Features/GTK3/Porting/Record

Some changes

Replace:

def getStringFromPixbuf(pixbuf):
    data = [""]
    pixbuf.save_to_callback(_saveDataToBufferCb, "png", {}, data)
    return base64.b64encode(str(data[0]))


def _saveDataToBufferCb(buf, data):
    data[0] += buf
    return True

With:

def getStringFromPixbuf(pixbuf):
    """Converts a pixbuf in a string."""
  
    # Save_to_bufferv return: (bool, string)
    data = pixbuf.save_to_bufferv('png', [], [])
   
    return base64.b64encode(data[1])

Replace:

thumbImg.save(thumbPath, "jpeg", {"quality":"85"} )

With:

thumbImg.savev(thumbPath, "jpeg", {"quality":"85"} )

Replace:

def load_colored_svg(filename, stroke, fill):
    path = os.path.join(constants.GFX_PATH, filename)
    data = open(path, 'r').read()

    entity = '<!ENTITY fill_color "%s">' % fill
    data = re.sub('<!ENTITY fill_color .*>', entity, data)

    entity = '<!ENTITY stroke_color "%s">' % stroke
    data = re.sub('<!ENTITY stroke_color .*>', entity, data)

    """return rsvg.Handle(data=data).get_pixbuf()"""

With:

def load_colored_svg(filename, stroke, fill):
    """Loads an svg, will change the fill and
    stroke colors and returns the pixbuf."""
   
    path = os.path.join(constants.GFX_PATH, filename)
    data = open(path, 'r').read()

    entity = '<!ENTITY fill_color "%s">' % fill
    data = re.sub('<!ENTITY fill_color .*>', entity, data)

    entity = '<!ENTITY stroke_color "%s">' % stroke
    data = re.sub('<!ENTITY stroke_color .*>', entity, data)

    """return Rsvg.Handle.new_from_data(data.encode('utf-8')).get_pixbuf()"""

Not implement:

super(Record, self).close()

Due to: SL#4345

New Gst.TagList:

Replace:

       taglist = self._get_tags(constants.TYPE_AUDIO)

       if self._audio_pixbuf:
           pixbuf_b64 = utils.getStringFromPixbuf(self._audio_pixbuf)
           taglist[gst.TAG_EXTENDED_COMMENT] = "coverart=" + pixbuf_b64

       vorbis_enc = audioline.get_by_name('audioVorbisenc')
       vorbis_enc.merge_tags(taglist, gst.TAG_MERGE_REPLACE_ALL)

With:

       taglist = self._get_tags(constants.TYPE_AUDIO)
       
       if self._audio_pixbuf:
           pixbuf_b64 = utils.getStringFromPixbuf(self._audio_pixbuf)
           
           taglist.add_value(
               Gst.TagMergeMode.REPLACE,
               Gst.TAG_EXTENDED_COMMENT,
               "coverart=" + pixbuf_b64)
               
       vorbis_enc = audioline.get_by_name('audioVorbisenc')
       vorbis_enc.merge_tags(taglist, Gst.TagMergeMode.REPLACE_ALL)

Replace:

       taglist = self._get_tags(constants.TYPE_VIDEO)
       vorbis_enc = muxline.get_by_name('muxVorbisenc')
       vorbis_enc.merge_tags(taglist, gst.TAG_MERGE_REPLACE_ALL)

With:

       taglist = self._get_tags(constants.TYPE_VIDEO)
       vorbis_enc = muxline.get_by_name('muxVorbisenc')
       vorbis_enc.merge_tags(taglist, Gst.TagMergeMode.REPLACE_ALL)

Replace:

   def _get_tags(self, type):
       tl = gst.TagList()
       tl[gst.TAG_ARTIST] = self.model.get_nickname()
       tl[gst.TAG_COMMENT] = "olpc"
       #this is unfortunately, unreliable
       #record.Record.log.debug("self.ca.metadata['title']->" + str(self.ca.metadata['title']) )
       tl[gst.TAG_ALBUM] = "olpc" #self.ca.metadata['title']
       tl[gst.TAG_DATE] = utils.getDateString(int(time.time()))
       stringType = constants.MEDIA_INFO[type]['istr']
       
       # Translators: photo by photographer, e.g. "Photo by Mary"
       tl[gst.TAG_TITLE] = _('%(type)s by %(name)s') % {'type': stringType,
               'name': self.model.get_nickname()}
       return tl

With:

   def _get_tags(self, type):
       
       taglist = Gst.TagList.new_empty()
       
       taglist.add_value(
           Gst.TagMergeMode.REPLACE,
           Gst.TAG_ARTIST,
           self.model.get_nickname())
           
       taglist.add_value(
           Gst.TagMergeMode.REPLACE,
           Gst.TAG_COMMENT,
           "olpc")
           
       #this is unfortunately, unreliable
       #record.Record.log.debug("self.ca.metadata['title']->" + str(self.ca.metadata['title']) )

       taglist.add_value(
           Gst.TagMergeMode.REPLACE,
           Gst.TAG_ALBUM,
           "olpc") #self.ca.metadata['title']

       taglist.add_value(
           Gst.TagMergeMode.REPLACE,
           Gst.TAG_DATE,
           utils.getDateString(int(time.time())))
           
       stringType = constants.MEDIA_INFO[type]['istr'] #self.ca.metadata['title']
           
       taglist.add_value(
           Gst.TagMergeMode.REPLACE,
           Gst.TAG_TITLE,
           _('%(type)s by %(name)s') % {'type': stringType,
               'name': self.model.get_nickname()})
               
       return taglist

From Pixmap to Pixbuf

When an application fails and you want to close from the corresponding button occurs:

Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/sugar3/activity/activity.py", line 890, in _keep_failed_dialog_response_cb
self.close(skip_save=True)
TypeError: close() got an unexpected keyword argument 'skip_save'
And the activity is not closed, nor can restart sugar as alert reappears again and again, you need to stop.

This error is caused because:

When a class B inherits from class A, and in B is overwritten a function of A, A function is no longer running, but instead runs the function of the class B, even when explicitly call function A from B.

The solution is in using Pixbuf instead of Pixmap:

Replace:

   def _generate_image(self, num):
       w = 55
       h = w
       pixmap = gdk.Pixmap(self.get_window(), w, h, -1)
       ctx = pixmap.cairo_create()
       ctx.rectangle(0, 0, w, h)
       ctx.set_source_rgb(0, 0, 0)
       ctx.fill()

By:

   def _generate_image(self, num):

       w = 55
       h = w
       
       x, y = self.get_property('window').get_position()
       rect = self.get_allocation()
       width, height = rect.width, rect.height
      
       thumb_surface = Gdk.Window.create_similar_surface(
           self.get_property('window'),
           cairo.CONTENT_COLOR,
           width, height)
      
       ctx = cairo.Context(thumb_surface)
       
       Gdk.cairo_set_source_window(
           cairo_context,
           self.get_property('window'),
           x, y)
           
       ctx.paint()
       
       ctx.rectangle(x, y, w, h)
       ctx.set_source_rgb(0, 0, 0)
       ctx.fill()