com.qualogy.qafe.mgwt.client.ui.component.QTable.java Source code

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Here is the source code for com.qualogy.qafe.mgwt.client.ui.component.QTable.java

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/**
 * Copyright 2008-2015 Qualogy Solutions B.V.
 *
 * 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 com.qualogy.qafe.mgwt.client.ui.component;

import java.util.HashMap;
import java.util.Map;

import com.google.gwt.user.client.ui.DockPanel;
import com.google.gwt.user.client.ui.DockPanel.DockLayoutConstant;
import com.google.gwt.user.client.ui.HasVerticalAlignment;
import com.google.gwt.user.client.ui.Widget;
import com.googlecode.mgwt.ui.client.widget.WidgetList;

public class QTable extends WidgetList {

    private Map<Integer, QLayoutBorder> rowContainers = new HashMap<Integer, QLayoutBorder>();
    private Map<Integer, Widget> rowWestRegions = new HashMap<Integer, Widget>();
    private Map<Integer, Widget> rowEastRegions = new HashMap<Integer, Widget>();

    private int numColumns;

    public QTable() {
        setRound(true);
    }

    public void setNumColumns(int numColumns) {
        this.numColumns = numColumns;
    }

    public void add(int row, int column, Widget widget) {
        QLayoutBorder container = rowContainers.get(row);
        if (container == null) {
            container = createContainer();
            rowContainers.put(row, container);

            QLayoutHorizontal westRegion = createRegion(container, DockPanel.WEST);
            rowWestRegions.put(row, westRegion);

            QLayoutHorizontal eastRegion = createRegion(container, DockPanel.EAST);
            rowEastRegions.put(row, eastRegion);

            add(container);
        }
        if ((column == 0) || (column < Math.round(numColumns / 2d))) {
            QLayoutHorizontal westRegion = (QLayoutHorizontal) rowWestRegions.get(row);
            westRegion.add(widget);
        } else {
            QLayoutHorizontal eastRegion = (QLayoutHorizontal) rowEastRegions.get(row);
            eastRegion.add(widget);
        }
    }

    private QLayoutBorder createContainer() {
        QLayoutBorder container = new QLayoutBorder();
        container.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
        return container;
    }

    private QLayoutHorizontal createRegion(QLayoutBorder container, DockLayoutConstant direction) {
        QLayoutHorizontal region = new QLayoutHorizontal();
        region.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
        region.setSpacing(2);
        container.add(region, direction);
        container.setCellWidth(region, "100%");
        return region;
    }

    @Override
    public void clear() {
        rowWestRegions.clear();
        rowEastRegions.clear();
        rowContainers.clear();
        super.clear();
    }
}