Doxygen: Update image of Gui and its description. Fix #31

Fix #28

AUR/PKGBUILD

@@ -1,7 +1,7 @@
-	# Maintainer: Mario Hüttel <mario (dot) huettel (!) gmx (dot) net>
+# Maintainer: Mario Hüttel <mario (dot) huettel (!) gmx (dot) net>
 
 pkgname=gds-render
-pkgver=20180725.001
+pkgver=20191020.403.448de30
 pkgrel=1
 pkgdesc="Conversion tool for converting GDS layout files into TikZ Code and PDF"
 arch=('i686' 'x86_64')
@@ -20,13 +20,14 @@ pkgver () {
 }
 
 build () {
-	cd "$srcdir/$pkgname-git"
-	cmake -DCMAKE_BUILD_TYPE=Release .
+	mkdir "$srcdir/$pkgname-git/build"
+	cd "$srcdir/$pkgname-git/build"
+	cmake -DCMAKE_BUILD_TYPE=Release ..
 	make
 }
 
 package () {
-	cd "$srcdir/$pkgname-git"
+	cd "$srcdir/$pkgname-git/build"
 	make DESTDIR="${pkgdir}" install 
 	install -D -m664 "$srcdir/$pkgname-git/AUR/gds-render.desktop" \
 			 "$pkgdir/usr/share/applications/gds-render.desktop"
@@ -34,4 +35,6 @@ package () {
 			 "$pkgdir/usr/share/icons/hicolor/scalable/apps/gds-render.svg"
 	install -D -m664 "$srcdir/$pkgname-git/icon/128x128/gds-render.png" \
 			 "$pkgdir/usr/share/icons/hicolor/128x128/apps/gds-render.png"
+	
+	(cd $srcdir/$pkgname-git/build/translations/output/ && tar cf - "locale" | (cd "$pkgdir/usr/share/" && tar xf -)) 
 }

CMakeLists.txt

@@ -1,18 +1,54 @@
 project(gds-render)
 
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "/usr/" CACHE PATH "..." FORCE)
+endif()
+
+if(NOT WIN32)
+  string(ASCII 27 Esc)
+  set(ColorReset "${Esc}[m")
+  set(ColorBold  "${Esc}[1m")
+  set(Red         "${Esc}[31m")
+  set(Green       "${Esc}[32m")
+  set(Yellow      "${Esc}[33m")
+  set(Blue        "${Esc}[34m")
+  set(Magenta     "${Esc}[35m")
+  set(Cyan        "${Esc}[36m")
+  set(White       "${Esc}[37m")
+  set(BoldRed     "${Esc}[1;31m")
+  set(BoldGreen   "${Esc}[1;32m")
+  set(BoldYellow  "${Esc}[1;33m")
+  set(BoldBlue    "${Esc}[1;34m")
+  set(BoldMagenta "${Esc}[1;35m")
+  set(BoldCyan    "${Esc}[1;36m")
+  set(BoldWhite   "${Esc}[1;37m")
+endif()
+
 cmake_minimum_required(VERSION 2.8)
 find_package(PkgConfig REQUIRED)
 pkg_search_module(GLIB REQUIRED glib-2.0)
 pkg_check_modules(GTK3 REQUIRED gtk+-3.0)
 pkg_check_modules(CAIRO REQUIRED cairo)
 
-add_compile_options(-Wall -Wold-style-declaration -Wuninitialized -Wmaybe-uninitialized -Wunused-parameter)
+include_directories(${GLIB_INCLUDE_DIRS} ${GTK3_INCLUDE_DIRS} ${CAIRO_INCLUDE_DIRS} ${CMAKE_CURRENT_SOURCE_DIR}/include)
+add_subdirectory(plugins)
+
+add_compile_options(-Wall -Wextra -Wold-style-declaration -Wuninitialized -Wmaybe-uninitialized -Wunused-parameter)
+
+IF(CMAKE_BUILD_TYPE STREQUAL "Debug")
+        message("${Yellow}Debug mode for translations used!${ColorReset}")
+	add_definitions(-DGETTEXT_PACKAGE=\"gds-render\" -DLOCALEDATADIR=\"${CMAKE_CURRENT_BINARY_DIR}/translations/output\")
+	message("${BoldMagenta}${CMAKE_CURRENT_BINARY_DIR}/translations/output used as data dir${ColorReset}")
+else(CMAKE_BUILD_TYPE STREQUAL "Debug")
+	message("Global locale directory used. Make sure files in /usr/share/locale are available")
+	add_definitions(-DGETTEXT_PACKAGE=\"gds-render\" -DLOCALEDATADIR=\"/usr/share\")
+ENDIF(CMAKE_BUILD_TYPE STREQUAL "Debug")
 
 add_subdirectory(resources)
 add_subdirectory(doxygen)
+add_subdirectory(translations)
 add_subdirectory(version)
 
-include_directories(${GLIB_INCLUDE_DIRS} ${GTK3_INCLUDE_DIRS} ${CAIRO_INCLUDE_DIRS} ${CMAKE_CURRENT_SOURCE_DIR}/include)
 link_directories(${GLIB_LINK_DIRS} ${GTK3_LINK_DIRS} ${CAIRO_LINK_DIRS})
 add_definitions(${GLIB2_CFLAGS_OTHER})
 
@@ -34,11 +70,19 @@ set(SOURCE
   ${LAYER_SELECTOR_SOURCES}
 )
 
-add_executable(${PROJECT_NAME} ${SOURCE} ${CMAKE_CURRENT_BINARY_DIR}/resources/resources.c)
+set(SOURCE_GENERATED
+  ${CMAKE_CURRENT_BINARY_DIR}/resources/resources.c
+)
+
+SET_SOURCE_FILES_PROPERTIES(${SOURCE_GENERATED} PROPERTIES GENERATED 1)
+
+add_executable(${PROJECT_NAME} ${SOURCE} ${SOURCE_GENERATED})
 add_dependencies(${PROJECT_NAME} glib-resources)
 add_dependencies(${PROJECT_NAME} version)
-SET_SOURCE_FILES_PROPERTIES(${CMAKE_CURRENT_BINARY_DIR}/resources/resources.c PROPERTIES GENERATED 1)
-target_link_libraries(${PROJECT_NAME} ${GLIB_LDFLAGS} ${GTK3_LDFLAGS} ${CAIRO_LDFLAGS} m version ${CMAKE_DL_LIBS})
-install (TARGETS ${PROJECT_NAME} DESTINATION bin)
+add_dependencies(${PROJECT_NAME} translations)
 
-add_custom_target(documentation DEPENDS doxygen)
+target_link_libraries(${PROJECT_NAME} ${GLIB_LDFLAGS} ${GTK3_LDFLAGS} ${CAIRO_LDFLAGS} m version ${CMAKE_DL_LIBS})
+install (TARGETS ${PROJECT_NAME} 
+	RUNTIME	
+		DESTINATION bin
+	)

command-line.c

@@ -29,6 +29,7 @@
  */
 
 #include <stdio.h>
+#include <glib/gi18n.h>
 
 #include <gds-render/command-line.h>
 #include <gds-render/gds-utils/gds-parser.h>
@@ -55,7 +56,7 @@ static int create_renderers(char **renderers,
 			    char **output_file_names,
 			    gboolean tex_layers,
 			    gboolean tex_standalone,
-			    const char *so_path,
+			    const struct external_renderer_params *ext_params,
 			    GList **renderer_list,
 			    LayerSettings *layer_settings)
 {
@@ -70,14 +71,14 @@ static int create_renderers(char **renderers,
 		return -1;
 
 	if (!renderers || !output_file_names) {
-		fprintf(stderr, "Please specify renderers and file names\n");
+		fprintf(stderr, _("Please specify renderers and file names\n"));
 		return -1;
 	}
 
 	count_render = string_array_count(renderers);
 	count_out = string_array_count(output_file_names);
 	if (count_render != count_out) {
-		fprintf(stderr, "Count of renderers %d does not match count of output file names %d\n",
+		fprintf(stderr, _("Count of renderers %d does not match count of output file names %d\n"),
 			count_render, count_out);
 		return -1;
 	}
@@ -99,11 +100,13 @@ static int create_renderers(char **renderers,
 		} else if (!strcmp(current_renderer, "svg")) {
 			output_renderer = GDS_RENDER_OUTPUT_RENDERER(cairo_renderer_new_svg());
 		} else if (!strcmp(current_renderer, "ext")) {
-			if (!so_path) {
-				fprintf(stderr, "Please specify shared object for external renderer. Will ignore this renderer.\n");
+			if (!ext_params->so_path) {
+				fprintf(stderr, _("Please specify shared object for external renderer. Will ignore this renderer.\n"));
 				continue;
 			}
-			output_renderer = GDS_RENDER_OUTPUT_RENDERER(external_renderer_new_with_so(so_path));
+			output_renderer = GDS_RENDER_OUTPUT_RENDERER(
+						external_renderer_new_with_so_and_param(ext_params->so_path,
+											ext_params->cli_params));
 		} else {
 			continue;
 		}
@@ -137,7 +140,7 @@ int command_line_convert_gds(const char *gds_name,
 			      char **renderers,
 			      char **output_file_names,
 			      const char *layer_file,
-			      const char *so_path,
+			      struct external_renderer_params *ext_param,
 			      gboolean tex_standalone,
 			      gboolean tex_layers,
 			      double scale)
@@ -154,7 +157,7 @@ int command_line_convert_gds(const char *gds_name,
 
 	/* Check if parameters are valid */
 	if (!gds_name || !cell_name || !output_file_names || !layer_file || !renderers) {
-		printf("Probably missing argument. Check --help option\n");
+		printf(_("Probably missing argument. Check --help option\n"));
 		return -2;
 	}
 
@@ -164,7 +167,7 @@ int command_line_convert_gds(const char *gds_name,
 
 	/* Create renderers */
 	if (create_renderers(renderers, output_file_names, tex_layers, tex_standalone,
-			     so_path, &renderer_list, layer_sett))
+			     ext_param, &renderer_list, layer_sett))
 		goto ret_destroy_layer_mapping;
 
 
@@ -180,7 +183,7 @@ int command_line_convert_gds(const char *gds_name,
 
 	first_lib = (struct gds_library *)libs->data;
 	if (!first_lib) {
-		fprintf(stderr, "No library in library list. This should not happen.\n");
+		fprintf(stderr, _("No library in library list. This should not happen.\n"));
 		/* This is safe. Library destruction can handle an empty list element */
 		goto ret_destroy_library_list;
 	}
@@ -189,27 +192,27 @@ int command_line_convert_gds(const char *gds_name,
 	toplevel_cell = find_gds_cell_in_lib(first_lib, cell_name);
 
 	if (!toplevel_cell) {
-		printf("Couldn't find cell in first library!\n");
+		printf(_("Couldn't find cell in first library!\n"));
 		goto ret_destroy_library_list;
 	}
 
 	/* Check if cell passes vital checks */
 	res = gds_tree_check_reference_loops(toplevel_cell->parent_library);
 	if (res < 0) {
-		fprintf(stderr, "Checking library %s failed.\n", first_lib->name);
+		fprintf(stderr, _("Checking library %s failed.\n"), first_lib->name);
 		goto ret_destroy_library_list;
 	} else if (res > 0) {
-		fprintf(stderr, "%d reference loops found.\n", res);
+		fprintf(stderr, _("%d reference loops found.\n"), res);
 
 		/* do further checking if the specified cell and/or its subcells are affected */
 		if (toplevel_cell->checks.affected_by_reference_loop == 1) {
-			fprintf(stderr, "Cell is affected by reference loop. Abort!\n");
+			fprintf(stderr, _("Cell is affected by reference loop. Abort!\n"));
 			goto ret_destroy_library_list;
 		}
 	}
 
 	if (toplevel_cell->checks.affected_by_reference_loop == GDS_CELL_CHECK_NOT_RUN)
-		fprintf(stderr, "Cell was not checked. This should not happen. Please report this issue. Will continue either way.\n");
+		fprintf(stderr, _("Cell was not checked. This should not happen. Please report this issue. Will continue either way.\n"));
 
 	/* Note: unresolved references are not an abort condition.
 	 * Deal with it.
@@ -224,9 +227,8 @@ int command_line_convert_gds(const char *gds_name,
 ret_destroy_library_list:
 	clear_lib_list(&libs);
 ret_clear_renderers:
-	for (list_iter = renderer_list; list_iter; list_iter = list_iter->next) {
+	for (list_iter = renderer_list; list_iter; list_iter = list_iter->next)
 		g_object_unref(list_iter->data);
-	}
 ret_destroy_layer_mapping:
 	g_object_unref(layer_sett);
 	return ret;

doxygen/CMakeLists.txt

@@ -1,10 +1,19 @@
 find_package(Doxygen)
 
 if (DOXYGEN_FOUND)
- 	add_custom_target(doxygen
+	add_custom_target(documentation DEPENDS doxygen doxygen-pdf)
+
+	add_custom_target(doxygen
 		COMMAND ./build-doxygen.sh "${PROJECT_BINARY_DIR}"
 		WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 		COMMENT "Generating documentation with Doxygen")
+
+	add_custom_target(
+	   doxygen-pdf
+	   COMMAND make
+	   WORKING_DIRECTORY "${PROJECT_BINARY_DIR}/latex"
+	   DEPENDS doxygen
+	   )
 else (DOXYGEN_FOUND)
-  message("Doxygen need to be installed to generate the doxygen documentation")
+	message("Doxygen needs to be installed to generate the doxygen documentation")
 endif (DOXYGEN_FOUND)

doxygen/Doxyconfig

@@ -1766,7 +1766,7 @@ PAPER_TYPE             = a4
 # If left blank no extra packages will be included.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
-EXTRA_PACKAGES         =
+EXTRA_PACKAGES         = amsmath
 
 # The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
 # generated LaTeX document. The header should contain everything until the first

doxygen/external-renderer.dox

@@ -9,7 +9,18 @@
  * Property Name    | Description
  * -----------------|----------------------------------------------------------------
  * shared-object-path  | Path to the shared object used for rendering
+ * param-string | Command line parameters passed to external renderer's init function
  *
  * All these properties have to be set for rendering.
  *
+ * @section ExternalRendererFuncs Necessary Functions
+ *
+ * The following functions and variables are necessary for an external renderer to implement:
+ *
+ * Code Define 				| Prototype  																	|  Description
+ * ---------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------
+ * @ref EXTERNAL_LIBRARY_RENDER_FUNCTION	| int EXTERNAL_LIBRARY_RENDER_FUNCTION(struct gds_cell *toplevel, GList *layer_info_list, const char *output_file_name, double scale)		| Render cell to output file
+ * @ref EXTERNAL_LIBRARY_INIT_FUNCTION		| int EXTERNAL_LIBRARY_INIT_FUNCTION(const char *option_string, const char *version_string)							| Init function. Executed before rendering. This is given the command line parameters specified for the external renderer and the version string of the currently running gds-render program.
+ * @ref EXTERNAL_LIBRARY_FORK_REQUEST		| int EXTERNAL_LIBRARY_FORK_REQUEST;														| The pure presence of this integer results in the execution inside a subprocess of hte whole shared object's code
+ *
  */

doxygen/plugins.dox

@@ -0,0 +1,6 @@
+/**
+ * @defgroup plugins External Renderer Plugins
+ * 
+ * These plugins can be loaded with the @ref ExternalRenderer
+ *
+ */ 

doxygen/usage.dox

@@ -35,6 +35,6 @@ It is possible to export the layer configurations so they can be used later on.
 
 The cell selector on the left shows the GDS Libraries and Cells. The cells are marked green if all references inside the cell could be found. If not all references could be found, the cell is marked orange. This doens't show if child cells have missing childs. Only one level of the hierarchy is checked in order to make it easier to spot an errorneous cell. Cells with missing child cells are still renderable but `--` obviously `--` faulty. If a cell or any sub-cell contains a reference loop, the cell is marked red. In this case it can't be selected for rendering.
 
-In the above image the cell is green; so everything is okay. 
-
+In the above image one cell is green; so everything is okay. And the other one is red, which indicates a reference loop. This cell cannot be selected for rendering!
 */
+

gds-render-gui.c

@@ -29,6 +29,7 @@
 
 #include <stdio.h>
 #include <gtk/gtk.h>
+#include <glib/gi18n.h>
 
 #include <gds-render/gds-render-gui.h>
 #include <gds-render/gds-utils/gds-parser.h>
@@ -47,8 +48,6 @@ enum cell_store_columns {
 	CELL_SEL_LIBRARY = 0,
 	CELL_SEL_CELL,
 	CELL_SEL_CELL_ERROR_STATE, /**< Used for cell color and selectability */
-	CELL_SEL_MODDATE,
-	CELL_SEL_ACCESSDATE,
 	CELL_SEL_COLUMN_COUNT /**< @brief Not a column. Used to determine count of columns */
 };
 
@@ -115,25 +114,6 @@ static gboolean on_window_close(gpointer window, GdkEvent *event, gpointer user)
 	return TRUE;
 }
 
-/**
- * @brief generate string from gds_time_field
- * @param date Date to convert
- * @return String with date
- */
-static GString *generate_string_from_date(struct gds_time_field *date)
-{
-	GString *str;
-
-	str = g_string_new_len(NULL, 50);
-	g_string_printf(str, "%02u.%02u.%u - %02u:%02u",
-			(unsigned int)date->day,
-			(unsigned int)date->month,
-			(unsigned int)date->year,
-			(unsigned int)date->hour,
-			(unsigned int)date->minute);
-	return str;
-}
-
 /**
  * @brief This function only allows valid cells to be selected
  * @param selection
@@ -215,7 +195,7 @@ static gboolean cell_store_filter_visible_func(GtkTreeModel *model, GtkTreeIter
 	if (!cell)
 		goto exit_filter;
 
-	search_string = gtk_entry_get_text(GTK_ENTRY(self->cell_search_entry	));
+	search_string = gtk_entry_get_text(GTK_ENTRY(self->cell_search_entry));
 
 	/* Show all, if field is empty */
 	if (!strlen(search_string))
@@ -236,17 +216,17 @@ exit_filter:
  */
 int gds_render_gui_setup_cell_selector(GdsRenderGui *self)
 {
-	GtkCellRenderer *render_dates;
 	GtkCellRenderer *render_cell;
 	GtkCellRenderer *render_lib;
 	GtkTreeViewColumn *column;
 
 	self->cell_tree_store = gtk_tree_store_new(CELL_SEL_COLUMN_COUNT, G_TYPE_POINTER,
-					 G_TYPE_POINTER, G_TYPE_UINT,
-					 G_TYPE_STRING, G_TYPE_STRING);
+					 G_TYPE_POINTER, G_TYPE_UINT);
 
 	/* Searching */
-	self->cell_filter = GTK_TREE_MODEL_FILTER(gtk_tree_model_filter_new(GTK_TREE_MODEL(self->cell_tree_store), NULL));
+	self->cell_filter = GTK_TREE_MODEL_FILTER(
+				gtk_tree_model_filter_new(GTK_TREE_MODEL(self->cell_tree_store), NULL));
+
 	gtk_tree_model_filter_set_visible_func(self->cell_filter,
 						(GtkTreeModelFilterVisibleFunc)cell_store_filter_visible_func,
 						 self, NULL);
@@ -255,26 +235,21 @@ int gds_render_gui_setup_cell_selector(GdsRenderGui *self)
 
 	gtk_tree_view_set_model(self->cell_tree_view, GTK_TREE_MODEL(self->cell_filter));
 
-	render_dates = gtk_cell_renderer_text_new();
 	render_cell = lib_cell_renderer_new();
 	render_lib = lib_cell_renderer_new();
 
-	column = gtk_tree_view_column_new_with_attributes("Library", render_lib, "gds-lib", CELL_SEL_LIBRARY, NULL);
+	column = gtk_tree_view_column_new_with_attributes(_("Library"), render_lib, "gds-lib", CELL_SEL_LIBRARY, NULL);
 	gtk_tree_view_append_column(self->cell_tree_view, column);
 
-	column = gtk_tree_view_column_new_with_attributes("Cell", render_cell, "gds-cell", CELL_SEL_CELL,
+	column = gtk_tree_view_column_new_with_attributes(_("Cell"), render_cell, "gds-cell", CELL_SEL_CELL,
 							  "error-level", CELL_SEL_CELL_ERROR_STATE, NULL);
 	gtk_tree_view_append_column(self->cell_tree_view, column);
 
-	column = gtk_tree_view_column_new_with_attributes("Mod. Date", render_dates, "text", CELL_SEL_MODDATE, NULL);
-	gtk_tree_view_append_column(self->cell_tree_view, column);
-
-	column = gtk_tree_view_column_new_with_attributes("Acc. Date", render_dates, "text", CELL_SEL_ACCESSDATE, NULL);
-	gtk_tree_view_append_column(self->cell_tree_view, column);
-
 	/* Callback for selection
-	 * This prevents selecting a library */
-	gtk_tree_selection_set_select_function(gtk_tree_view_get_selection(self->cell_tree_view), tree_sel_func, NULL, NULL);
+	 * This prevents selecting a library
+	 */
+	gtk_tree_selection_set_select_function(gtk_tree_view_get_selection(self->cell_tree_view),
+					       tree_sel_func, NULL, NULL);
 
 	return 0;
 }
@@ -300,25 +275,23 @@ static void on_load_gds(gpointer button, gpointer user)
 	gint dialog_result;
 	int gds_result;
 	char *filename;
-	GString *mod_date;
-	GString *acc_date;
 	unsigned int cell_error_level;
 
 	self = RENDERER_GUI(user);
 	if (!self)
 		return;
 
-	open_dialog = gtk_file_chooser_dialog_new("Open GDSII File", self->main_window,
+	open_dialog = gtk_file_chooser_dialog_new(_("Open GDSII File"), self->main_window,
 						  GTK_FILE_CHOOSER_ACTION_OPEN,
-						  "Cancel", GTK_RESPONSE_CANCEL,
-						  "Open GDSII", GTK_RESPONSE_ACCEPT,
+						  _("Cancel"), GTK_RESPONSE_CANCEL,
+						  _("Open GDSII"), GTK_RESPONSE_ACCEPT,
 						  NULL);
 	file_chooser = GTK_FILE_CHOOSER(open_dialog);
 
 	/* Add GDS II Filter */
 	filter = gtk_file_filter_new();
 	gtk_file_filter_add_pattern(filter, "*.gds");
-	gtk_file_filter_set_name(filter, "GDSII-Files");
+	gtk_file_filter_set_name(filter, _("GDSII-Files"));
 	gtk_file_chooser_add_filter(file_chooser, filter);
 
 	dialog_result = gtk_dialog_run(GTK_DIALOG(open_dialog));
@@ -349,30 +322,17 @@ static void on_load_gds(gpointer button, gpointer user)
 		/* Create top level iter */
 		gtk_tree_store_append(self->cell_tree_store, &libiter, NULL);
 
-		/* Convert dates to String */
-		mod_date = generate_string_from_date(&gds_lib->mod_time);
-		acc_date = generate_string_from_date(&gds_lib->access_time);
-
 		gtk_tree_store_set(self->cell_tree_store, &libiter,
 				   CELL_SEL_LIBRARY, gds_lib,
-				   CELL_SEL_MODDATE, mod_date->str,
-				   CELL_SEL_ACCESSDATE, acc_date->str,
 				   -1);
 
 		/* Check this library. This might take a while */
 		(void)gds_tree_check_cell_references(gds_lib);
 		(void)gds_tree_check_reference_loops(gds_lib);
-		/* Delete GStrings including string data. */
-		/* Cell store copies String type data items */
-		g_string_free(mod_date, TRUE);
-		g_string_free(acc_date, TRUE);
 
 		for (cell = gds_lib->cells; cell != NULL; cell = cell->next) {
 			gds_c = (struct gds_cell *)cell->data;
 			gtk_tree_store_append(self->cell_tree_store, &celliter, &libiter);
-			/* Convert dates to String */
-			mod_date = generate_string_from_date(&gds_c->mod_time);
-			acc_date = generate_string_from_date(&gds_c->access_time);
 
 			/* Get the checking results for this cell */
 			cell_error_level = 0;
@@ -386,15 +346,9 @@ static void on_load_gds(gpointer button, gpointer user)
 			/* Add cell to tree store model */
 			gtk_tree_store_set(self->cell_tree_store, &celliter,
 					   CELL_SEL_CELL, gds_c,
-					   CELL_SEL_MODDATE, mod_date->str,
-					   CELL_SEL_ACCESSDATE, acc_date->str,
 					   CELL_SEL_CELL_ERROR_STATE, cell_error_level,
+					   CELL_SEL_LIBRARY, gds_c->parent_library,
 					   -1);
-
-			/* Delete GStrings including string data. */
-			/* Cell store copies String type data items */
-			g_string_free(mod_date, TRUE);
-			g_string_free(acc_date, TRUE);
 		} /* for cells */
 	} /* for libraries */
 
@@ -450,7 +404,9 @@ static void async_rendering_finished_callback(GdsOutputRenderer *renderer, gpoin
 	g_object_unref(renderer);
 }
 
-static void async_rendering_status_update_callback(GdsOutputRenderer *renderer, const char *status_message, gpointer data)
+static void async_rendering_status_update_callback(GdsOutputRenderer *renderer,
+						   const char *status_message,
+						   gpointer data)
 {
 	GdsRenderGui *gui;
 	(void)renderer;
@@ -595,21 +551,13 @@ static void on_convert_clicked(gpointer button, gpointer user)
 			g_signal_connect(render_engine, "async-finished", G_CALLBACK(async_rendering_finished_callback),
 					 self);
 
-			activity_bar_set_busy(self->activity_status_bar, "Rendering cell...");
-			/* TODO: Replace this with asynchronous rendering. However, this fixes issue #19 */
+			activity_bar_set_busy(self->activity_status_bar, _("Rendering cell..."));
 
 			g_signal_connect(render_engine, "progress-changed",
 					 G_CALLBACK(async_rendering_status_update_callback), self);
 			gds_output_renderer_render_output_async(render_engine, cell_to_render, sett->scale);
-
-
-			//self->button_state_data.rendering_active = FALSE;
-
-			//g_object_unref(render_engine);
 		}
-
 		g_free(file_name);
-
 	} else {
 		gtk_widget_destroy(dialog);
 	}
@@ -752,6 +700,10 @@ static void auto_naming_clicked(GtkWidget *button, gpointer user_data)
 
 	gui = RENDERER_GUI(user_data);
 
+	/* Don't do anything if the selector is empty. */
+	if (!layer_selector_contains_elements(gui->layer_selector))
+		return;
+
 	/* Ask for overwrite */
 	dialog = GTK_DIALOG(gtk_message_dialog_new(gui->main_window, GTK_DIALOG_USE_HEADER_BAR, GTK_MESSAGE_QUESTION,
 						   GTK_BUTTONS_YES_NO, "Overwrite existing layer names?"));

gds-utils/gds-parser.c

@@ -40,6 +40,7 @@
 #include <stdbool.h>
 #include <math.h>
 #include <cairo.h>
+#include <glib/gi18n.h>
 
 #include <gds-render/gds-utils/gds-parser.h>
 
@@ -597,7 +598,7 @@ static void convert_aref_to_sref(struct gds_cell_array_instance *aref, struct gd
 	/* Iterate over columns and rows */
 	for (col = 0; col < aref->columns; col++) {
 		for (row = 0; row < aref->rows; row++) {
-			/* Create new instance for this row/column and aconfigure data */
+			/* Create new instance for this row/column and configure data */
 			container_cell->child_cells = append_cell_ref(container_cell->child_cells, &sref_inst);
 			if (!sref_inst) {
 				GDS_ERROR("Appending cell ref failed!");

gds-utils/gds-tree-checker.c

@@ -34,7 +34,7 @@
  */
 
 #include <stdio.h>
-
+#include <glib/gi18n.h>
 #include <gds-render/gds-utils/gds-tree-checker.h>
 
 int gds_tree_check_cell_references(struct gds_library *lib)
@@ -54,7 +54,7 @@ int gds_tree_check_cell_references(struct gds_library *lib)
 
 		/* Check if this list element is broken. This should never happen */
 		if (!cell) {
-			fprintf(stderr, "Broken cell list item found. Will continue.\n");
+			fprintf(stderr, _("Broken cell list item found. Will continue.\n"));
 			continue;
 		}
 
@@ -68,7 +68,7 @@ int gds_tree_check_cell_references(struct gds_library *lib)
 
 			/* Check if broken. This should not happen */
 			if (!cell_inst) {
-				fprintf(stderr, "Broken cell list item found in cell %s. Will continue.\n",
+				fprintf(stderr, _("Broken cell list item found in cell %s. Will continue.\n"),
 						cell->name);
 				continue;
 			}
@@ -90,7 +90,8 @@ int gds_tree_check_cell_references(struct gds_library *lib)
  * @param cell Cell to check for
  * @return 0 if cell is not in list. 1 if cell is in list
  */
-static int gds_tree_check_list_contains_cell(GList *list, struct gds_cell *cell) {
+static int gds_tree_check_list_contains_cell(GList *list, struct gds_cell *cell)
+{
 	GList *iter;
 
 	for (iter = list; iter != NULL; iter = g_list_next(iter)) {
@@ -177,12 +178,14 @@ int gds_tree_check_reference_loops(struct gds_library *lib)
 		res = gds_tree_check_iterate_ref_and_check(cell_to_check, &visited_cells);
 
 		if (visited_cells) {
-			/* If  cell contains no loop, print error when list not empty.
+			/*
+			 * If  cell contains no loop, print error when list not empty.
 			 * In case of a loop, it is completely normal that the list is not empty,
 			 * due to the instant return from gds_tree_check_iterate_ref_and_check()
 			 */
 			if (res == 0)
-				fprintf(stderr, "Visited cell list should be empty. This is a bug. Please report this.\n");
+				fprintf(stderr,
+					_("Visited cell list should be empty. This is a bug. Please report this.\n"));
 			g_list_free(visited_cells);
 			visited_cells = NULL;
 		}

geometric/bounding-box.c

@@ -33,8 +33,8 @@
 
 #include <gds-render/geometric/bounding-box.h>
 
-#define MIN(a,b) (((a) < (b)) ? (a) : (b)) /**< @brief Return smaller number */
-#define MAX(a,b) (((a) > (b)) ? (a) : (b)) /**< @brief Return bigger number */
+#define MIN(a, b) (((a) < (b)) ? (a) : (b)) /**< @brief Return smaller number */
+#define MAX(a, b) (((a) > (b)) ? (a) : (b)) /**< @brief Return bigger number */
 #define ABS_DBL(a) ((a) < 0 ? -(a) : (a))
 
 void bounding_box_calculate_polygon(GList *vertices, conv_generic_to_vector_2d_t conv_func, union bounding_box *box)
@@ -145,13 +145,13 @@ static void calculate_path_miter_points(struct vector_2d *a, struct vector_2d *b
 	vector_2d_subtract(m2, m2, &v_vec);
 }
 
-void bounding_box_calculate_path_box(GList *vertices, double thickness,
+void bounding_box_update_with_path(GList *vertices, double thickness,
 					conv_generic_to_vector_2d_t conv_func, union bounding_box *box)
 {
 	GList *vertex_iterator;
 	struct vector_2d pt;
 
-	//printf("Warning! Function bounding_box_calculate_path_box not yet implemented correctly!\n");
+	/* printf("Warning! Function %s not yet implemented correctly!\n", __func__); */
 
 	if (!vertices || !box)
 		return;
@@ -191,24 +191,40 @@ void bounding_box_update_point(union bounding_box *destination, conv_generic_to_
 	destination->vectors.upper_right.y = MAX(destination->vectors.upper_right.y, point.y);
 }
 
-/**
- * @brief Apply transformations onto bounding box.
- * @param scale Scaling factor
- * @param rotation_deg Roation of bounding box around the origin in degrees (counterclockwise)
- * @param flip_at_x Flip the boundig box on the x axis before rotating.
- * @param box Bounding box the operations should be applied to.
- */
+void bounding_box_get_all_points(struct vector_2d *points, union bounding_box *box)
+{
+	if (!points || !box)
+		return;
+
+	points[0].x = box->vectors.lower_left.x;
+	points[0].y = box->vectors.lower_left.y;
+	points[1].x = box->vectors.upper_right.x;
+	points[1].y = box->vectors.lower_left.y;
+	points[2].x = box->vectors.upper_right.x;
+	points[2].y = box->vectors.upper_right.y;
+	points[3].x = box->vectors.lower_left.x;
+	points[3].y = box->vectors.upper_right.y;
+}
+
 void bounding_box_apply_transform(double scale, double rotation_deg, bool flip_at_x, union bounding_box *box)
 {
 	int i;
+	struct vector_2d input_points[4];
 
-	/* Due to linearity, the order of the operations does not matter.
-	 * flip must be applied before rotation as defined by the GDS format
-	 */
-	for (i = 0; i < 2; i++) {
-		box->vector_array[i].y *= (flip_at_x ? -1 : 1);
-		vector_2d_rotate(&box->vector_array[i], rotation_deg * M_PI / 180);
-		vector_2d_scale(&box->vector_array[i], scale);
+	if (!box)
+		return;
+
+	bounding_box_get_all_points(input_points, box);
+
+	/* Reset box */
+	bounding_box_prepare_empty(box);
+
+	for (i = 0; i < 4; i++) {
+		input_points[i].y *= (flip_at_x ? -1 : 1);
+		vector_2d_rotate(&input_points[i], rotation_deg * M_PI / 180.0);
+		vector_2d_scale(&input_points[i], scale);
+
+		bounding_box_update_point(box, NULL, &input_points[i]);
 	}
 }
 

geometric/cell-geometrics.c

@@ -63,7 +63,7 @@ static void update_box_with_gfx(union bounding_box *box, struct gds_graphics *gf
 		 * Please be aware if paths are the outmost elements of your cell.
 		 * You might end up with a completely wrong calculated cell size.
 		 */
-		bounding_box_calculate_path_box(gfx->vertices, gfx->width_absolute,
+		bounding_box_update_with_path(gfx->vertices, gfx->width_absolute,
 							(conv_generic_to_vector_2d_t)&convert_gds_point_to_2d_vector,
 							&current_box);
 		break;

geometric/vector-operations.c

@@ -46,9 +46,10 @@ double vector_2d_scalar_multipy(struct vector_2d *a, struct vector_2d *b)
 void vector_2d_normalize(struct vector_2d *vec)
 {
 	double len;
+
 	if (!vec)
 		return;
-	len = sqrt(pow(vec->x,2)+pow(vec->y,2));
+	len = sqrt(pow(vec->x, 2) + pow(vec->y, 2));
 	vec->x = vec->x/len;
 	vec->y = vec->y/len;
 }
@@ -97,9 +98,8 @@ struct vector_2d *vector_2d_alloc(void)
 
 void vector_2d_free(struct vector_2d *vec)
 {
-	if (vec) {
+	if (vec)
 		free(vec);
-	}
 }
 
 void vector_2d_scale(struct vector_2d *vec, double scale)
@@ -114,9 +114,9 @@ void vector_2d_scale(struct vector_2d *vec, double scale)
 double vector_2d_abs(struct vector_2d *vec)
 {
 	double len = 0.0;
-	if (vec) {
-		len = sqrt(pow(vec->x,2)+pow(vec->y,2));
-	}
+
+	if (vec)
+		len = sqrt(pow(vec->x, 2) + pow(vec->y, 2));
 	return len;
 }
 
@@ -142,7 +142,7 @@ void vector_2d_subtract(struct vector_2d *res, struct vector_2d *a, struct vecto
 void vector_2d_add(struct vector_2d *res, struct vector_2d *a, struct vector_2d *b)
 {
 	if (res && a && b) {
-		res->x = a->x +b->x;
+		res->x = a->x + b->x;
 		res->y = a->y + b->y;
 	}
 }

include/gds-render/command-line.h

@@ -33,6 +33,21 @@
 
 #include <glib.h>
 
+/**
+ * @brief External renderer paramameters to command line renderer
+ */
+struct external_renderer_params {
+	/**
+	 * @brief Path to shared object
+	 */
+	char *so_path;
+
+	/**
+	 * @brief Command line parameters given
+	 */
+	char *cli_params;
+};
+
 /**
  * @brief Convert GDS according to command line parameters
  * @param gds_name Path to GDS File
@@ -40,7 +55,7 @@
  * @param renderers Renderer ids
  * @param output_file_names Output file names
  * @param layer_file Layer mapping file
- * @param so_path Shared object
+ * @param ext_param Settings for external library renderer
  * @param tex_standalone Standalone TeX
  * @param tex_layers TeX OCR layers
  * @param scale Scale value
@@ -51,7 +66,7 @@ int command_line_convert_gds(const char *gds_name,
 			     char **renderers,
 			     char **output_file_names,
 			     const char *layer_file,
-			     const char *so_path,
+			     struct external_renderer_params *ext_param,
 			     gboolean tex_standalone,
 			     gboolean tex_layers,
 			     double scale);

include/gds-render/gds-utils/gds-types.h

@@ -58,7 +58,7 @@ enum graphics_type
 enum path_type {PATH_FLUSH = 0, PATH_ROUNDED = 1, PATH_SQUARED = 2}; /**< Path line caps */
 
 /**
- * @brief A point in the 2D plane. Sometimes reffered to as vertex
+ * @brief A point in the 2D plane. Sometimes referred to as vertex
  */
 struct gds_point {
 	int x;

include/gds-render/geometric/bounding-box.h

@@ -46,12 +46,75 @@ union bounding_box {
 
 typedef void (*conv_generic_to_vector_2d_t)(void *, struct vector_2d *);
 
+/**
+ * @brief Calculate bounding box of polygon
+ * @param vertices List of vertices that describe the polygon
+ * @param conv_func Conversion function to convert vertices to vector_2d structs.
+ * @param box Box to write to. This box is not updated! All previous data is discarded
+ */
 void bounding_box_calculate_polygon(GList *vertices, conv_generic_to_vector_2d_t conv_func, union bounding_box *box);
+
+/**
+ * @brief Update an exisitng bounding box with another one.
+ * @param destination Target box to update
+ * @param update Box to update the target with
+ */
 void bounding_box_update_box(union bounding_box *destination, union bounding_box *update);
+
+/**
+ * @brief Prepare an empty bounding box.
+ *
+ * Updating this specially prepared box, results in a bounding box that is the same size as the update
+ *
+ * @param box Box to preapre
+ */
 void bounding_box_prepare_empty(union bounding_box *box);
+
+/**
+ * @brief Update bounding box with a point
+ * @param destination Bounding box to update
+ * @param conv_func Conversion function to convert \p pt to a vector_2d. May be NULL
+ * @param pt Point to update bounding box with
+ */
 void bounding_box_update_point(union bounding_box *destination, conv_generic_to_vector_2d_t conv_func, void *pt);
+
+/**
+ * @brief Return all four corner points of a bounding box
+ * @param[out] points Array of 4 vector_2d structs that has to be allocated by the caller
+ * @param box Bounding box
+ */
+void bounding_box_get_all_points(struct vector_2d *points, union bounding_box *box);
+
+/**
+ * @brief Apply transformations onto bounding box.
+ *
+ * All corner points \f$ \vec{P_i} \f$ of the bounding box are transformed to output points \f$ \vec{P_o} \f$ by:
+ *
+ * \f$ \vec{P_o} = s \cdot \begin{pmatrix}\cos\left(\phi\right) & -\sin\left(\phi\right)\\ \sin\left(\phi\right) & \cos\left(\phi\right)\end{pmatrix} \cdot \begin{pmatrix} 1 & 0 \\ 0 & -1^{m} \end{pmatrix} \cdot \vec{P_i} \f$, with:
+ *
+ * * \f$s\f$: Scale
+ * * \f$m\f$: 1, if flipped_at_x is True, else 0
+ * * \f$\phi\f$: Rotation angle in radians. The conversion degrees => radians is done internally
+ *
+ * The result is the bounding box generated around all output points
+ *
+ * @param scale Scaling factor
+ * @param rotation_deg Rotation of bounding box around the origin in degrees (counterclockwise)
+ * @param flip_at_x Flip the boundig box on the x axis before rotating.
+ * @param box Bounding box the operations should be applied to.
+ * @note Keep in mind, that this bounding boxy is actually the bounding box of the rotated boundig box and not the object itself.
+ *       It might be too big.
+ */
 void bounding_box_apply_transform(double scale, double rotation_deg, bool flip_at_x, union bounding_box *box);
-void bounding_box_calculate_path_box(GList *vertices, double thickness, conv_generic_to_vector_2d_t conv_func, union bounding_box *box);
+
+/**
+ * @brief Calculate the bounding box of a path and update the given bounding box
+ * @param vertices Vertices the path is made up of
+ * @param thickness Thisckness of the path
+ * @param conv_func Conversion function for vertices to vector_2d structs
+ * @param box Bounding box to write results in.
+ */
+void bounding_box_update_with_path(GList *vertices, double thickness, conv_generic_to_vector_2d_t conv_func, union bounding_box *box);
 
 #endif /* _BOUNDING_BOX_H_ */
 

include/gds-render/layer/layer-selector.h

@@ -118,6 +118,18 @@ void layer_selector_auto_color_layers(LayerSelector *layer_selector, ColorPalett
  */
 void layer_selector_auto_name_layers(LayerSelector *layer_selector, gboolean overwrite);
 
+/**
+ * @brief Check if the given layer selector contains layer elements.
+ *
+ * This function checks whether there are elements present.
+ * If an invalid object pointer \p layer_selector is passed,
+ * the function returns FALSE
+ *
+ * @param[in] layer_selector Selector to check
+ * @return True, if there is at least one layer present inside the selector
+ */
+gboolean layer_selector_contains_elements(LayerSelector *layer_selector);
+
 G_END_DECLS
 
 #endif /* __LAYER_SELECTOR_H__ */

include/gds-render/output-renderers/external-renderer-interfaces.h

@@ -0,0 +1,57 @@
+#ifndef __EXTERNAL_RENDERER_INTERFACES_H__
+#define __EXTERNAL_RENDERER_INTERFACES_H__
+
+#ifndef xstr
+
+#define xstr(a) str(a)
+#define str(a) #a
+
+#endif /* xstr */
+
+/**
+ * @addtogroup ExternalRenderer
+ * @{
+ */
+
+/**
+ * @brief This define is used to export a function from a shared object
+ */
+#define EXPORT_FUNC __attribute__((visibility("default")))
+
+/**
+ * @brief Function name expected to be found in external library for rendering.
+ *
+ * The function has to be defined as follows:
+ * @code
+ * int EXTERNAL_LIBRARY_RENDER_FUNCTION(struct gds_cell *toplevel, GList *layer_info_list, const char *output_file_name, double scale);
+ * @endcode
+ */
+#define EXTERNAL_LIBRARY_RENDER_FUNCTION exported_render_cell_to_file
+
+/**
+ * @brief Function name expected to be found in external library for initialization.
+ *
+ * @code
+ * int EXTERNAL_LIBRARY_INIT_FUNCTION(const char *option_string, const char *version_string);
+ * @endcode
+ */
+#define EXTERNAL_LIBRARY_INIT_FUNCTION exported_init
+
+/**
+ * @brief Global integer specified by an external renderer to signal, that the init and render functions shall be executed in a subprocess
+ *
+ * The pure presence of this symbol name causes forking. The content of this variable is don't care.
+ * @note Use this if you mess with the internal structures of gds-render
+ */
+#define EXTERNAL_LIBRARY_FORK_REQUEST exported_fork_request
+
+/**
+ * @brief Define for declaring the exported functions.
+ *
+ * This not only helps with the declaration but also makes the symbols visible, so they can be called form outside the library
+ */
+#define EXPORTED_FUNC_DECL(FUNC) EXPORT_FUNC FUNC
+
+/** @} */
+
+#endif /* __EXTERNAL_RENDERER_INTERFACES_H__ */

include/gds-render/output-renderers/external-renderer.h

@@ -33,6 +33,7 @@
 
 #include <gds-render/output-renderers/gds-output-renderer.h>
 #include <gds-render/gds-utils/gds-types.h>
+#include <gds-render/output-renderers/external-renderer-interfaces.h>
 
 G_BEGIN_DECLS
 
@@ -40,16 +41,6 @@ G_BEGIN_DECLS
 
 G_DECLARE_FINAL_TYPE(ExternalRenderer, external_renderer, GDS_RENDER, EXTERNAL_RENDERER, GdsOutputRenderer)
 
-/**
- * @brief function name expected to be found in external library.
- * 
- * The function has to be defined as follows:
- * @code
- * int EXTERNAL_LIBRARY_FUNCTION(struct gds_cell *toplevel, GList *layer_info_list, const char *output_file_name, double scale)
- * @endcode
- */
-#define EXTERNAL_LIBRARY_FUNCTION "render_cell_to_file"
-
 /**
  * @brief Create new ExternalRenderer object
  * @return New object
@@ -59,9 +50,10 @@ ExternalRenderer *external_renderer_new();
 /**
  * @brief Create new ExternalRenderer object with specified shared object path
  * @param so_path Path to shared object, the rendering function is searched in
+ * @param param_string Command line parameter string passed to external renderer
  * @return New object.
  */
-ExternalRenderer *external_renderer_new_with_so(const char *so_path);
+ExternalRenderer *external_renderer_new_with_so_and_param(const char *so_path, const char *param_string);
 
 G_END_DECLS
 

layer/color-palette.c

@@ -26,17 +26,17 @@
 #include <gds-render/layer/color-palette.h>
 
 struct _ColorPalette {
-	/* Inheritance */
-	GObject parent;
+		/* Inheritance */
+		GObject parent;
 
-	/* Custom fields */
-	/** @brief The internal array to store the colors */
-	GdkRGBA *color_array;
-	/** @brief The length of the _ColorPalette::color_array array */
-	unsigned int color_array_length;
+		/* Custom fields */
+		/** @brief The internal array to store the colors */
+		GdkRGBA *color_array;
+		/** @brief The length of the _ColorPalette::color_array array */
+		unsigned int color_array_length;
 
-	/* Dummy bytes to ensure ABI compatibility in future versions */
-	gpointer dummy[4];
+		/* Dummy bytes to ensure ABI compatibility in future versions */
+		gpointer dummy[4];
 };
 
 G_DEFINE_TYPE(ColorPalette, color_palette, G_TYPE_OBJECT)
@@ -106,13 +106,13 @@ static int color_palette_fill_with_resource(ColorPalette *palette, char *resourc
 	char_array = (const char *)g_bytes_get_data(data, &byte_count);
 
 	if (!char_array || !byte_count)
-		goto ret_unref;
+		goto ret_unref_data;
 
 	/* Get maximum lenght of color palette, assuming all entries are valid */
 	lines = count_non_empty_lines_in_array(char_array, byte_count);
 
 	if (lines <= 0)
-		goto ret_unref;
+		goto ret_unref_data;
 
 	palette->color_array = (GdkRGBA *)malloc(sizeof(GdkRGBA) * (unsigned int)lines);
 
@@ -128,26 +128,28 @@ static int color_palette_fill_with_resource(ColorPalette *palette, char *resourc
 	color_idx = 0;
 
 	/* interate over lines and match */
-	for (idx = 0 ; idx < byte_count; idx++) {
+	for (idx = 0 ; (unsigned int)idx < byte_count; idx++) {
 		/* Fillup line. */
 		line[line_idx] = char_array[idx];
 
-
 		/* If end of line/string is reached, process */
 		if (line[line_idx] == '\n' || line[line_idx] == '\0') {
 			line[line_idx] = '\0';
 
 			/* Match the line */
 			g_regex_match(regex, line, 0, &mi);
-			if (g_match_info_matches(mi) && color_idx < lines) {
+			if (g_match_info_matches(mi) && color_idx < (unsigned int)lines) {
 				match = g_match_info_fetch_named(mi, "red");
-				palette->color_array[color_idx].red = (double)g_ascii_strtoll(match, NULL, 16) / 255.0;
+				palette->color_array[color_idx].red =
+						(double)g_ascii_strtoll(match, NULL, 16) / 255.0;
 				g_free(match);
 				match = g_match_info_fetch_named(mi, "green");
-				palette->color_array[color_idx].green = (double)g_ascii_strtoll(match, NULL, 16) / 255.0;
+				palette->color_array[color_idx].green =
+						(double)g_ascii_strtoll(match, NULL, 16) / 255.0;
 				g_free(match);
 				match = g_match_info_fetch_named(mi, "blue");
-				palette->color_array[color_idx].blue = (double)g_ascii_strtoll(match, NULL, 16) / 255.0;
+				palette->color_array[color_idx].blue =
+						(double)g_ascii_strtoll(match, NULL, 16) / 255.0;
 				g_free(match);
 
 				/* Only RGB supported so far. Fix alpha channel to 1.0 */
@@ -166,10 +168,10 @@ static int color_palette_fill_with_resource(ColorPalette *palette, char *resourc
 			continue;
 		}
 
-		/* increment line index. If end is reached write all bytes  to the line end
-		 * line is longer than required for parsing. This ensures, that everything works as expected
+		/* increment line index. If end is reached write all bytes  to the line end.
+		 * Line is longer than required for parsing. This ensures, that everything works as expected
 		 */
-		line_idx += (line_idx < sizeof(line)-1 ? 1 : 0);
+		line_idx += ((unsigned int)line_idx < sizeof(line)-1 ? 1 : 0);
 	}
 
 	/* Data read; Shrink array in case of invalid lines */
@@ -177,7 +179,7 @@ static int color_palette_fill_with_resource(ColorPalette *palette, char *resourc
 	palette->color_array_length = color_idx;
 
 	g_regex_unref(regex);
-ret_unref:
+ret_unref_data:
 	g_bytes_unref(data);
 
 	return 0;
@@ -233,8 +235,7 @@ static void color_palette_dispose(GObject *gobj)
 	ColorPalette *palette;
 
 	palette = GDS_RENDER_COLOR_PALETTE(gobj);
-	if (palette->color_array)
-	{
+	if (palette->color_array) {
 		palette->color_array_length = 0;
 		free(palette->color_array);
 	}

layer/layer-selector.c

@@ -54,7 +54,8 @@ struct _LayerSelector {
 
 G_DEFINE_TYPE(LayerSelector, layer_selector, G_TYPE_OBJECT)
 
-/* Drag and drop code 
+/*
+ * Drag and drop code
  * Original code from https://blog.gtk.org/2017/06/01/drag-and-drop-in-lists-revisited/
  */
 
@@ -72,16 +73,16 @@ static void sel_layer_element_drag_begin(GtkWidget *widget, GdkDragContext *cont
 	surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, alloc.width, alloc.height);
 	cr = cairo_create(surface);
 
-	gtk_style_context_add_class (gtk_widget_get_style_context(row), "drag-icon");
-	gtk_widget_draw (row, cr);
+	gtk_style_context_add_class(gtk_widget_get_style_context(row), "drag-icon");
+	gtk_widget_draw(row, cr);
 	gtk_style_context_remove_class(gtk_widget_get_style_context(row), "drag-icon");
 
-	gtk_widget_translate_coordinates (widget, row, 0, 0, &x, &y);
-	cairo_surface_set_device_offset (surface, -x, -y);
-	gtk_drag_set_icon_surface (context, surface);
+	gtk_widget_translate_coordinates(widget, row, 0, 0, &x, &y);
+	cairo_surface_set_device_offset(surface, -x, -y);
+	gtk_drag_set_icon_surface(context, surface);
 
-	cairo_destroy (cr);
-	cairo_surface_destroy (surface);
+	cairo_destroy(cr);
+	cairo_surface_destroy(surface);
 
 	g_object_set_data(G_OBJECT(gtk_widget_get_parent(row)), "drag-row", row);
 	gtk_style_context_add_class(gtk_widget_get_style_context(row), "drag-row");
@@ -115,14 +116,14 @@ static void sel_layer_element_drag_data_get(GtkWidget *widget, GdkDragContext *c
 			       32, (const guchar *)&widget, sizeof(gpointer));
 }
 
-static GtkListBoxRow *layer_selector_get_last_row (GtkListBox *list)
+static GtkListBoxRow *layer_selector_get_last_row(GtkListBox *list)
 {
 	int i;
 	GtkListBoxRow *row;
+	GtkListBoxRow *tmp;
 
 	row = NULL;
 	for (i = 0; ; i++) {
-		GtkListBoxRow *tmp;
 		tmp = gtk_list_box_get_row_at_index(list, i);
 		if (tmp == NULL)
 			break;
@@ -132,15 +133,15 @@ static GtkListBoxRow *layer_selector_get_last_row (GtkListBox *list)
 	return row;
 }
 
-static GtkListBoxRow *layer_selector_get_row_before (GtkListBox *list, GtkListBoxRow *row)
+static GtkListBoxRow *layer_selector_get_row_before(GtkListBox *list, GtkListBoxRow *row)
 {
 	int pos;
 
-	pos = gtk_list_box_row_get_index (row);
-	return gtk_list_box_get_row_at_index (list, pos - 1);
+	pos = gtk_list_box_row_get_index(row);
+	return gtk_list_box_get_row_at_index(list, pos - 1);
 }
 
-static GtkListBoxRow *layer_selector_get_row_after (GtkListBox *list, GtkListBoxRow *row)
+static GtkListBoxRow *layer_selector_get_row_after(GtkListBox *list, GtkListBoxRow *row)
 {
 	int pos;
 
@@ -276,40 +277,40 @@ static void layer_selector_drag_leave(GtkWidget *widget, GdkDragContext *context
 }
 
 static const char *dnd_additional_css =
-  ".row:not(:first-child) { "
-  "  border-top: 1px solid alpha(gray,0.5); "
-  "  border-bottom: 1px solid transparent; "
-  "}"
-  ".row:first-child { "
-  "  border-top: 1px solid transparent; "
-  "  border-bottom: 1px solid transparent; "
-  "}"
-  ".row:last-child { "
-  "  border-top: 1px solid alpha(gray,0.5); "
-  "  border-bottom: 1px solid alpha(gray,0.5); "
-  "}"
-  ".row.drag-icon { "
-  "  background: #282828; "
-  "  border: 1px solid blue; "
-  "}"
-  ".row.drag-row { "
-  "  color: gray; "
-  "  background: alpha(gray,0.2); "
-  "}"
-  ".row.drag-row.drag-hover { "
-  "  border-top: 1px solid #4e9a06; "
-  "  border-bottom: 1px solid #4e9a06; "
-  "}"
-  ".row.drag-hover image, "
-  ".row.drag-hover label { "
-  "  color: #4e9a06; "
-  "}"
-  ".row.drag-hover-top {"
-  "  border-top: 1px solid #4e9a06; "
-  "}"
-  ".row.drag-hover-bottom {"
-  "  border-bottom: 1px solid #4e9a06; "
-  "}";
+	".row:not(:first-child) { "
+	"  border-top: 1px solid alpha(gray,0.5); "
+	"  border-bottom: 1px solid transparent; "
+	"}"
+	".row:first-child { "
+	"  border-top: 1px solid transparent; "
+	"  border-bottom: 1px solid transparent; "
+	"}"
+	".row:last-child { "
+	"  border-top: 1px solid alpha(gray,0.5); "
+	"  border-bottom: 1px solid alpha(gray,0.5); "
+	"}"
+	".row.drag-icon { "
+	"  background: #282828; "
+	"  border: 1px solid blue; "
+	"}"
+	".row.drag-row { "
+	"  color: gray; "
+	"  background: alpha(gray,0.2); "
+	"}"
+	".row.drag-row.drag-hover { "
+	"  border-top: 1px solid #4e9a06; "
+	"  border-bottom: 1px solid #4e9a06; "
+	"}"
+	".row.drag-hover image, "
+	".row.drag-hover label { "
+	"  color: #4e9a06; "
+	"}"
+	".row.drag-hover-top {"
+	"  border-top: 1px solid #4e9a06; "
+	"}"
+	".row.drag-hover-bottom {"
+	"  border-bottom: 1px solid #4e9a06; "
+	"}";
 
 static void layer_selector_dispose(GObject *self)
 {
@@ -348,7 +349,8 @@ static void layer_selector_class_init(LayerSelectorClass *klass)
 
 static void layer_selector_setup_dnd(LayerSelector *self)
 {
-	gtk_drag_dest_set(GTK_WIDGET(self->list_box), GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP, &self->dnd_target, 1, GDK_ACTION_MOVE);
+	gtk_drag_dest_set(GTK_WIDGET(self->list_box), GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP,
+			  &self->dnd_target, 1, GDK_ACTION_MOVE);
 	g_signal_connect(self->list_box, "drag-data-received", G_CALLBACK(layer_selector_drag_data_received), NULL);
 	g_signal_connect(self->list_box, "drag-motion", G_CALLBACK(layer_selector_drag_motion), NULL);
 	g_signal_connect(self->list_box, "drag-leave", G_CALLBACK(layer_selector_drag_leave), NULL);
@@ -398,11 +400,11 @@ LayerSettings *layer_selector_export_rendered_layer_info(LayerSelector *selector
 
 	row_list = gtk_container_get_children(GTK_CONTAINER(selector->list_box));
 
-	for (i = 0,iterator = row_list; iterator != NULL; iterator = g_list_next(iterator), i++) {
+	for (i = 0, iterator = row_list; iterator != NULL; iterator = g_list_next(iterator), i++) {
 		le = LAYER_ELEMENT(iterator->data);
 
 		/* Get name from layer element. This must not be freed */
-		linfo.name =(char *)layer_element_get_name(le);
+		linfo.name = (char *)layer_element_get_name(le);
 
 		layer_element_get_color(le, &linfo.color);
 		linfo.render = (layer_element_get_export(le) ? 1 : 0);
@@ -424,9 +426,9 @@ static void layer_selector_clear_widgets(LayerSelector *self)
 	GList *temp;
 
 	list = gtk_container_get_children(GTK_CONTAINER(self->list_box));
-	for (temp = list; temp != NULL; temp = temp->next) {
+	for (temp = list; temp != NULL; temp = temp->next)
 		gtk_container_remove(GTK_CONTAINER(self->list_box), GTK_WIDGET(temp->data));
-	}
+
 	/* Widgets are already destroyed when removed from box because they are only referenced inside the container */
 
 	g_list_free(list);
@@ -444,7 +446,8 @@ static void layer_selector_clear_widgets(LayerSelector *self)
  * @param layer Layer number to check for
  * @return TRUE if layer is present, else FALSE
  */
-static gboolean layer_selector_check_if_layer_widget_exists(LayerSelector *self, int layer) {
+static gboolean layer_selector_check_if_layer_widget_exists(LayerSelector *self, int layer)
+{
 	GList *list;
 	GList *temp;
 	LayerElement *widget;
@@ -552,9 +555,8 @@ void layer_selector_generate_layer_widgets(LayerSelector *selector, GList *libs)
 
 	for (; libs != NULL; libs = libs->next) {
 		lib = (struct gds_library *)libs->data;
-		for (cell_list = lib->cells; cell_list != NULL; cell_list = cell_list->next) {
+		for (cell_list = lib->cells; cell_list != NULL; cell_list = cell_list->next)
 			layer_selector_analyze_cell_layers(selector, (struct gds_cell *)cell_list->data);
-		} /* For Cell List */
 	} /* For libs */
 
 	/* Sort the layers */
@@ -690,7 +692,8 @@ static void layer_selector_load_mapping_clicked(GtkWidget *button, gpointer user
 
 	sel = LAYER_SELECTOR(user_data);
 
-	dialog = gtk_file_chooser_dialog_new("Load Mapping File", GTK_WINDOW(sel->load_parent_window), GTK_FILE_CHOOSER_ACTION_OPEN,
+	dialog = gtk_file_chooser_dialog_new("Load Mapping File", GTK_WINDOW(sel->load_parent_window),
+					     GTK_FILE_CHOOSER_ACTION_OPEN,
 					     "Cancel", GTK_RESPONSE_CANCEL, "Load Mapping", GTK_RESPONSE_ACCEPT, NULL);
 	res = gtk_dialog_run(GTK_DIALOG(dialog));
 	if (res == GTK_RESPONSE_ACCEPT) {
@@ -735,7 +738,8 @@ static void layer_selector_save_mapping_clicked(GtkWidget *button, gpointer user
 
 	sel = LAYER_SELECTOR(user_data);
 
-	dialog = gtk_file_chooser_dialog_new("Save Mapping File", GTK_WINDOW(sel->save_parent_window), GTK_FILE_CHOOSER_ACTION_SAVE,
+	dialog = gtk_file_chooser_dialog_new("Save Mapping File", GTK_WINDOW(sel->save_parent_window),
+					     GTK_FILE_CHOOSER_ACTION_SAVE,
 					     "Cancel", GTK_RESPONSE_CANCEL, "Save Mapping", GTK_RESPONSE_ACCEPT, NULL);
 	gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(dialog), TRUE);
 
@@ -802,9 +806,8 @@ void layer_selector_select_all_layers(LayerSelector *layer_selector, gboolean se
 
 	for (iter = le_list; iter != NULL; iter = g_list_next(iter)) {
 		le = LAYER_ELEMENT(iter->data);
-		if (LAYER_IS_ELEMENT(le)) {
+		if (LAYER_IS_ELEMENT(le))
 			layer_element_set_export(le, select);
-		}
 	}
 
 	g_list_free(le_list);
@@ -880,4 +883,19 @@ void layer_selector_auto_name_layers(LayerSelector *layer_selector, gboolean ove
 	g_list_free(le_list);
 }
 
+gboolean layer_selector_contains_elements(LayerSelector *layer_selector)
+{
+	GList *layer_element_list;
+
+	/* Check objects */
+	g_return_val_if_fail(LAYER_IS_SELECTOR(layer_selector), FALSE);
+	g_return_val_if_fail(GTK_IS_LIST_BOX(layer_selector->list_box), FALSE);
+
+	/* Get a list of the child elements inside the list boy associated with this selector */
+	layer_element_list = gtk_container_get_children(GTK_CONTAINER(layer_selector->list_box));
+
+	/* Return TRUE if there is an element in the list, else return FALSE */
+	return (layer_element_list ? TRUE : FALSE);
+}
+
 /** @} */

layer/layer-settings.c

@@ -77,9 +77,9 @@ static void layer_settings_class_init(LayerSettingsClass *klass)
  * @brief Copy layer_info struct
  *
  * This function copies a layer info struct.
- * Be aware, that it does not only copy the pointer to the
- * layer name, but instead duplicates the string.
  *
+ * @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
  */

main.c

@@ -26,6 +26,8 @@
 #include <stdio.h>
 #include <gtk/gtk.h>
 #include <glib.h>
+#include <glib/gi18n.h>
+#include <locale.h>
 
 #include <gds-render/gds-render-gui.h>
 #include <gds-render/command-line.h>
@@ -91,8 +93,8 @@ static void app_about(GSimpleAction *action, GVariant *parameter, gpointer user_
 	(void)parameter;
 	GString *comment_text;
 
-	comment_text = g_string_new("gds-render is a free tool for rendering GDS2 layout files into vector graphics.");
-	g_string_append_printf(comment_text, "\n\nFull git commit: %s", _app_git_commit);
+	comment_text = g_string_new(_("gds-render is a free tool for rendering GDS2 layout files into vector graphics."));
+	g_string_append_printf(comment_text, _("\n\nFull git commit: %s"), _app_git_commit);
 
 	builder = gtk_builder_new_from_resource("/gui/about.glade");
 	dialog = GTK_DIALOG(gtk_builder_get_object(builder, "about-dialog"));
@@ -111,7 +113,7 @@ static void app_about(GSimpleAction *action, GVariant *parameter, gpointer user_
 		/* Pixbuf is now owned by about dialog. Unref */
 		g_object_unref(logo_buf);
 	} else if (error) {
-		fprintf(stderr, "Logo could not be displayed: %s\n", error->message);
+		fprintf(stderr, _("Logo could not be displayed: %s\n"), error->message);
 		g_error_free(error);
 	}
 
@@ -125,8 +127,8 @@ static void app_about(GSimpleAction *action, GVariant *parameter, gpointer user_
  * @brief Contains the application menu entries
  */
 static const GActionEntry app_actions[] = {
-	{"quit", app_quit, NULL, NULL, NULL, {0}},
-	{"about", app_about, NULL, NULL, NULL, {0}}
+	{ "quit", app_quit, NULL, NULL, NULL, {0} },
+	{ "about", app_about, NULL, NULL, NULL, {0} },
 };
 
 /**
@@ -156,7 +158,6 @@ static void gapp_activate(GApplication *app, gpointer user_data)
 {
 	GtkWindow *main_window;
 	GdsRenderGui *gui;
-
 	struct application_data * const appdata = (struct application_data *)user_data;
 
 	gui = gds_render_gui_new();
@@ -208,15 +209,15 @@ static int start_gui(int argc, char **argv)
 
 	if (g_application_get_is_remote(G_APPLICATION(gapp)) == TRUE) {
 		g_application_activate(G_APPLICATION(gapp));
-		printf("There is already an open instance. Will open second window in that instance.\n");
+		printf(_("There is already an open instance. Will open second window in that instance.\n"));
 		return 0;
 	}
 
 	menu = g_menu_new();
 	m_quit = g_menu_new();
 	m_about = g_menu_new();
-	g_menu_append(m_quit, "Quit", "app.quit");
-	g_menu_append(m_about, "About", "app.about");
+	g_menu_append(m_quit, _("Quit"), "app.quit");
+	g_menu_append(m_about, _("About"), "app.about");
 	g_menu_append_section(menu, NULL, G_MENU_MODEL(m_about));
 	g_menu_append_section(menu, NULL, G_MENU_MODEL(m_quit));
 	g_action_map_add_action_entries(G_ACTION_MAP(gapp), app_actions,
@@ -240,7 +241,7 @@ static int start_gui(int argc, char **argv)
  */
 static void print_version(void)
 {
-	printf("This is gds-render, version: %s\n\nFor a list of supported commands execute with --help option.\n",
+	printf(_("This is gds-render, version: %s\n\nFor a list of supported commands execute with --help option.\n"),
 	       _app_version_string);
 }
 
@@ -261,32 +262,46 @@ int main(int argc, char **argv)
 	gchar *cellname = NULL;
 	gchar **renderer_args = NULL;
 	gboolean version = FALSE, pdf_standalone = FALSE, pdf_layers = FALSE;
-	gchar *custom_library_path = NULL;
 	int scale = 1000;
 	int app_status = 0;
+	struct external_renderer_params so_render_params;
+
+	so_render_params.so_path = NULL;
+	so_render_params.cli_params = NULL;
+
+	bindtextdomain(GETTEXT_PACKAGE, LOCALEDATADIR "/locale");
+	bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
+	textdomain(GETTEXT_PACKAGE);
 
 	GOptionEntry entries[] = {
-		{"version", 'v', 0, G_OPTION_ARG_NONE, &version, "Print version", NULL},
-		{"renderer", 'r', 0, G_OPTION_ARG_STRING_ARRAY, &renderer_args, "Renderer to use. Can be used multiple times.", "pdf|svg|tikz|ext"},
-		{"scale", 's', 0, G_OPTION_ARG_INT, &scale, "Divide output coordinates by <SCALE>", "<SCALE>" },
-		{"output-file", 'o', 0, G_OPTION_ARG_FILENAME_ARRAY, &output_paths, "Output file path. Can be used multiple times.", "PATH" },
-		{"mapping", 'm', 0, G_OPTION_ARG_FILENAME, &mappingname, "Path for Layer Mapping File", "PATH" },
-		{"cell", 'c', 0, G_OPTION_ARG_STRING, &cellname, "Cell to render", "NAME" },
-		{"tex-standalone", 'a', 0, G_OPTION_ARG_NONE, &pdf_standalone, "Create standalone PDF", NULL },
-		{"tex-layers", 'l', 0, G_OPTION_ARG_NONE, &pdf_layers, "Create PDF Layers (OCG)", NULL },
-		{"custom-render-lib", 'P', 0, G_OPTION_ARG_FILENAME, &custom_library_path, "Path to a custom shared object, that implements the " EXTERNAL_LIBRARY_FUNCTION " function", "PATH"},
-		{NULL}
+		{"version", 'v', 0, G_OPTION_ARG_NONE, &version, _("Print version"), NULL},
+		{"renderer", 'r', 0, G_OPTION_ARG_STRING_ARRAY, &renderer_args,
+			_("Renderer to use. Can be used multiple times."), "pdf|svg|tikz|ext"},
+		{"scale", 's', 0, G_OPTION_ARG_INT, &scale, _("Divide output coordinates by <SCALE>"), "<SCALE>" },
+		{"output-file", 'o', 0, G_OPTION_ARG_FILENAME_ARRAY, &output_paths,
+			_("Output file path. Can be used multiple times."), "PATH" },
+		{"mapping", 'm', 0, G_OPTION_ARG_FILENAME, &mappingname, _("Path for Layer Mapping File"), "PATH" },
+		{"cell", 'c', 0, G_OPTION_ARG_STRING, &cellname, _("Cell to render"), "NAME" },
+		{"tex-standalone", 'a', 0, G_OPTION_ARG_NONE, &pdf_standalone, _("Create standalone TeX"), NULL },
+		{"tex-layers", 'l', 0, G_OPTION_ARG_NONE, &pdf_layers, _("Create PDF Layers (OCG)"), NULL },
+		{"custom-render-lib", 'P', 0, G_OPTION_ARG_FILENAME, &so_render_params.so_path,
+			_("Path to a custom shared object, that implements the necessary rendering functions"), "PATH"},
+		{"render-lib-params", 'W', 0, G_OPTION_ARG_STRING, &so_render_params.cli_params,
+			_("Argument string passed to render lib"), NULL},
+		{NULL, 0, 0, 0, NULL, NULL, NULL}
 	};
 
-	context = g_option_context_new(" FILE - Convert GDS file <FILE> to graphic");
+	context = g_option_context_new(_(" FILE - Convert GDS file <FILE> to graphic"));
 	g_option_context_add_main_entries(context, entries, NULL);
 	g_option_context_add_group(context, gtk_get_option_group(TRUE));
 
 	if (!g_option_context_parse(context, &argc, &argv, &error)) {
-		g_print("Option parsing failed: %s\n", error->message);
+		g_print(_("Option parsing failed: %s\n"), error->message);
 		exit(1);
 	}
 
+	g_option_context_free(context);
+
 	if (version) {
 		print_version();
 		goto ret_status;
@@ -294,7 +309,7 @@ int main(int argc, char **argv)
 
 	if (argc >= 2) {
 		if (scale < 1) {
-			printf("Scale < 1 not allowed. Setting to 1\n");
+			printf(_("Scale < 1 not allowed. Setting to 1\n"));
 			scale = 1;
 		}
 
@@ -302,20 +317,22 @@ int main(int argc, char **argv)
 		gds_name = argv[1];
 
 		/* Print out additional arguments as ignored */
-		for (i = 2; i < argc; i++) {
-			printf("Ignored argument: %s", argv[i]);
-		}
+		for (i = 2; i < argc; i++)
+			printf(_("Ignored argument: %s"), argv[i]);
 
 		app_status =
 			command_line_convert_gds(gds_name, cellname, renderer_args, output_paths, mappingname,
-						 custom_library_path, pdf_standalone, pdf_layers, scale);
+						 &so_render_params, pdf_standalone, pdf_layers, scale);
 
 	} else {
 		app_status = start_gui(argc, argv);
 	}
 
 ret_status:
-	/* If necessary, free command line parameters */
+	/* If necessary, free command line parameters.
+	 * This is only really necessary for automated mem-leak testing.
+	 * Omitting these frees would be perfectly fine.
+	 */
 	if (output_paths)
 		g_strfreev(output_paths);
 	if (renderer_args)
@@ -324,8 +341,10 @@ ret_status:
 		g_free(mappingname);
 	if (cellname)
 		free(cellname);
-	if (custom_library_path)
-		free(custom_library_path);
+	if (so_render_params.so_path)
+		free(so_render_params.so_path);
+	if (so_render_params.cli_params)
+		g_free(so_render_params.cli_params);
 
 	return app_status;
 }

output-renderers/cairo-renderer.c

@@ -17,10 +17,10 @@
  * along with GDSII-Converter.  If not, see <http://www.gnu.org/licenses/>.
  */
 /**
-  * @file cairo-renderer.c
-  * @brief Output renderer for Cairo PDF export
-  * @author Mario Hüttel <mario.huettel@gmx.net>
-  */
+ * @file cairo-renderer.c
+ * @brief Output renderer for Cairo PDF export
+ * @author Mario Hüttel <mario.huettel@gmx.net>
+ */
 
 /** @addtogroup Cairo-Renderer
  *  @{
@@ -31,6 +31,7 @@
 #include <cairo.h>
 #include <cairo-pdf.h>
 #include <cairo-svg.h>
+#include <glib/gi18n.h>
 
 #include <gds-render/output-renderers/cairo-renderer.h>
 #include <sys/wait.h>
@@ -121,7 +122,8 @@ static void render_cell(struct gds_cell *cell, struct cairo_layer *layers, doubl
 	/* Render child cells */
 	for (instance_list = cell->child_cells; instance_list != NULL; instance_list = instance_list->next) {
 		cell_instance = (struct gds_cell_instance *)instance_list->data;
-		if ((temp_cell = cell_instance->cell_ref) != NULL) {
+		temp_cell = cell_instance->cell_ref;
+		if (temp_cell != NULL) {
 			apply_inherited_transform_to_all_layers(layers,
 								&cell_instance->origin,
 								cell_instance->magnification,
@@ -228,8 +230,12 @@ static int read_line_from_fd(int fd, char *buff, size_t buff_size)
  * @param scale Scale the output image down by \p scale
  * @return Error
  */
-static int cairo_renderer_render_cell_to_vector_file(GdsOutputRenderer *renderer, struct gds_cell *cell, GList *layer_infos, const char *pdf_file,
-						     const char *svg_file, double scale)
+static int cairo_renderer_render_cell_to_vector_file(GdsOutputRenderer *renderer,
+						     struct gds_cell *cell,
+						     GList *layer_infos,
+						     const char *pdf_file,
+						     const char *svg_file,
+						     double scale)
 {
 	cairo_surface_t *pdf_surface = NULL, *svg_surface = NULL;
 	cairo_t *pdf_cr = NULL, *svg_cr = NULL;
@@ -262,7 +268,7 @@ static int cairo_renderer_render_cell_to_vector_file(GdsOutputRenderer *renderer
 	//process_id = -1;
 	if (process_id < 0) {
 		/* This should not happen */
-		fprintf(stderr, "Fatal error: Cairo Renderer: Could not spawn child process!");
+		fprintf(stderr, _("Fatal error: Cairo Renderer: Could not spawn child process!"));
 		exit(-2);
 	} else if (process_id > 0) {
 		/* Woohoo... Successfully dumped the shitty code to an unknowing victim */
@@ -312,7 +318,7 @@ static int cairo_renderer_render_cell_to_vector_file(GdsOutputRenderer *renderer
 		linfo = (struct layer_info *)info_list->data;
 
 		if (linfo->layer >= MAX_LAYERS) {
-			printf("Layer outside of Spec.\n");
+			printf(_("Layer number too high / outside of spec.\n"));
 			continue;
 		}
 
@@ -322,7 +328,7 @@ static int cairo_renderer_render_cell_to_vector_file(GdsOutputRenderer *renderer
 		/* Print size */
 		cairo_recording_surface_ink_extents(layers[linfo->layer].rec, &rec_x0, &rec_y0,
 				&rec_width, &rec_height);
-		dprintf(comm_pipe[1], "Size of layer %d%s%s%s: <%lf x %lf> @ (%lf | %lf)\n",
+		dprintf(comm_pipe[1], _("Size of layer %d%s%s%s: <%lf x %lf> @ (%lf | %lf)\n"),
 			linfo->layer,
 			(linfo->name && linfo->name[0] ? " (" : ""),
 			(linfo->name && linfo->name[0] ? linfo->name : ""),
@@ -357,10 +363,10 @@ static int cairo_renderer_render_cell_to_vector_file(GdsOutputRenderer *renderer
 	for (info_list = layer_infos; info_list != NULL; info_list = g_list_next(info_list)) {
 		linfo = (struct layer_info *)info_list->data;
 
-		dprintf(comm_pipe[1], "Exporting layer %d to file\n", linfo->layer);
+		dprintf(comm_pipe[1], _("Exporting layer %d to file\n"), linfo->layer);
 
 		if (linfo->layer >= MAX_LAYERS) {
-			printf("Layer outside of Spec.\n");
+			printf(_("Layer outside of spec.\n"));
 			continue;
 		}
 
@@ -393,14 +399,14 @@ static int cairo_renderer_render_cell_to_vector_file(GdsOutputRenderer *renderer
 ret_clear_layers:
 	for (i = 0; i < MAX_LAYERS; i++) {
 		lay = &layers[i];
-		if(lay->cr) {
+		if (lay->cr) {
 			cairo_destroy(lay->cr);
 			cairo_surface_destroy(lay->rec);
 		}
 	}
 	free(layers);
 
-	printf("Cairo export finished. It might still be buggy!\n");
+	printf(_("Cairo export finished. It might still be buggy!\n"));
 
 	/* Suspend child process */
 	exit(0);
@@ -458,7 +464,7 @@ static int cairo_renderer_render_output(GdsOutputRenderer *renderer,
 	else
 		pdf_file = output_file;
 
-	gds_output_renderer_update_async_progress(renderer, "Rendering Cairo Output...");
+	gds_output_renderer_update_async_progress(renderer, _("Rendering Cairo Output..."));
 	ret = cairo_renderer_render_cell_to_vector_file(renderer, cell, layer_infos, pdf_file, svg_file, scale);
 
 	if (settings)

output-renderers/external-renderer.c

@@ -30,16 +30,23 @@
 
 #include <dlfcn.h>
 #include <stdio.h>
+#include <sys/wait.h>
+#include <glib/gi18n.h>
 
 #include <gds-render/output-renderers/external-renderer.h>
+#include <gds-render/version.h>
+
+#define FORCE_FORK 0U /**< @brief if != 0, then forking is forced regardless of the shared object's settings */
 
 struct _ExternalRenderer {
 	GdsOutputRenderer parent;
 	char *shared_object_path;
+	char *cli_param_string;
 };
 
 enum {
 	PROP_SO_PATH = 1, /**< @brief Shared object path property */
+	PROP_PARAM_STRING, /** @brief Shared object renderer parameter string from CLI */
 	N_PROPERTIES /**< @brief Used to get property count */
 };
 
@@ -52,18 +59,23 @@ G_DEFINE_TYPE(ExternalRenderer, external_renderer, GDS_RENDER_TYPE_OUTPUT_RENDER
  * @param output_file Destination file
  * @param scale the scaling value to scale the output cell down by.
  * @param so_path Path to shared object
+ * @param params Parameters passed to EXTERNAL_LIBRARY_INIT_FUNCTION
  * @return 0 if successful
  */
 static int external_renderer_render_cell(struct gds_cell *toplevel_cell, GList *layer_info_list,
-				   const char *output_file, double scale,  const char *so_path)
+				   const char *output_file, double scale,  const char *so_path, const char *params)
 {
 	int (*so_render_func)(struct gds_cell *, GList *, const char *, double) = NULL;
+	int (*so_init_func)(const char *, const char *) = NULL;
 	void *so_handle = NULL;
 	char *error_msg;
+	int forking_req;
 	int ret = 0;
+	pid_t fork_pid = 0;
+	int forked_status;
 
 	if (!so_path) {
-		fprintf(stderr, "Path to shared object not set!\n");
+		fprintf(stderr, _("Path to shared object not set!\n"));
 		return -3000;
 	}
 
@@ -74,25 +86,61 @@ static int external_renderer_render_cell(struct gds_cell *toplevel_cell, GList *
 	/* Load shared object */
 	so_handle = dlopen(so_path, RTLD_LAZY);
 	if (!so_handle) {
-		fprintf(stderr, "Could not load external library '%s'\nDetailed error is:\n%s\n", so_path, dlerror());
+		fprintf(stderr, _("Could not load external library '%s'\nDetailed error is:\n%s\n"), so_path, dlerror());
 		return -2000;
 	}
 
-	/* Load symbol from library */
-	so_render_func = (int (*)(struct gds_cell *, GList *, const char *, double))dlsym(so_handle, EXTERNAL_LIBRARY_FUNCTION);
+	/* Load rendering symbol from library */
+	so_render_func = (int (*)(struct gds_cell *, GList *, const char *, double))
+				dlsym(so_handle, xstr(EXTERNAL_LIBRARY_RENDER_FUNCTION));
 	error_msg = dlerror();
 	if (error_msg != NULL) {
-		fprintf(stderr, "Rendering function not found in library:\n%s\n", error_msg);
+		fprintf(stderr, _("Rendering function not found in library:\n%s\n"), error_msg);
 		goto ret_close_so_handle;
 	}
 
-	/* Execute */
-	if (so_render_func) {
-		g_message("Calling external renderer.");
-		ret = so_render_func(toplevel_cell, layer_info_list, output_file, scale);
-		g_message("External renderer finished.");
+	/* Load the init function */
+	so_init_func = (int (*)(const char *, const char *))dlsym(so_handle, xstr(EXTERNAL_LIBRARY_INIT_FUNCTION));
+	error_msg = dlerror();
+	if (error_msg != NULL) {
+		fprintf(stderr, _("Init function not found in library:\n%s\n"), error_msg);
+		goto ret_close_so_handle;
 	}
 
+	/* Check if forking is requested */
+	if (dlsym(so_handle, xstr(EXTERNAL_LIBRARY_FORK_REQUEST)))
+		forking_req = 1;
+	else if (FORCE_FORK)
+		forking_req = 1;
+	else
+		forking_req = 0;
+
+	/* Execute */
+
+	g_message(_("Calling external renderer."));
+
+	if (forking_req)
+		fork_pid = fork();
+	if (fork_pid != 0)
+		goto end_forked;
+
+	ret = so_init_func(params, _app_version_string);
+	if (!ret)
+		ret = so_render_func(toplevel_cell, layer_info_list, output_file, scale);
+
+	/* If we are in a separate process, terminate here */
+	if (forking_req)
+		exit(ret);
+
+	/* The forked paths end here */
+end_forked:
+	if (forking_req) {
+		waitpid(fork_pid, &forked_status, 0);
+		ret = WEXITSTATUS(forked_status);
+	}
+
+	g_message(_("External renderer finished."));
+
 ret_close_so_handle:
 	dlclose(so_handle);
 	return ret;
@@ -115,7 +163,8 @@ static int external_renderer_render_output(GdsOutputRenderer *renderer,
 	if (settings)
 		layer_infos = layer_settings_get_layer_info_list(settings);
 
-	ret = external_renderer_render_cell(cell, layer_infos, output_file, scale, ext_renderer->shared_object_path);
+	ret = external_renderer_render_cell(cell, layer_infos, output_file, scale, ext_renderer->shared_object_path,
+					    ext_renderer->cli_param_string);
 	if (settings)
 		g_object_unref(settings);
 
@@ -132,8 +181,11 @@ static void external_renderer_get_property(GObject *obj, guint property_id, GVal
 	case PROP_SO_PATH:
 		g_value_set_string(value, self->shared_object_path);
 		break;
+	case PROP_PARAM_STRING:
+		g_value_set_string(value, self->cli_param_string);
+		break;
 	default:
-		G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, property_id, pspec);
+		G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, property_id, pspec);
 		break;
 	}
 }
@@ -150,6 +202,11 @@ static void external_renderer_set_property(GObject *obj, guint property_id, cons
 			g_free(self->shared_object_path);
 		self->shared_object_path = g_value_dup_string(value);
 		break;
+	case PROP_PARAM_STRING:
+		if (self->cli_param_string)
+			g_free(self->cli_param_string);
+		self->cli_param_string = g_value_dup_string(value);
+		break;
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, property_id, pspec);
 		break;
@@ -158,7 +215,9 @@ static void external_renderer_set_property(GObject *obj, guint property_id, cons
 
 static void external_renderer_dispose(GObject *self_obj)
 {
-	ExternalRenderer *self = GDS_RENDER_EXTERNAL_RENDERER(self_obj);
+	ExternalRenderer *self;
+
+	self = GDS_RENDER_EXTERNAL_RENDERER(self_obj);
 
 	if (self->shared_object_path) {
 		g_free(self->shared_object_path);
@@ -188,9 +247,15 @@ static void external_renderer_class_init(ExternalRendererClass *klass)
 
 	/* Setup properties */
 	external_renderer_properties[PROP_SO_PATH] =
-			g_param_spec_string("shared-object-path",
-					    "Shared object file path",
-					    "Path to the shared object to search rendering function in.",
+			g_param_spec_string(N_("shared-object-path"),
+					    N_("Shared object file path"),
+					    N_("Path to the shared object to search rendering function in."),
+					    NULL,
+					    G_PARAM_READWRITE);
+	external_renderer_properties[PROP_PARAM_STRING] =
+			g_param_spec_string(N_("param-string"),
+					    N_("Shared object renderer parameter string"),
+					    N_("Command line arguments passed to the external shared object renderer"),
 					    NULL,
 					    G_PARAM_READWRITE);
 	g_object_class_install_properties(oclass, N_PROPERTIES, external_renderer_properties);
@@ -199,6 +264,7 @@ static void external_renderer_class_init(ExternalRendererClass *klass)
 static void external_renderer_init(ExternalRenderer *self)
 {
 	self->shared_object_path = NULL;
+	self->cli_param_string = NULL;
 }
 
 ExternalRenderer *external_renderer_new()
@@ -206,9 +272,10 @@ ExternalRenderer *external_renderer_new()
 	return g_object_new(GDS_RENDER_TYPE_EXTERNAL_RENDERER, NULL);
 }
 
-ExternalRenderer *external_renderer_new_with_so(const char *so_path)
+ExternalRenderer *external_renderer_new_with_so_and_param(const char *so_path, const char *param_string)
 {
-	return g_object_new(GDS_RENDER_TYPE_EXTERNAL_RENDERER, "shared-object-path", so_path, NULL);
+	return g_object_new(GDS_RENDER_TYPE_EXTERNAL_RENDERER, N_("shared-object-path"), so_path,
+				N_("param-string"), param_string, NULL);
 }
 
 /** @} */

output-renderers/gds-output-renderer.c

@@ -18,16 +18,17 @@
  */
 
 /**
-  * @file gds-output-renderer.c
-  * @brief Base GObject class for output renderers
-  * @author Mario Hüttel <mario.huettel@gmx.net>
-  */
+ * @file gds-output-renderer.c
+ * @brief Base GObject class for output renderers
+ * @author Mario Hüttel <mario.huettel@gmx.net>
+ */
 
 /** @addtogroup GdsOutputRenderer
  *  @{
  */
 
 #include <gds-render/output-renderers/gds-output-renderer.h>
+#include <glib/gi18n.h>
 
 struct renderer_params {
 		struct gds_cell *cell;
@@ -70,7 +71,7 @@ static int gds_output_renderer_render_dummy(GdsOutputRenderer *renderer,
 	(void)cell;
 	(void)scale;
 
-	g_warning("Output renderer does not define a render_output function!");
+	g_warning(_("Output renderer does not define a render_output function!"));
 	return 0;
 }
 
@@ -168,17 +169,17 @@ static void gds_output_renderer_class_init(GdsOutputRendererClass *klass)
 
 	/* Setup properties */
 	gds_output_renderer_properties[PROP_OUTPUT_FILE] =
-			g_param_spec_string("output-file", "output file", "Output file for renderer",
+			g_param_spec_string(N_("output-file"), N_("output file"), N_("Output file for renderer"),
 					    NULL, G_PARAM_READWRITE);
 	gds_output_renderer_properties[PROP_LAYER_SETTINGS] =
-			g_param_spec_object("layer-settings", "Layer Settings object",
-					    "Object containing the layer rendering information",
+			g_param_spec_object(N_("layer-settings"), N_("Layer Settings object"),
+					    N_("Object containing the layer rendering information"),
 					    GDS_RENDER_TYPE_LAYER_SETTINGS, G_PARAM_READWRITE);
 	g_object_class_install_properties(oclass, N_PROPERTIES, gds_output_renderer_properties);
 
 	/* Setup output signals */
 	gds_output_renderer_signals[ASYNC_FINISHED] =
-			g_signal_newv("async-finished", GDS_RENDER_TYPE_OUTPUT_RENDERER,
+			g_signal_newv(N_("async-finished"), GDS_RENDER_TYPE_OUTPUT_RENDERER,
 				      G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE,
 				      NULL,
 				      NULL,
@@ -188,7 +189,7 @@ static void gds_output_renderer_class_init(GdsOutputRendererClass *klass)
 				      0,
 				      NULL);
 	gds_output_renderer_signals[ASYNC_PROGRESS_CHANGED] =
-			g_signal_newv("progress-changed", GDS_RENDER_TYPE_OUTPUT_RENDERER,
+			g_signal_newv(N_("progress-changed"), GDS_RENDER_TYPE_OUTPUT_RENDERER,
 				      G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE,
 				      NULL,
 				      NULL,
@@ -213,8 +214,6 @@ void gds_output_renderer_init(GdsOutputRenderer *self)
 	priv->idle_function_parameters.status_message = NULL;
 	g_mutex_init(&priv->settings_lock);
 	g_mutex_init(&priv->idle_function_parameters.message_lock);
-
-	return;
 }
 
 GdsOutputRenderer *gds_output_renderer_new()
@@ -225,8 +224,8 @@ GdsOutputRenderer *gds_output_renderer_new()
 GdsOutputRenderer *gds_output_renderer_new_with_props(const char *output_file, LayerSettings *layer_settings)
 {
 	return GDS_RENDER_OUTPUT_RENDERER(g_object_new(GDS_RENDER_TYPE_OUTPUT_RENDERER,
-						       "layer-settings", layer_settings,
-						       "output-file", output_file,
+						       N_("layer-settings"), layer_settings,
+						       N_("output-file"), output_file,
 						       NULL));
 }
 
@@ -237,14 +236,14 @@ void gds_output_renderer_set_output_file(GdsOutputRenderer *renderer, const gcha
 	/* Check if the filename is actually filled */
 	if (!file_name || !file_name[0])
 		return;
-	g_object_set(renderer, "output-file", file_name, NULL);
+	g_object_set(renderer, N_("output-file"), file_name, NULL);
 }
 
 const char *gds_output_renderer_get_output_file(GdsOutputRenderer *renderer)
 {
 	const char *file = NULL;
 
-	g_object_get(renderer, "output-file", &file, NULL);
+	g_object_get(renderer, N_("output-file"), &file, NULL);
 	return file;
 }
 
@@ -259,7 +258,7 @@ LayerSettings *gds_output_renderer_get_and_ref_layer_settings(GdsOutputRenderer
 	g_mutex_lock(&priv->settings_lock);
 
 	/* This function seems to already reference the LayerSettings object */
-	g_object_get(renderer, "layer-settings", &ret, NULL);
+	g_object_get(renderer, N_("layer-settings"), &ret, NULL);
 
 	/* It is now safe to clear the lock */
 	g_mutex_unlock(&priv->settings_lock);
@@ -271,7 +270,7 @@ void gds_output_renderer_set_layer_settings(GdsOutputRenderer *renderer, LayerSe
 {
 	g_return_if_fail(GDS_RENDER_IS_LAYER_SETTINGS(settings));
 
-	g_object_set(renderer, "layer-settings", settings, NULL);
+	g_object_set(renderer, N_("layer-settings"), settings, NULL);
 }
 
 int gds_output_renderer_render_output(GdsOutputRenderer *renderer, struct gds_cell *cell, double scale)
@@ -281,28 +280,28 @@ int gds_output_renderer_render_output(GdsOutputRenderer *renderer, struct gds_ce
 	GdsOutputRendererPrivate *priv = gds_output_renderer_get_instance_private(renderer);
 
 	if (GDS_RENDER_IS_OUTPUT_RENDERER(renderer) == FALSE) {
-		g_error("Output Renderer not valid.");
+		g_error(_("Output Renderer not valid."));
 		return GDS_OUTPUT_RENDERER_GEN_ERR;
 	}
 
 	if (!priv->output_file || !priv->output_file[0]) {
-		g_error("No/invalid output file set.");
+		g_error(_("No/invalid output file set."));
 		return GDS_OUTPUT_RENDERER_GEN_ERR;
 	}
 
 	if (!priv->layer_settings) {
-		g_error("No layer specification supplied.");
+		g_error(_("No layer specification supplied."));
 		return GDS_OUTPUT_RENDERER_GEN_ERR;
 	}
 
 	if (!cell) {
-		g_error("Output renderer called without cell to render.");
+		g_error(_("Output renderer called without cell to render."));
 		return GDS_OUTPUT_RENDERER_PARAM_ERR;
 	}
 
 	klass = GDS_RENDER_OUTPUT_RENDERER_GET_CLASS(renderer);
 	if (klass->render_output == NULL) {
-		g_critical("Output Renderer: Rendering function broken. This is a bug.");
+		g_critical(_("Output Renderer: Rendering function broken. This is a bug."));
 		return GDS_OUTPUT_RENDERER_GEN_ERR;
 	}
 
@@ -328,7 +327,7 @@ static void gds_output_renderer_async_wrapper(GTask *task,
 		ret = -1000;
 		goto ret_from_task;
 	}
-	if(!priv->mutex_init_status) {
+	if (!priv->mutex_init_status) {
 		ret = -1001;
 		goto ret_from_task;
 	}
@@ -363,12 +362,14 @@ int gds_output_renderer_render_output_async(GdsOutputRenderer *renderer, struct
 
 	priv = gds_output_renderer_get_instance_private(renderer);
 	if (priv->task) {
-		g_warning("renderer already started asynchronously");
+		g_warning(_("Renderer already started asynchronously"));
 		return -2000;
 	}
 
 	priv->task = g_task_new(renderer, NULL, gds_output_renderer_async_finished, NULL);
-	g_task_set_name(priv->task, "Rendering Thread");
+	
+	/* This function is not available on current debian distros. */
+	/* g_task_set_name(priv->task, "Rendering Thread"); */
 
 	g_mutex_lock(&priv->settings_lock);
 	priv->async_params.cell = cell;

output-renderers/latex-renderer.c

@@ -27,6 +27,8 @@
 #include <stdio.h>
 #include <gds-render/output-renderers/latex-renderer.h>
 #include <gdk/gdk.h>
+#include <glib/gi18n.h>
+
 /**
  * @addtogroup LaTeX-Renderer
  * @{
@@ -140,7 +142,8 @@ static gboolean write_layer_env(FILE *tex_file, GdkRGBA *color, int layer, GList
 			color->red = inf->color.red;
 			color->green = inf->color.green;
 			color->blue = inf->color.blue;
-			g_string_printf(buffer, "\\begin{pgfonlayer}{l%d}\n\\ifcreatepdflayers\n\\begin{scope}[ocg={ref=%d, status=visible,name={%s}}]\n\\fi\n",
+			g_string_printf(buffer,
+					"\\begin{pgfonlayer}{l%d}\n\\ifcreatepdflayers\n\\begin{scope}[ocg={ref=%d, status=visible,name={%s}}]\n\\fi\n",
 					layer, layer, inf->name);
 			WRITEOUT_BUFFER(buffer);
 			return TRUE;
@@ -167,21 +170,26 @@ static void generate_graphics(FILE *tex_file, GList *graphics, GList *linfo, GSt
 	struct gds_graphics *gfx;
 	struct gds_point *pt;
 	GdkRGBA color;
-	static const char *line_caps[] = {"butt", "round", "rect"};
+	static const char * const line_caps[] = {"butt", "round", "rect"};
 
 	for (temp = graphics; temp != NULL; temp = temp->next) {
 		gfx = (struct gds_graphics *)temp->data;
 		if (write_layer_env(tex_file, &color, (int)gfx->layer, linfo, buffer) == TRUE) {
 
 			/* Layer is defined => create graphics */
-			if (gfx->gfx_type == GRAPHIC_POLYGON || gfx->gfx_type == GRAPHIC_BOX ) {
-				g_string_printf(buffer, "\\draw[line width=0.00001 pt, draw={c%d}, fill={c%d}, fill opacity={%lf}] ",
+			if (gfx->gfx_type == GRAPHIC_POLYGON || gfx->gfx_type == GRAPHIC_BOX) {
+				g_string_printf(buffer,
+						"\\draw[line width=0.00001 pt, draw={c%d}, fill={c%d}, fill opacity={%lf}] ",
 						gfx->layer, gfx->layer, color.alpha);
 				WRITEOUT_BUFFER(buffer);
 				/* Append vertices */
-				for (temp_vertex = gfx->vertices; temp_vertex != NULL; temp_vertex = temp_vertex->next) {
+				for (temp_vertex = gfx->vertices;
+				     temp_vertex != NULL;
+				     temp_vertex = temp_vertex->next) {
 					pt = (struct gds_point *)temp_vertex->data;
-					g_string_printf(buffer, "(%lf pt, %lf pt) -- ", ((double)pt->x)/scale, ((double)pt->y)/scale);
+					g_string_printf(buffer, "(%lf pt, %lf pt) -- ",
+							((double)pt->x)/scale,
+							((double)pt->y)/scale);
 					WRITEOUT_BUFFER(buffer);
 				}
 				g_string_printf(buffer, "cycle;\n");
@@ -204,7 +212,9 @@ static void generate_graphics(FILE *tex_file, GList *graphics, GList *linfo, GSt
 				WRITEOUT_BUFFER(buffer);
 
 				/* Append vertices */
-				for (temp_vertex = gfx->vertices; temp_vertex != NULL; temp_vertex = temp_vertex->next) {
+				for (temp_vertex = gfx->vertices;
+				     temp_vertex != NULL;
+				     temp_vertex = temp_vertex->next) {
 					pt = (struct gds_point *)temp_vertex->data;
 					g_string_printf(buffer, "(%lf pt, %lf pt)%s",
 							((double)pt->x)/scale,
@@ -240,7 +250,7 @@ static void render_cell(struct gds_cell *cell, GList *layer_infos, FILE *tex_fil
 	struct gds_cell_instance *inst;
 
 	status = g_string_new(NULL);
-	g_string_printf(status, "Generating cell %s", cell->name);
+	g_string_printf(status, _("Generating cell %s"), cell->name);
 	gds_output_renderer_update_async_progress(renderer, status->str);
 	g_string_free(status, TRUE);
 
@@ -257,13 +267,14 @@ static void render_cell(struct gds_cell *cell, GList *layer_infos, FILE *tex_fil
 
 		/* generate translation scope */
 		g_string_printf(buffer, "\\begin{scope}[shift={(%lf pt,%lf pt)}]\n",
-				((double)inst->origin.x)/scale,((double)inst->origin.y)/scale);
+				((double)inst->origin.x) / scale, ((double)inst->origin.y) / scale);
 		WRITEOUT_BUFFER(buffer);
 
 		g_string_printf(buffer, "\\begin{scope}[rotate=%lf]\n", inst->angle);
 		WRITEOUT_BUFFER(buffer);
 
-		g_string_printf(buffer, "\\begin{scope}[yscale=%lf, xscale=%lf]\n", (inst->flipped ? -1*inst->magnification : inst->magnification),
+		g_string_printf(buffer, "\\begin{scope}[yscale=%lf, xscale=%lf]\n",
+				(inst->flipped ? -1*inst->magnification : inst->magnification),
 				inst->magnification);
 		WRITEOUT_BUFFER(buffer);
 
@@ -302,7 +313,8 @@ static int latex_render_cell_to_code(struct gds_cell *cell, GList *layer_infos,
 	WRITEOUT_BUFFER(working_line);
 	g_string_printf(working_line, "\\iftestmode\n");
 	WRITEOUT_BUFFER(working_line);
-	g_string_printf(working_line, "\\documentclass[tikz]{standalone}\n\\usepackage{xcolor}\n\\usetikzlibrary{ocgx}\n\\begin{document}\n");
+	g_string_printf(working_line,
+			"\\documentclass[tikz]{standalone}\n\\usepackage{xcolor}\n\\usetikzlibrary{ocgx}\n\\begin{document}\n");
 	WRITEOUT_BUFFER(working_line);
 	g_string_printf(working_line, "\\fi\n");
 	WRITEOUT_BUFFER(working_line);
@@ -358,12 +370,11 @@ static int latex_renderer_render_output(GdsOutputRenderer *renderer,
 						l_renderer->pdf_layers, l_renderer->tex_standalone, renderer);
 		fclose(tex_file);
 	} else {
-		g_error("Could not open LaTeX output file");
+		g_error(_("Could not open LaTeX output file"));
 	}
 
-	if (settings) {
+	if (settings)
 		g_object_unref(settings);
-	}
 
 	return ret;
 }
@@ -424,14 +435,14 @@ static void latex_renderer_class_init(LatexRendererClass *klass)
 
 	latex_renderer_properties[PROP_STANDALONE] =
 			g_param_spec_boolean("standalone",
-					     "Standalone TeX file",
-					     "Generate a standalone LaTeX file.",
+					     N_("Standalone TeX file"),
+					     N_("Generate a standalone LaTeX file."),
 					     FALSE,
 					     G_PARAM_READWRITE);
 	latex_renderer_properties[PROP_PDF_LAYERS] =
 			g_param_spec_boolean("pdf-layers",
-					     "PDF OCR layers",
-					     "Generate OCR layers",
+					     N_("PDF OCR layers"),
+					     N_("Generate OCR layers"),
 					     FALSE,
 					     G_PARAM_READWRITE);
 

plugins/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_subdirectory(plugin-example)
+add_custom_target(plugins DEPENDS pluginexample)

plugins/plugin-example/CMakeLists.txt

@@ -0,0 +1,14 @@
+project(pluginexample)
+cmake_minimum_required(VERSION 2.8)
+find_package(PkgConfig REQUIRED)
+pkg_search_module(PYTHON REQUIRED python3)
+
+aux_source_directory(src SOURCES)
+
+include_directories(${PYTHON_INCLUDE_DIRS} ${CMAKE_CURRENT_SOURCE_DIR}/include)
+link_libraries(${PYTHON_LDFLAGS} version)
+
+add_library(${PROJECT_NAME} SHARED EXCLUDE_FROM_ALL ${SOURCES})
+add_dependencies(${PROJECT_NAME} version)
+set_target_properties(${PROJECT_NAME} PROPERTIES C_VISIBILITY_PRESET hidden)
+set_target_properties(${PROJECT_NAME} PROPERTIES CXX_VISIBILITY_PRESET hidden)

plugins/plugin-example/src/plugin-main.c

@@ -0,0 +1,49 @@
+/*
+ * GDSII-Converter example plugin
+ * 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/>.
+ */
+
+/**
+ * @defgroup example-plugin Example Plugin for External Renderer
+ * @ingroup plugins
+ * This is a template / example for an external renderer plugin
+ * @addtogroup example-plugin
+ * @{
+ */
+
+
+#include <stdio.h>
+#include <glib.h>
+#include <gds-render/gds-utils/gds-types.h>
+#include <gds-render/output-renderers/external-renderer-interfaces.h>
+
+int EXPORTED_FUNC_DECL(EXTERNAL_LIBRARY_RENDER_FUNCTION)(struct gds_cell *toplevel, GList *layer_info_list, const char *output_file_name, double scale)
+{
+	if (!toplevel)
+		return -1000;
+
+	printf("Rendering %s\n", toplevel->name);
+	return 0;
+}
+
+int EXPORTED_FUNC_DECL(EXTERNAL_LIBRARY_INIT_FUNCTION)(const char *params, const char *version)
+{
+	printf("Init with params: %s\ngds-render version: %s\n", params, version);
+	return 0;
+}
+
+/** @} */

resources/main.glade

@@ -20,6 +20,7 @@
   <object class="GtkImage" id="save-mapping-img">
     <property name="visible">True</property>
     <property name="can_focus">False</property>
+    <property name="tooltip_text" translatable="yes">Save the current layer configuration to CSV</property>
     <property name="stock">gtk-save-as</property>
   </object>
   <object class="GtkImage" id="select-all-img">
@@ -46,7 +47,7 @@
         <property name="name">header</property>
         <property name="visible">True</property>
         <property name="can_focus">False</property>
-        <property name="title" translatable="yes">GDS Renderer</property>
+        <property name="title" translatable="yes">GDS-Render</property>
         <property name="show_close_button">True</property>
         <child>
           <object class="GtkButton" id="button-load-gds">
@@ -54,6 +55,7 @@
             <property name="visible">True</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
+            <property name="tooltip_text" translatable="yes">Open GDS2 Database</property>
             <property name="use_stock">True</property>
             <property name="always_show_image">True</property>
             <style>
@@ -68,6 +70,7 @@
             <property name="sensitive">False</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
+            <property name="tooltip_text" translatable="yes">Load the current layer configuration from CSV</property>
             <property name="image">load-mapping-img</property>
             <property name="always_show_image">True</property>
             <style>
@@ -103,6 +106,7 @@
             <property name="sensitive">False</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
+            <property name="tooltip_text" translatable="yes">Convert selected cell</property>
             <property name="use_stock">True</property>
             <property name="always_show_image">True</property>
             <style>
@@ -188,6 +192,7 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="receives_default">True</property>
+                        <property name="tooltip_text" translatable="yes">Sort layers ascending</property>
                         <property name="image">sort-up-img</property>
                         <property name="always_show_image">True</property>
                       </object>
@@ -202,6 +207,7 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="receives_default">True</property>
+                        <property name="tooltip_text" translatable="yes">Sort layers descending</property>
                         <property name="image">sort-down-img</property>
                         <property name="always_show_image">True</property>
                       </object>
@@ -216,6 +222,7 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="receives_default">True</property>
+                        <property name="tooltip_text" translatable="yes">Automatically color layers</property>
                         <property name="image">color-img</property>
                         <property name="always_show_image">True</property>
                       </object>
@@ -230,6 +237,7 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="receives_default">True</property>
+                        <property name="tooltip_text" translatable="yes">Select all layers for export</property>
                         <property name="image">select-all-img</property>
                         <property name="always_show_image">True</property>
                       </object>
@@ -244,6 +252,7 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="receives_default">True</property>
+                        <property name="tooltip_text" translatable="yes">Automatically name layers</property>
                         <property name="image">auto-name-img</property>
                         <property name="always_show_image">True</property>
                       </object>
@@ -264,6 +273,7 @@
                   <object class="GtkScrolledWindow">
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
+                    <property name="margin_top">1</property>
                     <property name="hscrollbar_policy">never</property>
                     <property name="shadow_type">in</property>
                     <child>

translations/CMakeLists.txt

@@ -0,0 +1,16 @@
+add_custom_target(translations
+	                DEPENDS
+			        "${PROJECT_BINARY_DIR}/translations/output/"
+		)
+
+add_custom_command(DEPENDS
+	                 "${CMAKE_CURRENT_SOURCE_DIR}/pot/po/*"
+		   OUTPUT
+		         "${PROJECT_BINARY_DIR}/translations/output/"
+		   COMMAND
+		       COMMAND  ./generate-mo.sh "${PROJECT_BINARY_DIR}/translations/output"
+		   WORKING_DIRECTORY
+		        ${CMAKE_CURRENT_SOURCE_DIR}
+		   COMMENT
+		         "Generating translation locales"
+		   )

translations/generate-mo.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+SOURCE="${BASH_SOURCE[0]}"
+while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
+  DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null && pwd )"
+  SOURCE="$(readlink "$SOURCE")"
+  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+done
+DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null && pwd )"
+cd "$DIR"
+
+if [ -z $1 ]; then
+	echo "Must supply an output name"
+	exit -2
+fi
+
+for langdir in `find ./pot/po -mindepth 1 -maxdepth 1 -type d`; do
+	lang=`basename "$langdir"`
+	dest="$1/locale/$lang/LC_MESSAGES"
+	mkdir -p "$dest"
+	pofiles=`find "$langdir" -name "*.po" | tr '\n' ' '`
+	comb=`msgcat $pofiles`
+	echo "$comb" | msgfmt --output-file="$dest/gds-render.mo" -
+done

translations/generate_templates.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+SOURCE="${BASH_SOURCE[0]}"
+while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
+  DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null && pwd )"
+  SOURCE="$(readlink "$SOURCE")"
+  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+done
+DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null && pwd )"
+cd "$DIR"
+
+files=`find ../ -name "*.c"`
+mkdir -p "pot"
+
+# C Files
+
+pot="pot/gds-render.pot"
+
+for file in $files; do
+	echo "Parsing C file $file"
+	# pot="pot/"$(echo "${file#*/}" | sed -e "s/\//_/g")
+	# pot="${pot%.c}.pot"
+	if [[ -f "$pot" ]]; then
+		xgettext --package-name="gds-render" --join-existing --keyword=_ --language=C --add-comments --sort-output -o "$pot" "$file"
+	else
+		xgettext --package-name="gds-render" --keyword=_ --language=C --add-comments --sort-output -o "$pot" "$file"
+	fi
+done
+
+# Glade files
+glade_files=`find ../resources/ -name "*.glade"`
+for glade in $glade_files; do
+	echo "Parsing Glade file $glade"
+	if [[ -f "$pot" ]]; then
+		xgettext --package-name="gds-render" --join-existing --keyword=_ -L Glade --sort-output -o "$pot" "$glade"
+	else
+		xgettext --package-name="gds-render" --keyword=_ -L Glade --sort-output -o "$pot" "$glade"
+	fi
+done

translations/pot/gds-render.pot

@@ -0,0 +1,456 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the gds-render package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: gds-render\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-12-16 18:27+0100\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../main.c:97
+#, c-format
+msgid ""
+"\n"
+"\n"
+"Full git commit: %s"
+msgstr ""
+
+#: ../main.c:294
+msgid " FILE - Convert GDS file <FILE> to graphic"
+msgstr ""
+
+#: ../resources/about.glade:10
+msgid "!! Replaced during runtime !!"
+msgstr ""
+
+#: ../command-line.c:205
+#, c-format
+msgid "%d reference loops found.\n"
+msgstr ""
+
+#: ../main.c:220
+msgid "About"
+msgstr ""
+
+#: ../main.c:290
+msgid "Argument string passed to render lib"
+msgstr ""
+
+#: ../resources/main.glade:225
+msgid "Automatically color layers"
+msgstr ""
+
+#: ../resources/main.glade:255
+msgid "Automatically name layers"
+msgstr ""
+
+#: ../gds-utils/gds-tree-checker.c:71
+#, c-format
+msgid "Broken cell list item found in cell %s. Will continue.\n"
+msgstr ""
+
+#: ../gds-utils/gds-tree-checker.c:57
+#, c-format
+msgid "Broken cell list item found. Will continue.\n"
+msgstr ""
+
+#: ../output-renderers/cairo-renderer.c:409
+#, c-format
+msgid "Cairo export finished. It might still be buggy!\n"
+msgstr ""
+
+#. Execute
+#: ../output-renderers/external-renderer.c:120
+msgid "Calling external renderer."
+msgstr ""
+
+#: ../gds-render-gui.c:286 ../widgets/conv-settings-dialog.c:291
+msgid "Cancel"
+msgstr ""
+
+#: ../gds-render-gui.c:244
+msgid "Cell"
+msgstr ""
+
+#: ../command-line.c:209
+#, c-format
+msgid "Cell is affected by reference loop. Abort!\n"
+msgstr ""
+
+#: ../main.c:284
+msgid "Cell to render"
+msgstr ""
+
+#: ../command-line.c:215
+#, c-format
+msgid ""
+"Cell was not checked. This should not happen. Please report this issue. Will "
+"continue either way.\n"
+msgstr ""
+
+#: ../command-line.c:202
+#, c-format
+msgid "Checking library %s failed.\n"
+msgstr ""
+
+#: ../resources/dialog.glade:79
+msgid "Configure LaTeX as standalone document"
+msgstr ""
+
+#: ../resources/main.glade:109
+msgid "Convert selected cell"
+msgstr ""
+
+#: ../output-renderers/external-renderer.c:89
+#, c-format
+msgid ""
+"Could not load external library '%s'\n"
+"Detailed error is:\n"
+"%s\n"
+msgstr ""
+
+#: ../output-renderers/latex-renderer.c:373
+msgid "Could not open LaTeX output file"
+msgstr ""
+
+#: ../command-line.c:195
+#, c-format
+msgid "Couldn't find cell in first library!\n"
+msgstr ""
+
+#: ../command-line.c:81
+#, c-format
+msgid "Count of renderers %d does not match count of output file names %d\n"
+msgstr ""
+
+#: ../main.c:286
+msgid "Create PDF Layers (OCG)"
+msgstr ""
+
+#: ../main.c:285
+msgid "Create standalone TeX"
+msgstr ""
+
+#: ../main.c:280
+msgid "Divide output coordinates by <SCALE>"
+msgstr ""
+
+#: ../resources/layer-widget.glade:62
+msgid "Export Layer"
+msgstr ""
+
+#: ../output-renderers/cairo-renderer.c:366
+#, c-format
+msgid "Exporting layer %d to file\n"
+msgstr ""
+
+#: ../output-renderers/external-renderer.c:142
+msgid "External renderer finished."
+msgstr ""
+
+#. This should not happen
+#: ../output-renderers/cairo-renderer.c:271
+#, c-format
+msgid "Fatal error: Cairo Renderer: Could not spawn child process!"
+msgstr ""
+
+#: ../resources/main.glade:50
+msgid "GDS-Render"
+msgstr ""
+
+#: ../gds-render-gui.c:294
+msgid "GDSII-Files"
+msgstr ""
+
+#: ../resources/dialog.glade:18
+msgid "Generate LaTeX/TikZ output"
+msgstr ""
+
+#: ../resources/dialog.glade:93
+msgid "Generate PDF Layers"
+msgstr ""
+
+#: ../output-renderers/latex-renderer.c:253
+#, c-format
+msgid "Generating cell %s"
+msgstr ""
+
+#: ../resources/about.glade:12
+msgid "Git Repository"
+msgstr ""
+
+#: ../widgets/conv-settings-dialog.c:246
+#, c-format
+msgid "Height: %.3lf %sm"
+msgstr ""
+
+#: ../main.c:321
+#, c-format
+msgid "Ignored argument: %s"
+msgstr ""
+
+#: ../output-renderers/external-renderer.c:106
+#, c-format
+msgid ""
+"Init function not found in library:\n"
+"%s\n"
+msgstr ""
+
+#: ../output-renderers/cairo-renderer.c:321
+#, c-format
+msgid "Layer number too high / outside of spec.\n"
+msgstr ""
+
+#: ../output-renderers/cairo-renderer.c:369
+#, c-format
+msgid "Layer outside of spec.\n"
+msgstr ""
+
+#: ../widgets/layer-element.c:102
+#, c-format
+msgid "Layer: %d"
+msgstr ""
+
+#: ../gds-render-gui.c:241
+msgid "Library"
+msgstr ""
+
+#: ../resources/main.glade:68
+msgid "Load Mapping"
+msgstr ""
+
+#: ../resources/main.glade:73
+msgid "Load the current layer configuration from CSV"
+msgstr ""
+
+#: ../main.c:116
+#, c-format
+msgid "Logo could not be displayed: %s\n"
+msgstr ""
+
+#: ../output-renderers/gds-output-renderer.c:293
+msgid "No layer specification supplied."
+msgstr ""
+
+#: ../command-line.c:186
+#, c-format
+msgid "No library in library list. This should not happen.\n"
+msgstr ""
+
+#: ../output-renderers/gds-output-renderer.c:288
+msgid "No/invalid output file set."
+msgstr ""
+
+#: ../widgets/conv-settings-dialog.c:291
+msgid "OK"
+msgstr ""
+
+#: ../resources/main.glade:58
+msgid "Open GDS2 Database"
+msgstr ""
+
+#: ../gds-render-gui.c:287
+msgid "Open GDSII"
+msgstr ""
+
+#: ../gds-render-gui.c:284
+msgid "Open GDSII File"
+msgstr ""
+
+#: ../main.c:299
+#, c-format
+msgid "Option parsing failed: %s\n"
+msgstr ""
+
+#: ../widgets/conv-settings-dialog.c:255
+#, c-format
+msgid "Output Height: %u px"
+msgstr ""
+
+#: ../output-renderers/gds-output-renderer.c:283
+msgid "Output Renderer not valid."
+msgstr ""
+
+#: ../output-renderers/gds-output-renderer.c:304
+msgid "Output Renderer: Rendering function broken. This is a bug."
+msgstr ""
+
+#. Set the pixel sizes
+#: ../widgets/conv-settings-dialog.c:252
+#, c-format
+msgid "Output Width: %u px"
+msgstr ""
+
+#: ../main.c:282
+msgid "Output file path. Can be used multiple times."
+msgstr ""
+
+#: ../output-renderers/gds-output-renderer.c:298
+msgid "Output renderer called without cell to render."
+msgstr ""
+
+#: ../output-renderers/gds-output-renderer.c:74
+msgid "Output renderer does not define a render_output function!"
+msgstr ""
+
+#: ../main.c:283
+msgid "Path for Layer Mapping File"
+msgstr ""
+
+#: ../main.c:288
+msgid ""
+"Path to a custom shared object, that implements the necessary rendering "
+"functions"
+msgstr ""
+
+#: ../output-renderers/external-renderer.c:78
+#, c-format
+msgid "Path to shared object not set!\n"
+msgstr ""
+
+#: ../command-line.c:74
+#, c-format
+msgid "Please specify renderers and file names\n"
+msgstr ""
+
+#: ../command-line.c:104
+#, c-format
+msgid ""
+"Please specify shared object for external renderer. Will ignore this "
+"renderer.\n"
+msgstr ""
+
+#: ../main.c:277
+msgid "Print version"
+msgstr ""
+
+#: ../command-line.c:160
+#, c-format
+msgid "Probably missing argument. Check --help option\n"
+msgstr ""
+
+#: ../main.c:219
+msgid "Quit"
+msgstr ""
+
+#: ../widgets/activity-bar.c:104
+msgid "Ready"
+msgstr ""
+
+#: ../resources/dialog.glade:33
+msgid "Render PDF using Cairographics"
+msgstr ""
+
+#: ../resources/dialog.glade:48
+msgid "Render SVG using Cairographics (too buggy at the moment)"
+msgstr ""
+
+#: ../widgets/conv-settings-dialog.c:293
+msgid "Renderer Settings"
+msgstr ""
+
+#: ../output-renderers/gds-output-renderer.c:365
+msgid "Renderer already started asynchronously"
+msgstr ""
+
+#: ../main.c:279
+msgid "Renderer to use. Can be used multiple times."
+msgstr ""
+
+#: ../output-renderers/cairo-renderer.c:467
+msgid "Rendering Cairo Output..."
+msgstr ""
+
+#: ../gds-render-gui.c:554
+msgid "Rendering cell..."
+msgstr ""
+
+#: ../output-renderers/external-renderer.c:98
+#, c-format
+msgid ""
+"Rendering function not found in library:\n"
+"%s\n"
+msgstr ""
+
+#: ../resources/main.glade:86
+msgid "Save Mapping"
+msgstr ""
+
+#: ../resources/main.glade:23
+msgid "Save the current layer configuration to CSV"
+msgstr ""
+
+#: ../main.c:312
+#, c-format
+msgid "Scale < 1 not allowed. Setting to 1\n"
+msgstr ""
+
+#: ../resources/layer-widget.glade:51
+msgid "Select Layer Color and Opacity"
+msgstr ""
+
+#: ../resources/main.glade:240
+msgid "Select all layers for export"
+msgstr ""
+
+#: ../output-renderers/cairo-renderer.c:331
+#, c-format
+msgid "Size of layer %d%s%s%s: <%lf x %lf> @ (%lf | %lf)\n"
+msgstr ""
+
+#: ../resources/main.glade:195
+msgid "Sort layers ascending"
+msgstr ""
+
+#: ../resources/main.glade:210
+msgid "Sort layers descending"
+msgstr ""
+
+#: ../main.c:212
+#, c-format
+msgid ""
+"There is already an open instance. Will open second window in that "
+"instance.\n"
+msgstr ""
+
+#: ../main.c:244
+#, c-format
+msgid ""
+"This is gds-render, version: %s\n"
+"\n"
+"For a list of supported commands execute with --help option.\n"
+msgstr ""
+
+#: ../gds-utils/gds-tree-checker.c:188
+#, c-format
+msgid "Visited cell list should be empty. This is a bug. Please report this.\n"
+msgstr ""
+
+#: ../widgets/conv-settings-dialog.c:244
+#, c-format
+msgid "Width: %.3lf %sm"
+msgstr ""
+
+#: ../widgets/activity-bar.c:110
+msgid "Working..."
+msgstr ""
+
+#: ../main.c:96
+msgid ""
+"gds-render is a free tool for rendering GDS2 layout files into vector "
+"graphics."
+msgstr ""
+
+#: ../resources/layer-widget.glade:37
+msgid "label"
+msgstr ""

translations/pot/po/de/gds-render.po

@@ -0,0 +1,487 @@
+# German translations for gds-render package.
+# Copyright (C) 2019 THE gds-render'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the gds-render package.
+# マリオ <mario.huettel@gmx.net>, 2019.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: gds-render\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-12-16 18:27+0100\n"
+"PO-Revision-Date: 2019-12-16 22:00+0100\n"
+"Last-Translator: Mario Hüttel <mario.huettel@gmx.net>\n"
+"Language-Team: German <translation-team-de@lists.sourceforge.net>\n"
+"Language: de\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Generator: Poedit 2.2.4\n"
+
+#: ../main.c:97
+#, c-format
+msgid ""
+"\n"
+"\n"
+"Full git commit: %s"
+msgstr ""
+"\n"
+"\n"
+"Vollständiger git-Commit: %s"
+
+#: ../main.c:294
+msgid " FILE - Convert GDS file <FILE> to graphic"
+msgstr " DATEI - Konvertiere GDS-Datei <DATEI> in Grafik"
+
+#: ../resources/about.glade:10
+msgid "!! Replaced during runtime !!"
+msgstr "!! Ersetzt zur Laufzeit !!"
+
+#: ../command-line.c:205
+#, c-format
+msgid "%d reference loops found.\n"
+msgstr "%d Referenzschleifen gefunden.\n"
+
+#: ../main.c:220
+msgid "About"
+msgstr "Info"
+
+#: ../main.c:290
+msgid "Argument string passed to render lib"
+msgstr "An Render-Bibliothek übergebener Argument-String"
+
+#: ../resources/main.glade:225
+msgid "Automatically color layers"
+msgstr "Färbe Layer automatisch"
+
+#: ../resources/main.glade:255
+msgid "Automatically name layers"
+msgstr "Bename Layer automatisch"
+
+#: ../gds-utils/gds-tree-checker.c:71
+#, c-format
+msgid "Broken cell list item found in cell %s. Will continue.\n"
+msgstr "Defektes Listenelement in Zelle %s. Ignoriere.\n"
+
+#: ../gds-utils/gds-tree-checker.c:57
+#, c-format
+msgid "Broken cell list item found. Will continue.\n"
+msgstr "Defektes Zellenelement in Liste gefunden. Ignoriere.\n"
+
+#: ../output-renderers/cairo-renderer.c:409
+#, c-format
+msgid "Cairo export finished. It might still be buggy!\n"
+msgstr "Cairo-Export abgeschlossen. Möglicherweise fehlerhaft!\n"
+
+#. Execute
+#: ../output-renderers/external-renderer.c:120
+msgid "Calling external renderer."
+msgstr "Rufe externen Renderer auf."
+
+#: ../gds-render-gui.c:286 ../widgets/conv-settings-dialog.c:291
+msgid "Cancel"
+msgstr "Abbruch"
+
+#: ../gds-render-gui.c:244
+msgid "Cell"
+msgstr "Zelle"
+
+#: ../command-line.c:209
+#, c-format
+msgid "Cell is affected by reference loop. Abort!\n"
+msgstr "Zelle ist von referenzschleife betroffen. Abbruch!\n"
+
+#: ../main.c:284
+msgid "Cell to render"
+msgstr "Zu rendernde Zelle"
+
+#: ../command-line.c:215
+#, c-format
+msgid ""
+"Cell was not checked. This should not happen. Please report this issue. Will "
+"continue either way.\n"
+msgstr ""
+"Zelle wurde nicht überprüft. Das sollte nicht passieren. Bitte melden Sie "
+"dieses Problem. Es wird dennoch fortgefahren.\n"
+
+#: ../command-line.c:202
+#, c-format
+msgid "Checking library %s failed.\n"
+msgstr "Überprüfung von Bibliothek %s fehlgeschlagen.\n"
+
+#: ../resources/dialog.glade:79
+msgid "Configure LaTeX as standalone document"
+msgstr "Konfiguriere LaTeX als eigenständiges Dokument"
+
+#: ../resources/main.glade:109
+msgid "Convert selected cell"
+msgstr "Konvertiere ausgewählte Zelle"
+
+#: ../output-renderers/external-renderer.c:89
+#, c-format
+msgid ""
+"Could not load external library '%s'\n"
+"Detailed error is:\n"
+"%s\n"
+msgstr ""
+"Externe Bibliothek '%s' konnte nicht geladen werden.\n"
+"Detailierter Fehler:\n"
+"%s\n"
+
+#: ../output-renderers/latex-renderer.c:373
+msgid "Could not open LaTeX output file"
+msgstr "LaTeX-Ausgabedatei konnte nicht geöffnet werden"
+
+#: ../command-line.c:195
+#, c-format
+msgid "Couldn't find cell in first library!\n"
+msgstr "Zelle nicht in erster Bibliothek gefunden!\n"
+
+#: ../command-line.c:81
+#, c-format
+msgid "Count of renderers %d does not match count of output file names %d\n"
+msgstr ""
+"Anzahl der Renderer %d stimmt nicht mit der Anzahl der angegebenen "
+"Ausgabedateinamen %d überein\n"
+
+#: ../main.c:286
+msgid "Create PDF Layers (OCG)"
+msgstr "Generiere PDF-Layer (OCG)"
+
+#: ../main.c:285
+msgid "Create standalone TeX"
+msgstr "Generiere eingenständiges TeX"
+
+#: ../main.c:280
+msgid "Divide output coordinates by <SCALE>"
+msgstr "Dividiere Ausgabekoordinaten durch <SCALE>"
+
+#: ../resources/layer-widget.glade:62
+msgid "Export Layer"
+msgstr "Exportiere Layer"
+
+#: ../output-renderers/cairo-renderer.c:366
+#, c-format
+msgid "Exporting layer %d to file\n"
+msgstr "Exportiere Layer %d in Datei\n"
+
+#: ../output-renderers/external-renderer.c:142
+msgid "External renderer finished."
+msgstr "Externer Renderer beendet."
+
+#. This should not happen
+#: ../output-renderers/cairo-renderer.c:271
+#, c-format
+msgid "Fatal error: Cairo Renderer: Could not spawn child process!"
+msgstr ""
+"Fataler Fehler: Cairo Renderer: Sub-Prozess konnte nicht gestartet werden!"
+
+#: ../resources/main.glade:50
+msgid "GDS-Render"
+msgstr "GDS-Render"
+
+#: ../gds-render-gui.c:294
+msgid "GDSII-Files"
+msgstr "GDSII-Dateien"
+
+#: ../resources/dialog.glade:18
+msgid "Generate LaTeX/TikZ output"
+msgstr "Generiere LaTeX/TikZ Ausgabe"
+
+#: ../resources/dialog.glade:93
+msgid "Generate PDF Layers"
+msgstr "Generiere PDF Layers"
+
+#: ../output-renderers/latex-renderer.c:253
+#, c-format
+msgid "Generating cell %s"
+msgstr "Generiere Zelle %s"
+
+#: ../resources/about.glade:12
+msgid "Git Repository"
+msgstr "Git Repository"
+
+#: ../widgets/conv-settings-dialog.c:246
+#, c-format
+msgid "Height: %.3lf %sm"
+msgstr "Höhe: %.3lf %sm"
+
+#: ../main.c:321
+#, c-format
+msgid "Ignored argument: %s"
+msgstr "Ignoriertes Argument: %s"
+
+#: ../output-renderers/external-renderer.c:106
+#, c-format
+msgid ""
+"Init function not found in library:\n"
+"%s\n"
+msgstr ""
+"Init-Funktion nicht in Bibliothek gefunden:\n"
+"%s\n"
+
+#: ../output-renderers/cairo-renderer.c:321
+#, c-format
+msgid "Layer number too high / outside of spec.\n"
+msgstr "Layer-Nummer zu hoch / Außerhalb der Spezifikation.\n"
+
+#: ../output-renderers/cairo-renderer.c:369
+#, c-format
+msgid "Layer outside of spec.\n"
+msgstr "Layer außerhalb der Spezifikation\n"
+
+#: ../widgets/layer-element.c:102
+#, c-format
+msgid "Layer: %d"
+msgstr "Layer: %d"
+
+#: ../gds-render-gui.c:241
+msgid "Library"
+msgstr "Bibliothek"
+
+#: ../resources/main.glade:68
+msgid "Load Mapping"
+msgstr "Zuordnung laden"
+
+#: ../resources/main.glade:73
+msgid "Load the current layer configuration from CSV"
+msgstr "Lade die aktuelle Layer-Zuordnung aus einer CSV-Datei"
+
+#: ../main.c:116
+#, c-format
+msgid "Logo could not be displayed: %s\n"
+msgstr "Logo konnte nicht angezeigt werden: %s\n"
+
+#: ../output-renderers/gds-output-renderer.c:293
+msgid "No layer specification supplied."
+msgstr "Keine Layer-Spezifikation angegeben."
+
+#: ../command-line.c:186
+#, c-format
+msgid "No library in library list. This should not happen.\n"
+msgstr "Keine Bibliothek in Bibliotheksliste. Das sollte nicht passieren.\n"
+
+#: ../output-renderers/gds-output-renderer.c:288
+msgid "No/invalid output file set."
+msgstr "Keine oder invalide Ausgabedatei angegeben."
+
+#: ../widgets/conv-settings-dialog.c:291
+msgid "OK"
+msgstr "OK"
+
+#: ../resources/main.glade:58
+msgid "Open GDS2 Database"
+msgstr "Öffne GDS2 Datenbank"
+
+#: ../gds-render-gui.c:287
+msgid "Open GDSII"
+msgstr "Öffne GDSII"
+
+#: ../gds-render-gui.c:284
+msgid "Open GDSII File"
+msgstr "Öffne GDSII-Datei"
+
+#: ../main.c:299
+#, c-format
+msgid "Option parsing failed: %s\n"
+msgstr "Optionsverarbeitung fehlgeschlagen: %s\n"
+
+#: ../widgets/conv-settings-dialog.c:255
+#, c-format
+msgid "Output Height: %u px"
+msgstr "Ausgabehöhe: %u px"
+
+#: ../output-renderers/gds-output-renderer.c:283
+msgid "Output Renderer not valid."
+msgstr "Ausgaberenderer invalide."
+
+#: ../output-renderers/gds-output-renderer.c:304
+msgid "Output Renderer: Rendering function broken. This is a bug."
+msgstr ""
+"Ausgaberenderer: Render-Funktion defekt. Dies ist ein interner "
+"Programmfehler."
+
+#. Set the pixel sizes
+#: ../widgets/conv-settings-dialog.c:252
+#, c-format
+msgid "Output Width: %u px"
+msgstr "Ausgabebreite: %u px"
+
+#: ../main.c:282
+msgid "Output file path. Can be used multiple times."
+msgstr "Ausgabepfad. Kann mehrfach angegeben werden."
+
+#: ../output-renderers/gds-output-renderer.c:298
+msgid "Output renderer called without cell to render."
+msgstr "Ausgaberenderer ohne zu rendernde Zelle aufgerufen."
+
+#: ../output-renderers/gds-output-renderer.c:74
+msgid "Output renderer does not define a render_output function!"
+msgstr "Ausgaberenderer definiert keine render_output Funktion!"
+
+#: ../main.c:283
+msgid "Path for Layer Mapping File"
+msgstr "Pfad zur Lagenzuordnungsdatei"
+
+#: ../main.c:288
+msgid ""
+"Path to a custom shared object, that implements the necessary rendering "
+"functions"
+msgstr ""
+"Pfad zu einem benutzerdefiniertem Shared-Object, welches die notwendigen "
+"Funktionen implementiert"
+
+#: ../output-renderers/external-renderer.c:78
+#, c-format
+msgid "Path to shared object not set!\n"
+msgstr "Kein Pfad zu einem Shared-Object gesetzt!\n"
+
+#: ../command-line.c:74
+#, c-format
+msgid "Please specify renderers and file names\n"
+msgstr "Bitte Renderer und Dateinamen angeben.\n"
+
+#: ../command-line.c:104
+#, c-format
+msgid ""
+"Please specify shared object for external renderer. Will ignore this "
+"renderer.\n"
+msgstr ""
+"Bitte Shares-Object für externen Renderer angeben. Dieser Renderer wird "
+"ignoriert.\n"
+
+#: ../main.c:277
+msgid "Print version"
+msgstr "Zeige Versionsnummer"
+
+#: ../command-line.c:160
+#, c-format
+msgid "Probably missing argument. Check --help option\n"
+msgstr "Vermutlich ein fehlendes Argument. Bitte --help überprüfen\n"
+
+#: ../main.c:219
+msgid "Quit"
+msgstr "Beenden"
+
+#: ../widgets/activity-bar.c:104
+msgid "Ready"
+msgstr "Bereit"
+
+#: ../resources/dialog.glade:33
+msgid "Render PDF using Cairographics"
+msgstr "Rendere PDF mit Cairographics"
+
+#: ../resources/dialog.glade:48
+msgid "Render SVG using Cairographics (too buggy at the moment)"
+msgstr "Rendere SVG mit Cairographics (Experimentell)"
+
+#: ../widgets/conv-settings-dialog.c:293
+msgid "Renderer Settings"
+msgstr "Renderer Einstellungen"
+
+#: ../output-renderers/gds-output-renderer.c:365
+msgid "Renderer already started asynchronously"
+msgstr "Renderer wird bereits asynchron ausgeführt"
+
+#: ../main.c:279
+msgid "Renderer to use. Can be used multiple times."
+msgstr "Zu nutzender Renderer. Kann mehrfach angegeben werden."
+
+#: ../output-renderers/cairo-renderer.c:467
+msgid "Rendering Cairo Output..."
+msgstr "Rendere Cairo-Ausgabe..."
+
+#: ../gds-render-gui.c:554
+msgid "Rendering cell..."
+msgstr "Renderere Zelle..."
+
+#: ../output-renderers/external-renderer.c:98
+#, c-format
+msgid ""
+"Rendering function not found in library:\n"
+"%s\n"
+msgstr ""
+"Render Funktion nicht in Bibliothek gefunden:\n"
+"%s\n"
+
+#: ../resources/main.glade:86
+msgid "Save Mapping"
+msgstr "Zuordnung speichern"
+
+#: ../resources/main.glade:23
+msgid "Save the current layer configuration to CSV"
+msgstr "Die aktuelle Lagenkonfiguration als CSV-Datei speichern"
+
+#: ../main.c:312
+#, c-format
+msgid "Scale < 1 not allowed. Setting to 1\n"
+msgstr "Skaliereung < 1 nicht erlaubt. Setze auf 1\n"
+
+#: ../resources/layer-widget.glade:51
+msgid "Select Layer Color and Opacity"
+msgstr "Wähle Layer-Farbe und Transparenz"
+
+#: ../resources/main.glade:240
+msgid "Select all layers for export"
+msgstr "Wähle alle Layer zum Exporieren"
+
+#: ../output-renderers/cairo-renderer.c:331
+#, c-format
+msgid "Size of layer %d%s%s%s: <%lf x %lf> @ (%lf | %lf)\n"
+msgstr "Größe von Layer %d%s%s%s: <%lf x %lf> @ (%lf | %lf)\n"
+
+#: ../resources/main.glade:195
+msgid "Sort layers ascending"
+msgstr "Sortiere Layer aufsteigend"
+
+#: ../resources/main.glade:210
+msgid "Sort layers descending"
+msgstr "Sortiere Layer absteigend"
+
+#: ../main.c:212
+#, c-format
+msgid ""
+"There is already an open instance. Will open second window in that "
+"instance.\n"
+msgstr ""
+"Es ist bereits eine Instanz dieses Programms geöffnet. Es wird ein zweites "
+"Fenster in jener Instanz geöffnet.\n"
+
+#: ../main.c:244
+#, c-format
+msgid ""
+"This is gds-render, version: %s\n"
+"\n"
+"For a list of supported commands execute with --help option.\n"
+msgstr ""
+"Dies ist gds-render, Version: %s\n"
+"\n"
+"Für eine Liste der unterstützten Kommandos mit der Option --help ausführen.\n"
+
+#: ../gds-utils/gds-tree-checker.c:188
+#, c-format
+msgid "Visited cell list should be empty. This is a bug. Please report this.\n"
+msgstr ""
+"Liste markierter Zellen sollte leer sein. Dies ist ein Fehler. Bitte "
+"melden.\n"
+
+#: ../widgets/conv-settings-dialog.c:244
+#, c-format
+msgid "Width: %.3lf %sm"
+msgstr "Breite: %.3lf %sm"
+
+#: ../widgets/activity-bar.c:110
+msgid "Working..."
+msgstr "Arbeite..."
+
+#: ../main.c:96
+msgid ""
+"gds-render is a free tool for rendering GDS2 layout files into vector "
+"graphics."
+msgstr ""
+"gds-render ist ein freies Programm, um GDS2-Layouts in Vektorgrafiken zu "
+"konvertieren."
+
+#: ../resources/layer-widget.glade:37
+msgid "label"
+msgstr "label"

translations/pot/prepare_language.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+SOURCE="${BASH_SOURCE[0]}"
+while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
+  DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null && pwd )"
+  SOURCE="$(readlink "$SOURCE")"
+  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+done
+DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null && pwd )"
+cd "$DIR"
+
+if [ -z $1 ]; then
+	echo "Please specify language code to generate/update"
+	exit -1
+fi
+
+locale="$1"
+podir="./po/$locale"
+echo "Selected locale: $locale"
+mkdir -p "$podir"
+pots=`find . -name '*.pot'`
+for pot in $pots; do
+	po=`echo "$podir/${pot%.pot}.po" | sed -e "s/\/.\//\//g"`
+	echo -n "$po: "
+	
+	if [ -f "$po" ]; then
+		echo "update"
+		msgmerge --update "$po" "$pot"
+	else
+		echo "generate"
+		msginit --input="$pot" --locale="$locale" --output="$po"
+	fi
+	
+done

version/CMakeLists.txt

@@ -1,4 +1,25 @@
 project(libversion)
+
+if(NOT WIN32)
+  string(ASCII 27 Esc)
+  set(ColorReset "${Esc}[m")
+  set(ColorBold  "${Esc}[1m")
+  set(Red         "${Esc}[31m")
+  set(Green       "${Esc}[32m")
+  set(Yellow      "${Esc}[33m")
+  set(Blue        "${Esc}[34m")
+  set(Magenta     "${Esc}[35m")
+  set(Cyan        "${Esc}[36m")
+  set(White       "${Esc}[37m")
+  set(BoldRed     "${Esc}[1;31m")
+  set(BoldGreen   "${Esc}[1;32m")
+  set(BoldYellow  "${Esc}[1;33m")
+  set(BoldBlue    "${Esc}[1;34m")
+  set(BoldMagenta "${Esc}[1;35m")
+  set(BoldCyan    "${Esc}[1;36m")
+  set(BoldWhite   "${Esc}[1;37m")
+endif()
+
 add_library(version STATIC "version.c")
 execute_process(COMMAND bash ./generate-version-string.sh
 		WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}		
@@ -6,6 +27,10 @@ execute_process(COMMAND bash ./generate-version-string.sh
 execute_process(COMMAND bash ./generate-git-commit-string.sh
 	        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 		OUTPUT_VARIABLE GIT_COMMIT)
-message("Commit: ${GIT_COMMIT}")
-message("Version: ${GIT_VER}")
+message("${BoldGreen}Commit: ${GIT_COMMIT}")
+message("Version: ${GIT_VER}${ColorReset}")
+
+IF(GIT_VER MATCHES "-dirty")
+        message("${BoldRed}Build is dirty! Commit your changes before releasing this version!${ColorReset}")
+ENDIF(GIT_VER MATCHES "-dirty")
 target_compile_definitions(version PRIVATE PROJECT_GIT_VERSION=${GIT_VER} PROJECT_GIT_COMMIT=${GIT_COMMIT})

version/version.c

@@ -17,7 +17,6 @@
  * along with GDSII-Converter.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-
 /**
  * @defgroup version Version Number
  * See @ref git-version-num

widgets/activity-bar.c

@@ -37,6 +37,7 @@
  */
 
 #include <gds-render/widgets/activity-bar.h>
+#include <glib/gi18n.h>
 
 /** @brief Opaque ActivityBar object. Not viewable outside this source file. */
 struct _ActivityBar {
@@ -98,16 +99,15 @@ ActivityBar *activity_bar_new()
 	return bar;
 }
 
-/* TODO: Complete this once the task list is fully implemented */
 void activity_bar_set_ready(ActivityBar *bar)
 {
-	gtk_label_set_text(GTK_LABEL(bar->label), "Ready");
+	gtk_label_set_text(GTK_LABEL(bar->label), _("Ready"));
 	gtk_spinner_stop(GTK_SPINNER(bar->spinner));
 }
 
 void activity_bar_set_busy(ActivityBar *bar, const char *text)
 {
-	gtk_label_set_text(GTK_LABEL(bar->label), (text ? text : "Working..."));
+	gtk_label_set_text(GTK_LABEL(bar->label), (text ? text : _("Working...")));
 	gtk_spinner_start(GTK_SPINNER(bar->spinner));
 }
 

widgets/conv-settings-dialog.c

@@ -30,6 +30,7 @@
  */
 
 #include <gds-render/widgets/conv-settings-dialog.h>
+#include <glib/gi18n.h>
 
 struct  _RendererSettingsDialog {
 		GtkDialog parent;
@@ -102,9 +103,9 @@ static void renderer_settings_dialog_class_init(RendererSettingsDialogClass *kla
 	oclass->set_property = renderer_settings_dialog_set_property;
 	oclass->get_property = renderer_settings_dialog_get_property;
 
-	properties[PROP_CELL_NAME] = g_param_spec_string("cell-name",
-							 "cell-name",
-							 "Cell name to be displayed in header bar",
+	properties[PROP_CELL_NAME] = g_param_spec_string(N_("cell-name"),
+							 N_("cell-name"),
+							 N_("Cell name to be displayed in header bar"),
 							 "",
 							 G_PARAM_READWRITE);
 	g_object_class_install_properties(oclass, PROP_COUNT, properties);
@@ -170,8 +171,11 @@ static gboolean shape_drawer_drawing_callback(GtkWidget *widget, cairo_t *cr, gp
 
 	final_scale_value = (width_scale < height_scale ? width_scale : height_scale);
 
-	cairo_rectangle(cr, -(double)dialog->cell_width*final_scale_value/2.0, -(double)dialog->cell_height*final_scale_value/2.0,
-			(double)dialog->cell_width*final_scale_value, (double)dialog->cell_height*final_scale_value);
+	cairo_rectangle(cr,
+			-(double)dialog->cell_width * final_scale_value / 2.0,
+			-(double)dialog->cell_height * final_scale_value / 2.0,
+			(double)dialog->cell_width * final_scale_value,
+			(double)dialog->cell_height * final_scale_value);
 	cairo_stroke(cr);
 	cairo_restore(cr);
 
@@ -183,9 +187,9 @@ static double convert_number_to_engineering(double input, const char **out_prefi
 	const char *selected_prefix = NULL;
 	double return_val = 0.0;
 	int idx;
-	static const char * prefixes[] = {"y", "z", "a", "f", "p", "n", "u", "m", "c", "d", /* < 1 */
-				 "", /* 1 */
-				 "h", "k", "M", "G", "T", "P", "E", "Z", "Y"}; /* > 1 */
+	static const char * const prefixes[] = {"y", "z", "a", "f", "p", "n", "u", "m", "c", "d", /* < 1 */
+						"", /* 1 */
+						"h", "k", "M", "G", "T", "P", "E", "Z", "Y"}; /* > 1 */
 	static const double scale[] = {1E-24, 1E-21, 1E-18, 1E-15, 1E-12, 1E-9, 1E-6, 1E-3, 1E-2, 1E-1,
 					1,
 					1E2, 1E3, 1E6, 1E9, 1E12, 1E15, 1E18, 1E21, 1E24};
@@ -193,7 +197,7 @@ static double convert_number_to_engineering(double input, const char **out_prefi
 
 	/* If pointer is invalid, return NaN */
 	if (!out_prefix)
-		return 0.0 / 0.0;
+		return (0.0 / 0.0);
 
 	/* Start with the 2nd smallest prefix */
 	for (idx = 1; idx < prefix_count; idx++) {
@@ -237,18 +241,18 @@ static void renderer_settings_dialog_update_labels(RendererSettingsDialog *self)
 	width_engineering = convert_number_to_engineering(width_meters, &width_prefix);
 	height_engineering = convert_number_to_engineering(height_meters, &height_prefix);
 
-	snprintf(default_buff, sizeof(default_buff), "Width: %.3lf %sm", width_engineering, width_prefix);
+	snprintf(default_buff, sizeof(default_buff), _("Width: %.3lf %sm"), width_engineering, width_prefix);
 	gtk_label_set_text(self->x_label, default_buff);
-	snprintf(default_buff, sizeof(default_buff), "Height: %.3lf %sm", height_engineering, height_prefix);
+	snprintf(default_buff, sizeof(default_buff), _("Height: %.3lf %sm"), height_engineering, height_prefix);
 	gtk_label_set_text(self->y_label, default_buff);
 
 	scale = gtk_range_get_value(GTK_RANGE(self->scale));
 
 	/* Set the pixel sizes */
-	snprintf(default_buff, sizeof(default_buff), "Output Width: %u px",
+	snprintf(default_buff, sizeof(default_buff), _("Output Width: %u px"),
 		 (unsigned int)((double)self->cell_width / scale));
 	gtk_label_set_text(self->x_output_label, default_buff);
-	snprintf(default_buff, sizeof(default_buff), "Output Height: %u px",
+	snprintf(default_buff, sizeof(default_buff), _("Output Height: %u px"),
 		 (unsigned int)((double)self->cell_height / scale));
 	gtk_label_set_text(self->y_output_label, default_buff);
 }
@@ -284,9 +288,9 @@ static void renderer_settings_dialog_init(RendererSettingsDialog *self)
 	self->x_output_label = GTK_LABEL(gtk_builder_get_object(builder, "x-output-label"));
 	self->y_output_label = GTK_LABEL(gtk_builder_get_object(builder, "y-output-label"));
 
-	gtk_dialog_add_buttons(dialog, "Cancel", GTK_RESPONSE_CANCEL, "OK", GTK_RESPONSE_OK, NULL);
+	gtk_dialog_add_buttons(dialog, _("Cancel"), GTK_RESPONSE_CANCEL, _("OK"), GTK_RESPONSE_OK, NULL);
 	gtk_container_add(GTK_CONTAINER(gtk_dialog_get_content_area(dialog)), box);
-	gtk_window_set_title(GTK_WINDOW(self), "Renderer Settings");
+	gtk_window_set_title(GTK_WINDOW(self), _("Renderer Settings"));
 
 	g_signal_connect(self->radio_latex, "toggled", G_CALLBACK(latex_render_callback), (gpointer)self);
 	g_signal_connect(G_OBJECT(self->shape_drawing),
@@ -308,9 +312,9 @@ RendererSettingsDialog *renderer_settings_dialog_new(GtkWindow *parent)
 	RendererSettingsDialog *res;
 
 	res = RENDERER_SETTINGS_DIALOG(g_object_new(RENDERER_TYPE_SETTINGS_DIALOG, NULL));
-	if (res && parent) {
+	if (res && parent)
 		gtk_window_set_transient_for(GTK_WINDOW(res), parent);
-	}
+
 	return res;
 }
 
@@ -322,13 +326,12 @@ void renderer_settings_dialog_get_settings(RendererSettingsDialog *dialog, struc
 	settings->scale = gtk_range_get_value(GTK_RANGE(dialog->scale));
 
 	/* Get active radio button selection */
-	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->radio_latex)) == TRUE) {
+	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->radio_latex)) == TRUE)
 		settings->renderer = RENDERER_LATEX_TIKZ;
-	} else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->radio_cairo_pdf)) == TRUE) {
+	else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->radio_cairo_pdf)) == TRUE)
 		settings->renderer = RENDERER_CAIROGRAPHICS_PDF;
-	} else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->radio_cairo_svg)) == TRUE) {
+	else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->radio_cairo_svg)) == TRUE)
 		settings->renderer = RENDERER_CAIROGRAPHICS_SVG;
-	}
 
 	settings->tex_pdf_layers = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->layer_check));
 	settings->tex_standalone = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->standalone_check));

widgets/layer-element.c

@@ -37,6 +37,7 @@
  */
 
 #include <gds-render/widgets/layer-element.h>
+#include <glib/gi18n.h>
 
 G_DEFINE_TYPE(LayerElement, layer_element, GTK_TYPE_LIST_BOX_ROW)
 
@@ -54,6 +55,7 @@ static void layer_element_constructed(GObject *obj)
 static void layer_element_class_init(LayerElementClass *klass)
 {
 	GObjectClass *oclass = G_OBJECT_CLASS(klass);
+
 	oclass->dispose = layer_element_dispose;
 	oclass->constructed = layer_element_constructed;
 }
@@ -62,6 +64,7 @@ static void layer_element_init(LayerElement *self)
 {
 	GtkBuilder *builder;
 	GtkWidget *glade_box;
+
 	builder = gtk_builder_new_from_resource("/gui/layer-widget.glade");
 	glade_box = GTK_WIDGET(gtk_builder_get_object(builder, "box"));
 	gtk_container_add(GTK_CONTAINER(self), glade_box);
@@ -86,7 +89,7 @@ const char *layer_element_get_name(LayerElement *elem)
 	return gtk_entry_get_text(elem->priv.name);
 }
 
-void layer_element_set_name(LayerElement *elem, const char* name)
+void layer_element_set_name(LayerElement *elem, const char *name)
 {
 	gtk_entry_set_text(elem->priv.name, name);
 }
@@ -96,7 +99,7 @@ void layer_element_set_layer(LayerElement *elem, int layer)
 	GString *string;
 
 	string = g_string_new_len(NULL, 100);
-	g_string_printf(string, "Layer: %d", layer);
+	g_string_printf(string, _("Layer: %d"), layer);
 	gtk_label_set_text(elem->priv.layer, (const gchar *)string->str);
 	elem->priv.layer_num = layer;
 	g_string_free(string, TRUE);
@@ -139,8 +142,9 @@ void layer_element_set_dnd_callbacks(LayerElement *elem, struct layer_element_dn
 		return;
 
 	/* Setup drag and drop */
-	gtk_style_context_add_class (gtk_widget_get_style_context(GTK_WIDGET(elem)), "row");
-	gtk_drag_source_set(GTK_WIDGET(elem->priv.event_handle), GDK_BUTTON1_MASK, data->entries, data->entry_count, GDK_ACTION_MOVE);
+	gtk_style_context_add_class(gtk_widget_get_style_context(GTK_WIDGET(elem)), "row");
+	gtk_drag_source_set(GTK_WIDGET(elem->priv.event_handle), GDK_BUTTON1_MASK,
+			    data->entries, data->entry_count, GDK_ACTION_MOVE);
 	g_signal_connect(elem->priv.event_handle, "drag-begin", G_CALLBACK(data->drag_begin), NULL);
 	g_signal_connect(elem->priv.event_handle, "drag-data-get", G_CALLBACK(data->drag_data_get), NULL);
 	g_signal_connect(elem->priv.event_handle, "drag-end", G_CALLBACK(data->drag_end), NULL);