/*
    Klat - A LaTeX editor for KDE
    
    Copyright (C) 2002-2004  Jori Liesenborgs (jori@lumumba.luc.ac.be)

    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "klatexecsettingsdlgimpl.h"
#include "klatexecsettingsdlgimpl.moc"
#include "klateditcommanddlgimpl.h"
#include <qpushbutton.h>
#include <qlistview.h>

KlatExecSettingsDlgImpl::KlatExecSettingsDlgImpl(QWidget *parent,const char *name) : KlatExecSettingsDlg(parent,name,true)
{
	QObject::connect(addButton,SIGNAL(clicked()),this,SLOT(slotAdd()));
	QObject::connect(editButton,SIGNAL(clicked()),this,SLOT(slotEdit()));
	QObject::connect(deleteButton,SIGNAL(clicked()),this,SLOT(slotDelete()));
	QObject::connect(okButton,SIGNAL(clicked()),this,SLOT(accept()));
	QObject::connect(upButton,SIGNAL(clicked()),this,SLOT(slotUp()));
	QObject::connect(downButton,SIGNAL(clicked()),this,SLOT(slotDown()));
	QObject::connect(addSepButton,SIGNAL(clicked()),this,SLOT(slotAddSeparator()));
	QObject::connect(cancelButton,SIGNAL(clicked()),this,SLOT(reject()));
	commandList->setSorting(-1);
	commandList->setSelectionMode(QListView::Single);
}

KlatExecSettingsDlgImpl::~KlatExecSettingsDlgImpl()
{
}

int KlatExecSettingsDlgImpl::exec()
{
	buildList();
	return KlatExecSettingsDlg::exec();
}

void KlatExecSettingsDlgImpl::slotAdd()
{
	KlatEditCommandDlgImpl dlg(this);
	
	if (dlg.exec() != QDialog::Accepted)
		return;
	
	addMenuEntry(dlg.menuName(),dlg.commandLine(),dlg.saveFirst(),dlg.shortcut());
}

void KlatExecSettingsDlgImpl::slotAddSeparator()
{
	QString dummy;

	addMenuEntry(dummy,dummy,false,KShortcut());
}

#define SAVEFIRSTYES		"Yes"
#define SAVEFIRSTNO		"No"
#define SEPARATOR		"--------"

void KlatExecSettingsDlgImpl::slotEdit()
{
	QListViewItem *item = commandList->selectedItem();
	int pos;

	if (!item)
		return;
	
	pos = getItemIndex(item);
	cfg.gotoEntry(pos);
	
	if (cfg.menuName().length() == 0) // it's a separator
		return;

	KlatEditCommandDlgImpl dlg(this);
	
	dlg.setMenuName(cfg.menuName());
	dlg.setCommandLine(cfg.commandLine());
	dlg.setSaveFirst(cfg.saveFirst());
	dlg.setShortcut(cfg.shortcut());
	
	if (dlg.exec() != QDialog::Accepted)
		return;

	QString menuname,cmdLine,savestr;
	KShortcut cut;
	bool savefirst;
	
	menuname = dlg.menuName();
	cmdLine = dlg.commandLine();
	savefirst = dlg.saveFirst();
	cut = dlg.shortcut();
	
	if (savefirst)
		savestr = SAVEFIRSTYES;
	else
		savestr = SAVEFIRSTNO;
	
	item->setText(0,menuname);
	item->setText(1,cut.toString());
	item->setText(2,savestr);
	item->setText(3,cmdLine);

	cfg.changeCurrent(KlatExecMenuEntry(menuname,cmdLine,savefirst,cut));
}

void KlatExecSettingsDlgImpl::slotDelete()
{
	QListViewItem *item = commandList->selectedItem();
	int pos;
	
	if (!item)
		return;
	
	pos = getItemIndex(item);
	cfg.gotoEntry(pos);
	cfg.deleteCurrent();
	
	delete item;
	commandList->clearSelection();	
}

void KlatExecSettingsDlgImpl::slotUp()
{
	QListViewItem *item = commandList->selectedItem();
	QListViewItem *prev;
	int pos;

	if (!item)
		return;
	if ((prev = item->itemAbove()) == 0)
		return;

	pos = getItemIndex(item);	
	
	if (prev->itemAbove() != 0)
		item->moveItem(prev->itemAbove());
	else
	{
		commandList->takeItem(item);
		commandList->insertItem(item);
	}
	commandList->setSelected(item,true);
	
	cfg.gotoEntry(pos);
	KlatExecMenuEntry e = cfg.entry();
	cfg.deleteCurrent();
	cfg.gotoEntry(pos-2);
	cfg.insertAfterCurrent(e);
}

void KlatExecSettingsDlgImpl::slotDown()
{
	QListViewItem *item = commandList->selectedItem();
	QListViewItem *next;
	int pos;

	if (!item)
		return;
	if ((next = item->itemBelow()) == 0)
		return;

	pos = getItemIndex(item);	
	
	item->moveItem(next);
	commandList->setSelected(item,true);
	
	cfg.gotoEntry(pos);
	KlatExecMenuEntry e = cfg.entry();
	cfg.deleteCurrent();
	cfg.gotoEntry(pos);
	cfg.insertAfterCurrent(e);
}

void KlatExecSettingsDlgImpl::buildList()
{
	QListViewItem *previtem,*item;
	
	previtem = 0;
	commandList->clear();
	if (!cfg.gotoFirstEntry())
		return;
	do 
	{
		QString menuname,cmdline,savefirst;
		KShortcut cut;

		if (cfg.menuName().length() == 0)
			menuname = SEPARATOR;
		else
		{
			menuname = cfg.menuName();
			cmdline = cfg.commandLine();
			if (cfg.saveFirst())
				savefirst = SAVEFIRSTYES;
			else
				savefirst = SAVEFIRSTNO;
			cut = cfg.shortcut();
		}
		item = new QListViewItem(commandList,previtem);
		item->setText(0,menuname);
		item->setText(1,cut.toString());
		item->setText(2,savefirst);
		item->setText(3,cmdline);
		previtem = item;
	} while (cfg.gotoNextEntry());
}

int KlatExecSettingsDlgImpl::getSelectedPosition()
{
	QListViewItem *item = commandList->selectedItem();
	if (!item)
		return -1;
	return getItemIndex(item);
}

int KlatExecSettingsDlgImpl::getItemIndex(QListViewItem *item)
{
	QListViewItem *tmp;
	int index = 0;
	bool found = false;
	
	tmp = commandList->firstChild();
	while (!found && tmp != 0)
	{
		if (tmp == item)
			found = true;
		else
		{
			tmp = tmp->itemBelow();
			index++;
		}
	}
	if (!found)
		return -1;
	return index;
}

void KlatExecSettingsDlgImpl::addMenuEntry(const QString &menuname,const QString &cmdLine,bool savefirst,const KShortcut &shortcut)
{
	QString savestr;	
	QListViewItem *item,*previtem;
	int pos;

	if (savefirst)
		savestr = SAVEFIRSTYES;
	else
		savestr = SAVEFIRSTNO;

	pos = getSelectedPosition();
	cfg.gotoEntry(pos);
	cfg.insertAfterCurrent(KlatExecMenuEntry(menuname,cmdLine,savefirst,shortcut));

	if (pos < 0) // insert at the beginning
		previtem = 0;
	else
		previtem = commandList->selectedItem();

	item = new QListViewItem(commandList,previtem);

	if (menuname.length() == 0)
		item->setText(0,SEPARATOR);
	else
	{
		item->setText(0,menuname);
		item->setText(1,shortcut.toString());
		item->setText(2,savestr);
		item->setText(3,cmdLine);
	}
	commandList->setSelected(item,true);
}