From 45e053104de9671c06a732a8e4dc172db2df8a56 Mon Sep 17 00:00:00 2001 From: Gonzalo Odiard Date: Mon, 16 Aug 2010 18:48:20 -0300 Subject: [PATCH] Fix #1106 No preview in Journal for downloaded image --- downloadmanager.py | 35 +++++++++++++++++++++++++++++++++++ 1 files changed, 35 insertions(+), 0 deletions(-) diff --git a/downloadmanager.py b/downloadmanager.py index 3eec649..0538049 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 +193,46 @@ class Download: sniffed_mime_type = mime.get_for_file(self._target_file.path) self.dl_jobject.metadata['mime_type'] = sniffed_mime_type + if self._mime_type in ('image/bmp','image/gif','image/jpeg','image/png','image/tiff'): + self.dl_jobject.metadata['preview'] = self.__get_preview_image() + else: + self.dl_jobject.metadata['preview'] = '' + 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): + pixbuf = gtk.gdk.pixbuf_new_from_file(self._target_file.path) + width, height = pixbuf.get_width(), pixbuf.get_height() + + preview_width = style.zoom(300) + preview_height = style.zoom(225) + + if (width > preview_width) or (height > preview_height): + scale_x = float(width) / preview_width + scale_y = float(height) / preview_height + scale = max(scale_x,scale_y) + + pixbuf = pixbuf.scale_simple(float(width) / scale, height / scale, + gtk.gdk.INTERP_BILINEAR) + pixbuf2 = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,pixbuf.get_has_alpha(),8,preview_width,preview_height) + pixbuf2.fill(0xffffffff) + margin_x = (preview_width - pixbuf.get_width()) / 2 + margin_y = (preview_height - pixbuf.get_height()) / 2 + + pixbuf.copy_area(0,0,pixbuf.get_width(),pixbuf.get_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