1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 package com.symbian.smt.gui.preferences;

    17 

    18 import org.eclipse.core.runtime.preferences.DefaultScope;

    19 import org.eclipse.core.runtime.preferences.IEclipsePreferences;

    20 import org.eclipse.core.runtime.preferences.IScopeContext;

    21 import org.eclipse.core.runtime.preferences.InstanceScope;

    22 import org.eclipse.jface.preference.PreferencePage;

    23 import org.eclipse.jface.resource.ImageDescriptor;

    24 import org.eclipse.swt.SWT;

    25 import org.eclipse.swt.layout.FillLayout;

    26 import org.eclipse.swt.widgets.Composite;

    27 import org.eclipse.swt.widgets.Control;

    28 import org.eclipse.ui.IWorkbench;

    29 import org.eclipse.ui.IWorkbenchPreferencePage;

    30 

    31 import com.symbian.smt.gui.Activator;

    32 import com.symbian.smt.gui.PersistentDataStore;

    33 import com.symbian.smt.gui.smtwidgets.ModelControlWidget;

    34 import com.symbian.smt.gui.smtwidgets.ValidModelDefinedListener;

    35 import com.symbian.smt.gui.smtwidgets.ValidModelEvent;

    36 import com.symbian.smt.gui.smtwidgets.ValidModelEvent.Type;

    37 

    38 public class ModelControlPreferences extends PreferencePage implements

    39 		IWorkbenchPreferencePage, ValidModelDefinedListener {

    40 

    41 	private ModelControlWidget modelControlWidget;

    42 	private PersistentDataStore instanceStore;

    43 	private PersistentDataStore defaultStore;

    44 

    45 	public ModelControlPreferences() {

    46 	}

    47 

    48 	public ModelControlPreferences(String title) {

    49 		super(title);

    50 	}

    51 

    52 	public ModelControlPreferences(String title, ImageDescriptor image) {

    53 		super(title, image);

    54 	}

    55 

    56 	@Override

    57 	protected Control createContents(Composite parent) {

    58 		Composite composite = new Composite(parent, SWT.NONE);

    59 		composite.setLayout(new FillLayout(SWT.VERTICAL));

    60 

    61 		modelControlWidget = new ModelControlWidget(composite, SWT.NONE);

    62 

    63 		IScopeContext defaultScope = new DefaultScope();

    64 		IEclipsePreferences defaultNode = defaultScope

    65 				.getNode(Activator.PLUGIN_ID);

    66 		defaultStore = new PersistentDataStore(defaultNode);

    67 

    68 		IScopeContext instanceScope = new InstanceScope();

    69 		IEclipsePreferences instanceNode = instanceScope

    70 				.getNode(Activator.PLUGIN_ID);

    71 		instanceStore = new PersistentDataStore(instanceNode, defaultNode);

    72 

    73 		modelControlWidget.initialisePrintedDpi(defaultStore);

    74 		modelControlWidget.addModelListener(this);

    75 		populate(instanceStore);

    76 		composite.pack();

    77 		parent.pack();

    78 

    79 		return composite;

    80 	}

    81 

    82 	@Override

    83 	public void dispose() {

    84 		if (modelControlWidget != null) {

    85 			modelControlWidget.removeModelListener(this);

    86 		}

    87 		

    88 		super.dispose();

    89 	}

    90 

    91 	public void init(IWorkbench workbench) {

    92 		setPreferenceStore(Activator.getDefault().getPreferenceStore());

    93 		setDescription("System Model Diagram model control.");

    94 	}

    95 

    96 	public void performDefaults() {

    97 		restoreDefaults();

    98 	}

    99 

   100 	public boolean performOk() {

   101 		storeValues();

   102 		return super.performOk();

   103 	}

   104 

   105 	private void populate(PersistentDataStore dataStore) {

   106 		// printedDpi field has already been initialised via the call to

   107 		// modelControlWidget.initialisePrintedDpi()

   108 		modelControlWidget.setHighlightCoreOS(dataStore.getHighlightCoreOS());

   109 		modelControlWidget.setLevelOfDetail(dataStore.getLevelOfDetail());

   110 		modelControlWidget.setSuppressMouseOverEffect(dataStore

   111 				.getSuppressMouseOverEffect());

   112 		modelControlWidget.setFixItemSize(dataStore.getFixItemSize());

   113 	}

   114 

   115 	private void restoreDefaults() {

   116 		modelControlWidget.setLevelOfDetail(defaultStore.getLevelOfDetail());

   117 		modelControlWidget.setPrintedDpis(defaultStore.getPrintedDpis());

   118 		modelControlWidget.setSelectedPrintedDpi(defaultStore

   119 				.getSelectedPrintedDpi());

   120 		modelControlWidget

   121 				.setHighlightCoreOS(defaultStore.getHighlightCoreOS());

   122 		modelControlWidget.setSuppressMouseOverEffect(defaultStore

   123 				.getSuppressMouseOverEffect());

   124 		modelControlWidget.setFixItemSize(defaultStore.getFixItemSize());

   125 	}

   126 

   127 	private void storeValues() {

   128 		instanceStore.setHighlightCoreOS(modelControlWidget

   129 				.getHighlightCoreOS());

   130 		instanceStore.setLevelOfDetail(modelControlWidget.getLevelOfDetail());

   131 		instanceStore.setPrintedDpis(modelControlWidget.getPrintedDpis());

   132 		instanceStore.setSelectedPrintedDpi(modelControlWidget

   133 				.getSelectedPrintedDpi());

   134 		instanceStore.setSuppressMouseOverEffect(modelControlWidget

   135 				.getSuppressMouseOverEffect());

   136 		instanceStore.setFixItemSize(modelControlWidget.getFixItemSize());

   137 	}

   138 

   139 	/**

   140 	 * This method is called by the observed object when a change occurs to

   141 	 * ensure the information entered into the widget is acceptable. In this

   142 	 * case we set the page in error mode if validation of the printed DPI field

   143 	 * fails.

   144 	 * 

   145 	 * @return void

   146 	 * @see com.symbian.smt.gui.smtwidgets.ValidModelDefinedListener#validModelDefined(ValidModelEvent)

   147 	 **/

   148 	public void validModelDefined(ValidModelEvent event) {

   149 		Boolean isValid = event.isValid();

   150 		Type eventType = event.getType();

   151 

   152 		setValid(isValid);

   153 

   154 		if (isValid) {

   155 			setErrorMessage(null);

   156 

   157 			if (eventType == Type.WARNING) {

   158 				setMessage(event.getMessage(), WARNING);

   159 			}

   160 		} else {

   161 			setErrorMessage(event.getMessage());

   162 			setMessage(null);

   163 		}

   164 	}

   165 }