1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/* Part of XPCE --- The SWI-Prolog GUI toolkit
Author: Jan Wielemaker and Anjo Anjewierden
E-mail: jan@swi.psy.uva.nl
WWW: http://www.swi.psy.uva.nl/projects/xpce/
Copyright (c) 1997-2011, University of Amsterdam
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
:- module(draw_importpl,
[ realise_drawing/2 % +Device, +Term
]).
:- use_module(library(pce)).
:- require([ maplist/3
]).
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Support library to import drawings from PceDraw into applications. To
use this library, make a drawing in PceDraw, and export it as a Prolog
term, either by dragging the icon at the top-right corner of PceDraw
onto a PceEmacs window running in Prolog mode, or by selecting the `Copy
To ClipBoard' option from the popup on this image and pasting in any
text editor.
The term returned is what is needed as the second argument to
realise_drawing/2. The drawing is placed at the same coordinates as the
initial drawing. If realised the drawing is realised on a device object
(or figure object), the method ->reference may be used to place the
reference point of the device at the top-left corner of the bounding box
of the drawing.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
% realise_drawing(Device, Drawing)
%
% Recreates the drawing at the indicates device. Drawing is a term
% as created by the PceDraw package library('draw/exportpl.pl'). This
% file contains a definition of the format of the Drawing term.
realise_drawing(Device, drawing(Objects)) :-
!,
draw(Objects, Device).
realise_drawing(Device, Objects) :-
draw(Objects, Device).
draw([], _).
draw([display(Term, Point)|T], Device) :-
term_to_object(Term, Object),
send(Device, display, Object, Point),
draw(T, Device).
draw([display(Term)|T], Device) :-
term_to_object(Term, Object),
send(Device, display, Object),
draw(T, Device).
draw([connect(Term)|T], Device) :-
term_to_connection(Term, _Connection),
draw(T, Device).
draw([compound(Term, Contents, Point)|T], Device) :-
term_to_object(Term, SubDev),
realise_drawing(SubDev, Contents),
send(Device, display, SubDev, Point),
draw(T, Device).
term_to_object(Term+Attribute, Object) :-
!,
term_to_object(Term, Object),
Attribute =.. [Selector|PlArgs],
maplist(term_to_object, PlArgs, Args),
Goal =.. [send, Object, Selector | Args],
Goal.
term_to_object(Atomic, Atomic) :-
atomic(Atomic),
!.
term_to_object(new(Object, Term), Object) :-
!,
new(Object, Term).
term_to_object(Term, Object) :-
new(Object, Term).
term_to_connection(Term+Attribute, Connection) :-
!,
term_to_connection(Term, Connection),
Attribute =.. [Selector|PlArgs],
maplist(term_to_object, PlArgs, Args),
Goal =.. [send, Connection, Selector | Args],
Goal.
term_to_connection(Term, Connection) :-
Term =.. [Class, From, To, FH, TH],
make_link(FH, TH, Link),
NewTerm =.. [Class, From, To, Link],
new(Connection, NewTerm),
attach_handle(From, FH),
attach_handle(To, TH).
attach_handle(Graphical, handle(_, _, _, Name)) :-
get(Graphical, handle, Name, _),
!.
attach_handle(Graphical, Handle) :-
send(Graphical, handle, Handle).
:- dynamic
link_store/3.
link_store(link, link, @default).
make_link(FH, TH, Link) :-
handle_kind(FH, FName),
handle_kind(TH, TName),
( link_store(FName, TName, Link)
-> true
; new(Link, link(FName, TName)),
send(Link, lock_object, @on),
asserta(link_store(FName, TName, Link))
).
handle_kind(handle(_X, _Y, Kind, _Name), Kind).
|
