def generate_output(data_fname, config_fname, out_fname, outformat,
colorscheme=None, scale=1.0, margins=['10%', '5%']):
"""
TODO
"""
tree = _buildtree(data_fname, config_fname, colorscheme)
# Temporary context for layout calculations (need an actual graphics
# context to be able to work with fonts & text extents). Note that
# 'None' is given for the output filename, so a failed run won't
# overwrite an already existing file with an empty one. The actual
# output file will be created later.
_ctx.initsurface(1, 1, outformat, None, scale)
width, height = tree.calclayout()
# Margins can be given as percentages of the total graph size,
# that's why we have to wait with the margin calculations until the
# layout is complete
padtop, padleft, padbottom, padright = calculate_margins(width, height,
margins)
width += padleft + padright
height += padtop + padbottom
# Center tree
tree.shiftnodes(padleft, padtop)
# Create output file
_ctx.initsurface(width, height, outformat, out_fname, scale)
_ctx.background(tree.background_color())
tree.draw()
_ctx.writesurface()
def generate_output_nodebox(data_fname, config_fname, colorscheme=None,
margins=['10%', '5%']):
tree = _buildtree(data_fname, config_fname, colorscheme)
width, height = tree.calclayout()
padtop, padleft, padbottom, padright = calculate_margins(width, height,
margins)
width += padleft + padright
height += padtop + padbottom
# Center tree
tree.shiftnodes(padleft, padtop)
_ctx.size(width, height)
_ctx.background(tree.background_color())
tree.draw()