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.CellLabelProvider;
   8 import org.eclipse.jface.viewers.ILazyContentProvider;
   9 import org.eclipse.jface.viewers.TableViewer;
  10 import org.eclipse.jface.viewers.TableViewerColumn;
  11 import org.eclipse.jface.viewers.Viewer;
  12 import org.eclipse.swt.SWT;
  13 import org.eclipse.swt.layout.GridData;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.Table;
  16 import org.eclipse.swt.widgets.TableColumn;
  17
  18 /**
  19  * Canonical implementation of a JFace table viewer to display the content of a
  20  * file folder
  21  */
  22 public class FsTableViewer extends TableViewer {
  23         private static final long serialVersionUID = -5632407542678477234L;
  24
  25         private boolean showHiddenItems = false;
  26         private boolean folderFirst = true;
  27         private boolean reverseOrder = false;
  28         private String orderProperty = FsUiConstants.PROPERTY_NAME;
  29
  30         public FsTableViewer(Composite parent, int style) {
  31                 super(parent, style | SWT.VIRTUAL);
  32         }
  33
  34         public Table configureDefaultSingleColumnTable(int tableWidthHint) {
  35
  36                 return configureDefaultSingleColumnTable(tableWidthHint, new FileIconNameLabelProvider());
  37         }
  38
  39         public Table configureDefaultSingleColumnTable(int tableWidthHint, CellLabelProvider labelProvider) {
  40                 Table table = this.getTable();
  41                 table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
  42                 table.setLinesVisible(false);
  43                 table.setHeaderVisible(false);
  44                 // CmsUtils.markup(table);
  45                 // CmsUtils.style(table, MaintenanceStyles.BROWSER_COLUMN);
  46
  47                 TableViewerColumn column = new TableViewerColumn(this, SWT.NONE);
  48                 TableColumn tcol = column.getColumn();
  49                 tcol.setWidth(tableWidthHint);
  50                 column.setLabelProvider(labelProvider);
  51                 this.setContentProvider(new MyLazyCP());
  52                 return table;
  53         }
  54
  55         public Table configureDefaultTable(List<ColumnDefinition> columns) {
  56                 this.setContentProvider(new MyLazyCP());
  57                 Table table = this.getTable();
  58                 table.setLinesVisible(true);
  59                 table.setHeaderVisible(true);
  60                 // CmsUtils.markup(table);
  61                 // CmsUtils.style(table, MaintenanceStyles.BROWSER_COLUMN);
  62                 for (ColumnDefinition colDef : columns) {
  63                         TableViewerColumn column = new TableViewerColumn(this, SWT.NONE);
  64                         column.setLabelProvider(colDef.getLabelProvider());
  65                         TableColumn tcol = column.getColumn();
  66                         tcol.setResizable(true);
  67                         tcol.setText(colDef.getLabel());
  68                         tcol.setWidth(colDef.getMinWidth());
  69                 }
  70                 return table;
  71         }
  72
  73         public void setInput(Path dir, String filter) {
  74                 Object[] rows = FsUiUtils.getChildren(dir, filter, showHiddenItems, folderFirst, orderProperty, reverseOrder);
  75                 this.setInput(rows);
  76                 int length = rows == null ? 0 : rows.length;
  77                 this.setItemCount(length);
  78                 this.refresh();
  79         }
  80
  81         /** Directly displays bookmarks **/
  82         public void setPathsInput(Path... paths) {
  83                 this.setInput((Object[]) paths);
  84                 this.setItemCount(paths.length);
  85                 this.refresh();
  86         }
  87
  88         private class MyLazyCP implements ILazyContentProvider {
  89                 private static final long serialVersionUID = 9096550041395433128L;
  90                 private Object[] elements;
  91
  92                 public void dispose() {
  93                 }
  94
  95                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  96                         // IMPORTANT: don't forget this: an exception will be thrown if
  97                         // a selected object is not part of the results anymore.
  98                         viewer.setSelection(null);
  99                         this.elements = (Object[]) newInput;
 100                 }
 101
 102                 public void updateElement(int index) {
 103                         FsTableViewer.this.replace(elements[index], index);
 104                 }
 105         }
 106 }