source/view.cpp

   1 #include "camera.h"
   2 #include "framebuffer.h"
   3 #include "renderable.h"
   4 #include "view.h"
   5
   6 using namespace std;
   7
   8 namespace Msp {
   9 namespace GL {
  10
  11 View::View(Graphics::Window &w, Graphics::GLContext &c):
  12         window(w),
  13         context(c),
  14         target(Framebuffer::system()),
  15         content(0)
  16 {
  17         window.signal_resize.connect(sigc::mem_fun(this, &View::window_resized));
  18 }
  19
  20 void View::set_content(const Renderable *r)
  21 {
  22         content = r;
  23 }
  24
  25 void View::synchronize_camera_aspect(Camera &c)
  26 {
  27         synced_cameras.push_back(&c);
  28         c.set_aspect(static_cast<float>(window.get_width())/window.get_height());
  29 }
  30
  31 void View::render()
  32 {
  33         target.clear(COLOR_BUFFER_BIT|DEPTH_BUFFER_BIT);
  34         if(content)
  35                 content->render();
  36         context.swap_buffers();
  37 }
  38
  39 void View::window_resized(unsigned w, unsigned h)
  40 {
  41         target.viewport(0, 0, w, h);
  42         float aspect = static_cast<float>(w)/h;
  43         for(list<Camera *>::iterator i=synced_cameras.begin(); i!=synced_cameras.end(); ++i)
  44                 (*i)->set_aspect(aspect);
  45 }
  46
  47 } // namespace GL
  48 } // namespace Msp