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authorFran├žois Revel <mmu_man@netsurf-browser.org>2008-06-03 19:07:09 +0000
committerFran├žois Revel <mmu_man@netsurf-browser.org>2008-06-03 19:07:09 +0000
commit90a15a9753a4e882a4a0d7ce04fdae9ec5d29683 (patch)
treeb4c7f4651ce7f2c0e48b9eb4a6c91ffd56f5a1da /beos/beos_throbber.cpp
parent86e74c970bb29c0a31d0235cf6b9ab261fffbad5 (diff)
downloadnetsurf-90a15a9753a4e882a4a0d7ce04fdae9ec5d29683.tar.gz
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The BeOS-specific part of the BeOS (and Haiku) port, modeled mostly from the GTK version.
Some fixes are needed elsewhere but non-obvious ones I'll post on the mailing list for discussion. Currently it opens windows with a toolbar, url and status bar, a (yet empty) menu bar. Rendering seems to work including scrolling at scale 1 (other non-tested). framesets seems broken though. svn path=/trunk/netsurf/; revision=4253
Diffstat (limited to 'beos/beos_throbber.cpp')
-rw-r--r--beos/beos_throbber.cpp144
1 files changed, 144 insertions, 0 deletions
diff --git a/beos/beos_throbber.cpp b/beos/beos_throbber.cpp
new file mode 100644
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+++ b/beos/beos_throbber.cpp
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+/*
+ * Copyright 2006 Rob Kendrick <rjek@rjek.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>
+extern "C" {
+#include "utils/log.h"
+#include "image/gifread.h"
+}
+#include "beos/beos_throbber.h"
+#include "beos/beos_bitmap.h"
+
+struct nsbeos_throbber *nsbeos_throbber = NULL;
+
+bool nsbeos_throbber_initialise(const char *fn)
+{
+ /* disect the GIF provided by filename in *fn into a series of
+ * BBitmap for use later.
+ */
+ struct gif_animation *gif; /**< structure for gifread.c */
+ struct nsbeos_throbber *throb; /**< structure we generate */
+ int i;
+
+ FILE *fh = fopen(fn, "rb");
+
+ if (fh == NULL) {
+ LOG(("Unable to open throbber image '%s' for reading!", fn));
+ return false;
+ }
+
+ gif = (struct gif_animation *)malloc(sizeof(struct gif_animation));
+ throb = (struct nsbeos_throbber *)malloc(sizeof(struct nsbeos_throbber));
+
+ /* discover the size of the data file. */
+ fseek(fh, 0, SEEK_END);
+ gif->buffer_size = ftell(fh);
+ fseek(fh, 0, SEEK_SET);
+
+ /* allocate a block of sufficient size, and load the data in. */
+ gif->gif_data = (unsigned char *)malloc(gif->buffer_size);
+ fread(gif->gif_data, gif->buffer_size, 1, fh);
+ fclose(fh);
+
+ /* set current position within GIF file to beginning, in order to
+ * signal to gifread that we're brand new.
+ */
+ gif->buffer_position = 0;
+
+ /* initialise the gif_animation structure. */
+ switch (gif_initialise(gif))
+ {
+ case GIF_INSUFFICIENT_FRAME_DATA:
+ case GIF_FRAME_DATA_ERROR:
+ case GIF_INSUFFICIENT_DATA:
+ case GIF_DATA_ERROR:
+ LOG(("GIF image '%s' appears invalid!", fn));
+ free(gif->gif_data);
+ free(gif);
+ free(throb);
+ return false;
+ break;
+ case GIF_INSUFFICIENT_MEMORY:
+ LOG(("Ran out of memory decoding GIF image '%s'!", fn));
+ free(gif->gif_data);
+ free(gif);
+ free(throb);
+ return false;
+ break;
+ }
+
+ throb->nframes = gif->frame_count;
+
+ if (throb->nframes < 2)
+ {
+ /* we need at least two frames - one for idle, one for active */
+ LOG(("Insufficent number of frames in throbber image '%s'!",
+ fn));
+ LOG(("(GIF contains %d frames, where 2 is a minimum.)",
+ throb->nframes));
+ free(gif->gif_data);
+ free(gif);
+ free(throb);
+ return false;
+ }
+
+ throb->framedata = (BBitmap **)malloc(sizeof(BBitmap *)
+ * throb->nframes);
+
+ /* decode each frame in turn, extracting the struct bitmap * for each,
+ * and put that in our array of frames.
+ */
+ for (i = 0; i < throb->nframes; i++)
+ {
+ gif_decode_frame(gif, i);
+ throb->framedata[i] = new BBitmap(
+ nsbeos_bitmap_get_primary(gif->frame_image));
+ }
+
+ gif_finalise(gif);
+ free(gif->gif_data);
+ free(gif);
+
+ /* debug code: save out each frame as a PNG to make sure decoding is
+ * working correctly.
+
+ for (i = 0; i < throb->nframes; i++) {
+ char fname[20];
+ sprintf(fname, "frame%d.png", i);
+ gdk_pixbuf_save(throb->framedata[i], fname, "png", NULL, NULL);
+ }
+ */
+
+ nsbeos_throbber = throb;
+
+ return true;
+}
+
+void nsbeos_throbber_finalise(void)
+{
+ int i;
+
+ for (i = 0; i < nsbeos_throbber->nframes; i++)
+ delete nsbeos_throbber->framedata[i];
+
+ free(nsbeos_throbber->framedata);
+ free(nsbeos_throbber);
+
+ nsbeos_throbber = NULL;
+}