001 /* 002 $Id: ConsoleSupport.java,v 1.6 2005/10/25 12:34:41 alang Exp $ 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: 1.6 $ 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(StyleContext.DEFAULT_STYLE); 076 077 Style regular = doc.addStyle("regular", def); 078 StyleConstants.setFontFamily(def, "Monospaced"); 079 080 promptStyle = doc.addStyle("prompt", regular); 081 StyleConstants.setForeground(promptStyle, Color.BLUE); 082 083 commandStyle = doc.addStyle("command", regular); 084 StyleConstants.setForeground(commandStyle, Color.MAGENTA); 085 086 outputStyle = doc.addStyle("output", regular); 087 StyleConstants.setBold(outputStyle, true); 088 } 089 090 public Style getCommandStyle() { 091 return commandStyle; 092 } 093 094 public Style getOutputStyle() { 095 return outputStyle; 096 } 097 098 public Style getPromptStyle() { 099 return promptStyle; 100 } 101 102 public GroovyShell getShell() { 103 if (shell == null) { 104 shell = new GroovyShell(); 105 } 106 return shell; 107 } 108 109 protected Object evaluate(String text) { 110 String name = "Script" + counter++; 111 try { 112 return getShell().evaluate(text, name); 113 } 114 catch (Exception e) { 115 handleException(text, e); 116 return null; 117 } 118 } 119 120 protected abstract void handleException(String text, Exception e); 121 }