/****************************************************************************
 *                                                                          *
 *   Copyright (C) 2005  Michael Buesch <mbuesch@freenet.de>                *
 *                                                                          *
 *   This program is free software; you can redistribute it and/or modify   *
 *   it under the terms of the GNU General Public License version 2         *
 *   as published by the Free Software Foundation.                          *
 *                                                                          *
 *   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. Additionally a copy of the                    *
 *   GNU General Public License is available here:                          *
 *   http://passwordmanager.sourceforge.net/gplv2.txt                       *
 *   http://www.gnu.org/licenses/gpl.txt                                    *
 *                                                                          *
 ****************************************************************************/

#include "regtrack.h"
#include "advanced.h"

#include <qlabel.h>
#include <qpushbutton.h>
#include <qmessagebox.h>

#define CONTEXT_COLUMN	0

/***************************************************************************
 *  class ContextItem
 ***************************************************************************/

ContextItem::ContextItem(ContextList *_parent,
			 const QString &name,
			 int _pos)
 : QListViewItem (_parent, name)
 , parent (_parent)
 , pos (_pos)
{
	setRenameEnabled(CONTEXT_COLUMN, true);
}

ContextItem::~ContextItem()
{
}


/***************************************************************************
 *  class ContextList
 ***************************************************************************/

ContextList::ContextList(AdvancedWidget *_adv,
			 const char *name,
			 WFlags f)
 : QListView (_adv, name, f)
 , adv (_adv)
{
	addColumn("Context");
	setDefaultRenameAction(Accept);
	connect(this, SIGNAL(doubleClicked(QListViewItem *, const QPoint &, int)),
		this, SLOT(itemDoubleClicked(QListViewItem *, const QPoint &, int)));
	connect(this, SIGNAL(mouseButtonClicked(int, QListViewItem *, const QPoint &, int)),
		this, SLOT(itemClicked(int, QListViewItem *, const QPoint &, int)));
	connect(this, SIGNAL(itemRenamed(QListViewItem *, int, const QString &)),
		this, SLOT(itemRenamed(QListViewItem *, int, const QString &)));
}

ContextList::~ContextList()
{
}

void ContextList::itemDoubleClicked(QListViewItem *_item,
				    const QPoint &/*point*/,
				    int /*column*/)
{
	ContextItem *item = dynamic_cast<ContextItem *>(_item);
	if (!item)
		return;
	item->startRename(CONTEXT_COLUMN);
}

void ContextList::itemClicked(int button,
			      QListViewItem *_item,
			      const QPoint &/*pos*/,
			      int /*column*/)
{
	ContextItem *item = dynamic_cast<ContextItem *>(_item);
	if (!item)
		return;
	if (button == Qt::MidButton)
		adv->rt->clipboardPut(item->text(CONTEXT_COLUMN));
}

void ContextList::itemRenamed(QListViewItem *_item,
			      int /*column*/,
			      const QString &text)
{
	ContextItem *item = dynamic_cast<ContextItem *>(_item);
	if (!item)
		return;
	adv->rt->getContext()->renameContext(item->getPos(), text);
	adv->updateContextList();
}


/***************************************************************************
 *  class AdvancedWidget
 ***************************************************************************/

AdvancedWidget::AdvancedWidget(RegTrack *_rt,
			       const char *name,
			       WFlags f)
 : QWidget (_rt, name, f)
 , rt (_rt)
{
	QHBoxLayout *h;
	QVBoxLayout *v;

	layout = new QVBoxLayout(this);

	// Context
	layout->addSpacing(4);
	h = new QHBoxLayout(layout);
	context = new ContextList(this);
	h->addWidget(context);
	v = new QVBoxLayout(h);
	contextClone = new QPushButton("Clone", this);
	v->addWidget(contextClone);
	contextDel = new QPushButton("Delete", this);
	v->addWidget(contextDel);

	// Buttons
	layout->addSpacing(10);
	h = new QHBoxLayout(layout);
	loadButton = new QPushButton("Load from file...", this);
	h->addWidget(loadButton);
	saveButton = new QPushButton("Save to file...", this);
	h->addWidget(saveButton);

	// Connections
	connect(loadButton, SIGNAL(clicked()),
		this, SLOT(loadClicked()));
	connect(saveButton, SIGNAL(clicked()),
		this, SLOT(saveClicked()));
	connect(contextClone, SIGNAL(clicked()),
		this, SLOT(contextCloneClicked()));
	connect(contextDel, SIGNAL(clicked()),
		this, SLOT(contextDelClicked()));
	connect(context, SIGNAL(currentChanged(QListViewItem *)),
		this, SLOT(contextSelected(QListViewItem *)));
}

AdvancedWidget::~AdvancedWidget()
{
}

void AdvancedWidget::show()
{
	updateContextList();
	QWidget::show();
}

void AdvancedWidget::saveClicked()
{
	rt->saveFile();
}

void AdvancedWidget::loadClicked()
{
	rt->loadFile();
	updateContextList();
}

void AdvancedWidget::contextCloneClicked()
{
	ContextItem *item = dynamic_cast<ContextItem *>(context->currentItem());
	if (!item)
		return;
	int index = item->getPos();
	QString name = rt->context->name(index);

	name += " (clone)";
	rt->context->cloneContext(index, name);
	updateContextList();
}

void AdvancedWidget::contextDelClicked()
{
	ContextItem *item = dynamic_cast<ContextItem *>(context->currentItem());
	if (!item)
		return;
	if (rt->context->count() == 1)
		return;
	int res;
	res = QMessageBox::question(this,
				    "Delete Context?",
				    QString(
				    "Do you really want to delete the \"%1\" Context?")
				    .arg(rt->context->name(item->getPos())),
				    QMessageBox::Yes, QMessageBox::No);
	if (res != QMessageBox::Yes)
		return;
	rt->context->deleteContext(item->getPos());
	updateContextList();
}

void AdvancedWidget::updateContextList()
{
	int i, cnt;
	ContextItem *item, *selected = 0;

	context->clear();
	cnt = rt->context->count();
	for (i = 0; i < cnt; i++) {
		item = new ContextItem(context,
				       rt->context->name(i), i);
		if (i == rt->context->current())
			selected = item;
	}
	context->setSelected(selected, true);
}

void AdvancedWidget::contextSelected(QListViewItem *_item)
{
	ContextItem *item = dynamic_cast<ContextItem *>(_item);
	if (!item)
		return;
	rt->context->switchContext(item->getPos());
}