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enable Graphviz node port selection, optionable (p.r. 456)

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This enables the headport and tailport attributes for all edges in
the Graphviz file. The default (off) value makes the arrows between
persons and/or family nodes attach their ends to the respective node
at any position. When this option is selected, the position facing
the node on the other side of the arrow is always chosen.
This commit is contained in:
Jonathan Biegert 2017-09-17 17:20:23 -07:00 committed by Paul Franklin
parent 8ebb4d35fa
commit f31caf1ea4
1 changed files with 14 additions and 0 deletions
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14
gramps/gen/plug/docgen/graphdoc.py
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@ -8,6 +8,7 @@
# Copyright (C) 2007 Brian G. Matherly # Copyright (C) 2007 Brian G. Matherly
# Copyright (C) 2009 Benny Malengier # Copyright (C) 2009 Benny Malengier
# Copyright (C) 2009 Gary Burton # Copyright (C) 2009 Gary Burton
# Copyright (C) 2017 Jonathan Biegert <azrdev@qrdn.de>
# #
# This program is free software; you can redistribute it and/or modify # This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by # it under the terms of the GNU General Public License as published by
@ -71,6 +72,11 @@ _RANKDIR = [ { 'name' : _("Vertical (↓)"), 'value' : "TB" },
{ 'name' : _("Horizontal (→)"), 'value' : "LR" }, { 'name' : _("Horizontal (→)"), 'value' : "LR" },
{ 'name' : _("Horizontal (←)"), 'value' : "RL" } ] { 'name' : _("Horizontal (←)"), 'value' : "RL" } ]
_NODE_PORTS = { "TB" : ("n", "s"),
"BT" : ("s", "n"),
"LR" : ("w", "e"),
"RL" : ("e", "w") }
_PAGEDIR = [ { 'name' : _("Bottom, left"), 'value' :"BL" }, _PAGEDIR = [ { 'name' : _("Bottom, left"), 'value' :"BL" },
{ 'name' : _("Bottom, right"), 'value' :"BR" }, { 'name' : _("Bottom, right"), 'value' :"BR" },
{ 'name' : _("Top, left"), 'value' :"TL" }, { 'name' : _("Top, left"), 'value' :"TL" },
@ -185,6 +191,10 @@ class GVOptions:
spline.set_help(_("How the lines between objects will be drawn.")) spline.set_help(_("How the lines between objects will be drawn."))
menu.add_option(category, "spline", spline) menu.add_option(category, "spline", spline)
node_ports = BooleanOption(_("Alternate line attachment"), False)
node_ports.set_help(_("Whether lines attach to nodes differently"))
menu.add_option(category, "node_ports", node_ports)
# the page direction option only makes sense when the # the page direction option only makes sense when the
# number of horizontal and/or vertical pages is > 1, # number of horizontal and/or vertical pages is > 1,
# so we need to remember these 3 controls for later # so we need to remember these 3 controls for later
@ -410,6 +420,7 @@ class GVDocBase(BaseDoc, GVDoc):
self.vpages = get_value('v_pages') self.vpages = get_value('v_pages')
self.usesubgraphs = get_value('usesubgraphs') self.usesubgraphs = get_value('usesubgraphs')
self.spline = get_value('spline') self.spline = get_value('spline')
self.node_ports = get_value('node_ports')
paper_size = paper_style.get_size() paper_size = paper_style.get_size()
@ -458,6 +469,9 @@ class GVDocBase(BaseDoc, GVDoc):
'\n' + '\n' +
' edge [len=0.5 style=solid fontsize=%d];\n' % self.fontsize ' edge [len=0.5 style=solid fontsize=%d];\n' % self.fontsize
) )
if self.node_ports:
self.write(' edge [headport=%s tailport=%s];\n'
% _NODE_PORTS[self.rankdir])
if self.fontfamily: if self.fontfamily:
self.write( ' node [style=filled fontname="%s" fontsize=%d];\n' self.write( ' node [style=filled fontname="%s" fontsize=%d];\n'
% ( self.fontfamily, self.fontsize ) ) % ( self.fontfamily, self.fontsize ) )