kmmanager.cpp
/*
* 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 "kmmanager.h"
#include "kmprinter.h"
#include "kmdbentry.h"
#include "kmfactory.h"
#include "kmvirtualmanager.h"
#include "kmspecialmanager.h"
#include "printerfilter.h"
#include "kprinter.h"
#include <zlib.h>
#include <qfile.h>
#include <kstandarddirs.h>
#include <kconfig.h>
#include <klocale.h>
#include <kdebug.h>
#include <kapplication.h>
#include <klibloader.h>
#include <unistd.h>
KMManager::KMManager(QObject *parent, const char *name)
: QObject(parent,name)
{
m_printers.setAutoDelete(true);
m_fprinters.setAutoDelete(false);
m_hasmanagement = false;
m_printeroperationmask = 0;
m_serveroperationmask = 0;
m_printerfilter = new PrinterFilter(this);
m_specialmgr = new KMSpecialManager(this);
Q_CHECK_PTR(m_specialmgr);
m_virtualmgr = new KMVirtualManager(this);
Q_CHECK_PTR(m_virtualmgr);
// set default to true to not disturb code that
// hasn't been adapted yet. Otherwise, should be false
m_updatepossible = true;
}
KMManager::~KMManager()
{
}
KMManager* KMManager::self()
{
return KMFactory::self()->manager();
}
bool KMManager::notImplemented()
{
setErrorMsg(i18n("This operation is not implemented."));
return false;
}
bool KMManager::modifyPrinter(KMPrinter *oldp, KMPrinter *newp)
{
if (oldp->printerName() != newp->printerName())
{
// remove the old one, then create the new one. But before removing
// the old one, retrieve its driver so that the new printer has the
// same.
DrMain *driver = loadPrinterDriver(oldp, true);
newp->setDriver(driver);
if (!removePrinter(oldp))
return false;
}
return createPrinter(newp);
}
bool KMManager::createPrinter(KMPrinter*)
{
return notImplemented();
}
bool KMManager::removePrinter(KMPrinter*)
{
return notImplemented();
}
bool KMManager::removePrinter(const QString& name)
{
KMPrinter *p = findPrinter(name);
return (p ? removePrinter(p) : false);
}
bool KMManager::enablePrinter(KMPrinter*, bool)
{
return notImplemented();
}
bool KMManager::enablePrinter(const QString& name, bool state)
{
KMPrinter *p = findPrinter(name);
return (p ? enablePrinter(p, state) : false);
}
bool KMManager::startPrinter(KMPrinter*, bool)
{
return notImplemented();
}
bool KMManager::startPrinter(const QString& name, bool state)
{
KMPrinter *p = findPrinter(name);
return (p ? startPrinter(p, state) : false);
}
bool KMManager::upPrinter(KMPrinter *p, bool state)
{
bool result = enablePrinter(p, state);
if (result)
result = startPrinter(p, state);
return result;
}
bool KMManager::completePrinter(KMPrinter*)
{
notImplemented();
return true; // not false to allow instance config/creation
}
bool KMManager::completePrinterShort(KMPrinter *p)
{
return completePrinter(p);
}
bool KMManager::completePrinter(const QString& name)
{
KMPrinter *p = findPrinter(name);
return (p ? completePrinter(p) : false);
}
bool KMManager::setDefaultPrinter(KMPrinter*)
{
return notImplemented();
}
bool KMManager::setDefaultPrinter(const QString& name)
{
KMPrinter *p = findPrinter(name);
return (p ? setDefaultPrinter(p) : false);
}
bool KMManager::testPrinter(KMPrinter *prt)
{
// standard Test mechanism
QString testpage = testPage();
if (testpage.isEmpty())
{
setErrorMsg(i18n("Unable to locate test page."));
return false;
}
KPrinter pr;
bool prExist = (findPrinter(prt->printerName()) != 0), result(false);
pr.setPrinterName(prt->printerName());
pr.setSearchName(prt->name());
pr.setDocName("KDE Print Test");
// the printing mechanism may involve some needed operations on the
// printer, so temporary printers (created when testing) should be
// temporarily added to the printer list, then taken out.
if (!prExist)
m_printers.append(prt);
result = pr.printFiles(testpage, false, false);
if (!prExist)
m_printers.take(m_printers.count()-1);
return result;
// return notImplemented();
}
KMPrinter* KMManager::findPrinter(const QString& name)
{
QPtrListIterator<KMPrinter> it(m_printers);
for (;it.current();++it)
if (it.current()->name() == name) return it.current();
//setErrorMsg(i18n("%1: printer not found.").arg(name));
return 0;
}
KMPrinter* KMManager::softDefault() const
{
QPtrListIterator<KMPrinter> it(m_printers);
for (;it.current();++it)
if (it.current()->isSoftDefault()) return it.current();
return 0;
}
KMPrinter* KMManager::hardDefault() const
{
QPtrListIterator<KMPrinter> it(m_printers);
for (; it.current();++it)
if (it.current()->isHardDefault())
return it.current();
return 0;
}
KMPrinter* KMManager::defaultPrinter()
{
printerList(false);
KMPrinter *prt = softDefault();
if (!prt)
prt = hardDefault();
return prt;
}
QPtrList<KMPrinter>* KMManager::printerList(bool reload)
{
setErrorMsg(QString::null);
//kdDebug(500) << "Getting printer list: " << reload << endl;
if (reload || m_printers.count() == 0)
{
// reset filter
m_printerfilter->update();
m_fprinters.clear();
// first discard all printers
discardAllPrinters(true);
// make sure virtual printers will be reloaded if we don't have
// any printer (for example if settings are wrong)
if (m_printers.count() == 0)
m_virtualmgr->reset();
// List real printers (in subclasses)
if ( m_updatepossible )
listPrinters();
// Listing of special printers has to be done before the instances
// because now special printers can also have instances
m_specialmgr->refresh();
// list virtual printers (and undiscard virtual printers if necessary)
if ( m_updatepossible )
m_virtualmgr->refresh();
// remove discarded printers
for (uint i=0; i<m_printers.count(); i++)
{
KMPrinter *prt = m_printers.at(i);
if (prt->isDiscarded())
{
m_printers.remove(i);
i--;
}
else if (prt->isSpecial() || m_printerfilter->filter(prt))
m_fprinters.append(prt);
}
// try to find the default printer from these situations:
// - it already exists from .lpoptions file
// - use the PRINTER variable
if (!softDefault())
{
KMPrinter *defprinter = findPrinter(QString::fromLatin1(getenv("PRINTER")));
if (defprinter)
setSoftDefault(defprinter);
}
}
return &m_fprinters;
}
QPtrList<KMPrinter>* KMManager::printerListComplete(bool reload)
{
printerList(reload);
return &m_printers;
}
void KMManager::listPrinters()
{
// do nothing
}
void KMManager::addPrinter(KMPrinter *p)
{
if (p)
{
if (p->name().isEmpty())
// discard printer with empty name
delete p;
else
{
KMPrinter *other = findPrinter(p->name());
if (other)
{
other->copy(*p);
delete p;
}
else
{
p->setDiscarded(false);
m_printers.inSort(p);
}
}
}
}
QString KMManager::driverDbCreationProgram()
{
return QString::null;
}
QString KMManager::driverDirectory()
{
return QString::null;
}
DrMain* KMManager::loadPrinterDriver(KMPrinter*, bool)
{
return NULL;
}
DrMain* KMManager::loadDbDriver(KMDBEntry *entry)
{
return loadFileDriver(entry->file);
}
DrMain* KMManager::loadFileDriver(const QString&)
{
return NULL;
}
DrMain* KMManager::loadDriver(KMPrinter *p, bool config)
{
if (p->isSpecial())
return m_specialmgr->loadDriver(p);
else
return loadPrinterDriver(p, config);
}
bool KMManager::savePrinterDriver(KMPrinter*,DrMain*)
{
return notImplemented();
}
bool KMManager::uncompressFile(const QString& filename, QString& destname)
{
QFile f(filename);
bool result(true);
destname = QString::null;
if (f.exists() && f.open(IO_ReadOnly))
{
char buf[1024] = {0};
f.readBlock(buf,2);
if ((uchar)(buf[0]) == 037 && (uchar)(buf[1]) == 0213)
{
f.close();
destname = locateLocal("tmp","kdeprint_") + KApplication::randomString(8);
f.setName(destname);
if (f.open(IO_WriteOnly))
{
gzFile in = gzopen(filename.latin1(),"r");
int n(0);
while ((n=gzread(in,buf,1024)) > 0)
if (f.writeBlock(buf,n) != n)
break;
if (n != 0) result = false;
gzclose(in);
f.close();
}
}
}
return result;
}
void KMManager::setHardDefault(KMPrinter *p)
{
QPtrListIterator<KMPrinter> it(m_printers);
for (;it.current();++it)
it.current()->setHardDefault(false);
if (p) p->setHardDefault(true);
}
void KMManager::setSoftDefault(KMPrinter *p)
{
QPtrListIterator<KMPrinter> it(m_printers);
for (;it.current();++it)
{
it.current()->setSoftDefault(false);
it.current()->setOwnSoftDefault(false);
}
if (p)
{
p->setSoftDefault(true);
KMPrinter *pp = findPrinter(p->printerName());
if (pp)
pp->setOwnSoftDefault(true);
}
}
bool KMManager::restartServer()
{
return notImplemented();
}
bool KMManager::configureServer(QWidget*)
{
return notImplemented();
}
QString KMManager::testPage()
{
KConfig *conf = KMFactory::self()->printConfig();
conf->setGroup("General");
QString tpage = conf->readPathEntry("TestPage");
if (tpage.isEmpty())
tpage = locate("data","kdeprint/testprint.ps");
return tpage;
}
void KMManager::discardAllPrinters(bool on)
{
QPtrListIterator<KMPrinter> it(m_printers);
for (;it.current();++it)
if (!on || !it.current()->isSpecial())
it.current()->setDiscarded(on);
}
bool KMManager::validateDbDriver(KMDBEntry*)
{
return true;
}
bool KMManager::createSpecialPrinter(KMPrinter *p)
{
if (p && p->isSpecial())
{
KMPrinter *old = findPrinter(p->name());
if (old && !old->isSpecial())
{
setErrorMsg(i18n("Can't overwrite regular printer with special printer settings."));
return false;
}
// if the special printer already exists, it will be overwritten
addPrinter(p);
return m_specialmgr->savePrinters();
}
return false;
}
bool KMManager::removeSpecialPrinter(KMPrinter *p)
{
if (p && p->isSpecial() && m_printers.findRef(p) != -1)
{
m_printers.removeRef(p);
return m_specialmgr->savePrinters();
}
return false;
}
/* format of output:
Class0, URI0, Desc0, Printer0, Class1, URI1, Desc1, Printer1, ...
Defaults to 3 parallel printers
*/
QStringList KMManager::detectLocalPrinters()
{
QStringList list;
for (int i=0; i<3; i++)
list << QString::null << QString::fromLatin1("parallel:/dev/lp%1").arg(i) << i18n("Parallel Port #%1").arg(i+1) << QString::null;
return list;
}
int KMManager::addPrinterWizard(QWidget *parent)
{
KLibrary *lib = KLibLoader::self()->library("libkdeprint_management_module");
if (!lib)
setErrorMsg(i18n("Unable to load KDE print management library: %1").arg(KLibLoader::self()->lastErrorMessage()));
else
{
int (*func)(QWidget*) = (int(*)(QWidget*))lib->symbol("add_printer_wizard");
if (!func)
setErrorMsg(i18n("Unable to find wizard object in management library."));
else
return func(parent);
}
return (-1);
}
bool KMManager::invokeOptionsDialog(QWidget *parent)
{
KLibrary *lib = KLibLoader::self()->library("libkdeprint_management_module");
if (!lib)
setErrorMsg(i18n("Unable to load KDE print management library: %1").arg(KLibLoader::self()->lastErrorMessage()));
else
{
bool (*func)(QWidget*) = (bool(*)(QWidget*))lib->symbol("config_dialog");
if (!func)
setErrorMsg(i18n("Unable to find options dialog in management library."));
else
return func(parent);
}
return false;
}
void KMManager::createPluginActions(KActionCollection*)
{
}
void KMManager::validatePluginActions(KActionCollection*, KMPrinter*)
{
}
void KMManager::enableFilter(bool on)
{
m_printerfilter->setEnabled(on);
}
bool KMManager::isFilterEnabled() const
{
return m_printerfilter->isEnabled();
}
QString KMManager::stateInformation()
{
return i18n("No plugin information available");
}
void KMManager::checkUpdatePossible()
{
m_updatepossible = false;
checkUpdatePossibleInternal();
}
void KMManager::checkUpdatePossibleInternal()
{
setUpdatePossible( true );
}
void KMManager::setUpdatePossible( bool value )
{
if ( value != m_updatepossible )
m_virtualmgr->reset();
m_updatepossible = value;
emit updatePossible( m_updatepossible );
}
#include "kmmanager.moc"
KPrinter::setSearchName
void setSearchName(const QString &n)
Sets the search name of the KPrinter object.
Definition: kprinter.cpp:903
KPrinter::setDocName
void setDocName(const QString &)
See QPrinter::setDocName().
Definition: kprinter.cpp:794
KPrinter
This class is the main interface to access the KDE print framework.
Definition: kprinter.h:88
KPrinter::printFiles
bool printFiles(const QStringList &files, bool removeafter=false, bool startviewer=true)
Prints the files given in argument.
Definition: kprinter.cpp:358
KPrinter::setPrinterName
void setPrinterName(const QString &)
See QPrinter::setPrinterName().
Definition: kprinter.cpp:867

KDE Home | KDE Accessibility Home | Description of Access Keys