/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package groovy.ui;
import groovy.lang.
GroovyShell;
import javax.swing.*;
import javax.swing.text.
Style;
import javax.swing.text.
StyleConstants;
import javax.swing.text.
StyleContext;
import javax.swing.text.
StyledDocument;
import java.awt.*;
/**
* Base class for console
*
* @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
*/
public abstract class
ConsoleSupport {
Style promptStyle;
Style commandStyle;
Style outputStyle;
private
GroovyShell shell;
int
counter;
protected void
addStylesToDocument(
JTextPane outputArea) {
StyledDocument doc =
outputArea.
getStyledDocument();
Style def =
StyleContext.
getDefaultStyleContext().
getStyle(
StyleContext.
DEFAULT_STYLE);
Style regular =
doc.
addStyle("regular",
def);
StyleConstants.
setFontFamily(
def, "Monospaced");
promptStyle =
doc.
addStyle("prompt",
regular);
StyleConstants.
setForeground(
promptStyle,
Color.
BLUE);
commandStyle =
doc.
addStyle("command",
regular);
StyleConstants.
setForeground(
commandStyle,
Color.
MAGENTA);
outputStyle =
doc.
addStyle("output",
regular);
StyleConstants.
setBold(
outputStyle, true);
}
public
Style getCommandStyle() {
return
commandStyle;
}
public
Style getOutputStyle() {
return
outputStyle;
}
public
Style getPromptStyle() {
return
promptStyle;
}
public
GroovyShell getShell() {
if (
shell == null) {
shell = new
GroovyShell();
}
return
shell;
}
protected
Object evaluate(
String text) {
String name = "Script" +
counter++;
try {
return
getShell().
evaluate(
text,
name);
}
catch (
Exception e) {
handleException(
text,
e);
return null;
}
}
protected abstract void
handleException(
String text,
Exception e);
}