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-rw-r--r--beos/throbber.cpp119
1 files changed, 119 insertions, 0 deletions
diff --git a/beos/throbber.cpp b/beos/throbber.cpp
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+++ b/beos/throbber.cpp
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+/*
+ * Copyright 2008 Fran├žois Revol <mmu_man@users.sourceforge.net>
+ *
+ * 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/>.
+ */
+
+#define __STDBOOL_H__ 1
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+extern "C" {
+#include "utils/log.h"
+}
+#include "beos/throbber.h"
+#include "beos/bitmap.h"
+#include "beos/fetch_rsrc.h"
+
+#include <File.h>
+#include <Resources.h>
+#include <TranslationUtils.h>
+
+struct nsbeos_throbber *nsbeos_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 nsbeos_throbber_initialise_from_png(const int frames, ...)
+{
+ va_list filenames;
+ struct nsbeos_throbber *throb; /**< structure we generate */
+ bool errors_when_loading = false; /**< true if a frame failed */
+
+ 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;
+ }
+
+ BResources *res = get_app_resources();
+ if (res == NULL) {
+ LOG(("Can't find resources for throbber!"));
+ return false;
+ }
+
+ throb = (struct nsbeos_throbber *)malloc(sizeof(throb));
+ throb->nframes = frames;
+ throb->framedata = (BBitmap **)malloc(sizeof(BBitmap *) * throb->nframes);
+
+ va_start(filenames, frames);
+
+ for (int i = 0; i < frames; i++) {
+ const char *fn = va_arg(filenames, const char *);
+ const void *data;
+ size_t size;
+ data = res->LoadResource('data', fn, &size);
+ throb->framedata[i] = NULL;
+ if (!data) {
+ LOG(("Error when loading resource %s", fn));
+ errors_when_loading = true;
+ continue;
+ }
+ BMemoryIO mem(data, size);
+ throb->framedata[i] = BTranslationUtils::GetBitmap(&mem);
+ if (throb->framedata[i] == NULL) {
+ LOG(("Error when loading %s: GetBitmap() returned NULL", fn));
+ errors_when_loading = true;
+ }
+ }
+
+ va_end(filenames);
+
+ if (errors_when_loading == true) {
+ for (int i = 0; i < frames; i++) {
+ delete throb->framedata[i];
+ }
+
+ free(throb->framedata);
+ free(throb);
+
+ return false;
+ }
+
+ 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;
+}