }
    return TDEListView::event(e);
}
 
void
Editor::contentsMousePressEvent( TQMouseEvent * e )
{
    TQListViewItem *item = itemAt(e->pos());
    if (dynamic_cast<EditorGroupItem*>(item)) {
        setOpen( item, !isOpen(item) );
        return;
    }
    TDEListView::contentsMousePressEvent(e);
}
 
void
Editor::setSorting( int column, bool ascending )
{
    if (d->set && d->set->groupNames().count()>1) //do not sort when groups are present (maybe reenable this later?)
        return;
    TDEListView::setSorting( column, ascending );
    updateEditorGeometry();
    updateGroupLabelsPosition();
    repaintContents();
    repaint();
}
 
#include "editor.moc"