| /* |
| * 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 org.codehaus.groovy.runtime.InvokerHelper |
| |
| import javax.swing.* |
| import java.awt.* |
| import java.awt.image.BufferedImage |
| |
| class OutputTransforms { |
| |
| @Lazy static localTransforms = loadOutputTransforms() |
| |
| static loadOutputTransforms() { |
| def transforms = [] |
| |
| // |
| // load user local transforms |
| // |
| def userHome = new File(System.getProperty('user.home')) |
| def groovyDir = new File(userHome, '.groovy') |
| def userTransforms = new File(groovyDir, "OutputTransforms.groovy") |
| if (userTransforms.exists()) { |
| GroovyShell shell = new GroovyShell() |
| shell.setVariable('transforms', transforms) |
| shell.evaluate(userTransforms) |
| } |
| |
| // |
| // built-in transforms |
| // |
| |
| // any non-window GUI components, such as a heavyweight button or a |
| // Swing component, gets passed if it has no parent set (the parent |
| // clause is to keep buttons from disappearing from user shown forms) |
| transforms << { it -> if ((it instanceof Component) && !(it instanceof Window) && (it.parent == null)) it } |
| |
| // remaining components get printed to an image |
| transforms << { it -> |
| if (it instanceof javax.swing.JComponent) { |
| Dimension d = it.size |
| if (d.width == 0) { |
| d = it.preferredSize |
| it.size = d |
| } |
| |
| GraphicsEnvironment ge = GraphicsEnvironment.localGraphicsEnvironment |
| GraphicsDevice gs = ge.defaultScreenDevice |
| GraphicsConfiguration gc = gs.defaultConfiguration |
| |
| BufferedImage image = gc.createCompatibleImage(d.width as int, d.height as int, Transparency.TRANSLUCENT) |
| Graphics2D g2 = image.createGraphics() |
| it.print(g2) |
| g2.dispose() |
| new ImageIcon(image) |
| } |
| } |
| |
| // icons get passed, they can be rendered multiple times so no parent check |
| transforms << { it -> if (it instanceof Icon) it } |
| |
| // Images become ImageIcons |
| transforms << { it -> if (it instanceof Image) new ImageIcon(it)} |
| |
| // final case, non-nulls just get inspected as strings |
| transforms << { it -> if (it != null) "${InvokerHelper.inspect(it)}" } |
| |
| return transforms |
| } |
| |
| static transformResult(base, transforms = localTransforms) { |
| for (Closure c : transforms) { |
| def result = c(base as Object) |
| if (result != null) { |
| return result |
| } |
| } |
| return base |
| } |
| |
| } |