mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2026-03-07 04:00:31 +01:00
123 lines
3.3 KiB
Text
123 lines
3.3 KiB
Text
Cairo - Multi-platform 2D graphics library
|
|
http://cairographics.org
|
|
|
|
What is cairo
|
|
=============
|
|
Cairo is a 2D graphics library with support for multiple output
|
|
devices. Currently supported output targets include the X Window
|
|
System, OpenGL, and win32 as well as image buffers and PostScript and
|
|
PDF files.
|
|
|
|
Cairo is designed to produce consistent output on all output media
|
|
while taking advantage of display hardware acceleration when available
|
|
(eg. through the X Render Extension).
|
|
|
|
The cairo API provides operations similar to the drawing operators of
|
|
PostScript and PDF. Operations in cairo including stroking and filling
|
|
cubic Bézier splines, transforming and compositing translucent images,
|
|
and antialiased text rendering. All drawing operations can be scaled,
|
|
rotated, or transformed through any other affine transformation.
|
|
|
|
Cairo has been designed to let you draw anything you want in a modern
|
|
2D graphical user interface. At the same time, the cairo API has been
|
|
designed to be as easy to learn and fun to use as possible. If you're
|
|
not having fun while programming with cairo, then we have failed
|
|
somewhere---let us know and we'll try to fix it next time around.
|
|
|
|
Cairo is free software and is available to be redistributed and/or
|
|
modified under the terms of either the GNU Lesser General Public
|
|
License (LGPL) version 2.1 or the Mozilla Public License (MPL) version
|
|
1.1.
|
|
|
|
Where to get more information about cairo
|
|
=========================================
|
|
The primary source of information about cairo is:
|
|
|
|
http://cairographics.org/
|
|
|
|
The latest releases of cairo can be found at:
|
|
|
|
http://cairographics.org/releases
|
|
|
|
Snapshots of in-developmenent versions of cairo:
|
|
|
|
http://cairographics.org/snapshots
|
|
|
|
The programming manual for using cairo:
|
|
|
|
http://cairographics.org/manual
|
|
|
|
Mailing lists for contacting cairo users and developers:
|
|
|
|
http://cairographics.org/lists
|
|
|
|
Answers to some frequently asked questions about cairo:
|
|
|
|
http://cairographics.org/FAQ
|
|
|
|
Dependencies
|
|
============
|
|
The set of libraries needed to compile cairo depends on which backends
|
|
are enabled when cairo is configured. Here are the dependencies for
|
|
each backend:
|
|
|
|
Surface backends:
|
|
|
|
image backend
|
|
-------------
|
|
no dependencies
|
|
|
|
glitz backend
|
|
-------------
|
|
glitz >= 0.4.4 http://freedesktop.org/Software/glitz
|
|
|
|
pdf backend
|
|
-----------
|
|
freetype >= 2.1.4 http://freetype.org
|
|
zlib http://www.gzip.org/zlib
|
|
|
|
postscript backend
|
|
------------------
|
|
freetype >= 2.1.4 http://freetype.org
|
|
zlib http://www.gzip.org/zlib
|
|
|
|
quartz backend
|
|
--------------
|
|
|
|
win32 backend
|
|
-------------
|
|
|
|
xcb backend
|
|
-----------
|
|
XCB http://xcb.freedesktop.org
|
|
|
|
xlib backend
|
|
------------
|
|
Xrender >= 0.6 http://freedesktop.org/Software/xlibs
|
|
|
|
Font backends:
|
|
|
|
freetype font backend
|
|
---------------------
|
|
freetype >= 2.1.4 http://freetype.org
|
|
fontconfig http://fontconfig.org
|
|
|
|
win32 font backend
|
|
------------------
|
|
|
|
atsui font backend
|
|
------------------
|
|
|
|
Compiling
|
|
=========
|
|
See the INSTALL document for build instructions.
|
|
|
|
History
|
|
=======
|
|
Cairo was originally developed by Carl Worth <cworth@cworth.org> and
|
|
Keith Packard <keithp@keithp.com>. Many thanks are due to Lyle Ramshaw
|
|
without whose patient help our ignorance would be much more apparent.
|
|
|
|
Since the original development, many more people have contributed to
|
|
cairo. See the AUTHORS files for as complete a list as we've been able
|
|
to compile so far.
|