annotate dox/first_program.h @ 579:e2c9117b1e12 openvg

Add an option to enable OpenVG graphic engine
author Thinker K.F. Li <thinker@branda.to>
date Wed, 16 Jun 2010 21:28:57 +0800
parents 6ce68c1f7405
children
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1 /*! \page first_program Your First MadButterfly Program.
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2 *
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3 * MadButterfly use SVG as a media to adapt gap between GUI designers
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4 * and application programmmers. Designers export their works with SVG
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5 * format. Then some ones, designers or programmers, assign IDs to SVG tags
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6 * that will be manipulated by application. For example, you have a menu
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7 * that should be hidden at beginning. When user hit a button, the menu
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8 * should be showed. So, we assign an ID to the group or other tags that
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9 * contain all elements in menu. The ID is the name of a object that
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10 * application manipulate, hide and show it.
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11 *
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12 * After assigning IDs to tags, the file is translated by svg2code.py.
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13 * Outputs of svg2code.py are M4 macro files. Conventional, foo.svg is
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14 * translated a M4 file as foo.mb, using .mb as extension of file name.
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15 * Macro files are translate to *.c and *.h files to link with application
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16 * programs.
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17 *
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18 * For example, to translate foo.svg with steps
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19 * - \$(PREFIX)/bin/svg2code.py foo.svg foo.mb
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20 * - m4 -I \$(PREFIX)/share/mb mb_c_source.m4 foo.mb > foo.c
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21 * - m4 -I \$(PREFIX)/share/mb mb_c_header.m4 foo.mb > foo.h
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22 *
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23 * foo.h declares a structure, named 'foo' and two functions,
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24 * foo_new() and foo_free(). An instance of 'foo' holds all objects for
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25 * foo.svg. One object, with specified ID as name, for each tag. If you
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26 * don't assign one, a random one is picked. foo_new() is invoked to create
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27 * and initialize a 'foo' instance. An instance is released by calling
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28 * foo_free().
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29 *
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30 * \dontinclude examples/svg2code_ex/main.c
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31 * \skip main
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32 * \until }
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33 */