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find.h
1 //
2 // find.h
3 //
4 // Copyright (C) 1996 Limit Point Systems, Inc.
5 //
6 // Author: Curtis Janssen <cljanss@limitpt.com>
7 // Maintainer: LPS
8 //
9 // This file is part of the SC Toolkit.
10 //
11 // The SC Toolkit is free software; you can redistribute it and/or modify
12 // it under the terms of the GNU Library General Public License as published by
13 // the Free Software Foundation; either version 2, or (at your option)
14 // any later version.
15 //
16 // The SC Toolkit is distributed in the hope that it will be useful,
17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 // GNU Library General Public License for more details.
20 //
21 // You should have received a copy of the GNU Library General Public License
22 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to
23 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 //
25 // The U.S. Government is granted a limited license as per AL 91-7.
26 //
27
28 #ifndef _util_render_find_h
29 #define _util_render_find_h
30
31 #include <util/render/stack.h>
32 #include <util/render/parameter.h>
33
34 namespace sc {
35
36 // cannot be used with g++ 2.6-94q4 and has other bugs anyway
37 #if 0
38 template <class T1, class T2>
39 void
40 find_parameter_in_stack(Stack<T1>& stack,
41 Parameter<T2>& (T1::*access)(),
42 T2& result
43 )
44 {
45 int have_result = 0;
46 for (int i=stack.n()-1; i>=0; i--) {
47 if ((stack[i]->*access)().is_set()) {
48 if (!have_result || (stack[i]->*access)().overrides()) {
49 result = (stack[i]->*access)().value();
50 have_result = 1;
51 }
52 }
53 }
54 }
55 #endif
56
57 inline void
58 find_int_parameter_in_appearance_stack(Stack<Ref<Appearance> >& stack,
59 Parameter<int>& (Appearance::*access)(),
60 int& result
61 )
62 {
63 int have_result = 0;
64 for (int i=stack.n()-1; i>=0; i--) {
65 if ((stack[i].pointer()->*access)().is_set()) {
66 if (!have_result || (stack[i].pointer()->*access)().overrides()) {
67 result = (stack[i].pointer()->*access)().value();
68 have_result = 1;
69 }
70 }
71 }
72 }
73
74 }
75
76 #endif
77
78 // Local Variables:
79 // mode: c++
80 // c-file-style: "CLJ"
81 // End: