netsurf/frontends/gtk/throbber.c
2016-05-15 13:44:34 +01:00

92 lines
2.2 KiB
C

/*
* Copyright 2008 Rob Kendrick <rjek@netsurf-browser.org>
* Copyright 2008 Sean Fox <dyntryx@gmail.com>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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.
*
* NetSurf 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <gtk/gtk.h>
#include <stdint.h>
#include "utils/log.h"
#include "gtk/resources.h"
#include "gtk/throbber.h"
struct nsgtk_throbber *nsgtk_throbber = NULL;
#define THROBBER_FRAMES 9
#define THROBBER_FMT "throbber/throbber%d.png"
/* exported interface documented in gtk/throbber.h */
nserror nsgtk_throbber_init(void)
{
struct nsgtk_throbber *throb; /**< structure we generate */
int frame;
char resname[] = THROBBER_FMT;
nserror res = NSERROR_OK;
throb = malloc(sizeof(*throb));
if (throb == NULL) {
return NSERROR_NOMEM;
}
throb->framedata = malloc(sizeof(GdkPixbuf *) * THROBBER_FRAMES);
if (throb->framedata == NULL) {
free(throb);
return false;
}
for (frame = 0; frame < THROBBER_FRAMES; frame++) {
snprintf(resname, sizeof(resname), THROBBER_FMT, frame);
res = nsgdk_pixbuf_new_from_resname(resname,
throb->framedata + frame);
if (res != NSERROR_OK) {
break;
}
LOG("%s",resname);
}
if (frame < 1) {
/* we need at least two frames - one for idle, one for active */
LOG("Insufficent number of frames (%d) in throbber animation.", frame);
res = NSERROR_INIT_FAILED;
}
throb->nframes = frame;
nsgtk_throbber = throb;
return res;
}
void nsgtk_throbber_finalise(void)
{
int i;
for (i = 0; i < nsgtk_throbber->nframes; i++)
g_object_unref(nsgtk_throbber->framedata[i]);
free(nsgtk_throbber->framedata);
free(nsgtk_throbber);
nsgtk_throbber = NULL;
}