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Big update in preparation for 1.0.
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Carl Worth
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2005-08-23 Carl Worth <cworth@cworth.org>
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* README: Big update in preparation for 1.0.
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2005-08-23 Carl Worth <cworth@cworth.org>
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* AUTHORS: Added several names to the AUTHORS file (since
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2005-01-24):
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149
README
149
README
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Cairo - Multi-platform 2D graphics library
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http://cairographics.org
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Compiling
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---------
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See the INSTALL document for build instructions.
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What is cairo
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=============
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Cairo is a 2D graphics library with support for multiple output
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devices. Currently supported output targets include the X Window
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System, OpenGL, and win32 as well as image buffers and PostScript and
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PDF files.
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Description
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-----------
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Cairo is a vector graphics library with cross-device output
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support. Currently supported output targets include the X Window
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System and in-memory image buffers. PostScript and PDF file output is
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planned. Cairo is designed to produce identical output on all output
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media while taking advantage of display hardware acceleration when
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available (eg. through the X Render Extension).
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Cairo is designed to produce consistent output on all output media
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while taking advantage of display hardware acceleration when available
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(eg. through the X Render Extension).
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Cairo provides a stateful user-level API with capabilities similar to
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the PDF 1.4 imaging model. Cairo provides operations including
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stroking and filling Bezier cubic splines, transforming and
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compositing translucent images, and antialiased text rendering.
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The cairo API provides operations similar to the drawing operators of
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PostScript and PDF. Operations in cairo including stroking and filling
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cubic Bézier splines, transforming and compositing translucent images,
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and antialiased text rendering. All drawing operations can be scaled,
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rotated, or transformed through any other affine transformation.
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Cairo was once named Xr, (or Xr/Xc), so if you came looking for that
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software, you've found it.
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Cairo has been designed to let you draw anything you might want to
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have in a modern 2D graphical user interface. At the same time, the
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cairo API has been designed to be as easy to learn and fun to use as
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possible. If you're not having fun while programming with cairo, then
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we have failed somewhere---let us know and we'll try to fix it next
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time around.
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Cairo is free software and is available to be redistributed and/or
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modified under the terms of either the GNU Lesser General Public
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License (LGPL) version 2.1 or the Mozilla Public License (MPL) version
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1.1.
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Where to get more information about cairo
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=========================================
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The primary source of information about cairo is:
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http://cairographics.org
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The latest releases of cairo can be found at:
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http://cairographics.org/releases
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Snapshots of in-developmenent versions of cairo:
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http://cairographics.org/snapshots
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The programming manual for using cairo:
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http://cairographics.org/manual
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Mailing lists for contacting cairo users and developers:
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http://cairographics.org/lists
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Answers to some frequently asked questions about cairo:
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http://cairographics.org/FAQ
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Dependencies
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------------
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Cairo currently requires the following supporting libraries:
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============
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The set of libraries needed to compile cairo depends on which backends
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are enabled when cairo is configured. Here are the dependencies for
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each backend:
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libpixman
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Xft2
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fontconfig
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freetype2
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Surface backends:
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Documentation
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-------------
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There's not much documentation yet apart from the cairo.h header
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file. We'll be correcting that shortly.
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image backend
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-------------
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no dependencies
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In the meantime, the cairo-demo module in CVS provides a few example
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programs using cairo. These may be helpful to a programmer just
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beginning with cairo. Also, familiarity with the PostScript imaging
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model will help in understanding cairo.
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glitz backend
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-------------
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glitz >= 0.4.4 http://freedesktop.org/Software/glitz)
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pdf backend
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-----------
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freetype >= 2.1.4 http://freetype.org
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postscript backend
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------------------
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zlib http://www.gzip.org/zlib
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quartz backend
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--------------
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win32 backend
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-------------
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xcb backend
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-----------
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XCB http://xcb.freedesktop.org
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xlib backend
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------------
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Xrender >= 0.6 http://freedesktop.org/Software/xlibs
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Font backends:
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freetype font backend
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---------------------
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freetype >= 2.1.4 http://freetype.org
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fontconfig http://fontconfig.org
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win32 font backend
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------------------
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atsui font backend
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------------------
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Compiling
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=========
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See the INSTALL document for build instructions.
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History
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-------
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=======
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Cairo was originally developed by Carl Worth <cworth@cworth.org> and
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Keith Packard <keithp@keithp.com>. Many thanks are due to Lyle Ramshaw
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without whose patient help our ignorance would be much more apparent.
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Mailing List
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------------
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If you have trouble with cairo or you have some ideas for how it could be
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improved, please feel free to send a message to cairo@cairographics.org
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Cairo is still under active development and all discussion happens on
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that list. So if you want to lurk or, (even better), take part in the
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development, take a look. Subscription information and archives are
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available:
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http://cairographics.org/cgi-bin/mailman/listinfo/cairo
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Since the original development, many more people have contributed to
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cairo. See the AUTHORS files for as complete a list as we've been able
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to compile so far.
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