bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/PageSettingsDialog.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in 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.modeling.ui.diagram;
  13
  14 import org.eclipse.jface.dialogs.Dialog;
  15 import org.eclipse.jface.layout.GridDataFactory;
  16 import org.eclipse.jface.layout.GridLayoutFactory;
  17 import org.eclipse.swt.SWT;
  18 import org.eclipse.swt.events.ModifyEvent;
  19 import org.eclipse.swt.events.ModifyListener;
  20 import org.eclipse.swt.events.SelectionAdapter;
  21 import org.eclipse.swt.events.SelectionEvent;
  22 import org.eclipse.swt.widgets.Button;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.swt.widgets.Control;
  25 import org.eclipse.swt.widgets.Display;
  26 import org.eclipse.swt.widgets.Group;
  27 import org.eclipse.swt.widgets.Label;
  28 import org.eclipse.swt.widgets.Shell;
  29 import org.eclipse.swt.widgets.Text;
  30 import org.simantics.Simantics;
  31 import org.simantics.db.ReadGraph;
  32 import org.simantics.db.Resource;
  33 import org.simantics.db.Session;
  34 import org.simantics.db.WriteGraph;
  35 import org.simantics.db.common.request.IndexRoot;
  36 import org.simantics.db.common.request.ReadRequest;
  37 import org.simantics.db.common.request.WriteRequest;
  38 import org.simantics.db.exception.DatabaseException;
  39 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;
  40 import org.simantics.modeling.ui.preferences.DiagramPreferences;
  41 import org.simantics.scl.commands.Commands;
  42 import org.simantics.utils.page.PageDesc;
  43
  44 /**
  45  * A dialog for changing page settings
  46  *
  47  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
  48  */
  49 public class PageSettingsDialog extends Dialog {
  50
  51     private final Session session;
  52     private final Resource diagramResource;
  53
  54     private PageDescComposite pdc;
  55     private Text gridSizeText;
  56     private Button showBordersButton;
  57     private Button showMarginsButton;
  58
  59     private PageDesc pageDesc;
  60     private double gridSize;
  61     private double lastGridSize;
  62     private boolean borders = false;
  63     private boolean margins = false;
  64
  65
  66     public PageSettingsDialog(Resource diagramResource, Shell parentShell) {
  67         super(parentShell);
  68         this.session = Simantics.getSession();
  69         this.diagramResource = diagramResource;
  70     }
  71
  72
  73     @Override
  74     protected void configureShell(Shell newShell) {
  75         super.configureShell(newShell);
  76         newShell.setText(Messages.PageSettingsDialog_PageSettings);
  77     }
  78
  79     @Override
  80     protected Control createDialogArea(Composite parent) {
  81         Composite composite = (Composite) super.createDialogArea(parent);
  82
  83         Group group = new Group(composite, SWT.NONE);
  84         group.setText(Messages.PageSettingsDialog_GridSnapping);
  85         GridDataFactory.fillDefaults().grab(true, false).span(1, 1).applyTo(group);
  86         Label label = new Label(group, SWT.NONE);
  87         label.setText(Messages.PageSettingsDialog_GridSizeMM);
  88         gridSizeText = new Text(group, SWT.SINGLE|SWT.BORDER);
  89         GridLayoutFactory.fillDefaults().numColumns(2).equalWidth(false).extendedMargins(12, 12, 12, 12).spacing(5, 4).applyTo(group);
  90         GridDataFactory.fillDefaults().grab(true, false).span(1, 1).applyTo(gridSizeText);
  91
  92         Group pageGroup = new Group(composite, SWT.NONE);
  93         pageGroup.setText(Messages.PageSettingsDialog_PageSize);
  94         pdc = new PageDescComposite(pageGroup, SWT.NONE);
  95         GridDataFactory.fillDefaults().grab(true, false).span(1, 1).applyTo(pageGroup);
  96         GridLayoutFactory.fillDefaults().numColumns(1).equalWidth(false).extendedMargins(12, 12, 12, 12).spacing(5, 4).applyTo(pageGroup);
  97         GridDataFactory.fillDefaults().grab(true, true).span(1, 1).applyTo(pdc);
  98
  99         Group displayGroup = new Group(composite, SWT.NONE);
 100         displayGroup.setText(Messages.PageSettingsDialog_Display);
 101         showBordersButton = new Button(displayGroup, SWT.CHECK);
 102         showBordersButton.setText(Messages.PageSettingsDialog_ShowPageBorders);
 103         showMarginsButton = new Button(displayGroup, SWT.CHECK);
 104         showMarginsButton.setText(Messages.PageSettingsDialog_ShowMargins);
 105         GridLayoutFactory.fillDefaults().numColumns(1).equalWidth(false).extendedMargins(12, 12, 12, 12).spacing(5, 4).applyTo(displayGroup);
 106
 107         GridDataFactory.fillDefaults().grab(true, false).span(1, 1).applyTo(displayGroup);
 108
 109         gridSizeText.addModifyListener(new ModifyListener() {
 110             @Override
 111             public void modifyText(ModifyEvent e) {
 112                 String text = ((Text)e.widget).getText();
 113                 try {
 114                     gridSize = Double.parseDouble(text);
 115                     if (gridSize < 1e-3 || gridSize > 1e3) {
 116                         gridSize = lastGridSize;
 117                         setGridSizeValid(false);
 118                     } else {
 119                         setGridSizeValid(true);
 120                     }
 121                 } catch (NumberFormatException err) {
 122                     gridSize = lastGridSize;
 123                     setGridSizeValid(false);
 124                 }
 125             }
 126
 127             void setGridSizeValid(boolean valid) {
 128                 if (valid) {
 129                     gridSizeText.setBackground(null);
 130                     gridSizeText.setForeground(null);
 131                 } else {
 132                     //gridSizeText.setBackground(gridSizeText.getDisplay().getSystemColor(SWT.COLOR_RED));
 133                     gridSizeText.setForeground(gridSizeText.getDisplay().getSystemColor(SWT.COLOR_RED));
 134                 }
 135             }
 136         });
 137
 138         showBordersButton.addSelectionListener(new SelectionAdapter() {
 139             @Override
 140             public void widgetSelected(SelectionEvent e) {
 141                 borders = ((Button)e.widget).getSelection();
 142             }
 143         });
 144
 145         showMarginsButton.addSelectionListener(new SelectionAdapter() {
 146             @Override
 147             public void widgetSelected(SelectionEvent e) {
 148                 margins = ((Button)e.widget).getSelection();
 149             }
 150         });
 151
 152         loadValues();
 153
 154         return composite;
 155     }
 156
 157     public void applySettings() {
 158         if (pdc.getPageDesc() != null)
 159             pageDesc = pdc.getPageDesc();
 160         session.markUndoPoint();
 161         session.asyncRequest(new WriteRequest() {
 162             @Override
 163             public void perform(WriteGraph graph) throws DatabaseException {
 164                 Resource model = graph.syncRequest(new IndexRoot(diagramResource));
 165                 Commands.get(graph, "Simantics/PageSettings/setPageDesc") //$NON-NLS-1$
 166                         .execute(graph, model, diagramResource, pageDesc.toRepr());
 167                 Commands.get(graph, "Simantics/PageSettings/setGridSize") //$NON-NLS-1$
 168                         .execute(graph, model, diagramResource, gridSize);
 169                 Commands.get(graph, "Simantics/PageSettings/setPageBordersVisible") //$NON-NLS-1$
 170                         .execute(graph, model, diagramResource, borders);
 171                 Commands.get(graph, "Simantics/PageSettings/setMarginsVisible") //$NON-NLS-1$
 172                         .execute(graph, model, diagramResource, margins);
 173             }
 174         });
 175     }
 176
 177     private void loadValues() {
 178         session.asyncRequest(new ReadRequest() {
 179
 180             @Override
 181             public void run(ReadGraph graph) throws DatabaseException {
 182                 pageDesc = DiagramGraphUtil.getPageDesc(graph, diagramResource, PageDesc.DEFAULT);
 183                 gridSize = DiagramGraphUtil.getGridSize(graph, diagramResource, DiagramPreferences.DEFAULT_SNAP_GRID_SIZE);
 184                 lastGridSize = gridSize;
 185                 borders = DiagramGraphUtil.isPageBordersVisible(graph, diagramResource);
 186                 margins = DiagramGraphUtil.isMarginsVisible(graph, diagramResource);
 187                 Display.getDefault().asyncExec(new Runnable() {
 188                     @Override
 189                     public void run() {
 190                         applyValues();
 191                     }
 192                 });
 193             }
 194         });
 195     }
 196
 197     private void applyValues() {
 198         pdc.setPageDesc(pageDesc);
 199         gridSizeText.setText(Double.toString(gridSize));
 200         showBordersButton.setSelection(borders);
 201         showMarginsButton.setSelection(margins);
 202     }
 203
 204 }