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annotate engine/core/util/structures/rect.h @ 697:ecaa4d98f05f tip

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Abstracted the GUI code and refactored the GUIChan-specific code into its own module. * Most of the GUIChan code has been refactored into its own gui/guichan module. However, references to the GuiFont class still persist in the Engine and GuiManager code and these will need further refactoring. * GuiManager is now an abstract base class which specific implementations (e.g. GUIChan) should subclass. * The GUIChan GUI code is now a concrete implementation of GuiManager, most of which is in the new GuiChanGuiManager class. * The GUI code in the Console class has been refactored out of the Console and into the GUIChan module as its own GuiChanConsoleWidget class. The rest of the Console class related to executing commands was left largely unchanged. * Existing client code may need to downcast the GuiManager pointer received from FIFE::Engine::getGuiManager() to GuiChanGuiManager, since not all functionality is represented in the GuiManager abstract base class. Python client code can use the new GuiChanGuiManager.castTo static method for this purpose.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 18 Jun 2011 00:28:40 -1000
parents c0c3f64bfc2d
children
rev   line source
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 /***************************************************************************
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23
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24 Rectangle intersection code copied and modified from the guichan 0.4
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25 source, which is released under the BSD license.
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26
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27 Copyright (c) 2004, 2005, 2006 Olof Naessén and Per Larsson All rights reserved.
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28
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29 * Redistribution and use in source and binary forms, with or without modification,
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30 are permitted provided that the following conditions are met:
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31 Redistributions of source code must retain the above copyright notice,
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32 this list of conditions and the following disclaimer.
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33
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34 * Redistributions in binary form must reproduce the above copyright notice,
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35 this list of conditions and the following disclaimer in the documentation
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36 and/or other materials provided with the distribution.
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37
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38 * Neither the name of the Guichan nor the names of its contributors may be used
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39 to endorse or promote products derived from this software without specific
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40 prior written permission.
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41
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42 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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43 OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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44 AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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45 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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46 OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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47 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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48 AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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49 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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50 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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51
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52 For more Information about guichan see: http://guichan.sourceforge.net
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53
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54 ****************************************************************************/
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55
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56 #ifndef FIFE_VIDEO_RECT_H
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57 #define FIFE_VIDEO_RECT_H
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58
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59 // Standard C++ library includes
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60 #include <iostream>
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61
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62 // 3rd party library includes
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63
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64 // FIFE includes
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65 // These includes are split up in two parts, separated by one empty line
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66 // First block: files included from the FIFE root src directory
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67 // Second block: files included from the same folder
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68 #include "point.h"
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69
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70 namespace FIFE {
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71
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72 /** A Rectangle on screen.
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73 *
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74 * This is a small helper class used for screen coordinate arithmetics.
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75 * The same thoughts reasong using @b int as value type as in Point apply.
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76 *
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77 * @see Point
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78 */
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79 template <typename T>
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80 class RectType {
0
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81 public:
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82 /** The X Coordinate.
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83 */
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84 T x;
0
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85 /** The Y Coordinate.
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86 */
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87 T y;
0
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88 /** Width of the rectangle.
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89 */
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90 T w;
0
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91 /** Height of the rectangle.
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92 */
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93 T h;
0
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94
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95 /** Constructor.
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96 *
0
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97 * Creates a new Rect with the values defaulting to 0.
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98 */
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99 explicit RectType(T x = 0, T y = 0, T w = 0, T h = 0) : x(x), y(y), w(w), h(h) {
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100 }
0
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101
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102 /** The X coordinate of the right edge.
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103 */
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104 T right() const;
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105
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parents:
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106 /** The Y coordinate of the bottom edge.
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107 */
622
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diff changeset
108 T bottom() const;
0
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109
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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110 /** Equivalence operator.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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111 *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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112 * @param rect The rectangle to which this is compared.
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113 * @return True only if both rectangle values are all equal.
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114 */
622
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115 bool operator==(const RectType<T>& rect ) const;
0
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116
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117 /** Checks whether a rectangle contains a Point.
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118 *
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119 * @param p The point that is checked.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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120 * @return True if the point lies inside the rectangle or on one of its borders.
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121 */
622
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122 bool contains( const PointType2D<T>& point ) const;
0
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123
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124 /** Check whether two rectangles share some area.
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125 *
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126 * @param rect The other rectangle that is checked.
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127 * @return True, if and only if both rectangles have some covered area in common.
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128 * This includes edges that cover each other.
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129 * @note This operation is commutative.
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130 */
622
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131 bool intersects( const RectType<T>& rect ) const;
0
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132
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133 /** Calculate rectangle intersection in place
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134 *
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135 * @param rect The other rectangle that is checked.
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136 * @return True, if and only if both rectangles have some covered area in common.
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137 * This includes edges that cover each other.
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138 */
622
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139 bool intersectInplace( const RectType<T>& rect );
0
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140
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141 };
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142
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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143 /** Stream output operator.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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144 *
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145 * Useful for debugging purposes, this will output the coordinates
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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146 * of the rectangle to the stream.
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147 */
622
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148 template<typename T>
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149 std::ostream& operator<<(std::ostream& os, const RectType<T>& r) {
c0c3f64bfc2d * Templatized Rect to extend it's functionality beyond integers
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150 return
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151 os << "("<<r.x<<","<<r.y<<")-("<<r.w<<","<<r.h<<")";
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152 }
0
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153
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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154 //////////////// INLINE FUNCTIONS /////////////////////////
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155
622
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156 template<typename T>
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157 inline T RectType<T>::right() const {
0
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158 return x + w;
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159 }
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160
622
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161 template<typename T>
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162 inline T RectType<T>::bottom() const {
0
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163 return y + h;
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164 }
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165
622
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166 template<typename T>
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167 inline bool RectType<T>::operator==(const RectType<T>& rect ) const {
0
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168 return
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169 x == rect.x && y == rect.y && w == rect.w && h == rect.h;
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170 }
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171
622
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172 template<typename T>
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173 inline bool RectType<T>::contains( const PointType2D<T>& point ) const {
0
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174 return
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175 (((point.x >= x) && (point.x <= x + w))
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176 && ((point.y >= y) && (point.y <= y + h)));
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177 }
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178
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179
622
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180 template<typename T>
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181 inline bool RectType<T>::intersectInplace( const RectType<T>& rectangle ) {
0
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182 x = x - rectangle.x;
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183 y = y - rectangle.y;
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184
622
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185
0
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186 if (x < 0) {
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187 w += x;
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188 x = 0;
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189 }
622
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190
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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191 if (y < 0) {
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192 h += y;
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193 y = 0;
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194 }
622
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195
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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196 if (x + w > rectangle.w) {
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197 w = rectangle.w - x;
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198 }
622
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199
0
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200 if (y + h > rectangle.h) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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201 h = rectangle.h - y;
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202 }
622
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203
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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204 x += rectangle.x;
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205 y += rectangle.y;
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206
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
207 if (w <= 0 || h <= 0) {
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208 h = 0;
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209 w = 0;
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210 return false;
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211 }
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212 return true;
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213 }
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214
622
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diff changeset
215 template<typename T>
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216 inline bool RectType<T>::intersects( const RectType<T>& rectangle ) const {
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diff changeset
217 T _x = x - rectangle.x;
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218 T _y = y - rectangle.y;
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219 T _w = w;
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220 T _h = h;
0
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221
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222
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223 if (_x < 0) {
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224 _w += _x;
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225 _x = 0;
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226 }
622
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227
0
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228 if (_y < 0) {
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229 _h += _y;
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230 _y = 0;
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231 }
622
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232
0
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233 if (_x + _w > rectangle.w) {
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234 _w = rectangle.w - _x;
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235 }
622
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236
0
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237 if (_y + _h > rectangle.h) {
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238 _h = rectangle.h - _y;
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239 }
622
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240
0
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241 if (_w <= 0 || _h <= 0) {
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242 return false;
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243 }
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244 return true;
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245 }
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246
622
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247 typedef RectType<int> Rect;
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248 typedef RectType<float> FloatRect;
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249 typedef RectType<double> DoubleRect;
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250
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251
0
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252 }
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253
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254 #endif