Difference between revisions of "Features/GTK3/Porting/Record"

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< Features‎ | GTK3‎ | Porting
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(One intermediate revision by the same user not shown)
Line 1: Line 1:
 +
'''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
 +
 +
'''By:'''
 +
 +
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"} )
 +
 +
'''By:'''
 +
 +
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()
 +
 +
'''By:'''
 +
 +
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:''' [http://bugs.sugarlabs.org/ticket/4345]
 +
 +
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 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:'''
 +
 +
    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)
 +
 +
        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)
 +
 +
'''By:'''
 +
 +
        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)
 +
 +
'''By:'''
 +
 +
        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"
 +
        tl[gst.TAG_ALBUM] = "olpc"
 +
        tl[gst.TAG_DATE] = utils.getDateString(int(time.time()))
 +
        stringType = constants.MEDIA_INFO[type]['istr']
 +
       
 +
        tl[gst.TAG_TITLE] = _('%(type)s by %(name)s') % {'type': stringType,
 +
                'name': self.model.get_nickname()}
 +
        return tl
 +
 +
'''By:'''
 +
 +
    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")
 +
 +
        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']
 +
           
 +
        taglist.add_value(
 +
            Gst.TagMergeMode.REPLACE,
 +
            Gst.TAG_TITLE,
 +
            _('%(type)s by %(name)s') % {'type': stringType,
 +
                'name': self.model.get_nickname()})
 +
               
 +
        return taglist
 +
 +
 +
GObject.get_data() and set_data() are deprecated. Use normal Python attributes instead
 +
button.set_data('handler-ids', (clicked_handler, remove_handler, clipboard_handler))
 +
 +
 +
'''No joint implementation:'''
 +
 +
self.connect('size_allocate', self._size_allocate_cb)
 +
def _size_allocate_cb(self, widget, requisition):
 +
. . .
 +
 +
and
 +
 +
def do_size_allocate(self, allocation):
 +
. . .
 +
 +
 +
'''Replace:'''
 +
 +
taglist.add_value(
 +
      Gst.TagMergeMode.REPLACE,
 +
      Gst.TAG_DATE,
 +
      utils.getDateString(int(time.time())))
 +
 +
def getDateString( when ):
 +
   
 +
    return strftime( "%c", time.localtime(when) )
 +
 +
'''By:'''
 +
 +
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())
 +
 +
taglist.add_value(
 +
      Gst.TagMergeMode.REPLACE,
 +
      Gst.TAG_DATE,
 +
      date)

Latest revision as of 08:23, 23 December 2012

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

By:

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"} )

By:

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()

By:

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: [1]

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 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: 

   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)

       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)

By: 

       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)

By: 

       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"
       tl[gst.TAG_ALBUM] = "olpc"
       tl[gst.TAG_DATE] = utils.getDateString(int(time.time()))
       stringType = constants.MEDIA_INFO[type]['istr']
       
       tl[gst.TAG_TITLE] = _('%(type)s by %(name)s') % {'type': stringType,
               'name': self.model.get_nickname()}
       return tl

By: 

   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")

       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']
           
       taglist.add_value(
           Gst.TagMergeMode.REPLACE,
           Gst.TAG_TITLE,
           _('%(type)s by %(name)s') % {'type': stringType,
               'name': self.model.get_nickname()})
               
       return taglist


GObject.get_data() and set_data() are deprecated. Use normal Python attributes instead button.set_data('handler-ids', (clicked_handler, remove_handler, clipboard_handler))


No joint implementation:

self.connect('size_allocate', self._size_allocate_cb) def _size_allocate_cb(self, widget, requisition): . . . 

and

def do_size_allocate(self, allocation): . . .


Replace:

taglist.add_value( 

      Gst.TagMergeMode.REPLACE, 
      Gst.TAG_DATE, 
      utils.getDateString(int(time.time())))

def getDateString( when ): 

   return strftime( "%c", time.localtime(when) )

By:

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())

taglist.add_value( 

     Gst.TagMergeMode.REPLACE,
     Gst.TAG_DATE,
     date)
Retrieved from "https://wiki.sugarlabs.org/index.php?title=Features/GTK3/Porting/Record&oldid=85055"