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/** \file
* \brief Ihandle management
*
* See Copyright Notice in "iup.h"
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <memory.h>
#include "iup.h"
#include "iup_object.h"
#include "iup_assert.h"
#include "iup_register.h"
#include "iup_names.h"
static Ihandle* iHandleCreate(void)
{
Ihandle *ih = (Ihandle*)malloc(sizeof(Ihandle));
memset(ih, 0, sizeof(Ihandle));
ih->sig[0] = 'I';
ih->sig[1] = 'U';
ih->sig[2] = 'P';
ih->sig[3] = 0;
ih->serial = -1;
ih->attrib = iupTableCreate(IUPTABLE_STRINGINDEXED);
return ih;
}
static void iHandleDestroy(Ihandle* ih)
{
iupTableDestroy(ih->attrib);
memset(ih, 0, sizeof(Ihandle));
free(ih);
}
int iupObjectCheck(Ihandle* ih)
{
char* sig = (char*)ih;
if (!ih) return 0;
if (sig[0] != 'I' ||
sig[1] != 'U' ||
sig[2] != 'P' ||
sig[3] != 0)
return 0;
return 1;
}
Ihandle* iupObjectCreate(Iclass* iclass, void** params)
{
/* create the base handle structure */
Ihandle* ih = iHandleCreate();
ih->iclass = iclass;
/* create the element */
if (iupClassObjectCreate(ih, params) == IUP_ERROR)
{
iupERROR1("IUP object creation failed (%s).", iclass->name);
iHandleDestroy(ih);
return NULL;
}
/* ensure attributes default values, at this time only the ones that can be set before map */
iupClassObjectEnsureDefaultAttributes(ih);
return ih;
}
void** iupObjectGetParamList(void* first, va_list arglist)
{
const int INITIAL_NUMBER = 50;
void **params;
void *param;
int max_count = INITIAL_NUMBER, count = 0;
params = (void **) malloc (sizeof (void *) * INITIAL_NUMBER);
param = first;
while (param != NULL)
{
params[count] = param;
count++;
/* verifica se precisa realocar memoria */
if (count >= max_count)
{
void **new_params = NULL;
max_count += INITIAL_NUMBER;
new_params = (void **) realloc (params, sizeof (void *) * max_count);
params = new_params;
}
param = va_arg (arglist, void*);
}
params[count] = NULL;
return params;
}
Ihandle* IupCreatev(const char *name, void **params)
{
Iclass *ic;
iupASSERT(name!=NULL);
ic = iupRegisterFindClass(name);
if (ic)
return iupObjectCreate(ic, params);
else
return NULL;
}
Ihandle *IupCreatep(const char *name, void* first, ...)
{
va_list arglist;
void **params;
Ihandle *ih;
iupASSERT(name!=NULL);
va_start(arglist, first);
params = iupObjectGetParamList(first, arglist);
va_end(arglist);
ih = IupCreatev(name, params);
free(params);
return ih;
}
Ihandle* IupCreate(const char *name)
{
iupASSERT(name!=NULL);
return IupCreatev(name, NULL);
}
void IupDestroy(Ihandle *ih)
{
Icallback cb;
iupASSERT(iupObjectCheck(ih));
if (!iupObjectCheck(ih))
return;
/* Hide before destroy to avoid children redraw */
if (ih->iclass->nativetype == IUP_TYPEDIALOG)
IupHide(ih);
cb = IupGetCallback(ih, "DESTROY_CB");
if (cb) cb(ih);
/* Destroy all its children.
Just need to remove the first child,
IupDetach will update firstchild. */
while (ih->firstchild)
IupDestroy(ih->firstchild);
/* unmap if mapped and remove from its parent child list */
IupDetach(ih);
/* removes names associated with the element */
iupRemoveNames(ih);
/* destroy the element */
iupClassObjectDestroy(ih);
/* destroy the private data */
if (ih->data)
free(ih->data);
/* destroy the base handle structure */
iHandleDestroy(ih);
}
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