Attachment 166308 Details for Bug 310799 – ComboTab.java for override

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ComboTab.java for override

ComboTab.java (text/x-java), 16.76 KB, created by Wen Ai

on 2010-04-28 07:44:41 EDT

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Description:

Filename:

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Creator: Wen Ai

Created: 2010-04-28 07:44:41 EDT

Size: 16.76 KB

patch

obsolete

>/*******************************************************************************
> * Copyright (c) 2002, 2010 Innoopract Informationssysteme GmbH.
> * 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:
> *     Innoopract Informationssysteme GmbH - initial API and implementation
> *     EclipseSource - ongoing development
> ******************************************************************************/
>
>package org.eclipse.rap.demo.controls;
>
>import org.eclipse.jface.dialogs.MessageDialog;
>import org.eclipse.jface.viewers.*;
>import org.eclipse.swt.SWT;
>import org.eclipse.swt.custom.CCombo;
>import org.eclipse.swt.custom.CTabFolder;
>import org.eclipse.swt.events.*;
>import org.eclipse.swt.graphics.Point;
>import org.eclipse.swt.layout.*;
>import org.eclipse.swt.widgets.*;
>
>public class ComboTab extends ExampleTab {
>
>  private static final String PROP_SELECTION_LISTENER = "selectionListener";
>
>  private static final String[] ITEMS = new String[] {
>    "Eiffel",
>    "Java",
>    "Python",
>    "Ruby",
>    "Simula",
>    "Smalltalk",
>    "Python"
>  };
>
>  private Combo firstCombo;
>  private Combo verifyCombo;
>  private Combo viewerCombo;
>  private CCombo cCombo;
>  private Button createEmptyComboButton;
>  private Button preselectFirstItemButton;
>  private boolean empty;
>  private boolean preselectItem;
>
>  public ComboTab( final CTabFolder topFolder ) {
>    super( topFolder, "Combo" );
>  }
>
>  protected void createStyleControls( final Composite parent ) {
>    createStyleButton( "BORDER", SWT.BORDER );
>    createStyleButton( "READ_ONLY", SWT.READ_ONLY );
>    createStyleButton( "FLAT", SWT.FLAT );
>    createVisibilityButton();
>    createEnablementButton();
>    createFgColorButton();
>    createBgColorButton();
>    createFontChooser();
>    createCursorCombo();
>    createPropertyCheckbox( "Add Selection Listener", PROP_SELECTION_LISTENER );
>    Group group = new Group( parent, SWT.NONE );
>    group.setText( "Manipulate First Combo" );
>    group.setLayout( new GridLayout() );
>    createAddButton( group );
>    createSetVisibleItemCountButton( group );
>    createRemoveAllButton( group );
>    createDeselectAllButton( group );
>    createSelectFirstItemButton( group );
>    createEmptyComboButton = new Button( group, SWT.CHECK );
>    createEmptyComboButton.setText( "Create Empty Combo" );
>    createEmptyComboButton.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent e ) {
>        if( createEmptyComboButton.getSelection() ) {
>          empty = true;
>        } else {
>          empty = false;
>        }
>        createNew();
>      }
>    } );
>    preselectFirstItemButton = new Button( group, SWT.CHECK );
>    preselectFirstItemButton.setText( "Preselect First Item" );
>    preselectFirstItemButton.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent e ) {
>        if( preselectFirstItemButton.getSelection() ) {
>          preselectItem = true;
>        } else {
>          preselectItem = false;
>        }
>        createNew();
>      }
>    } );
>    Label selectionTitle = new Label( group, SWT.NONE );
>    selectionTitle.setText( "Text selection:" );
>    createSetSelectionControls( group );
>    createGetSelectionControls( group );
>    createSetTextLimitButton( group, firstCombo );
>    Group grpManioulateCCombo = new Group( parent, SWT.NONE );
>    grpManioulateCCombo.setText( "Manipulate CCombo" );
>    grpManioulateCCombo.setLayout( new GridLayout() );
>    createSetTextLimitButton( grpManioulateCCombo, cCombo );
>    createChangeSizeButton( grpManioulateCCombo );
>    createShowListButton( grpManioulateCCombo );
>  }
>
>  protected void createExampleControls( final Composite parent ) {
>    parent.setLayout( new GridLayout( 3, false ) );
>    int style = getStyle();
>    // Standard Combo
>    Label lblFilledCombo = new Label( parent, SWT.NONE );
>    lblFilledCombo.setText( "Filled Combo" );
>    firstCombo = new Combo( parent, style );
>    if( !empty ) {
>      firstCombo.setItems( ITEMS );
>    }
>    if( !empty && preselectItem ) {
>      firstCombo.select( 0 );
>    }
>    if( hasCreateProperty( PROP_SELECTION_LISTENER ) ) {
>      firstCombo.addSelectionListener( new SelectionAdapter() {
>        public void widgetSelected( final SelectionEvent evt ) {
>          show( evt );
>        }
>        public void widgetDefaultSelected( final SelectionEvent evt ) {
>          show( evt );
>        }
>        private void show( final SelectionEvent evt ) {
>          Shell shell = firstCombo.getShell();
>          String msg = "Event: " + evt + "\n"
>                       + "Text: " + firstCombo.getText() + "\n"
>                       + "Selection: " + firstCombo.getSelectionIndex();
>          MessageDialog.openInformation( shell, "Selection Event", msg );
>        }
>      } );
>    }
>    Button btnShowSelection = new Button( parent, SWT.PUSH );
>    btnShowSelection.setText( "Show Selection" );
>    btnShowSelection.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        showSelection( firstCombo.getItems(), firstCombo.getSelectionIndex() );
>      }
>    } );
>
>    // -- verify listener --
>    Label lblVerifyCombo = new Label( parent, SWT.NONE );
>    lblVerifyCombo.setText( "Combo with VerifyListener (only 0-9 allowed)" );
>    verifyCombo = new Combo( parent, style );
>    verifyCombo.setLayoutData( colSpan2() );
>    verifyCombo.add( "0" );
>    verifyCombo.add( "1" );
>    verifyCombo.add( "2" );
>    verifyCombo.add( "3" );
>    verifyCombo.addVerifyListener( new VerifyListener() {
>      public void verifyText( final VerifyEvent event ) {
>        StringBuffer allowedText = new StringBuffer();
>        for( int i = 0; i < event.text.length(); i++ ) {
>          char ch = event.text.charAt( i );
>          if( ch >= '0' && ch <= '9' ) {
>            allowedText.append( ch );
>          }
>        }
>        event.text = allowedText.toString();
>      }
>    } );
>    // Viewer Combo
>    Label lblViewerCombo = new Label( parent, SWT.NONE );
>    String msg = "ComboViewer with context menu";
>    lblViewerCombo.setText( msg );
>    viewerCombo = new Combo( parent, style );
>    viewerCombo.setLayoutData( colSpan2() );
>    ComboViewer viewer = new ComboViewer( viewerCombo );
>    viewer.setContentProvider( new IStructuredContentProvider() {
>      public void dispose() {
>      }
>      public void inputChanged( final Viewer viewer, final Object oldIn, final Object newIn ) {
>      }
>      public Object[] getElements( final Object inputElement ) {
>        return ( Object[] )inputElement;
>      }
>    } );
>    viewer.setLabelProvider( new LabelProvider() );
>    viewer.setInput( ITEMS );
>    viewer.addSelectionChangedListener( new ISelectionChangedListener() {
>      public void selectionChanged( final SelectionChangedEvent event ) {
>        String message = "Selected item: " + event.getSelection().toString();
>        Shell shell = parent.getShell();
>        MessageDialog.openInformation( shell, "Info", message );
>      }
>    } );
>    Menu menu = new Menu( viewerCombo );
>    MenuItem menuItem = new MenuItem( menu, SWT.NONE );
>    menuItem.setText( "MenuItem on ComboViewer" );
>    viewerCombo.setMenu( menu );
>    // Separator
>    int separatorStyle = SWT.SEPARATOR | SWT.HORIZONTAL | SWT.SHADOW_OUT;
>    Label separator = new Label( parent, separatorStyle );
>    separator.setLayoutData( createGridDataWithSpan() );
>    // CCombo
>    Label lblCCombo = new Label( parent, SWT.NONE );
>    lblCCombo.setText( "CCombo" );
>    cCombo = new CCombo( parent, style );
>    cCombo.setItems( ITEMS );
>    if( hasCreateProperty( PROP_SELECTION_LISTENER ) ) {
>      cCombo.addSelectionListener( new SelectionAdapter() {
>        public void widgetSelected( final SelectionEvent evt ) {
>          show( evt );
>        }
>        public void widgetDefaultSelected( final SelectionEvent evt ) {
>          show( evt );
>        }
>        private void show( final SelectionEvent evt ) {
>          Shell shell = cCombo.getShell();
>          String msg = "Event: " + evt + "\n"
>                       + "Text: " + cCombo.getText() + "\n"
>                       + "Selection: " + cCombo.getSelectionIndex();
>          MessageDialog.openInformation( shell, "Selection Event", msg );
>        }
>      } );
>    }
>    Button btnShowSelectionCCombo = new Button( parent, SWT.PUSH );
>    btnShowSelectionCCombo.setText( "Show Selection" );
>    btnShowSelectionCCombo.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        showSelection( cCombo.getItems(), cCombo.getSelectionIndex() );
>      }
>    } );
>    // Register controls
>    registerControl( firstCombo );
>    registerControl( verifyCombo );
>    registerControl( viewerCombo );
>    registerControl( cCombo );
>  }
>
>  private void createAddButton( final Composite parent ) {
>    Composite composite = new Composite( parent, SWT.NONE );
>    composite.setLayout( new GridLayout( 3, false ) );
>    Label lblAddItem = new Label( composite, SWT.NONE );
>    lblAddItem.setText( "Add Item" );
>    final Text txtAddItem = new Text( composite, SWT.BORDER );
>    txtAddItem.setText( "New Item" );
>    Button btnAddItem = new Button( composite, SWT.PUSH );
>    btnAddItem.setText( "Add" );
>    btnAddItem.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        firstCombo.add( txtAddItem.getText() );
>      }
>    } );
>  }
>
>  private void createRemoveAllButton( final Composite parent ) {
>    Button button = new Button( parent , SWT.PUSH );
>    button.setText( "Remove All Items" );
>    button.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        firstCombo.removeAll();
>      }
>    } );
>  }
>
>  private void createDeselectAllButton( final Composite parent ) {
>    Button button = new Button( parent , SWT.PUSH );
>    button.setText( "Deselect All Items" );
>    button.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        firstCombo.deselectAll();
>      }
>    } );
>  }
>
>  private void createSelectFirstItemButton( final Composite parent ) {
>    Button button = new Button( parent , SWT.PUSH );
>    button.setText( "Select First Item" );
>    button.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        if( firstCombo.getItemCount() > 0 ) {
>          firstCombo.select( 0 );
>        }
>      }
>    } );
>  }
>
>  private void createSetVisibleItemCountButton( final Composite parent ) {
>    Composite composite = new Composite( parent, SWT.NONE );
>    composite.setLayout( new GridLayout( 3, false ) );
>    final Text text = new Text( composite, SWT.BORDER | SWT.SINGLE );
>    text.setText( "3" );
>    text.setLayoutData( new GridData( 20, SWT.DEFAULT ) );
>    Button button = new Button( composite, SWT.PUSH );
>    button.setText( "Set Visible Item Count" );
>    button.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        try {
>          int vic = Integer.parseInt( text.getText() );
>          firstCombo.setVisibleItemCount( vic );
>        } catch( NumberFormatException e ) {
>        }
>      }
>    } );
>  }
>
>  private void createSetSelectionControls( final Composite parent ) {
>    Composite composite = new Composite( parent, SWT.NONE );
>    composite.setLayout( new GridLayout( 5, false ) );
>    Label lblSelectionFrom = new Label( composite, SWT.NONE );
>    lblSelectionFrom.setText( "From" );
>    final Text txtSelectionFrom = new Text( composite, SWT.BORDER | SWT.SINGLE );
>    txtSelectionFrom.setTextLimit( 2 );
>    txtSelectionFrom.setText( "0" );
>    txtSelectionFrom.setLayoutData( new GridData( 20, SWT.DEFAULT ) );
>    Label lblSelectionTo = new Label( composite, SWT.NONE );
>    lblSelectionTo.setText( "to" );
>    final Text txtSelectionTo = new Text( composite, SWT.BORDER | SWT.SINGLE );
>    txtSelectionTo.setTextLimit( 2 );
>    txtSelectionTo.setText( "0" );
>    txtSelectionTo.setLayoutData( new GridData( 20, SWT.DEFAULT ) );
>    Button btnSetSelection = new Button( composite, SWT.PUSH );
>    btnSetSelection.setText( "set" );
>    btnSetSelection.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        int from = parseInt( txtSelectionFrom.getText() );
>        int to = parseInt( txtSelectionTo.getText() );
>        if( from >= 0 && to >= 0 ) {
>          firstCombo.setSelection( new Point( from, to ) );
>        } else {
>          String msg
>            = "Invalid Selection";
>          MessageDialog.openError( getShell(), "Error", msg );
>        }
>      }
>    } );
>  }
>
>  private void createGetSelectionControls( final Composite parent ) {
>    Composite composite = new Composite( parent, SWT.NONE );
>    composite.setLayout( new GridLayout( 2, false ) );
>    final Text outputSelection =  new Text( composite, SWT.BORDER );
>    outputSelection.setEditable( false );
>    Button btnGetSelection = new Button( composite, SWT.PUSH );
>    btnGetSelection.setText( "get" );
>    btnGetSelection.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        Point selection = firstCombo.getSelection();
>        outputSelection.setText( selection.x + ", " + selection.y );
>      }
>    } );
>  }
>
>  private int parseInt( final String text ) {
>    int result;
>    try {
>      result = Integer.parseInt( text );
>    } catch( NumberFormatException e ) {
>      result = -1;
>    }
>    return result;
>  }
>
>  private static GridData colSpan2() {
>    GridData result = new GridData( SWT.BEGINNING, SWT.CENTER, false, false );
>    result.horizontalSpan = 2;
>    return result;
>  }
>
>  private void createSetTextLimitButton( final Composite parent,
>                                         final Control combo )
>  {
>    Composite composite = new Composite( parent, SWT.NONE );
>    composite.setLayout( new GridLayout( 2, false ) );
>    final Text text = new Text( composite, SWT.BORDER | SWT.SINGLE );
>    text.setText( "5" );
>    text.setLayoutData( new GridData( 20, SWT.DEFAULT ) );
>    Button button = new Button( composite, SWT.PUSH );
>    button.setText( "Set Text Limit" );
>    button.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        try {
>          int textLimit = Integer.parseInt( text.getText() );
>          if( combo instanceof Combo ) {
>            ( ( Combo )combo ).setTextLimit( textLimit );
>          } else if( combo instanceof CCombo ) {
>            ( ( CCombo )combo ).setTextLimit( textLimit );
>          }
>        } catch( NumberFormatException e ) {
>        }
>      }
>    } );
>  }
>
>  private void createChangeSizeButton( final Composite parent ) {
>    Button button = new Button( parent, SWT.PUSH );
>    button.setText( "Change Size" );
>    button.addSelectionListener( new SelectionAdapter() {
>      private boolean customSize;
>      public void widgetSelected( final SelectionEvent event ) {
>        if ( customSize ) {
>          GridData gridData = new GridData( SWT.DEFAULT, SWT.DEFAULT );
>          cCombo.setLayoutData( gridData );
>          customSize = false;
>        } else {
>          GridData gridData = new GridData( 100, 100 );
>          cCombo.setLayoutData( gridData );
>          customSize = true;
>        }
>        Composite parent = ( ( Control )controls.get( 0 ) ).getParent();
>        parent.layout( true, true );
>      }
>    } );
>  }
>
>  private void createShowListButton( final Composite parent ) {
>    Button button = new Button( parent, SWT.PUSH );
>    button.setText( "Show List" );
>    button.addSelectionListener( new SelectionAdapter() {
>      public void widgetSelected( final SelectionEvent event ) {
>        boolean listVisible = cCombo.getListVisible();
>        cCombo.setListVisible( !listVisible );
>      }
>    } );
>  }
>
>  private void showSelection( final String[] items, final int selectionIndex ) {
>    String selection = "(nothing)";
>    if( selectionIndex != -1 ) {
>      selection = items[ selectionIndex ];
>    }
>//    String msg = "Your Selection: " + selection;
>    String msg = "Your Selection: " + selectionIndex;
>    MessageDialog.openInformation( getShell(), "Information", msg );
>  }
>
>  private GridData createGridDataWithSpan() {
>    GridData gridData = new GridData( GridData.FILL_HORIZONTAL );
>    gridData.horizontalSpan = 3;
>    return gridData;
>  }
>}

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Attachments on bug 310799: 166308