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/*
* $Id: fcpattern.fncs,v 1.3 2005/06/28 01:01:03 alanc Exp $
*
* Copyright © 2003 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
@RET@ FcPattern *
@FUNC@ FcPatternCreate
@TYPE1@ void
@PURPOSE@ Create a pattern
@DESC@
Creates a pattern with no properties; used to build patterns from scratch.
@@
@RET@ void
@FUNC@ FcPatternDestroy
@TYPE1@ FcPattern * @ARG1@ p
@PURPOSE@ Destroy a pattern
@DESC@
Destroys a pattern, in the process destroying all related values.
@@
@RET@ FcBool
@FUNC@ FcPatternEqual
@TYPE1@ const FcPattern * @ARG1@ pa
@TYPE2@ const FcPattern * @ARG2@ pb
@PURPOSE@ Compare patterns
@DESC@
Returns whether <parameter>pa</parameter> and <parameter>pb</parameter> are exactly alike.
@@
@RET@ FcBool
@FUNC@ FcPatternEqualSubset
@TYPE1@ const FcPattern * @ARG1@ pa
@TYPE2@ const FcPattern * @ARG2@ pb
@TYPE3@ const FcObjectSet * @ARG3@ os
@PURPOSE@ Compare portions of patterns
@DESC@
Returns whether <parameter>pa</parameter> and <parameter>pb</parameter> have exactly the same values for all of the
objects in <parameter>os</parameter>.
@@
@RET@ FcChar32
@FUNC@ FcPatternHash
@TYPE1@ const FcPattern * @ARG1@ p
@PURPOSE@ Compute a pattern hash value
@DESC@
Returns a 32-bit number which is the same for any two patterns which are
equal.
@@
@RET@ FcBool
@FUNC@ FcPatternAdd
@TYPE1@ FcPattern * @ARG1@ p
@TYPE2@ const char * @ARG2@ object
@TYPE3@ FcValue @ARG3@ value
@TYPE4@ FcBool @ARG4@ append
@PURPOSE@ Add a value to a pattern
@DESC@
Adds a single value to the list of values associated with the property named
`object<parameter>. If `append</parameter> is FcTrue, the value is added at the end of any
existing list, otherwise it is inserted at the begining. `value' is saved
(with FcValueSave) when inserted into the pattern so that the library
retains no reference to any application-supplied data structure.
@@
@RET@ FcBool
@FUNC@ FcPatternAddWeak
@TYPE1@ FcPattern * @ARG1@ p
@TYPE2@ const char * @ARG2@ object
@TYPE3@ FcValue @ARG3@ value
@TYPE4@ FcBool @ARG4@ append
@PURPOSE@ Add a value to a pattern with weak binding
@DESC@
FcPatternAddWeak is essentially the same as FcPatternAdd except that any
values added to the list have binding <parameter>weak</parameter> instead of <parameter>strong</parameter>.
@@
@TITLE@ FcPatternAdd-Type
@RET@ FcBool
@FUNC@ FcPatternAddInteger
@TYPE1@ FcPattern * @ARG1@ p
@TYPE2@ const char * @ARG2@ object
@TYPE3@ int @ARG3@ i
@PROTOTYPE+@
@RET+@ FcBool
@FUNC+@ FcPatternAddDouble
@TYPE1+@ FcPattern * @ARG1+@ p
@TYPE2+@ const char * @ARG2+@ object
@TYPE3+@ double @ARG3+@ d
@PROTOTYPE++@
@RET++@ FcBool
@FUNC++@ FcPatternAddString
@TYPE1++@ FcPattern * @ARG1++@ p
@TYPE2++@ const char * @ARG2++@ object
@TYPE3++@ const char * @ARG3++@ s
@PROTOTYPE+++@
@RET+++@ FcBool
@FUNC+++@ FcPatternAddMatrix
@TYPE1+++@ FcPattern * @ARG1+++@ p
@TYPE2+++@ const char * @ARG2+++@ object
@TYPE3+++@ const FcMatrix * @ARG3+++@ m
@PROTOTYPE++++@
@RET++++@ FcBool
@FUNC++++@ FcPatternAddCharSet
@TYPE1++++@ FcPattern * @ARG1++++@ p
@TYPE2++++@ const char * @ARG2++++@ object
@TYPE3++++@ const FcCharSet * @ARG3++++@ c
@PROTOTYPE+++++@
@RET+++++@ FcBool
@FUNC+++++@ FcPatternAddBool
@TYPE1+++++@ FcPattern * @ARG1+++++@ p
@TYPE2+++++@ const char * @ARG2+++++@ object
@TYPE3+++++@ FcBool @ARG3+++++@ b
@PURPOSE@ Add a typed value to a pattern
@DESC@
These are all convenience functions that insert objects of the specified
type into the pattern. Use these in preference to FcPatternAdd as they
will provide compile-time typechecking. These all append values to
any existing list of values.
@@
@RET@ FcResult
@FUNC@ FcPatternGet
@TYPE1@ FcPattern * @ARG1@ p
@TYPE2@ const char * @ARG2@ object
@TYPE3@ int @ARG3@ id
@TYPE4@ FcValue * @ARG4@ v
@PURPOSE@ Return a value from a pattern
@DESC@
Returns in <parameter>v</parameter> the <parameter>id</parameter>'th value
associated with the property <parameter>object</parameter>.
The value returned is not a copy, but rather refers to the data stored
within the pattern directly. Applications must not free this value.
@@
@TITLE@ FcPatternGet-Type
@PROTOTYPE@
@RET@ FcResult
@FUNC@ FcPatternGetInteger
@TYPE1@ FcPattern * @ARG1@ p
@TYPE2@ const char * @ARG2@ object
@TYPE3@ int @ARG3@ n
@TYPE4@ int * @ARG4@ i
@PROTOTYPE+@
@RET+@ FcResult
@FUNC+@ FcPatternGetDouble
@TYPE1+@ FcPattern * @ARG1+@ p
@TYPE2+@ const char * @ARG2+@ object
@TYPE3+@ int @ARG3+@ n
@TYPE4+@ double * @ARG4+@ d
@PROTOTYPE++@
@RET++@ FcResult
@FUNC++@ FcPatternGetString
@TYPE1++@ FcPattern * @ARG1++@ p
@TYPE2++@ const char * @ARG2++@ object
@TYPE3++@ int @ARG3++@ n
@TYPE4++@ char **const @ARG4++@ s
@PROTOTYPE+++@
@RET+++@ FcResult
@FUNC+++@ FcPatternGetMatrix
@TYPE1+++@ FcPattern * @ARG1+++@ p
@TYPE2+++@ const char * @ARG2+++@ object
@TYPE3+++@ int @ARG3+++@ n
@TYPE4+++@ FcMatrix ** @ARG4+++@ s
@PROTOTYPE++++@
@RET++++@ FcResult
@FUNC++++@ FcPatternGetCharSet
@TYPE1++++@ FcPattern * @ARG1++++@ p
@TYPE2++++@ const char * @ARG2++++@ object
@TYPE3++++@ int @ARG3++++@ n
@TYPE4++++@ FcCharSet ** @ARG4++++@ c
@PROTOTYPE+++++@
@RET+++++@ FcResult
@FUNC+++++@ FcPatternGetBool
@TYPE1+++++@ FcPattern * @ARG1+++++@ p
@TYPE2+++++@ const char * @ARG2+++++@ object
@TYPE3+++++@ int @ARG3+++++@ n
@TYPE4+++++@ FcBool * @ARG4+++++@ b
@PURPOSE@ Return a typed value from a pattern
@DESC@
These are convenience functions that call FcPatternGet and verify that the
returned data is of the expected type. They return FcResultTypeMismatch if
this is not the case. Note that these (like FcPatternGet) do not make a
copy of any data structure referenced by the return value. Use these
in preference to FcPatternGet to provide compile-time typechecking.
@@
@RET@ FcPattern *
@FUNC@ FcPatternBuild
@TYPE1@ FcPattern * @ARG1@ orig
@TYPE2@ ...
@PROTOTYPE+@
@RET+@ FcPattern *
@FUNC+@ FcPatternVaBuild
@TYPE1+@ FcPattern * @ARG1+@ orig
@TYPE2+@ va_list @ARG2+@ va
@PURPOSE@ Create patterns from arguments
@DESC@
Builds a pattern using a list of objects, types and values. Each
value to be entered in the pattern is specified with three arguments:
</para>
<orderedlist>
<listitem><para>
Object name, a string describing the property to be added.
</para></listitem><listitem><para>
Object type, one of the FcType enumerated values
</para></listitem><listitem><para>
Value, not an FcValue, but the raw type as passed to any of the
FcPatternAdd<type> functions. Must match the type of the second
argument.
</para></listitem>
</orderedlist>
<para>
The argument list is terminated by a null object name, no object type nor
value need be passed for this. The values are added to `pattern', if
`pattern' is null, a new pattern is created. In either case, the pattern is
returned. Example
</para>
<programlisting>
pattern = FcPatternBuild (0, FC_FAMILY, FtTypeString, "Times", (char *) 0);
</programlisting>
<para>
FcPatternVaBuild is used when the arguments are already in the form of a
varargs value.
@@
@RET@ FcBool
@FUNC@ FcPatternDel
@TYPE1@ FcPattern * @ARG1@ p
@TYPE2@ const char * @ARG2@ object
@PURPOSE@ Delete a property from a pattern
@DESC@
Deletes all values associated with the property `object', returning
whether the property existed or not.
@@
@RET@ FcBool
@FUNC@ FcPatternRemove
@TYPE1@ FcPattern * @ARG1@ p
@TYPE2@ const char * @ARG2@ object
@TYPE3@ int @ARG3@ id
@PURPOSE@ Remove one object of the specified type from the pattern
@DESC@
Removes the value associated with the property `object' at position `id', returning
whether the property existed and had a value at that position or not.
@@
@RET@ void
@FUNC@ FcPatternPrint
@TYPE1@ const FcPattern * @ARG1@ p
@PURPOSE@ Print a pattern for debugging
@DESC@
Prints an easily readable version of the pattern to stdout. There is
no provision for reparsing data in this format, it's just for diagnostics
and debugging.
@@
@RET@ void
@FUNC@ FcDefaultSubstitute
@TYPE1@ FcPattern * @ARG1@ pattern
@PURPOSE@ Perform default substitutions in a pattern
@DESC@
Supplies default values for underspecified font patterns:
<itemizedlist>
<listitem><para>
Patterns without a specified style or weight are set to Medium
</para></listitem>
<listitem><para>
Patterns without a specified style or slant are set to Roman
</para></listitem>
<listitem><para>
Patterns without a specified pixel size are given one computed from any
specified point size (default 12), dpi (default 75) and scale (default 1).
</para></listitem>
</itemizedlist>
@@
@RET@ FcPattern *
@FUNC@ FcNameParse
@TYPE1@ const char * @ARG1@ name
@PURPOSE@ Parse a pattern string
@DESC@
Converts <parameter>name</parameter> from the standard text format described above into a pattern.
@@
@RET@ FcChar8 *
@FUNC@ FcNameUnparse
@TYPE1@ FcPattern * @ARG1@ pat
@PURPOSE@ Convert a pattern back into a string that can be parsed
@DESC@
Converts the given pattern into the standard text format described above.
The return value is not static, but instead refers to newly allocated memory
which should be freed by the caller.
@@
|
