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Initial porting of some core files from VALA/gtk+ to C++/Qt.

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Jim Evins
2013-10-14 22:19:24 -04:00
parent 96d46a6bd5
commit 27e791212d
22 changed files with 4393 additions and 0 deletions
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app/TextNode.cpp
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/* TextNode.cpp
*
* Copyright (C) 2013 Jim Evins <evins@snaught.com>
*
* This file is part of qtLabels.
*
* qtLabels 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 3 of the License, or
* (at your option) any later version.
*
* qtLabels 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 qtLabels. If not, see <http://www.gnu.org/licenses/>.
*/
#include "TextNode.h"
namespace {
typedef enum {
START,
LITERAL,
LITERAL_DOLLAR,
START_DOLLAR,
FIELD,
DONE
} State;
}
namespace qtLabels
{
TextNode::TextNode( const QString &text, int i_start, int &i_next )
{
State state = START;
QString literal_text;
QString field_name;
bool field_flag = false;
int i = i_start;
while ( state != DONE )
{
QChar c = text[i];
switch (state) {
case START:
switch (c.unicode()) {
case '$':
/* May be start of a field node. */
i++;
state = START_DOLLAR;
break;
case '\n':
state = DONE;
break;
case 0:
state = DONE;
break;
default:
/* Start a literal text node. */
literal_text.append( c );
i++;
state = LITERAL;
break;
}
break;
case LITERAL:
switch (c.unicode()) {
case '$':
/* May be the beginning of a field node. */
i++;
state = LITERAL_DOLLAR;
break;
case '\n':
state = DONE;
break;
case 0:
state = DONE;
break;
default:
literal_text.append( c );
i++;
state = LITERAL;
break;
}
break;
case LITERAL_DOLLAR:
switch (c.unicode()) {
case '{':
/* "${" indicates the start of a new field node, gather for literal too. */
literal_text.append( '$' );
i++;
state = DONE;
break;
case '\n':
/* Append "$" to literal text, don't gather newline. */
literal_text.append( '$' );
i++;
state = DONE;
break;
case 0:
/* Append "$" to literal text, don't gather null. */
literal_text.append( '$' );
i++;
state = DONE;
break;
default:
/* Append "$" to literal text, gather this character too. */
literal_text.append( '$' );
literal_text.append( c );
i+=2;
state = LITERAL;
break;
}
break;
case START_DOLLAR:
switch (c.unicode()) {
case '{':
/* This is probably the begining of a field node, gather for literal too. */
literal_text.append( c );
i++;
state = FIELD;
break;
case '\n':
state = DONE;
break;
case 0:
state = DONE;
break;
default:
/* The "$" was literal. */
literal_text.append( c );
i++;
state = LITERAL;
break;
}
break;
case FIELD:
switch (c.unicode()) {
case '}':
/* We now finally know that this node is really field node. */
field_flag = true;
i++;
state = DONE;
break;
case '\n':
state = DONE;
break;
case 0:
state = DONE;
break;
default:
/* Gather for field name and literal, just in case. */
field_name.append( c );
literal_text.append( c );
i++;
state = FIELD;
break;
}
break;
}
}
m_field_flag = field_flag;
m_data = field_flag ? field_name : literal_text;
i_next = i;
}
#if TODO
public string expand( MergeRecord? record )
{
if ( field_flag )
{
if ( record == null )
{
return "${%s}".printf( data );
}
else
{
string? text = record.eval_key( data );
if ( text != null )
{
return text;
}
else
{
return "";
}
}
}
else
{
return data;
}
}
public bool is_empty_field( MergeRecord? record )
{
if ( (record !=null) && field_flag )
{
string? text = record.eval_key( data );
return ( (text == null) || (text == "") );
}
else
{
return false;
}
}
#endif
}