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         sleep(1);
  19         scr.ScreenShot(output);
  20         scr.Present();
  21
  22         sleep(1);
  23 }
  24
  25 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))
  26 {
  27         View view(doc,bounds, c);
  28         Screen scr;
  29         scr.SetMouseHandler([&](int x, int y, int buttons, int wheel) // [?] wtf
  30         {
  31                 static bool oldButtonDown = false;
  32                 static int oldx, oldy;
  33                 if (buttons && !oldButtonDown)
  34                 {
  35                         // We're beginning a drag.
  36                         oldButtonDown = true;
  37                         oldx = x;
  38                         oldy = y;
  39                         scr.SetMouseCursor(Screen::CursorMove);
  40                 }
  41                 if (buttons)
  42                 {
  43                         view.Translate(Real(oldx-x)/Real(scr.ViewportWidth()), Real(oldy-y)/Real(scr.ViewportHeight()));
  44                 }
  45                 else
  46                 {
  47                         oldButtonDown = false;
  48                         scr.SetMouseCursor(Screen::CursorArrow);
  49                 }
  50                 oldx = x;
  51                 oldy = y;
  52
  53                 if (wheel)
  54                 {
  55                         view.ScaleAroundPoint(Real(x)/Real(scr.ViewportWidth()),Real(y)/Real(scr.ViewportHeight()), expf(-wheel/20.f));
  56                 }
  57         }
  58         );
  59
  60         while (scr.PumpEvents())
  61         {
  62                 scr.Clear();
  63                 view.Render();
  64                 scr.Present();
  65         }
  66 }