bool
PolarGlue::LoadFromFile(PolarInfo &polar, NLineReader &reader)
{
const char *line;
while ((line = reader.ReadLine()) != nullptr)
if (ParsePolar(polar, line))
return true;
return false;
}
unsigned
FlarmNetReader::LoadFile(NLineReader &reader, FlarmNetDatabase &database)
{
/* skip first line */
const char *line = reader.ReadLine();
if (line == NULL)
return 0;
int itemCount = 0;
while ((line = reader.ReadLine()) != NULL) {
FlarmNetRecord record;
if (LoadRecord(record, line)) {
database.Insert(record);
itemCount++;
}
}
return itemCount;
}
static bool
ReadLine(NLineReader &reader, double &value_r)
{
const char *line = reader.ReadLine(); // x scale
if (line == nullptr)
return false;
char *endptr;
double value = ParseDouble(line, &endptr);
if (endptr == line)
return false;
value_r = value;
return true;
}
static bool
FixGRecord(NLineReader &reader, TextWriter &writer)
{
GRecord grecord;
grecord.Initialize();
char digest[GRecord::DIGEST_LENGTH + 1];
grecord.GetDigest(digest);
char *line;
while ((line = reader.ReadLine()) != nullptr) {
if (line[0] == 'G')
break;
if (memcmp(line, "HFFTYFRTYPE:XCSOAR,XCSOAR ", 26) == 0) {
char *v = strstr(line + 25, " 6.5 ");
if (v != nullptr) {
static char buffer[1024], *p = buffer;
size_t n = v + 4 - line;
memcpy(p, line, n);
p += n;
memcpy(p, "fix", 3);
p += 3;
strcpy(p, v + 4);
line = buffer;
}
}
grecord.AppendRecordToBuffer(line);
if (!writer.WriteLine(line))
return false;
}
grecord.FinalizeBuffer();
grecord.WriteTo(writer);
return true;
}
bool
ParseFileRepository(FileRepository &repository, NLineReader &reader)
{
AvailableFile file;
file.Clear();
char *line;
while ((line = reader.ReadLine()) != NULL) {
line = const_cast<char *>(TrimLeft(line));
if (*line == 0 || *line == '#')
continue;
const char *name = line, *value = ParseLine(line);
if (value == NULL)
return false;
if (StringIsEqual(name, "name")) {
if (!Commit(repository, file))
return false;
file.name.assign(value);
} else if (file.IsEmpty()) {
/* ignore */
} else if (StringIsEqual(name, "uri")) {
file.uri.assign(value);
} else if (StringIsEqual(name, "area")) {
file.area = value;
} else if (StringIsEqual(name, "type")) {
if (StringIsEqual(value, "airspace"))
file.type = AvailableFile::Type::AIRSPACE;
else if (StringIsEqual(value, "waypoint"))
file.type = AvailableFile::Type::WAYPOINT;
else if (StringIsEqual(value, "map"))
file.type = AvailableFile::Type::MAP;
else if (StringIsEqual(value, "flarmnet"))
file.type = AvailableFile::Type::FLARMNET;
}
}
return Commit(repository, file);
}
void
TopographyStore::Load(OperationEnvironment &operation, NLineReader &reader,
const TCHAR *directory, struct zzip_dir *zdir)
{
Reset();
// Create buffer for the shape filenames
// (shape_filename will be modified with the shape_filename_end pointer)
char shape_filename[MAX_PATH];
if (directory != nullptr) {
const WideToACPConverter narrow_directory(directory);
strcpy(shape_filename, narrow_directory);
strcat(shape_filename, DIR_SEPARATOR_S);
} else
shape_filename[0] = 0;
char *shape_filename_end = shape_filename + strlen(shape_filename);
// Read file size to have a rough progress estimate for the progress bar
const long filesize = std::max(reader.GetSize(), 1l);
// Set progress bar to 100 steps
operation.SetProgressRange(100);
// Iterate through shape files in the "topology.tpl" file until
// end or max. file number reached
char *line;
while (!files.full() && (line = reader.ReadLine()) != nullptr) {
// .tpl Line format: filename,range,icon,field,r,g,b,pen_width,label_range,important_range,alpha
// Ignore comments (lines starting with *) and empty lines
if (StringIsEmpty(line) || line[0] == '*')
continue;
// Find first comma to extract shape filename
char *p = strchr(line, ',');
if (p == nullptr || p == line)
// If no comma was found -> ignore this line/shapefile
continue;
if (HasLittleMemory()) {
/* hard-coded blacklist for huge files on PPC2000; those
devices usually have very little memory */
// Null-terminate the line string after the first comma
// for strcmp() calls in IsHugeTopographyFile() function
*p = 0;
// Skip large topography files
if (IsHugeTopographyFile(line))
continue;
}
// Extract filename and append it to the shape_filename buffer
memcpy(shape_filename_end, line, p - line);
// Append ".shp" file extension to the shape_filename buffer
strcpy(shape_filename_end + (p - line), ".shp");
// Parse shape range
fixed shape_range = fixed(strtod(p + 1, &p)) * 1000;
if (*p != _T(','))
continue;
// Extract shape icon name
char icon_name[23];
char *start = p + 1;
p = strchr(start, ',');
// Null-terminate the line string at the next comma for strncpy() call
*p = 0;
strncpy(icon_name, start, 22);
ResourceId icon = ResourceId::Null(), big_icon = ResourceId::Null();
if (strlen(icon_name) > 0) {
const LOOKUP_ICON *ip = icon_list;
while (ip->name != nullptr) {
if (StringIsEqual(ip->name, icon_name)) {
icon = ip->resource_id;
big_icon = ip->big_resource_id;
break;
}
ip++;
}
}
// Parse shape field for text display
long shape_field = strtol(p + 1, &p, 10) - 1;
if (*p != _T(','))
continue;
// Parse red component of line / shading colour
uint8_t red = (uint8_t)strtol(p + 1, &p, 10);
if (*p != _T(','))
continue;
// Parse green component of line / shading colour
uint8_t green = (uint8_t)strtol(p + 1, &p, 10);
if (*p != _T(','))
continue;
// Parse blue component of line / shading colour
uint8_t blue = (uint8_t)strtol(p + 1, &p, 10);
// Parse pen width of lines
unsigned pen_width = 1;
if (*p == _T(',')) {
pen_width = strtoul(p + 1, &p, 10);
if (pen_width < 1)
pen_width = 1;
else if (pen_width>31)
pen_width=31;
}
// Parse range for displaying labels
fixed label_range = shape_range;
if (*p == _T(','))
label_range = fixed(strtod(p + 1, &p)) * 1000;
// Parse range for displaying labels with "important" rendering style
fixed labelImportantRange = fixed(0);
if (*p == _T(','))
labelImportantRange = fixed(strtod(p + 1, &p)) * 1000;
// Handle alpha component
// If not present at all (i.e. v6.6 or earlier file), default to 100% opaque
uint8_t alpha = 255;
if (*p == _T(',')) {
// An alpha component of shading colour is present (v6.7 or later file).
alpha = (uint8_t)strtol(p + 1, &p, 10);
// Ignore a totally transparent file!
if (alpha == 0)
continue;
#ifndef ENABLE_OPENGL
// Without OpenGL ignore anything but 100% opaque
if (alpha != 255)
continue;
#endif
}
// Create TopographyFile instance from parsed line
TopographyFile *file = new TopographyFile(zdir, shape_filename,
shape_range, label_range,
labelImportantRange,
#ifdef ENABLE_OPENGL
Color(red, green, blue, alpha),
#else
Color(red, green, blue),
#endif
shape_field, icon, big_icon,
pen_width);
if (file->IsEmpty())
// If the shape file could not be read -> skip this line/file
delete file;
else
// .. otherwise append it to our list of shape files
files.append(file);
// Update progress bar
operation.SetProgressPosition((reader.Tell() * 100) / filesize);
}
}