![]() ![]() Developer needs to implement different Action Controller on different region's actions. Plugin allows developer to create, retrieve, update and delete diagram elements through the popup menu context or through the project (to iterate all the diagrams and then the diagram elements appear on a diagram).Īction represents buttons and menus (menu, toolbar and popup menu), which contains the information on outlook (such as label, icon, mnemonic, etc.) and responses to trigger the function call.Īction is used to represent the button on 3 regions: menu/toolbar, popup menu and diagram toolbarĪction Controller is the control (function call) of actions. Connector represents the relationships (such as Generalization). Shape represents the non-relationships diagram element (such as Class). There are 2 kinds of diagram element: Shape and Connector. ![]() A model element can be shown on different diagrams (such as a class can be shown on 2 different class diagrams). Diagram Element represents a view of a model element. It is the diagram element, which appear on the user interface, that owns the appearance data. Plugin allows developer to create, retrieve, update and delete diagrams through the popup menu context or through the project (by iterating diagrams within a project)Ī model element does not contain information of appearance (such as x, y, width, height, etc.). Plugin allows developer to create, retrieve, update and delete model elements through the popup menu context or through the project (by iterating model elements within a project).ĭiagram is contains diagram elements on different domain (such as Use Case Diagram, Class Diagram, ERD, etc.). Model Elements are basic construct of a model. It includes the information (such as plugin id, provider, required libraries, etc.), custom actions (menu, toolbar and popup menu) and custom shapes/connector of the plugin.įor working with Visual Paradigm in plugin, there are 4 main components must be known by developers: Model, Diagram, Diagram Element and Action/Action Controller. Plugin.xmlĪ plugin is defined in a XML file (plugin.xml). In this section, we will introduce the structure of a plugin. ![]() Developers can develop their plugins for what they want. For casual, unsophisticated applications by someone who grew up with green screen character based computers, it's probably OK.Plugin Support provides an interface for developers to integrate with Visual Paradigm. For this reason, I would not recommend Emacs to anyone who is under 50 year old, or who needs power user capabilities. The things I just mentioned, are all present in some limited and inept form, but falls far short of current standard of good user interface design. To this day, it lacks or struggles with very basic things, like interactive dialogs, toolbars, tabbed interface, file system navigation, etc., etc. So Emacs does 5% or what an editor should do quite will, and is surprisingly under-powered and old fashioned at the other 95%. Unfortunately, it didn't keep up with the times and fails to take advantage of the entire world of GUI design that's revolutionized computer science since then. In fairness to Emacs, its original design was conceived in that context and is rather good at some things, like flexible ability to bind commands to keyboard shortcuts. User interface is terrible I was using Emacs in the early 1980's, before there were GUIs.
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