Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/Extent2D.cpp @ 1313:f30905f5d246 broker
Added support for OnGenericSdlEvent to GuiAdapter.
This makes it possible to piggyback app-specific logic
to special events (here, to support the Viewport refresh
events)
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Mon, 16 Mar 2020 11:12:39 +0100 |
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1 /** |
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2 * Stone of Orthanc |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Affero General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 |
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22 #include "Extent2D.h" |
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23 |
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24 #include <algorithm> |
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25 #include <cassert> |
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26 #include <limits> |
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27 |
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28 namespace OrthancStone |
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29 { |
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30 Extent2D::Extent2D(double x1, |
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31 double y1, |
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32 double x2, |
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33 double y2) : |
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34 empty_(false), |
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35 x1_(x1), |
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36 y1_(y1), |
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37 x2_(x2), |
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38 y2_(y2) |
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39 { |
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40 if (x1_ > x2_) |
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41 { |
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42 std::swap(x1_, x2_); |
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43 } |
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44 |
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45 if (y1_ > y2_) |
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46 { |
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47 std::swap(y1_, y2_); |
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48 } |
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49 } |
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50 |
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51 |
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52 void Extent2D::Reset() |
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53 { |
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54 empty_ = true; |
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55 x1_ = 0; |
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56 y1_ = 0; |
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57 x2_ = 0; |
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58 y2_ = 0; |
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59 } |
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60 |
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61 void Extent2D::AddPoint(double x, |
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62 double y) |
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63 { |
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64 if (empty_) |
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65 { |
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66 x1_ = x; |
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67 y1_ = y; |
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68 x2_ = x; |
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69 y2_ = y; |
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70 empty_ = false; |
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71 } |
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72 else |
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73 { |
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74 x1_ = std::min(x1_, x); |
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75 y1_ = std::min(y1_, y); |
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76 x2_ = std::max(x2_, x); |
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77 y2_ = std::max(y2_, y); |
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78 } |
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79 |
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80 assert(x1_ <= x2_ && |
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81 y1_ <= y2_); // This is the invariant of the structure |
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82 } |
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83 |
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84 |
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85 void Extent2D::Union(const Extent2D& other) |
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86 { |
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87 if (other.empty_) |
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88 { |
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89 return; |
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90 } |
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91 |
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92 if (empty_) |
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93 { |
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94 *this = other; |
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95 return; |
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96 } |
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97 |
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98 assert(!empty_); |
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99 |
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100 x1_ = std::min(x1_, other.x1_); |
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101 y1_ = std::min(y1_, other.y1_); |
99 | 102 x2_ = std::max(x2_, other.x2_); |
103 y2_ = std::max(y2_, other.y2_); | |
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104 |
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105 assert(x1_ <= x2_ && |
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106 y1_ <= y2_); // This is the invariant of the structure |
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107 } |
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108 |
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109 |
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110 bool Extent2D::IsEmpty() const |
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111 { |
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112 if (empty_) |
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113 { |
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114 return true; |
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115 } |
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116 else |
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117 { |
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118 assert(x1_ <= x2_ && |
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119 y1_ <= y2_); |
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120 return (x2_ <= x1_ + 10 * std::numeric_limits<double>::epsilon() || |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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121 y2_ <= y1_ + 10 * std::numeric_limits<double>::epsilon()); |
53bd9277b025
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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122 } |
53bd9277b025
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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123 } |
168 | 124 |
125 | |
126 bool Extent2D::Contains(double x, | |
127 double y) const | |
128 { | |
129 if (empty_) | |
130 { | |
131 return false; | |
132 } | |
133 else | |
134 { | |
135 return (x >= x1_ && x <= x2_ && | |
136 y >= y1_ && y <= y2_); | |
137 } | |
138 } | |
97
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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139 } |