contents of title appear in the JFrame's title bar. Pass the title argument to the JFrame superclass so that the Listing 5 The TableHeaderIcons application source code // TableHeaderIcons.java ThisĪpplication was used to generate the GUI in Figure 8 and shows how easy it is Listing 5 presents source code to a TableHeaderIcons application. With an object created from the renderer class. Then call TableColumn's setHeaderRenderer method Method to retrieve a reference to a TableColumn object that describes To specify an icon for a particular column, call JTable's getColumn To a JLabel constructor during the creation of a JLabel object.Īfter making a few other changes, this JLabel object can be returned The above code fragment creates an ImageIcon object that loads an icon Represents the rendering component: JLabel l = new JLabel (new ImageIcon ("icon.gif")) The following code fragment creates a JLabel object that What component can be used to perform this rendering? How about a componentīased on the JLabel class? After all, JLabel is capable of renderingĪn icon image. In turn, this method returns a component capable of rendering the column That implements the TableCellRenderer interface by providing a getTableCellRendererComponent To display an icon in a column header, first establish a renderer (aĬomponent that draws graphics) for that column header. Here are examples of toolWindowStructure.Special Edition Using Java 2, Standard Editionĭid you know that icon images can be displayed in a table component's columnĪssigning icons to a JTable component's header columns makes them The IconLoader class will load the icon that matches the best depending on the current environment. ![]() IconName_dark.png W x H pixels (Will be used on non-Retina devices with Darcula 2*W x 2*H pixels (Will be used on Retina devices with Darcula theme) IconName.png W x H pixels (Will be used on non-Retina devices with default 2*W x 2*H pixels (Will be used on Retina devices with default theme) Please consider using SVG icons for optimal results if your plugin targets 2018.2+.Īll icon files must be placed in the same directory following this naming pattern (replace. If the icon graphics are simple enough so that it renders perfectly in every scale, then the version can be omitted.įor generating the SVG icons suited for the IntelliJ-based IDEs, you may also use the third-party web tool IntelliJ Icon Generator. The icon graphics of such an icon can be expressed in more details via double precision. However, the version of an SVG icon should still provide the same base size. The naming notation used for PNG icons (see below) is still relevant. ![]() Then define a class/interface in a top-level package called icons holding icon constants as static fields: The path to the icon passed in as argument to IconLoader.getIcon() must start with leading /. The getIcon() method of IconLoader can be used to access the icons. The best way to deal with icons and other image resources is to put them to a dedicated source root marked as Resources Root, say icons or resources. See Action Basics sample plugin as reference. If custom icons are required, please refer to detailed design guide. Icons from plugins are located in corresponding Icons class (e.g., GithubIcons). Plugins should reuse existing platform icons whenever possible. For more information see the Plugin Logo. Plugin Logos, which represent a plugin itself, have different requirements than icons and images used within a plugin. Plugins need icons mostly for actions, custom components renderers, tool windows, and so on. Icons and images are used widely by IntelliJ Platform plugins.
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