//=============================================================================
//
//   File : TermWidget.cpp
//   Creation date : Thu Aug 10 2000 17:42:12 by Szymon Stefanek
//
//   This file is part of the KVIrc IRC client distribution
//   Copyright (C) 2000-2010 Szymon Stefanek (pragma at kvirc dot 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 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.
//
//=============================================================================

#include "TermWidget.h"
#include "TermWindow.h"

#include "KviModule.h"
#include "KviMainWindow.h"
#include "KviIconManager.h"
#include "KviLocale.h"
#include "KviPointerList.h"

#include <QLabel>
#include <QToolTip>
#include <QTimer>

#ifdef COMPILE_KDE4_SUPPORT

	#include "klibloader.h"
	#include "kparts/part.h"
	#include "kparts/factory.h"
	#include <kde_terminal_interface.h>

	extern KviModule                     * g_pTermModule;
	extern KviPointerList<TermWidget> * g_pTermWidgetList;
	extern KviPointerList<TermWindow> * g_pTermWindowList;

	TermWidget::TermWidget(QWidget * par,bool bIsStandalone)
	: QFrame(par)
	{
		setObjectName("term_widget");
		if(bIsStandalone)g_pTermWidgetList->append(this);
		m_bIsStandalone = bIsStandalone;

		m_pKonsolePart = 0;
		m_pKonsoleWidget = 0;

		if(bIsStandalone)
		{
			m_pHBox = new KviTalHBox(this);
			m_pTitleLabel = new QLabel(__tr2qs("Terminal emulator"),m_pHBox);
			m_pTitleLabel->setFrameStyle(QFrame::Raised | QFrame::StyledPanel);
			m_pCloseButton = new QPushButton("",m_pHBox);
			m_pCloseButton->setIcon(*(g_pIconManager->getSmallIcon(KviIconManager::Close)));
			m_pCloseButton->setToolTip(__tr2qs("Close this window"));
			m_pHBox->setStretchFactor(m_pTitleLabel,2);
			connect(m_pCloseButton,SIGNAL(clicked()),this,SLOT(closeClicked()));
		} else {
			m_pHBox = 0;
			m_pTitleLabel = 0;
			m_pCloseButton = 0;
		}

		setFrameStyle(QFrame::Sunken | QFrame::Panel);

		KPluginFactory *pKonsoleFactory = KPluginLoader("libkonsolepart").factory();

		if(pKonsoleFactory)
		{
			m_pKonsolePart = static_cast<KParts::ReadOnlyPart *>(pKonsoleFactory->create<QObject>(this, this));

			if(m_pKonsolePart)
			{
				// start the terminal
				qobject_cast<TerminalInterface*>(m_pKonsolePart)->showShellInDir( QString() );

				m_pKonsoleWidget = m_pKonsolePart->widget();

				setFocusProxy(m_pKonsoleWidget);
				m_pKonsoleWidget->show();

				connect ( m_pKonsolePart, SIGNAL(destroyed()), this, SLOT(konsoleDestroyed()) );
			} else {
				m_pKonsoleWidget = new QLabel(__tr2qs("Can't create the terminal emulation part"), this);
			}
		} else {
			m_pKonsoleWidget = new QLabel(__tr2qs("Can't retrieve the terminal emulation factory"), this);
		}
	}

	TermWidget::~TermWidget()
	{
		if(m_pKonsoleWidget)
			disconnect(m_pKonsoleWidget,SIGNAL(destroyed()),this,SLOT(konsoleDestroyed()));

		if(m_bIsStandalone)g_pTermWidgetList->removeRef(this);
		if(g_pTermWindowList->isEmpty() && g_pTermWidgetList->isEmpty())g_pTermModule->unlock();
	}

	void TermWidget::resizeEvent(QResizeEvent *)
	{
		int hght = 0;
		if(m_bIsStandalone)
		{
			hght = m_pCloseButton->sizeHint().height();
			m_pHBox->setGeometry(1,1,width() - 2,hght + 1);

		}
		if(m_pKonsoleWidget)
			m_pKonsoleWidget->setGeometry(1,hght + 1,width() - 2,height() - (hght + 2));
	}

	void TermWidget::closeClicked()
	{
		// this is called only in standalone  mode
		delete this;
	}

	void TermWidget::konsoleDestroyed()
	{
		m_pKonsoleWidget = 0;
		m_pKonsolePart = 0;
		hide();
		QTimer::singleShot(0,this,SLOT(autoClose()));
	}

	void TermWidget::autoClose()
	{
		if(m_bIsStandalone)delete this;
		else ((KviWindow *)parent())->close();
	}

	void TermWidget::changeTitle(int,const QString& str)
	{
		if(m_bIsStandalone)m_pTitleLabel->setText(str);
	}

	void TermWidget::notifySize(int,int)
	{
	}

	void TermWidget::changeColumns(int)
	{
	}

	QSize TermWidget::sizeHint() const
	{
		int hght = 0;
		int wdth = 0;
		if(m_pKonsoleWidget)
		{
			hght += m_pKonsoleWidget->sizeHint().height();
			wdth = m_pKonsoleWidget->sizeHint().width();
		}
		if(m_pCloseButton)
		{
			hght += m_pCloseButton->sizeHint().height();
		}

		return QSize(wdth + 2,hght + 2);
	}


#endif //COMPILE_KDE4_SUPPORT