MPQC 2.3.1
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
34namespace sc {
35
36// cannot be used with g++ 2.6-94q4 and has other bugs anyway
37#if 0
38template <class T1, class T2>
39void
40find_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
57inline void
58find_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:

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