/* Example8                                                           */
/* This program will open a normal window which is connected to the   */
/* Workbench Screen. The window will use all System Gadgets, and will */
/* close first when the user has selected the System gadget Close     */
/* window. Inside the window we have put an Integer gadget.           */



#include <intuition/intuition.h>



struct IntuitionBase *IntuitionBase;



/* THE INTEGER GADGET's STRUCTURES: */

/* The coordinates for the box: */
SHORT my_points[]=
{
   -7, -4, /* Start at position (-7, -4) */
  200, -4, /* Draw a line to the right to position (200,-4) */
  200, 11, /* Draw a line down to position (200,11) */
   -7, 11, /* Draw a line to the right to position (-7,11) */
   -7, -4  /* Finish of by drawing a line up to position (-7,-4) */ 
};

/* The Border structure: */
struct Border my_border=
{
  0, 0,        /* LeftEdge, TopEdge. */
  1,           /* FrontPen, colour register 1. */
  0,           /* BackPen, for the moment unused. */
  JAM1,        /* DrawMode, draw the lines with colour 1. */
  5,           /* Count, 5 pair of coordinates in the array. */
  my_points,   /* XY, pointer to the array with the coordinates. */
  NULL,        /* NextBorder, no other Border structures are connected. */
};



/* The IntuiText structure: */
struct IntuiText my_text=
{
  1,         /* FrontPen, colour register 1. */
  0,         /* BackPen, colour register 0. */
  JAM1,      /* DrawMode, draw the characters with colour 1, do not */
             /* change the background. */ 
  -37, 0,    /* LeftEdge, TopEdge. */
  NULL,      /* ITextFont, use default font. */
  "Nr:",     /* IText, the text that will be printed. */
  NULL,      /* NextText, no other IntuiText structures. */
};



UBYTE my_buffer[25]; /* 25 characters including the NULL-sign. */
UBYTE my_undo_buffer[25]; /* Must be at least as big as my_buffer. */



struct StringInfo my_string_info=
{
  my_buffer,       /* Buffer, pointer to a null-terminated string. */
  my_undo_buffer,  /* UndoBuffer, pointer to a null-terminated string. */
                   /* (Remember my_buffer is equal to &my_buffer[0]) */
  0,               /* BufferPos, initial position of the cursor. */
  25,              /* MaxChars, 25 characters + null-sign ('\0'). */
  0,               /* DispPos, first character in the string should be */
                   /* first character in the display. */

  /* Intuition initializes and maintaines these variables: */

  0,               /* UndoPos */
  0,               /* NumChars */
  0,               /* DispCount */
  0, 0,            /* CLeft, CTop */
  NULL,            /* LayerPtr */
  NULL,            /* LongInt */
  NULL,            /* AltKeyMap */
};


struct Gadget my_gadget=
{
  NULL,          /* NextGadget, no more gadgets in the list. */
  68,            /* LeftEdge, 68 pixels out. */
  30,            /* TopEdge, 30 lines down. */
  198,           /* Width, 198 pixels wide. */
  8,             /* Height, 8 pixels lines heigh. */
  GADGHCOMP,     /* Flags, draw the select box in the complement */
                 /* colours. Note: it actually only the cursor which */
                 /* will be drawn in the complement colours (yellow). */
                 /* If you set the flag GADGHNONE the cursor will not be */
                 /* highlighted, and the user will therefore not be able */
                 /* to see it. */
  GADGIMMEDIATE| /* Activation, our program will recieve a message when */
  RELVERIFY|     /* the user has selected this gadget, and when the user */
                 /* has released it. */ 
  LONGINT,       /* An Integer gadget. */
  STRGADGET,     /* GadgetType, a String gadget. */
  (APTR) &my_border, /* GadgetRender, a pointer to our Border structure. */
  NULL,          /* SelectRender, NULL since we do not supply the gadget */
                 /* with an alternative image. */
  &my_text,      /* GadgetText, a pointer to our IntuiText structure. */
  NULL,          /* MutualExclude, no mutual exclude. */
  (APTR) &my_string_info, /* SpecialInfo, a pointer to a StringInfo str. */
  0,             /* GadgetID, no id. */
  NULL           /* UserData, no user data connected to the gadget. */
};



/* Declare a pointer to a Window structure: */ 
struct Window *my_window;

/* Declare and initialize your NewWindow structure: */
struct NewWindow my_new_window=
{
  50,            /* LeftEdge    x position of the window. */
  25,            /* TopEdge     y positio of the window. */
  320,           /* Width       320 pixels wide. */
  100,           /* Height      100 lines high. */
  0,             /* DetailPen   Text should be drawn with colour reg. 0 */
  1,             /* BlockPen    Blocks should be drawn with colour reg. 1 */
  CLOSEWINDOW|   /* IDCMPFlags  The window will give us a message if the */
                 /*             user has selected the Close window gad, */
  GADGETDOWN|    /*             or a gadget has been pressed on, or */
  GADGETUP,      /*             a gadge has been released. */
  SMART_REFRESH| /* Flags       Intuition should refresh the window. */
  WINDOWCLOSE|   /*             Close Gadget. */
  WINDOWDRAG|    /*             Drag gadget. */
  WINDOWDEPTH|   /*             Depth arrange Gadgets. */
  WINDOWSIZING|  /*             Sizing Gadget. */
  ACTIVATE,      /*             The window should be Active when opened. */
  &my_gadget,    /* FirstGadget A pointer to the String gadget. */
  NULL,          /* CheckMark   Use Intuition's default CheckMark. */
  "Integer Window",/* Title       Title of the window. */
  NULL,          /* Screen      Connected to the Workbench Screen. */
  NULL,          /* BitMap      No Custom BitMap. */
  320,           /* MinWidth    We will not allow the window to become */
  50,            /* MinHeight   smaller than 320 x 50, and not bigger */
  640,           /* MaxWidth    than 640 x 200. */
  200,           /* MaxHeight */
  WBENCHSCREEN   /* Type        Connected to the Workbench Screen. */
};



main()
{
  /* Boolean variable used for the while loop: */
  BOOL close_me;
 
  /* Declare a variable in which we will store the IDCMP flag: */
  ULONG class;

  /* Declare a pointer to an IntuiMessage structure: */
  struct IntuiMessage *my_message;



  /* Put an integer value in the string: */
  /* This is very important! */
  strcpy( my_buffer, "0" );



  /* Before we can use Intuition we need to open the Intuition Library: */
  IntuitionBase = (struct IntuitionBase *)
    OpenLibrary( "intuition.library", 0 );
  
  if( IntuitionBase == NULL )
    exit(); /* Could NOT open the Intuition Library! */



  /* We will now try to open the window: */
  my_window = (struct Window *) OpenWindow( &my_new_window );
  
  /* Have we opened the window succesfully? */
  if(my_window == NULL)
  {
    /* Could NOT open the Window! */
    
    /* Close the Intuition Library since we have opened it: */
    CloseLibrary( IntuitionBase );

    exit();  
  }



  /* We have opened the window, and everything seems to be OK. */



  close_me = FALSE;

  /* Stay in the while loop until the user has selected the Close window */
  /* gadget: */
  while( close_me == FALSE )
  {
    /* Wait until we have recieved a message: */
    Wait( 1 << my_window->UserPort->mp_SigBit );

    /* Collect the message: */
    my_message = (struct IntuiMessage *) GetMsg( my_window->UserPort );

    /* Have we collected the message sucessfully? */
    if(my_message)
    {
      /* After we have collected the message we can read it, and save any */
      /* important values which we maybe want to check later: */
      class = my_message->Class;      /* Save the IDCMP flag. */
  
      /* After we have read it we reply as fast as possible: */
      /* REMEMBER! Do never try to read a message after you have replied! */
      /* Some other process has maybe changed it. */
      ReplyMsg( my_message );
  
      /* Check which IDCMP flag was sent: */
      switch( class )
      {
        case CLOSEWINDOW:  /* The user selected the Close window gadget! */
               close_me=TRUE;
               break;
               
        case GADGETDOWN:   /* The user has selected the Integer gadget: */
                           /* (Clicked inside the select box) */
               printf("Integer gadget selected.\n");
               break;
               
        case GADGETUP:     /* The user has released the Integer gadget: */
                           /* (Pressed ENTER or RETURN) */
               printf("Integer gadget released.\n");
               /* Print out the integer value: */
               printf("Nr: %d\n\n", my_string_info.LongInt);
               break;
      }
    }
  }


  /* We should always close the windows we have opened before we leave: */
  CloseWindow( my_window );



  /* Close the Intuition Library since we have opened it: */
  CloseLibrary( IntuitionBase );

  /* THE END */
}
