File: Editor.cpp

package info (click to toggle)
bsc 2.27-4
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 1,644 kB
  • ctags: 2,610
  • sloc: cpp: 14,104; perl: 114; makefile: 46
file content (194 lines) | stat: -rw-r--r-- 6,573 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
/********************************************************************
 * 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