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         window_resized(window.get_width(), window.get_height());
  21 }
  22
  23 void View::set_camera(Camera *c)
  24 {
  25         camera = c;
  26         if(camera)
  27                 camera->set_aspect(static_cast<float>(window.get_width())/window.get_height());
  28 }
  29
  30 void View::set_content(Renderable *r)
  31 {
  32         content = r;
  33 }
  34
  35 void View::synchronize_camera_aspect(Camera &c)
  36 {
  37         synced_cameras.push_back(&c);
  38         c.set_aspect(static_cast<float>(window.get_width())/window.get_height());
  39 }
  40
  41 void View::render()
  42 {
  43         target.clear(COLOR_BUFFER_BIT|DEPTH_BUFFER_BIT);
  44         if(content)
  45         {
  46                 Renderer renderer(camera);
  47                 content->setup_frame(renderer);
  48                 content->render(renderer);
  49                 content->finish_frame();
  50         }
  51         context.swap_buffers();
  52 }
  53
  54 void View::window_resized(unsigned w, unsigned h)
  55 {
  56         target.viewport(0, 0, w, h);
  57         float aspect = static_cast<float>(w)/h;
  58         if(camera)
  59                 camera->set_aspect(aspect);
  60         for(list<Camera *>::iterator i=synced_cameras.begin(); i!=synced_cameras.end(); ++i)
  61                 (*i)->set_aspect(aspect);
  62 }
  63
  64 } // namespace GL
  65 } // namespace Msp