Add pointer to parent library to cells, implement first draft of cell size/shape preview

gds-parser/gds-parser.c

@@ -58,7 +58,7 @@
 #define GDS_WARN(fmt, ...) printf("[PARSE_WARNING] " fmt "\n", ##__VA_ARGS__) /**< @brief Print GDS warning */
 
 #if GDS_PRINT_DEBUG_INFOS
-	#define GDS_INF(fmt, ...) printf(fmt, ##__VA_ARGS__) /**< @brief standard printf. But cna be disabled in code */
+	#define GDS_INF(fmt, ...) printf(fmt, ##__VA_ARGS__) /**< @brief standard printf. But can be disabled in code */
 #else
 	#define GDS_INF(fmt, ...)
 #endif
@@ -303,6 +303,7 @@ static GList *append_cell(GList *curr_list, struct gds_cell **cell_ptr)
 		cell->child_cells = NULL;
 		cell->graphic_objs = NULL;
 		cell->name[0] = 0;
+		cell->parent_library = NULL;
 	} else
 		return NULL;
 	/* return cell */
@@ -614,12 +615,20 @@ int parse_gds_from_file(const char *filename, GList **library_list)
 			GDS_INF("Leaving Library\n");
 			break;
 		case BGNSTR:
+			if (current_lib == NULL) {
+				GDS_ERROR("Defining Cell outside of library!\n");
+				run = -4;
+				break;
+			}
 			current_lib->cells = append_cell(current_lib->cells, &current_cell);
 			if (current_lib->cells == NULL) {
 				GDS_ERROR("Allocating memory failed");
 				run = -3;
 				break;
 			}
+
+			current_cell->parent_library = current_lib;
+
 			GDS_INF("Entering Cell\n");
 			break;
 		case ENDSTR:
@@ -726,7 +735,7 @@ int parse_gds_from_file(const char *filename, GList **library_list)
 
 
 		/* No Data -> No Processing, go back to top */
-		if (!rec_data_length) continue;
+		if (!rec_data_length || run != 1) continue;
 
 		read = fread(workbuff, sizeof(char), rec_data_length, gds_file);
 

gds-parser/gds-types.h

@@ -104,6 +104,7 @@ struct gds_cell {
 	struct gds_time_field access_time;
 	GList *child_cells; /**< @brief List of #gds_cell_instance elements */
 	GList *graphic_objs; /**< @brief List of #gds_graphics */
+	struct gds_library *parent_library; /**< @brief Pointer to parent library */
 };
 
 /**

main-window.c

@@ -230,7 +230,8 @@ static void on_convert_clicked(gpointer button, gpointer user)
 	GtkFileFilter *filter;
 	gint res;
 	char *file_name;
-	union bounding_box *cell_box;
+	union bounding_box cell_box;
+	double height, width;
 
 	/* Get selected cell */
 	selection = gtk_tree_view_get_selection(data->tree_view);
@@ -246,10 +247,19 @@ static void on_convert_clicked(gpointer button, gpointer user)
 	layer_list = export_rendered_layer_info();
 
 	/* Calculate cell size in DB units */
+	bounding_box_prepare_empty(&cell_box);
+	calculate_cell_bounding_box(&cell_box, cell_to_render);
+
+	/* Calculate size in meters */
+	height = (cell_box.vectors.upper_right.y - cell_box.vectors.lower_left.y) * cell_to_render->parent_library->unit_in_meters;
+	width = (cell_box.vectors.upper_right.x - cell_box.vectors.lower_left.x) * cell_to_render->parent_library->unit_in_meters;
 
 	/* Show settings dialog */
 	settings = renderer_settings_dialog_new(GTK_WINDOW(data->main_window));
 	renderer_settings_dialog_set_settings(settings, &sett);
+	renderer_settings_dialog_set_cell_height(settings, height);
+	renderer_settings_dialog_set_cell_width(settings, width);
+
 	res = gtk_dialog_run(GTK_DIALOG(settings));
 	if (res == GTK_RESPONSE_OK) {
 		renderer_settings_dialog_get_settings(settings, &sett);

trigonometric/bounding-box.c

@@ -133,9 +133,32 @@ 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, conv_generic_to_vector_2d_t conv_func, 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)
 {
-	printf("Error! Function bounding_box_calculate_path_box not yet implemented!\n");
+	GList *vertex_iterator;
+	struct vector_2d pt;
+
+	printf("Warning! Function bounding_box_calculate_path_box not yet implemented correctly!\n");
+
+	if (!vertices || !box)
+		return;
+
+	for (vertex_iterator = vertices; vertex_iterator != NULL; vertex_iterator = g_list_next(vertex_iterator)) {
+
+		if (conv_func != NULL)
+			conv_func(vertex_iterator->data, &pt);
+		else
+			(void)vector_2d_copy(&pt, (struct vector_2d *)vertex_iterator->data);
+
+		/* These are approximations.
+		 * Used as long as miter point calculation is not fully implemented
+		 */
+		box->vectors.lower_left.x = MIN(box->vectors.lower_left.x, pt.x - thickness/2);
+		box->vectors.lower_left.y = MIN(box->vectors.lower_left.y, pt.y - thickness/2);
+		box->vectors.upper_right.x = MAX(box->vectors.upper_right.x, pt.x + thickness/2);
+		box->vectors.upper_right.y = MAX(box->vectors.upper_right.y, pt.y + thickness/2);
+	}
 }
 
 void bounding_box_update_point(union bounding_box *destination, conv_generic_to_vector_2d_t conv_func, void *pt)
@@ -157,9 +180,24 @@ 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);
 }
 
-void bounding_box_apply_transform(double scale, double rotation, union bounding_box *box)
+/**
+ * @brief bounding_box_apply_transform
+ * @param scale scaling factor
+ * @param rotation roation of bounding box around the origin in degrees (counterclockwise)
+ * @param box bounding box the operations should be applied to
+ */
+void bounding_box_apply_transform(double scale, double rotation_deg, bool flip_at_x, union bounding_box *box)
 {
+	int i;
 
+	/* 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);
+	}
 }
 
 /** @} */

trigonometric/bounding-box.h

@@ -32,6 +32,7 @@
 #define _BOUNDING_BOX_H_
 #include <glib.h>
 #include "vector-operations.h"
+#include <stdbool.h>
 
 union bounding_box {
 	/** Coordinate System is (y up | x right) */
@@ -48,7 +49,8 @@ void bounding_box_calculate_polygon(GList *vertices, conv_generic_to_vector_2d_t
 void bounding_box_update_box(union bounding_box *destination, union bounding_box *update);
 void bounding_box_prepare_empty(union bounding_box *box);
 void bounding_box_update_point(union bounding_box *destination, conv_generic_to_vector_2d_t conv_func, void *pt);
-void bounding_box_apply_transform(double scale, double rotation, union bounding_box *box);
+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);
 
 #endif /* _BOUNDING_BOX_H_ */
 

trigonometric/cell-trigonometrics.c

@@ -24,6 +24,7 @@
  */
 
 #include "cell-trigonometrics.h"
+#include <math.h>
 
 /**
  * @addtogroup trigonometric
@@ -61,7 +62,9 @@ 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.
 		 */
-		/* Okay.. You're right. It is not implemented at all. ;P */
+		bounding_box_calculate_path_box(gfx->vertices, gfx->width_absolute,
+							(conv_generic_to_vector_2d_t)&convert_gds_point_to_2d_vector,
+							&current_box);
 		break;
 	default:
 		/* Unknown graphics object. */
@@ -97,8 +100,17 @@ void calculate_cell_bounding_box(union bounding_box *box, struct gds_cell *cell)
 		/* Recursion Woohoo!!  This dies if your GDS is faulty and contains a reference loop */
 		calculate_cell_bounding_box(&temp_box, sub_cell->cell_ref);
 
-		/* TODO: Apply transformations! */
+		/* Apply transformations */
+		bounding_box_apply_transform(ABS(sub_cell->magnification), sub_cell->angle, sub_cell->flipped, &temp_box);
 
+		/* Move bounding box to origin */
+		temp_box.vectors.lower_left.x += sub_cell->origin.x;
+		temp_box.vectors.lower_left.x += sub_cell->origin.x;
+		temp_box.vectors.upper_right.y += sub_cell->origin.y;
+		temp_box.vectors.upper_right.y += sub_cell->origin.y;
+
+		/* update the parent's box */
+		bounding_box_update_box(box, &temp_box);
 	}
 }