On Thu, Aug 6, 2009 at 17:05, sumit singh<sumit.co...@gmail.com> wrote: > Tomeu, > > Moreover, is it possible to use a hippocanvas surface as a button > image or something like a button or a normal image even, I mean can I > pack a hippocanvas in a vbox or hbox? Sorry, for asking such a basic > question but I don't have any idea about hippocanvas.
It is possible, though I'm not sure you need it in Write. Search for a file called detailedentry.py for an example. Regards, Tomeu > Regards, > sumit > > On Thu, Aug 6, 2009 at 8:28 PM, sumit singh<sumit.co...@gmail.com> wrote: >> Hi Tomeu, >> >> Thanx for your reply. I tried this as well, but doesn't seems to work. >> Here is my code-- http://pastebin.be/20215 , where get_preview2() >> is similar to get_preview fn and it returns in a similar manner. This >> is the get preview2 fn--- http://pastebin.be/20216 >> . The log error can be found at --- http://pastebin.be/20214 . Kindly >> give your suggestions. >> >> Regards, > >> >> On Thu, Aug 6, 2009 at 1:15 PM, Tomeu Vizoso<to...@sugarlabs.org> wrote: >>> On Wed, Aug 5, 2009 at 13:05, sumit singh<sumit.co...@gmail.com> wrote: >>>> Hi Tomeu, >>>> >>>> Thanx for your reply. I tried using the it , but it doesn't seem to >>>> work, it gives an error that the image should be a gdkpixbuf or None. >>>> Here is my code- http://pastebin.be/20184 , isn't it so that while >>>> creating the pixmap on line no15, we are just using the height and >>>> width of the surface and not the surface anywhere. I mean how are we >>>> transferring the data of the image to the pixmap. >>>> Thinking this I also tried this approach but didn't worked---- >>>> http://pastebin.be/20185 . >>>> >>>> Kindly have a look as in where am I doing the mistake. >>> >>> Have written some code based on my earlier pointers, but haven't tested it: >>> >>> # wrap the png data in a "virtual file" >>> import StringIO.StringIO >>> png_file = StringIO.StringIO(preview_data) >>> >>> # create a cairo surface with the png data >>> surface = cairo.ImageSurface.create_from_png(png_file) >>> >>> # create a pixmap with the same dimensions >>> w, h = surface.get_width(), surface.get_height() >>> pixmap = gtk.gdk.Pixmap (None, w, h, 24) >>> >>> # create a cairo graphics context dor drawing into the pixmap >>> cr = pixmap.cairo_create () >>> >>> # paint the surface to the graphics context >>> cr.set_source_surface (surface, 0, 0) >>> cr.paint () >>> >>> # create an image widget and assign the pixmap to it >>> im = gtk.Image() >>> im.set_from_pixmap(pixmap, None) >>> >>> You may want to read a bit about pixmaps, pixbufs, etc. Both in the >>> PyGtk and X11 documentation: >>> >>> http://www.pygtk.org/pygtktutorial/sec-pixmaps.html >>> http://www.pygtk.org/docs/pygtk/class-gdkpixmap.html >>> http://tronche.com/gui/x/xlib/pixmap-and-cursor/pixmap.html >>> >>> HTH, >>> >>> Tomeu >>> >>>> Regards, >>>> sumit >>>> >>>> On Wed, Aug 5, 2009 at 12:33 PM, Tomeu Vizoso<to...@sugarlabs.org> wrote: >>>>> On Wed, Aug 5, 2009 at 03:06, sumit singh<sumit.co...@gmail.com> wrote: >>>>>> Hi all, >>>>>> >>>>>> I would like to ask what is the best way to get a gtk.Image from the >>>>>> data returned by get_preview function of activity.Activity fn of >>>>>> sugar. I want to make an image buttton using this data. Currently, I >>>>>> am doing it by saving the data in a temp file using the tempfile >>>>>> module of sugar and then by loading the image from this file, however, >>>>>> as I will be req to load around 15-20 such images, I can't say how >>>>>> fast the process will end into. Is there a faster method? >>>>>> >>>>>> For your reference , here is the code of how the journal activity uses >>>>>> this data---- http://pastebin.be/20177 , but as I don't want to use >>>>>> hippo canvas, so this method won't work. Kindly give your suggestions. >>>>> >>>>> Sorry, didn't remembered that the journal used hippo to display the >>>>> previews when I recommended you to look at that. >>>>> >>>>> If you get a cairo surface like the journal does, you can draw it to a >>>>> pixmap and then tell a gtk.Image to display it. More details in this >>>>> post (disregard the pixbuf stuff): >>>>> >>>>> http://lethalman.blogspot.com/2009/04/create-pixbuf-from-cairo-surface.html >>>>> >>>>> HTH, >>>>> >>>>> Tomeu >>>>> >>>>>> Regards, >>>>>> sumit >>>>>> >>>>> >>>> >>> >> > _______________________________________________ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel