Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 365 insertions, 0 deletions

diff --git a/kdeprint/kmvirtualmanager.cpp b/kdeprint/kmvirtualmanager.cpp
new file mode 100644
index 000000000..51a50292a
--- /dev/null
+++ b/kdeprint/kmvirtualmanager.cpp
@@ -0,0 +1,365 @@
+/*
+ *  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();
+}