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/********************************************************************
* Copyright (C) 2005, 2006 Piotr Pszczolkowski
*-------------------------------------------------------------------
* This file is part of BSCommander (Beesoft Commander).
*
* BsC 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.
*
* BsC 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 BsC; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*******************************************************************/
/*------- include files:
-------------------------------------------------------------------*/
#include "Editor.h"
#include "Shared.h"
#include "Busy.h"
#include "Shared.h"
#include "Config.h"
#include <qtextedit.h>
#include <qpushbutton.h>
#include <qlayout.h>
#include <qapplication.h>
#include <qdesktopwidget.h>
#include <qfile.h>
#include <qmessagebox.h>
/*------- local constants:
-------------------------------------------------------------------*/
const QString Editor::CAPTION = QT_TR_NOOP( "Editor" );
const QString Editor::MSG_READ_ERROR = QT_TR_NOOP( "Reading failure %1:\n%2" );
const QString Editor::MSG_SAVE_ERROR = QT_TR_NOOP( "Saving failure %1:\n%2" );
const QString Editor::MSG_FILE_MODIFIED = QT_TR_NOOP( "File: %1\nis modified. Maybe you first save ?" );
//*******************************************************************
// Editor CONSTRUCTOR
//*******************************************************************
Editor::Editor( QWidget* const in_parent, const QString& in_fname )
: QDialog ( in_parent )
, d_editor ( new QTextEdit( this ))
, d_reload_btn( new QPushButton( tr(Shared::ReloadBtnLabel), this ))
, d_save_btn ( new QPushButton( tr(Shared::SaveBtnLabel), this ))
, d_return_btn( new QPushButton( tr(Shared::CloseBtnLabel), this ))
, d_fname ( in_fname )
{
setCaption( tr(CAPTION) );
setFont( Config::instance()->lfs_default_font() );
set_edit_config();
read_file();
Shared::add_icon( d_reload_btn, Shared::ReloadIcon );
Shared::add_icon( d_save_btn , Shared::SaveIcon );
Shared::add_icon( d_return_btn, Shared::CloseIcon );
connect( d_reload_btn, SIGNAL( clicked() ), this, SLOT( reload() ));
connect( d_save_btn , SIGNAL( clicked() ), this, SLOT( save () ));
connect( d_return_btn, SIGNAL( clicked() ), this, SLOT( accept() ));
QVBoxLayout* const main_layout = new QVBoxLayout( this );
main_layout->setMargin( Shared::LayoutMargin );
main_layout->setSpacing( Shared::LayoutSpacing );
main_layout->addWidget( d_editor );
QHBoxLayout* const btn_layout = new QHBoxLayout;
btn_layout->addStretch( Shared::OverStretch );
btn_layout->addWidget( d_reload_btn );
btn_layout->addWidget( d_save_btn );
btn_layout->addWidget( d_return_btn );
main_layout->addLayout( btn_layout );
}
// end of Editor
//*******************************************************************
// polish PRIVATE inherited
//*******************************************************************
void Editor::polish()
{
Shared::polish( this, 60, 75 );
}
// end of polish
//*******************************************************************
// set_edit_config PRIVATE
//*******************************************************************
void Editor::set_edit_config()
{
d_editor->setPaletteBackgroundColor( Config::instance()->lfs_default_bkg_color() );
d_editor->setWordWrap( QTextEdit::NoWrap );
QFontMetrics fm( font() );
d_editor->setTabStopWidth( 3 * fm.width( "X" ));
}
// end of set_edit_config
//********************************************************************
// read_file
//********************************************************************
bool Editor::read_file()
{
bool retval = TRUE;
QFile file( d_fname );
if( file.open( IO_ReadOnly ) ) {
QTextStream in( &file );
Busy::set_busy( TRUE );
d_editor->setText( in.read() );
Busy::set_busy( FALSE );
file.close();
}
else {
QMessageBox::warning( this, tr(CAPTION), tr(MSG_READ_ERROR).arg( file.name() ).arg( file.errorString() ));
retval = FALSE;
}
return retval;
}
// end of read_file
//********************************************************************
// save_file PRIVATE
//********************************************************************
bool Editor::save_file()
{
bool retval = TRUE;
QFile file( d_fname );
if( file.open( IO_WriteOnly ) ) {
QTextStream out( &file );
Busy::set_busy( TRUE );
out << d_editor->text();
Busy::set_busy( FALSE );
file.close();
}
else {
QMessageBox::warning( this, tr(CAPTION), tr(MSG_SAVE_ERROR).arg( file.name() ).arg( file.errorString() ));
retval = FALSE;
}
return retval;
}
// end of save_file
//*******************************************************************
// reload PRIVATE
//*******************************************************************
void Editor::reload()
{
d_editor->clear();
read_file();
}
// end of reload
//*******************************************************************
// save PRIVATE
//*******************************************************************
void Editor::save()
{
save_file();
d_editor->setModified( FALSE );
}
// end of save
//*******************************************************************
// accept PRIVATE
//*******************************************************************
void Editor::accept()
{
bool can_exit = TRUE;
if( TRUE == d_editor->isModified() ) {
const int retval = QMessageBox::warning( this, tr(CAPTION),
tr(MSG_FILE_MODIFIED).arg( d_fname ),
tr(Shared::NoBtnLabel),
tr(Shared::YesBtnLabel),
tr(Shared::CancelBtnLabel), 2 );
if( 1 == retval ) save_file();
else if( 2 == retval ) can_exit = FALSE;
}
if( TRUE == can_exit ) {
QDialog::accept();
}
}
// end of accept
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