Java字型選擇對話方塊
阿新 • • 發佈:2019-01-30
/** * 字型選擇對話方塊。 * * @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, "你選擇的字型名稱:" + fontName + ",字型樣式:" + fontStyle + ",字型大小:" + 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(); } }); } } // 初始化字型名稱 GraphicsEnvironment ge = GraphicsEnvironment .getLocalGraphicsEnvironment(); String[] fontNames = ge.getAvailableFontFamilyNames(); fontNameBox.setModel(new DefaultComboBoxModel(fontNames)); // 初始化字型樣式 String[] fontStyles = { "常規", "斜體", "粗體", "粗斜體" }; fontStyleBox.setModel(new DefaultComboBoxModel(fontStyles)); // 初始化字型大小 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("常規")) { return Font.PLAIN; } if (fontStyle.equals("斜體")) { return Font.ITALIC; } if (fontStyle.equals("粗體")) { return Font.BOLD; } if (fontStyle.equals("粗斜體")) { return Font.BOLD + Font.ITALIC; } return -1; } }