/**
 * \file QDocumentDialog.C
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author Edwin Leuven
 *
 * Full author contact details are available in file CREDITS
 */

#include <config.h>
#include "qt_helpers.h"

#include "ControlDocument.h"
#include "QDocument.h"


#include "QDocumentDialog.h"

#include "ui/TextLayoutModuleBase.h"
#include "ui/MathsModuleBase.h"
#include "ui/LaTeXModuleBase.h"
#include "ui/PageLayoutModuleBase.h"
#include "ui/LanguageModuleBase.h"
#include "ui/BulletsModuleBase.h"
#include "BulletsModule.h"
#include "ui/BiblioModuleBase.h"
#include "ui/NumberingModuleBase.h"
#include "ui/MarginsModuleBase.h"
#include "ui/PreambleModuleBase.h"
#include "panelstack.h"
#include "floatplacement.h"

#include "Spacing.h"
#include "support/lstrings.h"
#include "lyxrc.h"
#include "buffer.h"

#include <qwidgetstack.h>
#include <qlistbox.h>
#include <qlabel.h>
#include <qmultilineedit.h>
#include <qlineedit.h>
#include <qlistview.h>
#include <qpushbutton.h>
#include <qcombobox.h>
#include <qradiobutton.h>
#include <qcheckbox.h>
#include <qspinbox.h>
#include "lengthcombo.h"


QDocumentDialog::QDocumentDialog(QDocument * form)
	: QDocumentDialogBase(0, 0, false, 0), form_(form)
{
	connect(okPB, SIGNAL(clicked()),
		form, SLOT(slotOK()));
	connect(applyPB, SIGNAL(clicked()),
		form, SLOT(slotApply()));
	connect(closePB, SIGNAL(clicked()),
		form, SLOT(slotClose()));
	connect(restorePB, SIGNAL(clicked()),
		form, SLOT(slotRestore()));

	textLayoutModule = new TextLayoutModuleBase(this);
	pageLayoutModule = new PageLayoutModuleBase(this);
	marginsModule = new MarginsModuleBase(this);
	langModule = new LanguageModuleBase(this);
	bulletsModule = new BulletsModule(this);
	numberingModule = new NumberingModuleBase(this);
	biblioModule = new BiblioModuleBase(this);
	mathsModule = new MathsModuleBase(this);
	floatModule = new FloatPlacement(this, "floatplacement");
	latexModule = new LaTeXModuleBase(this);
	preambleModule = new PreambleModuleBase(this);

	docPS->addPanel(latexModule, _("Document Class"));
	docPS->addPanel(textLayoutModule, _("Text Layout"));
	docPS->addPanel(pageLayoutModule, _("Page Layout"));
	docPS->addPanel(marginsModule, _("Page Margins"));
	docPS->addPanel(langModule, _("Language"));
	docPS->addPanel(numberingModule, _("Table of Contents"));
	docPS->addPanel(biblioModule, _("Bibliography"));
	docPS->addPanel(mathsModule, _("Math options"));
	docPS->addPanel(floatModule, _("Float Placement"));
	docPS->addPanel(bulletsModule, _("Bullets"));
	docPS->addPanel(preambleModule, _("LaTeX Preamble"));
	docPS->setCurrentPanel(_("Document Class"));

	// preamble
	connect(preambleModule->preambleMLE, SIGNAL(textChanged()), this, SLOT(change_adaptor()));
	// biblio
	connect(biblioModule->natbibCB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(biblioModule->citeStyleCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	// language & quote
	connect(langModule->singleQuoteRB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(langModule->doubleQuoteRB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(langModule->languageCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(langModule->defaultencodingCB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(langModule->encodingCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(langModule->quoteStyleCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	// numbering
	connect(numberingModule->sectionnrDepthSB, SIGNAL(valueChanged(int)), this, SLOT(change_adaptor()));
	connect(numberingModule->tocDepthSB, SIGNAL(valueChanged(int)), this, SLOT(change_adaptor()));
	// maths
	connect(mathsModule->amsCB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(mathsModule->amsautoCB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	// float
	connect(floatModule, SIGNAL(changed()), this, SLOT(change_adaptor()));
	// latex class
	connect(latexModule->classCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(latexModule->optionsLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(latexModule->psdriverCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(latexModule->classCO, SIGNAL(activated(int)), this, SLOT(classChanged()));
	// text layout
	connect(textLayoutModule->fontsCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->fontsizeCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->lspacingCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->lspacingCO, SIGNAL(activated(int)), this, SLOT(setLSpacing(int)));
	connect(textLayoutModule->lspacingLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->skipRB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->indentRB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->skipCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->skipLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->skipLengthCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(textLayoutModule->skipCO, SIGNAL(activated(int)), this, SLOT(setSkip(int)));
	connect(textLayoutModule->skipRB, SIGNAL(toggled(bool)), this, SLOT(enableSkip(bool)));
	connect(textLayoutModule->twoColumnCB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));

	// margins
	connect(marginsModule->marginCO, SIGNAL(activated(int)), this, SLOT(setCustomMargins(int)));
	connect(marginsModule->marginCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(marginsModule->topLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(marginsModule->topUnit, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(marginsModule->bottomLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(marginsModule->bottomUnit, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(marginsModule->innerLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(marginsModule->innerUnit, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(marginsModule->outerLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(marginsModule->outerUnit, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(marginsModule->headheightLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(marginsModule->headheightUnit, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(marginsModule->headsepLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(marginsModule->headsepUnit, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(marginsModule->footskipLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(marginsModule->footskipUnit, SIGNAL(activated(int)), this, SLOT(change_adaptor()));

	// page layout
	connect(pageLayoutModule->papersizeCO, SIGNAL(activated(int)), this, SLOT(setMargins(int)));
	connect(pageLayoutModule->papersizeCO, SIGNAL(activated(int)), this, SLOT(setCustomPapersize(int)));
	connect(pageLayoutModule->papersizeCO, SIGNAL(activated(int)), this, SLOT(setCustomPapersize(int)));
	connect(pageLayoutModule->portraitRB, SIGNAL(toggled(bool)), this, SLOT(portraitChanged()));
	connect(pageLayoutModule->papersizeCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(pageLayoutModule->paperheightLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(pageLayoutModule->paperwidthLE, SIGNAL(textChanged(const QString&)), this, SLOT(change_adaptor()));
	connect(pageLayoutModule->paperwidthUnitCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(pageLayoutModule->paperheightUnitCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(pageLayoutModule->portraitRB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(pageLayoutModule->landscapeRB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(pageLayoutModule->facingPagesCB, SIGNAL(toggled(bool)), this, SLOT(change_adaptor()));
	connect(pageLayoutModule->pagestyleCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));

	// bullets
	connect(bulletsModule->bulletsizeCO, SIGNAL(activated(int)), this, SLOT(change_adaptor()));
	connect(bulletsModule->bulletsLV, SIGNAL(selectionChanged()), this, SLOT(change_adaptor()));
}


QDocumentDialog::~QDocumentDialog()
{
}


void QDocumentDialog::showPreamble()
{
	docPS->setCurrentPanel(_("LaTeX Preamble"));
}


void QDocumentDialog::saveDefaultClicked()
{
	form_->saveDocDefault();
}


void QDocumentDialog::useDefaultsClicked()
{
    form_->useClassDefaults();
}


void QDocumentDialog::change_adaptor()
{
	form_->changed();
}


void QDocumentDialog::closeEvent(QCloseEvent * e)
{
	form_->slotWMHide();
	e->accept();
}


void QDocumentDialog::setLSpacing(int item)
{
	textLayoutModule->lspacingLE->setEnabled(item == 3);
}


void QDocumentDialog::setSkip(int item)
{
	bool const enable = (item == 3);
	textLayoutModule->skipLE->setEnabled(enable);
	textLayoutModule->skipLengthCO->setEnabled(enable);
}


void QDocumentDialog::enableSkip(bool skip)
{
	textLayoutModule->skipCO->setEnabled(skip);
	textLayoutModule->skipLE->setEnabled(skip);
	textLayoutModule->skipLengthCO->setEnabled(skip);
	if (skip)
		setSkip(textLayoutModule->skipCO->currentItem());
}

void QDocumentDialog::portraitChanged()
{
	setMargins(pageLayoutModule->papersizeCO->currentItem());
}

void QDocumentDialog::setMargins(int papersize)
{
	int olditem = marginsModule->marginCO->currentItem();
	marginsModule->marginCO->clear();
	marginsModule->marginCO->insertItem(qt_("Default"));
	marginsModule->marginCO->insertItem(qt_("Custom"));
	bool a4size = (papersize == 6 || papersize == 0
			&& lyxrc.default_papersize == BufferParams::PAPER_A4PAPER);
	if (a4size && pageLayoutModule->portraitRB->isChecked()) {
		marginsModule->marginCO->insertItem(qt_("Small margins"));
		marginsModule->marginCO->insertItem(qt_("Very small margins"));
		marginsModule->marginCO->insertItem(qt_("Very wide margins"));
	} else if (olditem > 1) {
		olditem = 0;
	}
	marginsModule->marginCO->setCurrentItem(olditem);
	setCustomMargins(olditem);
}


void QDocumentDialog::setCustomPapersize(int papersize)
{
	bool const custom = (papersize == 1);

	pageLayoutModule->paperwidthL->setEnabled(custom);
	pageLayoutModule->paperwidthLE->setEnabled(custom);
	pageLayoutModule->paperwidthUnitCO->setEnabled(custom);
	pageLayoutModule->paperheightL->setEnabled(custom);
	pageLayoutModule->paperheightLE->setEnabled(custom);
	pageLayoutModule->paperheightLE->setFocus();
	pageLayoutModule->paperheightUnitCO->setEnabled(custom);
}


void QDocumentDialog::setCustomMargins(int margin)
{
	bool const custom = (margin == 1);

	marginsModule->topL->setEnabled(custom);
	marginsModule->topLE->setEnabled(custom);
	marginsModule->topUnit->setEnabled(custom);

	marginsModule->bottomL->setEnabled(custom);
	marginsModule->bottomLE->setEnabled(custom);
	marginsModule->bottomUnit->setEnabled(custom);

	marginsModule->innerL->setEnabled(custom);
	marginsModule->innerLE->setEnabled(custom);
	marginsModule->innerUnit->setEnabled(custom);

	marginsModule->outerL->setEnabled(custom);
	marginsModule->outerLE->setEnabled(custom);
	marginsModule->outerUnit->setEnabled(custom);

	marginsModule->headheightL->setEnabled(custom);
	marginsModule->headheightLE->setEnabled(custom);
	marginsModule->headheightUnit->setEnabled(custom);

	marginsModule->headsepL->setEnabled(custom);
	marginsModule->headsepLE->setEnabled(custom);
	marginsModule->headsepUnit->setEnabled(custom);

	marginsModule->footskipL->setEnabled(custom);
	marginsModule->footskipLE->setEnabled(custom);
	marginsModule->footskipUnit->setEnabled(custom);

}


void QDocumentDialog::updateFontsize(string const & items, string const & sel)
{
	textLayoutModule->fontsizeCO->clear();
	textLayoutModule->fontsizeCO->insertItem("default");

	for (int n=0; !token(items,'|',n).empty(); ++n)
		textLayoutModule->fontsizeCO->
			insertItem(toqstr(token(items,'|',n)));

	for (int n = 0; n<textLayoutModule->fontsizeCO->count(); ++n) {
		if (fromqstr(textLayoutModule->fontsizeCO->text(n)) == sel) {
			textLayoutModule->fontsizeCO->setCurrentItem(n);
			break;
		}
	}
}


void QDocumentDialog::updatePagestyle(string const & items, string const & sel)
{
	pageLayoutModule->pagestyleCO->clear();
	pageLayoutModule->pagestyleCO->insertItem("default");

	for (int n=0; !token(items,'|',n).empty(); ++n)
		pageLayoutModule->pagestyleCO->
			insertItem(toqstr(token(items,'|',n)));

	for (int n = 0; n<pageLayoutModule->pagestyleCO->count(); ++n) {
		if (fromqstr(pageLayoutModule->pagestyleCO->text(n))==sel) {
			pageLayoutModule->pagestyleCO->setCurrentItem(n);
			break;
		}
	}
}


void QDocumentDialog::classChanged()
{
	ControlDocument & cntrl = form_->controller();
	BufferParams & params = cntrl.params();

	lyx::textclass_type const tc = latexModule->classCO->currentItem();

	if (form_->controller().loadTextclass(tc)) {
		params.textclass = tc;

		if (lyxrc.auto_reset_options) {
			params.useClassDefaults();
			form_->update_contents();
		} else {
			updateFontsize(cntrl.textClass().opt_fontsize(),
				       params.fontsize);

			updatePagestyle(cntrl.textClass().opt_pagestyle(),
					params.pagestyle);
		}
	} else {
		for (int n = 0; n<latexModule->classCO->count(); ++n) {
			if (latexModule->classCO->text(n) ==
			    toqstr(cntrl.textClass().description())) {
				latexModule->classCO->setCurrentItem(n);
				break;
			}
		}
	}
}