//
// "$Id: fluid.cxx,v 1.15.2.13.2.12 2002/03/25 21:08:41 easysw Exp $"
//
// FLUID main entry for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2002 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
//

#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_File_Icon.H>
#include <FL/Fl_Help_Dialog.H>
#include <FL/Fl_Hold_Browser.H>
#include <FL/Fl_Menu_Bar.H>
#include <FL/Fl_Input.H>
#include <FL/fl_ask.H>
#include <FL/fl_draw.H>
#include <FL/Fl_File_Chooser.H>
#include <FL/fl_message.H>
#include <FL/filename.H>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <config.h>

#if !HAVE_SNPRINTF
extern "C" {
extern int snprintf(char* str, size_t size, const char* fmt, ...);
}
#endif // !HAVE_SNPRINTF

#if defined(WIN32) && !defined(__CYGWIN__)
#  include <direct.h>
#  include <windows.h>
#else
#  include <unistd.h>
#endif
#ifdef __EMX__
#  include <X11/Xlibint.h>
#endif

#include "about_panel.h"

#include "Fl_Type.h"

static Fl_Help_Dialog *help_dialog = 0;


////////////////////////////////////////////////////////////////

void nyi(Fl_Widget *,void *) {
    fl_message("That's not yet implemented, sorry");
}

static const char *filename;
void set_filename(const char *c);
int modflag;

static char* pwd;
static char in_source_dir;
void goto_source_dir() {
  if (in_source_dir) return;
  if (!filename || !*filename) return;
  const char *p = fl_filename_name(filename);
  if (p <= filename) return; // it is in the current directory
  char buffer[1024];
  strcpy(buffer,filename);
  int n = p-filename; if (n>1) n--; buffer[n] = 0;
  if (!pwd) {
    pwd = getcwd(0,1024);
    if (!pwd) {fprintf(stderr,"getwd : %s\n",strerror(errno)); return;}
  }
  if (chdir(buffer)<0) {fprintf(stderr, "Can't chdir to %s : %s\n",
				buffer, strerror(errno)); return;}
  in_source_dir = 1;
}

void leave_source_dir() {
  if (!in_source_dir) return;
  if (chdir(pwd)<0) {fprintf(stderr, "Can't chdir to %s : %s\n",
			     pwd, strerror(errno));}
  in_source_dir = 0;
}
  
Fl_Window *main_window;

void save_cb(Fl_Widget *, void *v) {
  const char *c = filename;
  if (v || !c || !*c) {
    if (!(c=fl_file_chooser("Save to:", "*.f[ld]", c))) return;
    set_filename(c);
  }
  if (!write_file(c)) {
    fl_message("Error writing %s: %s", c, strerror(errno));
    return;
  }
  modflag = 0;
}

void exit_cb(Fl_Widget *,void *) {
  if (modflag)
    switch (fl_choice("Save changes before exiting?", "Cancel", "No", "Yes"))
    {
      case 0 : /* Cancel */
          return;
      case 2 : /* Yes */
          save_cb(NULL, NULL);
	  if (modflag) return;	// Didn't save!
    }

  if (about_panel)
    delete about_panel;
  if (help_dialog)
    delete help_dialog;

  exit(0);
}

void open_cb(Fl_Widget *, void *v) {
  if (!v && modflag && !fl_ask("Discard changes?")) return;
  const char *c;
  if (!(c = fl_file_chooser("Open:", "*.f[ld]", filename))) return;
  if (!read_file(c, v!=0)) {
    fl_message("Can't read %s: %s", c, strerror(errno));
    return;
  }
  if (!v) {set_filename(c); modflag = 0;}
  else modflag = 1;
}

void new_cb(Fl_Widget *, void *v) {
  if (!v && modflag && !fl_ask("Discard changes?")) return;
  const char *c;
  if (!(c = fl_file_chooser("New:", "*.f[ld]", 0))) return;
  delete_all();
  set_filename(c);
  modflag = 0;
}

int compile_only = 0;
int compile_strings = 0;
int header_file_set = 0;
int code_file_set = 0;
const char* header_file_name = ".h";
const char* code_file_name = ".cxx";
int i18n_type = 0;
const char* i18n_include = "";
const char* i18n_function = "";
const char* i18n_file = "";
const char* i18n_set = "";
char i18n_program[1024] = "";

void write_cb(Fl_Widget *, void *) {
  if (!filename) {
    save_cb(0,0);
    if (!filename) return;
  }
  char cname[1024];
  char hname[1024];
  strcpy(i18n_program, fl_filename_name(filename));
  fl_filename_setext(i18n_program, "");
  if (*code_file_name == '.' && strchr(code_file_name, '/') == NULL) {
    strcpy(cname,fl_filename_name(filename));
    fl_filename_setext(cname, code_file_name);
  } else {
    strcpy(cname, code_file_name);
  }
  if (*header_file_name == '.' && strchr(header_file_name, '/') == NULL) {
    strcpy(hname,fl_filename_name(filename));
    fl_filename_setext(hname, header_file_name);
  } else {
    strcpy(hname, header_file_name);
  }
  if (!compile_only) goto_source_dir();
  int x = write_code(cname,hname);
  if (!compile_only) leave_source_dir();
  strcat(cname, " and "); strcat(cname,hname);
  if (compile_only) {
    if (!x) {fprintf(stderr,"%s : %s\n",cname,strerror(errno)); exit(1);}
  } else {
    if (!x) {
      fl_message("Can't write %s: %s", cname, strerror(errno));
    } else {
      fl_message("Wrote %s", cname, 0);
    }
  }
}

void write_strings_cb(Fl_Widget *, void *) {
  static const char *exts[] = { ".txt", ".po", ".msg" };
  if (!filename) {
    save_cb(0,0);
    if (!filename) return;
  }
  char sname[1024];
  strcpy(sname,fl_filename_name(filename));
  fl_filename_setext(sname, exts[i18n_type]);
  if (!compile_only) goto_source_dir();
  int x = write_strings(sname);
  if (!compile_only) leave_source_dir();
  if (compile_only) {
    if (x) {fprintf(stderr,"%s : %s\n",sname,strerror(errno)); exit(1);}
  } else {
    if (x) {
      fl_message("Can't write %s: %s", sname, strerror(errno));
    } else {
      fl_message("Wrote %s", sname);
    }
  }
}

void openwidget_cb(Fl_Widget *, void *) {
  if (!Fl_Type::current) {
    fl_message("Please select a widget");
    return;
  }
  Fl_Type::current->open();
}

void toggle_overlays(Fl_Widget *,void *);

void select_all_cb(Fl_Widget *,void *);

void group_cb(Fl_Widget *, void *);

void ungroup_cb(Fl_Widget *, void *);

extern int pasteoffset;
static int ipasteoffset;

static char* cutfname() {
#if defined WIN32 && ! defined(__CYGWIN__)
#  ifndef MAX_PATH
#    define MAX_PATH 256
#  endif // !MAX_PATH

  static char name[MAX_PATH+16] = "";

  if (!name[0]) {
    if (!GetTempPath(sizeof(name), name)) strcpy(name,"\\"); // failure

    strcat(name, ".fluidcutbuffer");
  }

  return name;
#else
  static char name[256] = "~/.fluid_cut_buffer";
  static char beenhere;
  if (!beenhere) {beenhere = 1; fl_filename_expand(name,name);}
  return name;
#endif
}

void copy_cb(Fl_Widget*, void*) {
  if (!Fl_Type::current) return;
  ipasteoffset = 10;
  if (!write_file(cutfname(),1)) {
    fl_message("Can't write %s: %s", cutfname(), strerror(errno));
    return;
  }
}

extern void select_only(Fl_Type *);
void cut_cb(Fl_Widget *, void *) {
  if (!Fl_Type::current) return;
  ipasteoffset = 0;
  Fl_Type *p = Fl_Type::current->parent;
  while (p && p->selected) p = p->parent;
  if (!write_file(cutfname(),1)) {
    fl_message("Can't write %s: %s", cutfname(), strerror(errno));
    return;
  }
  delete_all(1);
  if (p) select_only(p);
}

extern int force_parent, gridx, gridy;

void paste_cb(Fl_Widget*, void*) {
  if (ipasteoffset) force_parent = 1;
  pasteoffset = ipasteoffset;
  if (gridx>1) pasteoffset = ((pasteoffset-1)/gridx+1)*gridx;
  if (gridy>1) pasteoffset = ((pasteoffset-1)/gridy+1)*gridy;
  if (!read_file(cutfname(), 1)) {
    fl_message("Can't read %s: %s", cutfname(), strerror(errno));
  }
  pasteoffset = 0;
  ipasteoffset += 10;
  force_parent = 0;
}

void earlier_cb(Fl_Widget*,void*);

void later_cb(Fl_Widget*,void*);

Fl_Type *sort(Fl_Type *parent);

static void sort_cb(Fl_Widget *,void *) {
  sort((Fl_Type*)0);
}

void show_alignment_cb(Fl_Widget *, void *);

void about_cb(Fl_Widget *, void *) {
  if (!about_panel) make_about_panel();
  display_group->show();
  about_panel->show();
}

void show_help(const char *name) {
  const char	*docdir;
  char		filename[1024];
  
  if (!help_dialog) help_dialog = new Fl_Help_Dialog();

  if ((docdir = getenv("FLTK_DOCDIR")) == NULL) {
#ifdef __EMX__
    // Doesn't make sense to have a hardcoded fallback
    static char fltk_docdir[1024];

    strcpy(fltk_docdir, __XOS2RedirRoot("/XFree86/lib/X11/fltk/doc"));

    docdir = fltk_docdir;
#else
    docdir = FLTK_DOCDIR;
#endif // __EMX__
  }
  snprintf(filename, sizeof(filename), "%s/%s", docdir, name);  

  help_dialog->load(filename);
  help_dialog->show();
}

void help_cb(Fl_Widget *, void *) {
  show_help("fluid.html");
}

void manual_cb(Fl_Widget *, void *) {
  show_help("index.html");
}

////////////////////////////////////////////////////////////////

extern Fl_Menu_Item New_Menu[];

Fl_Menu_Item Main_Menu[] = {
{"&File",0,0,0,FL_SUBMENU},
  {"New", 0, new_cb, 0},
  {"Open...", FL_CTRL+'o', open_cb, 0},
  {"Save", FL_CTRL+'s', save_cb, 0},
  {"Save As...", FL_CTRL+FL_SHIFT+'s', save_cb, (void*)1},
  {"Merge...", FL_CTRL+'i', open_cb, (void*)1, FL_MENU_DIVIDER},
  {"Write code", FL_CTRL+FL_SHIFT+'c', write_cb, 0},
  {"Write strings", FL_CTRL+FL_SHIFT+'w', write_strings_cb, 0},
  {"Quit", FL_CTRL+'q', exit_cb},
  {0},
{"&Edit",0,0,0,FL_SUBMENU},
  {"Undo", FL_CTRL+'z', nyi},
  {"Cut", FL_CTRL+'x', cut_cb},
  {"Copy", FL_CTRL+'c', copy_cb},
  {"Paste", FL_CTRL+'v', paste_cb},
  {"Select All", FL_CTRL+'a', select_all_cb, 0, FL_MENU_DIVIDER},
  {"Open...", FL_F+1, openwidget_cb},
  {"Sort",0,sort_cb},
  {"Earlier", FL_F+2, earlier_cb},
  {"Later", FL_F+3, later_cb},
//{"Show", FL_F+5, show_cb},
//{"Hide", FL_F+6, hide_cb},
  {"Group", FL_F+7, group_cb},
  {"Ungroup", FL_F+8, ungroup_cb,0, FL_MENU_DIVIDER},
//{"Deactivate", 0, nyi},
//{"Activate", 0, nyi, 0, FL_MENU_DIVIDER},
  {"Overlays on/off",FL_CTRL+FL_SHIFT+'o',toggle_overlays},
  {"Preferences",FL_CTRL+'p',show_alignment_cb},
  {0},
{"&New", 0, 0, (void *)New_Menu, FL_SUBMENU_POINTER},
{"&Help",0,0,0,FL_SUBMENU},
  {"About FLUID...",0,about_cb},
  {"On FLUID...",0,help_cb},
  {"Manual...",0,manual_cb},
  {0},
{0}};

#define BROWSERWIDTH 300
#define BROWSERHEIGHT 500
#define WINWIDTH 300
#define MENUHEIGHT 30
#define WINHEIGHT (BROWSERHEIGHT+MENUHEIGHT)

extern void fill_in_New_Menu();

void make_main_window() {
  if (!main_window) {
    Fl_Widget *o;
    main_window = new Fl_Double_Window(WINWIDTH,WINHEIGHT,"fluid");
    main_window->box(FL_NO_BOX);
    o = make_widget_browser(0,MENUHEIGHT,BROWSERWIDTH,BROWSERHEIGHT);
    o->box(FL_FLAT_BOX);
    o->tooltip("Double-click to view or change an item.");
    main_window->resizable(o);
    Fl_Menu_Bar *m = new Fl_Menu_Bar(0,0,BROWSERWIDTH,MENUHEIGHT);
    m->menu(Main_Menu);
    m->global();
    fill_in_New_Menu();
    main_window->end();
  }
}

void set_filename(const char *c) {
  if (filename) free((void *)filename);
  filename = strdup(c);
  if (main_window) main_window->label(filename);
}

////////////////////////////////////////////////////////////////

static int arg(int argc, char** argv, int& i) {
  if (argv[i][1] == 'c' && !argv[i][2]) {compile_only = 1; i++; return 1;}
  if (argv[i][1] == 'c' && argv[i][2] == 's' && !argv[i][3]) {compile_only = 1; compile_strings = 1; i++; return 1;}
  if (argv[i][1] == 'o' && !argv[i][2] && i+1 < argc) {
    code_file_name = argv[i+1];
    code_file_set  = 1;
    i += 2;
    return 2;
  }
  if (argv[i][1] == 'h' && !argv[i][2]) {
    header_file_name = argv[i+1];
    header_file_set  = 1;
    i += 2;
    return 2;
  }
  return 0;
}

#if ! (defined(WIN32) && !defined (__CYGWIN__))

#include <signal.h>
#ifdef _sigargs
#define SIGARG _sigargs
#else
#ifdef __sigargs
#define SIGARG __sigargs
#else
#define SIGARG int // you may need to fix this for older systems
#endif
#endif

extern "C" {
static void sigint(SIGARG) {
  signal(SIGINT,sigint);
  exit_cb(0,0);
}
}
#endif

int main(int argc,char **argv) {
  int i = 1;
  if (!Fl::args(argc,argv,i,arg) || i < argc-1) {
    fprintf(stderr,"usage: %s <switches> name.fl\n"
" -c : write .cxx and .h and exit\n"
" -cs : write .cxx and .h and strings and exit\n"
" -o <name> : .cxx output filename, or extension if <name> starts with '.'\n"
" -h <name> : .h output filename, or extension if <name> starts with '.'\n"
"%s\n", argv[0], Fl::help);
    return 1;
  }
  const char *c = argv[i];
  make_main_window();
  if (c) set_filename(c);
  if (!compile_only) {
    Fl::visual((Fl_Mode)(FL_DOUBLE|FL_INDEX));
    Fl_File_Icon::load_system_icons();
    main_window->callback(exit_cb);
    main_window->show(argc,argv);
  }
  if (c && !read_file(c,0)) {
    if (compile_only) {
      fprintf(stderr,"%s : %s\n", c, strerror(errno));
      exit(1);
    }
    fl_message("Can't read %s: %s", c, strerror(errno));
  }
      if (compile_only && compile_strings) { write_strings_cb(0,0); }
  if (compile_only) {write_cb(0,0); exit(0);}
  modflag = 0;
#ifndef WIN32
  signal(SIGINT,sigint);
#endif
  return Fl::run();
}

//
// End of "$Id: fluid.cxx,v 1.15.2.13.2.12 2002/03/25 21:08:41 easysw Exp $".
//