128 lines
3.0 KiB
C
128 lines
3.0 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"
|
|
|
|
/**
|
|
* Throbber images context
|
|
*/
|
|
struct nsgtk_throbber
|
|
{
|
|
int nframes; /**< Number of frames in the throbber */
|
|
GdkPixbuf **framedata; /* pixbuf data for the frames */
|
|
};
|
|
|
|
static 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)
|
|
{
|
|
nserror res = NSERROR_OK;
|
|
struct nsgtk_throbber *throb;
|
|
int frame;
|
|
char resname[] = THROBBER_FMT;
|
|
|
|
throb = malloc(sizeof(*throb));
|
|
if (throb == NULL) {
|
|
return NSERROR_NOMEM;
|
|
}
|
|
|
|
throb->framedata = malloc(sizeof(GdkPixbuf *) * THROBBER_FRAMES);
|
|
if (throb->framedata == NULL) {
|
|
free(throb);
|
|
return NSERROR_NOMEM;
|
|
}
|
|
|
|
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;
|
|
}
|
|
NSLOG(netsurf, INFO, "%s", resname);
|
|
}
|
|
|
|
if (frame < 1) {
|
|
/* we need at least two frames - one for idle, one for active */
|
|
NSLOG(netsurf, INFO,
|
|
"Insufficent number of frames (%d) in throbber animation.",
|
|
frame);
|
|
res = NSERROR_INIT_FAILED;
|
|
}
|
|
|
|
throb->nframes = frame;
|
|
nsgtk_throbber = throb;
|
|
return res;
|
|
}
|
|
|
|
/* exported interface documented in gtk/throbber.h */
|
|
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;
|
|
}
|
|
|
|
|
|
/* exported interface documented in gtk/throbber.h */
|
|
nserror nsgtk_throbber_get_frame(int frame, GdkPixbuf **pixbuf)
|
|
{
|
|
nserror res = NSERROR_OK;
|
|
|
|
/* ensure initialisation */
|
|
if (nsgtk_throbber == NULL) {
|
|
res = nsgtk_throbber_init();
|
|
}
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
/* ensure frame in range */
|
|
if ((frame < 0) || (frame >= nsgtk_throbber->nframes)) {
|
|
return NSERROR_BAD_SIZE;
|
|
}
|
|
|
|
/* ensure there is frame data */
|
|
if (nsgtk_throbber->framedata[frame] == NULL) {
|
|
return NSERROR_INVALID;
|
|
}
|
|
|
|
*pixbuf = nsgtk_throbber->framedata[frame];
|
|
return NSERROR_OK;
|
|
}
|