model_multipart* reader::load_from_file(const std::string &name) const
{
std::ifstream file;
file.open((m_basepath + name).c_str(), std::ios::in);
if (!file.is_open())
throw exception(__func__, exception::user_error, std::string("Could not open file for reading: ") + name);
model_multipart *model = load_from_stream(file, name);
file.close();
return model;
}
model_multipart* reader::load_from_file(const std::string &name) const
{
std::ifstream file;
std::string filename = m_basepath + name;
struct stat buffer;
if (stat(filename.c_str(), &buffer) != 0)
throw exception(__func__, exception::user_error, std::string("Could not open file for reading: ") + name);
file.open(filename.c_str(), std::ios::in);
model_multipart *model = load_from_stream(file, name);
file.close();
return model;
}
void load(GraphType& g, std::string prefix,
line_parser_type<GraphType> line_parser) {
if (prefix.length() == 0)
return;
g.dc().full_barrier();
g.clear();
std::string directory_name; std::string original_path(prefix);
boost::filesystem::path path(prefix);
std::string search_prefix;
if (boost::filesystem::is_directory(path)) {
// if this is a directory
// force a "/" at the end of the path
// make sure to check that the path is non-empty. (you do not
// want to make the empty path "" the root path "/" )
directory_name = path.native();
} else {
directory_name = path.parent_path().native();
search_prefix = path.filename().native();
directory_name = (directory_name.empty() ? "." : directory_name);
}
std::vector<std::string> graph_files;
fs_util::list_files_with_prefix(directory_name, search_prefix, graph_files);
if (graph_files.size() == 0) {
logstream(LOG_WARNING) << "No files found matching " << original_path << std::endl;
}
parallel_for(0, graph_files.size(), [&](size_t i) {
if (i % g.numprocs() == g.procid()) {
logstream(LOG_EMPH) << "Loading graph from file: " << graph_files[i] << std::endl;
general_ifstream fin(graph_files[i]);
if(!fin.good()) {
log_and_throw_io_failure("Cannot open file: " + graph_files[i]);
}
const bool success = load_from_stream(g, graph_files[i], fin, line_parser);
if(!success) {
log_and_throw_io_failure("Fail parsing file: " + graph_files[i]);
}
}
});
g.dc().full_barrier();
g.finalize();
} // end of load
GthImage *
gth_pixbuf_new_from_file (GInputStream *istream,
GthFileData *file_data,
int requested_size,
int *original_width,
int *original_height,
gboolean *loaded_original,
gboolean scale_to_original,
GCancellable *cancellable,
GError **error)
{
ScaleData scale_data;
GdkPixbufLoader *pixbuf_loader;
GdkPixbuf *pixbuf;
GthImage *image;
gboolean original_size_rotated = FALSE;
if (original_width != NULL)
*original_width = -1;
if (original_height != NULL)
*original_height = -1;
scale_data.requested_size = requested_size;
scale_data.original_width = -1;
scale_data.original_height = -1;
scale_data.loader_width = -1;
scale_data.loader_height = -1;
pixbuf_loader = gdk_pixbuf_loader_new ();
g_signal_connect (pixbuf_loader,
"size-prepared",
G_CALLBACK (pixbuf_loader_size_prepared_cb),
&scale_data);
pixbuf = load_from_stream (pixbuf_loader, istream, requested_size, cancellable, error);
g_object_unref (pixbuf_loader);
if ((pixbuf != NULL) && scale_to_original) {
GdkPixbuf *tmp;
tmp = _gdk_pixbuf_scale_simple_safe (pixbuf, scale_data.original_width, scale_data.original_height, GDK_INTERP_NEAREST);
g_object_unref (pixbuf);
pixbuf = tmp;
}
if ((original_width != NULL) && (original_height != NULL)) {
if (file_data != NULL) {
char *path;
path = g_file_get_path (file_data->file);
if (path != NULL) {
gdk_pixbuf_get_file_info (path, &scale_data.original_width, &scale_data.original_height);
original_size_rotated = TRUE;
g_free (path);
}
}
}
if (pixbuf != NULL) {
GdkPixbuf *rotated;
rotated = gdk_pixbuf_apply_embedded_orientation (pixbuf);
if (rotated != NULL) {
if (! original_size_rotated) {
/* swap width and height */
int tmp = scale_data.original_width;
scale_data.original_width = scale_data.original_height;
scale_data.original_height =tmp;
}
g_object_unref (pixbuf);
pixbuf = rotated;
}
}
image = gth_image_new ();
if (pixbuf != NULL) {
cairo_surface_t *surface;
cairo_surface_metadata_t *metadata;
surface = _cairo_image_surface_create_from_pixbuf (pixbuf);
metadata = _cairo_image_surface_get_metadata (surface);
metadata->original_width = scale_data.original_width;
metadata->original_height = scale_data.original_height;
metadata->has_alpha = gdk_pixbuf_get_has_alpha (pixbuf);
gth_image_set_cairo_surface (image, surface);
}
if (original_width != NULL)
*original_width = scale_data.original_width;
if (original_height != NULL)
*original_height = scale_data.original_height;
if (loaded_original != NULL)
*loaded_original = (pixbuf != NULL) && (scale_data.original_width == gdk_pixbuf_get_width (pixbuf)) && (scale_data.original_height == gdk_pixbuf_get_height (pixbuf));
_g_object_unref (pixbuf);
return image;
}
GthImage *
gth_pixbuf_new_from_file (GInputStream *istream,
GthFileData *file_data,
int requested_size,
int *original_width,
int *original_height,
gboolean scale_to_original,
GCancellable *cancellable,
GError **error)
{
ScaleData scale_data;
GdkPixbufLoader *pixbuf_loader;
GdkPixbuf *pixbuf;
GthImage *image;
if (original_width != NULL)
*original_width = -1;
if (original_height != NULL)
*original_height = -1;
scale_data.requested_size = requested_size;
scale_data.original_width = -1;
scale_data.original_height = -1;
scale_data.loader_width = -1;
scale_data.loader_height = -1;
pixbuf_loader = gdk_pixbuf_loader_new ();
g_signal_connect (pixbuf_loader,
"size-prepared",
G_CALLBACK (pixbuf_loader_size_prepared_cb),
&scale_data);
pixbuf = load_from_stream (pixbuf_loader, istream, requested_size, cancellable, error);
g_object_unref (pixbuf_loader);
if ((pixbuf != NULL) && scale_to_original) {
GdkPixbuf *tmp;
tmp = _gdk_pixbuf_scale_simple_safe (pixbuf, scale_data.original_width, scale_data.original_height, GDK_INTERP_NEAREST);
g_object_unref (pixbuf);
pixbuf = tmp;
}
if (pixbuf != NULL) {
GdkPixbuf *rotated;
rotated = gdk_pixbuf_apply_embedded_orientation (pixbuf);
if (rotated != NULL) {
scale_data.original_width = gdk_pixbuf_get_width (rotated);
scale_data.original_height = gdk_pixbuf_get_height (rotated);
g_object_unref (pixbuf);
pixbuf = rotated;
}
}
image = gth_image_new_for_pixbuf (pixbuf);
if (original_width != NULL)
*original_width = scale_data.original_width;
if (original_height != NULL)
*original_height = scale_data.original_height;
_g_object_unref (pixbuf);
return image;
}
