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         // order is important... segfaults occur when screen (which inits GL) is not constructed first -_-
  27         Screen scr;
  28         View view(doc,bounds, c);
  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 > 1 && !oldButtonDown)
  35                 {
  36                         oldButtonDown = true;
  37                         view.ToggleGPUTransform();
  38                         oldx = x;
  39                         oldy = y;
  40                         return;
  41                 }
  42                 if (buttons && !oldButtonDown)
  43                 {
  44                         // We're beginning a drag.
  45                         oldButtonDown = true;
  46                         oldx = x;
  47                         oldy = y;
  48                         scr.SetMouseCursor(Screen::CursorMove);
  49                 }
  50                 if (buttons)
  51                 {
  52                         view.Translate(Real(oldx-x)/Real(scr.ViewportWidth()), Real(oldy-y)/Real(scr.ViewportHeight()));
  53                 }
  54                 else
  55                 {
  56                         oldButtonDown = false;
  57                         scr.SetMouseCursor(Screen::CursorArrow);
  58                 }
  59                 oldx = x;
  60                 oldy = y;
  61
  62                 if (wheel)
  63                 {
  64                         view.ScaleAroundPoint(Real(x)/Real(scr.ViewportWidth()),Real(y)/Real(scr.ViewportHeight()), expf(-wheel/20.f));
  65                 }
  66         }
  67         );
  68
  69         while (scr.PumpEvents())
  70         {
  71                 scr.Clear();
  72                 view.Render(scr.ViewportWidth(), scr.ViewportHeight());
  73                 scr.DebugFontPrintF("[CPU] Render took %lf ms (%lf FPS)\n", (scr.GetLastFrameTimeCPU())* 1000.0, 1.0/scr.GetLastFrameTimeCPU());
  74                 scr.DebugFontPrintF("[GPU] Render took %lf ms (%lf FPS)\n", (scr.GetLastFrameTimeGPU())* 1000.0, 1.0/scr.GetLastFrameTimeGPU());
  75                 scr.DebugFontPrintF("View bounds: %s\n", view.GetBounds().Str().c_str());
  76                 if (view.UsingGPUTransform())
  77                 {
  78                         scr.DebugFontPrint("Doing coordinate transform on the GPU.\n");
  79                 }
  80                 else
  81                 {
  82                         scr.DebugFontPrint("Doing coordinate transform on the CPU.\n");
  83                 }
  84                 if (view.UsingGPURendering())
  85                 {
  86                         scr.DebugFontPrint("Doing rendering using GPU.\n");
  87                 }
  88                 else
  89                 {
  90                         scr.DebugFontPrint("Doing rendering using CPU.\n");
  91                 }
  92                 scr.Present();
  93         }
  94 }