X_OFFSET = 75
Y_INITIAL = 25
RECTANGLE_HEIGHT = 30
palette = sns.color_palette(None, len(motifs))
context = draw_surface(fasta, len(motifs))
context.set_line_width(1)
context.save()
context.set_source_rgb(1, 1, 1)
context.paint()
context.restore()
y_offset = 0
for header, sequence in fasta.items():
gene = Gene(header, sequence)
gene_name = gene.get_gene_name()
gene_length = gene.get_gene_length()
introns, exons = gene.get_intron_exon_locations()
motif_locations = gene.find_motif_locations(motifs)
context.set_source_rgb(0, 0, 0)
context.move_to(20, Y_INITIAL + y_offset + 5)
context.show_text(gene_name)
draw_introns(introns, X_OFFSET, y_offset, Y_INITIAL)
draw_exons(exons, X_OFFSET, y_offset, Y_INITIAL, RECTANGLE_HEIGHT)
draw_motifs(palette, motif_locations, X_OFFSET, y_offset, Y_INITIAL)
y_offset += 100
draw_legend(palette, X_OFFSET, y_offset, list(motifs.keys()))
