<h3>Actor and Stage</h3>\r
\r
<p>Actor is the primary object for interaction in DALi applications. Actors are effective nodes that receive input (touch events) and act as a container for drawable elements and other actors. A DALi application uses a hierarchy of actor objects to position visible content. An actor inherits a position relative to its parent, and can be moved relative to this point. UI components can be built by combining multiple actors.</p>\r
-<p>Stage is a top-level node of the scene graph used for displaying a tree of actors. To display an actor, add is to the stage.</p>\r
+<p>Stage is a top-level node of the scene graph used for displaying a tree of actors. To display an actor, add it to the stage.</p>\r
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<h3>Signal and Slot</h3>\r
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<li><span style="font-family: Courier New,Courier,monospace;">dali-toolkit</span>\r
<p>This module provides UI components and various effects on top of the dali-core.</p></li>\r
<li><span style="font-family: Courier New,Courier,monospace;">dali-adaptor</span>\r
-<p><span style="font-family: Courier New,Courier,monospace;">dali-adaptor</span> is a platform adaptation layer. It initializes and sets up DALi appropriately. The module provides many platform-related services. Several signals can be connected to it to keep you informed when certain platform-related activities occur.</p></li>\r
+<p><span style="font-family: Courier New,Courier,monospace;">dali-adaptor</span> is a platform adaptation layer. It initializes and sets up DALi appropriately. The module provides many platform-related services with its internal module, platform abstraction. Several signals can be connected to it to keep you informed when certain platform-related activities occur.</p></li>\r
</ul>\r
<p class="figure">Figure: DALi internal structure</p>\r
<p align="center"><img alt="DALi internal structure" src="../../images/dali_component.png" /></p>\r
\r
<p>The concept of signal and slots were introduced by Qt for communication between objects. The event mechanism of DALi is inspired by Qt.</p>\r
\r
-<p class="figure">Figure: Signal and slot event handling</p> \r
+<p class="figure">Figure: A schematic example of signal-slot connections<br>\r
+ : Signal 1 is connected to slot 1,<br>\r
+ signal 2 is connected to slot 1 & slot 3, <br>\r
+ and signal 3 is connected to slot 2.</p> \r
<p align="center"><img alt="Signal and slot event handling" src="../../images/signal_slot.png"/></p> \r
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<p>The signal and slot system has following advantages:</p>\r