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<div class="title">Design </div> </div>
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<div class="textblock"><h1><a class="anchor" id="design_purpose"></a>
Purpose</h1>
<p><a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> is designed to achieve several goals:</p>
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<li>Platform-independence: <a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> should be buildable on any platform that supports OpenGL</li>
<li>Driver-independence: <a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> should be a standalone GUI framework that does not require any particular application framework; though SDL and Ogre drivers are supplied, <a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> should be usable with any driver code the user wishes to supply</li>
<li>Easy extensibility: new controls and GUI behavior should be easy to incorporate</li>
<li>Complete graphical control for the user/designer: the user should not be limited by the author's lack of artistic skill!</li>
<li>Independence of UI elements from the source code: <a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> UI elements should be configurable as text files, so that UI design and alteration should not require a recompilation</li>
<li>Overall time efficiency: an application with a reasonable number of <a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> UI elements should not slow down significantly because of the rendering or handling of those elements</li>
<li>Overall space efficiency: each <a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> UI element should have a reasonably small data size</li>
<li>Efficient mixture of 2D and 3D graphical elements: it should be appropriate to use <a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> in any frame-based 3D application, even a realtime 3D video game</li>
<li>Simplicity of use: <a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> UI elements should be able to send arbitrary messages when manipulated by the user; there should be no message passing hierarchy imposed on the user</li>
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<h1><a class="anchor" id="design_features"></a>
Features</h1>
<p><a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> has the following features and services:</p>
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<li>Communication of UI controls via signals and slots</li>
<li>Support for 2D-, 3D-, and mixed-mode rendering</li>
<li>Managment of textures and fonts</li>
<li>Serialization of UI elements</li>
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<h1><a class="anchor" id="nonfeatures"></a>
Non-Features</h1>
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<li><a class="el" href="namespaceGG.html" title="The namespace that encloses all GG classes, functions, typedefs, enums, etc.">GG</a> is not fully threadsafe, due to its use of signals and slots</li>
<li>No sound support is provided </li>
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