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

   1 package org.simantics.district.imports.ui;
   2
   3 import java.nio.file.Files;
   4 import java.nio.file.Path;
   5 import java.nio.file.Paths;
   6 import java.util.Collection;
   7 import java.util.HashMap;
   8 import java.util.Map;
   9
  10 import org.eclipse.jface.layout.GridDataFactory;
  11 import org.eclipse.jface.layout.GridLayoutFactory;
  12 import org.eclipse.jface.wizard.WizardPage;
  13 import org.eclipse.swt.SWT;
  14 import org.eclipse.swt.events.SelectionEvent;
  15 import org.eclipse.swt.events.SelectionListener;
  16 import org.eclipse.swt.layout.GridLayout;
  17 import org.eclipse.swt.widgets.Combo;
  18 import org.eclipse.swt.widgets.Composite;
  19 import org.eclipse.swt.widgets.Group;
  20 import org.simantics.Simantics;
  21 import org.simantics.db.ReadGraph;
  22 import org.simantics.db.Resource;
  23 import org.simantics.db.common.request.ReadRequest;
  24 import org.simantics.db.exception.DatabaseException;
  25 import org.simantics.district.network.ui.function.Functions;
  26 import org.simantics.modeling.ModelingResources;
  27 import org.simantics.utils.ui.widgets.FileOrDirectorySelectionWidget;
  28 import org.simantics.utils.ui.widgets.FileSelectionListener;
  29 import org.simantics.utils.ui.widgets.FileSelectionWidget;
  30
  31 public class CSVImportWizardFirstPage extends WizardPage implements FileSelectionListener {
  32
  33     private final CSVImportModel model;
  34
  35     private Map<String, Resource> diagrams = new HashMap<>();
  36
  37     private Combo diagramCombo;
  38     private FileSelectionWidget csvSelection;
  39
  40     public CSVImportWizardFirstPage(CSVImportModel model) {
  41         super("Select source for CSV data");
  42         this.model = model;
  43         setMessage("Select target network diagram and source for CSV-data");
  44     }
  45
  46     @Override
  47     public void createControl(Composite parent) {
  48         Composite composite = new Composite(parent, SWT.NONE);
  49         composite.setLayout(new GridLayout(1,false));
  50         GridDataFactory.fillDefaults().grab(true, true).align(SWT.FILL, SWT.FILL).applyTo(composite);
  51
  52         Group parentConfigurationGroup = new Group(composite, SWT.NONE);
  53         parentConfigurationGroup.setText("Select target network diagram");
  54         GridDataFactory.fillDefaults().grab(true, false).span(2, 1).applyTo(parentConfigurationGroup);
  55
  56         diagramCombo = new Combo(parentConfigurationGroup, SWT.DROP_DOWN | SWT.READ_ONLY);
  57         diagramCombo.addSelectionListener(new SelectionListener() {
  58
  59             @Override
  60             public void widgetSelected(SelectionEvent e) {
  61                 widgetDefaultSelected(e);
  62             }
  63
  64             @Override
  65             public void widgetDefaultSelected(SelectionEvent e) {
  66                 String selection = diagramCombo.getItem(diagramCombo.getSelectionIndex());
  67                 model.setParentDiagram(diagrams.get(selection));
  68                 validateComplete();
  69             }
  70         });
  71
  72         GridLayoutFactory.fillDefaults().numColumns(1).equalWidth(false).extendedMargins(12, 12, 12, 12).spacing(5, 4).applyTo(parentConfigurationGroup);
  73
  74         csvSelection = new FileSelectionWidget(composite, "CSV file", SWT.OPEN);
  75         csvSelection.addListener(this);
  76
  77         updateAvailableParents();
  78
  79         validateComplete();
  80
  81         setControl(composite);
  82     }
  83
  84     private void updateAvailableParents() {
  85         try {
  86             Simantics.getSession().syncRequest(new ReadRequest() {
  87
  88                 @Override
  89                 public void run(ReadGraph graph) throws DatabaseException {
  90                     Collection<Resource> diagrams = Functions.getDistrictDiagrams(graph);
  91                     ModelingResources MOD = ModelingResources.getInstance(graph);
  92                     Resource projectResource = Simantics.getProjectResource();
  93                     String projectURI = graph.getURI(projectResource);
  94                     for (Resource diagram : diagrams) {
  95                         Resource composite = graph.getSingleObject(diagram, MOD.DiagramToComposite);
  96                         String compositeURI = graph.getURI(composite);
  97                         String path = compositeURI.replace(projectURI, "");
  98                         CSVImportWizardFirstPage.this.diagrams.put(path, diagram);
  99                     }
 100                 }
 101             });
 102             diagramCombo.setItems(diagrams.keySet().toArray(new String[diagrams.size()]));
 103             if (diagrams.size() > 0) {
 104                 diagramCombo.select(0);
 105                 model.setParentDiagram(diagrams.get(diagramCombo.getItem(0)));
 106                 diagramCombo.getDisplay().asyncExec(() -> validateComplete());
 107             }
 108         } catch (DatabaseException e) {
 109             e.printStackTrace();
 110         }
 111     }
 112
 113     @Override
 114     public void fileSelected(FileOrDirectorySelectionWidget source, String[] filename) {
 115         String[] selection = csvSelection.getFilename();
 116         if (selection != null && selection.length > 0) {
 117             Path csvFile = Paths.get(selection[0]);
 118             if (!Files.exists(csvFile)) {
 119                 setErrorMessage("File " + csvFile.toAbsolutePath() + " does not exist");
 120             } else {
 121                 model.setSource(csvFile);
 122                 validateComplete();
 123             }
 124         }
 125     }
 126
 127     private void validateComplete() {
 128         setPageComplete(model.getSource() != null && model.getParentDiagram() != null);
 129     }
 130 }