src/main.h

   1 #include "common.h"
   2
   3 #include "document.h"
   4 #include "view.h"
   5 #include "screen.h"
   6 #include <unistd.h>
   7
   8
   9 using namespace std;
  10 using namespace IPDF;
  11
  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))
  13 {
  14         View view(doc, bounds, c);
  15         Screen scr;
  16         scr.RenderBMP(input);
  17         view.Render();
  18         scr.Present();
  19         sleep(5);
  20         scr.ScreenShot(output);
  21 }
  22
  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))
  24 {
  25         View view(doc,bounds, c);
  26         Screen scr;
  27         scr.SetMouseHandler([&](int x, int y, int buttons, int wheel) // [?] wtf
  28         {
  29                 static bool oldButtonDown = false;
  30                 static int oldx, oldy;
  31                 if (buttons && !oldButtonDown)
  32                 {
  33                         // We're beginning a drag.
  34                         oldButtonDown = true;
  35                         oldx = x;
  36                         oldy = y;
  37                         scr.SetMouseCursor(Screen::CursorMove);
  38                 }
  39                 if (buttons)
  40                 {
  41                         view.Translate(Real(oldx-x)/Real(scr.ViewportWidth()), Real(oldy-y)/Real(scr.ViewportHeight()));
  42                 }
  43                 else
  44                 {
  45                         oldButtonDown = false;
  46                         scr.SetMouseCursor(Screen::CursorArrow);
  47                 }
  48                 oldx = x;
  49                 oldy = y;
  50
  51                 if (wheel)
  52                 {
  53                         view.ScaleAroundPoint(Real(x)/Real(scr.ViewportWidth()),Real(y)/Real(scr.ViewportHeight()), expf(-wheel/20.f));
  54                 }
  55         }
  56         );
  57
  58         while (scr.PumpEvents())
  59         {
  60                 scr.Clear();
  61                 view.Render();
  62                 scr.Present();
  63         }
  64 }