src/tiledimage-impl.cpp

   1 /****************************
   2 ** Tsunagari Tile Engine   **
   3 ** tiledimage-impl.cpp     **
   4 ** Copyright 2012 OmegaSDG **
   5 ****************************/
   6
   7 // **********
   8 // Permission is hereby granted, free of charge, to any person obtaining a copy
   9 // of this software and associated documentation files (the "Software"), to
  10 // deal in the Software without restriction, including without limitation the
  11 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  12 // sell copies of the Software, and to permit persons to whom the Software is
  13 // furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in
  16 // all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  24 // IN THE SOFTWARE.
  25 // **********
  26
  27 #include <Gosu/Bitmap.hpp>
  28
  29 #include "gosu-cbuffer.h"
  30 #include "image-impl.h"
  31 #include "tiledimage-impl.h"
  32 #include "window.h"
  33
  34 TiledImage* TiledImage::create(void* data, size_t length,
  35                 unsigned tileW, unsigned tileH)
  36 {
  37         TiledImageImpl* tii = new TiledImageImpl;
  38         if (tii->init(data, length, tileW, tileH))
  39                 return tii;
  40         else {
  41                 delete tii;
  42                 return NULL;
  43         }
  44 }
  45
  46
  47 bool TiledImageImpl::init(void* data, size_t length, unsigned tileW, unsigned tileH)
  48 {
  49         Gosu::CBuffer buffer(data, length);
  50         Gosu::Bitmap bitmap;
  51
  52         Gosu::loadImageFile(bitmap, buffer.frontReader());
  53
  54         for (unsigned y = 0; y < bitmap.height(); y += tileH) {
  55                 for (unsigned x = 0; x < bitmap.width(); x += tileW) {
  56                         ImageImpl* img = new ImageImpl;
  57                         if (img->init(bitmap, x, y, tileW, tileH))
  58                                 vec.push_back(ImageRef(img));
  59                         else {
  60                                 delete img;
  61                                 return false;
  62                         }
  63                 }
  64         }
  65
  66         return true;
  67 }
  68
  69
  70 size_t TiledImageImpl::size() const
  71 {
  72         return vec.size();
  73 }
  74
  75
  76 ImageRef& TiledImageImpl::operator[](size_t n)
  77 {
  78         return vec[n];
  79 }
  80
  81 const ImageRef& TiledImageImpl::operator[](size_t n) const
  82 {
  83         return vec[n];
  84 }
  85