io.pelle.mango.client.gwt.modules.dictionary.BaseCellTable.java Source code

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Here is the source code for io.pelle.mango.client.gwt.modules.dictionary.BaseCellTable.java

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/**
 * Copyright (c) 2013 Christian Pelster.
 * 
 * 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:
 *     Christian Pelster - initial API and implementation
 */
package io.pelle.mango.client.gwt.modules.dictionary;

import io.pelle.mango.client.base.modules.dictionary.container.IBaseTable;
import io.pelle.mango.client.base.modules.dictionary.model.controls.IBaseControlModel;
import io.pelle.mango.client.base.vo.IBaseVO;
import io.pelle.mango.client.gwt.modules.dictionary.container.BaseTableRowKeyProvider;
import io.pelle.mango.client.gwt.utils.MangoRowStyles;
import io.pelle.mango.client.web.modules.dictionary.container.BaseTableElement;
import io.pelle.mango.client.web.modules.dictionary.controls.BaseDictionaryControl;
import io.pelle.mango.client.web.modules.dictionary.layout.WidthCalculationStrategy;
import io.pelle.mango.client.web.util.DictionaryModelUtil;

import java.util.List;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.DoubleClickEvent;
import com.google.gwt.event.dom.client.DoubleClickHandler;
import com.google.gwt.user.cellview.client.CellTable;
import com.google.gwt.user.cellview.client.Column;
import com.google.gwt.user.cellview.client.TextHeader;
import com.google.gwt.view.client.ListDataProvider;
import com.google.gwt.view.client.SelectionChangeEvent;
import com.google.gwt.view.client.SelectionChangeEvent.Handler;
import com.google.gwt.view.client.SingleSelectionModel;

public abstract class BaseCellTable<VOType extends IBaseVO> extends CellTable<IBaseTable.ITableRow<VOType>>
        implements IMangoCellTable<VOType> {

    private ListDataProvider<IBaseTable.ITableRow<VOType>> dataProvider = new ListDataProvider<IBaseTable.ITableRow<VOType>>();

    private SingleSelectionModel<IBaseTable.ITableRow<VOType>> selectionModel;

    private List<BaseDictionaryControl<? extends IBaseControlModel, ?>> baseControls;

    public static final String DEFAULT_TABLE_HEIGHT = "15em";

    public static final String DEFAULT_TABLE_WIDTH = "5em";

    public static final int DEFAULT_MAX_RESULTS = 15;

    public static final int DEFAULT_PAGESIZE = 15;

    private BaseTableElement<VOType, ?> baseTableElement;

    public BaseCellTable(BaseTableElement<VOType, ?> baseTableElement,
            BaseTableRowKeyProvider<VOType> keyProvider) {
        super(DEFAULT_PAGESIZE, (BaseCellTableResources) GWT.create(BaseCellTableResources.class), keyProvider);

        selectionModel = new SingleSelectionModel<IBaseTable.ITableRow<VOType>>(keyProvider);
        dataProvider.addDataDisplay(this);
        this.baseTableElement = baseTableElement;
        this.baseControls = baseTableElement.getControls();

        setRowStyles(MangoRowStyles.<VOType>getDefault());

    }

    protected void createModelColumns() {

        for (BaseDictionaryControl<? extends IBaseControlModel, ?> baseControl : baseControls) {

            TextHeader textHeader = new TextHeader(DictionaryModelUtil.getColumnLabel(baseControl.getModel()));
            Column<IBaseTable.ITableRow<VOType>, ?> column = getColumn(baseControl);
            setColumnWidth(column,
                    WidthCalculationStrategy.getInstance().getControlColumnWidth(baseControl.getModel()), Unit.PX);

            addColumn(column, textHeader);
        }

        setSelectionModel(selectionModel);
        addDomHandler(new DoubleClickHandler() {
            /** {@inheritDoc} */
            @Override
            public void onDoubleClick(DoubleClickEvent event) {
                baseTableElement.activateSelection();
            }
        }, DoubleClickEvent.getType());

        selectionModel.addSelectionChangeHandler(new Handler() {

            @Override
            public void onSelectionChange(SelectionChangeEvent event) {
                baseTableElement.setSelection(selectionModel.getSelectedObject());
            }
        });
    }

    public void setRows(List<IBaseTable.ITableRow<VOType>> rows) {
        dataProvider.setList(rows);
    }

    protected IBaseTable.ITableRow<VOType> getSelection() {
        return selectionModel.getSelectedObject();
    }

    protected abstract Column<IBaseTable.ITableRow<VOType>, ?> getColumn(
            BaseDictionaryControl<? extends IBaseControlModel, ?> baseControl);

}