gerrit.simantics Code Review - simantics/sysdyn.git/blob

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 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.sysdyn.ui.menu;\r
  13 \r
  14 import java.awt.Color;\r
  15 import java.awt.Font;\r
  16 \r
  17 import org.eclipse.jface.action.ContributionItem;\r
  18 import org.eclipse.jface.action.IContributionItem;\r
  19 import org.eclipse.swt.SWT;\r
  20 import org.eclipse.swt.events.SelectionEvent;\r
  21 import org.eclipse.swt.events.SelectionListener;\r
  22 import org.eclipse.swt.widgets.Menu;\r
  23 import org.eclipse.swt.widgets.MenuItem;\r
  24 import org.simantics.db.ReadGraph;\r
  25 import org.simantics.db.Resource;\r
  26 import org.simantics.db.WriteGraph;\r
  27 import org.simantics.db.common.request.WriteRequest;\r
  28 import org.simantics.db.exception.DatabaseException;\r
  29 import org.simantics.diagram.G2DUtils;\r
  30 import org.simantics.diagram.stubs.G2DResource;\r
  31 import org.simantics.sysdyn.ui.properties.widgets.CustomFontDialog;\r
  32 import org.simantics.ui.SimanticsUI;\r
  33 import org.simantics.ui.contribution.DynamicMenuContribution;\r
  34 import org.simantics.ui.utils.ResourceAdaptionUtils;\r
  35 \r
  36 /**\r
  37  * Context menu contribution for modifying fonts and font colors in diagram elements\r
  38  * \r
  39  * @author Teemu Lempinen\r
  40  *\r
  41  */\r
  42 public class FontContextMenuContribution extends DynamicMenuContribution {\r
  43 \r
  44         @Override\r
  45         protected IContributionItem[] getContributionItems(final ReadGraph graph,\r
  46                         Object[] selection) throws DatabaseException {\r
  47                 if (selection.length == 0)\r
  48                         return new IContributionItem[0];\r
  49 \r
  50                 return new IContributionItem[] { new ContributionItem() {\r
  51 \r
  52                         @Override\r
  53                         public void fill(Menu menu, int index) {\r
  54 \r
  55                                 G2DResource G2D = G2DResource.getInstance(graph);\r
  56 \r
  57                                 Object[] selections = getSelectedObjects();\r
  58 \r
  59                                 Font font = null;\r
  60                                 Color color = null;\r
  61 \r
  62                                 /*\r
  63                                  *  Find a common font and color for the selected elements.\r
  64                                  *  \r
  65                                  *  If a common font or color is not found, the initial value in dialog is empty.\r
  66                                  */\r
  67                                 try {\r
  68                                         for(Object o : selections) {\r
  69                                                 Resource element = ResourceAdaptionUtils\r
  70                                                                 .adaptToResource(o);\r
  71                                                 if(element != null) {\r
  72                                                         Resource fontResource = graph.getPossibleObject(element, G2D.HasFont);\r
  73                                                         if(fontResource != null) { \r
  74                                                                 Font newFont = G2DUtils.getFont(graph, fontResource);\r
  75                                                                 if(font == null) {\r
  76                                                                         font = newFont;\r
  77                                                                 }\r
  78 \r
  79                                                                 if(font != null && !font.equals(newFont)) {\r
  80                                                                         font = null;\r
  81                                                                         break;\r
  82                                                                 }\r
  83                                                         }\r
  84                                                 }\r
  85                                         }\r
  86                                 } catch (DatabaseException e) {\r
  87                                         e.printStackTrace();\r
  88                                 }\r
  89 \r
  90                                 try {\r
  91                                         for(Object o : selections) {\r
  92                                                 Resource element = ResourceAdaptionUtils\r
  93                                                                 .adaptToResource(o);\r
  94                                                 if(element != null) {\r
  95                                                     Resource colorResource = graph.getPossibleObject(element, G2D.HasColor);\r
  96                                                     if(colorResource != null ) {\r
  97                                                         Color newColor = G2DUtils.getColor(graph, colorResource);\r
  98                                                         if(color == null)\r
  99                                                             color = newColor;\r
 100 \r
 101                                                         if(color != null && !color.equals(newColor))  {\r
 102                                                             color = null;\r
 103                                                             break;\r
 104                                                         }\r
 105                                                     }                    \r
 106                                                 }\r
 107                                         }\r
 108                                 } catch (DatabaseException e) {\r
 109                                 }\r
 110 \r
 111                                 // Create the menu item with a selection listener\r
 112                                 MenuItem item;\r
 113                                 item = new MenuItem(menu, SWT.PUSH);\r
 114 \r
 115                                 item.setText("Font...");\r
 116 \r
 117                                 item.addSelectionListener(new FontSelectionListener(selections, font, color));\r
 118                         }\r
 119                 } \r
 120                 };\r
 121 \r
 122         }\r
 123 \r
 124         /**\r
 125          * Selection listener for font context menu action\r
 126          * @author Teemu Lempinen\r
 127          *\r
 128          */\r
 129         class FontSelectionListener implements SelectionListener {\r
 130 \r
 131                 private Font font;\r
 132                 private Color color;\r
 133                 private Object[] selections;\r
 134 \r
 135                 /**\r
 136                  * Font selection listener for context menu action in diagram\r
 137                  * \r
 138                  * @param selections Selected elements\r
 139                  * @param font Possible common font for the selected elements\r
 140                  * @param color Possible common color for the selected elements\r
 141                  */\r
 142                 public FontSelectionListener(Object[] selections, Font font, Color color) {\r
 143                         this.selections = selections;\r
 144                         this.font = font;\r
 145                         this.color = color;\r
 146                 }\r
 147 \r
 148                 @Override\r
 149                 public void widgetSelected(SelectionEvent e) {\r
 150                         // Create the dialog\r
 151                         CustomFontDialog dialog = new CustomFontDialog(e.widget.getDisplay().getActiveShell(), "Sample");\r
 152 \r
 153                         // Set possible font and color defaults\r
 154                         if(font != null)\r
 155                                 dialog.setAWTFont(font);\r
 156 \r
 157                         if(color != null)\r
 158                                 dialog.setColor(color);\r
 159 \r
 160                         // Open dialog\r
 161                         dialog.open();\r
 162 \r
 163                         // Get results\r
 164                         final Font resultFont = dialog.getAWTFont();\r
 165                         final Color resultColor = dialog.getAWTColor();\r
 166 \r
 167                         // Apply results to all selected elements\r
 168                         SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
 169 \r
 170                                 @Override\r
 171                                 public void perform(WriteGraph graph) throws DatabaseException {\r
 172                                         G2DResource G2D = G2DResource.getInstance(graph);\r
 173 \r
 174                                         for(Object o : selections) {\r
 175                                                 Resource element = ResourceAdaptionUtils\r
 176                                                                 .adaptToResource(o);\r
 177                                                 if(resultFont != null) {\r
 178                                                         graph.deny(element, G2D.HasFont);\r
 179                                                         graph.claim(element, G2D.HasFont, G2DUtils.createFont(graph, resultFont));\r
 180                                                 }\r
 181 \r
 182                                                 if(resultColor != null) {\r
 183                                                         graph.deny(element, G2D.HasColor);\r
 184                                                         graph.claim(element, G2D.HasColor, G2DUtils.createColor(graph, resultColor));\r
 185                                                 }\r
 186                                         }\r
 187                                 }\r
 188                         });\r
 189                 }\r
 190 \r
 191                 @Override\r
 192                 public void widgetDefaultSelected(SelectionEvent e) {\r
 193                 }\r
 194 \r
 195         }\r
 196 }\r