Attachment 112980 Details for Bug 88878 – Demo showing the issue.

Demo showing the issue.

cairo_gradients.py (text/plain), 1.25 KB, created by Thibault Saunier on 2015-01-30 16:33:53 UTC

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Creator: Thibault Saunier

Created: 2015-01-30 16:33:53 UTC

Size: 1.25 KB

patch

obsolete

>#!/usr/bin/python
>
>import cairo
>import sys
>
>from gi.repository import Gtk
>
>
>class Example(Gtk.Window):
>
>    def __init__(self, width):
>        super(Example, self).__init__()
>        self._width = width
>        self.init_ui()
>
>    def init_ui(self):
>
>        darea = Gtk.DrawingArea()
>        darea.connect("draw", self.on_draw)
>        self.add(darea)
>
>        self.set_title("Linear gradients")
>        self.resize(340, 390)
>        self.set_position(Gtk.WindowPosition.CENTER)
>        self.connect("delete-event", Gtk.main_quit)
>        self.show_all()
>
>    def on_draw(self, wid, cr):
>        gradient = cairo.LinearGradient(0.500000, 0.000000, 0.500000, 1.000000)
>
>        gradient.add_color_stop_rgba(0.0, 0.105882, 0.180392, 0.054902, 1.000000)
>        gradient.add_color_stop_rgba(1.000000, 0.286275, 0.423529, 0.129412, 1.000000)
>
>        cr.scale(self._width, 390)
>
>        cr.rectangle(0, 0, 1, 1)
>        cr.set_source(gradient)
>        cr.fill()
>
>def main(width):
>
>    Example(width)
>    Gtk.main()
>
>
>if __name__ == "__main__":
>    print("Pass 'work' as first argument to make it working, ie. try to render a gradient with width == 131071 instead of 131072")
>
>    width = 131072
>    if len(sys.argv) == 2 and sys.argv[1] == "work":
>        width = 131071
>    main(width)

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Attachments on bug 88878: 112980

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