standardtoolbar.java

具有不同语法高亮的编辑器实例

/*
 * 11/14/2003
 *
 * StandardToolBar.java - Toolbar used by RText.
 * Copyright (C) 2003 Robert Futrell
 * [e-mail]
 * www.website.com
 *
 * This file is a part of RText.
 *
 * RText is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * RText is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.fife.rtext;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.Insets;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.net.URLClassLoader;
import java.util.ResourceBundle;
import javax.swing.Action;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JToolBar;

import org.fife.ui.CustomizableToolBar;
import org.fife.ui.rtextarea.IconGroup;
import org.fife.ui.rtextarea.RTextArea;


/**
 * The toolbar used by <code>org.fife.rtext.RText</code>.
 *
 * @author Robert Futrell
 * @version 1.0
 */
class StandardToolBar extends CustomizableToolBar {

	private JButton newButton;
	private JButton openButton;
	private JButton saveButton;
	private JButton saveAllButton;
	private JButton closeButton;
	private JButton printButton;
	private JButton printPreviewButton;
	private JButton cutButton;
	private JButton copyButton;
	private JButton pasteButton;
	private JButton deleteButton;
	private JButton findButton;
	private JButton findNextButton;
	private JButton replaceButton;
	private JButton replaceNextButton;
	private JButton undoButton;
	private JButton redoButton;

	private RText owner;
	private boolean mouseInNewButton;


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


	/**
	 * Creates the tool bar.
	 *
	 * @param title The title of this toolbar when it is floating.
	 * @param rtext The main application that owns this toolbar.
	 * @param mouseListener The status bar that displays a status message
	 *        when the mouse hovers over this toolbar.
	 */
	public StandardToolBar(String title, RText rtext,StatusBar mouseListener) {

		super(title);

		this.owner = rtext;
		AbstractMainView mainView = owner.getMainView();
		ResourceBundle msg = rtext.getResourceBundle();

		// Add the standard buttons.

		newButton = new JButton(rtext.getAction(RText.NEW_ACTION));
		configure(newButton, mouseListener, msg.getString("DescNew"));
		add(newButton);
		newButton.addFocusListener(new NewButtonFocusListener());
		newButton.addMouseListener(new NewButtonMouseListener());

		openButton = new JButton(rtext.getAction(RText.OPEN_ACTION));
		configure(openButton, mouseListener, msg.getString("DescOpen"));
		add(openButton);

		saveButton = new JButton(rtext.getAction(RText.SAVE_ACTION));
		configure(saveButton, mouseListener, msg.getString("DescSave"));
		add(saveButton);

		saveAllButton = new JButton(rtext.getAction(RText.SAVE_ALL_ACTION));
		configure(saveAllButton, mouseListener, msg.getString("DescSaveAll"));
		add(saveAllButton);

		closeButton = new JButton(mainView.getAction(AbstractMainView.CLOSE_ACTION));
		configure(closeButton, mouseListener, msg.getString("DescClose"));
		add(closeButton);

		addSeparator();

		printButton = new JButton(mainView.getAction(AbstractMainView.PRINT_ACTION));
		configure(printButton, mouseListener, msg.getString("DescPrint"));
		add(printButton);

		printPreviewButton = new JButton(mainView.getAction(AbstractMainView.PRINT_PREVIEW_ACTION));
		configure(printPreviewButton, mouseListener, msg.getString("DescPrintPreview"));
		add(printPreviewButton);

		addSeparator();

		cutButton = new JButton(RTextArea.getAction(RTextArea.CUT_ACTION));
		configure(cutButton, mouseListener, msg.getString("DescCut"));
		add(cutButton);

		copyButton = new JButton(RTextArea.getAction(RTextArea.COPY_ACTION));
		configure(copyButton, mouseListener, msg.getString("DescCopy"));
		add(copyButton);

		pasteButton = new JButton(RTextArea.getAction(RTextArea.PASTE_ACTION));
		configure(pasteButton, mouseListener, msg.getString("DescPaste"));
		add(pasteButton);

		deleteButton = new JButton(RTextArea.getAction(RTextArea.DELETE_ACTION));
		configure(deleteButton, mouseListener, msg.getString("DescDelete"));
		add(deleteButton);

		addSeparator();

		findButton = new JButton(mainView.getAction(AbstractMainView.FIND_ACTION));
		configure(findButton, mouseListener, msg.getString("DescFind"));
		add(findButton);

		findNextButton = new JButton(mainView.getAction(AbstractMainView.FIND_NEXT_ACTION));
		configure(findNextButton, mouseListener, msg.getString("DescFindNext"));
		add(findNextButton);

		replaceButton = new JButton(mainView.getAction(AbstractMainView.REPLACE_ACTION));
		configure(replaceButton, mouseListener, msg.getString("DescReplace"));
		add(replaceButton);

		replaceNextButton = new JButton(mainView.getAction(AbstractMainView.REPLACE_NEXT_ACTION));
		configure(replaceNextButton, mouseListener, msg.getString("DescReplaceNext"));
		add(replaceNextButton);

		addSeparator();

		undoButton = new JButton(RTextArea.getAction(RTextArea.UNDO_ACTION));
		configure(undoButton, mouseListener, msg.getString("DescUndo"));
		// Necessary to keep button size from changing when undo text changes.
		undoButton.putClientProperty("hideActionText", Boolean.TRUE);
		add(undoButton);

		redoButton = new JButton(RTextArea.getAction(RTextArea.REDO_ACTION));
		configure(redoButton, mouseListener, msg.getString("DescRedo"));
		// Necessary to keep button size from changing when undo text changes.
		redoButton.putClientProperty("hideActionText", Boolean.TRUE);
		add(redoButton);

		// Make the toolbar have the right-click customize menu.
		makeCustomizable();

	}


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


	/**
	 * Checks whether the current icon group has large icons, and if it does,
	 * uses these large icons for the toolbar.
	 */
	void checkForLargeIcons() {
		IconGroup group = owner.getIconGroup();
		if (group.hasSeparateLargeIcons()) {
			Icon icon = group.getLargeIcon("new");
			newButton.setIcon(icon);
			icon = group.getLargeIcon("open");
			openButton.setIcon(icon);
			icon = group.getLargeIcon("save");
			saveButton.setIcon(icon);
			icon = group.getLargeIcon("saveall");
			saveAllButton.setIcon(icon);
			icon = group.getLargeIcon("close");
			closeButton.setIcon(icon);
			icon = group.getLargeIcon("print");
			printButton.setIcon(icon);
			icon = group.getLargeIcon("printpreview");
			printPreviewButton.setIcon(icon);
			icon = group.getLargeIcon("cut");
			cutButton.setIcon(icon);
			icon = group.getLargeIcon("copy");
			copyButton.setIcon(icon);
			icon = group.getLargeIcon("paste");
			pasteButton.setIcon(icon);
			icon = group.getLargeIcon("delete");
			deleteButton.setIcon(icon);
			icon = group.getLargeIcon("find");
			findButton.setIcon(icon);
			icon = group.getLargeIcon("findnext");
			findNextButton.setIcon(icon);
			icon = group.getLargeIcon("replace");
			replaceButton.setIcon(icon);
			icon = group.getLargeIcon("replacenext");
			replaceNextButton.setIcon(icon);
			icon = group.getLargeIcon("undo");
			undoButton.setIcon(icon);
			icon = group.getLargeIcon("redo");
			redoButton.setIcon(icon);
		}
	}


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


	/**
	 * Configures the specified menu bar button.
	 *
	 * @param button The button.
	 * @param mouseListener A mouse listener to add.
	 * @param desc A description of the button's action.
	 */
private Insets emptyInsets = new Insets(0,0,0,0);
	private final void configure(JButton button, StatusBar mouseListener,
							String desc) {
		button.setMargin(emptyInsets);
		button.setText(null);
		button.setHorizontalTextPosition(JButton.CENTER);
		button.setVerticalTextPosition(JButton.BOTTOM);
		button.getAccessibleContext().setAccessibleDescription(desc);
		button.addMouseListener(mouseListener);
	}


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


	/**
	 * This class keeps track of whether or not the mouse position is inside
	 * the "New" button's bounds.  This is part of an elaborate hack to fix
	 * what seems to be a focus issue (bug) in JRE1.4.  Note that in JRE 1.5,
	 * it does not happen.
	 *
	 * What happens is this:  Whenever the user clicks on a tab to change the
	 * current document, the focused component gets switched not to the text
	 * area corresponding to the tab they clicked, but rather the "New" button
	 * on the toolbar (actually, it gets switched to the text area, then to the
	 * New button).  This behavior stops if the user changes the Look and Feel.
	 */
	private class NewButtonMouseListener extends MouseAdapter {

		public void mouseEntered(MouseEvent e) {
			mouseInNewButton = true;
		}

		public void mouseExited(MouseEvent e) {
			mouseInNewButton = false;
		}

	}


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


	/**
	 * This is the second part of the elaborate focus hack.  Whenever the New
	 * toolbar button gets focus, we check to see if the mouse position is
	 * inside the New button's bounds.  If it isn't, then we assume that the
	 * event was fired as a result of the situation described in
	 * NewButtonMouseListener's blurb, and so we give focus back to the current
	 * text area.
	 */
	private class NewButtonFocusListener extends FocusAdapter {

		public void focusGained(FocusEvent e) {
			RTextEditorPane textArea = owner.getMainView().currentTextArea;
			if (!mouseInNewButton && textArea!=null)
				textArea.requestFocusInWindow();
		}

		public void focusLost(FocusEvent e) {
		}


	}


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

}