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

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