gemrb/core/Region.cpp

   1 /* GemRB - Infinity Engine Emulator
   2  * Copyright (C) 2003 The GemRB Project
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  *
  19  */
  20
  21 #include "Region.h"
  22
  23 /*************** point ****************************/
  24 Point::Point(void)
  25 {
  26         x = y = 0;
  27         //memset(this, 0, sizeof(*this));
  28 }
  29
  30 Point::~Point(void)
  31 {
  32 }
  33
  34 Point::Point(const Point& pnt)
  35 {
  36         x=pnt.x;
  37         y=pnt.y;
  38         //memcpy(this, &pnt, sizeof(*this));
  39 }
  40
  41 Point& Point::operator=(const Point& pnt)
  42 {
  43         x = pnt.x;
  44         y = pnt.y;
  45         //memcpy(this, &pnt, sizeof(*this));
  46         return *this;
  47 }
  48
  49 bool Point::operator==(const Point& pnt)
  50 {
  51         if (( x == pnt.x ) && ( y == pnt.y )) {
  52                 return true;
  53         }
  54         return false;
  55         //return !memcmp( this, &pnt, sizeof(*this));
  56 }
  57
  58 bool Point::operator!=(const Point& pnt)
  59 {
  60         if (( x == pnt.x ) && ( y == pnt.y )) {
  61                 return false;
  62         }
  63         return true;
  64 }
  65
  66 Point::Point(short x, short y)
  67 {
  68         this->x = x;
  69         this->y = y;
  70 }
  71
  72 ieDword Point::asDword() const
  73 {
  74         return ((y & 0xFFFF) << 16) | (x & 0xFFFF);
  75 }
  76
  77 void Point::fromDword(ieDword val)
  78 {
  79         x = val & 0xFFFF;
  80         y = val >> 16;
  81 }
  82
  83 bool Point::isnull() const
  84 {
  85         if (x==0 && y==0) {
  86                 return true;
  87         }
  88         return false;
  89 }
  90
  91 bool Point::isempty() const
  92 {
  93         if (x==-1 && y==-1) {
  94                 return true;
  95         }
  96         return false;
  97 }
  98
  99 bool Point::PointInside(const Point &p) const
 100 {
 101         if (( p.x < 0 ) || ( p.x > x )) {
 102                 return false;
 103         }
 104         if (( p.y < 0 ) || ( p.y > y )) {
 105                 return false;
 106         }
 107         return true;
 108 }
 109
 110 /*************** region ****************************/
 111 Region::Region(void)
 112 {
 113         x = y = w = h = 0;
 114 }
 115
 116 Region::~Region(void)
 117 {
 118 }
 119
 120 Region::Region(const Region& rgn)
 121 {
 122         x = rgn.x;
 123         y = rgn.y;
 124         w = rgn.w;
 125         h = rgn.h;
 126 }
 127
 128 Region& Region::operator=(const Region& rgn)
 129 {
 130         x = rgn.x;
 131         y = rgn.y;
 132         w = rgn.w;
 133         h = rgn.h;
 134         return *this;
 135 }
 136
 137 bool Region::operator==(const Region& rgn)
 138 {
 139         if (( x == rgn.x ) && ( y == rgn.y ) && ( w == rgn.w ) && ( h == rgn.h )) {
 140                 return true;
 141         }
 142         return false;
 143 }
 144
 145 bool Region::operator!=(const Region& rgn)
 146 {
 147         if (( x != rgn.x ) || ( y != rgn.y ) || ( w != rgn.w ) || ( h != rgn.h )) {
 148                 return true;
 149         }
 150         return false;
 151 }
 152
 153 Region::Region(int x, int y, int w, int h)
 154 {
 155         this->x = x;
 156         this->y = y;
 157         this->w = w;
 158         this->h = h;
 159 }
 160
 161 Region::Region(const Point &p, int w, int h)
 162 {
 163         this->x = p.x;
 164         this->y = p.y;
 165         this->w = w;
 166         this->h = h;
 167 }
 168
 169 bool Region::PointInside(const Point &p) const
 170 {
 171         if (( p.x < x ) || ( p.x > ( x + w ) )) {
 172                 return false;
 173         }
 174         if (( p.y < y ) || ( p.y > ( y + h ) )) {
 175                 return false;
 176         }
 177         return true;
 178 }
 179
 180 bool Region::PointInside(unsigned short XPos, unsigned short YPos) const
 181 {
 182         if (( XPos < x ) || ( XPos > ( x + w ) )) {
 183                 return false;
 184         }
 185         if (( YPos < y ) || ( YPos > ( y + h ) )) {
 186                 return false;
 187         }
 188         return true;
 189 }
 190
 191 bool Region::InsideRegion(const Region& rgn) const
 192 {
 193         if (x > ( rgn.x + rgn.w )) {
 194                 return false;
 195         }
 196         if (( x + w ) < rgn.x) {
 197                 return false;
 198         }
 199         if (y > ( rgn.y + rgn.h )) {
 200                 return false;
 201         }
 202         if (( y + h ) < rgn.y) {
 203                 return false;
 204         }
 205         return true;
 206 }
 207
 208 void Region::Normalize()
 209 {
 210         if (x > w) {
 211                 int tmp = x;
 212                 x = w;
 213                 w = tmp - x;
 214         } else {
 215                 w -= x;
 216         }
 217         if (y > h) {
 218                 int tmp = y;
 219                 y = h;
 220                 h = tmp - y;
 221         } else {
 222                 h -= y;
 223         }
 224 }