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Pane, Internal /External Frame, Image Processing

Discover the capabilities of Java 9's GUI components including JTabbedPane for easy navigation through tabs, JSplitPane for resizing components interactively, and JDesktopPane with JInternalFrame for managing multiple documents. Explore the JFrame for creating windows with customizable closing operations. Learn how to efficiently handle image processing with the ImageIO class, including reading and writing images in supported formats like GIF, BMP, PNG, and JPEG. Enhance your Java applications with these essential GUI techniques and image processing methods.

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Pane, Internal /External Frame, Image Processing

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  1. Pane, Internal /External Frame, Image Processing By: Greg Java 9 - GUI

  2. JTabbedPane • A component that lets the user switch between a group of components by clicking on a tab with a given title and/or icon. • Examples : PaintPanel Project, Tab Panel Project Java 9 - GUI

  3. JSplitPane • JSplitPane • Used to divide two (and only two) Components. • The two Components are graphically divided. • The two Components can then be interactively resized by the user. • Example: PaintPanel Project Java 9 - GUI

  4. JDesktopPane and JInternalFrame • Multiple document interface • Main (parent) window • Child windows • Switch freely among documents • Example: Menu Project Java 9 - GUI

  5. Windows (External Frame) • JFrame • Windows with title bar and border • Subclass of java.awt.Frame • Subclass of java.awt.Window • Heavyweight component • Three operations when user closes window • DISPOSE • DO_NOTHING • HIDE • EXIT_ON_CLOSE (Default) • Example: Menu Project Java 9 - GUI

  6. Simple Image Processing • ImageIO class provides a set of methods that perform most simple Image I/O operations. • Reading an image in a supported format (GIF, BMP, PNG, or JPEG) is simple: File f = new File("c:\images\myimage.gif"); BufferedImage bi = ImageIO.read(f); • Image format will be auto-detected by the API based on the contents of the file. Java 9 - GUI

  7. Simple Image Processing • Writing an image in a supported format is equally simple: BufferedImage bi; …. processed … File f = new File("c:\images\myimage.png"); ImageIO.write(bi, "png", f); • The list of supported formats may be obtained by calling ImageIO.getReaderFormatNames() or ImageIO.getWriterFormatNames(). • This will return an array of Strings containing the names of the available formats. Java 9 - GUI

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