/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/***************************************************************************
	begin                : 2005
	copyright            : (C) 2005 by Craig Bradney
	email                : cbradney@zip.com.au
***************************************************************************/

/***************************************************************************
*                                                                         *
*   ScMW 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.                                   *
*                                                                         *
***************************************************************************/

#include "tocindexprefs.h"

#include <QCheckBox>
#include <QComboBox>
#include <QEvent>
#include <QLabel>
#include <QLayout>
#include <QLineEdit>
#include <QListWidget>
#include <QListWidgetItem>
#include <QPushButton>
#include <QTabWidget>
#include <QToolTip>
#include <QVariant>


#include "page.h"
#include "scribusdoc.h"
#include "commonstrings.h"
#include "util.h"

/*!
*  \brief Constructs a TOCIndexPrefs as a child of 'parent', with the
*  name 'name' and widget flags set to 'f'.
*/
TOCIndexPrefs::TOCIndexPrefs( QWidget* parent, const char* name, Qt::WFlags fl )
	: QWidget( parent, fl )
{
	setupUi(this);
	setObjectName(name);
	languageChange();
	itemDestFrameComboBox->setMaximumWidth(fontMetrics().width( "This is a very long Name" ));
	itemAttrComboBox->setMaximumWidth(fontMetrics().width( "This is a very long Name" ));
	itemNumberPlacementComboBox->setMaximumWidth(fontMetrics().width( "This is a very long Name" ));
	itemParagraphStyleComboBox->setMaximumWidth(fontMetrics().width( "This is a very long Name" ));
	resize( QSize(444, 234).expandedTo(minimumSizeHint()) );

	// signals and slots connections
	connect( tocListBox, SIGNAL( currentRowChanged(int) ), this, SLOT( selectToC(int) ) );
	connect( tocAddButton, SIGNAL( clicked() ), this, SLOT( addToC() ) );
	connect( tocDeleteButton, SIGNAL( clicked() ), this, SLOT( deleteToC() ) );
	connect( itemAttrComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemAttributeSelected(const QString&) ) );
	connect( itemDestFrameComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemFrameSelected(const QString&) ) );
	connect( itemParagraphStyleComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemParagraphStyleSelected(const QString&) ) );
	connect( itemNumberPlacementComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemPageNumberPlacedSelected(const QString&) ) );
	connect( tocNameLineEdit, SIGNAL( textChanged(const QString&) ), this, SLOT( setToCName(const QString&) ) );
	connect( itemListNonPrintingCheckBox, SIGNAL( toggled(bool) ), this, SLOT( nonPrintingFramesSelected(bool) ) );
	init();
}

/*
*  Destroys the object and frees any allocated resources
*/
TOCIndexPrefs::~TOCIndexPrefs()
{
	// no need to delete child widgets, Qt does it all for us
}

void TOCIndexPrefs::changeEvent(QEvent *e)
{
	if (e->type() == QEvent::LanguageChange)
	{
		languageChange();
	}
	else
		QWidget::changeEvent(e);
}

void TOCIndexPrefs::languageChange()
{
	setWindowTitle( tr( "Table of Contents and Indexes" ) );
	tocAddButton->setText( tr( "&Add" ) );
	tocAddButton->setShortcut( QKeySequence( tr( "Alt+A" ) ) );
	tocDeleteButton->setText( tr( "&Delete" ) );
	tocDeleteButton->setShortcut( QKeySequence( tr( "Alt+D" ) ) );
	itemDestFrameComboBox->setToolTip( tr( "The frame the table of contents will be placed into" ) );
	tocNumberPlacementLabel->setText( tr( "Page Number Placement:" ) );
	tocItemAttrLabel->setText( tr( "Item Attribute Name:" ) );
	itemAttrComboBox->setToolTip( tr( "The Item Attribute that will be set on frames used as a basis for creation of the entries" ) );
	itemNumberPlacementComboBox->setToolTip( tr( "Place page numbers of the entries at the beginning or the end of the line, or not at all" ) );
	itemListNonPrintingCheckBox->setText( tr( "List Non-Printing Entries" ) );
	itemListNonPrintingCheckBox->setToolTip( tr( "Include frames that are set to not print as well" ) );
	itemParagraphStyleComboBox->setToolTip( tr( "The paragraph style used for the entry lines" ) );
	tocParagraphStyleLabel->setText( tr( "Paragraph Style:" ) );
	tocDestFrameLabel->setText( tr( "Destination Frame:" ) );
	tabTOCIndexWidget->setTabText( tabTOCIndexWidget->indexOf(tab), tr( "Table Of Contents" ) );
// 	tabTOCIndexWidget->changeTab( tab_2, tr( "Inde&x" ) );
}

void TOCIndexPrefs::init()
{
	disconnect( tocListBox, SIGNAL( currentRowChanged(int) ), this, SLOT( selectToC(int) ) );
	trStrNone=tr("None");
	strNone=CommonStrings::None;
	trStrPNBeginning=tr("Beginning");
	strPNBeginning="Beginning";
	trStrPNEnd=tr("End");
	strPNEnd="End";
	trStrPNNotShown=tr("Not Shown");
	strPNNotShown="Not Shown";

	itemNumberPlacementComboBox->clear();
	itemNumberPlacementComboBox->addItem(trStrPNEnd);
	itemNumberPlacementComboBox->addItem(trStrPNBeginning);
	itemNumberPlacementComboBox->addItem(trStrPNNotShown);
	setCurrentComboItem(itemNumberPlacementComboBox, trStrPNEnd);
	numSelected=999;
}


void TOCIndexPrefs::destroy()
{

}

void TOCIndexPrefs::setup( ToCSetupVector* tocsetups, ScribusDoc *doc)
{
	localToCSetupVector=* tocsetups;
	currDoc=doc;
	generatePageItemList();
	bool enabled=(localToCSetupVector.count()>0);
	if (enabled)
	{
		updateToCListBox();
		updateParagraphStyleComboBox();
		tocListBox->setCurrentItem(0);
		selectToC(0);
	}
	else
		tocListBox->clear();
	enableGUIWidgets();
	connect( tocListBox, SIGNAL( currentRowChanged(int) ), this, SLOT( selectToC(int) ) );
}

void TOCIndexPrefs::generatePageItemList()
{
	itemDestFrameComboBox->clear();
	itemDestFrameComboBox->addItem(trStrNone);
	if (currDoc!=NULL)
	{
		for (int d = 0; d < currDoc->DocItems.count(); ++d)
		{
			if (currDoc->DocItems.at(d)->itemType()==PageItem::TextFrame)
				itemDestFrameComboBox->addItem(currDoc->DocItems.at(d)->itemName());
		}
	}
	else
		itemDestFrameComboBox->setEnabled(false);
}


void TOCIndexPrefs::setupItemAttrs( QStringList newNames )
{
	disconnect( itemAttrComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemAttributeSelected(const QString&) ) );
	itemAttrComboBox->clear();
	itemAttrComboBox->addItem(trStrNone);
	itemAttrComboBox->addItems(newNames);
	if (numSelected!=999)
	{
		if (localToCSetupVector[numSelected].itemAttrName==strNone)
			setCurrentComboItem(itemAttrComboBox, trStrNone);
		else
			setCurrentComboItem(itemAttrComboBox, localToCSetupVector[numSelected].itemAttrName);
	}
	connect( itemAttrComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemAttributeSelected(const QString&) ) );
}


void TOCIndexPrefs::selectToC( int numberSelected )
{
	numSelected=numberSelected;
	if (numSelected < 0)
		return;
	if (localToCSetupVector.isEmpty())
		return;
	if (localToCSetupVector.count()<numSelected)
		numSelected=0;
	disconnect( tocListBox, SIGNAL( currentRowChanged(int) ), this, SLOT( selectToC(int) ) );
	disconnect( itemAttrComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemAttributeSelected(const QString&) ) );
	disconnect( itemDestFrameComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemFrameSelected(const QString&) ) );
	disconnect( itemParagraphStyleComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemParagraphStyleSelected(const QString&) ) );
	disconnect( itemNumberPlacementComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemPageNumberPlacedSelected(const QString&) ) );
	disconnect( tocNameLineEdit, SIGNAL( textChanged(const QString&) ), this, SLOT( setToCName(const QString&) ) );
	disconnect( itemListNonPrintingCheckBox, SIGNAL( toggled(bool) ), this, SLOT( nonPrintingFramesSelected(bool) ) );
	if (localToCSetupVector[numSelected].itemAttrName==strNone)
		setCurrentComboItem(itemAttrComboBox, trStrNone);
	else
		setCurrentComboItem(itemAttrComboBox, localToCSetupVector[numSelected].itemAttrName);
	if (localToCSetupVector[numSelected].pageLocation==NotShown)
		setCurrentComboItem(itemNumberPlacementComboBox, trStrPNNotShown);
	else
		if (localToCSetupVector[numSelected].pageLocation==Beginning)
		setCurrentComboItem(itemNumberPlacementComboBox, trStrPNBeginning);
	else
		setCurrentComboItem(itemNumberPlacementComboBox, trStrPNEnd);

	itemListNonPrintingCheckBox->setChecked(localToCSetupVector[numSelected].listNonPrintingFrames);
	if (currDoc!=NULL)
	{
		if (localToCSetupVector[numSelected].frameName==strNone)
			setCurrentComboItem(itemDestFrameComboBox, trStrNone);
		else
			setCurrentComboItem(itemDestFrameComboBox, localToCSetupVector[numSelected].frameName);

		if (itemParagraphStyleComboBox->count()>0)
		{
			if (!paragraphStyleList.contains(localToCSetupVector[numSelected].textStyle) || localToCSetupVector[numSelected].textStyle==strNone)
				setCurrentComboItem(itemParagraphStyleComboBox, trStrNone);
			else
				setCurrentComboItem(itemParagraphStyleComboBox, localToCSetupVector[numSelected].textStyle);
		}
	}

	if (tocListBox->currentItem())
		tocNameLineEdit->setText(tocListBox->currentItem()->text());

	connect( tocListBox, SIGNAL( currentRowChanged(int) ), this, SLOT( selectToC(int) ) );
	connect( itemAttrComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemAttributeSelected(const QString&) ) );
	connect( itemDestFrameComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemFrameSelected(const QString&) ) );
	connect( itemParagraphStyleComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemParagraphStyleSelected(const QString&) ) );
	connect( itemNumberPlacementComboBox, SIGNAL( activated(const QString&) ), this, SLOT( itemPageNumberPlacedSelected(const QString&) ) );
	connect( tocNameLineEdit, SIGNAL( textChanged(const QString&) ), this, SLOT( setToCName(const QString&) ) );
	connect( itemListNonPrintingCheckBox, SIGNAL( toggled(bool) ), this, SLOT( nonPrintingFramesSelected(bool) ) );
}


void TOCIndexPrefs::addToC()
{
	bool found=false;
	QString newName=tocNameLineEdit->text();
	for(ToCSetupVector::Iterator it = localToCSetupVector.begin(); it!= localToCSetupVector.end(); ++it)
	{
		if ((*it).name==newName)
			found=true;
	}
	if (found || newName.isEmpty())
		newName=tr("Table of Contents %1").arg(localToCSetupVector.count()+1);
	ToCSetup newToCEntry;
	newToCEntry.name=newName;
	newToCEntry.itemAttrName=strNone;
	newToCEntry.frameName=strNone;
	newToCEntry.textStyle=strNone;
	newToCEntry.pageLocation=End;
	newToCEntry.listNonPrintingFrames=false;
	localToCSetupVector.append(newToCEntry);
	disconnect( tocListBox, SIGNAL( currentRowChanged(int) ), this, SLOT( selectToC(int) ) );
	updateToCListBox();
	if (localToCSetupVector.count()==1) //reinit parastyles if we are adding the first TOC
		updateParagraphStyleComboBox();
	tocListBox->setCurrentRow(localToCSetupVector.count()-1);
	selectToC(localToCSetupVector.count()-1);
	enableGUIWidgets();
	connect( tocListBox, SIGNAL( currentRowChanged(int) ), this, SLOT( selectToC(int) ) );
}


void TOCIndexPrefs::updateToCListBox()
{
	tocListBox->clear();
	QStringList sl;
	for(ToCSetupVector::Iterator it = localToCSetupVector.begin(); it!= localToCSetupVector.end(); ++it)
		sl << (*it).name;
	tocListBox->insertItems(0, sl);
}

void TOCIndexPrefs::updateParagraphStyleComboBox()
{
	paragraphStyleList.clear();
	paragraphStyleList.append(trStrNone);

	if(currDoc!=NULL) // && currDoc->docParagraphStyles.count()>5)
	{
		for (int i = 0; i < currDoc->paragraphStyles().count(); ++i)
			paragraphStyleList.append(currDoc->paragraphStyles()[i].name());
	}
	itemParagraphStyleComboBox->clear();
	itemParagraphStyleComboBox->addItems(paragraphStyleList);
}


void TOCIndexPrefs::enableGUIWidgets()
{
	bool enabled=(localToCSetupVector.count()>0);
	tocListBox->setEnabled(enabled);
	tocDeleteButton->setEnabled(enabled);
	itemAttrComboBox->setEnabled(enabled);
	itemNumberPlacementComboBox->setEnabled(enabled);
	bool haveDoc=enabled && currDoc!=NULL;
	itemDestFrameComboBox->setEnabled(haveDoc);
	itemParagraphStyleComboBox->setEnabled(haveDoc);
}


void TOCIndexPrefs::deleteToC()
{
	int numberSelected=tocListBox->currentRow();
	if (numberSelected>=0)
	{
		int i=0;
		ToCSetupVector::Iterator it=localToCSetupVector.begin();
		while (it!= localToCSetupVector.end() && i<numberSelected)
		{
			++it;
			++i;
		}
		localToCSetupVector.erase(it);
		updateToCListBox();
		enableGUIWidgets();
	}
}


void TOCIndexPrefs::itemAttributeSelected( const QString& itemAttributeName )
{
	int numberSelected=tocListBox->currentRow();
	if (numberSelected>=0)
	{
		int i=0;
		ToCSetupVector::Iterator it=localToCSetupVector.begin();
		while (it!= localToCSetupVector.end() && i<numberSelected)
		{
			++it;
			++i;
		}
		if (itemAttributeName==trStrNone)
			(*it).itemAttrName=strNone;
		else
			(*it).itemAttrName=itemAttributeName;
	}
}


void TOCIndexPrefs::itemFrameSelected( const QString& frameName )
{
	int numberSelected=tocListBox->currentRow();
	if (numberSelected>=0)
	{
		int i=0;
		ToCSetupVector::Iterator it=localToCSetupVector.begin();
		while (it!= localToCSetupVector.end() && i<numberSelected)
		{
			++it;
			++i;
		}
		if (frameName==trStrNone)
			(*it).frameName=strNone;
		else
			(*it).frameName=frameName;
	}

}


void TOCIndexPrefs::itemPageNumberPlacedSelected( const QString& pageLocation )
{
	int numberSelected=tocListBox->currentRow();
	if (numberSelected>=0)
	{
		int i=0;
		ToCSetupVector::Iterator it=localToCSetupVector.begin();
		while (it!= localToCSetupVector.end() && i<numberSelected)
		{
			++it;
			++i;
		}
		if (pageLocation==trStrPNBeginning || pageLocation==strPNBeginning)
			(*it).pageLocation=Beginning;
		else
		if (pageLocation==trStrPNEnd || pageLocation==strPNEnd)
			(*it).pageLocation=End;
		else
			(*it).pageLocation=NotShown;
	}
}


void TOCIndexPrefs::itemParagraphStyleSelected( const QString& itemStyle )
{
	int numberSelected=tocListBox->currentRow();
	if (numberSelected>=0)
	{
		int i=0;
		ToCSetupVector::Iterator it=localToCSetupVector.begin();
		while (it!= localToCSetupVector.end() && i<numberSelected)
		{
			++it;
			++i;
		}
		if (itemStyle==trStrNone)
			(*it).textStyle=strNone;
		else
			(*it).textStyle=itemStyle;
	}
}

ToCSetupVector* TOCIndexPrefs::getNewToCs()
{
	return &localToCSetupVector;
}


void TOCIndexPrefs::setToCName( const QString &newName )
{
	int numberSelected=tocListBox->currentRow();
	if (numberSelected!=-1)
	{
		tocListBox->item(numberSelected)->setText(newName);
		int i=0;
		ToCSetupVector::Iterator it=localToCSetupVector.begin();
		while (it!= localToCSetupVector.end() && i<numberSelected)
		{
			++it;
			++i;
		}
		(*it).name=newName;
	}
}


void TOCIndexPrefs::nonPrintingFramesSelected( bool showNonPrinting )
{
	int numberSelected=tocListBox->currentRow();
	if (numberSelected>=0)
	{
		int i=0;
		ToCSetupVector::Iterator it=localToCSetupVector.begin();
		while (it!= localToCSetupVector.end() && i<numberSelected)
		{
			++it;
			++i;
		}
		(*it).listNonPrintingFrames=showNonPrinting;
	}
}