mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-10-02 03:46:39 +02:00
72e08fb87b
Dealing with GParamSpec is tedious and less efficient than necessary; property definitions should be able to either directly access a struct field or specify the accessors pair that control a property. On top of that, most of the property and accessor definition can be autogenerated from simple pre-processor directives. So, here's to you GProperty. GProperty is a GParamSpec sub-class that encapsulates all the types inside a single, opaque structure (to avoid leaking out implementation details); a GProperty can access the structure member holding the value of the property, or invoke the accessor functions passed to its constructor. Type safety is maintained through the GType system and without having to use GValue. Along with GProperty, this patch introduces a series of macros for automating the declaration and definition of property accessor functions, and for automating the collection and lcopy of values without going through GValue. GObject will recognize whether a GParamSpec used to set or get a property is really a GProperty, and thus will shortcircuit most of the GValue-based marshalled code, preferring the direct C function and direct argument collection instead of boxing/unboxing of GValues. https://bugzilla.gnome.org/show_bug.cgi?id=648526
172 lines
6.8 KiB
XML
172 lines
6.8 KiB
XML
<?xml version="1.0"?>
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<!DOCTYPE book PUBLIC '-//OASIS//DTD DocBook XML V4.5//EN'
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'http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd' [
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<!ENTITY % local.common.attrib "xmlns:xi CDATA #FIXED 'http://www.w3.org/2003/XInclude'">
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<!ENTITY version SYSTEM "version.xml">
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]>
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<book id="index" xmlns:xi="http://www.w3.org/2003/XInclude">
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<bookinfo>
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<title>GObject Reference Manual</title>
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<releaseinfo>
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for GObject &version;
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The latest version of this documentation can be found on-line at
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<ulink role="online-location" url="http://library.gnome.org/devel/gobject/unstable/">http://library.gnome.org/devel/gobject/unstable/</ulink>.
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</releaseinfo>
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</bookinfo>
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<preface>
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<title>Introduction</title>
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<para>
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Most modern programming languages come with their own native object
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systems and additional fundamental algorithmic language constructs.
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Just as GLib serves as an implementation of such fundamental
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types and algorithms (linked lists, hash tables and so forth), the
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GLib Object System provides the required implementations of a
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flexible extensible and intentionally easy to map (into other
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languages) object-oriented framework for C.
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The substantial elements that are provided can be summarized as:
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<itemizedlist>
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<listitem><para>
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A generic type system to register arbitrary single-inherited
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flat and deep derived types as well as interfaces for
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structured types.
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It takes care of creation, initialization and memory management
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of the assorted object and class structures, maintains
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parent/child relationships and deals with dynamic implementations
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of such types. That is, their type specific implementations are
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relocatable/unloadable during runtime.
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</para></listitem>
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<listitem><para>
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A collection of fundamental type implementations, such as integers,
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doubles, enums and structured types, to name a few.
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</para></listitem>
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<listitem><para>
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A sample fundamental type implementation to base object hierarchies
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upon - the GObject fundamental type.
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</para></listitem>
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<listitem><para>
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A signal system that allows very flexible user customization of
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virtual/overridable object methods and can serve as a powerful
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notification mechanism.
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</para></listitem>
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<listitem><para>
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An extensible parameter/value system, supporting all the provided
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fundamental types that can be used to generically handle object
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properties or otherwise parameterized types.
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</para></listitem>
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</itemizedlist>
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</para>
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</preface>
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<part label="I">
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<title>Concepts</title>
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<xi:include href="tut_intro.xml" />
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<xi:include href="tut_gtype.xml" />
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<xi:include href="tut_gobject.xml" />
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<xi:include href="tut_gsignal.xml" />
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</part>
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<reference label="II">
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<title>API Reference</title>
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<xi:include href="xml/gtype.xml" />
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<xi:include href="xml/gtypeplugin.xml" />
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<xi:include href="xml/gtypemodule.xml" />
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<xi:include href="xml/objects.xml" />
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<xi:include href="xml/enumerations_flags.xml" />
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<xi:include href="xml/gboxed.xml" />
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<xi:include href="xml/generic_values.xml" />
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<xi:include href="xml/param_value_types.xml" />
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<xi:include href="xml/gparamspec.xml" />
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<xi:include href="xml/value_collection.xml" />
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<xi:include href="xml/signals.xml" />
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<xi:include href="xml/gclosure.xml" />
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<xi:include href="xml/value_arrays.xml" />
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<xi:include href="xml/gproperty.xml" />
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<xi:include href="xml/gbinding.xml" />
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</reference>
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<reference label="III">
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<title>Tools Reference</title>
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<xi:include href="glib-mkenums.xml" />
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<xi:include href="glib-genmarshal.xml" />
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<xi:include href="gobject-query.xml" />
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</reference>
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<xi:include href="tut_howto.xml" />
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<xi:include href="tut_tools.xml" />
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<index id="api-index-full">
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<title>Index</title>
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<xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-deprecated" role="deprecated">
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<title>Index of deprecated symbols</title>
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<xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-2" role="2.2">
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<title>Index of new symbols in 2.2</title>
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<xi:include href="xml/api-index-2.2.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-4" role="2.4">
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<title>Index of new symbols in 2.4</title>
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<xi:include href="xml/api-index-2.4.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-6" role="2.6">
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<title>Index of new symbols in 2.6</title>
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<xi:include href="xml/api-index-2.6.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-8" role="2.8">
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<title>Index of new symbols in 2.8</title>
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<xi:include href="xml/api-index-2.8.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-10" role="2.10">
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<title>Index of new symbols in 2.10</title>
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<xi:include href="xml/api-index-2.10.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-12" role="2.12">
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<title>Index of new symbols in 2.12</title>
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<xi:include href="xml/api-index-2.12.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-14" role="2.14">
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<title>Index of new symbols in 2.14</title>
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<xi:include href="xml/api-index-2.14.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-18" role="2.18">
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<title>Index of new symbols in 2.18</title>
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<xi:include href="xml/api-index-2.18.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-22" role="2.22">
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<title>Index of new symbols in 2.22</title>
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<xi:include href="xml/api-index-2.22.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-24" role="2.24">
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<title>Index of new symbols in 2.24</title>
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<xi:include href="xml/api-index-2.24.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-26" role="2.26">
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<title>Index of new symbols in 2.26</title>
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<xi:include href="xml/api-index-2.26.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-28" role="2.28">
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<title>Index of new symbols in 2.28</title>
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<xi:include href="xml/api-index-2.28.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-30" role="2.30">
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<title>Index of new symbols in 2.30</title>
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<xi:include href="xml/api-index-2.30.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-32" role="2.32">
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<title>Index of new symbols in 2.32</title>
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<xi:include href="xml/api-index-2.32.xml"><xi:fallback /></xi:include>
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</index>
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<index id="api-index-2-34" role="2.34">
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<title>Index of new symbols in 2.34</title>
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<xi:include href="xml/api-index-2.34.xml"><xi:fallback /></xi:include>
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</index>
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<xi:include href="xml/annotation-glossary.xml"><xi:fallback /></xi:include>
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</book>
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