From: Gonzalo Odiard <godi...@sugarlabs.org> --- downloadmanager.py | 32 ++++++++++++++++++++++++++++++++ 1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/downloadmanager.py b/downloadmanager.py index 3eec649..24d3911 100644 --- a/downloadmanager.py +++ b/downloadmanager.py @@ -36,6 +36,7 @@ from sugar import profile from sugar import mime from sugar.graphics.alert import Alert, TimeoutAlert from sugar.graphics.icon import Icon +from sugar.graphics import style from sugar.activity import activity # #3903 - this constant can be removed and assumed to be 1 when dbus-python @@ -192,12 +193,43 @@ class Download: sniffed_mime_type = mime.get_for_file(self._target_file.path) self.dl_jobject.metadata['mime_type'] = sniffed_mime_type + pixbuf_mime_types = [] + for pixbuf_format in gtk.gdk.pixbuf_get_formats(): + pixbuf_mime_types.extend(pixbuf_format['mime_types']) + + if self._mime_type in pixbuf_mime_types: + self.dl_jobject.metadata['preview'] = self._get_preview_image() + datastore.write(self.dl_jobject, transfer_ownership=True, reply_handler=self._internal_save_cb, error_handler=self._internal_save_error_cb, timeout=360 * DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND) + def _get_preview_image(self): + preview_width, preview_height = style.zoom(300), style.zoom(225) + + pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(self._target_file.path, preview_width, preview_height) + width, height = pixbuf.get_width(), pixbuf.get_height() + + pixbuf2 = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, pixbuf.get_has_alpha(), + pixbuf.get_bits_per_sample(), preview_width, preview_height) + + OPAQUE_WHITE = 0xffffffff + pixbuf2.fill(OPAQUE_WHITE) + + margin_x, margin_y = (preview_width - width) / 2, (preview_height - height) / 2 + + pixbuf.copy_area(0, 0, width, height, pixbuf2, margin_x, margin_y) + + preview_data = [] + def save_func(buf, data): + data.append(buf) + + pixbuf2.save_to_callback(save_func, 'png', user_data=preview_data) + preview_data = ''.join(preview_data) + return dbus.ByteArray(preview_data) + def __start_response_cb(self, alert, response_id): global _active_downloads if response_id is gtk.RESPONSE_CANCEL: -- 1.7.2.2 _______________________________________________ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel