ELTSWTWidgets.java

/*******************************************************************************
 * Copyright 2017 Capital One Services, LLC and Bitwise, Inc.
 * Licensed 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 hydrograph.ui.propertywindow.widgets.gridwidgets.basic;

import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.DragSource;
import org.eclipse.swt.dnd.DragSourceAdapter;
import org.eclipse.swt.dnd.DragSourceEvent;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.events.TraverseEvent;
import org.eclipse.swt.events.TraverseListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;

public class ELTSWTWidgets {

	public ELTSWTWidgets() {

	}

	public TableViewer createTableViewer(Composite composite, String[] prop,
			int[] bounds, int columnWidth,
			IStructuredContentProvider iStructuredContentProvider,
			ITableLabelProvider iTableLabelProvider) {
		final TableViewer tableViewer = new TableViewer(composite, SWT.BORDER
				| SWT.MULTI | SWT.FULL_SELECTION | SWT.VIRTUAL);

		Table table = tableViewer.getTable();
		table.setBounds(bounds[0], bounds[1], bounds[2], bounds[3]);
		tableViewer.setContentProvider(iStructuredContentProvider);
		tableViewer.setLabelProvider(iTableLabelProvider);
		tableViewer.setColumnProperties(prop);
		tableViewer.getTable().addTraverseListener(new TraverseListener() {

			@Override
			public void keyTraversed(TraverseEvent e) {
				if (e.keyCode == SWT.ARROW_UP) {
					e.doit = false;
				} else if (e.keyCode == SWT.ARROW_DOWN) {
					e.doit = false;
				} else if (e.keyCode == SWT.TRAVERSE_ARROW_NEXT) {
					e.doit = false;
				} else if (e.keyCode == SWT.TRAVERSE_ARROW_PREVIOUS) {
					e.doit = false;
				}

			}
		});

		table.setVisible(true);
		table.setLinesVisible(true);
		table.setHeaderVisible(true);
		/*
		 * createTableColumns(table,prop, columnWidth); CellEditor[] editors
		 * =createCellEditorList(table,1); tableViewer.setCellEditors(editors);
		 */

		return tableViewer;
	}

	public void createTableColumns(Table table, String[] fields, int width) {
		for (String field : fields) {
			TableColumn tableColumn = new TableColumn(table, SWT.LEFT);
			tableColumn.setText(field);
			tableColumn.setWidth(width);
			// tableColumn.pack();
		}
		table.setHeaderVisible(true);
		table.setLinesVisible(true);

	}

	public CellEditor[] createCellEditorList(Table table, int size) {
		CellEditor[] cellEditor = new CellEditor[size];
		for (int i = 0; i < size; i++)
			addTextEditor(table, cellEditor, i);

		return cellEditor;
	}

	protected void addTextEditor(Table table, CellEditor[] cellEditor,
			int position) {
		cellEditor[position] = new TextCellEditor(table, SWT.COLOR_GREEN);
	}

	public Label labelWidget(Composite parent, int style, int[] bounds,
			String value, Image image) {
		Label label = new Label(parent, style);
		label.setBounds(bounds[0], bounds[1], bounds[2], bounds[3]);
		label.setText(value);
		label.setImage(image);

		return label;
	}

	public Button buttonWidget(Composite parent, int style, int[] bounds,
			String value) {
		Button button = new Button(parent, style);
		button.setBounds(bounds[0], bounds[1], bounds[2], bounds[3]);
		button.setText(value);

		return button;
	}

	public Text textBoxWidget(Composite parent, int style, int[] bounds,
			String text, boolean value) {
		Text textWidget = new Text(parent, style);
		textWidget.setBounds(bounds[0], bounds[1], bounds[2], bounds[3]);
		textWidget.setText(text);
		textWidget.setEditable(value);

		return textWidget;
	}

	public Combo comboWidget(Composite parent, int style, int[] bounds,
			String[] items, int selectionIndex) {
		Combo comboBox = new Combo(parent, style);
		comboBox.setBounds(bounds[0], bounds[1], bounds[2], bounds[3]);
		comboBox.setItems(items);
		comboBox.select(selectionIndex);

		return comboBox;
	}

	public void applyDragFromTableViewer(Control sourceControl, int index) {
		Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
		final String portLabel = "in" + index + ".";
		int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK;
		final Table table = (Table) sourceControl;
		DragSource source = new DragSource(table, operations);
		source.setTransfer(types);
		final String[] columnData = new String[1];
		source.addDragListener(new DragSourceAdapter() {
			public void dragSetData(DragSourceEvent event) {
				// Set the data to be the first selected item's text
				event.data = addDelimeter(portLabel, table.getSelection());
			}
		});

	}

	private String addDelimeter(String portLabel, TableItem[] selectedTableItems) {
		StringBuffer buffer = new StringBuffer();
		for (TableItem tableItem : selectedTableItems) {
			buffer.append(portLabel + tableItem.getText() + "#");
		}
		return buffer.toString();
	}

}