/* This is the main body of the program.  It is just a simple skeleton
 * and should be fleshed out as desired.  Mainly what you'll do to flesh 
 * it out is to edit the data structure defined in main.h so that it contains 
 * the information your program needs.  Then modify init_display() to create
 * the interface you want, and then just write the associated callback 
 * routines that are driven by the user's interaction with display.
 *
 * Easy, huh? (sorta)
 *
 *               --  This code is under the GNU copyleft  --
 *
 *   Dominic Giampaolo
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>

#include "libsx.h"             /* gets us in the door with libsx          */
#include "main.h"              /* where program specific stuff is defined */
#include "callbacks.h"         /* prototypes for callback functions       */


/* define's */
#define X_SIZE 300     /* default window size, change as desired */
#define Y_SIZE 300


char *string_table[] =
{
  "Kyuss", "KMFDM", "Monster Magnet", "Obituary", "L7", "NIN", "Prong",
  "Sepultura", "Metallica", "Black Sabbath", "Diamond Head", "Budgie",
  "Dio", "Ozzy Osbourne", "Flotsam and Jetsam", "George Micheal", "Slayer",
  "Candlemass", "Van Halen", "W.A.S.P.", "Anthrax", "Soundgarden",
  "Iron Maiden", "The Cult", "Danzig", "Queensryche", "Motorhead",
  "AC/DC", "Led Zepplin", "Misfits", "Jimi Hendrix", "Nudeswirl",
  "Nirvana", "Vivaldi", "Holst", "Ravel", "B-52's", "Ice Cube", "Yes",
  "The Police", "The Cure", "Minor Threat", "Cro-Mags", "Agnostic Front",
  "Ministry", "Ice-T", "N.W.A", "Run-DMC", "Deep Purple", "Agent Orange",
  NULL
};




void main(int argc, char **argv)
{
  MyProgram mydata;

  memset(&mydata, '\0', sizeof(MyProgram));  /* clear this out! */

  argc = init_display(argc, argv, &mydata);  /* setup the display */
  if (argc == 0)
    exit(0);


  MainLoop();        /* go right into the main loop, exits after quit() */
}



/*
 * This function sets up the display for us.
 */

int init_display(int argc, char **argv, MyProgram *me)
{
  Widget w[25];

  argc = OpenDisplay(argc, argv);
  if (argc == FALSE)
    return argc;


  w[0]  = MakeMenu("File");
  w[1]  = MakeMenuItem(w[0], "Load...",  load, me);
  w[2]  = MakeMenuItem(w[0], "Save...",  save, me);
  w[3]  = MakeMenuItem(w[0], "Quit",     quit, me);
 
  w[4]  = MakeMenu("Edit");
  w[5]  = MakeMenuItem(w[4], "Check me", check_me, me);
  w[6]  = MakeMenuItem(w[4], "Copy",  NULL, NULL);
  w[7]  = MakeMenuItem(w[4], "Paste", NULL, NULL);
  
  w[8]  = MakeButton("Color Stuff", do_stuff,   me); 
  w[9]  = MakeButton("More Stuff",  more_stuff, me);
  w[10] = MakeButton("Quit!",       quit,       me);

  w[11] = MakeDrawArea(X_SIZE, Y_SIZE, redisplay, me);
  w[12] = MakeScrollList(string_table, 125, 275, list_callback, NULL);
  
  w[13] = MakeHorizScrollbar(X_SIZE, scroll_func, me);
  w[14] = MakeHorizScrollbar(X_SIZE, scroll_func, me);
  w[15] = MakeVertScrollbar(Y_SIZE, scroll_func, me);

  w[16] = MakeToggle("Slow",    TRUE,  NULL,  toggle1, me);
  w[17] = MakeToggle("Fast",    FALSE, w[16], toggle2, me);
  w[18] = MakeToggle("Faster",  FALSE, w[16], toggle3, me);
  w[19] = MakeToggle("Fastest", FALSE, w[16], toggle4, me);

  w[20] = MakeToggle("Toggle me", FALSE, NULL, other_toggle, me);

  w[21] = MakeStringEntry("button.c", 435, string_func, me);
  w[22] = MakeTextWidget("button.c", EDIT_FILE, CAN_MODIFY, 435, 200);
  w[23] = MakeLabel("   A Sample Libsx Demo Program (cool huh?)");


  SetWidgetPos(w[4],  PLACE_RIGHT, w[0], NO_CARE, NULL);

  SetWidgetPos(w[8],  PLACE_UNDER, w[0], NO_CARE,     NULL);
  SetWidgetPos(w[9],  PLACE_UNDER, w[0], PLACE_RIGHT, w[8]);
  SetWidgetPos(w[10], PLACE_UNDER, w[0], PLACE_RIGHT, w[9]);

  SetWidgetPos(w[11], PLACE_UNDER, w[8], NO_CARE, NULL); 

  SetWidgetPos(w[13], PLACE_UNDER, w[11], NO_CARE, NULL);
  SetWidgetPos(w[14], PLACE_UNDER, w[13], NO_CARE, NULL);
  SetWidgetPos(w[15], PLACE_RIGHT, w[11], PLACE_UNDER, w[8]);

  SetWidgetPos(w[12], PLACE_RIGHT, w[15], PLACE_UNDER, w[8]);

  SetWidgetPos(w[16], PLACE_RIGHT, w[13], PLACE_UNDER, w[15]);
  SetWidgetPos(w[17], PLACE_RIGHT, w[16], PLACE_UNDER, w[15]);
  SetWidgetPos(w[18], PLACE_RIGHT, w[13], PLACE_UNDER, w[16]);
  SetWidgetPos(w[19], PLACE_RIGHT, w[18], PLACE_UNDER, w[16]);

  SetWidgetPos(w[20], PLACE_RIGHT, w[10], PLACE_UNDER, w[0]);
  SetWidgetPos(w[21], PLACE_UNDER, w[18], NO_CARE, NULL);
  SetWidgetPos(w[22], PLACE_UNDER, w[21], NO_CARE, NULL);
  SetWidgetPos(w[23], PLACE_RIGHT, w[4],  NO_CARE, NULL);


  /*
   * initialize the state of the toggle variables.
   */
  me->toggle1 = TRUE;
  me->toggle2 = me->toggle3 = me->toggle4 = me->other_toggle = FALSE;

  me->list         = w[12];   /* save these widget values for later */
  me->str_entry    = w[21];
  me->text_widget  = w[22];
  me->draw_widget  = w[11];
  me->quit         = w[10];
  me->color_widget = w[8];
  me->copy_menu    = w[6];
  me->paste_menu   = w[7];

  me->draw_font = GetFont("10x20");
  if (me->draw_font == NULL)
    me->draw_font = GetFont("fixed");

  SetWidgetFont(me->draw_widget, me->draw_font);
  SetTextEditable(me->text_widget, FALSE);

  SetButtonDownCB(w[11], button_down);
  SetButtonUpCB(w[11],   button_up);
  SetKeypressCB(w[11],   keypress);
  SetEnterCB(w[11],	 enter);
  SetLeaveCB(w[11],	 leave);

  SetScrollbar(w[13],   3.0,  14.0, 14.0);
  SetScrollbar(w[14], 250.0, 255.0,  1.0);
  SetScrollbar(w[15],  30.0, 100.0, 25.0);

  /*
   * Now actually put the display on the screen.
   */
  ShowDisplay();

  TurnOnBackingStore(w[11]);

  /*
   * Get some colors for drawing with.
   */
  GetStandardColors();

  me->col1 = GetNamedColor("peachpuff2");
  if (me->col1 == -1)
    fprintf(stderr, "Error getting color peachpuff\n");

  me->col2 = GetRGBColor(255, 0, 255);
  if (me->col2 == -1)
    fprintf(stderr, "Error getting RGB color 0 255 255\n");

  return argc;
}


void do_colorstuff(void);


/* Here is where all redrawing will take place for your program. 
 * When the window needs to be redrawn, this function will be called.
 * When your program starts up for the first time, this function will 
 * be called and you should draw anything you need to draw in here.
 */
void do_redisplay(MyProgram *me, int width, int height) 
{
  int i;
  char *str = "My Cool Program";

  if (me->in_color_mode)
   {
     do_colorstuff();
     return;
   }

  SetBgColor(me->draw_widget, WHITE);
  ClearDrawArea();       /* start with a clean slate */

  SetColor(BLACK);
  SetBgColor(me->draw_widget, GREEN);
  DrawText(str, (width-TextWidth(me->draw_font, str))/2, height/2); 

  SetBgColor(me->draw_widget, WHITE);
  SetColor(me->col1);
  for(i=0; i < width; i+=5)
     DrawLine(0,i, i,height);

  SetColor(me->col2);
  for(i=0; i < width; i+=5)
     DrawLine(width,i, width-i,height);
}



void do_colorstuff(void)
{
  int i;

  for(i=0; i < 256; i++)
    {
      SetColor(i);
      DrawLine(i,0, i,255);
    }
}