/**
 * \file QParagraphDialog.C
 * Copyright 2001 LyX Team
 * see the file COPYING
 *
 * \author John Levon, moz@compsoc.man.ac.uk
 * \author Edwin Leuven, leuven@fee.uva.nl
 */

#include <config.h>
#include <gettext.h>
#include <string>

#include "QParagraphDialog.h"
#include "QParagraph.h"
#include "support/lstrings.h"
#include "debug.h"

#include <qlineedit.h>
#include <qcombobox.h>
#include <qcheckbox.h>
#include <qpushbutton.h>
#include <qtabwidget.h>
#include <qlabel.h>
#include <qgroupbox.h>

using std::endl;

QParagraphDialog::QParagraphDialog(QParagraph * form, QWidget * parent,
				   char const * name, bool modal, WFlags fl)
	: QParagraphDialogBase(parent, name, modal, fl),
	  form_(form)
{
	setCaption(name);
}


QParagraphDialog::~QParagraphDialog()
{
}


void QParagraphDialog::setReadOnly(bool readonly)
{
	TabsParagraph->setEnabled(!readonly);
	okPB->setEnabled(!readonly);
	applyPB->setEnabled(!readonly);
	defaultsPB->setEnabled(!readonly);
	cancelPB->setText(readonly ? _("&Close") : _("&Cancel"));
}


void QParagraphDialog::setLabelWidth(char const * text)
{
	// FIXME: should be cleverer here
	if (!strcmp(_("Senseless with this layout!"),text)) {
		listOptions->setEnabled(false);
		labelWidth->setText("");
	} else {
		listOptions->setEnabled(true);
		labelWidth->setText(text);
	}
}


void QParagraphDialog::setAlign(int type)
{
	int item = 0;
	switch (type) {
		case LYX_ALIGN_BLOCK: item = 0; break;
		case LYX_ALIGN_LEFT: item = 1; break;
		case LYX_ALIGN_RIGHT: item = 2; break;
		case LYX_ALIGN_CENTER: item = 3; break;
		default:
			item = 0;
			break;
	}
	alignment->setCurrentItem(item);
}


void QParagraphDialog::setChecks(bool labove, bool lbelow, bool pabove,
				 bool pbelow, bool noindent)
{
	lineAbove->setChecked(labove);
	lineBelow->setChecked(lbelow);
	pagebreakAbove->setChecked(pabove);
	pagebreakBelow->setChecked(pbelow);
	noIndent->setChecked(noindent);
}


void QParagraphDialog::setSpace(VSpace::vspace_kind kindabove,
				VSpace::vspace_kind kindbelow,
				bool keepabove, bool keepbelow)
{
	int item = 0;

	switch (kindabove) {
		case VSpace::NONE: item = 0; break;
		case VSpace::DEFSKIP: item = 1; break;
		case VSpace::SMALLSKIP: item = 2; break;
		case VSpace::MEDSKIP: item = 3; break;
		case VSpace::BIGSKIP: item = 4; break;
		case VSpace::VFILL: item = 5; break;
		case VSpace::LENGTH: item = 6; break;
	}
	spacingAbove->setCurrentItem(item);

	switch (kindbelow) {
		case VSpace::NONE: item = 0; break;
		case VSpace::DEFSKIP: item = 1; break;
		case VSpace::SMALLSKIP: item = 2; break;
		case VSpace::MEDSKIP: item = 3; break;
		case VSpace::BIGSKIP: item = 4; break;
		case VSpace::VFILL: item = 5; break;
		case VSpace::LENGTH: item = 6; break;
	}
	spacingBelow->setCurrentItem(item);

	spacingAboveValue->setEnabled(kindabove == VSpace::LENGTH);
	spacingAbovePlus->setEnabled(kindabove == VSpace::LENGTH);
	spacingAboveMinus->setEnabled(kindabove == VSpace::LENGTH);
	spacingBelowValue->setEnabled(kindbelow == VSpace::LENGTH);
	spacingBelowPlus->setEnabled(kindbelow == VSpace::LENGTH);
	spacingBelowMinus->setEnabled(kindbelow == VSpace::LENGTH);

	spacingAboveKeep->setChecked(keepabove);
	spacingBelowKeep->setChecked(keepbelow);
}


void QParagraphDialog::setAboveLength(float val, float plus, float minus,
				      LyXLength::UNIT vunit,
				      LyXLength::UNIT punit,
				      LyXLength::UNIT munit)
{
	if (vunit == LyXLength::UNIT_NONE) {
		spacingAboveValue->setText("");
		spacingAbovePlus->setText("");
		spacingAboveMinus->setText("");
	} else {
		spacingAboveValue->setText(tostr(val).c_str());
		spacingAbovePlus->setText(tostr(plus).c_str());
		spacingAboveMinus->setText(tostr(minus).c_str());
	}

	spacingAboveValueUnit->setCurrentItem(getItem(vunit));
	spacingAbovePlusUnit->setCurrentItem(getItem(punit));
	spacingAboveMinusUnit->setCurrentItem(getItem(munit));

}


void QParagraphDialog::setBelowLength(float val, float plus, float minus,
				      LyXLength::UNIT vunit,
				      LyXLength::UNIT punit,
				      LyXLength::UNIT munit)
{
	if (vunit == LyXLength::UNIT_NONE) {
		spacingBelowValue->setText("");
		spacingBelowPlus->setText("");
		spacingBelowMinus->setText("");
	} else {
		spacingBelowValue->setText(tostr(val).c_str());
		spacingBelowPlus->setText(tostr(plus).c_str());
		spacingBelowMinus->setText(tostr(minus).c_str());
	}

	spacingBelowValueUnit->setCurrentItem(getItem(vunit));
	spacingBelowPlusUnit->setCurrentItem(getItem(punit));
	spacingBelowMinusUnit->setCurrentItem(getItem(munit));
}


void QParagraphDialog::setExtra(float widthval, LyXLength::UNIT units,
				string const & percent, int align,
				bool hfill, bool startminipage,
				Paragraph::PEXTRA_TYPE type)
{
	if (type != Paragraph::PEXTRA_NONE) {
		lyxerr[Debug::GUI] << "percent : $" << percent << "$ widthval "
				   << widthval << " unit " << long(units)
				   << endl;
		if (percent != "") {
			extraWidth->setText(percent.c_str());
			extraUnit->setCurrentItem(11);
		} else {
			extraWidth->setText(tostr(widthval).c_str());
			extraUnit->setCurrentItem(getItem(units));
		}
	} else
		extraWidth->setText("");

	switch (type) {
		case Paragraph::PEXTRA_NONE:
			extraType->setCurrentItem(0);
			break;
		case Paragraph::PEXTRA_MINIPAGE:
			extraType->setCurrentItem(1);
			enable_extraOptions(1);
			enable_minipageOptions(1);
			break;
		case Paragraph::PEXTRA_FLOATFLT:
			extraType->setCurrentItem(2);
			enable_extraOptions(2);
			break;
		case Paragraph::PEXTRA_INDENT:
			extraType->setCurrentItem(3);
			enable_extraOptions(3);
			break;
	}

	switch (align) {
		case Paragraph::MINIPAGE_ALIGN_TOP:
			minipageValign->setCurrentItem(0);
			break;
		case Paragraph::MINIPAGE_ALIGN_MIDDLE:
			minipageValign->setCurrentItem(1);
			break;
		case Paragraph::MINIPAGE_ALIGN_BOTTOM:
			minipageValign->setCurrentItem(2);
			break;
	}

	minipageHfill->setChecked(hfill);
	minipageStart->setChecked(startminipage);
}


LyXGlueLength QParagraphDialog::getAboveLength() const
{
	LyXGlueLength len(
		LyXLength(spacingAboveValue->text().toFloat(),
		getLyXLength(spacingAboveValueUnit->currentItem())),
		LyXLength(spacingAbovePlus->text().toFloat(),
		getLyXLength(spacingAbovePlusUnit->currentItem())),
		LyXLength(spacingAboveMinus->text().toFloat(),
		getLyXLength(spacingAboveMinusUnit->currentItem()))
		);
	return len;
}


LyXGlueLength QParagraphDialog::getBelowLength() const
{
	LyXGlueLength len(
		LyXLength(spacingBelowValue->text().toFloat(),
		getLyXLength(spacingBelowValueUnit->currentItem())),
		LyXLength(spacingBelowPlus->text().toFloat(),
		getLyXLength(spacingBelowPlusUnit->currentItem())),
		LyXLength(spacingBelowMinus->text().toFloat(),
		getLyXLength(spacingBelowMinusUnit->currentItem()))
		);
	return len;
}


LyXLength QParagraphDialog::getExtraWidth() const
{
	if (extraUnit->currentItem() != 11) {
		LyXLength len(
			 (extraWidth->text()).toDouble(),
			 getLyXLength(extraUnit->currentItem())
			 );
		return len;
	} else {
		LyXLength len(0.0, LyXLength::UNIT_NONE);
		return len;
	}
}


string QParagraphDialog::getExtraWidthPercent() const
{
	double val = (extraWidth->text()).toDouble();
	if (val > 100.0)
		val = 100.0;
	if (val < 0.0)
		val = 0.0;
	return tostr(val);
}


char const * QParagraphDialog::getLabelWidth() const
{
	return labelWidth->text();
}


LyXAlignment QParagraphDialog::getAlign() const
{
	switch (alignment->currentItem()) {
		case 0: return LYX_ALIGN_BLOCK;
		case 1: return LYX_ALIGN_LEFT;
		case 2: return LYX_ALIGN_RIGHT;
		case 3: return LYX_ALIGN_CENTER;
		default: return LYX_ALIGN_CENTER;
	}
}


bool QParagraphDialog::getAboveKeep() const
{
	return spacingAboveKeep->isChecked();
}


bool QParagraphDialog::getBelowKeep() const
{
	return spacingBelowKeep->isChecked();
}


bool QParagraphDialog::getLineAbove() const
{
	return lineAbove->isChecked();
}


bool QParagraphDialog::getLineBelow() const
{
	return lineBelow->isChecked();
}


bool QParagraphDialog::getPagebreakAbove() const
{
	return pagebreakAbove->isChecked();
}


bool QParagraphDialog::getPagebreakBelow() const
{
	return pagebreakBelow->isChecked();
}


bool QParagraphDialog::getNoIndent() const
{
	return noIndent->isChecked();
}


VSpace::vspace_kind QParagraphDialog::getSpaceAboveKind() const
{
	return getSpaceKind(spacingAbove->currentItem());
}


VSpace::vspace_kind QParagraphDialog::getSpaceBelowKind() const
{
	return getSpaceKind(spacingBelow->currentItem());
}


Paragraph::PEXTRA_TYPE QParagraphDialog::getExtraType() const
{
	switch (extraType->currentItem()) {
		case 0: return Paragraph::PEXTRA_NONE;
		case 1: return Paragraph::PEXTRA_MINIPAGE;
		case 2: return Paragraph::PEXTRA_FLOATFLT;
		case 3: return Paragraph::PEXTRA_INDENT;
	}
	return Paragraph::PEXTRA_NONE;
}


Paragraph::MINIPAGE_ALIGNMENT QParagraphDialog::getExtraAlign() const
{
	switch (minipageValign->currentItem()) {
		case 0: return Paragraph::MINIPAGE_ALIGN_TOP;
		case 1: return Paragraph::MINIPAGE_ALIGN_MIDDLE;
		case 2: return Paragraph::MINIPAGE_ALIGN_BOTTOM;
		default: return Paragraph::MINIPAGE_ALIGN_BOTTOM;
	}
}


bool QParagraphDialog::getHfillBetween() const
{
	return minipageHfill->isChecked();
}


bool QParagraphDialog::getStartNewMinipage() const
{
	return minipageStart->isChecked();
}


VSpace::vspace_kind QParagraphDialog::getSpaceKind(int val) const
{
	switch (val) {
		case 0: return VSpace::NONE;
		case 1: return VSpace::DEFSKIP;
		case 2: return VSpace::SMALLSKIP;
		case 3: return VSpace::MEDSKIP;
		case 4: return VSpace::BIGSKIP;
		case 5: return VSpace::VFILL;
		case 6: return VSpace::LENGTH;
		default:
			lyxerr[Debug::GUI] << "Unknown kind combo entry "
					   << val << std::endl;
		}
	return VSpace::NONE;
}


LyXLength::UNIT QParagraphDialog::getLyXLength(int val) const
{
	switch (val) {
		case 0: return LyXLength::CM;
		case 1: return LyXLength::IN;
		case 2: return LyXLength::PT;
		case 3: return LyXLength::MM;
		case 4: return LyXLength::PC;
		case 5: return LyXLength::EX;
		case 6: return LyXLength::EM;
		case 7: return LyXLength::SP;
		case 8: return LyXLength::BP;
		case 9: return LyXLength::DD;
		case 10: return LyXLength::CC;
		default:
			lyxerr[Debug::GUI] << "Unknown kind combo entry "
					   << val << std::endl;
	}
	return LyXLength::UNIT_NONE;
}


int QParagraphDialog::getItem(LyXLength::UNIT unit) const
{
	int item = 0;
	switch (unit) {
		case LyXLength::CM: item = 0; break;
		case LyXLength::IN: item = 1; break;
		case LyXLength::PT: item = 2; break;
		case LyXLength::MM: item = 3; break;
		case LyXLength::PC: item = 4; break;
		case LyXLength::EX: item = 5; break;
		case LyXLength::EM: item = 6; break;
		case LyXLength::SP: item = 7; break;
		case LyXLength::BP: item = 8; break;
		case LyXLength::DD: item = 9; break;
		case LyXLength::CC: item = 10; break;
		case LyXLength::MU: item = 0; break;
		case LyXLength::UNIT_NONE: item = 0; break;
		default:
			lyxerr[Debug::GUI] << "Unknown unit " << long(unit)
					   << endl;
	}
	return item;
}


void QParagraphDialog::enable_extraOptions(int item)
{
	bool const enable = (item != 0);
	extraWidth->setEnabled(enable);
	extraWidthL->setEnabled(enable);
	extraUnit->setEnabled(enable);
	extraUnitL->setEnabled(enable);
}


void QParagraphDialog::enable_minipageOptions(int item)
{
	minipageOptions->setEnabled( item == 1 );
}


void QParagraphDialog::enable_spacingAbove(int item)
{
	bool const enable = (item == 6);
	spacingAboveValue->setEnabled(enable);
	spacingAbovePlus->setEnabled(enable);
	spacingAboveMinus->setEnabled(enable);
	spacingAboveValueUnit->setEnabled(enable);
	spacingAbovePlusUnit->setEnabled(enable);
	spacingAboveMinusUnit->setEnabled(enable);
	spacingAboveUnitsL->setEnabled(enable);
	bool const enablel = ( (item == 6) || (item != 6 && spacingBelow->currentItem() == 6) );
	spacingValueL->setEnabled(enablel);
	spacingPlusL->setEnabled(enablel);
	spacingMinusL->setEnabled(enablel);
}


void QParagraphDialog::enable_spacingBelow(int item)
{
	bool const enable = (item == 6);
	spacingBelowValue->setEnabled(enable);
	spacingBelowPlus->setEnabled(enable);
	spacingBelowMinus->setEnabled(enable);
	spacingBelowValueUnit->setEnabled(enable);
	spacingBelowPlusUnit->setEnabled(enable);
	spacingBelowMinusUnit->setEnabled(enable);
	spacingBelowUnitsL->setEnabled(enable);
	bool const enablel = ( (item == 6) || (item!=6 && spacingAbove->currentItem() == 6) );
	spacingValueL->setEnabled(enablel);
	spacingPlusL->setEnabled(enablel);
	spacingMinusL->setEnabled(enablel);
}


void QParagraphDialog::closeEvent(QCloseEvent * e)
{
	form_->close();
	e->accept();
}


void QParagraphDialog::apply_adaptor()
{
	form_->apply();
}


void QParagraphDialog::cancel_adaptor()
{
	form_->close();
	hide();
}


void QParagraphDialog::ok_adaptor()
{
	apply_adaptor();
	form_->close();
	hide();
}


void QParagraphDialog::restore_adaptor()
{
	form_->update();
}