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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /kghostview/kgvconfigdialog.cpp
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
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/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kghostview/kgvconfigdialog.cpp')
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diff --git a/kghostview/kgvconfigdialog.cpp b/kghostview/kgvconfigdialog.cpp
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+/**
+ * Copyright (C) 2000-2002 the KGhostView authors. See file AUTHORS.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+
+// Add header files alphabetically
+
+#include <qlayout.h>
+
+#include <kconfig.h>
+#include <kdebug.h>
+#include <kglobal.h>
+#include <kiconloader.h>
+#include <kinstance.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+#include <kprocess.h>
+#include <kstandarddirs.h>
+#include <kconfigdialog.h>
+
+#include "configuration.h"
+#include "kgv_view.h"
+#include "kgvfactory.h"
+
+#include "generalsettingswidget.h"
+#include "gssettingswidget.h"
+
+#include "kgvconfigdialog.h"
+
+
+namespace {
+ QString getGSVersion( QString fullPathToExec )
+ {
+ QString res;
+ QString chkVersion = KProcess::quote(fullPathToExec) + " --version";
+ FILE* p = popen( QFile::encodeName(chkVersion), "r" );
+ if( p ) {
+ // FIXME: a badly configured interpreter can hang us
+ QFile qp;
+ qp.open( IO_ReadOnly, p );
+ qp.readLine( res, 80 );
+ qp.close();
+ pclose( p );
+ res = res.stripWhiteSpace();
+ }
+ kdDebug(4500) << "kgvconfigdialog.cpp::{unamed}::getGSVersion() returning " << res << endl;
+ return res;
+ }
+
+
+ /* A mechanism for triggering redetection of gs versions:
+ *
+ * The idea is that whenever we find we need to workaround a certain version of gs,
+ * we cannot rely that there will solelly be a new kghostviewrc, but that users will
+ * upgrade kghostview. Therefore, whenever we want to trigger redection on a new version,
+ * we increment the counter below. It should have the old value from the previous version
+ * of kghostview and this function will get called.
+ *
+ */
+
+ /* On a related note:
+ * We don't detect upgrades (or downgrades, for that matter) of gs.
+ * I am seeing if I can get the version out of gs as a side effect to displaying a file.
+ * This way, using kconfig:/Ghostscript/GS Version we will see whether the version has changed
+ * and trigger a redetection without the trouble of running "gs --version" on each launch.
+ *
+ * LPC (9 April 2003)
+ */
+ /* currentRedetection value log:
+ *
+ * 1- remove -dMaxBitmap for gs 6.5x
+ * 2- see if it supports .setsafe ( see bug:57291 ).
+ */
+ const int currentRedetection = 2;
+
+
+ /* Here are the issues we found so far in version of gs:
+ *
+ * - gs before 6.50 uses device x11alpha instead of x11
+ * - gs 6.5x does not work well with -dMaxBitmap=...
+ * - gs 6.52 and earlier as well as 7.0x for x < 4 don't support the .setsafe operator
+ *
+ */
+
+ QString recommendSetSafe( QString version )
+ {
+ if ( version < QString::number( 6.53 ) ) return QString::number( 6.53 );
+ if ( version[ 0 ] == '7' && version < QString::number( 7.04 ) ) return QString::number( 7.05 );
+ return QString::null;
+ }
+ // This function should contain all the gs version specific workarounds.
+ void redoGSDetection()
+ {
+ kdDebug(4500) << "kgvconfigdialog.cpp::{unnamed}::redoGSDetection()" << endl;
+ QString version = getGSVersion( Configuration::interpreter() );
+ QString recommended = recommendSetSafe( version );
+ if ( !recommended.isNull() ) {
+ KMessageBox::sorry( 0,
+ i18n( "Your version of gs (version %1) is too old, since it has security issues "
+ "which are impossible to resolve. Please upgrade to a newer version.\n"
+ "KGhostView will try to work with it, but it may not display any files at all.\n"
+ "Version %2 seems to be appropriate on your system, although newer versions will work as well." )
+ .arg( version )
+ .arg( recommended ) );
+ }
+ if ( version < QString::number( 7.00 ) )
+ {
+ QStringList arguments = QStringList::split( ' ', Configuration::antialiasingArguments() );
+ arguments.remove( QString::fromLatin1( "-dMaxBitmap=10000000" ) );
+ QString antiAliasArgs = arguments.join( " " );
+
+ Configuration::setAntialiasingArguments( antiAliasArgs );
+ }
+
+ Configuration::setRedetectionCounter( currentRedetection );
+ Configuration::setVersion( version );
+ }
+} // namespace
+
+void ConfigDialog::showSettings( KGVPart* main ) {
+ const char* name = "kghostview-settings";
+ if ( KConfigDialog::showDialog( name ) ) return;
+
+ if ( Configuration::redetectionCounter() < currentRedetection ) redoGSDetection();
+
+ KConfigDialog* dialog = new KConfigDialog( 0, name,
+ Configuration::self(), KDialogBase::IconList );
+ dialog->addPage( new GeneralSettingsWidget( 0, "general-settings" ),
+ i18n( "General" ), QString::fromLatin1( "kghostview" ) );
+ GSSettingsWidget *gssw = new GSSettingsWidget( 0, "gs-settings" );
+ dialog->addPage( gssw, i18n( "Ghostscript\nConfiguration" ), QString::fromLatin1( "pdf" ) );
+
+ gssw->setDetectedVersion(Configuration::version());
+
+ QObject::connect( dialog, SIGNAL( settingsChanged() ), main, SLOT( slotConfigurationChanged() ) );
+ dialog->show();
+}
+
+
+// vim:sw=4:sts=4:ts=8:noet