/*******************************************************************************
 * Copyright (c) 2004 - 2006 University Of British Columbia 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:
 *     University Of British Columbia - initial API and implementation
 *******************************************************************************/
/*
 * Created on Feb 8, 2005
 */
package org.eclipse.mylar.internal.sandbox.viz;

import org.eclipse.mylar.internal.core.MylarContextManager;
import org.eclipse.mylar.provisional.core.IMylarContextListener;
import org.eclipse.mylar.provisional.core.MylarPlugin;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.part.ViewPart;

/**
 * @author Mik Kersten
 */
public class MylarControlPanel extends Composite {
	private Scale dosScale;

	// private TableViewer tableViewer;
	private Scale doiScale;

	public MylarControlPanel(ViewPart part, Composite parent, int style) {
		super(parent, style);
		final GridLayout gridLayout_3 = new GridLayout();
		gridLayout_3.verticalSpacing = 2;
		gridLayout_3.marginWidth = 0;
		gridLayout_3.marginHeight = 0;
		gridLayout_3.horizontalSpacing = 1;
		setLayout(gridLayout_3);

		final Label activeLabel = new Label(this, SWT.NONE);
		activeLabel.setText("Active tasks ");
		activeLabel
				.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING | GridData.VERTICAL_ALIGN_BEGINNING));

		// tableViewer = new TableViewer(this, SWT.BORDER);
		// final GridData gridData = new GridData();
		// gridData.widthHint = 141;
		// tableViewer.getTable().setLayoutData(new
		// GridData(GridData.FILL_BOTH));
		// tableViewer.setContentProvider(new ItemContentProvider());
		// tableViewer.setInput(part.getViewSite());
		// tableViewer.setLabelProvider(new TasklistLabelProvider());

		final Composite group = new Composite(this, SWT.NONE);
		final GridLayout gridLayout_2 = new GridLayout();
		gridLayout_2.verticalSpacing = 0;
		gridLayout_2.horizontalSpacing = 0;
		gridLayout_2.marginWidth = 0;
		gridLayout_2.marginHeight = 0;
		group.setLayout(gridLayout_2);
		final GridData gridData_1 = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL);
		gridData_1.heightHint = 45;
		group.setLayoutData(gridData_1);

		final Composite doiComposite = new Composite(group, SWT.NONE);
		final GridData gridData_2 = new GridData(GridData.FILL_BOTH);
		gridData_2.heightHint = 20;
		gridData_2.widthHint = 191;
		doiComposite.setLayoutData(gridData_2);
		final GridLayout gridLayout = new GridLayout();
		gridLayout.horizontalSpacing = 1;
		gridLayout.verticalSpacing = 1;
		gridLayout.marginWidth = 1;
		gridLayout.marginHeight = 1;
		gridLayout.numColumns = 2;
		doiComposite.setLayout(gridLayout);

		final Label doiLabel = new Label(doiComposite, SWT.NONE);
		final GridData gridData_4 = new GridData();
		gridData_4.widthHint = 105;
		doiLabel.setLayoutData(gridData_4);
		doiLabel.setText(" Degree of interest");
		doiScale = new Scale(doiComposite, SWT.NONE);
		final GridData gridData_3 = new GridData(GridData.FILL_HORIZONTAL);
		gridData_3.heightHint = 17;
		doiScale.setLayoutData(gridData_3);
		doiScale.setPageIncrement(1);
		doiScale.setSelection(6);
		doiScale.setMinimum(0);
		doiScale.setMaximum(12);
		doiScale.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				MylarContextManager.getScalingFactors().setInteresting(scaleDoiSelection(doiScale.getSelection()));
				MylarPlugin.getContextManager().notifyActivePresentationSettingsChange(
						IMylarContextListener.UpdateKind.SCALING);
			}

			public void widgetDefaultSelected(SelectionEvent e) {
				// don't care about default selection
			}
		});
		doiScale.addMouseListener(new MouseListener() {
			public void mouseDoubleClick(MouseEvent e) {
				// don't care about double click
			}

			public void mouseDown(MouseEvent e) {
				// don't care about mouse down
			}

			public void mouseUp(MouseEvent e) {
				MylarContextManager.getScalingFactors().setInteresting(scaleDoiSelection(doiScale.getSelection()));
				MylarPlugin.getContextManager().notifyPostPresentationSettingsChange(
						IMylarContextListener.UpdateKind.SCALING);
			}
		});

		final Composite dosComposite = new Composite(group, SWT.NONE);
		final GridData gridData_2_1 = new GridData(GridData.FILL_BOTH);
		gridData_2_1.heightHint = 20;
		gridData_2_1.widthHint = 191;
		dosComposite.setLayoutData(gridData_2_1);
		final GridLayout gridLayout_1 = new GridLayout();
		gridLayout_1.verticalSpacing = 1;
		gridLayout_1.horizontalSpacing = 1;
		gridLayout_1.marginWidth = 1;
		gridLayout_1.marginHeight = 1;
		gridLayout_1.numColumns = 2;
		dosComposite.setLayout(gridLayout_1);

		final Label dosLabel = new Label(dosComposite, SWT.NONE);
		final GridData gridData_5 = new GridData();
		gridData_5.widthHint = 105;
		dosLabel.setLayoutData(gridData_5);
		dosLabel.setBounds(0, 0, 120, 30);
		dosLabel.setText(" Degree of separation");

		dosScale = new Scale(dosComposite, SWT.NONE);
		final GridData gridData_3_1 = new GridData(GridData.FILL_HORIZONTAL);
		gridData_3_1.heightHint = 17;
		dosScale.setIncrement(1);
		dosScale.setLayoutData(gridData_3_1);
		dosScale.setMinimum(1);
		dosScale.setMaximum(5);
		dosScale.setSelection(2);
		dosScale.setPageIncrement(1);
		dosScale.setBounds(0, 0, 120, 30);
		dosScale.setToolTipText("landmarks | interesting | projects | dependent projects | workspace");
		dosScale.addMouseListener(new MouseListener() {
			public void mouseDoubleClick(MouseEvent e) {
				// don't care about double click
			}

			public void mouseDown(MouseEvent e) {
				// don't care about mouse down
			}

			public void mouseUp(MouseEvent e) {
				MylarContextManager.getScalingFactors().setDegreeOfSeparation(dosScale.getSelection());
				MylarPlugin.getContextManager().refreshRelatedElements();
			}

		});

		// initDragAndDrop(tableViewer);
		// tableViewer.refresh();
	}

	private float scaleDoiSelection(int selection) {
		int value = selection;
		int scaledValue = (-1) * (value - 6);
		if (scaledValue < 0)
			scaledValue = 0;
		return scaledValue;
	}

	// private static final class ItemContentProvider implements
	// IStructuredContentProvider {
	//
	// public Object[] getElements(Object inputElement) {
	// return
	// TaskListPlugin.getTaskListManager().getTaskList().getActiveTasks().toArray();
	// }
	//
	// public void dispose() {
	// }
	//
	// public void inputChanged(Viewer viewer, Object oldInput, Object newInput)
	// {
	// }
	// }

	// private void initDragAndDrop(final TableViewer tableViewer) {
	// TextTransfer textTransfer = TextTransfer.getInstance();
	// DropTarget target = new DropTarget(tableViewer.getTable(), DND.DROP_COPY
	// | DND.DROP_MOVE);
	// target.setTransfer(new Transfer[] { textTransfer });
	// target.addDropListener(new TaskListDropTargetListener(this, tableViewer,
	// textTransfer, true));
	//        
	// DragSource source = new DragSource(tableViewer.getTable(), DND.DROP_COPY
	// | DND.DROP_MOVE);
	// Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
	// source.setTransfer(types);
	// source.addDragListener(new DragSourceListener() {
	//
	// public void dragStart(DragSourceEvent event) {
	// if (((StructuredSelection)tableViewer.getSelection()).getFirstElement()
	// == null) {
	// event.doit = false;
	// }
	// }
	//
	// public void dragSetData(DragSourceEvent event) {
	// StructuredSelection selection =
	// (StructuredSelection)tableViewer.getSelection();
	// ITask task = (ITask)selection.getFirstElement();
	// if (task != null) {
	// event.data = "" + task.getId();
	// } else {
	// event.data = " ";
	// }
	// }
	//
	// public void dragFinished(DragSourceEvent event) {
	// StructuredSelection selection =
	// (StructuredSelection)tableViewer.getSelection();
	// if (selection.isEmpty()) {
	// return;
	// } else {
	// ITask task = (ITask) selection.getFirstElement();
	// tableViewer.remove(task);
	// tableViewer.refresh();
	// }
	// }
	//            
	// });
	// }

	// class ViewLabelProvider extends LabelProvider implements IColorProvider {
	// 
	// public String getText(Object obj) {
	// if (obj instanceof BugzillaTask) {
	// String desc =
	// TaskListPlugin.getDefault().getBugzillaProvider().getBugzillaDescription(
	// ((BugzillaTask)obj));
	// return desc;
	// } else if (obj instanceof Task) {
	// Task task = (Task)obj;
	// return task.toString();// + " [" + task.getId() + "]";
	// } else {
	// return obj.toString();
	// }
	// }
	//            
	// public Image getImage(Object obj) {
	// String imageKey = ISharedImages.IMG_OBJ_ELEMENT;
	// if (obj instanceof Category) {
	// return MylarImages.getImage(MylarImages.TASK_CATEGORY);
	// } else if (obj instanceof BugzillaTask) {
	// return MylarImages.getImage(MylarImages.TASK_BUGZILLA);
	// } else if (obj instanceof Task) {
	// return MylarImages.getImage(MylarImages.TASK);
	// } else {
	// return null;
	// }
	// }
	// public Color getForeground(Object element) {
	// return null;
	// }
	//        
	// public Color getBackground(Object element) {
	// if (element instanceof ITask) {
	// ITask task = (ITask)element;
	// if (task.isActive()) {
	// Highlighter highlighter =
	// MylarUiPlugin.getDefault().getHighlighterForTaskId(((Task)task).getId());
	// if (highlighter != null) {
	// return highlighter.getHighlightColor();
	// } else {
	// return null;
	// }
	// }
	// }
	// return null;
	// }
	// }

	@Override
	public void dispose() {
		super.dispose();
	}

	// protected void checkSubclass() {
	//    	
	// }

	// public TableViewer getTableViewer() {
	// return tableViewer;
	// }

}