001: /*
002: $Id: ConsoleSupport.java 3018 2005-10-25 12:34:41Z alang $
003:
004: Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005:
006: Redistribution and use of this software and associated documentation
007: ("Software"), with or without modification, are permitted provided
008: that the following conditions are met:
009:
010: 1. Redistributions of source code must retain copyright
011: statements and notices. Redistributions must also contain a
012: copy of this document.
013:
014: 2. Redistributions in binary form must reproduce the
015: above copyright notice, this list of conditions and the
016: following disclaimer in the documentation and/or other
017: materials provided with the distribution.
018:
019: 3. The name "groovy" must not be used to endorse or promote
020: products derived from this Software without prior written
021: permission of The Codehaus. For written permission,
022: please contact info@codehaus.org.
023:
024: 4. Products derived from this Software may not be called "groovy"
025: nor may "groovy" appear in their names without prior written
026: permission of The Codehaus. "groovy" is a registered
027: trademark of The Codehaus.
028:
029: 5. Due credit should be given to The Codehaus -
030: http://groovy.codehaus.org/
031:
032: THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033: ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034: NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035: FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
036: THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
037: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
042: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043: OF THE POSSIBILITY OF SUCH DAMAGE.
044:
045: */
046: package groovy.ui;
047:
048: import groovy.lang.GroovyShell;
049:
050: import java.awt.Color;
051:
052: import javax.swing.JTextPane;
053: import javax.swing.text.Style;
054: import javax.swing.text.StyleConstants;
055: import javax.swing.text.StyleContext;
056: import javax.swing.text.StyledDocument;
057:
058: /**
059: * Base class for console
060: *
061: * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
062: * @version $Revision: 3018 $
063: */
064: public abstract class ConsoleSupport {
065:
066: Style promptStyle;
067: Style commandStyle;
068: Style outputStyle;
069: private GroovyShell shell;
070: int counter;
071:
072: protected void addStylesToDocument(JTextPane outputArea) {
073: StyledDocument doc = outputArea.getStyledDocument();
074:
075: Style def = StyleContext.getDefaultStyleContext().getStyle(
076: StyleContext.DEFAULT_STYLE);
077:
078: Style regular = doc.addStyle("regular", def);
079: StyleConstants.setFontFamily(def, "Monospaced");
080:
081: promptStyle = doc.addStyle("prompt", regular);
082: StyleConstants.setForeground(promptStyle, Color.BLUE);
083:
084: commandStyle = doc.addStyle("command", regular);
085: StyleConstants.setForeground(commandStyle, Color.MAGENTA);
086:
087: outputStyle = doc.addStyle("output", regular);
088: StyleConstants.setBold(outputStyle, true);
089: }
090:
091: public Style getCommandStyle() {
092: return commandStyle;
093: }
094:
095: public Style getOutputStyle() {
096: return outputStyle;
097: }
098:
099: public Style getPromptStyle() {
100: return promptStyle;
101: }
102:
103: public GroovyShell getShell() {
104: if (shell == null) {
105: shell = new GroovyShell();
106: }
107: return shell;
108: }
109:
110: protected Object evaluate(String text) {
111: String name = "Script" + counter++;
112: try {
113: return getShell().evaluate(text, name);
114: } catch (Exception e) {
115: handleException(text, e);
116: return null;
117: }
118: }
119:
120: protected abstract void handleException(String text, Exception e);
121: }
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