/*
 * Copyright (C) 2003 Fredrik Höglund <fredrik@kde.org>
 *
 * Based on the large cursor code written by Rik Hemsley,
 * Copyright (c) 2000 Rik Hemsley <rik@kde.org>
 *
 * 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; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include <kglobal.h>
#include <kstandarddirs.h>
#include <kurl.h>
#include <kprocess.h>
#include <kio/job.h>
#include <kio/netaccess.h>
#include <kmessagebox.h>
#include <klocale.h>
#include <kconfig.h>
#include <kdialog.h>

#include <QBoxLayout>
#include <QDir>
#include <QLabel>
#include <QPixmap>

#include "themepage.h"
#include <QTreeWidget>
#include "themepage.moc"

#include "bitmaps.h"



ThemePage::ThemePage( QWidget* parent, const char* name )
	: QWidget( parent )
{
	setObjectName(name);
	QBoxLayout *layout = new QVBoxLayout( this );
	layout->setMargin( KDialog::marginHint() );
	layout->setSpacing( KDialog::spacingHint() );

	layout->addWidget(new QLabel( i18n("Select the cursor theme you want to use:"), this ));

	// Create the theme list view
	listview = new QTreeWidget( this );
        QStringList lstHeader;
        lstHeader<<i18n("Name")<<i18n("Description");
        listview->setHeaderLabels( lstHeader );
        listview->setSelectionMode( QAbstractItemView::SingleSelection );
        listview->setRootIsDecorated( false );
        connect( listview, SIGNAL(currentItemChanged ( QTreeWidgetItem *, QTreeWidgetItem *) )
                 , this, SLOT( selectionChanged( QTreeWidgetItem*, QTreeWidgetItem* ) ) );
        layout->addWidget( listview );
	insertThemes();
}


ThemePage::~ThemePage()
{
}


void ThemePage::selectionChanged( QTreeWidgetItem*current,QTreeWidgetItem*previous )
{
    Q_UNUSED( previous );
    selectedTheme = current->data( 0, Qt::UserRole + 1 ).toString();
    emit changed( selectedTheme != currentTheme );
}


void ThemePage::save()
{
	if ( currentTheme == selectedTheme )
		return;

	bool whiteCursor = selectedTheme.right( 5 ) == "White";
	bool largeCursor = selectedTheme.left( 5 ) == "Large";

	KConfig config( "kcminputrc" );
	KConfigGroup c( &config, "Mouse" );
	c.writeEntry( "LargeCursor", largeCursor );
	c.writeEntry( "WhiteCursor", whiteCursor );

	currentTheme = selectedTheme;

	fixCursorFile();

	KMessageBox::information( this, i18n("You have to restart KDE for these "
				"changes to take effect."), i18n("Cursor Settings Changed"),
				"CursorSettingsChanged" );
}


void ThemePage::load()
{
	bool largeCursor, whiteCursor;

	KConfig config( "kcminputrc" );
	KConfigGroup c( &config, "Mouse" );
	largeCursor = c.readEntry( "LargeCursor", false);
	whiteCursor = c.readEntry( "WhiteCursor", false);

	if ( largeCursor )
		currentTheme = whiteCursor ? "LargeWhite" : "LargeBlack";
	else
		currentTheme = whiteCursor ? "SmallWhite" : "SmallBlack";

	selectedTheme = currentTheme;
        for ( int i = 0;i <listview->topLevelItemCount();++i )
        {
            QTreeWidgetItem *item = listview->topLevelItem( i );
            if ( item && item->data(0, Qt::UserRole + 1 ) == currentTheme )
            {
                listview->setCurrentItem( item );
            }
        }
}


void ThemePage::defaults()
{
	currentTheme = selectedTheme = "SmallBlack";
        for ( int i = 0;i <listview->topLevelItemCount();++i )
        {
            QTreeWidgetItem *item = listview->topLevelItem( i );
            if ( item && item->data(0, Qt::UserRole + 1 ) == currentTheme )
            {
                listview->setCurrentItem( item );
            }
        }
}


void ThemePage::insertThemes()
{
    QList<QTreeWidgetItem *> lstChildren;
    QTreeWidgetItem *item = new QTreeWidgetItem(listview );

    item->setData( 0, Qt::DisplayRole,i18n("Small black")  );
    item->setData( 1, Qt::DisplayRole, i18n("Small black cursors") );
    item->setData( 0, Qt::DecorationRole, QPixmap( arrow_small_black_xpm ) );
    item->setData( 0, Qt::UserRole + 1,"SmallBlack" );
    lstChildren<<item;

    item = new QTreeWidgetItem(listview );
    item->setData( 0, Qt::DisplayRole, i18n("Large black") );
    item->setData( 1, Qt::DisplayRole, i18n("Large black cursors") );
    item->setData( 0, Qt::DecorationRole, QPixmap( arrow_large_black_xpm ) );
    item->setData( 0, Qt::UserRole + 1,"LargeBlack"  );
    lstChildren<<item;

    item = new QTreeWidgetItem(listview );
    item->setData( 0, Qt::DisplayRole, i18n("Small white") );
    item->setData( 1, Qt::DisplayRole, i18n("Small white cursors") );
    item->setData( 0, Qt::DecorationRole, QPixmap(arrow_small_white_xpm  ) );
    item->setData( 0, Qt::UserRole + 1,"SmallWhite" );
    lstChildren<<item;

    item = new QTreeWidgetItem(listview );
    item->setData( 0, Qt::DisplayRole, i18n("Large white") );
    item->setData( 1, Qt::DisplayRole, i18n("Large white cursors") );
    item->setData( 0, Qt::DecorationRole, QPixmap( arrow_large_white_xpm ) );
    item->setData( 0, Qt::UserRole + 1, "LargeWhite" );
    lstChildren<<item;

    listview->addTopLevelItems( lstChildren );
}


void ThemePage::fixCursorFile()
{
	// Make sure we have the 'font' resource dir registered and can find the
	// override dir.
	//
	// Next, if the user wants large cursors, copy the font
	// cursor_large.pcf.gz to (localkdedir)/share/fonts/override/cursor.pcf.gz.
	// Else remove the font cursor.pcf.gz from (localkdedir)/share/fonts/override.
	//
	// Run mkfontdir to update fonts.dir in that dir.

	KGlobal::dirs()->addResourceType( "font", 0, "share/fonts/" );
	KIO::mkdir( QDir::homePath() + "/.fonts/kde-override" );
	QString overrideDir = QDir::homePath() + "/.fonts/kde-override/";

	KUrl installedFont;
	installedFont.setPath( overrideDir + "cursor.pcf.gz" );

	if ( currentTheme == "SmallBlack" )
		KIO::NetAccess::del( installedFont, this );
	else {
		KUrl source;

		if ( currentTheme == "LargeBlack" )
			source.setPath( KStandardDirs::locate("data", "kcminput/cursor_large_black.pcf.gz") );
		else if ( currentTheme == "LargeWhite" )
			source.setPath( KStandardDirs::locate("data", "kcminput/cursor_large_white.pcf.gz") );
		else if ( currentTheme == "SmallWhite" )
			source.setPath( KStandardDirs::locate("data", "kcminput/cursor_small_white.pcf.gz") );

		KIO::Job* job = KIO::file_copy( source, installedFont, -1, KIO::Overwrite );
		job->exec();
	}

	QString cmd = KGlobal::dirs()->findExe( "mkfontdir" );
	if ( !cmd.isEmpty() )
	{
		KProcess p;
		p << cmd << overrideDir;
		p.execute();
	}
}

// vim: set noet ts=4 sw=4:
