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kdiff3/kdiff3plugin/kdiff3plugin.cpp

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/* This file is part of the KDiff3 project
Copyright (C) 2006 Joachim Eibl <joachim dot eibl at gmx dot de>
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; version 2
of the License.
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "kdiff3plugin.h"
#include <kapplication.h>
#include <kstandarddirs.h>
#include <kaction.h>
#include <klocale.h>
#include <kgenericfactory.h>
#include <kurl.h>
#include <ksimpleconfig.h>
#include <kmessagebox.h>
//#include <iostream>
static TQStringList* s_pHistory=0;
class KDiff3PluginFactory : public KGenericFactory < KDiff3Plugin, KonqPopupMenu >
{
KSimpleConfig* m_pConfig;
public:
KDiff3PluginFactory( const char* instanceName = 0 )
: KGenericFactory< KDiff3Plugin, KonqPopupMenu >( instanceName )
{
m_pConfig = 0;
if (s_pHistory==0)
{
//std::cout << "New History: " << instanceName << std::endl;
s_pHistory = new TQStringList;
m_pConfig = new KSimpleConfig( "kdiff3pluginrc", false );
*s_pHistory = m_pConfig->readListEntry("HistoryStack");
}
}
~KDiff3PluginFactory()
{
//std::cout << "Delete History" << std::endl;
if ( s_pHistory && m_pConfig )
m_pConfig->writeEntry("HistoryStack",*s_pHistory);
delete s_pHistory;
delete m_pConfig;
s_pHistory = 0;
m_pConfig = 0;
}
};
K_EXPORT_COMPONENT_FACTORY (libkdiff3plugin, KDiff3PluginFactory ("kdiff3plugin"))
KDiff3Plugin::KDiff3Plugin( KonqPopupMenu* pPopupmenu, const char *name, const TQStringList & /* list */ )
:KonqPopupMenuPlugin (pPopupmenu, name)
{
if (KStandardDirs::findExe ("kdiff3").isNull ())
return;
m_pParentWidget = pPopupmenu->parentWidget();
KGlobal::locale()->insertCatalogue("kdiff3_plugin");
// remember currently selected files (copy to a TQStringList)
KFileItemList itemList = pPopupmenu->fileItemList();
for ( KFileItem *item = itemList.first(); item; item = itemList.next() )
{
//m_urlList.append( item->url() );
m_list.append( item->url().url() );
}
/* Menu structure:
KDiff3 -> (1 File selected): Save 'selection' for later comparison (push onto history stack)
Compare 'selection' with first file on history stack.
Compare 'selection' with -> choice from history stack
Merge 'selection' with first file on history stack.
Merge 'selection' with last two files on history stack.
(2 Files selected): Compare 's1' with 's2'
Merge 's1' with 's2'
(3 Files selected): Compare 's1', 's2' and 's3'
*/
KActionMenu* pActionMenu = new KActionMenu (i18n ("KDiff3"), "kdiff3", actionCollection (), "kdiff3_menu" );
KAction* pAction = 0;
TQString s;
if(m_list.count() == 1)
{
int historyCount = s_pHistory ? s_pHistory->count() : 0;
s = i18n("Compare with %1").arg( historyCount>0 ? s_pHistory->front() : TQString() );
pAction = new KAction ( s,0, this, TQT_SLOT(slotCompareWith()), actionCollection());
pAction->setEnabled( m_list.count()>0 && historyCount>0 );
pActionMenu->insert (pAction);
s = i18n("Merge with %1").arg( historyCount>0 ? s_pHistory->front() : TQString() );
pAction = new KAction( s, 0, this, TQT_SLOT(slotMergeWith()), actionCollection());
pAction->setEnabled( m_list.count()>0 && historyCount>0 );
pActionMenu->insert (pAction);
s = i18n("Save '%1' for later").arg( ( m_list.front() ) );
pAction = new KAction ( s, 0, this, TQT_SLOT(slotSaveForLater()), actionCollection());
pAction->setEnabled( m_list.count()>0 );
pActionMenu->insert(pAction);
pAction = new KAction (i18n("3-way merge with base"), 0, this, TQT_SLOT(slotMergeThreeWay()), actionCollection());
pAction->setEnabled( m_list.count()>0 && historyCount>=2 );
pActionMenu->insert (pAction);
if ( s_pHistory && !s_pHistory->empty() )
{
KActionMenu* pHistoryMenu = new KActionMenu( i18n("Compare with ..."), "CompareWith", actionCollection (), "kdiff3_history_menu");
pHistoryMenu->setEnabled( m_list.count()>0 && historyCount>0 );
pActionMenu->insert(pHistoryMenu);
for (TQStringList::iterator i = s_pHistory->begin(); i!=s_pHistory->end(); ++i)
{
pAction = new KAction( *i, "History", 0, this, TQT_SLOT(slotCompareWithHistoryItem()), actionCollection());
pHistoryMenu->insert (pAction);
}
pAction = new KAction (i18n("Clear list"), 0, this, TQT_SLOT(slotClearList()), actionCollection());
pActionMenu->insert (pAction);
pAction->setEnabled( historyCount>0 );
}
}
else if(m_list.count() == 2)
{
pAction = new KAction (i18n("Compare"), 0, this, TQT_SLOT(slotCompareTwoFiles()), actionCollection());
pActionMenu->insert (pAction);
}
else if ( m_list.count() == 3 )
{
pAction = new KAction (i18n("3 way comparison"), 0, this, TQT_SLOT(slotCompareThreeFiles()), actionCollection());
pActionMenu->insert (pAction);
}
pAction = new KAction (i18n("About KDiff3 menu plugin ..."), 0, this, TQT_SLOT(slotAbout()), actionCollection());
pActionMenu->insert (pAction);
addSeparator();
addAction( pActionMenu );
addSeparator();
}
KDiff3Plugin::~KDiff3Plugin ()
{
}
void KDiff3Plugin::slotCompareWith()
{
if ( m_list.count() > 0 && s_pHistory && ! s_pHistory->empty() )
{
TQStringList args;
args << s_pHistory->front();
args << m_list.front();
kapp->tdeinitExec ("kdiff3", args);
}
}
void KDiff3Plugin::slotCompareWithHistoryItem()
{
const KAction* pAction = dynamic_cast<const KAction*>( sender() );
if ( m_list.count() > 0 && pAction )
{
TQStringList args;
args << pAction->text();
args << m_list.front();
kapp->tdeinitExec ("kdiff3", args);
}
}
void KDiff3Plugin::slotCompareTwoFiles()
{
if ( m_list.count() == 2 )
{
TQStringList args;
args << m_list.front();
args << m_list.back();
kapp->tdeinitExec ("kdiff3", args);
}
}
void KDiff3Plugin::slotCompareThreeFiles()
{
if ( m_list.count() == 3 )
{
TQStringList args;
args << m_list[0];
args << m_list[1];
args << m_list[2];
kapp->tdeinitExec ("kdiff3", args);
}
}
void KDiff3Plugin::slotMergeWith()
{
if ( m_list.count() > 0 && s_pHistory && ! s_pHistory->empty() )
{
TQStringList args;
args << s_pHistory->front();
args << m_list.front();
args << ( "-o" + m_list.front() );
kapp->tdeinitExec ("kdiff3", args);
}
}
void KDiff3Plugin::slotMergeThreeWay()
{
if ( m_list.count() > 0 && s_pHistory && s_pHistory->count()>=2 )
{
TQStringList args;
args << (*s_pHistory)[1];
args << (*s_pHistory)[0];
args << m_list.front();
args << ("-o" + m_list.front());
kapp->tdeinitExec ("kdiff3", args);
}
}
void KDiff3Plugin::slotSaveForLater()
{
if ( !m_list.isEmpty() && s_pHistory )
{
while ( s_pHistory->count()>=10 )
s_pHistory->pop_back();
s_pHistory->push_front( m_list.front() );
}
}
void KDiff3Plugin::slotClearList()
{
if ( s_pHistory )
s_pHistory->clear();
}
void KDiff3Plugin::slotAbout()
{
TQString s = i18n("KDiff3 Menu Plugin: Copyright (C) 2006 Joachim Eibl\n"
"KDiff3 homepage: http://kdiff3.sourceforge.net\n\n");
s += i18n("Using the contextmenu extension:\n"
"For simple comparison of two selected 2 files choose \"Compare\".\n"
"If the other file is somewhere else \"Save\" the first file for later. "
"It will appear in the \"Compare With ...\" submenu. "
"Then use \"Compare With\" on second file.\n"
"For a 3-way merge first \"Save\" the base file, then the branch to merge and "
"choose \"3-way merge with base\" on the other branch which will be used as destination.\n"
"Same also applies to directory comparison and merge.");
KMessageBox::information(m_pParentWidget, s, tr("About KDiff3 Menu Plugin") );
}
#include "kdiff3plugin.moc"
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