#include <gtk/gtk.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include "extra.c"
#include "find.c"
#include "findreplace.c"

GtkWidget *view; /* TextView */

/* used for selecting the text */
GdkAtom sel_atom = GDK_SELECTION_CLIPBOARD;/* identify the requests menu handler will manage. */
GtkItemFactory *main_menu; /* Item factory creates a menu from array of itemfactory entries */

/* prototype */

void show_help(void);
void show_about(void);

#define MENU_NEW 1
#define MENU_OPEN 2
#define MENU_SAVE 3
#define MENU_SAVE_AS 4
#define MENU_QUIT 5
#define MENU_CUT 6
#define MENU_COPY 7
#define MENU_PASTE 8
#define MENU_USE_CLIPBOARD 9
#define MENU_SELECT_ALL 10
#define MENU_FIND 11
#define MENU_REPLACE 12
#define MENU_HELP 14
#define MENU_ABOUT 15

static void menu_show(gpointer data, guint action, GtkWidget *widget)
{
    GtkTextIter p;

    switch(action)
      {
      case MENU_NEW:
		if(save_if_modified())  /* call save if modified wen user opens a new file */
		  {
			/* get all the current tag table n put them in the new buffer */
			buf = gtk_text_buffer_new(gtk_text_buffer_get_tag_table(buf));
			gtk_text_view_set_buffer(GTK_TEXT_VIEW(view), buf);
			g_object_unref(G_OBJECT(buf));
		        /* needed for freeing memory by the buffer wen a new buffer is created */
		  }
		break;
      case MENU_OPEN:
		if(save_if_modified())
		    {
		  /* call save if modified wen user opens a new file */
		  buf = gtk_text_buffer_new(gtk_text_buffer_get_tag_table(buf));
		  gtk_text_view_set_buffer(GTK_TEXT_VIEW(view), buf);

		    /* needed for freeing memory by the buffer wen a new buffer is created */
		  g_object_unref(G_OBJECT(buf));
		  load_file(NULL);
		}
		break;
      case MENU_SAVE:
		save_file(filename);
		break;
      case MENU_SAVE_AS:
		save_file(NULL);
		break;
      case MENU_QUIT:
		if(save_if_modified())            /* call save if modified wen user opens a new file */
		  gtk_widget_destroy(window);
		break;
      case MENU_CUT:
		gtk_text_buffer_cut_clipboard(buf,gtk_clipboard_get(sel_atom), TRUE);
		break;
      case MENU_COPY:
		gtk_text_buffer_copy_clipboard(buf,gtk_clipboard_get(sel_atom));
		break;
      case MENU_PASTE:
        /* if null text is inserted at the current cursor position */
		gtk_text_buffer_paste_clipboard(buf,gtk_clipboard_get(sel_atom), NULL, TRUE);
		break;
      case MENU_FIND:
		textfind();
		break;
      case MENU_REPLACE:
		text_find_replace();
		break;

      case MENU_SELECT_ALL:
		gtk_text_buffer_get_start_iter(buf, &p);  /* get the starting pt of the buffer */
		gtk_text_buffer_place_cursor(buf, &p);    /* ignore the selection made by the mouse */
		gtk_text_buffer_get_end_iter(buf, &p);   /* get the ending pt of the buffer */
		gtk_text_buffer_move_mark_by_name(buf, "selection_bound", &p);
		break;
      case MENU_HELP:
		how_help();
		break;
      case MENU_ABOUT:
        show_about();
        break;

      default:      /* error checking */
		g_printerr("Menu action not defined : %u\n", action);
		break;
      }
}

/* actual menu creation */

GtkItemFactoryEntry menu_def[] =
  {
    { (char *)"/_File", NULL, NULL, 0, (char *)"<Branch>", NULL },
    { (char *)"/File/_New", (char *)"<control>N", menu_show, MENU_NEW, (char *)"<StockItem>", GTK_STOCK_NEW },
    { (char *)"/File/_Open...", (char *)"<control>O", menu_show, MENU_OPEN, (char *)"<StockItem>", GTK_STOCK_OPEN },
    { (char *)"/File/_Save", (char *)"<control>S", menu_show, MENU_SAVE, (char *)"<StockItem>", GTK_STOCK_SAVE },
    { (char *)"/File/Save _As...", NULL, menu_show, MENU_SAVE_AS, (char *)"<StockItem>", GTK_STOCK_SAVE_AS },
    { (char *)"/File/sep", NULL, NULL, 0, (char *)"<Separator>", NULL },
    { (char *)"/File/_Quit", (char *)"<control>Q", menu_show, MENU_QUIT, (char *)"<StockItem>", GTK_STOCK_QUIT },
    { (char *)"/_Edit", NULL, NULL, 0, (char *)"<Branch>", NULL },
    { (char *)"/Edit/C_ut", (char *)"<control>X", menu_show, MENU_CUT, (char *)"<StockItem>", GTK_STOCK_CUT },
    { (char *)"/Edit/_Copy", (char *)"<control>C", menu_show, MENU_COPY, (char *)"<StockItem>", GTK_STOCK_COPY },
    { (char *)"/Edit/_Paste", (char *)"<control>V", menu_show, MENU_PASTE, (char *)"<StockItem>", GTK_STOCK_PASTE },
    { (char *)"/Edit/sep", NULL, NULL, 0, (char *)"<Separator>", NULL },
    { (char *)"/Edit/Select All", NULL, menu_show, MENU_SELECT_ALL, NULL, NULL },
    { (char *)"/_Search", NULL, NULL, 0, (char *)"<Branch>", NULL },
    { (char *)"/Search/_Find",  (char *)"<control>F" , menu_show, MENU_FIND,(char *)"<StockItem>", GTK_STOCK_FIND },
    { (char *)"/Search/_Replace", (char *)"<control>R" , menu_show, MENU_REPLACE,(char *)"<StockItem>", GTK_STOCK_FIND },
    { (char *)"/_Help", NULL, NULL, 0, (char *)"<Branch>", NULL },
    { (char *)"/Help/_Contents", (char *)"<control>H", menu_show, MENU_HELP, (char *)"<StockItem>", GTK_STOCK_HELP },
    { (char *)"/Help/_About",  NULL , menu_show, MENU_ABOUT, "<Item>" },

  };