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gadget_Container.c

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/*
 *    gui - [gega user interface] the flexible solution for user interface problems
 *    Copyright (C) 2002  Gergely Gati
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; version 2 of the License.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *    Gergely Gati
 *      email:           g.gati@freemail.hu
 *      AIM screenname:  GatiGergely
 *      ICQ number:      93131690
 *
 */
/*
 *  container.c
 */
#include <stdlib.h>

#include "debug.h"
#include "classes.h"
#include "Memory.h"
#include "Bases.h"
#include "Module.h"
#include "Common.h"

#include "gadgets/gadget_Container.h"


struct _container
{
  Gadget_t gadget;
  Gadget_t *child;
};



static bases_Modules_t *api;
VERSION("Container.gadget",1,0,"Gergely Gati","g.gati@freemail.hu");


static int container_gadget_event_handler(Gadget_t *this, int event, tag *taglist)
{
  int ret=-1;

  debug_Begin();
  debug_Message("event=%d",event);

  if(this!=NULL&&event>=0)
  {
    switch(event)
    {
      case GADEV_INIT_GADGET:
      {
        ret=0;
        break;
      }
      case GADEV_DELETE_GADGET:
      {
        ret=0;
        break;
      }
      case GADEV_GET_EXTENT:
      {
        Extent_t *min,*max,n,x;
        min=(Extent_t *)tag_GetTagData(taglist,TAG_GAD_EXTMIN,(u32)&n);
        max=(Extent_t *)tag_GetTagData(taglist,TAG_GAD_EXTMAX,(u32)&x);
        if(((container *)this)->child==NULL) ((container *)this)->child=(Gadget_t *)api->gadget_Call(GADGET_FIRST_CHILD,TAG_GADGET_OBJECT,this,TAG_DONE);
        if(((container *)this)->child!=NULL)
        {
          api->gadget_Call(GADGET_GET_EXTENT,TAG_GADGET_OBJECT,((container *)this)->child,TAG_GADGET_MIN,min,TAG_GADGET_MAX,max,TAG_DONE);
          ret=0;
        }
        break;
      }
      case GADEV_SUGGEST_EXTENT:
      {
        Rect_t *rect,r;
        rect=(Rect_t *)tag_GetTagData(taglist,TAG_GAD_RECT,(u32)&r);
        if(((container *)this)->child==NULL) ((container *)this)->child=(Gadget_t *)api->gadget_Call(GADGET_FIRST_CHILD,TAG_GADGET_OBJECT,this,TAG_DONE);
        if(((container *)this)->child!=NULL)
        {
          api->gadget_Call(GADGET_SUGGEST_EXTENT,TAG_GADGET_OBJECT,((container *)this)->child,TAG_GADGET_RECT,rect,TAG_DONE);
          ret=0;
        }
        break;
      }
      case GADEV_LAYOUT:
      {
        Rect_t *rect,r;
        rect=(Rect_t *)tag_GetTagData(taglist,TAG_GAD_RECT,(u32)&r);
        if(((container *)this)->child==NULL) ((container *)this)->child=(Gadget_t *)api->gadget_Call(GADGET_FIRST_CHILD,TAG_GADGET_OBJECT,this,TAG_DONE);
        if(((container *)this)->child!=NULL)
        {
          api->gadget_Call(GADGET_LAYOUT,TAG_GADGET_OBJECT,((container *)this)->child,TAG_GADGET_RECT,rect,TAG_DONE);
          ret=0;
        }
        break;
      }
      case GADEV_DAMAGE:
      {
        Rect_t *rect,r;
        rect=(Rect_t *)tag_GetTagData(taglist,TAG_GAD_RECT,(u32)&r);
        if(((container *)this)->child==NULL) ((container *)this)->child=(Gadget_t *)api->gadget_Call(GADGET_FIRST_CHILD,TAG_GADGET_OBJECT,this,TAG_DONE);
        if(((container *)this)->child!=NULL)
        {
          api->gadget_Call(GADGET_DAMAGE,TAG_GADGET_OBJECT,((container *)this)->child,TAG_GADGET_RECT,rect,TAG_DONE);
          ret=0;
        }
        break;
      }
      case GADEV_SAVE:
      {
        ret=0;
        break;
      }
      case GADEV_RESTORE:
      {
        ret=0;
        break;
      }
    }
  }

  debug_End();

  return(ret);
}


static void init_container_class(u32 module)
{
  api->gadget_Call(GADGET_REGISTER_CLASS,
                            TAG_GADGET_CLASS_ID,CLASS_CONTAINER_ID,
                            TAG_GADGET_NAME,CLASS_CONTAINER_NAME,
                TAG_GADGET_BINDING,NULL,
                TAG_GADGET_COLOR_NAMES,NULL,
                TAG_GADGET_CUSTOM_NAMES,NULL,
                TAG_GADGET_STATE_MASK,GADSTF_NORMAL,
                TAG_GADGET_MODULE,module,
                TAG_GADGET_GADGET_SIZE,sizeof(container),
                TAG_GADGET_METHODS,NULL,
                TAG_GADGET_INPUT_EVENT_HANDLER,NULL,
                TAG_GADGET_EVENT_HANDLER,NULL,
                TAG_GADGET_GADGET_EVENT_HANDLER,container_gadget_event_handler,
                TAG_DONE);
}


EXPORT int module_Init(u32 module, bases_Modules_t *bases)
{
    api=bases;
    init_container_class(module);
    return(0);
}

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