Attachment 37883 Details for Bug 29582 – Example script demonstrating the issue with file objects

Example script demonstrating the issue with file objects

pycairo_ex.py (text/x-python), 1.18 KB, created by rei4dan on 2010-08-15 03:28:29 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: rei4dan

Created: 2010-08-15 03:28:29 UTC

Size: 1.18 KB

patch

obsolete

>#!/usr/bin/env python
># -*- coding: utf-8 -*-
>
>import math
>import cairo
>
>WIDTH, HEIGHT = 256, 256
>
>#surface = cairo.ImageSurface (cairo.FORMAT_ARGB32, WIDTH, HEIGHT)
>f = open("example.pdf","w")
>#surface = cairo.PDFSurface ("example.pdf", WIDTH, HEIGHT)
>surface = cairo.PDFSurface (f, WIDTH, HEIGHT)
>ctx = cairo.Context (surface)
>
>ctx.scale (WIDTH, HEIGHT) # Normalizing the canvas
>
>pat = cairo.LinearGradient (0.0, 0.0, 0.0, 1.0)
>pat.add_color_stop_rgba (1, 0.7, 0, 0, 0.5) # First stop, 50% opacity
>pat.add_color_stop_rgba (0, 0.9, 0.7, 0.2, 1) # Last stop, 100% opacity
>
>ctx.rectangle (0, 0, 1, 1) # Rectangle(x0, y0, x1, y1)
>ctx.set_source (pat)
>ctx.fill ()
>
>ctx.translate (0.1, 0.1) # Changing the current transformation matrix
>
>ctx.move_to (0, 0)
>ctx.arc (0.2, 0.1, 0.1, -math.pi/2, 0) # Arc(cx, cy, radius, start_angle, stop_angle)
>ctx.line_to (0.5, 0.1) # Line to (x,y)
>ctx.curve_to (0.5, 0.2, 0.5, 0.4, 0.2, 0.8) # Curve(x1, y1, x2, y2, x3, y3)
>ctx.close_path ()
>
>ctx.set_source_rgb (0.3, 0.2, 0.5) # Solid color
>ctx.set_line_width (0.02)
>ctx.stroke ()
>
>#surface.write_to_png ("example.png") # Output to PNG
>#surface.show_page()
>surface.finish()
>surface.flush()

Actions: View

Attachments on bug 29582: 37883 | 37884 | 37885 | 38680

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.