fcms-widgets

Small collection of useful Java widgets and utility classes.

Utility classes

• Package nz.ac.waikato.cms.core

  • BrowserHelper - for launching browsers with URLs
  • FileUtils - methods for closing streams/readers, file extension handling
  • OS - determining underlying OS (Android/Linux/Mac/Windows)
  • PropsUtils - for loading/saving properties files

• Package nz.ac.waikato.cms.gui.core

  • GUIHelper - methods for determining parent components, loading images/icons, etc.
  • JListHelper - methods for moving elements in JList
  • JTableHelper - methods calculating column widhts of a JTable
  • KeyUtils - convenience methods for KeyEvent events
  • MouseUtils - convenience methods for MouseEvent events

Widgets

• Package nz.ac.waikato.cms.gui.core

  • ApprovalDialog - dialog template for dialogs with Approve/Cancel/Discard buttons (can be individually renamed, hidden/displayed)
  • BaseDialog - dialog with 3-part initialization (initialize, initGUI, finishInit), hook methods for show (beforeShow, afterShow) and hide (beforeHide, afterHide)
  • BaseDirectoryChooser - directory chooser with bookmarks panel (based on JFileChooser)
  • BaseFileChooser - file chooser with bookmarks panel
  • BaseFrame - frame with 3-part initialization (initialize, initGUI, finishInit)
  • BasePanel - panel with 3-part initialization (initialize, initGUI, finishInit)
  • BaseScrollPane - scroll pane with sensible scroll units
  • BaseTextPane - extended javax.swing.JTextPane making it easy to append lines with different fonts/colors
  • BaseTextPaneWithWordWrap - extended BaseTextPane supporting word wrap
  • DetachablePanel - meta-panel that can detach the content in a separate dialog (and then re-attach it again)
  • DialogWithButtons - dialog with panel at bottom of window for easy placement of buttons
  • DirectoryChooserPanel - text field with associated button for selecting directory
  • FileChooserPanel - text field with associated button for selecting file
  • FontChooser - a chooser dialog for fonts
  • FontChooserPanel - panel that allows selection of fonts via a FontChooser dialog
  • FontChooserPanelWithPreview - previews the selected font with some sample text
  • MultiPagePane - pane that works like javax.swing.JTabbedPane, but lists the pages on the left-hand side (better use of space on widescreen monitors)
  • ParameterPanel - panel for displaying multiple parameters to be entered
  • PropertiesParameterPanel - based on ParameterPanel, but backed by java.util.Properties for getting/setting the parameters
  • SetupPanel - ancestor for panels that load/save setups from/to properties files
  • SimpleDirectoryChooser - directory chooser with a more intuitive interface, similar API to JFileChooser

Examples

ApprovalDialog

import javax.swing.JLabel;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import nz.ac.waikato.cms.gui.core.ApprovalDialog;
...
// panel with content to display, e.g, a question
JPanel panel = new JPanel(new BorderLayout());
panel.add(new JLabel("Some question to ask?"), BorderLayout.CENTER);

// configure and display dialog
ApprovalDialog dialog = new ApprovalDialog((java.awt.Frame) null, true);
dialog.setDefaultCloseOperation(ApprovalDialog.DISPOSE_ON_CLOSE);
dialog.setTitle("Please confirm");
dialog.getContentPane().add(panel, BorderLayout.CENTER);
dialog.pack();
dialog.setLocationRelativeTo(null);
dialog.setVisible(true);
if (dialog.getOption() == ApprovalDialog.APPROVE_OPTION)
  System.out.println("Approved!");
else
  System.out.println("Nope...");

PropertiesParameterPanel

import nz.ac.waikato.cms.gui.core.ApprovalDialog;
import nz.ac.waikato.cms.gui.core.GUIHelper;
import nz.ac.waikato.cms.gui.core.PropertiesParameterPanel;
import nz.ac.waikato.cms.gui.core.PropertiesParameterPanel.PropertyType;
import java.util.Properties;
...
PropertiesParameterPanel panel = new PropertiesParameterPanel();

// properties
panel.addPropertyType("name", PropertyType.STRING);
panel.setLabel("name", "New name");
panel.setHelp("name", "The name for the environment");

panel.addPropertyType("java", PropertyType.FILE);
panel.setLabel("java", "Java executable");
panel.setHelp("java", "System default is used when pointing to a directory");

panel.addPropertyType("memory", PropertyType.STRING);
panel.setLabel("memory", "Heap size");
panel.setHelp("memory", "System default is used when empty");

panel.addPropertyType("weka", PropertyType.FILE);
panel.setLabel("weka", "Weka jar");
panel.setHelp("weka", "The weka jar to use for the environment, cannot be empty");

// define order of parameters
panel.setPropertyOrder(new String[]{
  "name",
  "java",
  "memory",
  "weka",
});

// initial values
Properties props = new Properties();
props.setProperty("name", "coolname");
props.setProperty("java", "/usr/bin/java");
props.setProperty("memory", "4g");
props.setProperty("weka", "/some/where/weka.jar");
panel.setProperties(props);

// configure dialog and prompt user
ApprovalDialog dialog = new ApprovalDialog((java.awt.Frame) null, true);
dialog.setDefaultCloseOperation(ApprovalDialog.DISPOSE_ON_CLOSE);
dialog.setTitle("Enter parameters");
dialog.getContentPane().add(panel, BorderLayout.CENTER);
dialog.pack();
dialog.setLocationRelativeTo(null);
dialog.setVisible(true);

// output user provided parameters
if (dialog.getOption() == ApprovalDialog.APPROVE_OPTION)
  System.out.println(panel.getProperties());
else
  System.out.println("Canceled");

Maven

Add the following dependency to your pom.xml:

    <dependency>
      <groupId>com.github.waikato</groupId>
      <artifactId>fcms-widgets</artifactId>
      <version>0.0.26</version>
    </dependency>