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         camera(0),
  17         content(0)
  18 {
  19         window.signal_resize.connect(sigc::mem_fun(this, &View::window_resized));
  20 }
  21
  22 void View::set_camera(Camera *c)
  23 {
  24         camera = c;
  25 }
  26
  27 void View::set_content(Renderable *r)
  28 {
  29         content = r;
  30 }
  31
  32 void View::synchronize_camera_aspect(Camera &c)
  33 {
  34         synced_cameras.push_back(&c);
  35         c.set_aspect(static_cast<float>(window.get_width())/window.get_height());
  36 }
  37
  38 void View::render()
  39 {
  40         target.clear(COLOR_BUFFER_BIT|DEPTH_BUFFER_BIT);
  41         if(content)
  42         {
  43                 Renderer renderer(camera);
  44                 content->setup_frame(renderer);
  45                 content->render(renderer);
  46                 content->finish_frame();
  47         }
  48         context.swap_buffers();
  49 }
  50
  51 void View::window_resized(unsigned w, unsigned h)
  52 {
  53         target.viewport(0, 0, w, h);
  54         float aspect = static_cast<float>(w)/h;
  55         if(camera)
  56                 camera->set_aspect(aspect);
  57         for(list<Camera *>::iterator i=synced_cameras.begin(); i!=synced_cameras.end(); ++i)
  58                 (*i)->set_aspect(aspect);
  59 }
  60
  61 } // namespace GL
  62 } // namespace Msp