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