examples/org.eclipse.jface.snippets/Eclipse JFace Snippets/org/eclipse/jface/snippets/viewers/Snippet055HideShowColumn.java - platform/eclipse.platform.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2006 Tom Schindl and others.
  * 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:
  *     Tom Schindl - initial API and implementation
  *******************************************************************************/

 package org.eclipse.jface.snippets.viewers;

 import java.util.ArrayList;

 import org.eclipse.jface.viewers.CellEditor;
 import org.eclipse.jface.viewers.ColumnLabelProvider;
 import org.eclipse.jface.viewers.ColumnViewerEditor;
 import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
 import org.eclipse.jface.viewers.EditingSupport;
 import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
 import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
 import org.eclipse.jface.viewers.ITreeContentProvider;
 import org.eclipse.jface.viewers.TextCellEditor;
 import org.eclipse.jface.viewers.TreePath;
 import org.eclipse.jface.viewers.TreeViewerFocusCellManager;
 import org.eclipse.jface.viewers.TreeViewerEditor;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.TreeViewerColumn;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Shell;

 /**
  * A simple TreeViewer to demonstrate usage
  *
  * @author Tom Schindl <tom.schindl@bestsolution.at>
  *
  */
 public class Snippet055HideShowColumn {
 	public Snippet055HideShowColumn(final Shell shell) {
 		final TreeViewer v = new TreeViewer(shell, SWT.BORDER
 				| SWT.FULL_SELECTION);
 		v.getTree().setLayoutData(new GridData(SWT.FILL,SWT.FILL,true,true,2,1));
 		v.getTree().setLinesVisible(true);
 		v.getTree().setHeaderVisible(true);

 		TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager(
 				v, new FocusCellOwnerDrawHighlighter(v));
 		ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(
 				v) {
 			protected boolean isEditorActivationEvent(
 					ColumnViewerEditorActivationEvent event) {
 				return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
 						|| event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
 						|| (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
 						|| event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
 			}
 		};

 		TreeViewerEditor.create(v, focusCellManager, actSupport,
 				ColumnViewerEditor.TABBING_HORIZONTAL
 						| ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
 						| ColumnViewerEditor.TABBING_VERTICAL
 						| ColumnViewerEditor.KEYBOARD_ACTIVATION);

 		final TextCellEditor textCellEditor = new TextCellEditor(v.getTree());

 		TreeViewerColumn column_1 = new TreeViewerColumn(v, SWT.NONE);
 		column_1.getColumn().setWidth(200);
 		column_1.getColumn().setMoveable(true);
 		column_1.getColumn().setText("Column 1");
 		column_1.setLabelProvider(new ColumnLabelProvider() {

 			public String getText(Object element) {
 				return "Column 1 => " + element.toString();
 			}

 		});
 		column_1.setEditingSupport(new EditingSupport(v) {
 			protected boolean canEdit(Object element) {
 				return true;
 			}

 			protected CellEditor getCellEditor(Object element) {
 				return textCellEditor;
 			}

 			protected Object getValue(Object element) {
 				return ((MyModel) element).counter + "";
 			}

 			protected void setValue(Object element, Object value) {
 				((MyModel) element).counter = Integer
 						.parseInt(value.toString());
 				v.update(element, null);
 			}
 		});

 		final TreeViewerColumn column_2 = new TreeViewerColumn(v, SWT.NONE);
 		column_2.getColumn().setWidth(200);
 		column_2.getColumn().setMoveable(true);
 		column_2.getColumn().setText("Column 2");
 		column_2.setLabelProvider(new ColumnLabelProvider() {

 			public String getText(Object element) {
 				return "Column 2 => " + element.toString();
 			}

 		});
 		column_2.setEditingSupport(new EditingSupport(v) {
 			protected boolean canEdit(Object element) {
 				return true;
 			}

 			protected CellEditor getCellEditor(Object element) {
 				return textCellEditor;
 			}

 			protected Object getValue(Object element) {
 				return ((MyModel) element).counter + "";
 			}

 			protected void setValue(Object element, Object value) {
 				((MyModel) element).counter = Integer
 						.parseInt(value.toString());
 				v.update(element, null);
 			}
 		});

 		TreeViewerColumn column_3 = new TreeViewerColumn(v, SWT.NONE);
 		column_3.getColumn().setWidth(200);
 		column_3.getColumn().setMoveable(true);
 		column_3.getColumn().setText("Column 3");
 		column_3.setLabelProvider(new ColumnLabelProvider() {

 			public String getText(Object element) {
 				return "Column 3 => " + element.toString();
 			}

 		});
 		column_3.setEditingSupport(new EditingSupport(v) {
 			protected boolean canEdit(Object element) {
 				return true;
 			}

 			protected CellEditor getCellEditor(Object element) {
 				return textCellEditor;
 			}

 			protected Object getValue(Object element) {
 				return ((MyModel) element).counter + "";
 			}

 			protected void setValue(Object element, Object value) {
 				((MyModel) element).counter = Integer
 						.parseInt(value.toString());
 				v.update(element, null);
 			}
 		});

 		v.setContentProvider(new MyContentProvider());

 		v.setInput(createModel());

 		Button b = new Button(shell, SWT.PUSH);
 		b.setText("Edit-Element");
 		b.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		b.addSelectionListener(new SelectionAdapter() {

 			public void widgetSelected(SelectionEvent e) {
 				MyModel root = (MyModel) v.getInput();
 				TreePath path = new TreePath(new Object[] { root,
 						root.child.get(1),
 						((MyModel) root.child.get(1)).child.get(0) });
 				v.editElement(path, 0);
 			}

 		});

 		b = new Button(shell, SWT.PUSH);
 		b.setText("Hide/Show 2nd Column");
 		b.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		b.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				column_2.getColumn().setWidth(0);
 			}
 		});
 	}

 	private MyModel createModel() {

 		MyModel root = new MyModel(0, null);
 		root.counter = 0;

 		MyModel tmp;
 		MyModel subItem;
 		for (int i = 1; i < 10; i++) {
 			tmp = new MyModel(i, root);
 			root.child.add(tmp);
 			for (int j = 1; j < i; j++) {
 				subItem = new MyModel(j, tmp);
 				subItem.child.add(new MyModel(j * 100, subItem));
 				tmp.child.add(subItem);
 			}
 		}

 		return root;
 	}

 	public static void main(String[] args) {
 		Display display = new Display();
 		Shell shell = new Shell(display);
 		shell.setLayout(new GridLayout(2,true));
 		new Snippet055HideShowColumn(shell);
 		shell.open();

 		while (!shell.isDisposed()) {
 			if (!display.readAndDispatch())
 				display.sleep();
 		}

 		display.dispose();
 	}

 	private class MyContentProvider implements ITreeContentProvider {

 		public Object[] getElements(Object inputElement) {
 			return ((MyModel) inputElement).child.toArray();
 		}

 		public void dispose() {
 		}

 		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 		}

 		public Object[] getChildren(Object parentElement) {
 			return getElements(parentElement);
 		}

 		public Object getParent(Object element) {
 			if (element == null) {
 				return null;
 			}
 			return ((MyModel) element).parent;
 		}

 		public boolean hasChildren(Object element) {
 			return ((MyModel) element).child.size() > 0;
 		}

 	}

 	public class MyModel {
 		public MyModel parent;

 		public ArrayList child = new ArrayList();

 		public int counter;

 		public MyModel(int counter, MyModel parent) {
 			this.parent = parent;
 			this.counter = counter;
 		}

 		public String toString() {
 			String rv = "Item ";
 			if (parent != null) {
 				rv = parent.toString() + ".";
 			}

 			rv += counter;

 			return rv;
 		}
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2006 Tom Schindl and others.
	* 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:
	* Tom Schindl - initial API and implementation
	*******************************************************************************/

	package org.eclipse.jface.snippets.viewers;

	import java.util.ArrayList;

	import org.eclipse.jface.viewers.CellEditor;
	import org.eclipse.jface.viewers.ColumnLabelProvider;
	import org.eclipse.jface.viewers.ColumnViewerEditor;
	import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
	import org.eclipse.jface.viewers.EditingSupport;
	import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
	import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
	import org.eclipse.jface.viewers.ITreeContentProvider;
	import org.eclipse.jface.viewers.TextCellEditor;
	import org.eclipse.jface.viewers.TreePath;
	import org.eclipse.jface.viewers.TreeViewerFocusCellManager;
	import org.eclipse.jface.viewers.TreeViewerEditor;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.jface.viewers.TreeViewerColumn;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Shell;

	/**
	* A simple TreeViewer to demonstrate usage
	*
	* @author Tom Schindl <tom.schindl@bestsolution.at>
	*
	*/
	public class Snippet055HideShowColumn {
	public Snippet055HideShowColumn(final Shell shell) {
	final TreeViewer v = new TreeViewer(shell, SWT.BORDER
	\| SWT.FULL_SELECTION);
	v.getTree().setLayoutData(new GridData(SWT.FILL,SWT.FILL,true,true,2,1));
	v.getTree().setLinesVisible(true);
	v.getTree().setHeaderVisible(true);

	TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager(
	v, new FocusCellOwnerDrawHighlighter(v));
	ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(
	v) {
	protected boolean isEditorActivationEvent(
	ColumnViewerEditorActivationEvent event) {
	return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
	\|\| event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
	\|\| (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
	\|\| event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
	}
	};

	TreeViewerEditor.create(v, focusCellManager, actSupport,
	ColumnViewerEditor.TABBING_HORIZONTAL
	\| ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
	\| ColumnViewerEditor.TABBING_VERTICAL
	\| ColumnViewerEditor.KEYBOARD_ACTIVATION);

	final TextCellEditor textCellEditor = new TextCellEditor(v.getTree());

	TreeViewerColumn column_1 = new TreeViewerColumn(v, SWT.NONE);
	column_1.getColumn().setWidth(200);
	column_1.getColumn().setMoveable(true);
	column_1.getColumn().setText("Column 1");
	column_1.setLabelProvider(new ColumnLabelProvider() {

	public String getText(Object element) {
	return "Column 1 => " + element.toString();
	}

	});
	column_1.setEditingSupport(new EditingSupport(v) {
	protected boolean canEdit(Object element) {
	return true;
	}

	protected CellEditor getCellEditor(Object element) {
	return textCellEditor;
	}

	protected Object getValue(Object element) {
	return ((MyModel) element).counter + "";
	}

	protected void setValue(Object element, Object value) {
	((MyModel) element).counter = Integer
	.parseInt(value.toString());
	v.update(element, null);
	}
	});

	final TreeViewerColumn column_2 = new TreeViewerColumn(v, SWT.NONE);
	column_2.getColumn().setWidth(200);
	column_2.getColumn().setMoveable(true);
	column_2.getColumn().setText("Column 2");
	column_2.setLabelProvider(new ColumnLabelProvider() {

	public String getText(Object element) {
	return "Column 2 => " + element.toString();
	}

	});
	column_2.setEditingSupport(new EditingSupport(v) {
	protected boolean canEdit(Object element) {
	return true;
	}

	protected CellEditor getCellEditor(Object element) {
	return textCellEditor;
	}

	protected Object getValue(Object element) {
	return ((MyModel) element).counter + "";
	}

	protected void setValue(Object element, Object value) {
	((MyModel) element).counter = Integer
	.parseInt(value.toString());
	v.update(element, null);
	}
	});

	TreeViewerColumn column_3 = new TreeViewerColumn(v, SWT.NONE);
	column_3.getColumn().setWidth(200);
	column_3.getColumn().setMoveable(true);
	column_3.getColumn().setText("Column 3");
	column_3.setLabelProvider(new ColumnLabelProvider() {

	public String getText(Object element) {
	return "Column 3 => " + element.toString();
	}

	});
	column_3.setEditingSupport(new EditingSupport(v) {
	protected boolean canEdit(Object element) {
	return true;
	}

	protected CellEditor getCellEditor(Object element) {
	return textCellEditor;
	}

	protected Object getValue(Object element) {
	return ((MyModel) element).counter + "";
	}

	protected void setValue(Object element, Object value) {
	((MyModel) element).counter = Integer
	.parseInt(value.toString());
	v.update(element, null);
	}
	});

	v.setContentProvider(new MyContentProvider());

	v.setInput(createModel());

	Button b = new Button(shell, SWT.PUSH);
	b.setText("Edit-Element");
	b.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	b.addSelectionListener(new SelectionAdapter() {

	public void widgetSelected(SelectionEvent e) {
	MyModel root = (MyModel) v.getInput();
	TreePath path = new TreePath(new Object[] { root,
	root.child.get(1),
	((MyModel) root.child.get(1)).child.get(0) });
	v.editElement(path, 0);
	}

	});

	b = new Button(shell, SWT.PUSH);
	b.setText("Hide/Show 2nd Column");
	b.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	b.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	column_2.getColumn().setWidth(0);
	}
	});
	}

	private MyModel createModel() {

	MyModel root = new MyModel(0, null);
	root.counter = 0;

	MyModel tmp;
	MyModel subItem;
	for (int i = 1; i < 10; i++) {
	tmp = new MyModel(i, root);
	root.child.add(tmp);
	for (int j = 1; j < i; j++) {
	subItem = new MyModel(j, tmp);
	subItem.child.add(new MyModel(j * 100, subItem));
	tmp.child.add(subItem);
	}
	}

	return root;
	}

	public static void main(String[] args) {
	Display display = new Display();
	Shell shell = new Shell(display);
	shell.setLayout(new GridLayout(2,true));
	new Snippet055HideShowColumn(shell);
	shell.open();

	while (!shell.isDisposed()) {
	if (!display.readAndDispatch())
	display.sleep();
	}

	display.dispose();
	}

	private class MyContentProvider implements ITreeContentProvider {

	public Object[] getElements(Object inputElement) {
	return ((MyModel) inputElement).child.toArray();
	}

	public void dispose() {
	}

	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	}

	public Object[] getChildren(Object parentElement) {
	return getElements(parentElement);
	}

	public Object getParent(Object element) {
	if (element == null) {
	return null;
	}
	return ((MyModel) element).parent;
	}

	public boolean hasChildren(Object element) {
	return ((MyModel) element).child.size() > 0;
	}

	}

	public class MyModel {
	public MyModel parent;

	public ArrayList child = new ArrayList();

	public int counter;

	public MyModel(int counter, MyModel parent) {
	this.parent = parent;
	this.counter = counter;
	}

	public String toString() {
	String rv = "Item ";
	if (parent != null) {
	rv = parent.toString() + ".";
	}

	rv += counter;

	return rv;
	}
	}

	}