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.RenderBMP(input);
  21         view.Render();
  22         scr.ScreenShot(output);
  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.DebugFontInit("DejaVuSansMono.ttf");
  30         scr.SetMouseHandler([&](int x, int y, int buttons, int wheel) // [?] wtf
  31         {
  32                 static bool oldButtonDown = false;
  33                 static int oldx, oldy;
  34                 if (buttons && !oldButtonDown)
  35                 {
  36                         // We're beginning a drag.
  37                         oldButtonDown = true;
  38                         oldx = x;
  39                         oldy = y;
  40                         scr.SetMouseCursor(Screen::CursorMove);
  41                 }
  42                 if (buttons)
  43                 {
  44                         view.Translate(Real(oldx-x)/Real(scr.ViewportWidth()), Real(oldy-y)/Real(scr.ViewportHeight()));
  45                 }
  46                 else
  47                 {
  48                         oldButtonDown = false;
  49                         scr.SetMouseCursor(Screen::CursorArrow);
  50                 }
  51                 oldx = x;
  52                 oldy = y;
  53
  54                 if (wheel)
  55                 {
  56                         view.ScaleAroundPoint(Real(x)/Real(scr.ViewportWidth()),Real(y)/Real(scr.ViewportHeight()), expf(-wheel/20.f));
  57                 }
  58         }
  59         );
  60
  61         double init_time = SDL_GetPerformanceCounter();
  62         while (scr.PumpEvents())
  63         {
  64                 scr.Clear();
  65                 view.Render();
  66                 scr.DebugFontPrintF("[CPU] Render took %lf ms (%lf FPS)\n", (SDL_GetPerformanceCounter() - init_time)* 1000.0/SDL_GetPerformanceFrequency(), SDL_GetPerformanceFrequency()/(SDL_GetPerformanceCounter() - init_time));
  67                 scr.DebugFontPrintF("View bounds: (%f, %f) - (%f, %f)\n", view.GetBounds().x, view.GetBounds().y, view.GetBounds().w, view.GetBounds().h);
  68                 scr.Present();
  69                 init_time = SDL_GetPerformanceCounter();
  70         }
  71 }