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VisualAP 1.11 a Framework for Component Based

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userguide for the application visualap
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  VisualAP 1.1 1 A framework for component based designUser guide   1 03 February 2008, author:  javalc6@gmail.comThis document is provided under the open content license:http://www.opencontent.org/opl.shtmlor read file license.txtThis document has been written using OpenOffice.org Writer.  CONTENTS ChapterPage1 VisualAp.....................................................................................................................31.1 Introduction....................................................................................................31.2 Basic Concepts.............................................................................................31.3 Release Notes...............................................................................................32 User Interface............................................................................................................42.1 Description....................................................................................................42.2 Details about available menu........................................................................73 Components..............................................................................................................93.1 Introduction....................................................................................................93.2 Using components........................................................................................93.3 Demo components......................................................................................104 Installation and start of visualap..............................................................................114.1 Basic users (Windows 2000 or Windows XP required)..............................114.2 Expert users (Windows 2000, Windows XP and Linux).............................115 Tutorial.....................................................................................................................126 Terminology.............................................................................................................13  1VisualAp1.1Introduction VisualAp is a visual framework for building application and systems based onlightweight visual components, called proclets. Users can add their own components inorder to extend the capability of VisualAp.The VisualAp application can be used to perform audio processing, image processing,text and other process-driven emulation.The user can create an application by selecting the components from a toolbox,configuring the parameters (via the Javabeans framework), and connecting thecomponents together in order to set-up communication channels between thecomponents.In the first release the user runs code execution through the engine included inVisualAp, in interpreted mode. In later releases it will be possible to generate Java codethat can be compiled and run in standalone mode. 1.2Basic Concepts VisualAp is based on two main concepts: system and components.A component is the basic element providing some services. A system is build using anumber of components that are configured and connected together in order to achievea complex functionality.A system is a graph whose nodes are the components.Note that in VisualAp a component is also called proclet (processing element).There are three type of components: ● source: any component that generates some sort of data ● sink: any component that consumes data ● processor: any component that process input data into output data 1.3Release Notes VersionDescriptionVersion 1.1New: Check Latest Version feature (from the main menu: Help -> CheckVersion)New: Optional <version> field in componentsNew: Components are updated automatically from the webChanged: Cloneable interface now is optional for componentsCorrected: a fault related to text element  2User Interface2.1Description This program creates a graphic window with a menu, a workplace panel and a toolboxpanel. When needed, a floating window appears to show properties of the components.From the application menu it is possible to open a file dialog, print dialog, help window,preference dialog and an about box.It is possible to create, move, edit any components in the workplace panel using themouse buttons.Components can be connected together by first pressing the mouse button over aterminal, then move the mouse pointer over another terminal and then release themouse button: an edge between the two terminals is created.The toolbox shows the available components (proclets) via their icons and names. Theuser can select a component by clicking the mouse pointer in the toolbox area. After releasing the mouse button, the cursor changes to cross-hair cursor indicating that acomponent was selected. Then you move the cross-hair cursor in the left panel andclick again: when the mouse button is released, the selected component is placed in theworkplace panel. WorkspaceToolbox
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