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Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/RadioButtonModelAdapter.java')
| -rw-r--r-- | common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/RadioButtonModelAdapter.java | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/RadioButtonModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/RadioButtonModelAdapter.java deleted file mode 100644 index 83d3113454..0000000000 --- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/RadioButtonModelAdapter.java +++ /dev/null @@ -1,151 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2009 Oracle. All rights reserved. - * This program and the accompanying materials are made available under the - * terms of the Eclipse Public License v1.0, which accompanies this distribution - * and is available at http://www.eclipse.org/legal/epl-v10.html. - * - * Contributors: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.common.utility.internal.model.value.swing; - -import org.eclipse.jpt.common.utility.internal.BidiFilter; -import org.eclipse.jpt.common.utility.internal.BidiTransformer; -import org.eclipse.jpt.common.utility.internal.model.value.FilteringWritablePropertyValueModel; -import org.eclipse.jpt.common.utility.internal.model.value.TransformationWritablePropertyValueModel; -import org.eclipse.jpt.common.utility.model.value.WritablePropertyValueModel; - -/** - * This javax.swing.ButtonModel can be used to keep a listener - * (e.g. a JRadioButton) in synch with a (typically shared) - * PropertyValueModel that holds one value out of a set of values. - * - * NOTE: Do *not* use this model with a ButtonGroup, since the - * shared value holder and the wrappers built by this adapter will - * keep the appropriate radio button checked. Also, this allows - * us to uncheck all the radio buttons in a group when the shared - * value is null. - */ -public class RadioButtonModelAdapter - extends ToggleButtonModelAdapter -{ - - // ********** constructors ********** - - /** - * Constructor - the value holder is required. - */ - public RadioButtonModelAdapter(WritablePropertyValueModel<Object> valueHolder, Object buttonValue, boolean defaultValue) { - super(buildBooleanHolder(valueHolder, buttonValue), defaultValue); - } - - /** - * Constructor - the value holder is required. - * The default value will be false. - */ - public RadioButtonModelAdapter(WritablePropertyValueModel<Object> valueHolder, Object buttonValue) { - super(buildBooleanHolder(valueHolder, buttonValue)); - } - - - // ********** static methods ********** - - /** - * Build up a set of wrappers that will convert the - * specified value holder and button value to/from a boolean. - * - * If the value holder's value matches the button value, - * the wrapper will return true. Likewise, if the value holder's - * value is set to true, the wrapper will set the value holder's - * value to the button value. - */ - public static WritablePropertyValueModel<Boolean> buildBooleanHolder(WritablePropertyValueModel<Object> valueHolder, Object buttonValue) { - WritablePropertyValueModel<Object> filteringPVM = new FilteringWritablePropertyValueModel<Object>(valueHolder, new RadioButtonFilter(buttonValue)); - return new TransformationWritablePropertyValueModel<Object, Boolean>(filteringPVM, new RadioButtonTransformer(buttonValue)); - } - - - // ********** overrides ********** - - /** - * The user cannot de-select a radio button - the user - * can only *select* a radio button. Only the model can - * cause a radio button to be de-selected. We use the - * ARMED flag to indicate whether we are being de-selected - * by the user. - */ - @Override - public void setSelected(boolean b) { - // do not allow the user to de-select a radio button - // radio buttons can - if ((b == false) && this.isArmed()) { - return; - } - super.setSelected(b); - } - - - // ********** inner classes ********** - - /** - * This filter will only pass through a new value to the wrapped - * value holder when it matches the configured button value. - */ - public static class RadioButtonFilter implements BidiFilter<Object> { - private Object buttonValue; - - public RadioButtonFilter(Object buttonValue) { - super(); - this.buttonValue = buttonValue; - } - - /** - * always return the wrapped value - */ - public boolean accept(Object value) { - return true; - } - - /** - * pass through the value to the wrapped property value model - * *only* when it matches our button value - */ - public boolean reverseAccept(Object value) { - return (value != null) && value.equals(this.buttonValue); - } - - } - - /** - * This transformer will convert the wrapped value to Boolean.TRUE - * when it matches the configured button value. - */ - public static class RadioButtonTransformer implements BidiTransformer<Object, Boolean> { - private Object buttonValue; - - public RadioButtonTransformer(Object buttonValue) { - super(); - this.buttonValue = buttonValue; - } - - /** - * if the wrapped value matches our button value return true, - * if it is some other value return false; - * but if it is null simply pass it through because it will cause the - * button model's default value to be used - */ - public Boolean transform(Object value) { - return (value == null) ? null : Boolean.valueOf(value.equals(this.buttonValue)); - } - - /** - * if the new value is true, pass through the our button value; - * otherwise pass through null - */ - public Object reverseTransform(Boolean value) { - return (value.booleanValue()) ? this.buttonValue : null; - } - - } - -} |