musk/image.cpp

   1 #include "image.h"
   2
   3 #include <SDL_image/SDL_image.h>
   4
   5 namespace musk {
   6
   7   using std::string;
   8   using std::pair;
   9   using std::make_pair;
  10
  11   Image::Image(const string& path) :
  12     surface_(0),
  13     clipMask_(),
  14
  15     position_(0, 0) {
  16
  17     surface_ = IMG_Load(path.c_str());
  18     if (surface_ != 0) {
  19       SDL_Surface *optimized = SDL_DisplayFormat(surface_);
  20       SDL_FreeSurface(surface_);
  21       surface_ = optimized;
  22     }
  23
  24     clipMask_.x = 0;
  25     clipMask_.y = 0;
  26     clipMask_.w = width();
  27     clipMask_.h = height();
  28   }
  29
  30   Image::~Image()
  31   {
  32     SDL_FreeSurface(surface_);
  33     surface_ = 0;
  34   }
  35
  36   int Image::width() const {
  37     return surface_->w;
  38   }
  39
  40   int Image::height() const {
  41     return surface_->h;
  42   }
  43
  44   const std::pair<int32_t, int32_t> Image::position() const {
  45     return position_;
  46   }
  47
  48   void Image::setPosition(const std::pair<int32_t, int32_t>& position) {
  49     position_ = position;
  50   }
  51
  52   void Image::draw(SDL_Surface *dest) const
  53   {
  54     SDL_Rect dstrect = { position_.first, position_.second, 0, 0 };
  55     SDL_BlitSurface(surface_, const_cast<SDL_Rect *>(&clipMask_),
  56                     dest, &dstrect);
  57   }
  58
  59 } // namespace musk