findinfilesdialog.java

具有不同语法高亮的编辑器实例

			setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));

			// Re-enable the buttons since the user can do stuff again.
			setSearching(false);

			// If searching completed normally (e.g., wasn't terminated).
			if (time!=-1) {

				// Make the status bar indicate that searching completed.
				String temp = MessageFormat.format(searchingCompleteString,
								new Object[] { ""+(time/1000.0f) });
				setStatusText(temp);

				// Update the results list and notify the user if the
				// message wasn't found at all.
				if (resultsTable.getRowCount()==0) {
					String searchString = (String)findTextComboBox.
												getSelectedItem();
					JOptionPane.showMessageDialog(FindInFilesDialog.this,
						resources.getString("SearchStringNotFound") +
												searchString + "'.",
						resources.getString("InfoDialogTitle"),
						JOptionPane.INFORMATION_MESSAGE);
				}

			}

			resultsTable.refreshColumnWidths();
			resultsTable.revalidate();

		}});

	}


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


	/**
	 * This function should be called to update match case, whole word, etc.
	 *
	 * @param searchString The text the user wants to search for.
	 * @param matchCase Whether the "match case" checkbox should be checked.
	 * @param wholeWord Whether the "whole word" checkbox should be checked.
	 */
	public void setSearchParameters(String searchString, boolean matchCase,
								boolean wholeWord, boolean regExp) {
		findTextComboBox.addItem(searchString);
		findTextComboBox.setSelectedIndex(0);
		caseCheckBox.setSelected(matchCase);
		wholeWordCheckBox.setSelected(wholeWord);
		regExpCheckBox.setSelected(regExp);
	}


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


	/**
	 * This function should be called to update match case, whole word, etc.
	 */
	public void setSearchParameters(Vector findComboBoxStrings,
					boolean matchCase, boolean wholeWord, boolean regExp) {
		findTextComboBox.removeAllItems();
		int size = findComboBoxStrings.size();
		for (int i=size-1; i>=0; i--) {
			findTextComboBox.addItem(findComboBoxStrings.get(i));
		}
		if (size>0)
			findTextComboBox.setSelectedIndex(0);
		caseCheckBox.setSelected(matchCase);
		wholeWordCheckBox.setSelected(wholeWord);
		regExpCheckBox.setSelected(regExp);
	}


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


	/**
	 * Enables or disables widgets in the dialog as appropriate.
	 *
	 * @param searching Whether searching is starting.
	 */
	protected void setSearching(boolean searching) {
		boolean enabled = !searching;
		findButton.setEnabled(enabled);
		browseButton.setEnabled(enabled);
		if (searching) {
			cancelButton.setText(resources.getString("Stop"));
			cancelButton.setMnemonic((int)resources.
								getString("StopMnemonic").charAt(0));
		}
		else {
			cancelButton.setText(resources.getString("Close"));
			cancelButton.setMnemonic((int)resources.
								getString("CloseMnemonic").charAt(0));
		}
		findTextComboBox.setEnabled(enabled);
		inFilesComboBox.setEnabled(enabled);
		inFolderTextField.setEnabled(enabled);
	}


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


	/**
	 * Sets the <code>String</code> to search for.
	 *
	 * @param newSearchString The <code>String</code> to put into the
	 *        search field.
	 */
	public void setSearchString(String newSearchString) {
		findTextComboBox.addItem(newSearchString);
		findTextComboBox.setSelectedIndex(0);
	}


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


	/**
	 * Sets the text in the status bar.
	 *
	 * @param text The text to display.
	 */
	public void setStatusText(final String text) {
		// Check whether dialog is visible in case search table is
		// docked on another window.
		if (isVisible()) {
			if (SwingUtilities.isEventDispatchThread()) {
				statusBar.setStatusMessage(text);
			}
			else {
				SwingUtilities.invokeLater(new Runnable() {
					public void run() {
						statusBar.setStatusMessage(text);
					}
				});
			}
		}
	}


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


	/**
	 * Displays or hides the Find in Files dialog.  Note that you should use
	 * this method and not <code>show()</code> to properly display this dialog.
	 *
	 * @param visible Whether the dialog should be displayed or hidden.
	 */
	public void setVisible(boolean visible) {

		super.setVisible(visible);

		// If they're making the dialog visible, make sure the status text
		// is "Ready" and not something left over from the last time the
		// dialog was visible.
		if (visible==true) {
			setStatusText(defaultStatusText);
		}

		// Give the "Find" text field focus.
		if (SwingUtilities.isEventDispatchThread()) {
			findButton.setEnabled(enableFindButton());
			findTextComboBox.requestFocusInWindow();
			Component editor = getTextComponent(findTextComboBox);
			if (editor instanceof JTextComponent)
				((JTextComponent)editor).selectAll();
		}
		else {
			SwingUtilities.invokeLater(new Runnable() {
				public void run() {
					findButton.setEnabled(enableFindButton());
					findTextComboBox.requestFocusInWindow();
					Component editor = getTextComponent(findTextComboBox);
					if (editor instanceof JTextComponent)
						((JTextComponent)editor).selectAll();
				}
			});
		}

	}


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


	/**
	 * Synchronizes access to our "worker" thread.
	 *
	 * @param workerThread The new worker thread.
	 * @see #getWorkerThread
	 */
	private synchronized void setWorkerThread(FindInFilesThread thread) {
		this.workerThread = thread;
	}


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


	/**
	 * Called whenever the user changes the Look and Feel, etc.
	 * This is overridden so we can reinstate the listeners that are evidently
	 * lost on the JTextField portion of our combo box.
	*/
	public void updateUI() {

		// Create listeners for the combo boxes.
		FindInFilesFocusAdapter focusAdapter = new FindInFilesFocusAdapter();
		FindInFilesKeyListener keyListener = new FindInFilesKeyListener();
		FindInFilesDocumentListener docListener = new FindInFilesDocumentListener();

		// Fix the Find What combo box's listeners.
		JTextComponent textField = getTextComponent(findTextComboBox);
		textField.addFocusListener(focusAdapter);
		textField.addKeyListener(keyListener);
		textField.getDocument().addDocumentListener(docListener);

		// Fix the In Files combo box's listeners.
		textField = getTextComponent(inFilesComboBox);
		textField.addFocusListener(focusAdapter);
		textField.addKeyListener(keyListener);
		textField.getDocument().addDocumentListener(docListener);

		// Fix the In Folders combo box's listeners.
		inFolderTextField.addFocusListener(focusAdapter);
		inFolderTextField.getDocument().addDocumentListener(docListener);

	}


/*****************************************************************************/
/**************************** PRIVATE INNER CLASSES **************************/
/*****************************************************************************/


	/**
	 * Listens for changes in the "Find what" text field.
	 */
	private class FindInFilesDocumentListener implements DocumentListener {

		public void insertUpdate(DocumentEvent e) {
			findButton.setEnabled(enableFindButton());
		}

		public void removeUpdate(DocumentEvent e) {
			findButton.setEnabled(enableFindButton());
		}

		public void changedUpdate(DocumentEvent e) {
		}

	}


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


	/**
	 * Listens for the text field gaining focus.
	 */
	private class FindInFilesFocusAdapter extends FocusAdapter {

		public void focusGained(FocusEvent e) {

			Component component = e.getComponent();
			((JTextField)component).selectAll();

			if (component==getTextComponent(findTextComboBox))
				// Remember what it originally was, in case they tabbed out.
				lastSearchString = (String)findTextComboBox.getSelectedItem();

			else if (component==getTextComponent(inFilesComboBox))
				// Remember what it originally was, in case they tabbed out.
				lastInFilesString = (String)inFilesComboBox.getSelectedItem();

		}

	}


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


	/**
	 * Listens for the user to double-click on the results JList.  This class
	 * is what sends out <code>FindInFilesEvent</code>s.
	 */
	class FindInFilesDialogMouseListener extends MouseAdapter {

		FindInFilesTable table;

		FindInFilesDialogMouseListener(FindInFilesTable table) {
			this.table = table;
		}

		public void mouseClicked(MouseEvent e) {
			if (e.getButton()==MouseEvent.BUTTON1 && e.getClickCount()==2) {
				int row = table.getSelectedRow();
				if (row==-1)
					return;
				MatchData data = table.getMatchDataForRow(row);
				String fileName = data.getFileName();
				// Might be a directory if Verbose is enabled.
				if (!(new File(fileName).isFile())) {
					UIManager.getLookAndFeel().provideErrorFeedback(null);
					return;
				}
				String lineStr = data.getLineNumber();
				int line = -1;
				if (!lineStr.equals("--")) { // e.g. "3" or "5-7".
					if (lineStr.indexOf('-')>-1) {
						lineStr =
							lineStr.substring(0, lineStr.indexOf('-'));
					}
					try {
						line = Integer.parseInt(lineStr);
					} catch (NumberFormatException nfe) {
						nfe.printStackTrace();
					}
				}
				fireFindInFilesEvent(new FindInFilesEvent(
							FindInFilesDialog.this, fileName, line));
			}
		}

	}


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


	/**
	 * Listens for key presses in the Find In Files dialog.
	 */
	private class FindInFilesKeyListener extends KeyAdapter {

		// Listens for a user releasing a key.
		public void keyReleased(KeyEvent e) {

			// This is an ugly hack to get around JComboBox's
			// insistance on eating the first Enter keypress
			// it receives when it has focus and its selected item
			// has changed since the last time it lost focus.
			if (e.getKeyCode()==KeyEvent.VK_ENTER) {

				Object source = e.getSource();

				// If they pressed Enter in the 'Find What' combo box.
				if (source==getTextComponent(findTextComboBox)) {
					String inFilesString = (String)inFilesComboBox.getSelectedItem();
					lastInFilesString = inFilesString;	// Just in case it changed too.
					String searchString = (String)findTextComboBox.getSelectedItem();
					if (searchString != lastSearchString) {
						findButton.doClick();
						lastSearchString = searchString;
						getTextComponent(findTextComboBox).selectAll();
					}
				}

				// If they pressed enter in the 'In Files' combo box.
				else if (source==getTextComponent(inFilesComboBox)) {
					String searchString = (String)findTextComboBox.getSelectedItem();
					lastSearchString = searchString;	// Just in case it changed too.
					String inFilesString = (String)inFilesComboBox.getSelectedItem();
					if (inFilesString != lastInFilesString) {
						findButton.doClick();
						lastInFilesString = inFilesString;
						getTextComponent(inFilesComboBox).selectAll();
					}
				}

			}

		}

	}


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

}