asn1_createButton.c

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/*******************************************************************************
 * Copyright © 2014 The DTVKit Open Software Foundation Ltd (www.dtvkit.org)
 * Copyright © 2004 Ocean Blue Software Ltd
 * Copyright © 2000 Koninklijke Philips Electronics N.V
 *
 * This file is part of a DTVKit Software Component
 * You are permitted to copy, modify or distribute this file subject to the terms
 * of the DTVKit 1.0 Licence which can be found in licence.txt or at www.dtvkit.org
 * 
 * THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
 * EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * If you or your organisation is not a member of DTVKit then you have access
 * to this source code outside of the terms of the licence agreement
 * and you are expected to delete this and any associated files immediately.
 * Further information on DTVKit, membership and terms can be found at www.dtvkit.org
 *******************************************************************************/
/*---includes for this file--------------------------------------------------*/
#include <stdio.h>
#include "vpa1_sys.h"
#include "vpa1_tgs.h"
#include "fpa1_syn.h"
#include "asn1_sys.h"

#include "mh5base.h"
#include "mh5hotspot.h"
#include "mh5switchbutton.h"
#include "mh5pushbutton.h"
#include "asn1_createExtras.h"
#include "asn1_createVisible.h"
#include "asn1_createInteractible.h"
#include "asn1_createButton.h"

/*---constant definitions for this file--------------------------------------*/


/*---local typedef structs for this file-------------------------------------*/

/*---local (static) variable declarations for this file----------------------*/
#define BUTTONSTYLESIZE 4
#ifndef ASN1UKPROFILE
static MHEG5PushbuttonStyle buttonStyle[BUTTONSTYLESIZE] = {
   0, MHEG5PUSHBUTTONS, MHEG5RADIOBUTTON, MHEG5CHECKBOX
};
#endif

/*---local function definitions----------------------------------------------*/

/*---global function definitions---------------------------------------------*/

static asnErr asn1_decodeButton(fpa1_syntaxList *listPtr, MHEG5Button *button)
{
   asnErr errVal = 0;
   fpa1_syntaxList *currItem;

   DPL5((">> asn1_decodeButton(%X,%X)\n", listPtr, button));

   assert(button);
   if (listPtr == NULL)
   {
      DPL5(("<< asn1_decodeButton() Returned early\n"));
      return 1;
   }

   currItem = listPtr->children;

   /* searches current set of tags for local tags */
   while (currItem != NULL)
   {
      if (currItem->tag == BUTTONREFCOL)
      {
         errVal |= asn1_decodeColour(currItem, &button->buttonColour);
      }
      currItem = currItem->next;
   }
   /* decode inherited tags */
   errVal |= asn1_decodeVisible(listPtr, &button->visible);
   errVal |= asn1_decodeInteractible(listPtr, &button->interactible);

#if (DPLEVEL >= 2)
   if (errVal != 0)
   {
      DPL2(("WARNING:[ASN.1] asn1_decodeButton() Returns errVal = %d\n", errVal));
   }
#endif /* DPLEVEL >= 2 */

   DPL5(("<< asn1_decodeButton() Returns %d\n", errVal));

   return errVal;
}

MHEG5Ingredient* asn1_createButton( fpa1_syntaxList *listPtr )
{
   MHEG5Button *button;

   button = MHEG5getMem( sizeof(MHEG5Hotspot));
   if (button != NULL)
   {
      memset(button, 0, sizeof(MHEG5Hotspot));
      button->visible.ingredient.root.clazz = MHEG5HOTSPOT;
      if (asn1_decodeButton( listPtr, button ) != ASN_NO_ERROR)
      {
         MHEG5freeMem( button );
         button = NULL;
      }
   }
   return (MHEG5Ingredient *)button;
}

#ifndef ASN1UKPROFILE

asnErr asn1_decodePushbutton(fpa1_syntaxList *listPtr,
   MHEG5Pushbutton *pushbutton)
{
   asnErr errVal = 0;
   fpa1_syntaxList *currItem;

   DPL5((">> asn1_decodePushbutton(%X,%X)\n", listPtr, pushbutton));

   assert(pushbutton);
   if (listPtr == NULL)
   {
      DPL5(("<< asn1_decodePushbutton() Returned early\n"));
      return 1;
   }

   currItem = listPtr->children;

   /* defaults */
   pushbutton->characterSet = 10; /* According to UK Profile */

   /* searches current set of tags for local tags */
   while (currItem != NULL)
   {
      /* most objects will have more than one local tag */
      switch (currItem->tag)
      {
         case OLABEL:
            errVal |= asn1_decodeOctetString(currItem, &pushbutton->originalLabel);
            break;
         case CHARSET:
            pushbutton->characterSet = currItem->data.intData;
            break;
         default:
            break;
      }
      currItem = currItem->next;
   }

   /* decode inherited tags */
   errVal |= asn1_decodeButton(listPtr, &pushbutton->button);

#if (DPLEVEL >= 2)
   if (errVal != 0)
   {
      DPL2(("WARNING:[ASN.1] asn1_decodePushbutton() Returns errVal = %d\n", errVal));
   }
#endif /* DPLEVEL >= 2 */

   DPL5(("<< asn1_decodePushbutton() Returns %d\n", errVal));

   return errVal;
}

MHEG5Ingredient* asn1_createPushbutton( fpa1_syntaxList *listPtr )
{
   MHEG5Pushbutton *button;

   button = MHEG5getMem( sizeof(MHEG5Pushbutton));
   if (button != NULL)
   {
      memset(button, 0, sizeof(MHEG5Pushbutton));
      button->button.visible.ingredient.root.class = MHEG5PUSHBUTTON;
      if (asn1_decodePushbutton( listPtr, button ) != ASN_NO_ERROR)
      {
         MHEG5freeMem( button );
         button = NULL;
      }
   }
   return (MHEG5Ingredient *)button;
}

asnErr asn1_decodeSwitchButton(fpa1_syntaxList *listPtr,
   MHEG5Switchbutton *swButton)
{
   asnErr errVal = 0;
   fpa1_syntaxList *currItem;
   MHEG5Int enumIndex;

   DPL5((">> asn1_decodeSwitchButton(%X,%X)\n", listPtr, swButton));
   assert(swButton);
   if (listPtr == NULL)
   {
      DPL5(("<< asn1_decodeSwitchButton() Returned early\n"));
      return 1;
   }

   currItem = listPtr->children;

   /* searches current set of tags for local tags */
   while (currItem != NULL)
   {
      if (currItem->tag == BSTYLE)
      {
         enumIndex = currItem->data.intData;
         /* check the enumIndex value is in range, if not default to PushButton */
         if ((enumIndex < 0) || (enumIndex >= BUTTONSTYLESIZE))
         {
            enumIndex = MHEG5PUSHBUTTONS;
         }
         swButton->style = buttonStyle[enumIndex];
      }
      currItem = currItem->next;
   }
   /* decode inherited tags */
   errVal |= asn1_decodePushbutton(listPtr, &swButton->pushbutton);

#if (DPLEVEL >= 2)
   if (errVal != 0)
   {
      DPL2(("WARNING:[ASN.1] asn1_decodeSwitchButton() Returns errVal = %d\n", errVal));
   }
#endif /* DPLEVEL >= 2 */

   DPL5(("<< asn1_decodeSwitchButton() Returns %d\n", errVal));

   return errVal;
}

MHEG5Ingredient* asn1_createSwitchButton( fpa1_syntaxList *listPtr )
{
   MHEG5Switchbutton *button;

   button = MHEG5getMem( sizeof(MHEG5Switchbutton));
   if (button != NULL)
   {
      memset(button, 0, sizeof(MHEG5Switchbutton));
      button->button.visible.ingredient.root.class = MHEG5SWITCHBUTTON;
      if (asn1_decodeSwitchButton( listPtr, button ) != ASN_NO_ERROR)
      {
         MHEG5freeMem( button );
         button = NULL;
      }
   }
   return (MHEG5Ingredient *)button;
}

#endif /* ASN1UKPROFILE */