1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Defines all inline functions of the osn types. |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef OSNTYPES_INL |
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20 #define OSNTYPES_INL |
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21 |
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22 // ======== GLOBAL FUNCTIONS ======== |
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23 |
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24 // ----------------------------------------------------------------------------- |
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25 // CSize operator+ |
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26 // ----------------------------------------------------------------------------- |
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27 // |
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28 inline const CSize operator+( const CSize& aLeftHandSide, |
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29 const CSize& aRightHandSide ) |
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30 { |
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31 return CSize( aLeftHandSide ) += aRightHandSide; |
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32 } |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // CSize operator- |
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36 // ----------------------------------------------------------------------------- |
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37 // |
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38 inline const CSize operator-( const CSize& aLeftHandSide, |
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39 const CSize& aRightHandSide ) |
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40 { |
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41 return CSize( aLeftHandSide ) -= aRightHandSide; |
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42 } |
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43 |
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44 // ----------------------------------------------------------------------------- |
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45 // CPoint operator+ |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 inline const CPoint operator+( const CPoint& aLeftHandSide, |
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49 const CPoint& aRightHandSide ) |
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50 { |
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51 return CPoint( aLeftHandSide ) += aRightHandSide; |
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52 } |
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53 |
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54 // ----------------------------------------------------------------------------- |
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55 // CSize operator- |
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56 // ----------------------------------------------------------------------------- |
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57 // |
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58 inline const CPoint operator-( const CPoint& aLeftHandSide, |
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59 const CPoint& aRightHandSide ) |
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60 { |
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61 return CPoint( aLeftHandSide ) -= aRightHandSide; |
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62 } |
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63 |
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64 // ----------------------------------------------------------------------------- |
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65 // CRect + CPoint |
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66 // Point addition. |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 inline const CRect operator+( const CRect& aRect, |
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70 const CPoint& aPoint ) |
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71 { |
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72 return CRect( aRect ) += aPoint; |
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73 } |
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74 |
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75 // ----------------------------------------------------------------------------- |
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76 // CRect - CPoint |
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77 // Point substraction. |
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78 // ----------------------------------------------------------------------------- |
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79 // |
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80 inline const CRect operator-( const CRect& aRect, |
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81 const CPoint& aPoint ) |
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82 { |
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83 return CRect( aRect ) -= aPoint; |
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84 } |
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85 |
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86 // ----------------------------------------------------------------------------- |
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87 // CRect + CSize |
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88 // Size addition. |
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89 // ----------------------------------------------------------------------------- |
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90 // |
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91 inline const CRect operator+( const CRect& aRect, |
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92 const CSize& aSize ) |
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93 { |
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94 return CRect( aRect ) += aSize; |
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95 } |
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96 |
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97 // ----------------------------------------------------------------------------- |
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98 // CRect - CSize |
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99 // Size substraction. |
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100 // ----------------------------------------------------------------------------- |
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101 // |
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102 inline const CRect operator-( const CRect& aRect, |
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103 const CSize& aSize ) |
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104 { |
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105 return CRect( aRect ) -= aSize; |
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106 } |
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107 |
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108 // ======== MEMBER FUNCTIONS ======== |
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109 |
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110 // ----------------------------------------------------------------------------- |
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111 // CSize::CSize |
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112 // Default Constructor. |
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113 // ----------------------------------------------------------------------------- |
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114 // |
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115 inline CSize::CSize() : |
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116 mX( 0 ), |
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117 mY( 0 ) |
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118 { |
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119 } |
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120 |
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121 // ----------------------------------------------------------------------------- |
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122 // CSize::CSize |
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123 // Parameterized constructor. |
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124 // ----------------------------------------------------------------------------- |
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125 // |
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126 inline CSize::CSize( int32 aX, int32 aY ) : |
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127 mX( aX ), |
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128 mY( aY ) |
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129 { |
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130 } |
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131 |
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132 // ----------------------------------------------------------------------------- |
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133 // CSize::CSize |
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134 // Copy Constructor. |
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135 // ----------------------------------------------------------------------------- |
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136 // |
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137 inline CSize::CSize( const CSize& aSize ) : |
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138 mX( aSize.mX ), |
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139 mY( aSize.mY ) |
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140 { |
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141 } |
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142 |
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143 // ----------------------------------------------------------------------------- |
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144 // CSize::AsPoint |
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145 // Assignment substraction. |
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146 // ----------------------------------------------------------------------------- |
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147 // |
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148 inline CPoint CSize::AsPoint() |
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149 { |
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150 return CPoint( mX, mY ); |
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151 } |
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152 |
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153 // ----------------------------------------------------------------------------- |
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154 // CSize::operator== |
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155 // Logical comparison. |
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156 // ----------------------------------------------------------------------------- |
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157 // |
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158 inline bool32 CSize::operator==( const CSize& aSize ) const |
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159 { |
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160 return ( mX == aSize.mX ) && ( mY == aSize.mY ); |
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161 } |
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162 |
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163 // ----------------------------------------------------------------------------- |
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164 // CSize::operator!= |
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165 // Logical comparison. |
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166 // ----------------------------------------------------------------------------- |
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167 // |
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168 inline bool32 CSize::operator!=( const CSize& aSize ) const |
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169 { |
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170 // call operator== and negate it (logically) |
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171 return !( *this == aSize ); |
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172 } |
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173 |
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174 // ----------------------------------------------------------------------------- |
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175 // CSize::operator+= |
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176 // Assignment addition. |
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177 // ----------------------------------------------------------------------------- |
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178 // |
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179 inline CSize& CSize::operator+=( const CSize& aSize ) |
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180 { |
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181 mX += aSize.mX; |
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182 mY += aSize.mY; |
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183 return *this; |
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184 } |
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185 |
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186 // ----------------------------------------------------------------------------- |
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187 // CSize::operator-= |
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188 // Assignment substraction. |
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189 // ----------------------------------------------------------------------------- |
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190 // |
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191 inline CSize& CSize::operator-=( const CSize& aSize ) |
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192 { |
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193 mX -= aSize.mX; |
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194 mY -= aSize.mY; |
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195 return *this; |
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196 } |
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197 |
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198 // ----------------------------------------------------------------------------- |
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199 // CPoint::CPoint |
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200 // Default Constructor. |
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201 // ----------------------------------------------------------------------------- |
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202 // |
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203 inline CPoint::CPoint() : |
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204 mX( 0 ), |
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205 mY( 0 ) |
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206 { |
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207 } |
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208 |
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209 // ----------------------------------------------------------------------------- |
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210 // CPoint::CPoint |
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211 // Parameterized Constructor. |
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212 // ----------------------------------------------------------------------------- |
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213 // |
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214 inline CPoint::CPoint( int32 aX, int32 aY ) : |
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215 mX( aX ), |
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216 mY( aY ) |
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217 { |
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218 } |
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219 |
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220 // ----------------------------------------------------------------------------- |
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221 // CPoint::CPoint |
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222 // Copy Constructor. |
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223 // ----------------------------------------------------------------------------- |
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224 // |
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225 inline CPoint::CPoint( const CPoint& aPoint ) : |
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226 mX( aPoint.mX ), |
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227 mY( aPoint.mY ) |
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228 { |
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229 } |
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230 |
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231 // ----------------------------------------------------------------------------- |
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232 // CPoint::AsSize |
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233 // Assignment substraction. |
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234 // ----------------------------------------------------------------------------- |
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235 // |
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236 inline CSize CPoint::AsSize() |
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237 { |
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238 return CSize( mX, mY ); |
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239 } |
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240 |
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241 // ----------------------------------------------------------------------------- |
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242 // CPoint::operator== |
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243 // Logical comparison. |
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244 // ----------------------------------------------------------------------------- |
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245 // |
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246 inline bool32 CPoint::operator==( const CPoint& aPoint ) const |
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247 { |
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248 return ( mX == aPoint.mX ) && ( mY == aPoint.mY ); |
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249 } |
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250 |
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251 // ----------------------------------------------------------------------------- |
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252 // CPoint::operator!= |
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253 // Logical comparison. |
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254 // ----------------------------------------------------------------------------- |
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255 // |
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256 inline bool32 CPoint::operator!=( const CPoint& aPoint ) const |
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257 { |
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258 // call operator== and negate it (logically) |
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259 return !( *this == aPoint ); |
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260 } |
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261 |
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262 // ----------------------------------------------------------------------------- |
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263 // CPoint::operator+= |
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264 // Assignment addition. |
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265 // ----------------------------------------------------------------------------- |
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266 // |
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267 inline CPoint& CPoint::operator+=( const CPoint& aPoint ) |
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268 { |
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269 mX += aPoint.mX; |
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270 mY += aPoint.mY; |
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271 return *this; |
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272 } |
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273 |
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274 // ----------------------------------------------------------------------------- |
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275 // CPoint::operator-= |
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276 // Assignment substraction. |
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277 // ----------------------------------------------------------------------------- |
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278 // |
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279 inline CPoint& CPoint::operator-=( const CPoint& aPoint ) |
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280 { |
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281 mX -= aPoint.mX; |
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282 mY -= aPoint.mY; |
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283 return *this; |
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284 } |
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285 |
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286 // ----------------------------------------------------------------------------- |
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287 // CRect::CRect |
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288 // Default Constructor. |
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289 // ----------------------------------------------------------------------------- |
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290 // |
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291 inline CRect::CRect() : |
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292 mX( 0 ), |
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293 mY( 0 ), |
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294 mWidth( 0 ), |
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295 mHeight( 0 ) |
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296 { |
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297 } |
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298 |
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299 // ----------------------------------------------------------------------------- |
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300 // CRect::CRect |
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301 // Parameterized Constructor. |
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302 // ----------------------------------------------------------------------------- |
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303 // |
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304 inline CRect::CRect( int32 aX, int32 aY, int32 aWidth, int32 aHeight ) : |
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305 mX( aX ), |
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306 mY( aY ), |
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307 mWidth( aWidth ), |
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308 mHeight( aHeight ) |
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309 { |
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310 } |
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311 |
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312 // ----------------------------------------------------------------------------- |
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313 // CRect::CRect |
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314 // Parameterized Constructor. |
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315 // ----------------------------------------------------------------------------- |
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316 // |
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317 inline CRect::CRect( const CPoint& aTopLeft, const CSize& aSize ) : |
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318 mX( aTopLeft.mX ), |
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319 mY( aTopLeft.mY ), |
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320 mWidth( aSize.mX ), |
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321 mHeight( aSize.mY ) |
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322 { |
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323 } |
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324 |
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325 // ----------------------------------------------------------------------------- |
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326 // CRect::CRect |
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327 // Parameterized Constructor. |
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328 // ----------------------------------------------------------------------------- |
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329 // |
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330 inline CRect::CRect( const CSize& aSize ) : |
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331 mX( 0 ), |
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332 mY( 0 ), |
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333 mWidth( aSize.mX ), |
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334 mHeight( aSize.mY ) |
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335 { |
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336 } |
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337 |
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338 // ----------------------------------------------------------------------------- |
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339 // CRect::CRect |
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340 // Copy Constructor. |
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341 // ----------------------------------------------------------------------------- |
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342 // |
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343 inline CRect::CRect( const CRect& aRect ) : |
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344 mX( aRect.mX ), |
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345 mY( aRect.mY ), |
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346 mWidth( aRect.mWidth ), |
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347 mHeight( aRect.mHeight ) |
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348 { |
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349 } |
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350 |
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351 // ----------------------------------------------------------------------------- |
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352 // CRect::IsEmpty |
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353 // Check for emptyness. |
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354 // ----------------------------------------------------------------------------- |
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355 // |
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356 inline bool32 CRect::IsEmpty() const |
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357 { |
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358 // is empty if either width or heigth are zero |
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359 return ( !mHeight ) || ( !mWidth ); |
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360 } |
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361 |
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362 // ----------------------------------------------------------------------------- |
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363 // CRect::Intersects |
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364 // Checks whether two rects are intersecting. |
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365 // ----------------------------------------------------------------------------- |
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366 // |
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367 inline bool32 CRect::Intersects( CRect aRect ) const |
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368 { |
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369 if( IsEmpty() || aRect.IsEmpty() ) |
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370 { |
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371 return false; |
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372 } |
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373 |
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374 aRect.Normalize(); |
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375 |
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376 if( ( mWidth >= 0 ) && ( mHeight >= 0 ) ) |
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377 { |
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378 return FastIntersects( aRect ); |
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379 } |
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380 else if ( ( mWidth < 0 ) && ( mHeight < 0 ) ) |
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381 { |
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382 return ( mX > aRect.mX ) && |
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383 ( mY > aRect.mY ) && |
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384 ( ( mX + mWidth ) < ( aRect.mX + aRect.mWidth ) ) && |
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385 ( ( mY + mHeight ) < ( aRect.mY + aRect.mHeight ) ); |
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386 } |
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387 else if ( ( mWidth >= 0 ) && ( mHeight < 0 ) ) |
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388 { |
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389 return ( ( mX + mWidth ) > aRect.mX ) && |
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390 ( mY > aRect.mY ) && |
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391 ( mX < ( aRect.mX + aRect.mWidth ) ) && |
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392 ( ( mY + mHeight ) < ( aRect.mY + aRect.mHeight ) ); |
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393 } |
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394 else // ( mWidth < 0 ) && ( mHeight >= 0 ) |
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395 { |
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396 return ( mX > aRect.mX ) && |
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397 ( ( mY + mHeight ) > aRect.mY ) && |
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398 ( ( mX + mWidth ) < ( aRect.mX + aRect.mWidth ) ) && |
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399 ( mY < ( aRect.mY + aRect.mHeight ) ); |
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400 } |
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401 } |
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402 |
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403 // ----------------------------------------------------------------------------- |
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404 // CRect::FastIntersects |
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405 // Checks whether two normalized rects are intersecting. |
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406 // ----------------------------------------------------------------------------- |
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407 // |
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408 inline bool32 CRect::FastIntersects( const CRect& aRect ) const |
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409 { |
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410 return !( IsEmpty() || // Empty rects do not |
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411 aRect.IsEmpty() || // intersect. |
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412 !IsNormalized() || // Non-normalized rects are |
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413 !aRect.IsNormalized() || // ignored. |
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414 ( mX + mWidth ) <= aRect.mX || // Top or left side of aRect |
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415 ( mY + mHeight ) <= aRect.mY || // inside of this rect? |
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416 mX >= ( aRect.mX + aRect.mWidth ) || // Or the other way |
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417 mY >= ( aRect.mY + aRect.mHeight ) ); // around? |
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418 } |
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419 |
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420 // ----------------------------------------------------------------------------- |
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421 // CRect::Intersection |
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422 // Changes this rect to become the intersection rect of this rect and aRect. |
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423 // ----------------------------------------------------------------------------- |
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424 // |
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425 inline void CRect::Intersection( CRect aRect ) |
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426 { |
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427 Normalize(); |
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428 aRect.Normalize(); |
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429 |
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430 FastIntersection( aRect ); |
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431 } |
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432 |
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433 // ----------------------------------------------------------------------------- |
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434 // CRect::FastIntersection |
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435 // Changes this rect to become the intersection rect of this rect and aRect. |
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436 // Works only for normalized rectangles. |
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437 // ----------------------------------------------------------------------------- |
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438 // |
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439 inline void CRect::FastIntersection( const CRect& aRect ) |
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440 { |
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441 // if not intersecting at all, the intersection area is zero. |
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442 if( !FastIntersects( aRect ) ) |
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443 { |
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444 mX = 0; |
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445 mY = 0; |
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446 mWidth = 0; |
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447 mHeight = 0; |
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448 return; |
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449 } |
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450 // this rect's left side lies left of aRect's left side |
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451 if( mX < aRect.mX ) |
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452 { |
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453 mWidth -= ( aRect.mX - mX ); // adjust this rect's width |
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454 mX = aRect.mX; // move this rect's left side |
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455 } |
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456 // this rect's top side lies above aRect's top side |
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457 if( mY < aRect.mY ) |
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458 { |
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459 mHeight -= ( aRect.mY - mY ); // adjust this rect's height |
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460 mY = aRect.mY; // move this rect's top side |
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461 } |
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462 // this rect's right side lies right of aRect's right side |
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463 if( ( mX + mWidth ) > ( aRect.mX + aRect.mWidth ) ) |
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464 { |
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465 mWidth = ( aRect.mX + aRect.mWidth ) - mX; // adjust this rect's width |
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466 } |
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467 // this rect's bottom side lies below aRect's bottom side |
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468 if( ( mY + mHeight ) > ( aRect.mY + aRect.mHeight ) ) |
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469 { |
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470 mHeight = ( aRect.mY + aRect.mHeight ) - mY; // adjust this rect's |
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471 // height |
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472 } |
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473 } |
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474 |
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475 // ----------------------------------------------------------------------------- |
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476 // CRect::Normalize |
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477 // Makes sure the rect has positive width and height. |
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478 // ----------------------------------------------------------------------------- |
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479 // |
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480 inline void CRect::Normalize() |
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481 { |
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482 if( mWidth < 0 ) |
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483 { |
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484 mX += mWidth; |
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485 mWidth = -mWidth; |
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486 } |
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487 if( mHeight < 0 ) |
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488 { |
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489 mY += mHeight; |
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490 mHeight = -mHeight; |
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491 } |
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492 } |
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493 |
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494 // ----------------------------------------------------------------------------- |
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495 // CRect::IsNormalized |
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496 // Tests whether is rectangle is normalized. |
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497 // ----------------------------------------------------------------------------- |
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498 // |
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499 inline bool32 CRect::IsNormalized() const |
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500 { |
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501 return ( mWidth >= 0 ) && ( mHeight >= 0 ); |
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502 } |
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503 |
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504 // ----------------------------------------------------------------------------- |
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505 // CRect::operator== |
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506 // Logical comparison. |
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507 // ----------------------------------------------------------------------------- |
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508 // |
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509 inline bool32 CRect::operator==( const CRect& aRect ) const |
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510 { |
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511 return ( mY == aRect.mY ) && |
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512 ( mX == aRect.mX ) && |
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513 ( mHeight == aRect.mHeight ) && |
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514 ( mWidth == aRect.mWidth ); |
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515 } |
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516 |
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517 // ----------------------------------------------------------------------------- |
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518 // CRect::operator!= |
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519 // Logical comparison. |
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520 // ----------------------------------------------------------------------------- |
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521 // |
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522 inline bool32 CRect::operator!=( const CRect& aRect ) const |
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523 { |
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524 // is empty, if either width or height are zero |
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525 return !( *this == aRect ); |
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526 } |
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527 |
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528 // ----------------------------------------------------------------------------- |
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529 // CPoint::operator+= |
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530 // Point addition. |
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531 // ----------------------------------------------------------------------------- |
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532 // |
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533 inline CRect& CRect::operator+=( const CPoint& aPoint ) |
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534 { |
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535 mX += aPoint.mX; |
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536 mY += aPoint.mY; |
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537 return *this; |
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538 } |
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539 |
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540 // ----------------------------------------------------------------------------- |
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541 // CPoint::operator-= |
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542 // Point substraction. |
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543 // ----------------------------------------------------------------------------- |
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544 // |
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545 inline CRect& CRect::operator-=( const CPoint& aPoint ) |
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546 { |
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547 mX -= aPoint.mX; |
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548 mY -= aPoint.mY; |
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549 return *this; |
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550 } |
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551 |
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552 // ----------------------------------------------------------------------------- |
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553 // CPoint::operator+= |
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554 // Size addition. |
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555 // ----------------------------------------------------------------------------- |
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556 // |
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557 inline CRect& CRect::operator+=( const CSize& aSize ) |
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558 { |
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559 mWidth += aSize.mX; |
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560 mHeight += aSize.mY; |
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561 return *this; |
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562 } |
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563 |
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564 // ----------------------------------------------------------------------------- |
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565 // CPoint::operator-= |
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566 // Size substraction. |
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567 // ----------------------------------------------------------------------------- |
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568 // |
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569 inline CRect& CRect::operator-=( const CSize& aSize ) |
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570 { |
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571 mWidth -= aSize.mX; |
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572 mHeight -= aSize.mY; |
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573 return *this; |
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574 } |
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575 |
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576 #endif // OSNTYPES_INL__ |
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