gds-render/layer/layer-settings.c

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/*
* GDSII-Converter
* Copyright (C) 2019 Mario Hüttel <mario.huettel@gmx.net>
*
* This file is part of GDSII-Converter.
*
* GDSII-Converter is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* GDSII-Converter is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GDSII-Converter. If not, see <http://www.gnu.org/licenses/>.
*/
/**
2019-09-28 22:57:31 +02:00
* @file layer-settings.c
* @brief Implementation of the LayerSettings class
* @author Mario Hüttel <mario.huettel@gmx.net>
*/
#include <gds-render/layer/layer-settings.h>
#include <stdlib.h>
struct _LayerSettings {
GObject parent;
GList *layer_infos;
gpointer padding[12];
};
G_DEFINE_TYPE(LayerSettings, layer_settings, G_TYPE_OBJECT)
static void layer_settings_init(LayerSettings *self)
{
self->layer_infos = NULL;
}
static void layer_info_delete_with_name(struct layer_info *const info)
{
if (!info)
return;
if (info->name)
free(info->name);
free(info);
}
static void layer_settings_dispose(GObject *obj)
{
LayerSettings *self;
self = GDS_RENDER_LAYER_SETTINGS(obj);
if (self->layer_infos) {
g_list_free_full(self->layer_infos, (GDestroyNotify)layer_info_delete_with_name);
self->layer_infos = NULL;
}
G_OBJECT_CLASS(layer_settings_parent_class)->dispose(obj);
}
static void layer_settings_class_init(LayerSettingsClass *klass)
{
GObjectClass *oclass;
oclass = G_OBJECT_CLASS(klass);
oclass->dispose = layer_settings_dispose;
return;
}
/**
* @brief Copy layer_info struct
*
* This function copies a layer info struct.
*
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* @note Be aware, that it does not only copy the pointer to the
* layer name, but instead duplicates the string.
* @param info Info to copy
* @return new layer_info struct
*/
static struct layer_info *layer_info_copy(const struct layer_info * const info)
{
struct layer_info *copy;
if (!info)
return 0;
copy = (struct layer_info *)malloc(sizeof(struct layer_info));
if (!copy)
return 0;
/* Copy data */
memcpy(copy, info, sizeof(struct layer_info));
/* Duplicate string */
if (info->name)
copy->name = strdup(info->name);
return copy;
}
LayerSettings *layer_settings_new()
{
return g_object_new(GDS_RENDER_TYPE_LAYER_SETTINGS, NULL);
}
int layer_settings_append_layer_info(LayerSettings *settings, struct layer_info *info)
{
struct layer_info *info_copy;
g_return_val_if_fail(GDS_RENDER_IS_LAYER_SETTINGS(settings), -1);
if (!info)
return -2;
/* Copy layer info */
info_copy = layer_info_copy(info);
/* Append to list */
settings->layer_infos = g_list_append(settings->layer_infos, info_copy);
return (settings->layer_infos ? 0 : -3);
}
void layer_settings_clear(LayerSettings *settings)
{
g_return_if_fail(GDS_RENDER_IS_LAYER_SETTINGS(settings));
/* Clear list and delete layer_info structs including the name field */
g_list_free_full(settings->layer_infos, (GDestroyNotify)layer_info_delete_with_name);
settings->layer_infos = NULL;
}
int layer_settings_remove_layer(LayerSettings *settings, int layer)
{
GList *list_iter;
GList *found = NULL;
struct layer_info *inf;
g_return_val_if_fail(GDS_RENDER_IS_LAYER_SETTINGS(settings), -1);
/* Find in list */
for (list_iter = settings->layer_infos; list_iter; list_iter = list_iter->next) {
inf = (struct layer_info *)list_iter->data;
if (!inf)
continue;
if (inf->layer == layer)
found = list_iter;
}
if (found) {
/* Free the layer_info struct */
layer_info_delete_with_name((struct layer_info *)found->data);
/* Delete the list element */
settings->layer_infos = g_list_delete_link(settings->layer_infos, found);
return 0;
}
return -2;
}
GList *layer_settings_get_layer_info_list(LayerSettings *settings)
{
g_return_val_if_fail(GDS_RENDER_IS_LAYER_SETTINGS(settings), NULL);
return settings->layer_infos;
}
/**
* @brief Generate a layer mapping CSV line for a given layer_info struct
* @param string Buffer to write to
* @param linfo Layer information
*/
static void layer_settings_gen_csv_line(GString *string, struct layer_info *linfo)
{
int i;
g_string_printf(string, "%d:%lf:%lf:%lf:%lf:%d:%s\n",
linfo->layer, linfo->color.red, linfo->color.green,
linfo->color.blue, linfo->color.alpha, (linfo->render ? 1 : 0), linfo->name);
/* Fix broken locale settings */
for (i = 0; string->str[i]; i++) {
if (string->str[i] == ',')
string->str[i] = '.';
}
for (i = 0; string->str[i]; i++) {
if (string->str[i] == ':')
string->str[i] = ',';
}
}
int layer_settings_to_csv(LayerSettings *settings, const char *path)
{
GFile *file;
GOutputStream *w_fstream;
GString *string;
GList *info_iter;
struct layer_info *linfo;
int ret = 0;
file = g_file_new_for_path(path);
w_fstream = G_OUTPUT_STREAM(g_file_replace(file, NULL, FALSE, G_FILE_CREATE_NONE, NULL, NULL));
if (!w_fstream) {
ret = -1;
goto ret_unref_file;
}
/* Allocate new working buffer string. A size bigger than 200 is unexpected, but possible
* 200 is a tradeoff between memory usage and preventing the necessity of realloc'ing the string
*/
string = g_string_new_len(NULL, 200);
if (!string) {
ret = -2;
goto ret_close_file;
}
/* Loop over layers and write CSV lines */
for (info_iter = settings->layer_infos; info_iter; info_iter = info_iter->next) {
linfo = (struct layer_info *)info_iter->data;
layer_settings_gen_csv_line(string, linfo);
g_output_stream_write(w_fstream, string->str, string->len * sizeof(gchar), NULL, NULL);
}
/* Delete string */
g_string_free(string, TRUE);
ret_close_file:
g_output_stream_flush(w_fstream, NULL, NULL);
g_output_stream_close(w_fstream, NULL, NULL);
g_object_unref(w_fstream);
ret_unref_file:
g_object_unref(file);
return ret;
}
/**
* @brief Load a line from \p stream and parse try to parse it as layer information
* @param stream Input data stream
* @param linfo Layer info struct to fill
* @return 1 if malformatted line, 0 if parsing was successful and parameters are valid, -1 if file end
*/
static int layer_settings_load_csv_line_from_stream(GDataInputStream *stream, struct layer_info *linfo)
{
int ret;
gsize len;
gchar *line;
GRegex *regex;
GMatchInfo *mi;
char *match;
if (!linfo) {
ret = 1;
goto ret_direct;
}
regex = g_regex_new("^(?<layer>[0-9]+),(?<r>[0-9\\.]+),(?<g>[0-9\\.]+),(?<b>[0-9\\.]+),(?<a>[0-9\\.]+),(?<export>[01]),(?<name>.*)$", 0, 0, NULL);
line = g_data_input_stream_read_line(stream, &len, NULL, NULL);
if (!line) {
ret = -1;
goto destroy_regex;
}
/* Match line in CSV */
g_regex_match(regex, line, 0, &mi);
if (g_match_info_matches(mi)) {
/* Line is valid */
match = g_match_info_fetch_named(mi, "layer");
linfo->layer = (int)g_ascii_strtoll(match, NULL, 10);
g_free(match);
match = g_match_info_fetch_named(mi, "r");
linfo->color.red = g_ascii_strtod(match, NULL);
g_free(match);
match = g_match_info_fetch_named(mi, "g");
linfo->color.green = g_ascii_strtod(match, NULL);
g_free(match);
match = g_match_info_fetch_named(mi, "b");
linfo->color.blue = g_ascii_strtod(match, NULL);
g_free(match);
match = g_match_info_fetch_named(mi, "a");
linfo->color.alpha = g_ascii_strtod(match, NULL);
g_free(match);
match = g_match_info_fetch_named(mi, "export");
linfo->render = ((!strcmp(match, "1")) ? 1 : 0);
g_free(match);
match = g_match_info_fetch_named(mi, "name");
linfo->name = match;
ret = 0;
} else {
/* Line is malformatted */
printf("Could not recognize line in CSV as valid entry: %s\n", line);
ret = 1;
}
g_match_info_free(mi);
g_free(line);
destroy_regex:
g_regex_unref(regex);
ret_direct:
return ret;
}
int layer_settings_load_from_csv(LayerSettings *settings, const char *path)
{
GFile *file;
int ret = 0;
GInputStream *in_stream;
GDataInputStream *data_stream;
int parser_ret;
int stacked_pos;
struct layer_info linfo;
file = g_file_new_for_path(path);
in_stream = G_INPUT_STREAM(g_file_read(file, NULL, NULL));
g_return_val_if_fail(GDS_RENDER_IS_LAYER_SETTINGS(settings), -2);
if (!in_stream) {
ret = -1;
goto ret_destroy_file;
}
/* Delete old settings */
layer_settings_clear(settings);
data_stream = g_data_input_stream_new(in_stream);
stacked_pos = 0;
while ((parser_ret = layer_settings_load_csv_line_from_stream(data_stream, &linfo)) >= 0) {
/* Line broken */
if (parser_ret == 1)
continue;
linfo.stacked_position = stacked_pos++;
layer_settings_append_layer_info(settings, &linfo);
/* Clear name to prevent memory leak */
if (linfo.name)
g_free(linfo.name);
}
g_object_unref(data_stream);
g_object_unref(in_stream);
ret_destroy_file:
g_object_unref(file);
return ret;
}