void Settings::setupGui() {
ui.setupUi(this);
connect(ui.buttonBox, SIGNAL(accepted()), this, SLOT(saveSettings()));
connect(ui.patternEdit, SIGNAL(textChanged(QString)), this, SLOT(changeAddPatternButtonState(QString)));
connect(ui.patternAddButton, SIGNAL(clicked()), this, SLOT(addPattern()));
connect(ui.patternDeleteButton, SIGNAL(clicked()), this, SLOT(deletePattern()));
connect(ui.directoryOpenButton, SIGNAL(clicked()), this, SLOT(addDirectory()));
connect(ui.directoryDeleteButton, SIGNAL(clicked()), this, SLOT(deleteDirectory()));
}
/**
* freeModels
* Guess what
**/
void
freeModels()
{
int i, j;
for ( i = 0; i < 3; i++ )
{
for ( j = 0; j < MAX_PATTERNS; j++ )
if ( models[i][j] != NULL )
deletePattern( models[i][j] );
if ( models[i] != NULL )
free( models[i] );
models[i] = NULL;
}
}
/**
* recognize
* The magic! Given a pattern it returns the ascii that
* it thinks is closest
**/
unsigned char
recognize( Pattern *p )
{
unsigned char ascii;
int mind, tmpd, i, nsamples;
Pattern *np;
/**
* Check for shift-symbol
*/
if ( maxWidth( p ) < 6 )
return '.';
np = apply( preprocessor, p );
calcSlopes( np );
/*
* Do the magic stuff
*/
samples = models[ getBank() ];
nsamples = npatterns[ getBank() ];
unknown = np;
ascii = samples[0]->ascii;
mind = distance( 0 );
for ( i = 1; i < nsamples; i++ )
{
tmpd = distance( i );
if ( tmpd < mind )
{
mind = tmpd;
ascii = samples[i]->ascii;
}
}
/*
* cleanup and return
*/
deletePattern( np );
return ascii;
}
/**
* loadPattern
* Loads a pattern from file filename
* The format of the file is the format used by Rob Kassel
* in his PhD-thesis: A comparison of Approaches to On-line
* Handwritten Character Recognition
**/
Pattern *
loadPattern( char *filename )
{
FILE *fp;
Point po;
int lineno = 0, readingStroke = 0, foundAscii = 0, tmp;
char line[80], ascii = 0, *ptr;
Pattern *p = newPattern( 30, 'a' ), *tp;
if ( p == NULL )
return NULL;
fp = fopen( filename, "r" );
if ( fp == NULL )
return NULL;
while ( fgets( line, 80, fp ) != NULL )
{
lineno++;
if ( strstr( line, ".COMMENT" ) != NULL &&
strstr( line, "Prompt" ) != NULL )
{
ptr = strchr( line, '"' );
if ( ptr == NULL )
{
fprintf( stderr, "Parse error in %s on line %d\n",
filename, lineno );
continue;
}
ascii = ptr[1];
if ( ascii == '#' )
{
sscanf( ptr + 2, "%d", &tmp );
ascii = (char) tmp;
}
foundAscii = 1;
}
if ( !readingStroke )
{
if ( strstr( line, ".PEN_DOWN" ) )
readingStroke = 1;
}
else
{
if ( strlen( line ) > 0 && !isdigit( line[0] ) )
readingStroke = 0;
if ( strlen( line ) > 0 && isdigit( line[0] ) )
{
if ( sscanf( line, "%d %d", &po.x, &po.y ) != 2 )
{
fprintf( stderr, "Parse error in %s on line %d\n",
filename, lineno );
continue;
}
po.y = 3058 - po.y;
addPoint( p, po );
}
}
}
fclose( fp );
if ( !foundAscii || p->nPoints == 0 )
{
deletePattern( p );
p = NULL;
}
else
{
tp = apply( preprocessor, p );
deletePattern( p );
p = tp;
p->ascii = (unsigned char) ascii;
calcSlopes( p );
}
return p;
}
