bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/ModelledButton.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.browsing.ui.swt;
  13
  14 import org.eclipse.jface.resource.ImageDescriptor;
  15 import org.eclipse.jface.resource.JFaceResources;
  16 import org.eclipse.jface.resource.LocalResourceManager;
  17 import org.eclipse.swt.SWT;
  18 import org.eclipse.swt.events.SelectionEvent;
  19 import org.eclipse.swt.events.SelectionListener;
  20 import org.eclipse.swt.graphics.Image;
  21 import org.eclipse.swt.layout.GridData;
  22 import org.eclipse.swt.widgets.Composite;
  23 import org.eclipse.swt.widgets.Control;
  24 import org.eclipse.ui.IWorkbenchSite;
  25 import org.simantics.Simantics;
  26 import org.simantics.browsing.ui.common.ErrorLogger;
  27 import org.simantics.browsing.ui.swt.stubs.BrowsingResource;
  28 import org.simantics.browsing.ui.swt.widgets.Button;
  29 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;
  30 import org.simantics.databoard.Bindings;
  31 import org.simantics.db.ReadGraph;
  32 import org.simantics.db.Resource;
  33 import org.simantics.db.exception.DatabaseException;
  34 import org.simantics.db.management.ISessionContext;
  35 import org.simantics.db.request.Read;
  36
  37 public class ModelledButton implements ModelledControl {
  38
  39         final private Resource configuration;
  40
  41         public ModelledButton(Resource configuration) {
  42                 this.configuration = configuration;
  43         }
  44
  45         @Override
  46         public Control create(Composite parent, final IWorkbenchSite site, final ISessionContext context, final WidgetSupport support) throws DatabaseException {
  47
  48         LocalResourceManager resourceManager = new LocalResourceManager(JFaceResources.getResources(), parent);
  49
  50                 Button button = new Button(parent, support, SWT.READ_ONLY);
  51
  52         GridData gridData = Simantics.getSession().syncRequest(new Read<GridData>() {
  53
  54             @Override
  55             public GridData perform(ReadGraph graph) throws DatabaseException {
  56                 BrowsingResource br = BrowsingResource.getInstance(graph);
  57                 GridData data = new GridData(SWT.LEFT, SWT.CENTER, false, false);
  58                 Integer span = graph.getPossibleRelatedValue(configuration, br.Control_HorizontalSpan, Bindings.INTEGER);
  59                 if(span != null) data.horizontalSpan = span;
  60                 Boolean grabExcessHorizontalSpace = graph.getPossibleRelatedValue(configuration, br.Control_HorizontalGrab, Bindings.BOOLEAN);
  61                 if(grabExcessHorizontalSpace != null) data.grabExcessHorizontalSpace = grabExcessHorizontalSpace;
  62                 return data;
  63             }
  64
  65         });
  66
  67         button.setLayoutData(gridData);
  68
  69                 String text = Simantics.getSession().syncRequest(new Read<String>() {
  70
  71                         @Override
  72                         public String perform(ReadGraph graph) throws DatabaseException {
  73                                 BrowsingResource br = BrowsingResource.getInstance(graph);
  74                                 return graph.getPossibleRelatedValue(configuration, br.Button_Text);
  75                         }
  76
  77                 });
  78
  79                 if(text != null) button.setText(text);
  80
  81                 String tooltip = Simantics.getSession().syncRequest(new Read<String>() {
  82
  83                         @Override
  84                         public String perform(ReadGraph graph) throws DatabaseException {
  85                                 BrowsingResource br = BrowsingResource.getInstance(graph);
  86                                 return graph.getPossibleRelatedValue(configuration, br.Button_Tooltip);
  87                         }
  88
  89                 });
  90
  91                 if(tooltip != null) button.setTooltipText(tooltip);
  92
  93                 ModelledIcon icon = Simantics.getSession().syncRequest(new Read<ModelledIcon>() {
  94
  95                         @Override
  96                         public ModelledIcon perform(ReadGraph graph) throws DatabaseException {
  97                                 BrowsingResource br = BrowsingResource.getInstance(graph);
  98                                 Resource icon = graph.getPossibleObject(configuration, br.Button_Icon);
  99                                 if(icon == null) return null;
 100                                 else return graph.adapt(icon, ModelledIcon.class);
 101                         }
 102
 103                 });
 104
 105                 if(icon != null) {
 106                         ImageDescriptor iconDescriptor = icon.create();
 107                         if (iconDescriptor != null) {
 108                             Image image = resourceManager.createImage(iconDescriptor);
 109                             button.setImage(image);
 110                         } else {
 111                             ErrorLogger.defaultLogWarning("Could not load icon " + icon, null);
 112                         }
 113                 }
 114
 115                 ModelledAction modelledAction = Simantics.getSession().syncRequest(new Read<ModelledAction>() {
 116
 117                         @Override
 118                         public ModelledAction perform(ReadGraph graph) throws DatabaseException {
 119                                 BrowsingResource br = BrowsingResource.getInstance(graph);
 120                                 Resource action = graph.getPossibleObject(configuration, br.Button_Action);
 121                                 if(action == null) return null;
 122                                 return graph.adapt(action, ModelledAction.class);
 123                         }
 124
 125                 });
 126
 127                 final Runnable actionRunnable = modelledAction != null ? modelledAction.create(site, context, support) : null;
 128
 129                 button.addSelectionListener(new SelectionListener() {
 130
 131                         @Override
 132                         public void widgetSelected(SelectionEvent e) {
 133                                 if(actionRunnable != null) actionRunnable.run();
 134                         }
 135
 136                         @Override
 137                         public void widgetDefaultSelected(SelectionEvent e) {
 138                                 widgetSelected(e);
 139                         }
 140
 141                 });
 142
 143                 return button.getWidget();
 144
 145         }
 146
 147 }