Java字体选择对话框

 

/**
 * 字体选择对话框。
 * 
 * @author lucky star
 * 
 */
public class FontDialog extends JDialog {

	private final JPanel contentPanel = new JPanel();
	private JComboBox fontNameBox = null;
	private JComboBox fontStyleBox = null;
	private JComboBox fontSizeBox = null;
	private JTextArea txtrHereIs = null;

	private String fontName;
	private String fontStyle;
	private String fontSize;
	private int fontSty;
	private int fontSiz;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		try {
			FontDialog dialog = new FontDialog();
			dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
			dialog.setVisible(true);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * Create the dialog.
	 */
	public FontDialog() {
		setTitle("\u5B57\u4F53");
		setBounds(100, 100, 483, 234);
		getContentPane().setLayout(new BorderLayout());
		contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
		getContentPane().add(contentPanel, BorderLayout.CENTER);
		contentPanel.setLayout(null);
		{
			JLabel lblf = new JLabel("\u5B57\u4F53(F):");
			lblf.setBounds(0, 10, 54, 15);
			contentPanel.add(lblf);
		}
		{
			JLabel lbly = new JLabel("\u5B57\u5F62(Y):");
			lbly.setBounds(182, 10, 54, 15);
			contentPanel.add(lbly);
		}
		{
			JLabel lbls = new JLabel("\u5927\u5C0F(S):");
			lbls.setBounds(315, 10, 54, 15);
			contentPanel.add(lbls);
		}
		{
			JLabel label = new JLabel("\u663E\u793A\u6548\u679C:");
			label.setBounds(126, 82, 64, 15);
			contentPanel.add(label);
		}

		Panel panel = new Panel();
		panel.setBounds(196, 40, 228, 113);
		contentPanel.add(panel);
		panel.setLayout(null);
		{
			txtrHereIs = new JTextArea();
			txtrHereIs.setBounds(39, 38, 177, 44);
			txtrHereIs
					.setText("\u8FD9\u91CC\u663E\u793A\u9884\u89C8\r\nHere is the preview");
			panel.add(txtrHereIs);
		}
		{
			fontNameBox = new JComboBox();
			fontNameBox.setBounds(49, 7, 123, 21);
			contentPanel.add(fontNameBox);
			fontNameBox.addItemListener(new ItemListener() {
				public void itemStateChanged(ItemEvent itemevent) {
					fontName = (String) itemevent.getItem();
					System.out.println(fontName);

					// change preview
					Font f = new Font(fontName, fontSty, fontSiz);
					txtrHereIs.setFont(f);
				}
			});
		}
		{
			fontStyleBox = new JComboBox();
			fontStyleBox.setBounds(232, 7, 73, 21);
			contentPanel.add(fontStyleBox);
			fontStyleBox.addItemListener(new ItemListener() {
				public void itemStateChanged(ItemEvent itemevent) {
					fontStyle = (String) itemevent.getItem();
					fontSty = getFontStyleByCnName(fontStyle);
					// change preview
					Font f = new Font(fontName, fontSty, fontSiz);
					txtrHereIs.setFont(f);
				}
			});
		}
		{
			fontSizeBox = new JComboBox();
			fontSizeBox.setBounds(379, 7, 78, 21);
			contentPanel.add(fontSizeBox);
			fontSizeBox.addItemListener(new ItemListener() {
				public void itemStateChanged(ItemEvent itemevent) {
					fontSize = (String) itemevent.getItem();
					fontSiz = Integer.parseInt(fontSize);

					// change preview
					Font f = new Font(fontName, fontSty, fontSiz);
					txtrHereIs.setFont(f);
				}
			});
		}
		{
			JPanel buttonPane = new JPanel();
			buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT));
			getContentPane().add(buttonPane, BorderLayout.SOUTH);
			{
				JButton okButton = new JButton("\u786E\u5B9A");
				okButton.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent actionevent) {
						int fontSty = getFontStyleByCnName(fontStyle);
						int fontSiz = Integer.parseInt(fontSize);
						JOptionPane.showMessageDialog(FontDialog.this,
								"你选择的字体名称：" + fontName + ",字体样式：" + fontStyle
										+ ",字体大小：" + fontSiz, "提示",
								JOptionPane.CLOSED_OPTION);

					}
				});
				okButton.setActionCommand("OK");
				buttonPane.add(okButton);
				getRootPane().setDefaultButton(okButton);
			}
			{
				JButton cancelButton = new JButton("\u53D6\u6D88");
				cancelButton.setActionCommand("Cancel");
				buttonPane.add(cancelButton);
				cancelButton.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent actionevent) {
						FontDialog.this.dispose();
					}
				});
			}
		}

		// 初始化字体名称
		GraphicsEnvironment ge = GraphicsEnvironment
				.getLocalGraphicsEnvironment();
		String[] fontNames = ge.getAvailableFontFamilyNames();
		fontNameBox.setModel(new DefaultComboBoxModel(fontNames));
		// 初始化字体样式
		String[] fontStyles = { "常规", "斜体", "粗体", "粗斜体" };
		fontStyleBox.setModel(new DefaultComboBoxModel(fontStyles));
		// 初始化字体大小
		String[] fontSizes = { "8", "9", "10", "11", "12", "14", "16", "18",
				"20", "22", "24", "26", "28", "36", "48", "72" };
		fontSizeBox.setModel(new DefaultComboBoxModel(fontSizes));
		System.out.println("finish.");

		fontSizeBox.setSelectedIndex(4);
		fontStyle = (String) fontStyleBox.getSelectedItem();
		fontSize = (String) fontSizeBox.getSelectedItem();
		fontSty = getFontStyleByCnName(fontStyle);
		fontSiz = Integer.parseInt(fontSize);
	}

	public static int getFontStyleByCnName(String fontStyle) {
		if (fontStyle.equals("常规")) {
			return Font.PLAIN;
		}
		if (fontStyle.equals("斜体")) {
			return Font.ITALIC;
		}
		if (fontStyle.equals("粗体")) {
			return Font.BOLD;
		}
		if (fontStyle.equals("粗斜体")) {
			return Font.BOLD + Font.ITALIC;
		}
		return -1;
	}
}