/*******************************************************************************
* Copyright (c) 2004, 2008 John Krasnay and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* John Krasnay - initial API and implementation
*******************************************************************************/
package net.sf.vex.action;
import java.util.ArrayList;
import java.util.List;
import net.sf.vex.core.IntRange;
import net.sf.vex.widget.IVexWidget;
/**
* Moves the current table column to the right.
*/
public class MoveColumnRightAction extends AbstractVexAction {
public void run(final IVexWidget vexWidget) {
final ActionUtils.RowColumnInfo rcInfo = ActionUtils.getRowColumnInfo(vexWidget);
if (rcInfo == null || rcInfo.cellIndex >= rcInfo.maxColumnCount - 1) {
return;
}
vexWidget.doWork(true, new Runnable() {
public void run() {
// Cells to the right of the current column
final List sourceCells = new ArrayList();
// Cells in the current column
final List destCells = new ArrayList();
ActionUtils.iterateTableCells(vexWidget, new TableCellCallback() {
Object thisCell = null;
public void startRow(Object row, int rowIndex) {
}
public void onCell(Object row, Object cell, int rowIndex, int cellIndex) {
if (cellIndex == rcInfo.cellIndex) {
this.thisCell = cell;
} else if (cellIndex == rcInfo.cellIndex + 1) {
sourceCells.add(cell);
destCells.add(this.thisCell);
}
}
public void endRow(Object row, int rowIndex) {
}
});
// Iterate the deletions in reverse, so that we don't mess up
// offsets that are in anonymous cells, which are not stored
// as Positions.
//
// Also, to preserve the current caret position, we don't cut
// and paste the current column. Instead, we cut the column
// to the right of the current column and paste it on the left.
for (int i = sourceCells.size() - 1; i >= 0; i--) {
Object source = sourceCells.get(i);
final IntRange sourceRange = ActionUtils.getOuterRange(source);
Object dest = destCells.get(i);
vexWidget.moveTo(ActionUtils.getOuterRange(dest).getStart());
vexWidget.savePosition(new Runnable() {
public void run() {
vexWidget.moveTo(sourceRange.getStart());
vexWidget.moveTo(sourceRange.getEnd(), true);
vexWidget.cutSelection();
}
});
vexWidget.paste();
}
}
});
}
public boolean isEnabled(IVexWidget vexWidget) {
ActionUtils.RowColumnInfo rcInfo = ActionUtils.getRowColumnInfo(vexWidget);
return rcInfo != null && rcInfo.cellIndex < rcInfo.maxColumnCount - 1;
}
}