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         if (input != NULL)
  17                 scr.RenderBMP(input);
  18         view.Render();
  19         if (output != NULL)
  20                 scr.ScreenShot(output);
  21         scr.Present();
  22 }
  23
  24 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 {
  26         View view(doc,bounds, c);
  27         Screen scr;
  28         scr.DebugFontInit("DejaVuSansMono.ttf");
  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 > 1 && !oldButtonDown)
  34                 {
  35                         oldButtonDown = true;
  36                         view.ToggleGPUTransform();
  37                         oldx = x;
  38                         oldy = y;
  39                         return;
  40                 }
  41                 if (buttons && !oldButtonDown)
  42                 {
  43                         // We're beginning a drag.
  44                         oldButtonDown = true;
  45                         oldx = x;
  46                         oldy = y;
  47                         scr.SetMouseCursor(Screen::CursorMove);
  48                 }
  49                 if (buttons)
  50                 {
  51                         view.Translate(Real(oldx-x)/Real(scr.ViewportWidth()), Real(oldy-y)/Real(scr.ViewportHeight()));
  52                 }
  53                 else
  54                 {
  55                         oldButtonDown = false;
  56                         scr.SetMouseCursor(Screen::CursorArrow);
  57                 }
  58                 oldx = x;
  59                 oldy = y;
  60
  61                 if (wheel)
  62                 {
  63                         view.ScaleAroundPoint(Real(x)/Real(scr.ViewportWidth()),Real(y)/Real(scr.ViewportHeight()), expf(-wheel/20.f));
  64                 }
  65         }
  66         );
  67
  68         while (scr.PumpEvents())
  69         {
  70                 scr.Clear();
  71                 view.Render(scr.ViewportWidth(), scr.ViewportHeight());
  72                 scr.DebugFontPrintF("[CPU] Render took %lf ms (%lf FPS)\n", (scr.GetLastFrameTimeCPU())* 1000.0, 1.0/scr.GetLastFrameTimeCPU());
  73                 scr.DebugFontPrintF("[GPU] Render took %lf ms (%lf FPS)\n", (scr.GetLastFrameTimeGPU())* 1000.0, 1.0/scr.GetLastFrameTimeGPU());
  74                 scr.DebugFontPrintF("View bounds: %s\n", view.GetBounds().Str().c_str());
  75                 if (view.UsingGPUTransform())
  76                 {
  77                         scr.DebugFontPrint("Doing coordinate transform on the GPU.\n");
  78                 }
  79                 else
  80                 {
  81                         scr.DebugFontPrint("Doing coordinate transform on the CPU.\n");
  82                 }
  83                 scr.Present();
  84         }
  85 }