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/*
 *  Copyright (C) 2003 Roberto Raggi (roberto@kdevelop.org)
 *  Copyright (C) 2003 Alexander Dymo (cloudtemple@mksat.net)
 *
 *  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
 *  Library 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.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 *
 */

#include <tqwhatsthis.h>
#include <tqlistview.h>
#include <tqfileinfo.h>
#include <tqlineedit.h>

#include <kiconloader.h>
#include <klocale.h>
#include <kdevgenericfactory.h>
#include <kpopupmenu.h>
#include <kdebug.h>
#include <kmimetype.h>

#include <kdevcore.h>
#include <kdevmainwindow.h>
#include <kdevlanguagesupport.h>
#include <kcomboview.h>
#include <kdevpartcontroller.h>
#include <kdevproject.h>
#include <urlutil.h>
#include <kdevplugininfo.h>

#include <codemodel.h>
#include <codemodel_utils.h>

#include "classviewwidget.h"
#include "classviewpart.h"
#include "hierarchydlg.h"
#include "navigator.h"

#include "klistviewaction.h"

#include <ktexteditor/document.h>
#include <ktexteditor/editinterface.h>
#include <ktexteditor/view.h>
#include <ktexteditor/selectioninterface.h>
#include <ktexteditor/viewcursorinterface.h>
#include <ktexteditor/clipboardinterface.h>


class FunctionCompletion : public CustomCompleter {
    public:
        FunctionCompletion() {
					setOrder( Insertion ); 
        };
        typedef TQMap<TQString, TQString> FuncMap;
        FuncMap nameMap; /// real ->  short
        FuncMap revNameMap; /// short -> real
    
        static const TQString processName( TQString function ) {
            TQString args;
            TQString fScope;
            int cutpos;
    
            if((cutpos = function.find('(')) != -1) {
                args = function.right( function.length() - cutpos );
                function = function.left( cutpos );
            } else {
                return function;
            }
            if((cutpos = function.findRev(':')) != -1 || (cutpos = function.findRev('.')) != -1) {
                fScope = function.left( cutpos + 1 );
                function = function.right( function.length() - cutpos - 1);
            }

            return function;
        }
    
        virtual void addItem ( const TQString &item ) {
            TQString newItemName = item;
            KCompletion::addItem(newItemName);
            TQString tx = processName( item );
            tx += "  \"" + item + "\"";
            nameMap[item] = tx;
            revNameMap[tx] = item;
            if(tx.length() == 0) {
                kdDebug() << "function-name-extraction failed with \"" << item << "\"" << endl;
            }else{
                KCompletion::addItem( tx );
                kdDebug() << "addding \"" << item << "\" as \"" << tx << "\"" << endl;
            }
            KCompletion::addItem( item );
        }
    
        virtual void removeItem ( const TQString &item ) {
            FuncMap::iterator it = nameMap.find( item );
            if( it != nameMap.end() ) {
                KCompletion::removeItem( *it );
                revNameMap.remove( *it );
                nameMap.remove( it );
            }
        }
    
        virtual void clear() {
            nameMap.clear();
            revNameMap.clear();
            KCompletion::clear();
        }
    
        virtual void postProcessMatch ( TQString *match ) const  {
            FuncMap::const_iterator it = revNameMap.find( *match );
            if( it != revNameMap.end() ) {
                *match = *it;
            }
        };
    
        virtual void   postProcessMatches ( TQStringList *matches ) const {
            TQStringList::iterator it = matches->begin();
            
            while( it != matches->end() ) {
                postProcessMatch( &(*it) );
                ++it;
            }
        }
    
        virtual void   postProcessMatches ( KCompletionMatches *matches ) const {
        }
};


typedef KDevGenericFactory<ClassViewPart> ClassViewFactory;
static const KDevPluginInfo data("kdevclassview");
K_EXPORT_COMPONENT_FACTORY( libkdevclassview, ClassViewFactory( data ) )

ClassViewPart::ClassViewPart(TQObject *parent, const char *name, const TQStringList& )
    :/// KDevPlugin( &data, parent, name ? name : "ClassViewPart" ),
    KDevCodeBrowserFrontend( &data, parent, name ? name : "ClassViewPart" ),
    m_activeDocument(0), m_activeView(0), m_activeSelection(0), m_activeEditor(0), m_activeViewCursor(0), m_hierarchyDlg(0)
{
    setInstance(ClassViewFactory::instance());
    setXMLFile("kdevclassview.rc");
    
    navigator = new Navigator(this);

    setupActions();

    m_widget = new ClassViewWidget(this);
    m_widget->setIcon( SmallIcon("view_tree") );
    m_widget->setCaption(i18n("Class Browser"));
    mainWindow()->embedSelectView( m_widget, i18n("Classes"), i18n("Class browser") );
    TQWhatsThis::add(m_widget, i18n("<b>Class browser</b><p>"
            "The class browser shows all namespaces, classes and namespace and class members in a project."));

    connect( core(), TQT_SIGNAL(projectOpened()), this, TQT_SLOT(slotProjectOpened()) );
    connect( core(), TQT_SIGNAL(projectClosed()), this, TQT_SLOT(slotProjectClosed()) );
    connect( core(), TQT_SIGNAL(languageChanged()), this, TQT_SLOT(slotProjectOpened()) );
    connect( partController(), TQT_SIGNAL(activePartChanged(KParts::Part*)),
        this, TQT_SLOT(activePartChanged(KParts::Part*)));
}

bool ClassViewPart::jumpedToItem( ItemDom item ) {
    if(!m_widget) return false;
    return m_widget->selectItem(item);
}

ClassViewPart::~ClassViewPart()
{
    mainWindow()->removeView( m_widget );
    delete (ClassViewWidget*) m_widget;
    delete m_hierarchyDlg;
}

void ClassViewPart::slotProjectOpened( )
{
    connect( languageSupport(), TQT_SIGNAL(updatedSourceInfo()), navigator, TQT_SLOT(refresh()) );
    connect( languageSupport(), TQT_SIGNAL(addedSourceInfo(const TQString& )), navigator, TQT_SLOT(addFile(const TQString& )));
    navigator->refresh();
}

void ClassViewPart::slotProjectClosed( )
{
//    navigator->refresh();
//    disconnect( languageSupport(), TQT_SIGNAL(updatedSourceInfo()), navigator, TQT_SLOT(refresh()) );
}

void ClassViewPart::setupActions( )
{
    m_functionsnav = new KListViewAction( new KComboView(true, 150, 0, "m_functionsnav_combo", new FunctionCompletion() ), i18n("Functions Navigation"), 0, 0, 0, actionCollection(), "functionsnav_combo", true );
    connect(m_functionsnav->view(), TQT_SIGNAL(activated(TQListViewItem*)), navigator, TQT_SLOT(selectFunctionNav(TQListViewItem*)));
//    m_functionsnav->view()->setEditable(false);
    connect(m_functionsnav->view(), TQT_SIGNAL(focusGranted()), navigator, TQT_SLOT(functionNavFocused()));
    connect(m_functionsnav->view(), TQT_SIGNAL(focusLost()), navigator, TQT_SLOT(functionNavUnFocused()));
    m_functionsnav->setToolTip(i18n("Functions in file"));
    m_functionsnav->setWhatsThis(i18n("<b>Function navigator</b><p>Navigates over functions contained in the file."));
//    m_functionsnav->view()->setCurrentText(NAV_NODEFINITION);
    m_functionsnav->view()->setDefaultText(NAV_NODEFINITION);

    new KAction( i18n("Focus Navigator"), 0, this, TQT_SLOT(slotFocusNavbar()), actionCollection(), "focus_navigator" );

    if (langHasFeature(KDevLanguageSupport::Classes))
    {
        KAction *ac = new KAction(i18n("Class Inheritance Diagram"), "view_tree", 0, this, TQT_SLOT(graphicalClassView()), actionCollection(), "inheritance_dia");
        ac->setToolTip(i18n("Class inheritance diagram"));
        ac->setWhatsThis(i18n("<b>Class inheritance diagram</b><p>Displays inheritance relationship between classes in project. "
                                 "Note, it does not display classes outside inheritance hierarchy."));    
    }
}

bool ClassViewPart::langHasFeature(KDevLanguageSupport::Features feature)
{
    bool result = false;
    if (languageSupport())
        result = (feature & languageSupport()->features());
    return result;
}

void ClassViewPart::graphicalClassView( )
{
    if( !m_hierarchyDlg )
        m_hierarchyDlg = new HierarchyDialog(this);
    m_hierarchyDlg->refresh();
    m_hierarchyDlg->show();
}

void ClassViewPart::refresh() {
	if( navigator )
			navigator->refresh();
}

void ClassViewPart::activePartChanged( KParts::Part * part)
{
    navigator->stopTimer();
    if (m_activeView)
    {
        disconnect(m_activeView, TQT_SIGNAL(cursorPositionChanged()), 
            navigator, TQT_SLOT(slotCursorPositionChanged()));
    }
    
    kdDebug() << "ClassViewPart::activePartChanged()" << endl;

    m_activeDocument = dynamic_cast<KTextEditor::Document*>( part );
    m_activeView = part ? dynamic_cast<KTextEditor::View*>( part->widget() ) : 0;
    m_activeEditor = dynamic_cast<KTextEditor::EditInterface*>( part );
    m_activeSelection = dynamic_cast<KTextEditor::SelectionInterface*>( part );
    m_activeViewCursor = part ? dynamic_cast<KTextEditor::ViewCursorInterface*>( m_activeView ) : 0;

    m_activeFileName = TQString::null;

    if (m_activeDocument)
    {
        m_activeFileName = URLUtil::canonicalPath( m_activeDocument->url().path() );
        navigator->refreshNavBars(m_activeFileName);
        navigator->syncFunctionNavDelayed(200);
/*        if ( languageSupport()->mimeTypes().find(
            KMimeType::findByPath(m_activeFileName)) != languageSupport()->mimeTypes().end() )
            m_activeFileName = TQString::null;*/
    }
    if( m_activeViewCursor )
    {
        connect(m_activeView, TQT_SIGNAL(cursorPositionChanged()),
            navigator, TQT_SLOT(slotCursorPositionChanged()) );
    }
}
void ClassViewPart::slotFocusNavbar()
{
    m_functionsnav->view()->setFocus();
}

#include "classviewpart.moc"