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Features/GTK3/Porting/Record: Difference between revisions

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


'''Replace:'''


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


'''With:'''
'''By:'''


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


'''Replace:'''
'''Replace:'''


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


'''With:'''
'''By:'''


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


'''Replace:'''
'''Replace:'''


def load_colored_svg(filename, stroke, fill):
def load_colored_svg(filename, stroke, fill):
    path = os.path.join(constants.GFX_PATH, filename)
 
    data = open(path, 'r').read()
    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 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)
    entity = '<!ENTITY stroke_color "%s">' % stroke
    data = re.sub('<!ENTITY stroke_color .*>', entity, data)
    """return rsvg.Handle(data=data).get_pixbuf()"""
 
    return rsvg.Handle(data=data).get_pixbuf()


'''With:'''
'''By:'''


def load_colored_svg(filename, stroke, fill):
def load_colored_svg(filename, stroke, fill):
    """Loads an svg, will change the fill and
    """Loads an svg, will change the fill and
    stroke colors and returns the pixbuf."""
    stroke colors and returns the pixbuf."""
      
      
    path = os.path.join(constants.GFX_PATH, filename)
    path = os.path.join(constants.GFX_PATH, filename)
    data = open(path, 'r').read()
    data = open(path, 'r').read()
 
    entity = '<!ENTITY fill_color "%s">' % fill
    entity = '<!ENTITY fill_color "%s">' % fill
    data = re.sub('<!ENTITY fill_color .*>', entity, data)
    data = re.sub('<!ENTITY fill_color .*>', entity, data)
 
    entity = '<!ENTITY stroke_color "%s">' % stroke
    entity = '<!ENTITY stroke_color "%s">' % stroke
    data = re.sub('<!ENTITY stroke_color .*>', entity, data)
    data = re.sub('<!ENTITY stroke_color .*>', entity, data)
 
    """return Rsvg.Handle.new_from_data(data.encode('utf-8')).get_pixbuf()"""
    return Rsvg.Handle.new_from_data(data.encode('utf-8')).get_pixbuf()


'''Not implement:'''
'''Not implement:'''


super(Record, self).close()
super(Record, self).close()
 
'''Due to:''' [http://bugs.sugarlabs.org/ticket/4345]


Due to: [http://bugs.sugarlabs.org/ticket/4345 SL#4345]
When an application fails and you want to close from the corresponding button occurs:


New Gst.TagList:
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 by the following:
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.
 
'''Stop using Pixmap instead use Pixbuf:'''


'''Replace:'''
'''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()
'''New Gst.TagList:
Replace:'''


         taglist = self._get_tags(constants.TYPE_AUDIO)
         taglist = self._get_tags(constants.TYPE_AUDIO)
Line 81: Line 136:
         vorbis_enc.merge_tags(taglist, gst.TAG_MERGE_REPLACE_ALL)
         vorbis_enc.merge_tags(taglist, gst.TAG_MERGE_REPLACE_ALL)


'''With:'''
'''By:'''


         taglist = self._get_tags(constants.TYPE_AUDIO)
         taglist = self._get_tags(constants.TYPE_AUDIO)
Line 102: Line 157:
         vorbis_enc.merge_tags(taglist, gst.TAG_MERGE_REPLACE_ALL)
         vorbis_enc.merge_tags(taglist, gst.TAG_MERGE_REPLACE_ALL)


'''With:'''
'''By:'''


         taglist = self._get_tags(constants.TYPE_VIDEO)
         taglist = self._get_tags(constants.TYPE_VIDEO)
Line 111: Line 166:


     def _get_tags(self, type):
     def _get_tags(self, type):
         tl = gst.TagList()
         tl = gst.TagList()
         tl[gst.TAG_ARTIST] = self.model.get_nickname()
         tl[gst.TAG_ARTIST] = self.model.get_nickname()
         tl[gst.TAG_COMMENT] = "olpc"
         tl[gst.TAG_COMMENT] = "olpc"
        #this is unfortunately, unreliable
         tl[gst.TAG_ALBUM] = "olpc"
        #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()))
         tl[gst.TAG_DATE] = utils.getDateString(int(time.time()))
         stringType = constants.MEDIA_INFO[type]['istr']
         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,
         tl[gst.TAG_TITLE] = _('%(type)s by %(name)s') % {'type': stringType,
                 'name': self.model.get_nickname()}
                 'name': self.model.get_nickname()}
         return tl
         return tl


'''With:'''
'''By:'''


     def _get_tags(self, type):
     def _get_tags(self, type):
Line 140: Line 193:
             Gst.TAG_COMMENT,
             Gst.TAG_COMMENT,
             "olpc")
             "olpc")
           
        #this is unfortunately, unreliable
        #record.Record.log.debug("self.ca.metadata['title']->" + str(self.ca.metadata['title']) )


         taglist.add_value(
         taglist.add_value(
Line 154: Line 204:
             utils.getDateString(int(time.time())))
             utils.getDateString(int(time.time())))
              
              
         stringType = constants.MEDIA_INFO[type]['istr'] #self.ca.metadata['title']
         stringType = constants.MEDIA_INFO[type]['istr']
              
              
         taglist.add_value(
         taglist.add_value(
Line 164: Line 214:
         return taglist
         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:==
GObject.get_data() and set_data() are deprecated. Use normal Python attributes instead
When a class B inherits from class A, and
button.set_data('handler-ids', (clicked_handler, remove_handler, clipboard_handler))
in B is overwritten a function of A,
 
A function is no longer running,
 
but instead runs the function of the class B,
'''No joint implementation:'''
even when explicitly call function A from B.
 
self.connect('size_allocate', self._size_allocate_cb)
def _size_allocate_cb(self, widget, requisition):
. . .
 
and


def do_size_allocate(self, allocation):
. . .


The solution is in using Pixbuf instead of Pixmap:


'''Replace:'''
'''Replace:'''


    def _generate_image(self, num):
taglist.add_value(  
        w = 55
      Gst.TagMergeMode.REPLACE,  
        h = w
      Gst.TAG_DATE,
        pixmap = gdk.Pixmap(self.get_window(), w, h, -1)
      utils.getDateString(int(time.time())))
        ctx = pixmap.cairo_create()
 
        ctx.rectangle(0, 0, w, h)
def getDateString( when ):
        ctx.set_source_rgb(0, 0, 0)
   
        ctx.fill()
    return strftime( "%c", time.localtime(when) )


'''By:'''
'''By:'''
    def _generate_image(self, num):
 
datetime = GLib.DateTime.new_now_local()
date = GLib.Date()
date.set_day(datetime.get_day_of_month())
date.set_month(datetime.get_month())
date.set_year(datetime.get_year())
   
   
        w = 55
taglist.add_value(
        h = w
      Gst.TagMergeMode.REPLACE,
       
      Gst.TAG_DATE,
        x, y = self.get_property('window').get_position()
      date)
        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()
Retrieved from "https://wiki.sugarlabs.org/go/Features/GTK3/Porting/Record"