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/* gAlan - Graphical Audio Language
* Copyright (C) 1999 Tony Garnock-Jones
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include <gdk/gdk.h>
#include <gtk/gtk.h>
#include <gmodule.h>
#include "global.h"
#include "generator.h"
#include "comp.h"
#include "control.h"
#include "gencomp.h"
#define GENERATOR_CLASS_NAME "evtcomp"
#define GENERATOR_CLASS_PATH "Events/Compare"
#define EVT_INPUT 0
#define EVT_COMP 1
#define NUM_EVENT_INPUTS 2
#define EVT_OUTPUT 0
#define NUM_EVENT_OUTPUTS 1
typedef struct Data {
gdouble comp;
} Data;
PRIVATE int init_instance(Generator *g) {
Data *data = safe_malloc(sizeof(Data));
g->data = data;
data->comp = 0;
return 1;
}
PRIVATE void destroy_instance(Generator *g) {
free(g->data);
}
PRIVATE void unpickle_instance(Generator *g, ObjectStoreItem *item, ObjectStore *db) {
Data *data = safe_malloc(sizeof(Data));
g->data = data;
data->comp = objectstore_item_get_double(item, "evtcomp_comp", 0);
}
PRIVATE void pickle_instance(Generator *g, ObjectStoreItem *item, ObjectStore *db) {
Data *data = g->data;
objectstore_item_set_double(item, "evtcomp_comp", data->comp);
}
PRIVATE void evt_input_handler(Generator *g, AEvent *event) {
Data *data = (Data *) g->data;
if( event->d.number == data->comp ) {
event->d.number = 1;
gen_send_events(g, EVT_OUTPUT, -1, event);
}
}
PRIVATE void evt_comp_handler(Generator *g, AEvent *event) {
((Data *) g->data)->comp = event->d.number;
}
PRIVATE ControlDescriptor controls[] = {
/* { kind, name, min,max,step,page, size,editable, is_dst,queue_number,
init,destroy,refresh,refresh_data }, */
{ CONTROL_KIND_KNOB, "comp", 0,30,1,1, 0,TRUE, TRUE,EVT_COMP,
NULL,NULL, control_double_updater, (gpointer) offsetof(Data, comp) },
{ CONTROL_KIND_NONE, }
};
PRIVATE void setup_class(void) {
GeneratorClass *k = gen_new_generatorclass(GENERATOR_CLASS_NAME, FALSE,
NUM_EVENT_INPUTS, NUM_EVENT_OUTPUTS,
NULL, NULL, controls,
init_instance, destroy_instance,
unpickle_instance, pickle_instance);
gen_configure_event_input(k, EVT_INPUT, "Input", evt_input_handler);
gen_configure_event_input(k, EVT_COMP, "Compare", evt_comp_handler);
gen_configure_event_output(k, EVT_OUTPUT, "Output");
gencomp_register_generatorclass(k, FALSE, GENERATOR_CLASS_PATH,
NULL,
NULL);
}
PUBLIC void init_plugin_evtcomp(void) {
setup_class();
}
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