BBitmap*
SharedBitmap::_CreateBitmapFromResource(int32 size) const
{
BResources resources;
status_t status = get_app_resources(resources);
if (status != B_OK)
return NULL;
size_t dataSize;
const void* data = resources.LoadResource(B_VECTOR_ICON_TYPE, fResourceID,
&dataSize);
if (data != NULL)
return _LoadIconFromBuffer(data, dataSize, size);
data = resources.LoadResource(B_MESSAGE_TYPE, fResourceID, &dataSize);
if (data != NULL)
return _LoadBitmapFromBuffer(data, dataSize);
return 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 */
NSLOG(netsurf, INFO,
"Insufficent number of frames in throbber animation!");
NSLOG(netsurf, INFO,
"(called with %d frames, where 2 is a minimum.)",
frames);
return false;
}
BResources *res = get_app_resources();
if (res == NULL) {
NSLOG(netsurf, INFO, "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) {
NSLOG(netsurf, INFO, "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) {
NSLOG(netsurf, INFO,
"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;
}