org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/fs/FsTableViewer.java

   1 package org.argeo.eclipse.ui.fs;
   2
   3 import java.nio.file.Path;
   4 import java.util.List;
   5
   6 import org.argeo.eclipse.ui.ColumnDefinition;
   7 import org.eclipse.jface.viewers.ILazyContentProvider;
   8 import org.eclipse.jface.viewers.TableViewer;
   9 import org.eclipse.jface.viewers.TableViewerColumn;
  10 import org.eclipse.jface.viewers.Viewer;
  11 import org.eclipse.swt.SWT;
  12 import org.eclipse.swt.layout.GridData;
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.swt.widgets.Table;
  15 import org.eclipse.swt.widgets.TableColumn;
  16
  17 /**
  18  * Canonical implementation of a JFace table viewer to display the content of a
  19  * file folder
  20  */
  21 public class FsTableViewer extends TableViewer {
  22         private static final long serialVersionUID = -5632407542678477234L;
  23
  24         private boolean showHiddenItems = false;
  25         private boolean folderFirst = true;
  26         private boolean reverseOrder = false;
  27         private String orderProperty = FsUiConstants.PROPERTY_NAME;
  28
  29         public FsTableViewer(Composite parent, int style) {
  30                 super(parent, style | SWT.VIRTUAL);
  31         }
  32
  33         public Table configureDefaultSingleColumnTable(int tableWidthHint) {
  34                 Table table = this.getTable();
  35                 table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
  36                 table.setLinesVisible(false);
  37                 table.setHeaderVisible(false);
  38                 // CmsUtils.markup(table);
  39                 // CmsUtils.style(table, MaintenanceStyles.BROWSER_COLUMN);
  40
  41                 TableViewerColumn column = new TableViewerColumn(this, SWT.NONE);
  42                 TableColumn tcol = column.getColumn();
  43                 tcol.setWidth(tableWidthHint);
  44                 column.setLabelProvider(new FileIconNameLabelProvider());
  45                 this.setContentProvider(new MyLazyCP());
  46                 return table;
  47         }
  48
  49         public Table configureDefaultTable(List<ColumnDefinition> columns) {
  50                 this.setContentProvider(new MyLazyCP());
  51                 Table table = this.getTable();
  52                 table.setLinesVisible(true);
  53                 table.setHeaderVisible(true);
  54                 // CmsUtils.markup(table);
  55                 // CmsUtils.style(table, MaintenanceStyles.BROWSER_COLUMN);
  56                 for (ColumnDefinition colDef : columns) {
  57                         TableViewerColumn column = new TableViewerColumn(this, SWT.NONE);
  58                         column.setLabelProvider(colDef.getLabelProvider());
  59                         TableColumn tcol = column.getColumn();
  60                         tcol.setResizable(true);
  61                         tcol.setText(colDef.getLabel());
  62                         tcol.setWidth(colDef.getMinWidth());
  63                 }
  64                 return table;
  65         }
  66
  67         public void setInput(Path dir, String filter) {
  68                 Object[] rows = FsUiUtils.getChildren(dir, filter, showHiddenItems, folderFirst, orderProperty, reverseOrder);
  69                 this.setInput(rows);
  70                 int length = rows == null ? 0 : rows.length;
  71                 this.setItemCount(length);
  72                 this.refresh();
  73         }
  74
  75         /** Directly displays bookmarks **/
  76         public void setPathsInput(Path... paths) {
  77                 this.setInput((Object[]) paths);
  78                 this.setItemCount(paths.length);
  79                 this.refresh();
  80         }
  81
  82         private class MyLazyCP implements ILazyContentProvider {
  83                 private static final long serialVersionUID = 9096550041395433128L;
  84                 private Object[] elements;
  85
  86                 public void dispose() {
  87                 }
  88
  89                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  90                         // IMPORTANT: don't forget this: an exception will be thrown if
  91                         // a selected object is not part of the results anymore.
  92                         viewer.setSelection(null);
  93                         this.elements = (Object[]) newInput;
  94                 }
  95
  96                 public void updateElement(int index) {
  97                         FsTableViewer.this.replace(elements[index], index);
  98                 }
  99         }
 100 }