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/* objops.c
* functions that do operations to mudela objects
*
* for Denemo, a gtk+ frontend to GNU Lilypond
* (c) 1999, 2000, 2001 Matthew Hiller
*/
#include "datastructures.h"
#include "chordops.h"
#include "utils.h"
void
freeobject (mudelaobject * mudobj)
{
if (mudobj)
switch (mudobj->type)
{
case CHORD:
freechord (mudobj); /* Which also frees mudobj itself */
break;
default:
g_free (mudobj);
break;
}
}
mudelaobject *
newtimesigobj (gint time1, gint time2)
{
mudelaobject *ret;
ret = g_malloc (sizeof (mudelaobject));
ret->type = TIMESIG;
ret->u.timeval.time1 = time1;
ret->u.timeval.time2 = time2;
set_basic_numticks (ret);
setpixelmin (ret);
return ret;
}
mudelaobject *
newclefobj (gint type)
{
mudelaobject *ret;
ret = g_malloc (sizeof (mudelaobject));
ret->type = CLEF;
ret->u.clefval.type = type;
set_basic_numticks (ret);
setpixelmin (ret);
return ret;
}
/* This function initializes the accidental-context array associated with
* a key signature or a staff to that appropriate for _number_ */
void
initkeyaccs (gint * accs, gint number)
{
int index;
memset (accs, 0, SEVENGINTS);
if (number > 0)
for (index = 3; number; number--, index = (index + 4) % 7)
accs[index] = 1;
else if (number < 0)
for (index = 6; number; number++, index = (index + 3) % 7)
accs[index] = -1;
}
mudelaobject *
newkeyobj (gint number, gboolean isminor)
{
mudelaobject *ret;
ret = g_malloc (sizeof (mudelaobject));
ret->type = KEYSIG;
ret->u.keyval.number = number;
ret->u.keyval.isminor = isminor;
initkeyaccs (ret->u.keyval.accs, number);
set_basic_numticks (ret);
setpixelmin (ret);
return ret;
}
mudelaobject *
newmeasurebreakobject ()
{
mudelaobject *ret;
ret = g_malloc (sizeof (mudelaobject));
ret->type = MEASUREBREAK;
return ret;
}
mudelaobject *
clone_object (mudelaobject * orig)
{
mudelaobject *ret;
switch (orig->type)
{
case CHORD:
ret = clone_chord (orig);
break;
default:
ret = g_malloc (sizeof (mudelaobject));
memcpy (ret, orig, sizeof (mudelaobject));
break;
}
return ret;
}
mudelaobject *
stem_directive_new (gint type)
{
mudelaobject *ret;
ret = g_malloc (sizeof (mudelaobject));
ret->type = STEMDIRECTIVE;
ret->u.stemval.type = type;
set_basic_numticks (ret);
setpixelmin (ret);
return ret;
}
mudelaobject *
lily_directive_new (gchar * type)
{
mudelaobject *ret;
ret = g_malloc (sizeof (mudelaobject));
ret->type = LILYDIRECTIVE;
ret->u.lilyval.directive = g_string_new (type);
set_basic_numticks (ret);
setpixelmin (ret);
return ret;
}
mudelaobject *
dynamic_new (gchar * type)
{
mudelaobject *ret;
ret = g_malloc (sizeof (mudelaobject));
ret->type = DYNAMIC;
ret->u.dynval.type = g_string_new (type);
set_basic_numticks (ret);
setpixelmin (ret);
return ret;
}
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