cairo output started

CMakeLists.txt

@@ -17,6 +17,7 @@ aux_source_directory("widgets" LAYER_SOURCES)
 aux_source_directory("tree-renderer" RENDERER_SOURCES)
 aux_source_directory("gds-parser" PARSER_SOURCES)
 aux_source_directory("latex-output" LATEX_SOURCES)
+aux_source_directory("cairo-output" CAIRO_SOURCES)
 set(SOURCE "main.c" "layer-selector.c")
 
 
@@ -26,6 +27,7 @@ set(SOURCE
   ${RENDERER_SOURCES}
   ${PARSER_SOURCES}
   ${LATEX_SOURCES}
+  ${CAIRO_SOURCES}
 )
 
 add_compile_options(-Wall)

cairo-output/cairo-output.c

@@ -0,0 +1,76 @@
+/*
+ * GDSII-Converter
+ * Copyright (C) 2018  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/>.
+ */
+
+#include "cairo-output.h"
+#include <math.h>
+#include <stdlib.h>
+#include <cairo.h>
+#include <cairo-pdf.h>
+
+struct cairo_layer {
+	cairo_t *cr;
+	cairo_surface_t *rec;
+	struct layer_info *linfo;
+};
+
+void cairo_render_cell_to_pdf(struct gds_cell *cell, GList *layer_infos, char *pdf_file, double scale)
+{
+	cairo_surface_t *surface;
+	cairo_t *cr;
+	struct layer_info *linfo;
+	struct cairo_layer *layers;
+	struct cairo_layer *lay;
+	GList *info_list;
+	int i;
+
+	layers = (struct cairo_layer *)calloc(MAX_LAYERS, sizeof(struct cairo_layer));
+
+	/* Clear layers */
+	for (i = 0; i < MAX_LAYERS; i++) {
+		layers[i].cr = NULL;
+		layers[i].rec = NULL;
+	}
+
+	/* Create recording surface for each layer */
+	for (info_list = layer_infos; info_list != NULL; info_list = g_list_next(info_list)) {
+		linfo = (struct layer_info *)info_list->data;
+		if (linfo->layer < MAX_LAYERS) {
+			lay = &(layers[(unsigned int)linfo->layer]);
+			lay->linfo = linfo;
+			lay->rec = cairo_recording_surface_create(CAIRO_CONTENT_COLOR_ALPHA,
+								  NULL);
+			lay->cr = cairo_create(layers[(unsigned int)linfo->layer].rec);
+			cairo_scale(lay->cr, 1/scale, 1/scale);
+		} else {
+			printf("Layer number (%d) too high!\n", linfo->layer);
+			goto ret_clear_layers;
+		}
+	}
+
+
+ret_clear_layers:
+	for (i = 0; i < MAX_LAYERS; i++) {
+		lay = &layers[i];
+		cairo_destroy(lay->cr);
+		cairo_surface_destroy(lay->rec);
+	}
+	free(layers);
+
+	printf("cairo export not yet implemented!\n");
+}

cairo-output/cairo-output.h

@@ -0,0 +1,30 @@
+/*
+ * GDSII-Converter
+ * Copyright (C) 2018  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/>.
+ */
+
+#ifndef __CAIRO_OUTPUT_H__
+#define __CAIRO_OUTPUT_H__
+
+#include "../layer-selector.h"
+#include "../gds-parser/gds-types.h"
+
+#define MAX_LAYERS (2048)
+
+void cairo_render_cell_to_pdf(struct gds_cell *cell, GList *layer_infos, char *pdf_file, double scale);
+
+#endif /* __CAIRO_OUTPUT_H__ */

latex-output/latex-output.c

@@ -81,7 +81,7 @@ static gboolean write_layer_env(FILE *tex_file, GdkRGBA *color, int layer, GList
 }
 
 
-static void generate_graphics(FILE *tex_file, GList *graphics, GList *linfo, GString *buffer)
+static void generate_graphics(FILE *tex_file, GList *graphics, GList *linfo, GString *buffer, double scale)
 {
 	GList *temp;
 	GList *temp_vertex;
@@ -102,7 +102,7 @@ static void generate_graphics(FILE *tex_file, GList *graphics, GList *linfo, GSt
 				/* Append vertices */
 				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)/1000.0, ((double)pt->y)/1000.0);
+					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");
@@ -120,7 +120,7 @@ static void generate_graphics(FILE *tex_file, GList *graphics, GList *linfo, GSt
 				}
 
 				g_string_printf(buffer, "\\draw[line width=%lf pt, draw={c%d}, opacity={%lf}, cap=%s] ",
-						gfx->width_absolute/1000.0, gfx->layer, color.alpha,
+						gfx->width_absolute/scale, gfx->layer, color.alpha,
 						line_caps[gfx->path_render_type]);
 				WRITEOUT_BUFFER(buffer);
 
@@ -128,8 +128,8 @@ static void generate_graphics(FILE *tex_file, GList *graphics, GList *linfo, GSt
 				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)/1000.0,
-							((double)pt->y)/1000.0,
+							((double)pt->x)/scale,
+							((double)pt->y)/scale,
 							(temp_vertex->next ? " -- " : ""));
 					WRITEOUT_BUFFER(buffer);
 				}
@@ -145,14 +145,14 @@ static void generate_graphics(FILE *tex_file, GList *graphics, GList *linfo, GSt
 }
 
 
-static void render_cell(struct gds_cell *cell, GList *layer_infos, FILE *tex_file, GString *buffer)
+static void render_cell(struct gds_cell *cell, GList *layer_infos, FILE *tex_file, GString *buffer, double scale)
 {
 
 	GList *list_child;
 	struct gds_cell_instance *inst;
 
 	/* Draw polygons of current cell */
-	generate_graphics(tex_file, cell->graphic_objs, layer_infos, buffer);
+	generate_graphics(tex_file, cell->graphic_objs, layer_infos, buffer, scale);
 
 	/* Draw polygons of childs */
 	for (list_child = cell->child_cells; list_child != NULL; list_child = list_child->next) {
@@ -164,7 +164,7 @@ 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)/1000.0,((double)inst->origin.y)/1000.0);
+				((double)inst->origin.x)/scale,((double)inst->origin.y)/scale);
 		WRITEOUT_BUFFER(buffer);
 
 		g_string_printf(buffer, "\\begin{scope}[rotate=%lf]\n", inst->angle);
@@ -174,7 +174,7 @@ static void render_cell(struct gds_cell *cell, GList *layer_infos, FILE *tex_fil
 					inst->magnification);
 		WRITEOUT_BUFFER(buffer);
 
-		render_cell(inst->cell_ref, layer_infos, tex_file, buffer);
+		render_cell(inst->cell_ref, layer_infos, tex_file, buffer, scale);
 
 		g_string_printf(buffer, "\\end{scope}\n");
 		WRITEOUT_BUFFER(buffer);
@@ -188,7 +188,7 @@ static void render_cell(struct gds_cell *cell, GList *layer_infos, FILE *tex_fil
 
 }
 
-void render_cell_to_code(struct gds_cell *cell, GList *layer_infos, FILE *tex_file)
+void latex_render_cell_to_code(struct gds_cell *cell, GList *layer_infos, FILE *tex_file, double scale)
 {
 	GString *working_line;
 
@@ -219,7 +219,7 @@ void render_cell_to_code(struct gds_cell *cell, GList *layer_infos, FILE *tex_fi
 	WRITEOUT_BUFFER(working_line);
 
 	/* Generate graphics output */
-	render_cell(cell, layer_infos, tex_file, working_line);
+	render_cell(cell, layer_infos, tex_file, working_line, scale);
 
 
 	g_string_printf(working_line, "\\end{tikzpicture}\n");

latex-output/latex-output.h

@@ -27,6 +27,6 @@
 
 #define LATEX_LINE_BUFFER_KB (10)
 
-void render_cell_to_code(struct gds_cell *cell, GList *layer_infos, FILE *tex_file);
+void latex_render_cell_to_code(struct gds_cell *cell, GList *layer_infos, FILE *tex_file, double scale);
 
 #endif /* __LATEX_OUTPUT_H__ */

main.c

@@ -24,6 +24,7 @@
 #include "tree-renderer/tree-store.h"
 #include "latex-output/latex-output.h"
 #include "widgets/conv-settings-dialog.h"
+#include "cairo-output/cairo-output.h"
 
 struct open_button_data {
 	GtkWindow *main_window;
@@ -161,22 +162,23 @@ end_destroy:
 
 static void on_convert_clicked(gpointer button, gpointer user)
 {
+	static struct render_settings sett = {
+		.scale = 1000.0f,
+				.renderer = RENDERER_LATEX_TIKZ,
+	};
 	struct convert_button_data *data = (struct convert_button_data *)user;
 	GtkTreeSelection *selection;
 	GtkTreeIter iter;
 	GtkTreeModel *model;
 	GList *layer_list;
 	struct gds_cell *cell_to_render;
-	FILE *tex_file;
+	FILE *output_file;
 	GtkWidget *dialog;
 	RendererSettingsDialog *settings;
+	GtkFileFilter *filter;
 	gint res;
 	char *file_name;
 
-	settings = renderer_settings_dialog_new(GTK_WINDOW(data->main_window));
-	gtk_dialog_run(GTK_DIALOG(settings));
-	gtk_widget_destroy(GTK_WIDGET(settings));
-
 	/* Get selected cell */
 	selection = gtk_tree_view_get_selection(data->tree_view);
 	if (gtk_tree_selection_get_selected(selection, &model, &iter) == FALSE)
@@ -190,21 +192,56 @@ static void on_convert_clicked(gpointer button, gpointer user)
 	/* Get layers that are rendered */
 	layer_list = export_rendered_layer_info();
 
+	settings = renderer_settings_dialog_new(GTK_WINDOW(data->main_window));
+	renderer_settings_dialog_set_settings(settings, &sett);
+	res = gtk_dialog_run(GTK_DIALOG(settings));
+	if (res == GTK_RESPONSE_OK) {
+		renderer_settings_dialog_get_settings(settings, &sett);
+		gtk_widget_destroy(GTK_WIDGET(settings));
+	} else {
+		gtk_widget_destroy(GTK_WIDGET(settings));
+		goto ret_layer_destroy;
+	}
+
+
+
 	/* save file dialog */
-	dialog = gtk_file_chooser_dialog_new("Save TeX File", GTK_WINDOW(data->main_window), GTK_FILE_CHOOSER_ACTION_SAVE,
+	dialog = gtk_file_chooser_dialog_new((sett.renderer == RENDERER_LATEX_TIKZ
+					      ? "Save LaTeX File" : "Save PDF"),
+					     GTK_WINDOW(data->main_window), GTK_FILE_CHOOSER_ACTION_SAVE,
 					     "Cancel", GTK_RESPONSE_CANCEL, "Save", GTK_RESPONSE_ACCEPT, NULL);
+	/* Set file filter according to settings */
+	filter = gtk_file_filter_new();
+	if (sett.renderer == RENDERER_LATEX_TIKZ) {
+		gtk_file_filter_add_pattern(filter, "*.tex");
+		gtk_file_filter_set_name(filter, "LaTeX-Files");
+	} else {
+		gtk_file_filter_add_pattern(filter, "*.pdf");
+		gtk_file_filter_set_name(filter, "PDF-Files");
+	}
+	gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter);
+
 	res = gtk_dialog_run(GTK_DIALOG(dialog));
 	if (res == GTK_RESPONSE_ACCEPT) {
 		file_name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
-		tex_file = fopen(file_name, "w");
-		g_free(file_name);
 		gtk_widget_destroy(dialog);
-		render_cell_to_code(cell_to_render, layer_list, tex_file);
-		fclose(tex_file);
+
+		switch (sett.renderer) {
+		case RENDERER_LATEX_TIKZ:
+			output_file = fopen(file_name, "w");
+			latex_render_cell_to_code(cell_to_render, layer_list, output_file, sett.scale);
+			fclose(output_file);
+			break;
+		case RENDERER_CAIROGRAPHICS:
+			cairo_render_cell_to_pdf(cell_to_render, layer_list, file_name, sett.scale);
+			break;
+		}
+		g_free(file_name);
+
 	} else {
 		gtk_widget_destroy(dialog);
 	}
-
+ret_layer_destroy:
 	g_list_free_full(layer_list, (GDestroyNotify)delete_layer_info_struct);
 }
 

widgets/conv-settings-dialog.c

@@ -22,7 +22,8 @@
 struct  _RendererSettingsDialog {
 	GtkDialog parent;
 	/* Private loot */
-	GtkWidget *radio_latex; // Only Latex-radio. Other one is implicit
+	GtkWidget *radio_latex;
+	GtkWidget *radio_cairo;
 	GtkWidget *scale;
 };
 
@@ -48,9 +49,12 @@ static void renderer_settings_dialog_init(RendererSettingsDialog *self)
 	builder = gtk_builder_new_from_resource("/dialog.glade");
 	box = GTK_WIDGET(gtk_builder_get_object(builder, "dialog-box"));
 	self->radio_latex = GTK_WIDGET(gtk_builder_get_object(builder, "latex-radio"));
+	self->radio_cairo = GTK_WIDGET(gtk_builder_get_object(builder, "cairo-radio"));
 	self->scale = GTK_WIDGET(gtk_builder_get_object(builder, "dialog-scale"));
 	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");
+
 	g_object_unref(builder);
 }
 
@@ -65,11 +69,25 @@ RendererSettingsDialog *renderer_settings_dialog_new(GtkWindow *parent)
 	return res;
 }
 
-void renderer_settings_dialog_set_settings(RendererSettingsDialog *dialog, struct render_settings *settings)
+void renderer_settings_dialog_get_settings(RendererSettingsDialog *dialog, struct render_settings *settings)
 {
-	if (!settings)
+	if (!settings || !dialog)
 		return;
 	settings->scale = gtk_range_get_value(GTK_RANGE(dialog->scale));
 	settings->renderer = (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(dialog->radio_latex)) == TRUE ? RENDERER_LATEX_TIKZ : RENDERER_CAIROGRAPHICS);
 }
-void renderer_settings_dialog_get_settings(RendererSettingsDialog *dialog, struct render_settings *settings);
+void renderer_settings_dialog_set_settings(RendererSettingsDialog *dialog, struct render_settings *settings)
+{
+	if (!settings || !dialog)
+		return;
+	gtk_range_set_value(GTK_RANGE(dialog->scale), settings->scale);
+
+	switch (settings->renderer) {
+	case RENDERER_LATEX_TIKZ:
+		gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(dialog->radio_latex), TRUE);
+		break;
+	case RENDERER_CAIROGRAPHICS:
+		gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(dialog->radio_cairo), TRUE);
+		break;
+	}
+}