kexiinternalpart.cpp

/* This file is part of the KDE project
   Copyright (C) 2004 Lucijan Busch <lucijan@kde.org>
   Copyright (C) 2004-2006 Jaroslaw Staniek <js@iidea.pl>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   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 "kexiinternalpart.h"
 
#include "kexidialogbase.h"
#include "kexiviewbase.h"
#include "keximainwindow.h"
 
#include <tqasciidict.h>
#include <tqdialog.h>
 
#include <kdebug.h>
#include <klibloader.h>
#include <tdelocale.h>
#include <ktrader.h>
#include <tdeparts/componentfactory.h>
#include <kexidb/msghandler.h>

class KexiInternalPartManager
{
    public:
        KexiInternalPartManager()
         : m_parts(101, false)
        {
            m_parts.setAutoDelete(false);
        }
        
        KexiInternalPart* findPart(KexiDB::MessageHandler *msgHdr, const char* partName)
        {
            KexiInternalPart *part = m_parts[partName];
            if (!part) {
                TQCString fullname("kexihandler_");
                fullname += TQCString(partName).lower();
                part = KParts::ComponentFactory::createInstanceFromLibrary<KexiInternalPart>(
                    fullname, 0, fullname);
                if (!part) {
                    if (msgHdr)
                        msgHdr->showErrorMessage(i18n("Could not load \"%1\" plugin.").arg(partName));
                }
                else
                    m_parts.insert(partName, part);
            }
            return part;
        }
    
    private:
        
        TQAsciiDict<KexiInternalPart> m_parts;
};
 
KexiInternalPartManager internalPartManager;
 
//----------------------------------------------
 
KexiInternalPart::KexiInternalPart(TQObject *parent, const char *name, const TQStringList &)
 : TQObject(parent, name)
 , m_uniqueDialog(true)
 , m_cancelled(false)
{
}
 
KexiInternalPart::~KexiInternalPart()
{
}
 
//static
const KexiInternalPart *
KexiInternalPart::part(KexiDB::MessageHandler *msgHdr, const char* partName)
{
    return internalPartManager.findPart(msgHdr, partName);
}
 
//static
TQWidget* KexiInternalPart::createWidgetInstance(const char* partName, 
    const char* widgetClass, KexiDB::MessageHandler *msgHdr, KexiMainWindow* mainWin, 
    TQWidget *parent, const char *objName, TQMap<TQString,TQString>* args)
{
    KexiInternalPart *part = internalPartManager.findPart(msgHdr, partName);
    if (!part)
        return 0; //fatal!
    return part->createWidget(widgetClass, mainWin, parent, objName ? objName : partName, args);
}
 
KexiDialogBase* KexiInternalPart::findOrCreateKexiDialog(
    KexiMainWindow* mainWin, const char *objName)
{
    if (m_uniqueDialog && !m_uniqueWidget.isNull())
        return dynamic_cast<KexiDialogBase*>((TQWidget*)m_uniqueWidget);
//  KexiDialogBase *dlg = createDialog(mainWin, objName);
    KexiDialogBase * dlg = new KexiDialogBase(mainWin, "");
    KexiViewBase *view = createView(mainWin, 0, objName);
    if (!view)
        return 0;
 
//  dlg->show();
    
    if (m_uniqueDialog)
        m_uniqueWidget = dlg; //recall unique!
    dlg->addView(view);
    dlg->setCaption( view->caption() );
    dlg->setTabCaption( view->caption() );
    dlg->resize(view->sizeHint());
    dlg->setMinimumSize(view->minimumSizeHint().width(),view->minimumSizeHint().height());
    dlg->setId( mainWin->generatePrivateID() );
    dlg->registerDialog();
    return dlg;
}
 
//static
KexiDialogBase* KexiInternalPart::createKexiDialogInstance(
    const char* partName, 
    KexiDB::MessageHandler *msgHdr, KexiMainWindow* mainWin, const char *objName)
{
    KexiInternalPart *part = internalPartManager.findPart(msgHdr, partName);
    if (!part) {
        kdDebug() << "KexiInternalPart::createDialogInstance() !part" << endl;
        return 0; //fatal!
    }
    return part->findOrCreateKexiDialog(mainWin, objName ? objName : partName);
}
 
//static
TQDialog* KexiInternalPart::createModalDialogInstance(const char* partName, 
    const char* dialogClass, KexiDB::MessageHandler *msgHdr, KexiMainWindow* mainWin, 
    const char *objName, TQMap<TQString,TQString>* args)
{
    KexiInternalPart *part = internalPartManager.findPart(msgHdr, partName);
    if (!part) {
        kdDebug() << "KexiInternalPart::createDialogInstance() !part" << endl;
        return 0; //fatal!
    }
    TQWidget *w;
    if (part->uniqueDialog() && !part->m_uniqueWidget.isNull())
        w = part->m_uniqueWidget;
    else
        w = part->createWidget(dialogClass, mainWin, mainWin, objName ? objName : partName, args);
 
    if (dynamic_cast<TQDialog*>(w)) {
        if (part->uniqueDialog())
            part->m_uniqueWidget = w;
        return dynamic_cast<TQDialog*>(w);
    }
    //sanity
    if (! (part->uniqueDialog() && !part->m_uniqueWidget.isNull()))
        delete w;
    return 0;
}
 
//static 
bool KexiInternalPart::executeCommand(const char* partName, 
    KexiMainWindow* mainWin, const char* commandName, TQMap<TQString,TQString>* args)
{
    KexiInternalPart *part = internalPartManager.findPart(0, partName);
    if (!part) {
        kdDebug() << "KexiInternalPart::createDialogInstance() !part" << endl;
        return 0; //fatal!
    }
    return part->executeCommand(mainWin, commandName, args);
}
 
TQWidget* KexiInternalPart::createWidget(const char* widgetClass, KexiMainWindow* mainWin, 
    TQWidget * parent, const char * objName, TQMap<TQString,TQString>* args)
{
    Q_UNUSED(widgetClass);
    Q_UNUSED(mainWin);
    Q_UNUSED(parent);
    Q_UNUSED(objName);
    Q_UNUSED(args);
    return 0;
}
 
KexiViewBase* KexiInternalPart::createView(KexiMainWindow* mainWin, TQWidget * parent,
 const char * objName)
{
    Q_UNUSED(mainWin);
    Q_UNUSED(parent);
    Q_UNUSED(objName);
    return 0;
}
 
bool KexiInternalPart::executeCommand(KexiMainWindow* mainWin, const char* commandName, 
    TQMap<TQString,TQString>* args)
{
    Q_UNUSED(mainWin);
    Q_UNUSED(commandName);
    Q_UNUSED(args);
    return false;
}
 
#include "kexiinternalpart.moc"