source/view.cpp

   1 #include "camera.h"
   2 #include "framebuffer.h"
   3 #include "renderable.h"
   4 #include "renderer.h"
   5 #include "view.h"
   6
   7 using namespace std;
   8
   9 namespace Msp {
  10 namespace GL {
  11
  12 View::View(Graphics::Window &w, Graphics::GLContext &c):
  13         window(w),
  14         context(c),
  15         target(Framebuffer::system()),
  16         content(0)
  17 {
  18         window.signal_resize.connect(sigc::mem_fun(this, &View::window_resized));
  19 }
  20
  21 void View::set_camera(Camera *c)
  22 {
  23         camera = c;
  24 }
  25
  26 void View::set_content(Renderable *r)
  27 {
  28         content = r;
  29 }
  30
  31 void View::synchronize_camera_aspect(Camera &c)
  32 {
  33         synced_cameras.push_back(&c);
  34         c.set_aspect(static_cast<float>(window.get_width())/window.get_height());
  35 }
  36
  37 void View::render()
  38 {
  39         target.clear(COLOR_BUFFER_BIT|DEPTH_BUFFER_BIT);
  40         if(content)
  41         {
  42                 Renderer renderer(camera);
  43                 content->setup_frame(renderer);
  44                 content->render(renderer);
  45                 content->finish_frame();
  46         }
  47         context.swap_buffers();
  48 }
  49
  50 void View::window_resized(unsigned w, unsigned h)
  51 {
  52         target.viewport(0, 0, w, h);
  53         float aspect = static_cast<float>(w)/h;
  54         if(camera)
  55                 camera->set_aspect(aspect);
  56         for(list<Camera *>::iterator i=synced_cameras.begin(); i!=synced_cameras.end(); ++i)
  57                 (*i)->set_aspect(aspect);
  58 }
  59
  60 } // namespace GL
  61 } // namespace Msp