GtLayout* gt_layout_new(GtDiagram *diagram, unsigned int width, GtStyle *style, GtError *err) { GtLayout *layout; GtTextWidthCalculator *twc; gt_assert(diagram && width > 0 && style && err); if (check_width(width, style, err) < 0) return NULL; twc = gt_text_width_calculator_cairo_new(NULL, style); layout = gt_layout_new_with_twc(diagram, width, style, twc, err); layout->own_twc = true; return layout; }
static int gt_sketch_page_runner(GT_UNUSED int argc, const char **argv, int parsed_args, void *tool_arguments, GtError *err) { SketchPageArguments *arguments = tool_arguments; int had_err = 0; GtFeatureIndex *features = NULL; GtRange qry_range, sequence_region_range; GtStyle *sty = NULL; GtStr *prog, *gt_style_file; GtDiagram *d = NULL; GtLayout *l = NULL; GtBioseq *bioseq = NULL; GtCanvas *canvas = NULL; const char *seqid = NULL, *outfile; unsigned long start, height, num_pages = 0; double offsetpos, usable_height; cairo_surface_t *surf = NULL; cairo_t *cr = NULL; GtTextWidthCalculator *twc; gt_error_check(err); features = gt_feature_index_memory_new(); if (cairo_version() < CAIRO_VERSION_ENCODE(1, 8, 6)) gt_warning("Your cairo library (version %s) is older than version 1.8.6! " "These versions contain a bug which may result in " "corrupted PDF output!", cairo_version_string()); /* get style */ sty = gt_style_new(err); if (gt_str_length(arguments->stylefile) == 0) { prog = gt_str_new(); gt_str_append_cstr_nt(prog, argv[0], gt_cstr_length_up_to_char(argv[0], ' ')); gt_style_file = gt_get_gtdata_path(gt_str_get(prog), err); gt_str_delete(prog); gt_str_append_cstr(gt_style_file, "/sketch/default.style"); } else { gt_style_file = gt_str_ref(arguments->stylefile); } had_err = gt_style_load_file(sty, gt_str_get(gt_style_file), err); outfile = argv[parsed_args]; if (!had_err) { /* get features */ had_err = gt_feature_index_add_gff3file(features, argv[parsed_args+1], err); if (!had_err && gt_str_length(arguments->seqid) == 0) { seqid = gt_feature_index_get_first_seqid(features); if (seqid == NULL) { gt_error_set(err, "GFF input file must contain a sequence region!"); had_err = -1; } } else if (!had_err && !gt_feature_index_has_seqid(features, gt_str_get(arguments->seqid))) { gt_error_set(err, "sequence region '%s' does not exist in GFF input file", gt_str_get(arguments->seqid)); had_err = -1; } else if (!had_err) seqid = gt_str_get(arguments->seqid); } /* set text */ if (gt_str_length(arguments->text) == 0) { gt_str_delete(arguments->text); arguments->text = gt_str_new_cstr(argv[parsed_args+1]); } if (!had_err) { /* set display range */ gt_feature_index_get_range_for_seqid(features, &sequence_region_range, seqid); qry_range.start = (arguments->range.start == GT_UNDEF_ULONG ? sequence_region_range.start : arguments->range.start); qry_range.end = (arguments->range.end == GT_UNDEF_ULONG ? sequence_region_range.end : arguments->range.end); /* set output format */ if (strcmp(gt_str_get(arguments->format), "pdf") == 0) { surf = cairo_pdf_surface_create(outfile, mm_to_pt(arguments->pwidth), mm_to_pt(arguments->pheight)); } else if (strcmp(gt_str_get(arguments->format), "ps") == 0) { surf = cairo_ps_surface_create(outfile, mm_to_pt(arguments->pwidth), mm_to_pt(arguments->pheight)); } gt_log_log("created page with %.2f:%.2f dimensions\n", mm_to_pt(arguments->pwidth), mm_to_pt(arguments->pheight)); offsetpos = TEXT_SPACER + arguments->theight + TEXT_SPACER; usable_height = mm_to_pt(arguments->pheight) - arguments->theight - arguments->theight - 4*TEXT_SPACER; if (gt_str_length(arguments->seqfile) > 0) { bioseq = gt_bioseq_new(gt_str_get(arguments->seqfile), err); } cr = cairo_create(surf); cairo_set_font_size(cr, 8); twc = gt_text_width_calculator_cairo_new(cr, sty); for (start = qry_range.start; start <= qry_range.end; start += arguments->width) { GtRange single_range; GtCustomTrack *ct = NULL; const char *seq; single_range.start = start; single_range.end = start + arguments->width; if (had_err) break; d = gt_diagram_new(features, seqid, &single_range, sty, err); if (!d) { had_err = -1; break; } if (bioseq) { seq = gt_bioseq_get_sequence(bioseq, 0); ct = gt_custom_track_gc_content_new(seq, gt_bioseq_get_sequence_length(bioseq, 0), 800, 70, 0.4, true); gt_diagram_add_custom_track(d, ct); } l = gt_layout_new_with_twc(d, mm_to_pt(arguments->width), sty, twc, err); had_err = gt_layout_get_height(l, &height, err); if (!had_err) { if (gt_double_smaller_double(usable_height - 10 - 2*TEXT_SPACER - arguments->theight, offsetpos + height)) { draw_header(cr, gt_str_get(arguments->text), argv[parsed_args+1], seqid, num_pages, mm_to_pt(arguments->pwidth), mm_to_pt(arguments->pheight), arguments->theight); cairo_show_page(cr); offsetpos = TEXT_SPACER + arguments->theight + TEXT_SPACER; num_pages++; } canvas = gt_canvas_cairo_context_new(sty, cr, offsetpos, mm_to_pt(arguments->pwidth), height, NULL, err); if (!canvas) had_err = -1; offsetpos += height; if (!had_err) had_err = gt_layout_sketch(l, canvas, err); } gt_canvas_delete(canvas); gt_layout_delete(l); gt_diagram_delete(d); if (ct) gt_custom_track_delete(ct); } draw_header(cr, gt_str_get(arguments->text), argv[parsed_args+1], seqid, num_pages, mm_to_pt(arguments->pwidth), mm_to_pt(arguments->pheight), arguments->theight); cairo_show_page(cr); num_pages++; gt_log_log("finished, should be %lu pages\n", num_pages); gt_text_width_calculator_delete(twc); cairo_destroy(cr); cairo_surface_flush(surf); cairo_surface_finish(surf); cairo_surface_destroy(surf); cairo_debug_reset_static_data(); if (bioseq) gt_bioseq_delete(bioseq); gt_style_delete(sty); gt_str_delete(gt_style_file); gt_feature_index_delete(features); } return had_err; }