void pdfapp_open_progressive(pdfapp_t *app, char *filename, int reload, int bps)
{
fz_context *ctx = app->ctx;
char *password = "";
fz_try(ctx)
{
fz_register_document_handlers(ctx);
#ifdef HAVE_CURL
if (!strncmp(filename, "http://", 7))
{
app->stream = fz_stream_from_curl(ctx, filename, pdfapp_more_data, app);
while (1)
{
fz_try(ctx)
{
fz_seek(ctx, app->stream, 0, SEEK_SET);
app->doc = fz_open_document_with_stream(ctx, filename, app->stream);
}
fz_catch(ctx)
{
if (fz_caught(ctx) == FZ_ERROR_TRYLATER)
{
pdfapp_warn(app, "not enough data to open yet");
continue;
}
fz_rethrow(ctx);
}
break;
}
}
else
#endif
if (bps == 0)
HRESULT MuPDFDoc::InitDocument(unsigned char *buffer, int bufferLen, const char *mimeType)
{
fz_stream *stream = OpenStream(buffer, bufferLen);
if (!stream)
{
return E_OUTOFMEMORY;
}
else
{
fz_try(m_context)
{
m_document = fz_open_document_with_stream(m_context, mimeType, stream);
m_outline = fz_load_outline(m_document);
//AlertsInit();
}
fz_always(m_context)
{
fz_close(stream);
}
fz_catch(m_context)
{
return E_INVALIDARG;
}
return S_OK;
}
}
void ViewerWidget::load(const QByteArray &data)
{
scene->clear();
QList<QGraphicsItem *> items;
QPixmap pixmap;
if (pixmap.loadFromData(data)) {
items << new QGraphicsPixmapItem(pixmap);
}
else if (data.startsWith("%PDF")) {
fz_stream *stream = fz_open_memory(context, (unsigned char *)data.constData(), data.length());
fz_document *doc = fz_open_document_with_stream(context, ".pdf", stream);
fz_close(stream);
int pagecount = fz_count_pages(doc);
for (int i = 0; i < pagecount; i++) {
fz_page *page = fz_load_page(doc, i);
fz_rect bounds;
fz_bound_page(doc, page, &bounds);
fz_display_list *list = fz_new_display_list(context);
fz_device *dev = fz_new_list_device(context, list);
fz_run_page(doc, page, dev, &fz_identity, NULL);
fz_free_device(dev);
fz_free_page(doc, page);
PageItem *item = new PageItem(context, list, bounds.x1 - bounds.x0, bounds.y1 - bounds.y0);
item->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
items << item;
}
fz_close_document(doc);
} else {
scene->setSceneRect(0, 0, 0, 0);
return;
}
int top = 0;
QPen outline(Qt::lightGray, 2, Qt::SolidLine, Qt::SquareCap, Qt::MiterJoin);
outline.setCosmetic(true);
foreach (QGraphicsItem *item, items) {
QGraphicsRectItem *rim = new QGraphicsRectItem(item->boundingRect());
item->setPos(0, top);
rim->setPos(0, top);
rim->setPen(outline);
rim->setBrush(Qt::NoBrush);
scene->addItem(rim);
scene->addItem(item);
top += item->boundingRect().height() + SPACING;
}
