src/display_manager.cpp

   1 #include "display_manager.h"
   2
   3 #include <algorithm>
   4
   5 DisplayManager::DisplayManager()
   6 {
   7 }
   8
   9 DisplayManager::~DisplayManager()
  10 {
  11 }
  12
  13 void
  14 DisplayManager::add_drawable(Drawable* drawable, int layer)
  15 {
  16   DisplayList::iterator i
  17     = std::lower_bound(displaylist.begin(), displaylist.end(), layer);
  18   if(i == displaylist.end())
  19     displaylist.push_back(DrawingQueueEntry(drawable, layer));
  20   else
  21     displaylist.insert(i, DrawingQueueEntry(drawable, layer));
  22 }
  23
  24 void
  25 DisplayManager::remove_drawable(Drawable* drawable)
  26 {
  27   for(DisplayList::iterator i = displaylist.begin();
  28       i != displaylist.end(); ) {
  29     if(i->object == drawable)
  30       i = displaylist.erase(i);
  31     else
  32       ++i;
  33   }
  34 }
  35
  36 void
  37 DisplayManager::draw()
  38 {
  39   for(DisplayList::iterator i = displaylist.begin(); i != displaylist.end();
  40       ++i)
  41     i->object->draw(viewport, i->layer);
  42 }
  43