| /* |
| * 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.swing.factory |
| |
| import javax.swing.* |
| import java.awt.* |
| |
| public class GridBagFactory extends LayoutFactory { |
| |
| public GridBagFactory() { |
| super(GridBagLayout, true) |
| } |
| |
| public void addLayoutProperties(context) { |
| addLayoutProperties(context, GridBagConstraints) |
| } |
| |
| |
| |
| public static void processGridBagConstraintsAttributes(FactoryBuilderSupport builder, Object node, Map attributes) { |
| // if we are not a component, don't do anything |
| if (!(node instanceof Component)) { |
| return |
| } |
| // an explicit constraints means don't do anything |
| def constraintsAttr = builder?.context?.getAt(LayoutFactory.DELEGATE_PROPERTY_CONSTRAINT) ?: LayoutFactory.DEFAULT_DELEGATE_PROPERTY_CONSTRAINT |
| if (attributes.containsKey(constraintsAttr)) { |
| return |
| } |
| // if there are cached constraints, don't do it again, we need to be idempotent... |
| if (builder.getContext().containsKey("constraints")) { |
| return |
| } |
| |
| |
| // next, check to be sure we are in an appropriate container |
| Object parent = builder.getCurrent() |
| if (parent instanceof RootPaneContainer) { |
| if (!(((RootPaneContainer)parent).getContentPane().getLayout() instanceof GridBagLayout)) { |
| return |
| } |
| } else if (parent instanceof Container) { |
| if (!(((Container)parent).getLayout() instanceof GridBagLayout)) { |
| return |
| } |
| } else { |
| return |
| } |
| |
| // next, look for matching attrs. |
| boolean anyAttrs = false |
| GridBagConstraints gbc = new GridBagConstraints() |
| Object o |
| |
| o = extractAttribute(attributes, "gridx", Number) |
| if (o != null) { |
| gbc.gridx = o |
| anyAttrs = true |
| } |
| o = extractAttribute(attributes, "gridy", Number) |
| if (o != null) { |
| gbc.gridy = o |
| anyAttrs = true |
| } |
| o = extractAttribute(attributes, "gridwidth", Number) |
| if (o != null) { |
| gbc.gridwidth = o |
| anyAttrs = true |
| } |
| o = extractAttribute(attributes, "gridheight", Number) |
| if (o != null) { |
| gbc.gridheight = o |
| anyAttrs = true |
| } |
| |
| o = extractAttribute(attributes, "weightx", Number) |
| if (o != null) { |
| gbc.weightx = o |
| anyAttrs = true |
| } |
| o = extractAttribute(attributes, "weighty", Number) |
| if (o != null) { |
| gbc.weighty = o |
| anyAttrs = true |
| } |
| |
| o = extractAttribute(attributes, "anchor", Number) |
| if (o != null) { |
| gbc.anchor = o |
| anyAttrs = true |
| } |
| o = extractAttribute(attributes, "fill", Number) |
| if (o != null) { |
| gbc.fill = o |
| anyAttrs = true |
| } |
| |
| o = extractAttribute(attributes, "insets", Object) |
| if (o != null) { |
| gbc.insets = o as Insets |
| anyAttrs = true |
| } |
| |
| o = extractAttribute(attributes, "ipadx", Number) |
| if (o != null) { |
| gbc.ipadx = o |
| anyAttrs = true |
| } |
| o = extractAttribute(attributes, "ipady", Number) |
| if (o != null) { |
| gbc.ipady = o |
| anyAttrs = true |
| } |
| |
| // if we find any attrs, stash the constraints |
| if (anyAttrs) { |
| builder.getContext().put("constraints", gbc) |
| } |
| } |
| |
| /** |
| * @return null if not found. |
| * null as a 'not found' works because all attrs except insets |
| * are primitive types, and insets will crash if set to null |
| */ |
| static Object extractAttribute(Map attrs, String name, Class type) { |
| if (attrs.containsKey(name)) { |
| Object o = attrs.get(name) |
| if ((o != null) && type.isAssignableFrom(type)) { |
| attrs.remove(name) |
| return o |
| } else { |
| return null |
| } |
| } else { |
| return null |
| } |
| } |
| } |