/**
* Load a palette from a GIMP palette file.
*
* The file format is:
*
* GIMP Palette
* *HEADER FIELDS*
* # one or more comment
* r g b name
* ...
*
* @param filename palette file name
* @param writeprotected is the source file read only
*/
Palette *Palette::fromFile(const QFileInfo& file, bool readonly, QObject *parent)
{
QFile palfile(file.absoluteFilePath());
if (!palfile.open(QIODevice::ReadOnly | QIODevice::Text))
return nullptr;
QTextStream in(&palfile);
if(in.readLine() != "GIMP Palette")
return nullptr;
Palette *pal = new Palette(file.baseName(), file.absoluteFilePath(), !file.isWritable() | readonly, parent);
const QRegularExpression colorRe("^(\\d+)\\s+(\\d+)\\s+(\\d+)\\s*(.+)?$");
do {
QString line = in.readLine().trimmed();
if(line.isEmpty() || line.at(0) == '#') {
// ignore comments and empty lines
} else if(line.startsWith("Name:")) {
pal->_name = line.mid(5).trimmed();
} else if(line.startsWith("Columns:")) {
bool ok;
int cols = line.mid(9).trimmed().toInt(&ok);
if(ok && cols>0)
pal->_columns = cols;
} else {
QRegularExpressionMatch m = colorRe.match(line);
if(m.hasMatch()) {
pal->_colors.append(PaletteColor(
QColor(
m.captured(1).toInt(),
m.captured(2).toInt(),
m.captured(3).toInt()
),
m.captured(4)
)
);
} else {
qWarning() << "unhandled line" << line << "in" << file.fileName();
}
}
} while(!in.atEnd());
// Palettes loaded from file are write-protected by default
pal->_writeprotect = true;
return pal;
}
/**
* Load a palette from a GIMP palette file.
*
* The file format is:
*
* GIMP Palette
* *HEADER FIELDS*
* # one or more comment
* r g b name
* ...
*
* @param filename palette file name
*/
Palette Palette::fromFile(const QFileInfo& file)
{
QFile palfile(file.absoluteFilePath());
if (!palfile.open(QIODevice::ReadOnly | QIODevice::Text))
return Palette();
QTextStream in(&palfile);
if(in.readLine() != "GIMP Palette")
return Palette();
Palette pal(file.baseName(), file.fileName());
const QRegularExpression colorRe("^(\\d+)\\s+(\\d+)\\s+(\\d+)\\s*(.+)?$");
do {
QString line = in.readLine().trimmed();
if(line.isEmpty() || line.at(0) == '#') {
// ignore comments and empty lines
} else if(line.startsWith("Name:")) {
pal._name = line.mid(5).trimmed();
} else if(line.startsWith("Columns:")) {
bool ok;
int cols = line.mid(9).trimmed().toInt(&ok);
if(ok && cols>0)
pal._columns = cols;
} else {
QRegularExpressionMatch m = colorRe.match(line);
if(m.hasMatch()) {
pal.appendColor(
QColor(
m.captured(1).toInt(),
m.captured(2).toInt(),
m.captured(3).toInt()
),
m.captured(4)
);
} else {
qWarning() << "unhandled line" << line << "in" << file.fileName();
}
}
} while(!in.atEnd());
return pal;
}
