/*
* 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 org.apache.directory.studio.aciitemeditor.widgets;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import org.apache.directory.shared.ldap.aci.GrantAndDenial;
import org.apache.directory.studio.aciitemeditor.Activator;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.CheckboxCellEditor;
import org.eclipse.jface.viewers.ICellModifier;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
/**
* This composite contains GUI elements to edit ACI item grants and denials.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class ACIItemGrantsAndDenialsComposite extends Composite
{
/** The description label */
private Label label = null;
/** The tree control for the tree viewer */
private Tree tree = null;
/** The tree viewer containing all grants and denials */
private TreeViewer treeViewer = null;
/** The composite containing the buttons */
private Composite buttonComposite = null;
/** The grant all button */
private Button grantAllButton = null;
/** The deny all button */
private Button denyAllButton = null;
/** The deselect all button */
private Button deselectAllButton = null;
/** The undo button */
private Button undoButton = null;
/** The redo button */
private Button redoButton = null;
/** Colum 1 */
private static String PERMISSION = Messages.getString( "ACIItemGrantsAndDenialsComposite.column1.header" ); //$NON-NLS-1$
/** Colum2 */
private static String STATE = Messages.getString( "ACIItemGrantsAndDenialsComposite.column2.header" ); //$NON-NLS-1$
/** The colums */
private static String[] COLUMNS = new String[]
{ PERMISSION, STATE };
/** The undo/redo stack size */
private static final int MAX_STACK_SIZE = 25;
/** Used as input for the tree viewer */
private GrantAndDenialCategory[] grantAndDenialCategories = new GrantAndDenialCategory[]
{
new GrantAndDenialCategory(
Messages.getString( "ACIItemGrantsAndDenialsComposite.category.read" ), true, new GrantAndDenialWrapper[] //$NON-NLS-1$
{
new GrantAndDenialWrapper( GrantAndDenial.GRANT_BROWSE, GrantAndDenial.DENY_BROWSE ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_READ, GrantAndDenial.DENY_READ ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_COMPARE, GrantAndDenial.DENY_COMPARE ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_FILTER_MATCH, GrantAndDenial.DENY_FILTER_MATCH ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_RETURN_DN, GrantAndDenial.DENY_RETURN_DN ) } ),
new GrantAndDenialCategory(
Messages.getString( "ACIItemGrantsAndDenialsComposite.category.modify" ), true, new GrantAndDenialWrapper[] //$NON-NLS-1$
{ new GrantAndDenialWrapper( GrantAndDenial.GRANT_ADD, GrantAndDenial.DENY_ADD ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_MODIFY, GrantAndDenial.DENY_MODIFY ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_REMOVE, GrantAndDenial.DENY_REMOVE ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_RENAME, GrantAndDenial.DENY_RENAME ) } ),
new GrantAndDenialCategory(
Messages.getString( "ACIItemGrantsAndDenialsComposite.category.advanced" ), false, new GrantAndDenialWrapper[] //$NON-NLS-1$
{
new GrantAndDenialWrapper( GrantAndDenial.GRANT_EXPORT, GrantAndDenial.DENY_EXPORT ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_IMPORT, GrantAndDenial.DENY_IMPORT ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_INVOKE, GrantAndDenial.DENY_INVOKE ),
new GrantAndDenialWrapper( GrantAndDenial.GRANT_DISCLOSE_ON_ERROR,
GrantAndDenial.DENY_DISCLOSE_ON_ERROR ) } ) };
/**
* A GrantAndDenialCategory is used to categorize grants and denials in a tree.
*/
private class GrantAndDenialCategory
{
/** The category name, displayed in tree */
private String name;
/** The initial expanded state */
private boolean expanded;
/** The grants and denials wrappers display under this category */
private GrantAndDenialWrapper[] grantAndDenialWrappers;
/**
* Creates a new instance of GrantAndDenialCategory.
*
* @param name the category name, displayed in tree
* @param expanded true if category should be initially expanded
* @param grantAndDenialWrappers the grants and denials wrappers display under this category
*/
private GrantAndDenialCategory( String name, boolean expanded, GrantAndDenialWrapper[] grantAndDenialWrappers )
{
this.name = name;
this.expanded = expanded;
this.grantAndDenialWrappers = grantAndDenialWrappers;
}
}
/**
* A GrantAndDenialWrapper is used to display grants and denials in tree and to
* track the current state (not specified, grant or deny). Additional it provides
* undo/redo functionality.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
private class GrantAndDenialWrapper
{
/** The grant */
private GrantAndDenial grant;
/** The denial */
private GrantAndDenial denial;
/** The current state: null=not specified, grant or denial */
private GrantAndDenial activeGrantAndDenial;
/** List containing previous states of activeGrandAndDenial */
private List<GrantAndDenial> undoStack;
/** List containing "future" states of activeGrandAndDenial */
private List<GrantAndDenial> redoStack;
/**
* Creates a new instance of GrantAndDenialWrapper.
*
* @param grant
* @param denial
*/
private GrantAndDenialWrapper( GrantAndDenial grant, GrantAndDenial denial )
{
this.grant = grant;
this.denial = denial;
this.activeGrantAndDenial = null;
undoStack = new LinkedList<GrantAndDenial>();
redoStack = new LinkedList<GrantAndDenial>();
}
}
/**
* Creates a new instance of ACIItemGrantsAndDenialsComposite.
*
* @param parent
* @param style
*/
public ACIItemGrantsAndDenialsComposite( Composite parent, int style )
{
super( parent, style );
GridLayout layout = new GridLayout();
layout.makeColumnsEqualWidth = false;
layout.numColumns = 2;
setLayout( layout );
GridData layoutData = new GridData();
layoutData.grabExcessHorizontalSpace = true;
layoutData.grabExcessVerticalSpace = true;
layoutData.horizontalAlignment = GridData.FILL;
layoutData.verticalAlignment = GridData.FILL;
setLayoutData( layoutData );
GridData labelGridData = new GridData();
labelGridData.horizontalSpan = 2;
labelGridData.verticalAlignment = GridData.CENTER;
labelGridData.grabExcessHorizontalSpace = true;
labelGridData.horizontalAlignment = GridData.FILL;
label = new Label( this, SWT.NONE );
label.setText( Messages.getString( "ACIItemGrantsAndDenialsComposite.description" ) ); //$NON-NLS-1$
label.setLayoutData( labelGridData );
createTree();
createButtonComposite();
}
/**
* This method initializes tree
*
*/
private void createTree()
{
GridData tableGridData = new GridData( GridData.FILL_BOTH );
tableGridData.grabExcessHorizontalSpace = true;
tableGridData.grabExcessVerticalSpace = true;
tableGridData.verticalAlignment = GridData.FILL;
tableGridData.horizontalAlignment = GridData.FILL;
//tableGridData.heightHint = 100;
tree = new Tree( this, SWT.SINGLE | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION
| SWT.HIDE_SELECTION );
tree.setHeaderVisible( true );
tree.setLayoutData( tableGridData );
tree.setLinesVisible( true );
TreeColumn c1 = new TreeColumn( tree, SWT.LEFT, 0 );
c1.setText( COLUMNS[0] );
c1.setWidth( 160 );
TreeColumn c2 = new TreeColumn( tree, SWT.LEFT, 1 );
c2.setText( COLUMNS[1] );
c2.setWidth( 80 );
// TreeColumn c3 = new TreeColumn( tree, SWT.LEFT, 2 );
// c3.setText( " " ); //$NON-NLS-1$
// c3.setWidth( 0 );
treeViewer = new TreeViewer( tree );
treeViewer.setUseHashlookup( true );
treeViewer.setColumnProperties( COLUMNS );
ICellModifier cellModifier = new GrantsAndDenialsCellModifier();
treeViewer.setCellModifier( cellModifier );
CellEditor[] cellEditors = new CellEditor[]
{ null, new CheckboxCellEditor( tree ), null };
treeViewer.setCellEditors( cellEditors );
treeViewer.setContentProvider( new GrantsAndDenialsContentProvider() );
treeViewer.setLabelProvider( new GrantsAndDenialsLabelProvider() );
treeViewer.setInput( grantAndDenialCategories );
// set expanded state
List<GrantAndDenialCategory> expandedList = new ArrayList<GrantAndDenialCategory>();
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
if ( grantAndDenialCategory.expanded )
{
expandedList.add( grantAndDenialCategory );
}
}
treeViewer.setExpandedElements( expandedList.toArray() );
}
/**
* This method initializes buttonComposite
*
*/
private void createButtonComposite()
{
GridData deselectAllButtonGridData = new GridData();
deselectAllButtonGridData.horizontalAlignment = GridData.FILL;
deselectAllButtonGridData.grabExcessHorizontalSpace = false;
deselectAllButtonGridData.verticalAlignment = GridData.BEGINNING;
deselectAllButtonGridData.widthHint = Activator.getButtonWidth( this );
GridData denyAllButtonGridData = new GridData();
denyAllButtonGridData.horizontalAlignment = GridData.FILL;
denyAllButtonGridData.grabExcessHorizontalSpace = false;
denyAllButtonGridData.verticalAlignment = GridData.BEGINNING;
denyAllButtonGridData.widthHint = Activator.getButtonWidth( this );
GridData grantAllButtonGridData = new GridData();
grantAllButtonGridData.horizontalAlignment = GridData.FILL;
grantAllButtonGridData.grabExcessHorizontalSpace = false;
grantAllButtonGridData.verticalAlignment = GridData.BEGINNING;
grantAllButtonGridData.widthHint = Activator.getButtonWidth( this );
GridData undoButtonGridData = new GridData();
undoButtonGridData.horizontalAlignment = GridData.FILL;
undoButtonGridData.grabExcessHorizontalSpace = false;
undoButtonGridData.verticalAlignment = GridData.BEGINNING;
undoButtonGridData.widthHint = Activator.getButtonWidth( this );
GridData redoButtonGridData = new GridData();
redoButtonGridData.horizontalAlignment = GridData.FILL;
redoButtonGridData.grabExcessHorizontalSpace = false;
redoButtonGridData.verticalAlignment = GridData.BEGINNING;
redoButtonGridData.widthHint = Activator.getButtonWidth( this );
GridLayout gridLayout = new GridLayout();
gridLayout.marginWidth = 0;
gridLayout.marginHeight = 0;
GridData gridData = new GridData();
gridData.horizontalAlignment = GridData.CENTER;
gridData.grabExcessHorizontalSpace = false;
gridData.grabExcessVerticalSpace = false;
gridData.verticalAlignment = GridData.FILL;
buttonComposite = new Composite( this, SWT.NONE );
buttonComposite.setLayoutData( gridData );
buttonComposite.setLayout( gridLayout );
grantAllButton = new Button( buttonComposite, SWT.NONE );
grantAllButton.setText( Messages.getString( "ACIItemGrantsAndDenialsComposite.grantAll.button" ) ); //$NON-NLS-1$
grantAllButton.setLayoutData( grantAllButtonGridData );
grantAllButton.addSelectionListener( new SelectionAdapter()
{
public void widgetSelected( SelectionEvent e )
{
backup();
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
for ( GrantAndDenialWrapper grantAndDenialWrapper : grantAndDenialCategory.grantAndDenialWrappers )
{
grantAndDenialWrapper.activeGrantAndDenial = grantAndDenialWrapper.grant;
}
}
treeViewer.refresh();
}
} );
denyAllButton = new Button( buttonComposite, SWT.NONE );
denyAllButton.setText( Messages.getString( "ACIItemGrantsAndDenialsComposite.denyAll.button" ) ); //$NON-NLS-1$
denyAllButton.setLayoutData( denyAllButtonGridData );
denyAllButton.addSelectionListener( new SelectionAdapter()
{
public void widgetSelected( SelectionEvent e )
{
backup();
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
for ( GrantAndDenialWrapper grantAndDenialWrapper : grantAndDenialCategory.grantAndDenialWrappers )
{
grantAndDenialWrapper.activeGrantAndDenial = grantAndDenialWrapper.denial;
}
}
treeViewer.refresh();
}
} );
deselectAllButton = new Button( buttonComposite, SWT.NONE );
deselectAllButton.setText( Messages.getString( "ACIItemGrantsAndDenialsComposite.deselectAll.button" ) ); //$NON-NLS-1$
deselectAllButton.setLayoutData( deselectAllButtonGridData );
deselectAllButton.addSelectionListener( new SelectionAdapter()
{
public void widgetSelected( SelectionEvent e )
{
backup();
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
for ( GrantAndDenialWrapper grantAndDenialWrapper : grantAndDenialCategory.grantAndDenialWrappers )
{
grantAndDenialWrapper.activeGrantAndDenial = null;
}
}
treeViewer.refresh();
}
} );
undoButton = new Button( buttonComposite, SWT.NONE );
undoButton.setText( Messages.getString( "ACIItemGrantsAndDenialsComposite.undo.button" ) ); //$NON-NLS-1$
undoButton.setLayoutData( undoButtonGridData );
undoButton.addSelectionListener( new SelectionAdapter()
{
public void widgetSelected( SelectionEvent e )
{
undo();
treeViewer.refresh();
}
} );
undoButton.setEnabled( false );
redoButton = new Button( buttonComposite, SWT.NONE );
redoButton.setText( Messages.getString( "ACIItemGrantsAndDenialsComposite.redo.button" ) ); //$NON-NLS-1$
redoButton.setLayoutData( redoButtonGridData );
redoButton.addSelectionListener( new SelectionAdapter()
{
public void widgetSelected( SelectionEvent e )
{
redo();
treeViewer.refresh();
}
} );
redoButton.setEnabled( false );
}
/**
* The ICellModifier user for this tree viewer.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
private class GrantsAndDenialsCellModifier implements ICellModifier
{
/**
* Only GrantAndDenialWrappers and the STATE colum is modifiable.
*
* @param element the element
* @param property the property
*
* @return true, if can modify
*/
public boolean canModify( Object element, String property )
{
if ( element instanceof GrantAndDenialWrapper )
{
return property.equals( STATE );
}
return false;
}
/**
* The used CheckboxCellEditor accepts only Booleans.
*
* @param element the element
* @param property the property
*
* @return the value
*/
public Object getValue( Object element, String property )
{
if ( element instanceof GrantAndDenialWrapper )
{
if ( property.equals( STATE ) )
{
return new Boolean( true );
}
}
return null;
}
/**
* Performs the tree-state transtion.
*
* @param element the element
* @param value the value
* @param property the property
*/
public void modify( Object element, String property, Object value )
{
if ( element != null && element instanceof Item )
{
element = ( ( Item ) element ).getData();
}
if ( element instanceof GrantAndDenialWrapper )
{
GrantAndDenialWrapper grantAndDenialWrapper = ( GrantAndDenialWrapper ) element;
if ( property.equals( STATE ) )
{
backup();
if ( grantAndDenialWrapper.activeGrantAndDenial == null )
{
grantAndDenialWrapper.activeGrantAndDenial = grantAndDenialWrapper.grant;
}
else if ( grantAndDenialWrapper.activeGrantAndDenial == grantAndDenialWrapper.grant )
{
grantAndDenialWrapper.activeGrantAndDenial = grantAndDenialWrapper.denial;
}
else if ( grantAndDenialWrapper.activeGrantAndDenial == grantAndDenialWrapper.denial )
{
grantAndDenialWrapper.activeGrantAndDenial = null;
}
}
}
treeViewer.refresh();
}
}
/**
* The content provider used for this tree viewer.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
private class GrantsAndDenialsContentProvider extends ArrayContentProvider implements ITreeContentProvider
{
/**
* Only GrantAndDenialCategories have children.
*
* @param parentElement the parent element
*
* @return the children
*/
public Object[] getChildren( Object parentElement )
{
if ( parentElement instanceof GrantAndDenialCategory )
{
GrantAndDenialCategory cat = ( GrantAndDenialCategory ) parentElement;
return cat.grantAndDenialWrappers;
}
return null;
}
/**
* Not used.
*
* @param element the element
*
* @return the parent
*/
public Object getParent( Object element )
{
return null;
}
/**
* Only GrantAndDenialCategories have children.
*
* @param element the element
*
* @return true, if has children
*/
public boolean hasChildren( Object element )
{
return ( element instanceof GrantAndDenialCategory );
}
}
/**
* The label provider used for this tree viewer.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
private class GrantsAndDenialsLabelProvider extends LabelProvider implements ITableLabelProvider
{
/**
* The STATE is displayed as image.
*
* @param element the element
* @param columnIndex the column index
*
* @return the column image
*/
public Image getColumnImage( Object element, int columnIndex )
{
if ( element instanceof GrantAndDenialWrapper )
{
GrantAndDenialWrapper grantAndDenialWrapper = ( GrantAndDenialWrapper ) element;
switch ( columnIndex )
{
case 0:
return null;
case 1:
if ( grantAndDenialWrapper.activeGrantAndDenial == null )
{
return Activator.getDefault().getImage(
Messages.getString( "ACIItemGrantsAndDenialsComposite.unspecified.icon" ) ); //$NON-NLS-1$
}
else if ( grantAndDenialWrapper.activeGrantAndDenial == grantAndDenialWrapper.grant )
{
return Activator.getDefault().getImage(
Messages.getString( "ACIItemGrantsAndDenialsComposite.grant.icon" ) ); //$NON-NLS-1$
}
else if ( grantAndDenialWrapper.activeGrantAndDenial == grantAndDenialWrapper.denial )
{
return Activator.getDefault().getImage(
Messages.getString( "ACIItemGrantsAndDenialsComposite.deny.icon" ) ); //$NON-NLS-1$
}
case 2:
return null;
}
}
return null;
}
/**
* Returns GrantAndDenialCategory name or the MicroOperation name.
*
* @param element the element
* @param columnIndex the column index
*
* @return the column text
*/
public String getColumnText( Object element, int columnIndex )
{
if ( element instanceof GrantAndDenialCategory )
{
if ( columnIndex == 0 )
{
GrantAndDenialCategory cat = ( GrantAndDenialCategory ) element;
return cat.name;
}
}
else if ( element instanceof GrantAndDenialWrapper )
{
if ( columnIndex == 0 )
{
GrantAndDenialWrapper wrapper = ( GrantAndDenialWrapper ) element;
return wrapper.grant.getMicroOperation().getName();
}
}
return ""; //$NON-NLS-1$
}
}
/**
* Sets the grants and denials.
*
* @param grantsAndDenials
*/
public void setGrantsAndDenials( Collection<GrantAndDenial> grantsAndDenials )
{
for ( GrantAndDenial grantAndDenial : grantsAndDenials )
{
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
for ( GrantAndDenialWrapper grantAndDenialWrapper : grantAndDenialCategory.grantAndDenialWrappers )
{
if ( grantAndDenialWrapper.grant == grantAndDenial )
{
grantAndDenialWrapper.activeGrantAndDenial = grantAndDenialWrapper.grant;
}
else if ( grantAndDenialWrapper.denial == grantAndDenial )
{
grantAndDenialWrapper.activeGrantAndDenial = grantAndDenialWrapper.denial;
}
}
}
}
treeViewer.refresh();
}
/**
* Returns the grants and denials as selected by the user.
*
* @return the grants and denials
* @throws ParseException
*/
public Collection<GrantAndDenial> getGrantsAndDenials() throws ParseException
{
Collection<GrantAndDenial> grantsAndDenials = new ArrayList<GrantAndDenial>();
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
for ( GrantAndDenialWrapper grantAndDenialWrapper : grantAndDenialCategory.grantAndDenialWrappers )
{
if ( grantAndDenialWrapper.activeGrantAndDenial != null )
{
grantsAndDenials.add( grantAndDenialWrapper.activeGrantAndDenial );
}
}
}
return grantsAndDenials;
}
/**
* Undos the last modification.
*/
private void undo()
{
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
for ( GrantAndDenialWrapper grantAndDenialWrapper : grantAndDenialCategory.grantAndDenialWrappers )
{
if ( grantAndDenialWrapper.undoStack.size() > 0 )
{
grantAndDenialWrapper.redoStack.add( 0, grantAndDenialWrapper.activeGrantAndDenial );
grantAndDenialWrapper.activeGrantAndDenial = grantAndDenialWrapper.undoStack.remove( 0 );
}
undoButton.setEnabled( !grantAndDenialWrapper.undoStack.isEmpty() );
redoButton.setEnabled( !grantAndDenialWrapper.redoStack.isEmpty() );
}
}
}
/**
* Redos the last modification
*/
private void redo()
{
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
for ( GrantAndDenialWrapper grantAndDenialWrapper : grantAndDenialCategory.grantAndDenialWrappers )
{
if ( grantAndDenialWrapper.redoStack.size() > 0 )
{
grantAndDenialWrapper.undoStack.add( 0, grantAndDenialWrapper.activeGrantAndDenial );
grantAndDenialWrapper.activeGrantAndDenial = grantAndDenialWrapper.redoStack.remove( 0 );
}
undoButton.setEnabled( !grantAndDenialWrapper.undoStack.isEmpty() );
redoButton.setEnabled( !grantAndDenialWrapper.redoStack.isEmpty() );
}
}
}
/**
* Saves the current state to the undo stack.
*/
private void backup()
{
for ( GrantAndDenialCategory grantAndDenialCategory : grantAndDenialCategories )
{
for ( GrantAndDenialWrapper grantAndDenialWrapper : grantAndDenialCategory.grantAndDenialWrappers )
{
if ( grantAndDenialWrapper.undoStack.size() == MAX_STACK_SIZE )
{
grantAndDenialWrapper.undoStack.remove( grantAndDenialWrapper.undoStack.size() - 1 );
}
grantAndDenialWrapper.undoStack.add( 0, grantAndDenialWrapper.activeGrantAndDenial );
grantAndDenialWrapper.redoStack.clear();
undoButton.setEnabled( !grantAndDenialWrapper.undoStack.isEmpty() );
redoButton.setEnabled( !grantAndDenialWrapper.redoStack.isEmpty() );
}
}
}
}