Attachment 20951 Details for Bug 18947 – demonstration

demonstration

test_goocairo.py (text/plain), 1.61 KB, created by Gustavo J. A. M. Carneiro on 2008-12-09 03:08:11 UTC

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Creator: Gustavo J. A. M. Carneiro

Created: 2008-12-09 03:08:11 UTC

Size: 1.61 KB

patch

obsolete

>import gtk
>import cairo
>import array
>#import goocanvas
>import weakref
>import gc
>
>def fini(foo):
>    print "data is no more", foo
>
>def create_stipple():
>    color = gtk.gdk.color_parse ("mediumseagreen")
>    
>    stipple_data = array.array('B', [0, 0, 0, 255,   0, 0, 0, 0,
>                                     0, 0, 0, 0,   0, 0, 0, 255])
>    
>    stipple_data[2] = stipple_data[14] = color.red >> 8
>    stipple_data[1] = stipple_data[13] = color.green >> 8
>    stipple_data[0] = stipple_data[12] = color.blue >> 8
>
>    print stipple_data.tolist()
>
>    surface = cairo.ImageSurface.create_for_data (stipple_data,
>                                                  cairo.FORMAT_ARGB32,
>                                                  2, 2, 8)
>    pattern = cairo.SurfacePattern(surface)
>    pattern.set_extend (cairo.EXTEND_REPEAT)
>
>    data = weakref.ref(stipple_data, fini)
>    
>    return pattern
>
># w = gtk.Window()
># w.connect("destroy", gtk.main_quit)
>
># c = goocanvas.Canvas(automatic_bounds = True,
># 		     bounds_from_origin = False,
># 		     bounds_padding = 4.0,
># 		     background_color_rgb = 0xC3C3FF)
>
>print "Creating pattern"
>pattern = create_stipple()
>print "Pattern created"
>
>print "Deleting pattern"
>del pattern
>while gc.collect():
>    pass
>print "Pattern deleted"
>
># root = c.get_root_item()
>
># r = goocanvas.Rect(parent = root,
>#                    x = 90,
>#                    y = 40,
>#                    width =  90,
>#                    height =  60,
>#                    fill_pattern = pattern,
>#                    stroke_color = "black",
>#                    line_width = 4.0)
>
># w.add(c)
>
># w.show_all()
>
># gtk.main()

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Attachments on bug 18947: 20951 | 20954

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