Merge branch 'master' into python-renderer

* new target doxygen-pdf which build the latex output
* Add doxygen-pdf to documentation target
* Move documentaiton target definition to doxygen's CMakeLists.txt

AUR/PKGBUILD

@@ -1,7 +1,7 @@
 # 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${ColorReset}")
+else(CMAKE_BUILD_TYPE STREQUAL "Debug")
+	message("${BoldCyan}Global locale directory used. Make sure files in /usr/share/locale are available${ColorReset}")
+	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;
 		}
@@ -137,12 +140,13 @@ 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)
 {
 	int ret = -1;
+	int render_ret;
 	GList *libs = NULL;
 	int res;
 	GList *renderer_list = NULL;
@@ -154,17 +158,24 @@ 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;
 	}
 
 	/* Load layer_settings */
 	layer_sett = layer_settings_new();
-	layer_settings_load_from_csv(layer_sett, layer_file);
+	if (!layer_sett)
+		goto return_value;
+
+	ret = layer_settings_load_from_csv(layer_sett, layer_file);
+	if (ret) {
+		fprintf(stderr, _("Loading layer mapping file failed.\n"));
+		goto ret_destroy_layer_mapping;
+	}
 
 	/* 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 +191,7 @@ 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 +200,27 @@ 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.
@@ -218,7 +229,9 @@ int command_line_convert_gds(const char *gds_name,
 	/* Execute all rendererer instances */
 	for (list_iter = renderer_list; list_iter; list_iter = list_iter->next) {
 		current_renderer = GDS_RENDER_OUTPUT_RENDERER(list_iter->data);
-		gds_output_renderer_render_output(current_renderer, toplevel_cell, scale);
+		render_ret = gds_output_renderer_render_output(current_renderer, toplevel_cell, scale);
+		if (render_ret)
+			fprintf(stderr, "Rendering failed with error code: %d\n", render_ret);
 	}
 
 ret_destroy_library_list:
@@ -228,6 +241,7 @@ ret_clear_renderers:
 		g_object_unref(list_iter->data);
 ret_destroy_layer_mapping:
 	g_object_unref(layer_sett);
+return_value:
 	return ret;
 }
 

doxygen/CMakeLists.txt

@@ -1,10 +1,19 @@
 find_package(Doxygen)
 
 if (DOXYGEN_FOUND)
+	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/external-renderer.dox

@@ -9,7 +9,19 @@
  * 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
+ * @ref EXTERNAL_LIBRARY_FINALIZE_FUNCTION | int EXTERNAL_LIBRARY_FINALIZE_FUNCTION(void) | Called after rendering
+ *
  */

doxygen/plugins.dox

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

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>
@@ -261,17 +262,17 @@ int gds_render_gui_setup_cell_selector(GdsRenderGui *self)
 	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);
+	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);
+	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
@@ -312,17 +313,17 @@ static void on_load_gds(gpointer button, gpointer 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));

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/output-renderers/external-renderer-interfaces.h

@@ -0,0 +1,60 @@
+#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 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 Function name expected to be found in external library for finalizing.
+ *
+ * @code
+ * int EXTERNAL_LIBRARY_FINALIZE_FUNCTION(void);
+ * @endcode
+ */
+#define EXTERNAL_LIBRARY_FINALIZE_FUNCTION exported_finalize
+
+/**
+ * @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
+ */
+#define FUNC_DECL(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

@@ -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);
 
@@ -128,18 +128,17 @@ 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;
@@ -169,10 +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 */
@@ -180,7 +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;

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);
 	}
 
@@ -208,15 +210,15 @@ 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 +242,7 @@ 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 +263,41 @@ 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},
+		{"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>" },
+			_("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}
+			_("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);
 	}
 
@@ -299,7 +310,7 @@ 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;
 		}
 
@@ -308,11 +319,11 @@ int main(int argc, char **argv)
 
 		/* Print out additional arguments as ignored */
 		for (i = 2; i < argc; i++)
-			printf("Ignored argument: %s", argv[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);
@@ -331,8 +342,10 @@ 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/external-renderer.c

@@ -30,16 +30,22 @@
 
 #include <dlfcn.h>
 #include <stdio.h>
+#include <sys/wait.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 */
 };
 
@@ -52,15 +58,21 @@ 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;
+	int (*so_finalize_func)(void) = 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");
@@ -78,22 +90,68 @@ static int external_renderer_render_cell(struct gds_cell *toplevel_cell, GList *
 		return -2000;
 	}
 
-	/* Load symbol from library */
+	/* Load rendering symbol from library */
 	so_render_func = (int (*)(struct gds_cell *, GList *, const char *, double))
-				dlsym(so_handle, EXTERNAL_LIBRARY_FUNCTION);
+				dlsym(so_handle, xstr(EXTERNAL_LIBRARY_RENDER_FUNCTION));
 	error_msg = dlerror();
-	if (error_msg != NULL) {
+	if (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) {
+		fprintf(stderr, "Rendering function not found in library:\n%s\n", error_msg);
+		goto ret_close_so_handle;
 	}
 
+	/* Load the finalize function */
+	so_finalize_func = (int (*)(void))dlsym(so_handle, xstr(EXTERNAL_LIBRARY_FINALIZE_FUNCTION));
+	error_msg = dlerror();
+	if (error_msg) {
+		fprintf(stderr, "Finalize 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);
+
+	/* Finalize the external renderer */
+	ret |= so_finalize_func();
+
+	/* 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;
@@ -116,7 +174,8 @@ 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);
 
@@ -133,6 +192,9 @@ 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);
 		break;
@@ -151,6 +213,11 @@ 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;
@@ -159,7 +226,9 @@ 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);
@@ -194,12 +263,19 @@ static void external_renderer_class_init(ExternalRendererClass *klass)
 					    "Path to the shared object to search rendering function in.",
 					    NULL,
 					    G_PARAM_READWRITE);
+	external_renderer_properties[PROP_PARAM_STRING] =
+			g_param_spec_string("param-string",
+					    "Shared object renderer parameter string",
+					    "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);
 }
 
 static void external_renderer_init(ExternalRenderer *self)
 {
 	self->shared_object_path = NULL;
+	self->cli_param_string = NULL;
 }
 
 ExternalRenderer *external_renderer_new()
@@ -207,9 +283,10 @@ 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, "shared-object-path", so_path,
+				"param-string", param_string,NULL);
 }
 
 /** @} */

plugins/CMakeLists.txt

@@ -0,0 +1,4 @@
+add_subdirectory(plugin-example)
+add_subdirectory(python-renderer)
+
+add_custom_target(plugins DEPENDS pluginexample pythonrenderer)

plugins/plugin-example/CMakeLists.txt

@@ -0,0 +1,11 @@
+project(pluginexample)
+cmake_minimum_required(VERSION 2.8)
+find_package(PkgConfig REQUIRED)
+
+aux_source_directory(src SOURCES)
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
+link_libraries(version)
+
+add_library(${PROJECT_NAME} SHARED EXCLUDE_FROM_ALL ${SOURCES})
+add_dependencies(${PROJECT_NAME} version)

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

@@ -0,0 +1,53 @@
+/*
+ * 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 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 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;
+}
+
+int FUNC_DECL(EXTERNAL_LIBRARY_FINALIZE_FUNCTION)(void)
+{
+	return 0;
+}
+
+/** @} */

plugins/python-renderer/CMakeLists.txt

@@ -0,0 +1,16 @@
+project(pythonrenderer)
+cmake_minimum_required(VERSION 2.8.8)
+find_package(PythonLibs)
+
+aux_source_directory(src SOURCES)
+
+include_directories(${PYTHON_INCLUDE_DIRS} ${CMAKE_CURRENT_SOURCE_DIR}/include)
+link_libraries(${PYTHON_LIBRARIES} version)
+
+message("Python version found: ${PYTHONLIBS_VERSION_STRING}")
+message(${PYTHON_LIBRARIES})
+message(${PYTHON_INCLUDE_DIRS})
+
+add_library(${PROJECT_NAME} SHARED EXCLUDE_FROM_ALL ${SOURCES})
+add_dependencies(${PROJECT_NAME} version)
+

plugins/python-renderer/include/python-renderer/gds-render-module.h

@@ -0,0 +1,44 @@
+/*
+ * GDSII-Converter Python 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/>.
+ */
+
+/**
+ * @file gds-render-module.h
+ * @brief Header file for the gds-render python module implementation
+ * @author Mario Hüttel <mario.huettel@gmx.net>
+ */
+
+#ifndef __GDS_RENDER_MODULE_H__
+#define __GDS_RENDER_MODULE_H__
+
+/**
+ * @addtogroup python-renderer
+ * @{
+ */
+
+#include <Python.h>
+
+/**
+ * @brief Set up the gds_render python module
+ * @return New module reference
+ */
+PyObject *init_gds_render_module();
+
+/** @} */
+
+#endif /* __GDS_RENDER_MODULE_H__ */

plugins/python-renderer/src/gds-render-module.c

@@ -0,0 +1,56 @@
+/*
+ * GDSII-Converter Python 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/>.
+ */
+
+/**
+ * @file gds-render-module.c
+ * @brief Gds-render python module implementation
+ * @author Mario Hüttel <mario.huettel@gmx.net>
+ */
+
+#include <python-renderer/gds-render-module.h>
+
+static PyObject *test(PyObject *self, PyObject *args)
+{
+	long int i;
+
+	if(!PyArg_ParseTuple(args, "l:get_number", &i))
+		return NULL;
+
+	i *= 2;
+
+	return PyLong_FromLong(i);
+}
+
+static PyMethodDef gds_render_methods[] = {
+	{"get_number", test, METH_VARARGS, "Return the number of arguments received by the process."},
+	{NULL, NULL, 0, NULL}
+};
+
+static PyModuleDef gds_render_module = {
+	PyModuleDef_HEAD_INIT, "gds_render", NULL, -1, gds_render_methods,
+	NULL, NULL, NULL, NULL
+};
+
+PyObject *init_gds_render_module(void)
+{
+	PyObject *this_module;
+
+	this_module = PyModule_Create(&gds_render_module);
+	return this_module;
+}

plugins/python-renderer/src/plugin-main.c

@@ -0,0 +1,173 @@
+/*
+ * GDSII-Converter Python 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/>.
+ */
+
+/**
+ * @file python-renderer/plugin-main.c
+ * @author Mario Hüttel <mario.huettel@gmx.net>
+ */
+
+/**
+ * @defgroup python-plugin Python Plugin for External Renderer
+ * @ingroup plugins
+ * This is a plugin for calling an external python script as renderer
+ * @addtogroup python-plugin
+ * @{
+ */
+
+#include <stdio.h>
+#include <libgen.h>
+#include <glib.h>
+#include <unistd.h>
+#include <Python.h>
+
+#include <gds-render/gds-utils/gds-types.h>
+#include <gds-render/output-renderers/external-renderer-interfaces.h>
+
+#include <python-renderer/gds-render-module.h>
+
+/**
+ * @brief Global variable for loaded module. This is not very nice.
+ * @warning This has to be changed, if this api wants to be re-entrant.
+ */
+static PyObject *p_module = NULL;
+
+int FUNC_DECL(EXTERNAL_LIBRARY_RENDER_FUNCTION)(struct gds_cell *toplevel, GList *layer_info_list, const char *output_file_name, double scale)
+{
+	int ret = 0;
+	PyObject *p_render_func;
+	PyObject *p_return_value;
+
+	if (!toplevel)
+		return -1000;
+	if (!p_module)
+		return -2000;
+
+	printf("Rendering %s\n", toplevel->name);
+
+	p_render_func = PyObject_GetAttrString(p_module, "test_func");
+	if (!p_render_func && !PyCallable_Check(p_render_func)) {
+		if (PyErr_Occurred())
+			PyErr_Print();
+		else
+			fprintf(stderr, "Function not found in python module\n");
+
+		ret = -1;
+		goto return_value;
+	}
+
+	p_return_value = PyObject_CallObject(p_render_func, NULL);
+	if (p_return_value) {
+		printf("Result of call: %ld\n", PyLong_AsLong(p_return_value));
+		Py_DECREF(p_return_value);
+	}
+
+	Py_XDECREF(p_render_func);
+
+return_value:
+	return ret;
+}
+
+int FUNC_DECL(EXTERNAL_LIBRARY_INIT_FUNCTION)(const char *params, const char *version)
+{
+	int ret = 0;
+	PyObject *p_name;
+	PyObject *p_sys_path;
+	PyObject *p_mod_dir_string;
+	PyObject *gds_render_module;
+	char file_path[PATH_MAX];
+	char *file_path_for_dir;
+	char *file_path_for_base;
+	char *dir_name;
+	char *base_name;
+
+	if (!params || !version)
+		return -1000;
+
+	printf("Init with params: %s\ngds-render version: %s\n", params, version);
+
+	ret = PyImport_AppendInittab("gds_render", &init_gds_render_module);
+	if (ret) {
+		ret = -1;
+		fprintf(stderr, "Registration of gds_render python module failed\n");
+		goto return_value;
+	}
+
+	Py_Initialize();
+
+	if (!realpath(params, file_path)) {
+		ret = -2;
+		fprintf(stderr, "Invalid file name.\n");
+		goto return_value;
+	}
+
+	file_path_for_dir = strdup(file_path);
+	if (!file_path_for_dir) {
+		ret = -3;
+		goto return_value;
+	}
+
+	file_path_for_base = strdup(file_path);
+	if (!file_path_for_base) {
+		ret = -3;
+		free (file_path_for_dir);
+		goto return_value;
+	}
+
+	dir_name = dirname(file_path_for_dir);
+	base_name = basename(file_path_for_base);
+
+	printf("Dir name : %s\n BAse name: %s\n", dir_name, base_name);
+
+	p_sys_path = PySys_GetObject("path");
+	p_mod_dir_string = PyUnicode_FromString(dir_name);
+	PyList_Append(p_sys_path, p_mod_dir_string);
+	Py_DECREF(p_mod_dir_string);
+
+	p_name = PyUnicode_DecodeFSDefault(strtok(base_name, "."));
+	p_module = PyImport_Import(p_name);
+	Py_DECREF(p_name);
+
+	if (!p_module) {
+		PyErr_Print();
+		fprintf(stderr, "Failed to load %s\n", params);
+		ret = -1;
+		goto return_value;
+	}
+
+	free(file_path_for_dir);
+	free(file_path_for_base);
+
+return_value:
+	return ret;
+}
+
+int FUNC_DECL(EXTERNAL_LIBRARY_FINALIZE_FUNCTION)(void)
+{
+	int ret;
+
+	printf("Finalizing\n");
+
+	if (p_module)
+		Py_DECREF(p_module);
+
+	ret = Py_FinalizeEx();
+	return ret;
+}
+
+/** @} */

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 +1,19 @@
+#!/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"
+
+for file in $files; do
+	pot="pot/"$(echo "${file#*/}" | sed -e "s/\//_/g")
+	pot="${pot%.c}.pot"
+	xgettext --keyword=_ --language=C --add-comments --sort-output -o "$pot" "$file"
+done

translations/pot/command-line.pot

@@ -0,0 +1,72 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-11-15 20:32+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=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../command-line.c:203
+#, c-format
+msgid "%d reference loops found.\n"
+msgstr ""
+
+#: ../command-line.c:207
+#, c-format
+msgid "Cell is affected by reference loop. Abort!\n"
+msgstr ""
+
+#: ../command-line.c:213
+#, c-format
+msgid ""
+"Cell was not checked. This should not happen. Please report this issue. Will "
+"continue either way.\n"
+msgstr ""
+
+#: ../command-line.c:200
+#, c-format
+msgid "Checking library %s failed.\n"
+msgstr ""
+
+#: ../command-line.c:193
+#, 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 ""
+
+#: ../command-line.c:184
+#, c-format
+msgid "No library in library list. This should not happen.\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 ""
+
+#: ../command-line.c:158
+#, c-format
+msgid "Probably missing argument. Check --help option\n"
+msgstr ""

translations/pot/gds-render-gui.pot

@@ -0,0 +1,50 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-11-15 20:32+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=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../gds-render-gui.c:275
+msgid "Acc. Date"
+msgstr ""
+
+#: ../gds-render-gui.c:318
+msgid "Cancel"
+msgstr ""
+
+#: ../gds-render-gui.c:268
+msgid "Cell"
+msgstr ""
+
+#: ../gds-render-gui.c:326
+msgid "GDSII-Files"
+msgstr ""
+
+#: ../gds-render-gui.c:265
+msgid "Library"
+msgstr ""
+
+#: ../gds-render-gui.c:272
+msgid "Mod. Date"
+msgstr ""
+
+#: ../gds-render-gui.c:319
+msgid "Open GDSII"
+msgstr ""
+
+#: ../gds-render-gui.c:316
+msgid "Open GDSII File"
+msgstr ""

translations/pot/main.pot

@@ -0,0 +1,121 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-11-15 20:32+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=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../main.c:97
+#, c-format
+msgid ""
+"\n"
+"\n"
+"Full git commit: %s"
+msgstr ""
+
+#: ../main.c:293
+msgid " FILE - Convert GDS file <FILE> to graphic"
+msgstr ""
+
+#: ../main.c:221
+msgid "About"
+msgstr ""
+
+#: ../main.c:289
+msgid "Argument string passed to render lib"
+msgstr ""
+
+#: ../main.c:283
+msgid "Cell to render"
+msgstr ""
+
+#: ../main.c:285
+msgid "Create PDF Layers (OCG)"
+msgstr ""
+
+#: ../main.c:284
+msgid "Create standalone TeX"
+msgstr ""
+
+#: ../main.c:279
+msgid "Divide output coordinates by <SCALE>"
+msgstr ""
+
+#: ../main.c:320
+#, c-format
+msgid "Ignored argument: %s"
+msgstr ""
+
+#: ../main.c:116
+#, c-format
+msgid "Logo could not be displayed: %s\n"
+msgstr ""
+
+#: ../main.c:298
+#, c-format
+msgid "Option parsing failed: %s\n"
+msgstr ""
+
+#: ../main.c:281
+msgid "Output file path. Can be used multiple times."
+msgstr ""
+
+#: ../main.c:282
+msgid "Path for Layer Mapping File"
+msgstr ""
+
+#: ../main.c:287
+msgid ""
+"Path to a custom shared object, that implements the necessary rendering "
+"functions"
+msgstr ""
+
+#: ../main.c:276
+msgid "Print version"
+msgstr ""
+
+#: ../main.c:220
+msgid "Quit"
+msgstr ""
+
+#: ../main.c:278
+msgid "Renderer to use. Can be used multiple times."
+msgstr ""
+
+#: ../main.c:311
+#, c-format
+msgid "Scale < 1 not allowed. Setting to 1\n"
+msgstr ""
+
+#: ../main.c:213
+#, c-format
+msgid ""
+"There is already an open instance. Will open second window in that "
+"instance.\n"
+msgstr ""
+
+#: ../main.c:245
+#, c-format
+msgid ""
+"This is gds-render, version: %s\n"
+"\n"
+"For a list of supported commands execute with --help option.\n"
+msgstr ""
+
+#: ../main.c:96
+msgid ""
+"gds-render is a free tool for rendering GDS2 layout files into vector "
+"graphics."
+msgstr ""

translations/pot/po/de/.gitignore

@@ -0,0 +1 @@
+*.po~

translations/pot/po/de/command-line.po

@@ -0,0 +1,73 @@
+# 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 PACKAGE package.
+# Mario Hüttel <mario.huettel@gmx.net>, 2019.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-10-22 23:02+0200\n"
+"PO-Revision-Date: 2019-10-22 23:02+0200\n"
+"Last-Translator:  <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"
+
+#: ../command-line.c:203
+#, c-format
+msgid "%d reference loops found.\n"
+msgstr "%d Referenzschleifen gefunden.\n"
+
+#: ../command-line.c:207
+#, c-format
+msgid "Cell is affected by reference loop. Abort!\n"
+msgstr "Zelle von Referenzschleife betroffen. Abbruch!\n"
+
+#: ../command-line.c:213
+#, 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 Fehlverhalten. Es wird "
+"dennoch fortgefahren.\n"
+
+#: ../command-line.c:200
+#, c-format
+msgid "Checking library %s failed.\n"
+msgstr "Überprüfen der Bibliothek %s fehlgeschlagen.\n"
+
+#: ../command-line.c:193
+#, c-format
+msgid "Couldn't find cell in first library!\n"
+msgstr "Konnte Zelle nicht in der ersten Bibliothek finden!\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 entspricht nicht der Anzahl der angegebenen Ausgabepfade %s\n"
+
+#: ../command-line.c:184
+#, c-format
+msgid "No library in library list. This should not happen.\n"
+msgstr "Keine Bilbiothek in Bibliotheksliste vorhanden. Dies sollte nicht passieren.\n"
+
+#: ../command-line.c:74
+#, c-format
+msgid "Please specify renderers and file names\n"
+msgstr "Bitte geben Sie Renderer und Dateinamen an\n"
+
+#: ../command-line.c:104
+#, c-format
+msgid ""
+"Please specify shared object for external renderer. Will ignore this "
+"renderer.\n"
+msgstr "Bitte geben Sie ein 'shared object' für den externen Renderer an. Renderer wird ignoriert.\n"
+
+#: ../command-line.c:158
+#, c-format
+msgid "Probably missing argument. Check --help option\n"
+msgstr "Vermutlich fehlendes Argument. Siehe --help Option für Hilfe\n"

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

@@ -0,0 +1,50 @@
+# German translations for PACKAGE package.
+# Copyright (C) 2019 THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# Mario Hüttel <mario.huettel@gmx.net>, 2019.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: gds-render VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-11-15 20:32+0100\n"
+"PO-Revision-Date: 2019-10-18 23:10+0200\n"
+"Last-Translator:  <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"
+
+#: ../gds-render-gui.c:275
+msgid "Acc. Date"
+msgstr "Zugr. Datum"
+
+#: ../gds-render-gui.c:318
+msgid "Cancel"
+msgstr "Abbruch"
+
+#: ../gds-render-gui.c:268
+msgid "Cell"
+msgstr "Zelle"
+
+#: ../gds-render-gui.c:326
+msgid "GDSII-Files"
+msgstr "GDSII-Dateiem"
+
+#: ../gds-render-gui.c:265
+msgid "Library"
+msgstr "Bibliothek"
+
+#: ../gds-render-gui.c:272
+msgid "Mod. Date"
+msgstr "Mod. Datum"
+
+#: ../gds-render-gui.c:319
+msgid "Open GDSII"
+msgstr "GDSII öffnen"
+
+#: ../gds-render-gui.c:316
+msgid "Open GDSII File"
+msgstr "GDSII Datei öffnen"

translations/pot/po/de/main.po

@@ -0,0 +1,133 @@
+# German translations for gds-render package.
+# Copyright (C) 2019 THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the gds-render package.
+# Mario Hüttel <mario.huettel@gmx.net>, 2019.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: gds-render VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-11-15 20:32+0100\n"
+"PO-Revision-Date: 2019-10-18 20:49+0200\n"
+"Last-Translator:  <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"
+
+#: ../main.c:97
+#, c-format
+msgid ""
+"\n"
+"\n"
+"Full git commit: %s"
+msgstr ""
+"\n"
+"\n"
+"Vollständige git Commit-ID %s"
+
+#: ../main.c:293
+msgid " FILE - Convert GDS file <FILE> to graphic"
+msgstr "Datei -- Konvertiere GDS Datei <Datei> zu Vektorgrafik"
+
+#: ../main.c:221
+msgid "About"
+msgstr "Über"
+
+#: ../main.c:289
+msgid "Argument string passed to render lib"
+msgstr "Argumente, die an externe Render-Bibliothek weitergegeben werden sollen"
+
+#: ../main.c:283
+msgid "Cell to render"
+msgstr "Zu konvertierende Zelle"
+
+#: ../main.c:285
+msgid "Create PDF Layers (OCG)"
+msgstr "Generiere PDF Layer (OCG)"
+
+#: ../main.c:284
+msgid "Create standalone TeX"
+msgstr "Generiere alleinstehendes TeX"
+
+#: ../main.c:279
+msgid "Divide output coordinates by <SCALE>"
+msgstr "Skaliere Ausgabekoordinaten um Faktor <SCALE> herab"
+
+#: ../main.c:320
+#, c-format
+msgid "Ignored argument: %s"
+msgstr "Ignoriertes Argument: %s"
+
+#: ../main.c:116
+#, c-format
+msgid "Logo could not be displayed: %s\n"
+msgstr "Logo konnte nicht angezeigt werden: %s\n"
+
+#: ../main.c:298
+#, c-format
+msgid "Option parsing failed: %s\n"
+msgstr "Übergabeparameterkonvertierung fehlgeschlagen: %s\n"
+
+#: ../main.c:281
+msgid "Output file path. Can be used multiple times."
+msgstr "Ausgabedatei. Kann mehrfach angegeben werden."
+
+#: ../main.c:282
+msgid "Path for Layer Mapping File"
+msgstr "Pfad zur \"Layer Mapping\"-Datei"
+
+#: ../main.c:287
+msgid ""
+"Path to a custom shared object, that implements the necessary rendering "
+"functions"
+msgstr ""
+"Pfad zu einer Programmbibliothek, die die notwendigen Renderingfunktionen bereitstellt"
+
+#: ../main.c:276
+msgid "Print version"
+msgstr "Programmversion aufgeben"
+
+#: ../main.c:220
+msgid "Quit"
+msgstr "Beenden"
+
+#: ../main.c:278
+msgid "Renderer to use. Can be used multiple times."
+msgstr "Gewünschter Renderer. Kann mehrfach angegeben werden."
+
+#: ../main.c:311
+#, c-format
+msgid "Scale < 1 not allowed. Setting to 1\n"
+msgstr "Skalierung < 1 nicht erlaubt. Rückfallwert 1 benutzt.\n"
+
+#: ../main.c:213
+#, c-format
+msgid ""
+"There is already an open instance. Will open second window in that "
+"instance.\n"
+msgstr ""
+"Es is bereits eine Instanz dieses Programms geöffnet. Ein weiteres Fenster "
+"in dieser wird geöffnet.\n"
+
+#: ../main.c:245
+#, c-format
+msgid ""
+"This is gds-render, version: %s\n"
+"\n"
+"For a list of supported commands execute with --help option.\n"
+msgstr ""
+"gds-render, Version %s\n"
+"\n"
+"Um eine Liste der unterstützten Befehle zu erhalten, bitte mit der Option --"
+"help ausführen.\n"
+
+#: ../main.c:96
+msgid ""
+"gds-render is a free tool for rendering GDS2 layout files into vector "
+"graphics."
+msgstr ""
+"gds-render is ein freies Werkzeug zum Wandeln von GDS2 Layouts in "
+"Vektorgrafiken."

translations/pot/po/de/widgets_activity-bar.po

@@ -0,0 +1,26 @@
+# German translations for gds-render package.
+# Copyright (C) 2019 THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# Mario Hüttel <mario.huettel@gmx.net>, 2019.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-10-25 20:27+0200\n"
+"PO-Revision-Date: 2019-10-25 20:27+0200\n"
+"Last-Translator:  <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"
+
+#: ../widgets/activity-bar.c:105
+msgid "Ready"
+msgstr "Bereit"
+
+#: ../widgets/activity-bar.c:111
+msgid "Working..."
+msgstr "Berechnung aktiv..."

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

translations/pot/widgets_activity-bar.pot

@@ -0,0 +1,26 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-11-15 20:32+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=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../widgets/activity-bar.c:105
+msgid "Ready"
+msgstr ""
+
+#: ../widgets/activity-bar.c:111
+msgid "Working..."
+msgstr ""

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})

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 {
@@ -101,13 +102,13 @@ ActivityBar *activity_bar_new()
 /* 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));
 }