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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"
#include "msgbox.h"
#include <unistd.h>
#define GENERATOR_CLASS_NAME "filereq"
#define GENERATOR_CLASS_PATH "Controls/File Requester"
#define EVT_REQUEST 0
#define EVT_FILENAME 0
typedef struct Data {
char *filename;
GThread *thread;
GAsyncQueue *req;
} Data;
PRIVATE void access_output_file(GtkWidget *widget, GtkWidget *fs) {
AEvent event;
Generator *g = gtk_object_get_data(GTK_OBJECT(fs), "Generator");
Data *data = g->data;
const char *filename = gtk_file_selection_get_filename(GTK_FILE_SELECTION(fs));
if (data->filename != NULL)
free(data->filename);
data->filename = safe_string_dup(filename);
gtk_widget_destroy(fs); /* %%% should this be gtk_widget_hide? uber-paranoia */
gen_init_aevent(&event, AE_STRING, NULL, 0, NULL, 0, gen_get_sampletime() );
event.d.string = safe_string_dup( data->filename );
gen_send_events(g, EVT_FILENAME, -1, &event);
}
PRIVATE gpointer req_thread( Generator *g ) {
Data *data = g->data;
GtkWidget *fs;
while( 1 ) {
gpointer ptr = g_async_queue_pop( data->req );
if( ptr == NULL )
break;
else {
gdk_threads_enter();
fs = gtk_file_selection_new("Select File");
gtk_object_set_data(GTK_OBJECT(fs), "Generator", g);
gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(fs)->ok_button), "clicked",
GTK_SIGNAL_FUNC(access_output_file), fs);
gtk_signal_connect_object(GTK_OBJECT(GTK_FILE_SELECTION(fs)->cancel_button), "clicked",
GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT(fs));
if (data->filename != NULL)
gtk_file_selection_set_filename(GTK_FILE_SELECTION(fs), data->filename);
gtk_window_set_modal(GTK_WINDOW(fs), TRUE);
gtk_widget_show(fs);
gdk_threads_leave();
}
}
return NULL;
}
PRIVATE int init_instance(Generator *g) {
Data *data = safe_malloc(sizeof(Data));
g->data = data;
data->filename = NULL;
data->req = g_async_queue_new();
data->thread = g_thread_create( (GThreadFunc) req_thread, (gpointer) g, TRUE, NULL );
return 1;
}
PRIVATE void destroy_instance(Generator *g) {
Data *data = g->data;
if (data->filename != NULL)
free(data->filename);
g_async_queue_push( data->req, NULL );
free(g->data);
}
PRIVATE void evt_request_handler(Generator *g, AEvent *event) {
Data *data = g->data;
g_async_queue_push( data->req, (gpointer) 1 );
}
PRIVATE InputSignalDescriptor input_sigs[] = {
{ NULL, }
};
PRIVATE OutputSignalDescriptor output_sigs[] = {
{ NULL, }
};
PRIVATE ControlDescriptor controls[] = {
/* { kind, name, min,max,step,page, size,editable, is_dst,queue_number,
init,destroy,refresh,refresh_data }, */
{ CONTROL_KIND_BUTTON, "req", 0,0,0,0, 0,FALSE, TRUE,EVT_REQUEST, NULL,NULL,NULL },
{ CONTROL_KIND_NONE, }
};
PRIVATE void setup_class(void) {
GeneratorClass *k = gen_new_generatorclass(GENERATOR_CLASS_NAME, FALSE, 1, 1,
input_sigs, output_sigs, controls,
init_instance, destroy_instance,
(AGenerator_pickle_t) init_instance, NULL);
gen_configure_event_input(k, EVT_REQUEST, "Req", evt_request_handler);
gen_configure_event_output(k, EVT_FILENAME, "Filename");
gencomp_register_generatorclass(k, FALSE, GENERATOR_CLASS_PATH, NULL, NULL);
}
PUBLIC void init_plugin_filerequester(void) {
setup_class();
}
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