netsurf/gtk/throbber.c

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/*
* Copyright 2008 Rob Kendrick <rjek@netsurf-browser.org>
Merged revisions 4345-4346,4350-4351,4389,4391,4395,4401-4403,4423,4485-4486 via svnmerge from svn://semichrome.net/branches/dynis/netsurf ........ r4345 | dynis | 2008-06-15 18:37:23 -0500 (Sun, 15 Jun 2008) | 1 line Move NetSurf's gifread.h to libnsgif ........ r4346 | dynis | 2008-06-15 18:38:38 -0500 (Sun, 15 Jun 2008) | 1 line Remove NetSurf's gifread.c (replaced by libnsgif) ........ r4350 | dynis | 2008-06-15 18:57:17 -0500 (Sun, 15 Jun 2008) | 1 line Added references to libnsgif where necessary; corrected function calls where callbacks were implemented ........ r4351 | dynis | 2008-06-15 19:00:33 -0500 (Sun, 15 Jun 2008) | 1 line Updated Makefile to compile with libnsgif ........ r4389 | dynis | 2008-06-18 13:58:51 -0500 (Wed, 18 Jun 2008) | 1 line Altered bitmap callback table name for gif images to avoid ambiguity when bmp image library is created ........ r4391 | dynis | 2008-06-18 14:08:39 -0500 (Wed, 18 Jun 2008) | 1 line Updated netsurf branch to use new bitmap callback table structure name that was altered in libnsgif ........ r4395 | dynis | 2008-06-18 14:54:51 -0500 (Wed, 18 Jun 2008) | 1 line Corrected param comments for bitmap_set_suspendable() ........ r4401 | dynis | 2008-06-18 18:39:50 -0500 (Wed, 18 Jun 2008) | 1 line Added references to libnsbmp where necessary; corrected function calls where callbacks were implemented ........ r4402 | dynis | 2008-06-18 18:40:47 -0500 (Wed, 18 Jun 2008) | 1 line Updated Makefile to compile with libnsbmp ........ r4403 | dynis | 2008-06-18 18:41:53 -0500 (Wed, 18 Jun 2008) | 1 line Remove NetSurf's bmpread.c and bmpread.h (replaced by libnsbmp) ........ r4423 | dynis | 2008-06-22 14:21:30 -0500 (Sun, 22 Jun 2008) | 1 line Correct a silly mistake in nsbmp_bitmap_create ........ r4485 | dynis | 2008-07-01 04:13:48 -0500 (Tue, 01 Jul 2008) | 1 line Integrated the latest versions of libnsgif and libnsbmp into NetSurf ........ r4486 | dynis | 2008-07-01 05:27:10 -0500 (Tue, 01 Jul 2008) | 1 line Altered bitmap functions to receive void pointers for proper utilisation of libnsgif and libnsbmp ........ svn path=/trunk/netsurf/; revision=5071
2008-08-12 07:49:34 +04:00
* 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>
#ifdef WITH_GIF
Merged revisions 4345-4346,4350-4351,4389,4391,4395,4401-4403,4423,4485-4486 via svnmerge from svn://semichrome.net/branches/dynis/netsurf ........ r4345 | dynis | 2008-06-15 18:37:23 -0500 (Sun, 15 Jun 2008) | 1 line Move NetSurf's gifread.h to libnsgif ........ r4346 | dynis | 2008-06-15 18:38:38 -0500 (Sun, 15 Jun 2008) | 1 line Remove NetSurf's gifread.c (replaced by libnsgif) ........ r4350 | dynis | 2008-06-15 18:57:17 -0500 (Sun, 15 Jun 2008) | 1 line Added references to libnsgif where necessary; corrected function calls where callbacks were implemented ........ r4351 | dynis | 2008-06-15 19:00:33 -0500 (Sun, 15 Jun 2008) | 1 line Updated Makefile to compile with libnsgif ........ r4389 | dynis | 2008-06-18 13:58:51 -0500 (Wed, 18 Jun 2008) | 1 line Altered bitmap callback table name for gif images to avoid ambiguity when bmp image library is created ........ r4391 | dynis | 2008-06-18 14:08:39 -0500 (Wed, 18 Jun 2008) | 1 line Updated netsurf branch to use new bitmap callback table structure name that was altered in libnsgif ........ r4395 | dynis | 2008-06-18 14:54:51 -0500 (Wed, 18 Jun 2008) | 1 line Corrected param comments for bitmap_set_suspendable() ........ r4401 | dynis | 2008-06-18 18:39:50 -0500 (Wed, 18 Jun 2008) | 1 line Added references to libnsbmp where necessary; corrected function calls where callbacks were implemented ........ r4402 | dynis | 2008-06-18 18:40:47 -0500 (Wed, 18 Jun 2008) | 1 line Updated Makefile to compile with libnsbmp ........ r4403 | dynis | 2008-06-18 18:41:53 -0500 (Wed, 18 Jun 2008) | 1 line Remove NetSurf's bmpread.c and bmpread.h (replaced by libnsbmp) ........ r4423 | dynis | 2008-06-22 14:21:30 -0500 (Sun, 22 Jun 2008) | 1 line Correct a silly mistake in nsbmp_bitmap_create ........ r4485 | dynis | 2008-07-01 04:13:48 -0500 (Tue, 01 Jul 2008) | 1 line Integrated the latest versions of libnsgif and libnsbmp into NetSurf ........ r4486 | dynis | 2008-07-01 05:27:10 -0500 (Tue, 01 Jul 2008) | 1 line Altered bitmap functions to receive void pointers for proper utilisation of libnsgif and libnsbmp ........ svn path=/trunk/netsurf/; revision=5071
2008-08-12 07:49:34 +04:00
#include <libnsgif.h>
#endif
#include "utils/log.h"
#include "gtk/throbber.h"
#include "gtk/bitmap.h"
struct nsgtk_throbber *nsgtk_throbber = NULL;
/**
* Creates the throbber using a PNG for each frame. The number of frames must
* be at least two. The first frame is the inactive frame, others are the
* active frames.
*
* \param frames The number of frames. Must be at least two.
* \param ... Filenames of PNGs containing frames.
* \return true on success.
*/
bool nsgtk_throbber_initialise_from_png(const int frames, char** frame_files)
{
GError *err = NULL;
struct nsgtk_throbber *throb; /**< structure we generate */
bool errors_when_loading = false; /**< true if a frame failed */
int frame_loop;
if (frames < 2) {
/* we need at least two frames - one for idle, one for active */
LOG(("Insufficent number of frames in throbber animation!"));
LOG(("(called with %d frames, where 2 is a minimum.)",
frames));
return false;
}
throb = malloc(sizeof(*throb));
if (throb == NULL)
return false;
throb->nframes = frames;
throb->framedata = malloc(sizeof(GdkPixbuf *) * throb->nframes);
if (throb->framedata == NULL) {
free(throb);
return false;
}
for (frame_loop = 0; frame_loop < frames; frame_loop++) {
throb->framedata[frame_loop] = gdk_pixbuf_new_from_file(frame_files[frame_loop], &err);
if (err != NULL) {
LOG(("Error when loading %s: %s (%d)",
frame_files[frame_loop], err->message, err->code));
throb->framedata[frame_loop] = NULL;
errors_when_loading = true;
}
}
if (errors_when_loading == true) {
for (frame_loop = 0; frame_loop < frames; frame_loop++) {
if (throb->framedata[frame_loop] != NULL)
gdk_pixbuf_unref(throb->framedata[frame_loop]);
}
free(throb->framedata);
free(throb);
return false;
}
nsgtk_throbber = throb;
return true;
}
void nsgtk_throbber_finalise(void)
{
int i;
for (i = 0; i < nsgtk_throbber->nframes; i++)
gdk_pixbuf_unref(nsgtk_throbber->framedata[i]);
free(nsgtk_throbber->framedata);
free(nsgtk_throbber);
nsgtk_throbber = NULL;
}