From aedc34d55462a75e329bbf342251ff6504cd117e Mon Sep 17 00:00:00 2001 From: Benjamin Culkin Date: Sun, 19 May 2024 17:56:33 -0400 Subject: Initial import from SVN --- .../wotonomy/ui/swing/RadioPanelAssociation.java | 457 +++++++++++++++++++++ 1 file changed, 457 insertions(+) create mode 100644 projects/net.wotonomy.ui.swing/src/main/java/net/wotonomy/ui/swing/RadioPanelAssociation.java (limited to 'projects/net.wotonomy.ui.swing/src/main/java/net/wotonomy/ui/swing/RadioPanelAssociation.java') diff --git a/projects/net.wotonomy.ui.swing/src/main/java/net/wotonomy/ui/swing/RadioPanelAssociation.java b/projects/net.wotonomy.ui.swing/src/main/java/net/wotonomy/ui/swing/RadioPanelAssociation.java new file mode 100644 index 0000000..d2e51ed --- /dev/null +++ b/projects/net.wotonomy.ui.swing/src/main/java/net/wotonomy/ui/swing/RadioPanelAssociation.java @@ -0,0 +1,457 @@ +/* +Wotonomy: OpenStep design patterns for pure Java applications. +Copyright (C) 2000 Intersect Software Corporation + +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public +License as published by the Free Software Foundation; either +version 2.1 of the License, or (at your option) any later version. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public +License along with this library; if not, see http://www.gnu.org +*/ + +package net.wotonomy.ui.swing; + +import java.awt.event.ActionEvent; +import java.awt.event.ActionListener; + +import net.wotonomy.foundation.NSArray; +import net.wotonomy.foundation.internal.ValueConverter; +import net.wotonomy.ui.EOAssociation; +import net.wotonomy.ui.EODisplayGroup; +import net.wotonomy.ui.swing.components.RadioButtonPanel; + +/** +* RadioPanelAssociation binds RadioButtonPanels to +* display groups. It works exactly like a +* ComboBoxAssociation. Bindings are: +* +* +* @author michael@mpowers.net +* @author $Author: cgruber $ +* @version $Revision: 904 $ +*/ +public class RadioPanelAssociation extends EOAssociation + implements ActionListener +{ + static final NSArray aspects = + new NSArray( new Object[] { + TitlesAspect, ValueAspect, + ObjectsAspect, EnabledAspect + } ); + static final NSArray aspectSignatures = + new NSArray( new Object[] { + AttributeToOneAspectSignature, + AttributeToOneAspectSignature, + AttributeToOneAspectSignature, + AttributeToOneAspectSignature + } ); + static final NSArray objectKeysTaken = + new NSArray( new Object[] { + "text" + } ); + + /** + * Constructor specifying the object to be controlled by this + * association. Does not establish connection. + */ + public RadioPanelAssociation ( Object anObject ) + { + super( anObject ); + } + + /** + * Returns a List of aspect signatures whose contents + * correspond with the aspects list. Each element is + * a string whose characters represent a capability of + * the corresponding aspect. + * An empty signature "" means that the aspect can + * bind without needing a key. + * This implementation returns "A1M" for each + * element in the aspects array. + */ + public static NSArray aspectSignatures () + { + return aspectSignatures; + } + + /** + * Returns a List that describes the aspects supported + * by this class. Each element in the list is the string + * name of the aspect. This implementation returns an + * empty list. + */ + public static NSArray aspects () + { + return aspects; + } + + /** + * Returns a List of EOAssociation subclasses that, + * for the objects that are usable for this association, + * are less suitable than this association. + */ + public static NSArray associationClassesSuperseded () + { + return new NSArray(); + } + + /** + * Returns whether this class can control the specified + * object. + */ + public static boolean isUsableWithObject ( Object anObject ) + { + return ( anObject instanceof RadioButtonPanel ); + } + + /** + * Returns a List of properties of the controlled object + * that are controlled by this class. For example, + * "stringValue", or "selected". + */ + public static NSArray objectKeysTaken () + { + return objectKeysTaken; + } + + /** + * Returns the aspect that is considered primary + * or default. This is typically "value" or somesuch. + */ + public static String primaryAspect () + { + return ValueAspect; + } + + /** + * Returns whether this association can bind to the + * specified display group on the specified key for + * the specified aspect. + */ + public boolean canBindAspect ( + String anAspect, EODisplayGroup aDisplayGroup, String aKey) + { + return ( aspects.containsObject( anAspect ) ); + } + + /** + * Establishes a connection between this association + * and the controlled object. Subclasses should begin + * listening for events from their controlled object here. + */ + public void establishConnection () + { + super.establishConnection(); + + // prepopulate titles + EODisplayGroup displayGroup = + displayGroupForAspect( TitlesAspect ); + if ( displayGroup != null ) + { + String key = displayGroupKeyForAspect( TitlesAspect ); + populateTitles( displayGroup, key ); + } + populateValue(); + addAsListener(); + } + + protected void addAsListener() + { + component().addActionListener( this ); + } + + /** + * Breaks the connection between this association and + * its object. Override to stop listening for events + * from the object. + */ + public void breakConnection () + { + removeAsListener(); + super.breakConnection(); + } + + protected void removeAsListener() + { + component().removeActionListener( this ); + } + + /** + * Called when either the selection or the contents + * of an associated display group have changed. + */ + public void subjectChanged () + { + removeAsListener(); + + RadioButtonPanel component = component(); + EODisplayGroup displayGroup; + String key; + + // titles aspect + displayGroup = displayGroupForAspect( TitlesAspect ); + if ( displayGroup != null ) + { + // if backing group has changed + if ( displayGroup.contentsChanged() ) + { + key = displayGroupKeyForAspect( TitlesAspect ); + populateTitles( displayGroup, key ); + } + } + + // value aspect + populateValue(); + + // enabled aspect + displayGroup = displayGroupForAspect( EnabledAspect ); + if ( displayGroup != null ) + { + key = displayGroupKeyForAspect( EnabledAspect ); + Object value = + displayGroup.selectedObjectValueForKey( key ); + Boolean converted = null; + if ( value != null ) + { + converted = (Boolean) + ValueConverter.convertObjectToClass( + value, Boolean.class ); + } + if ( converted == null ) converted = Boolean.FALSE; + if ( converted.booleanValue() != component.isEnabled() ) + { + component.setEnabled( converted.booleanValue() ); + } + } + + addAsListener(); + } + + /** + * Called to repopulate the title list from the + * specified display group. + */ + protected void populateTitles( + EODisplayGroup displayGroup, String key ) + { + Object value; + int count = displayGroup.displayedObjects().count(); + String[] titles = new String[ count ]; + for ( int i = 0; i < count; i++ ) + { + value = displayGroup.valueForObjectAtIndex( i, key ); + if ( value != null ) + { + titles[i] = value.toString(); + } + else + { + titles[i] = ""; + } + } + component().setLabels( titles ); + } + + /** + * Called to populate the value from the display group. + */ + protected void populateValue() + { + RadioButtonPanel component = component(); + EODisplayGroup displayGroup; + String key; + + // value aspect + displayGroup = displayGroupForAspect( ValueAspect ); + if ( displayGroup != null ) + { + key = displayGroupKeyForAspect( ValueAspect ); + component.setEnabled( + displayGroup.enabledToSetSelectedObjectValueForKey( key ) ); + + Object value = displayGroup.selectedObjectValueForKey( key ); + + // objects aspect + EODisplayGroup objectsDisplayGroup = + displayGroupForAspect( ObjectsAspect ); + if ( ( objectsDisplayGroup != null ) && ( value != null ) ) + { + String objectKey = displayGroupKeyForAspect( ObjectsAspect ); + Object match; + int index = NSArray.NotFound; + int count = objectsDisplayGroup.displayedObjects().count(); + for ( int i = 0; i < count; i++ ) + { + match = objectsDisplayGroup.valueForObjectAtIndex( i, objectKey ); + if ( value.equals( match ) ) + { + index = i; + } + } + if ( index == NSArray.NotFound ) + { + if ( component.getValue() != null ) + { + component.setValue( null ); + } + } + else + { + String[] titles = component().getLabels(); + component.setValue( titles[ index ] ); + } + } + else + { + if ( value != null ) value = value.toString(); + component.setValue( (String) value ); + } + } + } + + /** + * Forces this association to cause the object to + * stop editing and validate the user's input. + * @return false if there were problems validating, + * or true to continue. + */ + public boolean endEditing () + { + return writeValueToDisplayGroup(); + } + + /** + * Writes the value currently in the component + * to the selected object in the display group + * bound to the value aspect. + * @return false if there were problems validating, + * or true to continue. + */ + protected boolean writeValueToDisplayGroup() + { + RadioButtonPanel component = component(); + EODisplayGroup displayGroup; + String key; + + // selected title aspect + displayGroup = displayGroupForAspect( ValueAspect ); + if ( displayGroup != null ) + { + key = displayGroupKeyForAspect( ValueAspect ); + Object value = null; + + // selected object aspect, if any + EODisplayGroup objectsGroup = + displayGroupForAspect( ObjectsAspect ); + if ( objectsGroup != null ) + { + String objectKey = displayGroupKeyForAspect( ObjectsAspect ); + String selectedValue = component.getValue(); + if ( selectedValue != null ) + { + String[] titles = component.getLabels(); + int index = -1; + for ( int i = 0; i < titles.length; i++ ) + { + if ( selectedValue.equals( titles[i] ) ) + { + index = i; + } + } + if ( index != -1 ) + { + value = objectsGroup + .valueForObjectAtIndex( index, objectKey ); + } + } + } + else // just use the selected item + { + value = component.getValue(); + } + + return displayGroup.setSelectedObjectValue( value, key ); + } + + return false; + } + + // interface ActionListener + + /** + * Updates object on action performed. + */ + public void actionPerformed( ActionEvent evt ) + { + writeValueToDisplayGroup(); + } + + // convenience + + private RadioButtonPanel component() + { + return (RadioButtonPanel) object(); + } +} + +/* + * $Log$ + * Revision 1.2 2006/02/18 23:19:05 cgruber + * Update imports and maven dependencies. + * + * Revision 1.1 2006/02/16 13:22:22 cgruber + * Check in all sources in eclipse-friendly maven-enabled packages. + * + * Revision 1.4 2004/01/28 18:34:57 mpowers + * Better handling for enabling. + * Now respecting enabledToSetSelectedObjectValueForKey from display group. + * + * Revision 1.3 2003/08/06 23:07:52 chochos + * general code cleanup (mostly, removing unused imports) + * + * Revision 1.2 2001/02/16 17:48:07 mpowers + * Populating titles or data not longer marks target object as changed. + * + * Revision 1.1.1.1 2000/12/21 15:48:52 mpowers + * Contributing wotonomy. + * + * Revision 1.3 2000/12/20 16:25:41 michael + * Added log to all files. + * + * + */ + -- cgit v1.2.3