You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
tdelibs/kdeprint/kmvirtualmanager.cpp

366 lines
11 KiB

/*
* This file is part of the KDE libraries
* Copyright (c) 2001 Michael Goffioul <kdeprint@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 "kmvirtualmanager.h"
#include "kmprinter.h"
#include "kmfactory.h"
#include "kmmanager.h"
#include "kprinter.h"
#include <stdlib.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qdir.h>
#include <qfileinfo.h>
#include <klocale.h>
#include <kstandarddirs.h>
#include <kurl.h>
#include <kdebug.h>
#include <kmessagebox.h>
#include <unistd.h>
static QString instanceName(const QString& prname, const QString& instname)
{
QString str(prname);
if (!instname.isEmpty())
str.append("/"+instname);
return str;
}
KMVirtualManager::KMVirtualManager(KMManager *parent, const char *name)
: QObject(parent,name), m_manager(parent)
{
}
KMVirtualManager::~KMVirtualManager()
{
}
KMPrinter* KMVirtualManager::findPrinter(const QString& name)
{
return m_manager->findPrinter(name);
}
KMPrinter* KMVirtualManager::findInstance(KMPrinter *p, const QString& name)
{
QString instname(instanceName(p->printerName(),name));
return findPrinter(instname);
}
void KMVirtualManager::addPrinter(KMPrinter *p)
{
if (p && p->isValid())
{
KMPrinter *other = findPrinter(p->name());
if (other)
{
other->copy(*p);
// Replace default options with the new loaded ones: this is needed
// if we want to handle 2 lpoptions correctly (system-wide and local).
// Anyway, the virtual printers will be reloaded only if something has
// changed in one of the files, so it's better to reset everything, to
// be sure to use the new changes. Edited options will be left unchanged.
other->setDefaultOptions(p->defaultOptions());
delete p;
}
else
m_manager->addPrinter(p);
}
else
delete p;
}
void KMVirtualManager::setDefault(KMPrinter *p, bool saveflag)
{
m_manager->setSoftDefault(p);
m_defaultprinter = (p ? p->printerName() : QString::null);
if (saveflag) triggerSave();
}
bool KMVirtualManager::isDefault(KMPrinter *p, const QString& name)
{
QString instname(instanceName(p->printerName(),name));
KMPrinter *printer = findPrinter(instname);
if (printer)
return printer->isSoftDefault();
else
return false;
}
void KMVirtualManager::create(KMPrinter *p, const QString& name)
{
QString instname = instanceName(p->printerName(),name);
if (findPrinter(instname) != NULL) return;
KMPrinter *printer = new KMPrinter;
printer->setName(instname);
printer->setPrinterName(p->printerName());
printer->setInstanceName(name);
if (!name.isEmpty())
printer->setType(p->type()|KMPrinter::Virtual);
// we need some options to know how to load the driver
if (p->isSpecial())
printer->setOptions(p->options());
m_manager->addPrinter(printer);
triggerSave();
}
void KMVirtualManager::copy(KMPrinter *p, const QString& src, const QString& name)
{
QString instsrc(instanceName(p->printerName(),src)), instname(instanceName(p->printerName(),name));
KMPrinter *prsrc = findPrinter(instsrc);
if (!prsrc || findPrinter(instname) != NULL) return;
KMPrinter *printer = new KMPrinter;
printer->copy(*prsrc);
printer->setName(instname);
printer->setInstanceName(name);
printer->setDefaultOptions(prsrc->defaultOptions());
m_manager->addPrinter(printer);
triggerSave();
}
void KMVirtualManager::remove(KMPrinter *p, const QString& name)
{
QString instname = instanceName(p->printerName(),name);
KMPrinter *printer = findPrinter(instname);
if (!printer) return;
if (name.isEmpty())
{ // remove default instance => only remove options, keep the KMPrinter object
printer->setDefaultOptions(QMap<QString,QString>());
printer->setEditedOptions(QMap<QString,QString>());
printer->setEdited(false);
}
else
m_manager->m_printers.removeRef(printer);
triggerSave();
}
void KMVirtualManager::setAsDefault(KMPrinter *p, const QString& name, QWidget *parent)
{
QString instname(instanceName(p->printerName(),name));
if ( p->isSpecial() )
{
if ( KMessageBox::warningContinueCancel( parent,
i18n( "<qt>You are about to set a pseudo-printer as your personal default. "
"This setting is specific to KDE and will not be available outside KDE "
"applications. Note that this will only make your personal default printer "
"as undefined for non-KDE applications and should not prevent you from "
"printing normally. Do you really want to set <b>%1</b> as your personal default?</qt>" ).arg( instname ),
QString::null, i18n("Set as Default"), "setSpecialAsDefault" ) == KMessageBox::No )
return;
}
KMPrinter *printer = findPrinter(instname);
if (!printer)
{ // create it if necessary
create(p,name);
printer = findPrinter(instname);
}
if (printer)
setDefault(printer,true);
}
void KMVirtualManager::refresh()
{
QFileInfo fi(QDir::homeDirPath() + QFile::decodeName("/.lpoptions"));
QFileInfo fi2(QFile::decodeName("/etc/cups/lpoptions"));
// if root, then only use global file: trick -> use twice the same file
if (getuid() == 0)
fi.setFile(fi2.absFilePath());
if (!m_checktime.isValid() || m_checktime < QMAX(fi.lastModified(),fi2.lastModified()))
{
m_defaultprinter = QString::null;
if (fi2.exists())
loadFile(fi2.absFilePath());
if (fi.exists() && fi.absFilePath() != fi2.absFilePath())
loadFile(fi.absFilePath());
m_checktime = QMAX(fi.lastModified(),fi2.lastModified());
}
else
{ // parse printers looking for instances -> undiscarded them, real printers
// are undiscarded by the manager itself. Also update printer status.
QPtrListIterator<KMPrinter> it(m_manager->m_printers);
for (;it.current();++it)
if (!it.current()->instanceName().isEmpty())
{
checkPrinter(it.current());
if (it.current()->isValid()) it.current()->setDiscarded(false);
}
}
}
void KMVirtualManager::checkPrinter(KMPrinter *p)
{
KMPrinter *realprinter = m_manager->findPrinter(p->printerName());
if (!realprinter || realprinter->isDiscarded())
{
p->setType(KMPrinter::Invalid);
p->setState(KMPrinter::Unknown);
}
else
{
if (!p->instanceName().isEmpty())
p->setType(realprinter->type()|KMPrinter::Virtual);
p->setState(realprinter->state());
}
}
QString KMVirtualManager::defaultPrinterName()
{
return m_defaultprinter;
}
void KMVirtualManager::virtualList(QPtrList<KMPrinter>& list, const QString& prname)
{
// load printers if necessary
refresh();
// then look for instances
list.setAutoDelete(false);
list.clear();
kdDebug(500) << "KMVirtualManager::virtualList() prname=" << prname << endl;
QPtrListIterator<KMPrinter> it(m_manager->m_printers);
for (;it.current();++it)
if (it.current()->printerName() == prname)
list.append(it.current());
}
void KMVirtualManager::loadFile(const QString& filename)
{
QFile f(filename);
if (f.exists() && f.open(IO_ReadOnly))
{
QTextStream t(&f);
QString line;
QStringList words;
QStringList pair;
KMPrinter *printer, *realprinter;
while (!t.eof())
{
line = t.readLine().stripWhiteSpace();
if (line.isEmpty()) continue;
words = QStringList::split(' ',line,false);
if (words.count() < 2) continue;
pair = QStringList::split('/',words[1],false);
realprinter = m_manager->findPrinter(KURL::decode_string(pair[0]));
if (realprinter && !realprinter->isDiscarded())
{ // keep only instances corresponding to an existing and
// non discarded printer.
// "clone" the real printer and modify settings as needed
printer = new KMPrinter(*realprinter);
printer->setName(KURL::decode_string(words[1]));
printer->setPrinterName(KURL::decode_string(pair[0]));
if (pair.count() > 1)
{
printer->setInstanceName(KURL::decode_string(pair[1]));
printer->addType(KMPrinter::Virtual);
}
// parse options
for (uint i=2; i<words.count(); i++)
{
pair = QStringList::split('=',words[i],false);
printer->setDefaultOption(pair[0],(pair.count() > 1 ? pair[1] : QString::null));
}
// add printer to the manager
addPrinter(printer); // don't use "printer" after this point !!!
// check default state
if (words[0].lower().startsWith("default"))
setDefault(findPrinter(KURL::decode_string(words[1])),false);
}
}
}
}
void KMVirtualManager::triggerSave()
{
QString filename;
if (getuid() == 0)
{
if (KStandardDirs::makeDir(QFile::decodeName("/etc/cups")))
filename = QFile::decodeName("/etc/cups/lpoptions");
}
else
filename = QDir::homeDirPath() + QFile::decodeName("/.lpoptions");
if (!filename.isEmpty())
{
saveFile(filename);
m_checktime = QFileInfo(filename).lastModified();
}
}
void KMVirtualManager::saveFile(const QString& filename)
{
QFile f(filename);
if (f.open(IO_WriteOnly))
{
QTextStream t(&f);
QPtrListIterator<KMPrinter> it(m_manager->m_printers);
for (;it.current();++it)
{
if (it.current()->isSpecial())
{
t << ( it.current()->isSoftDefault() ? "DefaultSpecial " : "Special " );
t << KURL::encode_string_no_slash( it.current()->printerName() );
if ( !it.current()->instanceName().isEmpty() )
t << "/" << KURL::encode_string_no_slash( it.current()->instanceName() );
}
else
t << (it.current()->isSoftDefault() ? "Default " : "Dest ") << it.current()->name();
QMap<QString,QString> opts = it.current()->defaultOptions();
for (QMap<QString,QString>::ConstIterator oit=opts.begin(); oit!=opts.end(); ++oit)
{
t << ' ' << oit.key();
if (!oit.data().isEmpty())
t << '=' << oit.data();
}
t << endl;
}
}
}
bool KMVirtualManager::testInstance(KMPrinter *p)
{
QString testpage = KMManager::self()->testPage();
if (testpage.isEmpty())
return false;
else
{
KPrinter pr;
pr.setPrinterName(p->printerName());
pr.setSearchName(p->name());
pr.setOptions(p->defaultOptions());
return (pr.printFiles(testpage));
}
}
void KMVirtualManager::reload()
{
reset();
}
void KMVirtualManager::configChanged()
{
reset();
}