Examples with TransAction org.pentaho.di.core.undo.TransAction used on opensource projects

Example 1 with TransAction

use of org.pentaho.di.core.undo.TransAction in project pentaho-kettle by pentaho.

the class AbstractMeta method previousUndo.

// get previous undo, change position
/*
   * (non-Javadoc)
   *
   * @see org.pentaho.di.core.gui.UndoInterface#previousUndo()
   */
@Override
public TransAction previousUndo() {
    if (undo.isEmpty() || undo_position < 0) {
        // No undo left!
        return null;
    }
    TransAction retval = undo.get(undo_position);
    undo_position--;
    return retval;
}

Example 2 with TransAction

use of org.pentaho.di.core.undo.TransAction in project pentaho-kettle by pentaho.

the class AbstractMeta method nextUndo.

/*
   * (non-Javadoc)
   *
   * @see org.pentaho.di.core.gui.UndoInterface#nextUndo()
   */
@Override
public TransAction nextUndo() {
    int size = undo.size();
    if (size == 0 || undo_position >= size - 1) {
        // no redo left...
        return null;
    }
    undo_position++;
    TransAction retval = undo.get(undo_position);
    return retval;
}

Example 3 with TransAction

use of org.pentaho.di.core.undo.TransAction in project pentaho-kettle by pentaho.

the class AbstractMetaTest method testAddRemoveViewUndo.

@Test
public void testAddRemoveViewUndo() throws Exception {
    // addUndo() right now will fail with an NPE
    assertEquals(0, meta.getUndoSize());
    meta.clearUndo();
    assertEquals(0, meta.getUndoSize());
    assertEquals(0, meta.getMaxUndo());
    meta.setMaxUndo(3);
    assertEquals(3, meta.getMaxUndo());
    // viewThisUndo() and viewPreviousUndo() have the same logic
    assertNull(meta.viewThisUndo());
    assertNull(meta.viewPreviousUndo());
    assertNull(meta.viewNextUndo());
    assertNull(meta.previousUndo());
    assertNull(meta.nextUndo());
    StepMeta fromMeta = mock(StepMeta.class);
    StepMeta toMeta = mock(StepMeta.class);
    Object[] from = new Object[] { fromMeta };
    Object[] to = new Object[] { toMeta };
    int[] pos = new int[0];
    Point[] prev = new Point[0];
    Point[] curr = new Point[0];
    meta.addUndo(from, to, pos, prev, curr, AbstractMeta.TYPE_UNDO_NEW, false);
    assertNotNull(meta.viewThisUndo());
    assertNotNull(meta.viewPreviousUndo());
    assertNull(meta.viewNextUndo());
    meta.addUndo(from, to, pos, prev, curr, AbstractMeta.TYPE_UNDO_CHANGE, false);
    assertNotNull(meta.viewThisUndo());
    assertNotNull(meta.viewPreviousUndo());
    assertNull(meta.viewNextUndo());
    TransAction action = meta.previousUndo();
    assertNotNull(action);
    assertEquals(AbstractMeta.TYPE_UNDO_CHANGE, action.getType());
    assertNotNull(meta.viewThisUndo());
    assertNotNull(meta.viewPreviousUndo());
    assertNotNull(meta.viewNextUndo());
    meta.addUndo(from, to, pos, prev, curr, AbstractMeta.TYPE_UNDO_DELETE, false);
    meta.addUndo(from, to, pos, prev, curr, AbstractMeta.TYPE_UNDO_POSITION, false);
    assertNotNull(meta.previousUndo());
    assertNotNull(meta.nextUndo());
    meta.setMaxUndo(1);
    assertEquals(1, meta.getUndoSize());
    meta.addUndo(from, to, pos, prev, curr, AbstractMeta.TYPE_UNDO_NEW, false);
}

Example 4 with TransAction

use of org.pentaho.di.core.undo.TransAction in project pentaho-kettle by pentaho.

the class TableView method previousUndo.

// get previous undo, change position
private TransAction previousUndo() {
    if (undo.isEmpty() || undoPosition < 0) {
        // No undo left!
        return null;
    }
    TransAction retval = undo.get(undoPosition);
    undoPosition--;
    return retval;
}

Example 5 with TransAction

use of org.pentaho.di.core.undo.TransAction in project pentaho-kettle by pentaho.

the class TableView method delSelected.

private void delSelected() {
    if (nrNonEmpty() == 0) {
        return;
    }
    // Which items do we delete?
    int[] items = table.getSelectionIndices();
    if (items.length == 0) {
        return;
    }
    // Save undo information
    String[][] before = new String[items.length][];
    for (int i = 0; i < items.length; i++) {
        TableItem ti = table.getItem(items[i]);
        before[i] = getItemText(ti);
    }
    TransAction ta = new TransAction();
    ta.setDelete(before, items);
    addUndo(ta);
    TableItem row = activeTableItem;
    if (row == null) {
        return;
    }
    int rowbefore = table.indexOf(row);
    // Delete selected items.
    table.remove(items);
    if (table.getItemCount() == 0) {
        TableItem item = new TableItem(table, SWT.NONE);
        // Save undo infomation!
        String[] stritem = getItemText(item);
        ta = new TransAction();
        ta.setNew(new String[][] { stritem }, new int[] { 0 });
        addUndo(ta);
    }
    // If the last row is gone, put the selection back on last-1!
    if (rowbefore >= table.getItemCount()) {
        rowbefore = table.getItemCount() - 1;
    }
    // After the delete, we put the cursor on the same row as before (if we can)
    if (rowbefore < table.getItemCount() && table.getItemCount() > 0) {
        setPosition(rowbefore, 1);
        table.setSelection(rowbefore);
        activeTableRow = rowbefore;
    }
    tableViewModifyListener.delete(items);
    setRowNums();
    setModified();
}