/*
* ARX: Powerful Data Anonymization
* Copyright 2012 - 2017 Fabian Prasser, Florian Kohlmayer and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.deidentifier.arx.gui.view.impl.common.datatable;
import org.eclipse.nebula.widgets.nattable.command.ILayerCommand;
import org.eclipse.nebula.widgets.nattable.command.StructuralRefreshCommand;
import org.eclipse.nebula.widgets.nattable.grid.command.ClientAreaResizeCommand;
import org.eclipse.nebula.widgets.nattable.layer.IUniqueIndexLayer;
import org.eclipse.nebula.widgets.nattable.selection.ScrollSelectionCommandHandler;
import org.eclipse.nebula.widgets.nattable.viewport.ViewportLayer;
import org.eclipse.nebula.widgets.nattable.viewport.command.RecalculateScrollBarsCommand;
import org.eclipse.nebula.widgets.nattable.viewport.command.RecalculateScrollBarsCommandHandler;
import org.eclipse.nebula.widgets.nattable.viewport.command.ViewportDragCommandHandler;
import org.eclipse.nebula.widgets.nattable.viewport.command.ViewportSelectColumnCommandHandler;
import org.eclipse.nebula.widgets.nattable.viewport.command.ViewportSelectRowCommandHandler;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Listener;
/**
*
*/
public class DataTableViewportLayer extends ViewportLayer{
/** TODO */
private DataTableContext context;
/**
*
*
* @param underlyingLayer
* @param context
*/
public DataTableViewportLayer(IUniqueIndexLayer underlyingLayer, DataTableContext context) {
super(underlyingLayer);
this.context = context;
}
@Override
public boolean doCommand(ILayerCommand command) {
if (context.getTable() != null && !context.getTable().isDisposed()) {
context.getTable().getHorizontalBar().getParent().setRedraw(false);
context.getTable().getVerticalBar().getParent().setRedraw(false);
}
boolean result = super.doCommand(command);
if (command instanceof ClientAreaResizeCommand) {
checkScrollBars();
} else if (command instanceof RecalculateScrollBarsCommand) {
checkScrollBars();
} else if (command instanceof StructuralRefreshCommand) {
checkScrollBars();
}
if (context.getTable() != null && !context.getTable().isDisposed()) {
context.getTable().getHorizontalBar().getParent().setRedraw(true);
context.getTable().getVerticalBar().getParent().setRedraw(true);
}
return result;
}
@Override
public void moveCellPositionIntoViewport(int scrollableColumnPosition, int scrollableRowPosition) {
if (!(context.isRowExpanded() && context.isColumnExpanded())) {
super.moveCellPositionIntoViewport(scrollableColumnPosition, scrollableRowPosition);
}
}
@Override
public void moveColumnPositionIntoViewport(int scrollableColumnPosition) {
if (!context.isColumnExpanded()) {
super.moveColumnPositionIntoViewport(scrollableColumnPosition);
}
}
@Override
public void moveRowPositionIntoViewport(int scrollableRowPosition) {
if (!context.isRowExpanded()) {
super.moveRowPositionIntoViewport(scrollableRowPosition);
}
}
/**
*
*/
private void checkScrollBars() {
if (context.getTable().isDisposed()) {
return;
}
Listener[] listeners = null;
if (context.getTable() != null && !context.getTable().isDisposed()) {
listeners = context.getTable().getListeners(SWT.Resize);
for (Listener listener : listeners) {
context.getTable().removeListener(SWT.Resize, listener);
}
}
if (context.isColumnExpanded()) {
context.getTable().getHorizontalBar().setVisible(true);
context.getTable().getHorizontalBar().setValues(0, 0, 1, 1, 1, 1);
context.getTable().getHorizontalBar().setEnabled(false);
}
if (context.isRowExpanded()) {
context.getTable().getVerticalBar().setVisible(true);
context.getTable().getVerticalBar().setValues(0, 0, 1, 1, 1, 1);
context.getTable().getVerticalBar().setEnabled(false);
}
if (context.getTable() != null && !context.getTable().isDisposed()) {
for (Listener listener : listeners) {
context.getTable().addListener(SWT.Resize, listener);
}
}
}
@Override
protected boolean isLastColumnCompletelyDisplayed() {
if (context.isColumnExpanded()) return true;
else return super.isLastColumnCompletelyDisplayed();
}
@Override
protected boolean isLastRowCompletelyDisplayed() {
if (context.isRowExpanded()) return true;
else return super.isLastRowCompletelyDisplayed();
}
@Override
protected void registerCommandHandlers() {
registerCommandHandler(new RecalculateScrollBarsCommandHandler(this));
registerCommandHandler(new ScrollSelectionCommandHandler(this));
registerCommandHandler(new ViewportSelectColumnCommandHandler(this));
registerCommandHandler(new ViewportSelectRowCommandHandler(this));
registerCommandHandler(new ViewportDragCommandHandler(this));
}
}