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„ Z e d j o e ƒ n d S( sÿ Images
GtkImage is used to display an image; the image can be in a number of formats.
Typically, you load an image into a GdkPixbuf, then display the pixbuf.
This demo code shows some of the more obscure cases, in the simple case a call
to gtk_image_new_from_file() is all you need.
If you want to put image data in your program as a C variable, use the
make-inline-pixbuf program that comes with GTK+. This way you won't need to
depend on loading external files, your application binary can be self-contained.Nt imagess
alphatest.pngs gtk-logo-rgb.gifs floppybuddy.gifc C s* | i ƒ } | i d ƒ | i | ƒ d S( Ni ( t loadert
get_pixbuft pixbuft fillt imaget set_from_pixbuf( R R R ( ( t" /usr/lib/pygtk/2.0/demos/images.pyt progressive_prepared_callback s
c C s | i ƒ d S( sŠ We know the pixbuf inside the GtkImage has changed, but the image
itself doesn't know this; so queue a redraw. If we wanted to be
really efficient, we could use a drawing area or something
instead of a GtkImage, so we could control the exact position of
the pixbuf on the display, then we could queue a draw for only
the updated area of the image.
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t i ƒ S( N( t gtkt main_quit( t w( ( R t <lambda>4 s i s <u>Image loaded from a file</u>i f0.5s1 Unable to open image file 'gtk-logo-rgb.gif':
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set_screent parentt
get_screent AttributeErrort connectt cleanup_callbackt set_titlet __class__t __name__t set_border_widtht VBoxt Falset vboxt addt Labelt labelt
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pack_startt Framet framet set_shadow_typet SHADOW_INt Alignmentt alignt ImageR t gdkt pixbuf_new_from_filet
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c C s t i d | i | ƒ | _ d S( s„ This is obviously totally contrived(we slow down loading
on purpose to show how incremental loading works).
The real purpose of incremental loading is the case where
you are reading data from a slow source such as the network.
The timeout simply simulates a slow data source by inserting
pauses in the reading process.
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