void tst_Q3ValueVector::at()
{
Q3ValueVector<int> a;
a.push_back( 1 );
a.push_back( 2 );
bool ok;
QVERIFY( a.at( 0, &ok ) == 1 && ok == true );
QVERIFY( a.at( 1, &ok ) == 2 && ok == true );
(void)a.at( 3, &ok );
QCOMPARE( ok, false );
}
void renderCode128(OROPage * page, const QRectF & r, const QString & _str, int align)
{
Q3ValueVector<int> str;
int i = 0;
// create the list.. if the list is empty then just set a start code and move on
if(_str.isEmpty())
str.push_back(104);
else
{
int rank_a = 0;
int rank_b = 0;
int rank_c = 0;
QChar c;
for(i = 0; i < _str.length(); i++)
{
c = _str.at(i);
rank_a += (code128Index(c, SETA) != -1 ? 1 : 0);
rank_b += (code128Index(c, SETB) != -1 ? 1 : 0);
rank_c += (c >= '0' && c <= '9' ? 1 : 0);
}
if(rank_c == _str.length() && ((rank_c % 2) == 0 || rank_c > 4))
{
// every value in the is a digit so we are going to go with mode C
// and we have an even number or we have more than 4 values
i = 0;
if((rank_c % 2) == 1)
{
str.push_back(104); // START B
c = _str.at(0);
str.push_back(code128Index(c, SETB));
str.push_back(99); // MODE C
i = 1;
}
else
str.push_back(105); // START C
for(i = i; i < _str.length(); i+=2)
{
char a, b;
c = _str.at(i);
a = c.toAscii();
a -= 48;
c = _str.at(i+1);
b = c.toAscii();
b -= 48;
str.push_back(int((a * 10) + b));
}
}
else
{
// start in the mode that had the higher number of hits and then
// just shift into the opposite mode as needed
int set = ( rank_a > rank_b ? SETA : SETB );
str.push_back(( rank_a > rank_b ? 103 : 104 ));
int v = -1;
for(i = 0; i < _str.length(); i++)
{
c = _str.at(i);
v = code128Index(c, set);
if(v == -1)
{
v = code128Index(c, (set == SETA ? SETB : SETA));
if(v != -1)
{
str.push_back(98); // SHIFT
str.push_back(v);
}
}
else
str.push_back(v);
}
}
}
// calculate and append the checksum value to the list
int checksum = str.at(0);
for(i = 1; i < str.size(); i++)
checksum += (str.at(i) * i);
checksum = checksum % 103;
str.push_back(checksum);
// lets determine some core attributes about this barcode
qreal bar_width = 0.01; // the width of the base unit bar 1/100 inch
// this is are mandatory minimum quiet zone
qreal quiet_zone = bar_width * 10;
if(quiet_zone < 0.1)
quiet_zone = 0.1;
// what kind of area do we have to work with
qreal draw_width = r.width();
qreal draw_height = r.height();
// how long is the value we need to encode?
int val_length = str.size() - 2; // we include start and checksum in are list so
// subtract them out for our calculations
// L = (11C + 35)X
// L length of barcode (excluding quite zone) in units same as X and I
// C the number of characters in the value excluding the start/stop and checksum characters
// X the width of a bar (pixels in our case)
qreal L;
qreal C = val_length;
qreal X = bar_width;
L = (((11.0 * C) + 35.0) * X);
// now we have the actual width the barcode will be so can determine the actual
// size of the quiet zone (we assume we center the barcode in the given area
// what should we do if the area is too small????
// At the moment the way the code is written is we will always start at the minimum
// required quiet zone if we don't have enough space.... I guess we'll just have over-run
// to the right
//
// calculate the starting position based on the alignment option
// for left align we don't need to do anything as the values are already setup for it
if(align == 1) // center
{
qreal nqz = (draw_width - L) / 2.0;
if(nqz > quiet_zone)
quiet_zone = nqz;
}
else if(align > 1) // right
quiet_zone = draw_width - (L + quiet_zone);
// else if(align < 1) {} // left : do nothing
qreal pos = r.left() + quiet_zone;
qreal top = r.top();
QPen pen(Qt::NoPen);
QBrush brush(QColor("black"));
bool space = false;
int idx = 0, b = 0;
qreal w = 0.0;
for(i = 0; i < str.size(); i++)
{
// loop through each value and render the barcode
idx = str.at(i);
if(idx < 0 || idx > 105)
{
qDebug("Encountered a non-compliant element while rendering a 3of9 barcode -- skipping");
continue;
}
space = false;
for(b = 0; b < 6; b++, space = !space)
{
w = _128codes[idx].values[b] * bar_width;
if(!space)
{
ORORect * rect = new ORORect();
rect->setPen(pen);
rect->setBrush(brush);
rect->setRect(QRectF(pos,top, w,draw_height));
page->addPrimitive(rect);
}
pos += w;
}
}
// we have to do the stop character seperatly like this because it has
// 7 elements in it's bar sequence rather than 6 like the others
int STOP_CHARACTER[]={ 2, 3, 3, 1, 1, 1, 2 };
space = false;
for(b = 0; b < 7; b++, space = !space)
{
w = STOP_CHARACTER[b] * bar_width;
if(!space)
{
ORORect * rect = new ORORect();
rect->setPen(pen);
rect->setBrush(brush);
rect->setRect(QRectF(pos,top, w,draw_height));
page->addPrimitive(rect);
}
pos += w;
}
return;
}