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

   1 package org.simantics.sysdyn.ui.wizards.mdl;\r
   2 \r
   3 import java.io.File;\r
   4 \r
   5 import org.eclipse.core.runtime.Path;\r
   6 import org.eclipse.jface.layout.PixelConverter;\r
   7 import org.eclipse.jface.viewers.IStructuredSelection;\r
   8 import org.eclipse.jface.wizard.WizardPage;\r
   9 import org.eclipse.swt.SWT;\r
  10 import org.eclipse.swt.events.ModifyEvent;\r
  11 import org.eclipse.swt.events.ModifyListener;\r
  12 import org.eclipse.swt.events.SelectionAdapter;\r
  13 import org.eclipse.swt.events.SelectionEvent;\r
  14 import org.eclipse.swt.layout.GridData;\r
  15 import org.eclipse.swt.layout.GridLayout;\r
  16 import org.eclipse.swt.widgets.Button;\r
  17 import org.eclipse.swt.widgets.Composite;\r
  18 import org.eclipse.swt.widgets.FileDialog;\r
  19 import org.eclipse.swt.widgets.Label;\r
  20 import org.eclipse.swt.widgets.Shell;\r
  21 import org.eclipse.swt.widgets.Text;\r
  22 import org.simantics.db.Resource;\r
  23 import org.simantics.db.WriteGraph;\r
  24 import org.simantics.db.common.request.WriteRequest;\r
  25 import org.simantics.db.exception.DatabaseException;\r
  26 import org.simantics.sysdyn.mdlImport.MdlParser;\r
  27 import org.simantics.sysdyn.mdlImport.mdlElements.Model;\r
  28 import org.simantics.ui.SimanticsUI;\r
  29 \r
  30 public class WizardMdlImportPage extends WizardPage{\r
  31         \r
  32         // dialog store id constants\r
  33         private Text filePathField;\r
  34         \r
  35         // Keep track of the archive that we browsed to last time\r
  36         // the wizard was invoked.\r
  37         private static String previouslyBrowsedFile = "";\r
  38 \r
  39         private Button browseDirectoriesButton;\r
  40         \r
  41         /**\r
  42          * Creates a new project creation wizard page.\r
  43          * \r
  44          */\r
  45         public WizardMdlImportPage() {\r
  46                 this("wizardMdlImportPage", null, null); //$NON-NLS-1$\r
  47         }\r
  48 \r
  49         /**\r
  50          * Create a new instance of the receiver.\r
  51          * \r
  52          * @param pageName\r
  53          */\r
  54         public WizardMdlImportPage(String pageName) {\r
  55                 this(pageName,null, null);\r
  56         }\r
  57                         \r
  58         /**\r
  59          * More (many more) parameters.\r
  60          * \r
  61          * @param pageName\r
  62          * @param initialPath\r
  63          * @param currentSelection\r
  64          * @since 3.5\r
  65          */\r
  66         public WizardMdlImportPage(String pageName,String initialPath,\r
  67                         IStructuredSelection currentSelection) {\r
  68                 super(pageName);\r
  69                 setPageComplete(false);\r
  70                 setTitle("Import Vensim model");\r
  71                 setDescription("Choose the Vensim model file (.mdl), then press Finish.");\r
  72         }\r
  73 \r
  74         public void createControl(Composite parent) {\r
  75         \r
  76                 initializeDialogUnits(parent);\r
  77 \r
  78                 Composite workArea = new Composite(parent, SWT.NONE);\r
  79                 setControl(workArea);\r
  80 \r
  81                 workArea.setLayout(new GridLayout());\r
  82                 workArea.setLayoutData(new GridData(GridData.FILL_BOTH\r
  83                                 | GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL));\r
  84 \r
  85                 createProjectsRoot(workArea);   \r
  86         }\r
  87         \r
  88         private void createProjectsRoot(Composite workArea) {\r
  89 \r
  90                 // set label for field\r
  91                 Label title = new Label(workArea, SWT.NONE);\r
  92                 title.setText("Select Vensim model source:");\r
  93                 \r
  94                 Composite projectGroup = new Composite(workArea, SWT.NONE);\r
  95                 GridLayout layout = new GridLayout();\r
  96                 layout.numColumns = 2;\r
  97                 layout.makeColumnsEqualWidth = false;\r
  98                 layout.marginWidth = 0;\r
  99 \r
 100                 projectGroup.setLayout(layout);\r
 101                 projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));\r
 102 \r
 103                 // model location entry field\r
 104                 this.filePathField = new Text(projectGroup, SWT.BORDER);\r
 105                 \r
 106                 GridData directoryPathData = new GridData(SWT.FILL, SWT.NONE, true, false);\r
 107                 directoryPathData.widthHint = new PixelConverter(filePathField).convertWidthInCharsToPixels(25);\r
 108                 filePathField.setLayoutData(directoryPathData);\r
 109                 filePathField.addModifyListener(new ModifyListener(){\r
 110             @Override\r
 111             public void modifyText(ModifyEvent e) {\r
 112                 previouslyBrowsedFile = filePathField.getText();        \r
 113             }\r
 114                 });\r
 115                 if (previouslyBrowsedFile != null){\r
 116                         filePathField.setText(previouslyBrowsedFile);\r
 117                         validatePage();\r
 118                 }\r
 119                 \r
 120                 // browse button\r
 121                 browseDirectoriesButton = new Button(projectGroup, SWT.PUSH);\r
 122                 browseDirectoriesButton.setText("Browse");\r
 123                 setButtonLayoutData(browseDirectoriesButton);\r
 124                 \r
 125                 browseDirectoriesButton.addSelectionListener(new SelectionAdapter() {\r
 126                         /*\r
 127                          * (non-Javadoc)\r
 128                          * \r
 129                          * @see org.eclipse.swt.events.SelectionAdapter#widgetS\r
 130                          * elected(org.eclipse.swt.events.SelectionEvent)\r
 131                          */\r
 132                         public void widgetSelected(SelectionEvent e) {\r
 133                                 handleLocationDirectoryButtonPressed();\r
 134                         }\r
 135                 });\r
 136                 \r
 137         }\r
 138         \r
 139         //Set filePathField active\r
 140         public void setVisible(boolean visible) {\r
 141                 super.setVisible(visible);\r
 142                 this.filePathField.setFocus();\r
 143         }\r
 144         \r
 145         //Open dialog for choosing the file\r
 146         protected void handleLocationDirectoryButtonPressed() {\r
 147                 \r
 148                 final Shell shell = filePathField.getShell();\r
 149 \r
 150                 FileDialog dialog = new FileDialog(shell, SWT.OPEN);\r
 151                 String[] ext = {"*.mdl"};\r
 152                 dialog.setFilterExtensions(ext);\r
 153                 dialog.setText("Import Vensim model (.mdl)");\r
 154 \r
 155                 String dirName = filePathField.getText().trim();\r
 156                 \r
 157                 File path = new File(dirName);\r
 158                 if (path.exists()) {\r
 159                         dialog.setFilterPath(new Path(dirName).toOSString());   \r
 160                 }\r
 161                 \r
 162                 String selectedFile = dialog.open();\r
 163                 if (selectedFile != null) {\r
 164                         filePathField.setText(selectedFile);\r
 165                         validatePage();\r
 166                 }\r
 167 \r
 168         }\r
 169         \r
 170         //Create project after finish is pressed.\r
 171         public boolean createProjects() {\r
 172                 \r
 173                 final Resource project = SimanticsUI.getProject().get();\r
 174                 if(project == null) return false;\r
 175 \r
 176                 String selected = previouslyBrowsedFile;\r
 177                 if(selected == null) return false;\r
 178                 \r
 179                 File file = new File(selected);\r
 180                 \r
 181                 final Model model = MdlParser.parse(file);\r
 182                 \r
 183                 SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
 184                         \r
 185                         @Override\r
 186                         public void perform(WriteGraph graph) throws DatabaseException {\r
 187                                 model.write(graph, project);\r
 188                         }\r
 189                 });\r
 190                 \r
 191                 return true;\r
 192                 \r
 193         }\r
 194     void validatePage(){\r
 195         \r
 196                 if (previouslyBrowsedFile.isEmpty()){\r
 197                         setPageComplete(false);\r
 198                         return;\r
 199                 }\r
 200                 \r
 201                 setPageComplete(true);\r
 202     }\r
 203 }\r
 204