1 /*
2 * PathVector - std::vector containing Geom::Path
3 * This file provides a set of operations that can be performed on PathVector,
4 * e.g. an affine transform.
5 *
6 * Authors:
7 * Johan Engelen <goejendaagh@zonnet.nl>
8 *
9 * Copyright 2008 authors
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it either under the terms of the GNU Lesser General Public
13 * License version 2.1 as published by the Free Software Foundation
14 * (the "LGPL") or, at your option, under the terms of the Mozilla
15 * Public License Version 1.1 (the "MPL"). If you do not alter this
16 * notice, a recipient may use your version of this file under either
17 * the MPL or the LGPL.
18 *
19 * You should have received a copy of the LGPL along with this library
20 * in the file COPYING-LGPL-2.1; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * You should have received a copy of the MPL along with this library
23 * in the file COPYING-MPL-1.1
24 *
25 * The contents of this file are subject to the Mozilla Public License
26 * Version 1.1 (the "License"); you may not use this file except in
27 * compliance with the License. You may obtain a copy of the License at
28 * http://www.mozilla.org/MPL/
29 *
30 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
31 * OF ANY KIND, either express or implied. See the LGPL or the MPL for
32 * the specific language governing rights and limitations.
33 */
35 #ifndef SEEN_GEOM_PATHVECTOR_CPP
36 #define SEEN_GEOM_PATHVECTOR_CPP
38 #include "pathvector.h"
40 #include "path.h"
41 #include "matrix.h"
43 namespace Geom {
45 // TODO: see which of these functions can be inlined for optimization
47 PathVector operator* (PathVector const & path_in, Matrix const &m)
48 {
49 PathVector path_out;
50 for(PathVector::const_iterator it = path_in.begin(); it != path_in.end(); ++it) {
51 path_out.push_back( (*it) * m );
52 }
53 return path_out;
54 }
56 /**
57 * Reverses all Paths and the order of paths in the vector as well
58 **/
59 PathVector reverse_paths_and_order (PathVector const & path_in)
60 {
61 PathVector path_out;
62 for (PathVector::const_reverse_iterator it = path_in.rbegin(); it != path_in.rend(); ++it) {
63 path_out.push_back( (*it).reverse() );
64 }
65 return path_out;
66 }
68 Rect bounds_fast( PathVector const& pv )
69 {
70 typedef PathVector::const_iterator const_iterator;
72 Rect bound;
73 if (pv.empty()) return bound;
75 bound = (pv.begin())->boundsFast();
76 double top = bound.top();
77 double bottom = bound.bottom();
78 double left = bound.left();
79 double right = bound.right();
80 for (const_iterator it = ++(pv.begin()); it != pv.end(); ++it)
81 {
82 bound = it->boundsFast();
83 if ( top > bound.top() ) top = bound.top();
84 if ( bottom < bound.bottom() ) bottom = bound.bottom();
85 if ( left > bound.left() ) left = bound.left();
86 if ( right < bound.right() ) right = bound.right();
87 }
88 bound[0][0] = left;
89 bound[0][1] = right;
90 bound[1][0] = top;
91 bound[1][1] = bottom;
92 return bound;
93 }
95 Rect bounds_exact( PathVector const& pv )
96 {
97 typedef PathVector::const_iterator const_iterator;
99 Rect bound;
100 if (pv.empty()) return bound;
102 bound = (pv.begin())->boundsExact();
103 double top = bound.top();
104 double bottom = bound.bottom();
105 double left = bound.left();
106 double right = bound.right();
107 for (const_iterator it = ++(pv.begin()); it != pv.end(); ++it)
108 {
109 bound = it->boundsExact();
110 if ( top > bound.top() ) top = bound.top();
111 if ( bottom < bound.bottom() ) bottom = bound.bottom();
112 if ( left > bound.left() ) left = bound.left();
113 if ( right < bound.right() ) right = bound.right();
114 }
115 bound[0][0] = left;
116 bound[0][1] = right;
117 bound[1][0] = top;
118 bound[1][1] = bottom;
119 return bound;
120 }
122 } // namespace Geom
124 #endif // SEEN_GEOM_PATHVECTOR_CPP
126 /*
127 Local Variables:
128 mode:c++
129 c-file-style:"stroustrup"
130 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
131 indent-tabs-mode:nil
132 fill-column:99
133 End:
134 */
135 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :