void printFontMetrics(const QFont& f)
{
QFontMetrics fm(f);
QFont fi(f);
fi.setItalic(true);
QFontMetrics fm_italic(fi);
QFont fb(f);
fb.setBold(true);
QFontMetrics fm_bold(fb);
QFont fbi(fb);
fbi.setItalic(true);
QFontMetrics fm_boldit(fbi);
// Regular
char err = (fm.averageCharWidth() != fm.maxWidth() ||
fm.width("MM") != fm.maxWidth()*2) ? '!' : ' ';
qStdOut() << err;
qStdOut() << " (Regular) Average char width: " << fm.averageCharWidth();
qStdOut() << " Max char width: " << fm.maxWidth();
qStdOut() << " Width(MM): " << fm.width("MM") << endl;
// Italic
err = (fm_italic.averageCharWidth() != fm_italic.maxWidth() ||
fm_italic.width("MM") != fm_italic.maxWidth()*2 ||
fm_italic.maxWidth() != fm.maxWidth()) ? '!' : ' ';
qStdOut() << err;
qStdOut() << " (Italic) Average char width: " << fm_italic.averageCharWidth();
qStdOut() << " Max char width: " << fm_italic.maxWidth();
qStdOut() << " Width(MM): " << fm_italic.width("MM") << endl;
// Bold
err = (fm_bold.averageCharWidth() != fm_bold.maxWidth() ||
fm_bold.width("MM") != fm_bold.maxWidth()*2 ||
fm_bold.maxWidth() != fm.maxWidth()) ? '!' : ' ';
qStdOut() << err;
qStdOut() << " (Bold) Average char width: " << fm_bold.averageCharWidth();
qStdOut() << " Max char width: " << fm_bold.maxWidth();
qStdOut() << " Width(MM): " << fm_bold.width("MM") << endl;
// BoldItalic
err = (fm_boldit.averageCharWidth() != fm_boldit.maxWidth() ||
fm_boldit.width("MM") != fm_boldit.maxWidth()*2 ||
fm_boldit.maxWidth() != fm.maxWidth()) ? '!' : ' ';
qStdOut() << err;
qStdOut() << " (Bold+It) Average char width: " << fm_boldit.averageCharWidth();
qStdOut() << " Max char width: " << fm_boldit.maxWidth();
qStdOut() << " Width(MM): " << fm_boldit.width("MM") << endl;
}
void AATextItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget){
if (hasFocus()){
QGraphicsTextItem::paint(painter, option, widget);
return;
}
painter->setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing);
QPainterPath path;
QString s = toPlainText();
QTextDocument *doc = document();
qreal margin = doc->documentMargin();
QStringList lines = s.split("\n", QString::SkipEmptyParts);
QFont f = font();
f.setStyleHint(QFont::AnyStyle, QFont::PreferAntialias);
QFontMetrics fm(f);
QFont f_bold = f;
f_bold.setBold(true);
QFontMetrics fm_bold(f_bold);
int line = 0;
for (int i = 0; i < lines.length(); i++){
QString thisline = lines[i];
QStringList s1 = thisline.split(']', QString::SkipEmptyParts);
QStringList s_non_bold, s_bold;
foreach(QString s, s1){
if (!s.contains('[')){
s_non_bold << s;
s_bold << QString();
}
else if (!s.startsWith('[')){
QStringList s2 = s.split('[', QString::SkipEmptyParts);
s_non_bold << s2.first();
s_bold << s2.last();
}
else {
s = s.mid(1);
s_non_bold << QString();
s_bold << s;
}
}
int width = 0;
for (int j = 0; j < s_non_bold.length(); j++){
QString non_bold = s_non_bold[j];
for (int k = 0; k < non_bold.length(); k++){
QChar c = non_bold[k];
QString str = c;
int width_c = fm.width(str);
if (width + width_c > doc->size().width()){
++line;
width = 0;
}
path.addText(margin + width, fm.height() * (line + 1), f, str);
width += width_c;
}
QString bold = s_bold[j];
for (int k = 0; k < bold.length(); k++){
QChar c = bold[k];
QString str = c;
int width_c = fm_bold.width(str);
if (width + width_c > doc->size().width()){
++line;
width = 0;
}
path.addText(margin + width, fm.height() * (line + 1), f_bold, str); //use fm.height not fm_bold.height, for sometimes the bold characters are not as high as the non-bold ones
width += width_c;
}
}
++line;
}
painter->fillPath(path, defaultTextColor());
}
