/*******************************************************************************
 * Copyright (c) 2012, 2015 Original authors 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:
 *     Original authors and others - initial API and implementation
 *     Dirk Fauth <dirk.fauth@googlemail.com> - Bug 459029
 ******************************************************************************/
package org.eclipse.nebula.widgets.nattable.extension.builder.configuration;

import org.eclipse.nebula.widgets.nattable.config.CellConfigAttributes;
import org.eclipse.nebula.widgets.nattable.config.IConfigRegistry;
import org.eclipse.nebula.widgets.nattable.extension.builder.model.TableModel;
import org.eclipse.nebula.widgets.nattable.grid.GridRegion;
import org.eclipse.nebula.widgets.nattable.group.ColumnGroupModel;
import org.eclipse.nebula.widgets.nattable.group.action.ColumnGroupExpandCollapseAction;
import org.eclipse.nebula.widgets.nattable.group.action.ColumnGroupHeaderReorderDragMode;
import org.eclipse.nebula.widgets.nattable.group.action.ColumnHeaderReorderDragMode;
import org.eclipse.nebula.widgets.nattable.group.action.CreateColumnGroupAction;
import org.eclipse.nebula.widgets.nattable.group.action.UngroupColumnsAction;
import org.eclipse.nebula.widgets.nattable.group.config.DefaultColumnGroupHeaderLayerConfiguration;
import org.eclipse.nebula.widgets.nattable.group.painter.ColumnGroupHeaderTextPainter;
import org.eclipse.nebula.widgets.nattable.painter.cell.BackgroundImagePainter;
import org.eclipse.nebula.widgets.nattable.painter.cell.ICellPainter;
import org.eclipse.nebula.widgets.nattable.painter.cell.TextPainter;
import org.eclipse.nebula.widgets.nattable.style.DisplayMode;
import org.eclipse.nebula.widgets.nattable.ui.action.AggregateDragMode;
import org.eclipse.nebula.widgets.nattable.ui.action.CellDragMode;
import org.eclipse.nebula.widgets.nattable.ui.binding.UiBindingRegistry;
import org.eclipse.nebula.widgets.nattable.ui.matcher.KeyEventMatcher;
import org.eclipse.nebula.widgets.nattable.ui.matcher.MouseEventMatcher;
import org.eclipse.nebula.widgets.nattable.util.GUIHelper;
import org.eclipse.nebula.widgets.nattable.util.ObjectUtils;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;

public class ColumnGroupConfiguration extends DefaultColumnGroupHeaderLayerConfiguration {

    private final ColumnGroupModel columnGroupModel;
    private final TableModel tableModel;

    public ColumnGroupConfiguration(ColumnGroupModel columnGroupModel, TableModel tableModel) {
        super(columnGroupModel);
        this.columnGroupModel = columnGroupModel;
        this.tableModel = tableModel;
    }

    @Override
    public void configureUiBindings(UiBindingRegistry uiBindingRegistry) {
        // Column Group Header is a part of the Group Header.
        // Register the 'column group header matcher' first so that it gets
        // picked up before the more general 'column header matcher'.
        uiBindingRegistry.registerMouseDragMode(
                MouseEventMatcher.columnGroupHeaderLeftClick(SWT.NONE),
                new AggregateDragMode(new CellDragMode(), new ColumnGroupHeaderReorderDragMode(this.columnGroupModel)));

        uiBindingRegistry.registerMouseDragMode(
                MouseEventMatcher.columnHeaderLeftClick(SWT.NONE),
                new ColumnHeaderReorderDragMode(this.columnGroupModel));

        uiBindingRegistry.registerFirstSingleClickBinding(
                MouseEventMatcher.columnGroupHeaderLeftClick(SWT.NONE),
                new ColumnGroupExpandCollapseAction());

        uiBindingRegistry.registerKeyBinding(
                new KeyEventMatcher(SWT.MOD1, 'g'),
                new CreateColumnGroupAction());
        uiBindingRegistry.registerKeyBinding(
                new KeyEventMatcher(SWT.MOD1, 'u'),
                new UngroupColumnsAction());
    }

    @Override
    public void configureRegistry(IConfigRegistry configRegistry) {
        Image bgImage = this.tableModel.tableStyle.columnHeaderBgImage;

        if (ObjectUtils.isNotNull(bgImage)) {
            TextPainter txtPainter = new TextPainter(false, false);
            ICellPainter cellPainter = new BackgroundImagePainter(txtPainter, bgImage, GUIHelper.getColor(192, 192, 192));

            configRegistry.registerConfigAttribute(
                    CellConfigAttributes.CELL_PAINTER,
                    new ColumnGroupHeaderTextPainter(cellPainter),
                    DisplayMode.NORMAL,
                    GridRegion.COLUMN_GROUP_HEADER);
        } else {
            super.configureRegistry(configRegistry);
        }

    }

}