kmwrlpr.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 "kmwrlpr.h"
#include "kmprinter.h"
#include "kmwizard.h"
 
#include <tqdir.h>
#include <tqfile.h>
#include <tqtextstream.h>
#include <tqlayout.h>
#include <tqlabel.h>
#include <tqlineedit.h>
#include <tqheader.h>
#include <tdelistview.h>
#include <tdelocale.h>
#include <kiconloader.h>
 
static TQListViewItem* rlpr_findChild(TQListViewItem *c, const TQString& txt)
{
    TQListViewItem  *item(c);
    while (item)
        if (item->text(0) == txt) return item;
        else item = item->nextSibling();
    return NULL;
}
 
//*****************************************************************************************************
 
KMWRlpr::KMWRlpr(TQWidget *parent, const char *name)
: KMWizardPage(parent,name)
{
    m_ID = KMWizard::Custom+1;
    m_title = i18n("Remote LPD Queue Settings");
    m_nextpage = KMWizard::Name;
 
    m_view = new TDEListView(this);
    m_view->setFrameStyle(TQFrame::WinPanel|TQFrame::Sunken);
    m_view->setLineWidth(1);
    m_view->addColumn(TQString::fromLatin1(""));
    m_view->header()->hide();
    m_view->setRootIsDecorated(true);
    m_view->setSorting(0);
    m_host = new TQLineEdit(this);
    m_queue = new TQLineEdit(this);
    TQLabel *m_hostlabel = new TQLabel(i18n("Host:"), this);
    TQLabel *m_queuelabel = new TQLabel(i18n("Queue:"), this);
    m_hostlabel->setBuddy(m_host);
    m_queuelabel->setBuddy(m_queue);
    connect(m_view,TQ_SIGNAL(selectionChanged(TQListViewItem*)),TQ_SLOT(slotPrinterSelected(TQListViewItem*)));
 
    TQHBoxLayout    *lay0 = new TQHBoxLayout(this, 0, 10);
    TQVBoxLayout    *lay1 = new TQVBoxLayout(0, 0, 5);
    lay0->addWidget(m_view,1);
    lay0->addLayout(lay1,1);
    lay1->addWidget(m_hostlabel);
    lay1->addWidget(m_host);
    lay1->addSpacing(20);
    lay1->addWidget(m_queuelabel);
    lay1->addWidget(m_queue);
    lay1->addStretch(1);
 
    initialize();
}
 
bool KMWRlpr::isValid(TQString& msg)
{
    if (m_host->text().isEmpty())
        msg = i18n("Empty host name.");
    else if (m_queue->text().isEmpty())
        msg = i18n("Empty queue name.");
    else
        return true;
    return false;
}
 
void KMWRlpr::initPrinter(KMPrinter *p)
{
    m_host->setText(p->option("host"));
    m_queue->setText(p->option("queue"));
    TQListViewItem  *item = rlpr_findChild(m_view->firstChild(),m_host->text());
    if (item)
    {
        item = rlpr_findChild(item->firstChild(),m_queue->text());
        if (item)
        {
            item->parent()->setOpen(true);
            m_view->setCurrentItem(item);
            m_view->ensureItemVisible(item);
        }
    }
}
 
void KMWRlpr::updatePrinter(KMPrinter *p)
{
    TQString    uri = TQString::fromLatin1("lpd://%1/%2").arg(m_host->text()).arg(m_queue->text());
    p->setDevice(uri);
    p->setOption("host",m_host->text());
    p->setOption("queue",m_queue->text());
    p->setOption("kde-backend-description",i18n("Remote LPD queue"));
    // setting default name and description, but only if the "name()" is empty
    // which is the case on first pass when adding a printer. This prevents from
    // bad side-effects when simply modifying an existing printer.
    if (p->name().isEmpty())
    {
        p->setName(m_queue->text());
        p->setPrinterName(p->name());
        p->setDescription(i18n("Remote queue %1 on %2").arg(m_queue->text()).arg(m_host->text()));
    }
}
 
void KMWRlpr::initialize()
{
    m_view->clear();
    TQFile  f(TQDir::homeDirPath()+"/.rlprrc");
    if (!f.exists()) f.setName("/etc/rlprrc");
    if (f.exists() && f.open(IO_ReadOnly))
    {
        TQTextStream    t(&f);
        TQString        line, host;
        int         p(-1);
        while (!t.eof())
        {
            line = t.readLine().stripWhiteSpace();
            if (line.isEmpty())
                continue;
            if ((p=line.find(':')) != -1)
            {
                host = line.left(p).stripWhiteSpace();
                TQListViewItem  *hitem = new TQListViewItem(m_view,host);
                hitem->setPixmap(0,SmallIcon("tdeprint_computer"));
                TQStringList    prs = TQStringList::split(' ',line.right(line.length()-p-1),false);
                for (TQStringList::ConstIterator it=prs.begin(); it!=prs.end(); ++it)
                {
                    TQListViewItem  *pitem = new TQListViewItem(hitem,*it);
                    pitem->setPixmap(0,SmallIcon("tdeprint_printer"));
                }
            }
        }
        f.close();
    }
 
    // parse printcap file for local printers
    f.setName("/etc/printcap");
    if (f.exists() && f.open(IO_ReadOnly))
    {
        TQTextStream    t(&f);
        TQString        line, buffer;
        TQListViewItem  *hitem(m_view->firstChild());
        while (hitem) if (hitem->text(0) == "localhost") break; else hitem = hitem->nextSibling();
        while (!t.eof())
        {
            buffer = TQString::null;
            while (!t.eof())
            {
                line = t.readLine().stripWhiteSpace();
                if (line.isEmpty() || line[0] == '#')
                    continue;
                buffer.append(line);
                if (buffer.right(1) == "\\")
                    buffer = buffer.left(buffer.length()-1).stripWhiteSpace();
                else
                    break;
            }
            if (buffer.isEmpty())
                continue;
            int p = buffer.find(':');
            if (p != -1)
            {
                TQString    name = buffer.left(p);
                if (!hitem)
                {
                    hitem = new TQListViewItem(m_view,"localhost");
                    hitem->setPixmap(0,SmallIcon("tdeprint_computer"));
                }
                TQListViewItem  *pitem = new TQListViewItem(hitem,name);
                pitem->setPixmap(0,SmallIcon("tdeprint_printer"));
            }
        }
    }
 
    if (m_view->childCount() == 0)
        new TQListViewItem(m_view,i18n("No Predefined Printers"));
}
 
void KMWRlpr::slotPrinterSelected(TQListViewItem *item)
{
    if (item && item->depth() == 1)
    {
        m_host->setText(item->parent()->text(0));
        m_queue->setText(item->text(0));
    }
}
#include "kmwrlpr.moc"