RS_Block* RS_Font::generateLffFont(const QString& ch){
if(rawLffFontList.contains(ch) == false ){
RS_DEBUG->print("RS_Font::generateLffFont(QChar %s ) : can not find the letter in given lff font file",qPrintable(ch));
return nullptr;
}
// create new letter:
RS_FontChar* letter =
new RS_FontChar(nullptr, ch, RS_Vector(0.0, 0.0));
// Read entities of this letter:
QStringList vertex;
QStringList coords;
QStringList fontData=rawLffFontList[ch];
QString line;
while(fontData.isEmpty() == false) {
line = fontData.takeFirst();
if (line.isEmpty()) {
continue;
}
// Defined char:
if (line.at(0)=='C') {
line.remove(0,1);
int uCode = line.toInt(nullptr, 16);
QChar ch = QChar(uCode);
RS_Block* bk = letterList.find(ch);
if (!bk && rawLffFontList.contains(ch)) {
generateLffFont(ch);
bk = letterList.find(ch);
}
if (bk) {
RS_Entity* bk2 = bk->clone();
bk2->setPen(RS_Pen(RS2::FlagInvalid));
bk2->setLayer(nullptr);
letter->addEntity(bk2);
}
}
//sequence:
else {
vertex = line.split(';', QString::SkipEmptyParts);
//at least is required two vertex
if (vertex.size()<2)
continue;
RS_Polyline* pline = new RS_Polyline(letter, RS_PolylineData());
pline->setPen(RS_Pen(RS2::FlagInvalid));
pline->setLayer(nullptr);
for (int i = 0; i < vertex.size(); ++i) {
double x1, y1;
double bulge = 0;
coords = vertex.at(i).split(',', QString::SkipEmptyParts);
//at least X,Y is required
if (coords.size()<2)
continue;
x1 = coords.at(0).toDouble();
y1 = coords.at(1).toDouble();
//check presence of bulge
if (coords.size() == 3 && coords.at(2).at(0) == QChar('A')){
QString bulgeStr = coords.at(2);
bulge = bulgeStr.remove(0,1).toDouble();
}
pline->setNextBulge(bulge);
pline->addVertex(RS_Vector(x1, y1), bulge);
}
letter->addEntity(pline);
}
}
if (letter->isEmpty()) {
delete letter;
return nullptr;
} else {
letter->calculateBorders();
letterList.add(letter);
return letter;
}
}
void RS_Font::readLFF(QString path) {
QString line;
QFile f(path);
encoding = "UTF-8";
f.open(QIODevice::ReadOnly);
QTextStream ts(&f);
// Read line by line until we find a new letter:
while (!ts.atEnd()) {
line = ts.readLine();
if (line.isEmpty())
continue;
// Read font settings:
if (line.at(0)=='#') {
QStringList lst =line.remove(0,1).split(':', QString::SkipEmptyParts);
//if size is < 2 is a comentary not parameter
if (lst.size()<2)
continue;
QString identifier = lst.at(0).trimmed();
QString value = lst.at(1).trimmed();
if (identifier.toLower()=="letterspacing") {
letterSpacing = value.toDouble();
} else if (identifier.toLower()=="wordspacing") {
wordSpacing = value.toDouble();
} else if (identifier.toLower()=="linespacingfactor") {
lineSpacingFactor = value.toDouble();
} else if (identifier.toLower()=="author") {
authors.append(value);
} else if (identifier.toLower()=="name") {
names.append(value);
} else if (identifier.toLower()=="license") {
fileLicense = value;
} else if (identifier.toLower()=="encoding") {
ts.setCodec(QTextCodec::codecForName(value.toLatin1()));
encoding = value;
}
}
// Add another letter to this font:
else if (line.at(0)=='[') {
// uniode character:
QChar ch;
// read unicode:
QRegExp regexp("[0-9A-Fa-f]{4,4}");
regexp.indexIn(line);
QString cap = regexp.cap();
if (!cap.isNull()) {
int uCode = cap.toInt(NULL, 16);
ch = QChar(uCode);
}
// only unicode allowed
else {
continue;
}
// create new letter:
RS_FontChar* letter =
new RS_FontChar(NULL, ch, RS_Vector(0.0, 0.0));
// Read entities of this letter:
QStringList vertex;
QStringList coords;
do {
line = ts.readLine();
if (line.isEmpty()) {
continue;
}
// Defined char:
if (line.at(0)=='C') {
line.remove(0,1);
int uCode = line.toInt(NULL, 16);
QChar ch = QChar(uCode);
RS_Block* bk = letterList.find(ch);
if (bk != NULL) {
RS_Entity* bk2 = bk->clone();
bk2->setPen(RS_Pen(RS2::FlagInvalid));
bk2->setLayer(NULL);
letter->addEntity(bk2);
}
}
//sequence:
else {
vertex = line.split(';', QString::SkipEmptyParts);
//at least is required two vertex
if (vertex.size()<2)
continue;
RS_Polyline* pline = new RS_Polyline(letter, RS_PolylineData());
pline->setPen(RS_Pen(RS2::FlagInvalid));
pline->setLayer(NULL);
for (int i = 0; i < vertex.size(); ++i) {
double x1, y1;
double bulge = 0;
coords = vertex.at(i).split(',', QString::SkipEmptyParts);
//at least X,Y is required
if (coords.size()<2)
continue;
x1 = coords.at(0).toDouble();
y1 = coords.at(1).toDouble();
//check presence of bulge
if (coords.size() == 3 && coords.at(2).at(0) == QChar('A')){
QString bulgeStr = coords.at(2);
bulge = bulgeStr.remove(0,1).toDouble();
pline->setNextBulge(bulge);
}
pline->addVertex(RS_Vector(x1, y1), bulge);
}
letter->addEntity(pline);
}
} while (!line.isEmpty());
letter->calculateBorders();
letterList.add(letter);
}
}
f.close();
}
