]> Version &version; 2008 OpenedHand LTD Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. You may obtain a copy of the GNU Free Documentation License from the Free Software Foundation by visiting their Web site or by writing to:

The Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

Clutter is a GObject based library for creating fast, visually rich graphical user interfaces. Clutter essentially works by manipulating a scene graph of 2D surfaces (actors) in 3D space. #ClutterActor is the base class for such surfaces. All #ClutterActors can we positioned and rotated in 3D space, scaled, clipped, have children, have there opacity and origin set. Tranforms applied to a parent actor also apply to any children. Actors are also able to receive events. Sub classes of #ClutterActor include #ClutterStage, #ClutterTexture, #ClutterLabel, #ClutterRectangle, #ClutterStage, #ClutterEntry and #ClutterGroup. #ClutterActors are added to a parent, transformed and the made visible. #ClutterStage is the top level #ClutterActor - its essentially a window or framebuffer. It is created automatically when Clutter is initialised. #ClutterStage is a #ClutterGroup, a class implementing the #ClutterCointainer interface. Clutter currently only supports a single stage. #ClutterTimeline's provide the basis for Clutters animation utilitys. Building on this include the #ClutterScore, for syncronising multiple timelines and the #ClutterBehaviour's and #ClutterEffect's for creating animation effects such as transitions. Clutter further contains a number of utilities including; #ClutterScript - for loading 'UI definition' files formatted in JSON, #ClutterShader - a class for applying GPU shaders to actors, #ClutterModel - a utility class for MVC list type implementations and #ClutterFixed - fixed point math utilitys Clutter depends on the following libraries: GLib A general-purpose utility library, not specific to graphical user interfaces. GLib provides many useful data types, macros, type conversions, string utilities, file utilities, a main loop abstraction, and so on. GObject The GLib Object System provides the required implementations of a flexible, extensible and intentionally easy to map (into other languages) object-oriented framework for C. Pango Pango is a library for laying out and rendering of text, with an emphasis on internationalization. GDK-Pixbuf GDK-Pixbuf is a library for loading and manipulating various image file formats. Backend Windowing System Library GLX, EGL (1.1), SDL and Cocoa (OS X) Graphics Rendering Open GL (1.2+) ir Open GL ES (1.1) FIXME: Linux, Windows, OSX. Embedded? Clutter is usually compiled against a specific drawing backend. All backends have a common API for querying the underlying platform, and some of them might have specific API exposed by Clutter. This section contains additional useful documentation for developing with Clutter. &clutter-SubclassingActor; &clutter-animation; &creating-your-own-behaviours; This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You may obtain a copy of the GNU Library General Public License from the Free Software Foundation by visiting their Web site or by writing to:

Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307 USA