templateoptionpanel.java

具有不同语法高亮的编辑器实例

			contentPane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));

			JLabel idLabel = RUtilities.createLabel(msg,
									"ID", "IDMnemonic");
			idField = new JTextField(20);
			Document doc = idField.getDocument();
			doc.addDocumentListener(this);
			if (doc instanceof AbstractDocument) {
				((AbstractDocument)doc).setDocumentFilter(
					new TemplateNameDocumentFilter());
			}
			idLabel.setLabelFor(idField);
			JPanel temp = new JPanel();
			temp.setLayout(new BoxLayout(temp, BoxLayout.X_AXIS));
			temp.add(idLabel);
			temp.add(Box.createHorizontalStrut(5));
			temp.add(idField);
			temp.add(Box.createHorizontalGlue());
			JPanel temp2 = new JPanel(new BorderLayout());
			temp2.add(temp, BorderLayout.WEST);
			contentPane.add(temp2, BorderLayout.NORTH);

			temp = new JPanel(new GridLayout(2,1, 5,5));
			temp.setBorder(BorderFactory.createEmptyBorder(5,0,0,0));
			JLabel label = RUtilities.createLabel(msg,
							"BeforeCaretText", "BeforeCaretMnemonic");
			bcTextArea = new JTextArea(4, 30);
			label.setLabelFor(bcTextArea);
			RScrollPane sp = new RScrollPane(bcTextArea);
			temp2 = new JPanel(new BorderLayout());
			temp2.add(label, BorderLayout.NORTH);
			temp2.add(sp);
			temp.add(temp2);
			label = RUtilities.createLabel(msg, "AfterCaretText",
							"AfterCaretMnemonic");
			acTextArea = new JTextArea(4, 30);
			label.setLabelFor(acTextArea);
			sp = new RScrollPane(acTextArea);
			temp2 = new JPanel(new BorderLayout());
			temp2.add(label, BorderLayout.NORTH);
			temp2.add(sp);
			temp.add(temp2);
			contentPane.add(temp);

			temp = new JPanel();
			temp2 = new JPanel(new GridLayout(1,2, 5,5));
			okButton = RUtilities.createRButton(msg,
								"OK", "OKMnemonic");
			okButton.addActionListener(this);
			okButton.setEnabled(false);
			temp2.add(okButton);
			cancelButton = RUtilities.createRButton(msg,
								"Cancel", "CancelMnemonic");
			cancelButton.addActionListener(this);
			temp2.add(cancelButton);
			temp.add(temp2);
			contentPane.add(temp, BorderLayout.SOUTH);

			setContentPane(contentPane);
			setLocationRelativeTo(TemplateOptionPanel.this);
			setModal(true);
			getRootPane().setDefaultButton(okButton);
			pack();

		}

		public void actionPerformed(ActionEvent e) {
			this.setVisible(false);
			Object source = e.getSource();
			if (source==okButton) {
				id = idField.getText().toCharArray();
				beforeCaret = bcTextArea.getText();
				afterCaret = acTextArea.getText();
			}
			else if (source==cancelButton) {
				id = null;
				beforeCaret = afterCaret = null;
			}
		}

		public void changedUpdate(DocumentEvent e) {
		}

		/**
		 * @return The after-caret text entered, or <code>null</code> if
		 *         the dialog was cancelled.
		 */
		public String getAfterCaretText() {
			return afterCaret;
		}

		/**
		 * @return The before-caret text entered, or <code>null</code> if
		 *         the dialog was cancelled.
		 */
		public String getBeforeCaretText() {
			return beforeCaret;
		}

		/**
		 * @return The id entered, or <code>null</code> if
		 *         the dialog was cancelled.
		 */
		public char[] getID() {
			return id;
		}

		public Object[] getNewRowInfo(Object[] oldData) {
			if (oldData==null) { // Adding a new row.
				setTitle(msg.getString("AddTemplateTitle"));
				setID(null);
				setBeforeCaretText(null);
				setAfterCaretText(null);
			}
			else { // Modifying a row.
				setTitle(msg.getString("ModifyTemplateTitle"));
				setID((String)oldData[0]);
				CodeTemplate template = (CodeTemplate)oldData[1];
				setBeforeCaretText(template.getBeforeCaretText());
				setAfterCaretText(template.getAfterCaretText());
			}
			setVisible(true);
			char[] id = getID();
			Object[] objs = null;
			if (id!=null) {
				String idString = new String(id);
				objs = new Object[] { idString,
						new CodeTemplate(idString,
									getBeforeCaretText(),
									getAfterCaretText())
				};
			}
			return objs;
		}

		public void insertUpdate(DocumentEvent e) {
			if (!okButton.isEnabled())
				okButton.setEnabled(true);
		}

		public void removeUpdate(DocumentEvent e) {
			int length = idField.getDocument().getLength();
			if (length==0)
				okButton.setEnabled(false);
		}

		public void setAfterCaretText(String text) {
			acTextArea.setText(text);
		}

		public void setBeforeCaretText(String text) {
			bcTextArea.setText(text);
		}

		public void setID(String id) {
			idField.setText(id);
		}

		public boolean shouldRemoveRow(int row) {
			return true;
		}

	}


/*****************************************************************************/


	/**
	 * A document filter that only allows letters, numbers, and
	 * '_' to go through.
	 */
	class TemplateNameDocumentFilter extends DocumentFilter {

		private final String cleanse(String text) {
			boolean beep = false;
			if (text!=null) {
				int length = text.length();
				for (int i=0; i<length; i++) {
					if (!RSyntaxUtilities.
						isLetterOrDigit(text.charAt(i)) &&
							text.charAt(i)!='_') {
						text = text.substring(0,i) + text.substring(i+1);
						i--;
						length--;
						beep = true;
					}
				}
			}
			if (beep)
				UIManager.getLookAndFeel().provideErrorFeedback(null);
			return text;
		}

		public void insertString(DocumentFilter.FilterBypass fb,
					int offset, String text, AttributeSet attr)
						throws BadLocationException {
			fb.insertString(offset, cleanse(text), attr);
		}

		public void remove(DocumentFilter.FilterBypass fb,
					int offset, int length)
						throws BadLocationException {
			fb.remove(offset, length);
		}

		public void replace(DocumentFilter.FilterBypass fb,
				int offset, int length, String text, AttributeSet attr)
						throws BadLocationException {
			fb.replace(offset, length, cleanse(text), attr);
		}

	}


/*****************************************************************************/


	/**
	 * Table data for the "templates" table.
	 */
	class TemplateTableModel extends DefaultTableModel {

		/**
	 * 
	 */
	private static final long serialVersionUID = -2857623546361968293L;
		public String[] columnNames;

		public TemplateTableModel(String templateHeader,
						String expansionHeader) {
			super();
			columnNames = new String[2];
			columnNames[0] = templateHeader;
			columnNames[1] = expansionHeader;
		}

		public int getColumnCount() {
			return columnNames.length;
		}

		public String getColumnName(int column) {
			return columnNames[column];
		}

		/**
		 * Always returns false; modifications are made via the buttons
		 * on the panel.
		 *
		 * @return <code>false</code> always.
		 */
		public boolean isCellEditable(int row, int column) {
			return false;
		}

		/**
		 * Sets this table's contents to be the templates known by the
		 * specified template manager.
		 */
		public void setTemplates(CodeTemplateManager manager) {
			setRowCount(0);
			if (manager!=null) {
				CodeTemplate[] templates = manager.getTemplates();
				int count = templates.length;
				for (int i=0; i<count; i++) {
					tableModel.addRow(new Object[] {
							new String(templates[i].getID()),
							// Deep copy.
							new CodeTemplate(templates[i])
						});
				}
			}
		}

	}


/*****************************************************************************/

}