File: main.cc

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//------------------------------------------------------------------------
//  MAIN Program
//------------------------------------------------------------------------
//
//  GL-Node Viewer (C) 2004-2007 Andrew Apted
//
//  This program is free software; you can redistribute it and/or
//  modify it under the terms of the GNU General Public License
//  as published by the Free Software Foundation; either version 2
//  of the License, or (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//------------------------------------------------------------------------

// this includes everything we need
#include "defs.h"


#define GUI_PrintMsg  printf


static bool inited_FLTK = false;

static int main_result = 0;


static void ShowTitle(void)
{
  GUI_PrintMsg(
    "\n"
    "**** " PROG_NAME "  (C) 2007 Andrew Apted ****\n\n"
  );
}

static void ShowInfo(void)
{
  GUI_PrintMsg(
    "Info...\n\n"
  );
}


void MainSetDefaults(void)
{
}

void InitFLTK(void)
{
  Fl::scheme(NULL);

  fl_message_font(FL_HELVETICA, 16);

  Fl_File_Icon::load_system_icons();

  inited_FLTK = true;
}

static void DisplayError(const char *str, ...)
{
  va_list args;

  if (inited_FLTK)
  {
    char buffer[1024];

    va_start(args, str);
    vsprintf(buffer, str, args);
    va_end(args);

    fl_alert("%s", buffer);
  }
  else
  {
    va_start(args, str);
    vfprintf(stderr, str, args);
    va_end(args);

    fprintf(stderr, "\n");
  }

  main_result = 9;
}

//------------------------------------------------------------------------
//  MAIN PROGRAM
//------------------------------------------------------------------------

int main(int argc, char **argv)
{
  try
  {
    // skip program name
    argv++, argc--;

    ArgvInit(argc, (const char **)argv);

    InitDebug(ArgvFind(0, "debug") >= 0);
    InitEndian();

    if (ArgvFind('?', NULL) >= 0 || ArgvFind('h', "help") >= 0)
    {
      ShowTitle();
      ShowInfo();
      exit(1);
    }

    InitFLTK();

    // set defaults, also initializes the nodebuildxxxx stuff
    MainSetDefaults();

    const char *filename = "data/doom2.wad";

    if (arg_count > 0 && ! ArgvIsOption(0))
      filename = arg_list[0];
    else
    {
      int params;
      int idx = ArgvFind(0, "file", &params);

      if (idx >= 0 && params >= 1)
        filename = arg_list[idx + 1];
    }

    if (CheckExtension(filename, "gwa"))
      FatalError("Main file must be a normal WAD (not GWA).\n");

    the_wad = wad_c::Load(filename);
    if (!the_wad)
      FatalError("Unable to read WAD file: %s\n", filename);

    const char *gwa_name = ReplaceExtension(filename, "gwa");

    if (FileExists(gwa_name))
    {
      the_gwa = wad_c::Load(gwa_name);
      if (!the_gwa)
        FatalError("Unable to read GWA file: %s\n", gwa_name);
    }

    const char *level_name = NULL;
    {
      int params;
      int idx = ArgvFind(0, "warp", &params);

      if (idx >= 0 && params >= 1)
        level_name = arg_list[idx + 1];

      if (! level_name)
      {
        level_name = the_wad->FirstLevelName();

        if (! level_name)
          FatalError("Unable to find ANY level in WAD.\n");
      }
    }

    path_c *path = NULL;
    {
      int params;
      int idx = ArgvFind(0, "path", &params);

      if (idx >= 0 && params >= 1)
        path = path_c::ReadFile(arg_list[idx + 1]);
    }

    LoadLevel(level_name);

    guix_win = new Guix_MainWin(PROG_NAME);

    if (path)
      guix_win->grid->SetPath(path);

    double lx, ly, hx, hy;
    LevelGetBounds(&lx, &ly, &hx, &hy);
    guix_win->grid->FitBBox(lx, ly, hx, hy);

    guix_win->info->SetMap(level_name);
    guix_win->info->SetNodes("GL");  // FIXME: node version

    guix_win->info->SetNodeIndex(lev_nodes.num - 1);

    // run the GUI until the user quits
    while (! guix_win->want_quit)
      Fl::wait();
  }
  catch (const char * err)
  {
    DisplayError("%s", err);
  }
  catch (assert_fail_c err)
  {
    DisplayError("Sorry, an internal error occurred:\n%s", err.GetMessage());
  }
  catch (...)
  {
    DisplayError("An unknown problem occurred (UI code)");
  }

  delete guix_win;
  delete the_wad;
  delete the_gwa;

  TermDebug();

  return main_result;
}