12 inline void OverlayBMP(Document & doc, const char * input, const char * output, const Rect & bounds = Rect(0,0,1,1), const Colour & c = Colour(0.f,0.f,0.f,1.f))
14 View view(doc, bounds, c);
20 scr.ScreenShot(output);
23 inline void MainLoop(Document & doc, const Rect & bounds = Rect(0,0,1,1), const Colour & c = Colour(0.f,0.f,0.f,1.f))
25 View view(doc,bounds, c);
27 scr.SetMouseHandler([&](int x, int y, int buttons, int wheel) // [?] wtf
29 static bool oldButtonDown = false;
30 static int oldx, oldy;
31 if (buttons && !oldButtonDown)
33 // We're beginning a drag.
37 scr.SetMouseCursor(Screen::CursorMove);
41 view.Translate(Real(oldx-x)/Real(scr.ViewportWidth()), Real(oldy-y)/Real(scr.ViewportHeight()));
45 oldButtonDown = false;
46 scr.SetMouseCursor(Screen::CursorArrow);
53 view.ScaleAroundPoint(Real(x)/Real(scr.ViewportWidth()),Real(y)/Real(scr.ViewportHeight()), expf(-wheel/20.f));
58 while (scr.PumpEvents())