debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/actions/CastToArrayActionDelegate.java - cdt/org.eclipse.cdt - Git at Google

 /*
  *(c) Copyright QNX Software Systems Ltd. 2002.
  * All Rights Reserved.
  *
  */

 package org.eclipse.cdt.debug.internal.ui.actions;

 import org.eclipse.cdt.debug.core.model.ICastToArray;
 import org.eclipse.cdt.debug.internal.ui.CDebugImages;
 import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
 import org.eclipse.cdt.utils.ui.controls.ControlFactory;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.debug.core.DebugException;
 import org.eclipse.debug.ui.IDebugView;
 import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.window.Window;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.BusyIndicator;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 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.Control;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.IObjectActionDelegate;
 import org.eclipse.ui.IWorkbenchPart;
 import org.eclipse.ui.IWorkbenchWindow;
 import org.eclipse.ui.actions.ActionDelegate;

 /**
  * Enter type comment.
  *
  * @since Mar 10, 2003
  */
 public class CastToArrayActionDelegate extends ActionDelegate implements IObjectActionDelegate
 {
 	protected class CastToArrayDialog extends Dialog
 	{
 		private String fType = "";
 		private int fFirstIndex = 0;
 		private int fLength = 0;

 		private Button fOkButton;
 		private Label fErrorMessageLabel;

 		private Text fFirstIndexText;
 		private Text fLengthText;

 		public CastToArrayDialog( Shell parentShell, String initialType, int initialStart, int initialLength )
 		{
 			super( parentShell );
 			fType = ( initialType == null ) ? "" : initialType;
 			fFirstIndex = initialStart;
 			fLength = initialLength;
 		}

 		protected String getType()
 		{
 			return fType;
 		}

 		protected int getFirstIndex()
 		{
 			return fFirstIndex;
 		}

 		protected int getLength()
 		{
 			return fLength;
 		}

 		/* (non-Javadoc)
 		 * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 		 */
 		protected void configureShell( Shell newShell )
 		{
 			super.configureShell( newShell );
 			newShell.setText( "Display As Array" );
 			newShell.setImage( CDebugImages.get( CDebugImages.IMG_LCL_DISPLAY_AS_ARRAY ) );
 		}

 		/* (non-Javadoc)
 		 * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 		 */
 		protected void createButtonsForButtonBar( Composite parent )
 		{
 			// create OK and Cancel buttons by default
 			fOkButton = createButton( parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true );
 			createButton( parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false );

 			//do this here because setting the text will set enablement on the ok button
 /*
 			fTypeText.setFocus();
 			if ( fType != null )
 			{
 				fTypeText.setText( fType );
 				fTypeText.selectAll();
 				fFirstIndexText.setText( String.valueOf( fFirstIndex ) );
 				fLengthText.setText( String.valueOf( fLength ) );
 			}
 */
 			fFirstIndexText.setText( String.valueOf( fFirstIndex ) );
 			fLengthText.setText( String.valueOf( fLength ) );
 		}

 		protected Label getErrorMessageLabel()
 		{
 			return fErrorMessageLabel;
 		}

 		/* (non-Javadoc)
 		 * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 		 */
 		protected Control createDialogArea( Composite parent )
 		{
 			Composite composite = (Composite)super.createDialogArea( parent );

 			createDialogFields( composite );

 			fErrorMessageLabel = new Label( composite, SWT.NONE );
 			fErrorMessageLabel.setLayoutData( new GridData( GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL ) );
 			fErrorMessageLabel.setFont(parent.getFont());
 			return composite;
 		}

 		private void createDialogFields( Composite parent )
 		{
 			Composite composite = ControlFactory.createComposite( parent, 4 );
 			((GridData)composite.getLayoutData()).widthHint = convertHorizontalDLUsToPixels( IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH );
 			((GridLayout)composite.getLayout()).makeColumnsEqualWidth = true;

 			Label label = ControlFactory.createLabel( composite, "Start index:" );
 			((GridData)label.getLayoutData()).horizontalSpan = 3;
 			fFirstIndexText = ControlFactory.createTextField( composite );
 			fFirstIndexText.addModifyListener(
 								new ModifyListener()
 									{
 										public void modifyText( ModifyEvent e )
 										{
 											validateInput();
 										}
 									} );

 			label = ControlFactory.createLabel( composite, "Length:" );
 			((GridData)label.getLayoutData()).horizontalSpan = 3;
 			fLengthText = ControlFactory.createTextField( composite );
 			fLengthText.addModifyListener(
 								new ModifyListener()
 									{
 										public void modifyText( ModifyEvent e )
 										{
 											validateInput();
 										}
 									} );
 		}

 		protected void validateInput()
 		{
 			boolean enabled = true;
 			String message = "";
 			String firstIndex = fFirstIndexText.getText().trim();
 			if ( firstIndex.length() == 0 )
 			{
 				message = "The 'First index' field must not be empty.";
 				enabled = false;
 			}
 			else
 			{
 				try
 				{
 					Integer.parseInt( firstIndex );
 				}
 				catch( NumberFormatException e )
 				{
 					message = "Invalid first index.";
 					enabled = false;
 				}
 				if ( enabled )
 				{
 					String lengthText = fLengthText.getText().trim();
 					if ( lengthText.length() == 0 )
 					{
 						message = "The 'Last index' field must not be empty.";
 						enabled = false;
 					}
 					else
 					{
 						int length = -1;
 						try
 						{
 							length = Integer.parseInt( lengthText );
 						}
 						catch( NumberFormatException e )
 						{
 							message = "Invalid last index.";
 							enabled = false;
 						}
 						if ( enabled && length < 1 )
 						{
 							message = "The length must be greater than 0.";
 							enabled = false;
 						}
 					}
 				}
 			}
 			fOkButton.setEnabled( enabled );
 			getErrorMessageLabel().setText( message );
 		}

 		/* (non-Javadoc)
 		 * @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int)
 		 */
 		protected void buttonPressed( int buttonId )
 		{
 			if ( buttonId == IDialogConstants.OK_ID )
 			{
 				String firstIndex = fFirstIndexText.getText().trim();
 				String lengthText = fLengthText.getText().trim();
 				try
 				{
 					fFirstIndex = Integer.parseInt( firstIndex );
 					fLength = Integer.parseInt( lengthText );
 				}
 				catch( NumberFormatException e )
 				{
 					fFirstIndex = 0;
 					fLength = 0;
 				}
 			}
 			else
 			{
 				fType = null;
 			}
 			super.buttonPressed( buttonId );
 		}
 	}

 	private ICastToArray fCastToArray = null;
 	private IStatus fStatus = null;
 	private IWorkbenchPart fTargetPart = null;

 	public CastToArrayActionDelegate()
 	{
 		super();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart)
 	 */
 	public void setActivePart( IAction action, IWorkbenchPart targetPart )
 	{
 		fTargetPart = targetPart;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
 	 */
 	public void run( IAction action )
 	{
 		if ( getCastToArray() == null )
 			return;
 		BusyIndicator.showWhile( Display.getCurrent(),
 								 new Runnable()
 									 {
 										 public void run()
 										 {
 											 try
 											 {
 												 doAction( getCastToArray() );
 												 setStatus( null );
 											 }
 											 catch( DebugException e )
 											 {
 												setStatus( e.getStatus() );
 											 }
 										 }
 									 } );
 		if ( getStatus() != null && !getStatus().isOK() )
 		{
 			IWorkbenchWindow window= CDebugUIPlugin.getActiveWorkbenchWindow();
 			if ( window != null )
 			{
 				CDebugUIPlugin.errorDialog( "Unable to display this variable as an array.", getStatus() );
 			}
 			else
 			{
 				CDebugUIPlugin.log( getStatus() );
 			}
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
 	 */
 	public void selectionChanged( IAction action, ISelection selection )
 	{
 		if ( selection instanceof IStructuredSelection )
 		{
 			Object element = ((IStructuredSelection)selection).getFirstElement();
 			if ( element instanceof ICastToArray )
 			{
 				boolean enabled = ((ICastToArray)element).supportsCastToArray();
 				action.setEnabled( enabled );
 				if ( enabled )
 				{
 					setCastToArray( (ICastToArray)element );
 					return;
 				}
 			}
 		}
 		action.setEnabled( false );
 		setCastToArray( null );
 	}

 	protected ICastToArray getCastToArray()
 	{
 		return fCastToArray;
 	}

 	protected void setCastToArray( ICastToArray castToArray )
 	{
 		fCastToArray = castToArray;
 	}

 	public IStatus getStatus()
 	{
 		return fStatus;
 	}

 	public void setStatus( IStatus status )
 	{
 		fStatus = status;
 	}

 	protected void doAction( ICastToArray castToArray ) throws DebugException
 	{
 		String currentType = castToArray.getCurrentType().trim();
 		CastToArrayDialog dialog = new CastToArrayDialog( CDebugUIPlugin.getActiveWorkbenchShell(), currentType, 0, 1 );
 		if ( dialog.open() == Window.OK )
 		{
 			int firstIndex = dialog.getFirstIndex();
 			int lastIndex = dialog.getLength();
 			castToArray.castToArray( firstIndex, lastIndex );
 			if ( getSelectionProvider() != null )
 				getSelectionProvider().setSelection( new StructuredSelection( castToArray ) );
 		}
 	}

 	private ISelectionProvider getSelectionProvider()
 	{
 		return ( fTargetPart instanceof IDebugView ) ? ((IDebugView)fTargetPart).getViewer() : null;
 	}
 }
	/*
	*(c) Copyright QNX Software Systems Ltd. 2002.
	* All Rights Reserved.
	*
	*/

	package org.eclipse.cdt.debug.internal.ui.actions;

	import org.eclipse.cdt.debug.core.model.ICastToArray;
	import org.eclipse.cdt.debug.internal.ui.CDebugImages;
	import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
	import org.eclipse.cdt.utils.ui.controls.ControlFactory;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.debug.core.DebugException;
	import org.eclipse.debug.ui.IDebugView;
	import org.eclipse.jface.action.IAction;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionProvider;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.window.Window;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.BusyIndicator;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	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.Control;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.IObjectActionDelegate;
	import org.eclipse.ui.IWorkbenchPart;
	import org.eclipse.ui.IWorkbenchWindow;
	import org.eclipse.ui.actions.ActionDelegate;

	/**
	* Enter type comment.
	*
	* @since Mar 10, 2003
	*/
	public class CastToArrayActionDelegate extends ActionDelegate implements IObjectActionDelegate
	{
	protected class CastToArrayDialog extends Dialog
	{
	private String fType = "";
	private int fFirstIndex = 0;
	private int fLength = 0;

	private Button fOkButton;
	private Label fErrorMessageLabel;

	private Text fFirstIndexText;
	private Text fLengthText;

	public CastToArrayDialog( Shell parentShell, String initialType, int initialStart, int initialLength )
	{
	super( parentShell );
	fType = ( initialType == null ) ? "" : initialType;
	fFirstIndex = initialStart;
	fLength = initialLength;
	}

	protected String getType()
	{
	return fType;
	}

	protected int getFirstIndex()
	{
	return fFirstIndex;
	}

	protected int getLength()
	{
	return fLength;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
	*/
	protected void configureShell( Shell newShell )
	{
	super.configureShell( newShell );
	newShell.setText( "Display As Array" );
	newShell.setImage( CDebugImages.get( CDebugImages.IMG_LCL_DISPLAY_AS_ARRAY ) );
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
	*/
	protected void createButtonsForButtonBar( Composite parent )
	{
	// create OK and Cancel buttons by default
	fOkButton = createButton( parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true );
	createButton( parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false );

	//do this here because setting the text will set enablement on the ok button
	/*
	fTypeText.setFocus();
	if ( fType != null )
	{
	fTypeText.setText( fType );
	fTypeText.selectAll();
	fFirstIndexText.setText( String.valueOf( fFirstIndex ) );
	fLengthText.setText( String.valueOf( fLength ) );
	}
	*/
	fFirstIndexText.setText( String.valueOf( fFirstIndex ) );
	fLengthText.setText( String.valueOf( fLength ) );
	}

	protected Label getErrorMessageLabel()
	{
	return fErrorMessageLabel;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
	*/
	protected Control createDialogArea( Composite parent )
	{
	Composite composite = (Composite)super.createDialogArea( parent );

	createDialogFields( composite );

	fErrorMessageLabel = new Label( composite, SWT.NONE );
	fErrorMessageLabel.setLayoutData( new GridData( GridData.GRAB_HORIZONTAL \| GridData.HORIZONTAL_ALIGN_FILL ) );
	fErrorMessageLabel.setFont(parent.getFont());
	return composite;
	}

	private void createDialogFields( Composite parent )
	{
	Composite composite = ControlFactory.createComposite( parent, 4 );
	((GridData)composite.getLayoutData()).widthHint = convertHorizontalDLUsToPixels( IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH );
	((GridLayout)composite.getLayout()).makeColumnsEqualWidth = true;

	Label label = ControlFactory.createLabel( composite, "Start index:" );
	((GridData)label.getLayoutData()).horizontalSpan = 3;
	fFirstIndexText = ControlFactory.createTextField( composite );
	fFirstIndexText.addModifyListener(
	new ModifyListener()
	{
	public void modifyText( ModifyEvent e )
	{
	validateInput();
	}
	} );

	label = ControlFactory.createLabel( composite, "Length:" );
	((GridData)label.getLayoutData()).horizontalSpan = 3;
	fLengthText = ControlFactory.createTextField( composite );
	fLengthText.addModifyListener(
	new ModifyListener()
	{
	public void modifyText( ModifyEvent e )
	{
	validateInput();
	}
	} );
	}

	protected void validateInput()
	{
	boolean enabled = true;
	String message = "";
	String firstIndex = fFirstIndexText.getText().trim();
	if ( firstIndex.length() == 0 )
	{
	message = "The 'First index' field must not be empty.";
	enabled = false;
	}
	else
	{
	try
	{
	Integer.parseInt( firstIndex );
	}
	catch( NumberFormatException e )
	{
	message = "Invalid first index.";
	enabled = false;
	}
	if ( enabled )
	{
	String lengthText = fLengthText.getText().trim();
	if ( lengthText.length() == 0 )
	{
	message = "The 'Last index' field must not be empty.";
	enabled = false;
	}
	else
	{
	int length = -1;
	try
	{
	length = Integer.parseInt( lengthText );
	}
	catch( NumberFormatException e )
	{
	message = "Invalid last index.";
	enabled = false;
	}
	if ( enabled && length < 1 )
	{
	message = "The length must be greater than 0.";
	enabled = false;
	}
	}
	}
	}
	fOkButton.setEnabled( enabled );
	getErrorMessageLabel().setText( message );
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int)
	*/
	protected void buttonPressed( int buttonId )
	{
	if ( buttonId == IDialogConstants.OK_ID )
	{
	String firstIndex = fFirstIndexText.getText().trim();
	String lengthText = fLengthText.getText().trim();
	try
	{
	fFirstIndex = Integer.parseInt( firstIndex );
	fLength = Integer.parseInt( lengthText );
	}
	catch( NumberFormatException e )
	{
	fFirstIndex = 0;
	fLength = 0;
	}
	}
	else
	{
	fType = null;
	}
	super.buttonPressed( buttonId );
	}
	}

	private ICastToArray fCastToArray = null;
	private IStatus fStatus = null;
	private IWorkbenchPart fTargetPart = null;

	public CastToArrayActionDelegate()
	{
	super();
	}

	/* (non-Javadoc)
	* @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart)
	*/
	public void setActivePart( IAction action, IWorkbenchPart targetPart )
	{
	fTargetPart = targetPart;
	}

	/* (non-Javadoc)
	* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
	*/
	public void run( IAction action )
	{
	if ( getCastToArray() == null )
	return;
	BusyIndicator.showWhile( Display.getCurrent(),
	new Runnable()
	{
	public void run()
	{
	try
	{
	doAction( getCastToArray() );
	setStatus( null );
	}
	catch( DebugException e )
	{
	setStatus( e.getStatus() );
	}
	}
	} );
	if ( getStatus() != null && !getStatus().isOK() )
	{
	IWorkbenchWindow window= CDebugUIPlugin.getActiveWorkbenchWindow();
	if ( window != null )
	{
	CDebugUIPlugin.errorDialog( "Unable to display this variable as an array.", getStatus() );
	}
	else
	{
	CDebugUIPlugin.log( getStatus() );
	}
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
	*/
	public void selectionChanged( IAction action, ISelection selection )
	{
	if ( selection instanceof IStructuredSelection )
	{
	Object element = ((IStructuredSelection)selection).getFirstElement();
	if ( element instanceof ICastToArray )
	{
	boolean enabled = ((ICastToArray)element).supportsCastToArray();
	action.setEnabled( enabled );
	if ( enabled )
	{
	setCastToArray( (ICastToArray)element );
	return;
	}
	}
	}
	action.setEnabled( false );
	setCastToArray( null );
	}

	protected ICastToArray getCastToArray()
	{
	return fCastToArray;
	}

	protected void setCastToArray( ICastToArray castToArray )
	{
	fCastToArray = castToArray;
	}

	public IStatus getStatus()
	{
	return fStatus;
	}

	public void setStatus( IStatus status )
	{
	fStatus = status;
	}

	protected void doAction( ICastToArray castToArray ) throws DebugException
	{
	String currentType = castToArray.getCurrentType().trim();
	CastToArrayDialog dialog = new CastToArrayDialog( CDebugUIPlugin.getActiveWorkbenchShell(), currentType, 0, 1 );
	if ( dialog.open() == Window.OK )
	{
	int firstIndex = dialog.getFirstIndex();
	int lastIndex = dialog.getLength();
	castToArray.castToArray( firstIndex, lastIndex );
	if ( getSelectionProvider() != null )
	getSelectionProvider().setSelection( new StructuredSelection( castToArray ) );
	}
	}

	private ISelectionProvider getSelectionProvider()
	{
	return ( fTargetPart instanceof IDebugView ) ? ((IDebugView)fTargetPart).getViewer() : null;
	}
	}