mh5font.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 <stdlib.h>
#include "mh5font.h"
#include "mh5memory.h"          /* for constructor  */
#include "mh5queue.h"           /* Events           */
#include "mh5application.h"
#include "mh5scene.h"
#include "mh5text.h"
#include "mh5object.h"
#include "mh5gate.h"
#include "mh5display.h"
#include "mh5text.h"

/*
   Debug
 */
#ifdef MH5PRINTOUT

void MHEG5fontPrint(MHEG5Font *font, char *out)
{
   MHEG5ingredientPrint(&font->ingredient, out);
}

#endif

static void MHEG5fontRefreshText( MHEG5Group *group, MHEG5Font *font )
{
   MHEG5Ingredient *item;
   MHEG5Text *text;
   assert(font);
   if (group)
   {
      item = group->itemHead;
      while (item != 0)
      {
         switch (item->root.clazz)
         {
            case MHEG5TEXT:
            case MHEG5HYPERTEXT:
            case MHEG5ENTRYFIELD:
               text = (MHEG5Text *)item;
               if (text->font.referenced &&
                   text->font.ref.referenced.id == font->ingredient.root.id)
               {
                  if ((text->font.ref.referenced.grp.ptr.group == font->ingredient.root.grp) ||
                      ((text->font.ref.referenced.grp.len != 0) &&
                       MHEG5sameGroup(font->ingredient.root.grp, text->font.ref.referenced.grp))
                      )
                  {
                     /* Found a Text object that references this Font object, redraw text */
                     MHEG5textRedraw( text );
                  }
               }
            default:;
         }
         item = item->next;
      }
   }
}

void MHEG5fontRefreshTexts( MHEG5Font *font )
{
   MHEG5fontRefreshText((MHEG5Group *)MHEG5getCurrentApplication(), font );
   MHEG5fontRefreshText((MHEG5Group *)MHEG5getCurrentScene(), font );
}

/*
     Constructor
 */
void MHEG5fontInit(MHEG5Font *font)
{
   assert(font);

   MHEG5ingredientInit(&font->ingredient);
}

void MHEG5fontFree(MHEG5Font *font)
{
   assert(font);

   MHEG5ingredientFree(&font->ingredient);
}

/*
     Internal behaviours
 */
/*
     no special Prepare Function
 */
void MHEG5fontPrepare(MHEG5Font *font)
{
   assert(font);
   MHEG5ingredientPrepare(&font->ingredient);
}

/*
     freeMem of Font
 */
void MHEG5fontDestruct(MHEG5Font *font)
{
   assert(font);
   MHEG5ingredientDestruct(&font->ingredient);
}

/*
     Activation
 */
void MHEG5fontActivate(MHEG5Font *font)
{
   assert(font);
   if (!font->ingredient.root.runningStatus)
   {
      if (!font->ingredient.root.availabilityStatus)
      {
         MHEG5fontPrepare( font );
      }
      MHEG5ingredientActivate(&font->ingredient);
      font->ingredient.root.runningStatus = MHEG5TRUE;
      MHEG5sendSync((MHEG5Root *) font, MHEG5ISRUNNING, 0);
   }
}

/*
     Deactivation
 */
void MHEG5fontDeactivate(MHEG5Font *font)
{
   assert(font);
   MHEG5ingredientDeactivate(&font->ingredient);
}