lib/base/erect.cpp

   1 #include <lib/base/erect.h>
   2 #include <iostream>
   3
   4 /*****************************************************************************
   5   eRect member functions
   6  *****************************************************************************/
   7
   8 eRect::eRect( const ePoint &topLeft, const ePoint &bottomRight )
   9 {
  10         x1 = topLeft.x();
  11         y1 = topLeft.y();
  12         x2 = bottomRight.x();
  13         y2 = bottomRight.y();
  14 }
  15
  16 eRect eRect::normalize() const
  17 {
  18         eRect r;
  19         if ( x2 < x1 ) {                                // swap bad x values
  20         r.x1 = x2;
  21         r.x2 = x1;
  22         } else {
  23         r.x1 = x1;
  24         r.x2 = x2;
  25         }
  26         if ( y2 < y1 ) {                                // swap bad y values
  27         r.y1 = y2;
  28         r.y2 = y1;
  29         } else {
  30         r.y1 = y1;
  31         r.y2 = y2;
  32         }
  33         return r;
  34 }
  35
  36 void eRect::rect( int *x, int *y, int *w, int *h ) const
  37 {
  38         *x = x1;
  39         *y = y1;
  40         *w = x2-x1;
  41         *h = y2-y1;
  42 }
  43
  44 void eRect::coords( int *xp1, int *yp1, int *xp2, int *yp2 ) const
  45 {
  46         *xp1 = x1;
  47         *yp1 = y1;
  48         *xp2 = x2;
  49         *yp2 = y2;
  50 }
  51
  52 void eRect::moveTopLeft( const ePoint &p )
  53 {
  54         x2 += (p.x() - x1);
  55         y2 += (p.y() - y1);
  56         x1 = p.x();
  57         y1 = p.y();
  58 }
  59
  60 void eRect::moveBottomRight( const ePoint &p )
  61 {
  62         x1 += (p.x() - x2);
  63         y1 += (p.y() - y2);
  64         x2 = p.x();
  65         y2 = p.y();
  66 }
  67
  68 void eRect::moveTopRight( const ePoint &p )
  69 {
  70         x1 += (p.x() - x2);
  71         y2 += (p.y() - y1);
  72         x2 = p.x();
  73         y1 = p.y();
  74 }
  75
  76 void eRect::moveBottomLeft( const ePoint &p )
  77 {
  78         x2 += (p.x() - x1);
  79         y1 += (p.y() - y2);
  80         x1 = p.x();
  81         y2 = p.y();
  82 }
  83
  84 void eRect::moveCenter( const ePoint &p )
  85 {
  86         int w = x2 - x1;
  87         int h = y2 - y1;
  88         x1 = (p.x() - w/2);
  89         y1 = (p.y() - h/2);
  90         x2 = x1 + w;
  91         y2 = y1 + h;
  92 }
  93
  94 void eRect::setRect( int x, int y, int w, int h )
  95 {
  96         x1 = x;
  97         y1 = y;
  98         x2 = (x+w);
  99         y2 = (y+h);
 100 }
 101
 102 void eRect::setCoords( int xp1, int yp1, int xp2, int yp2 )
 103 {
 104         x1 = xp1;
 105         y1 = yp1;
 106         x2 = xp2;
 107         y2 = yp2;
 108 }
 109
 110 void eRect::setWidth( int w )
 111 {
 112         x2 = x1 + w;
 113 }
 114
 115 void eRect::setHeight( int h )
 116 {
 117         y2 = y1 + h;
 118 }
 119
 120 void eRect::setSize( const eSize &s )
 121 {
 122         x2 = s.width() +x1;
 123         y2 = s.height()+y1;
 124 }
 125
 126 bool eRect::contains( const ePoint &p) const
 127 {
 128         return p.x() >= x1 && p.x() < x2 &&
 129                    p.y() >= y1 && p.y() < y2;
 130 }
 131
 132 bool eRect::contains( const eRect &r) const
 133 {
 134         return r.x1 >= x1 &&
 135                                  r.x2 <= x2 &&
 136                                  r.y1 >= y1 &&
 137                                  r.y2 <= y2;
 138 }
 139
 140 eRect& eRect::operator|=(const eRect &r)
 141 {
 142         *this = *this | r;
 143         return *this;
 144 }
 145
 146 eRect& eRect::operator&=(const eRect &r)
 147 {
 148         *this = *this & r;
 149         return *this;
 150 }
 151
 152 eRect eRect::operator|(const eRect &r) const
 153 {
 154         if ( isValid() ) {
 155         if ( r.isValid() ) {
 156                 eRect tmp;
 157                 tmp.setLeft(   MIN( x1, r.x1 ) );
 158                 tmp.setRight(  MAX( x2, r.x2 ) );
 159                 tmp.setTop(        MIN( y1, r.y1 ) );
 160                 tmp.setBottom( MAX( y2, r.y2 ) );
 161                 return tmp;
 162         } else {
 163                 return *this;
 164         }
 165         } else {
 166         return r;
 167         }
 168 }
 169
 170 eRect eRect::unite( const eRect &r ) const
 171 {
 172         return *this | r;
 173 }
 174
 175 eRect eRect::operator&( const eRect &r ) const
 176 {
 177         eRect tmp;
 178         tmp.x1 = MAX( x1, r.x1 );
 179         tmp.x2 = MIN( x2, r.x2 );
 180         tmp.y1 = MAX( y1, r.y1 );
 181         tmp.y2 = MIN( y2, r.y2 );
 182         return tmp;
 183 }
 184
 185 eRect eRect::intersect( const eRect &r ) const
 186 {
 187         return *this & r;
 188 }
 189
 190 bool eRect::intersects( const eRect &r ) const
 191 {
 192         return ( MAX( x1, r.x1 ) < MIN( x2, r.x2 ) &&
 193                  MAX( y1, r.y1 ) < MIN( y2, r.y2 ) );
 194 }
 195
 196 bool operator==( const eRect &r1, const eRect &r2 )
 197 {
 198         return r1.x1==r2.x1 && r1.x2==r2.x2 && r1.y1==r2.y1 && r1.y2==r2.y2;
 199 }
 200
 201 bool operator!=( const eRect &r1, const eRect &r2 )
 202 {
 203         return r1.x1!=r2.x1 || r1.x2!=r2.x2 || r1.y1!=r2.y1 || r1.y2!=r2.y2;
 204 }