kmlistview.cpp

/*
 *  This file is part of the KDE libraries
 *  Copyright (c) 2001 Michael Goffioul <tdeprint@swing.be>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License version 2 as published by the Free Software Foundation.
 *
 *  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 "kmlistview.h"
#include "kmprinter.h"
#include "kmobject.h"
 
#include <tqheader.h>
#include <tqpainter.h>
#include <tdelocale.h>
#include <kiconloader.h>
#include <kcursor.h>
 
class KMListViewItem : public TQListViewItem, public KMObject
{
public:
    KMListViewItem(TQListView *parent, const TQString& txt);
    KMListViewItem(TQListViewItem *parent, const TQString& txt);
    KMListViewItem(TQListViewItem *parent, KMPrinter *p);
 
    virtual void paintCell(TQPainter*, const TQColorGroup&, int, int, int);
    void updatePrinter(KMPrinter *p);
    bool isClass() const    { return m_isclass; }
 
protected:
    void init(KMPrinter *p = 0);
 
private:
    int m_state;
    bool    m_isclass;
};
 
KMListViewItem::KMListViewItem(TQListView *parent, const TQString& txt)
: TQListViewItem(parent,txt)
{
    init();
}
 
KMListViewItem::KMListViewItem(TQListViewItem *parent, const TQString& txt)
: TQListViewItem(parent,txt)
{
    init();
}
 
KMListViewItem::KMListViewItem(TQListViewItem *parent, KMPrinter *p)
: TQListViewItem(parent)
{
    init(p);
}
 
void KMListViewItem::init(KMPrinter *p)
{
    m_state = 0;
    if (p)
        updatePrinter(p);
    setSelectable(depth() == 2);
}
 
void KMListViewItem::updatePrinter(KMPrinter *p)
{
    bool    update(false);
    if (p)
    {
        int oldstate = m_state;
        int st(p->isValid() ? (int)TDEIcon::DefaultState : (int)TDEIcon::LockOverlay);
        m_state = ((p->isHardDefault() ? 0x1 : 0x0) | (p->ownSoftDefault() ? 0x2 : 0x0) | (p->isValid() ? 0x4 : 0x0));
        update = (oldstate != m_state);
        TQString    name = (p->isVirtual() ? p->instanceName() : p->name());
        if (name != text(0))
            setText(0, name);
        setPixmap(0, SmallIcon(p->pixmap(), 0, st));
        m_isclass = p->isClass();
    }
    setDiscarded(false);
    if (update)
        repaint();
}
 
void KMListViewItem::paintCell(TQPainter *p, const TQColorGroup& cg, int c, int w, int a)
{
    if (m_state != 0)
    {
        TQFont  f(p->font());
        if (m_state & 0x1) f.setBold(true);
        if (m_state & 0x2) f.setItalic(true);
        p->setFont(f);
    }
    TQListViewItem::paintCell(p,cg,c,w,a);
}
 
//************************************************************************************************
 
KMListView::KMListView(TQWidget *parent, const char *name)
: TQListView(parent,name)
{
    m_items.setAutoDelete(false);
 
    addColumn("");
    header()->hide();
    setFrameStyle(TQFrame::WinPanel|TQFrame::Sunken);
    setLineWidth(1);
    setSorting(0);
 
    connect(this,TQ_SIGNAL(contextMenuRequested(TQListViewItem*,const TQPoint&,int)),TQ_SLOT(slotRightButtonClicked(TQListViewItem*,const TQPoint&,int)));
    connect(this,TQ_SIGNAL(selectionChanged()),TQ_SLOT(slotSelectionChanged()));
    connect(this,TQ_SIGNAL(onItem(TQListViewItem*)),TQ_SLOT(slotOnItem(TQListViewItem*)));
    connect(this,TQ_SIGNAL(onViewport()),TQ_SLOT(slotOnViewport()));
 
    m_root = new KMListViewItem(this,i18n("Print System"));
    m_root->setPixmap(0,SmallIcon("tdeprint_printer"));
    m_root->setOpen(true);
    m_classes = new KMListViewItem(m_root,i18n("Classes"));
    m_classes->setPixmap(0,SmallIcon("package"));
    m_classes->setOpen(true);
    m_printers = new KMListViewItem(m_root,i18n("Printers"));
    m_printers->setPixmap(0,SmallIcon("package"));
    m_printers->setOpen(true);
    m_specials = new KMListViewItem(m_root,i18n("Specials"));
    m_specials->setPixmap(0,SmallIcon("package"));
    m_specials->setOpen(true);
 
    sort();
}
 
KMListView::~KMListView()
{
}
 
void KMListView::slotRightButtonClicked(TQListViewItem *item, const TQPoint& p, int)
{
    emit rightButtonClicked(item && item->depth() == 2 ? item->text(0) : TQString::null, p);
}
 
KMListViewItem* KMListView::findItem(KMPrinter *p)
{
    if (p)
    {
        TQPtrListIterator<KMListViewItem>   it(m_items);
        bool    isVirtual(p->isVirtual()), isClass(p->isClass());
        for (;it.current();++it)
            if (isVirtual)
            {
                if (it.current()->depth() == 3 && it.current()->text(0) == p->instanceName()
                        && it.current()->parent()->text(0) == p->printerName())
                    return it.current();
            }
            else
            {
                if (it.current()->isClass() == isClass && it.current()->text(0) == p->name())
                    return it.current();
            }
    }
    return 0;
}
 
KMListViewItem* KMListView::findItem(const TQString& prname)
{
    TQPtrListIterator<KMListViewItem>   it(m_items);
    for (; it.current(); ++it)
        if (it.current()->depth() == 2 && it.current()->text(0) == prname)
            return it.current();
    return 0;
}
 
void KMListView::setPrinterList(TQPtrList<KMPrinter> *list)
{
    bool    changed(false);
 
    TQPtrListIterator<KMListViewItem>   it(m_items);
    for (;it.current();++it)
        it.current()->setDiscarded(true);
 
    if (list)
    {
        TQPtrListIterator<KMPrinter>    it(*list);
        KMListViewItem          *item (0);
        for (;it.current();++it)
        {
            item = findItem(it.current());
            if (!item)
            {
                if (it.current()->isVirtual())
                {
                    KMListViewItem  *pItem = findItem(it.current()->printerName());
                    if (!pItem)
                        continue;
                    item = new KMListViewItem(pItem, it.current());
                    pItem->setOpen(true);
                }
                else
                    item = new KMListViewItem((it.current()->isSpecial() ? m_specials : (it.current()->isClass(false) ? m_classes : m_printers)),it.current());
                m_items.append(item);
                changed = true;
            }
            else
                item->updatePrinter(it.current());
        }
    }
 
    TQPtrList<KMListViewItem>   deleteList;
    deleteList.setAutoDelete(true);
    for (uint i=0; i<m_items.count(); i++)
        if (m_items.at(i)->isDiscarded())
        {
            // instance items are put in front of the list
            // so that they are destroyed first
            KMListViewItem  *item = m_items.take(i);
            if (item->depth() == 2)
                deleteList.append(item);
            else
                deleteList.prepend(item);
            i--;
            changed = true;
        }
    deleteList.clear();
 
    if (changed) sort();
    emit selectionChanged();
}
 
void KMListView::slotSelectionChanged()
{
    KMListViewItem  *item = static_cast<KMListViewItem*>(currentItem());
    emit printerSelected((item && !item->isDiscarded() && item->depth() == 2 ? item->text(0) : TQString::null));
}
 
void KMListView::setPrinter(const TQString& prname)
{
    TQPtrListIterator<KMListViewItem>   it(m_items);
    for (;it.current();++it)
        if (it.current()->text(0) == prname)
        {
            setSelected(it.current(),true);
            break;
        }
}
 
void KMListView::setPrinter(KMPrinter *p)
{
    setPrinter(p ? p->name() : TQString::null);
}
 
void KMListView::slotOnItem(TQListViewItem *)
{
    setCursor(KCursor::handCursor());
}
 
void KMListView::slotOnViewport()
{
    setCursor(KCursor::arrowCursor());
}
#include "kmlistview.moc"