com.tasktop.c2c.server.common.web.client.widgets.DynamicFormPanel.java Source code

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Here is the source code for com.tasktop.c2c.server.common.web.client.widgets.DynamicFormPanel.java

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/*******************************************************************************
 * Copyright (c) 2010, 2012 Tasktop Technologies
 * Copyright (c) 2010, 2011 SpringSource, a division of VMware
 * 
 * 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:
 *     Tasktop Technologies - initial API and implementation
 ******************************************************************************/
package com.tasktop.c2c.server.common.web.client.widgets;

import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;

public class DynamicFormPanel extends Composite {

    private FlexTable flexTable;

    private int row;
    private int column = 0;

    public DynamicFormPanel() {
        flexTable = new FlexTable();
        flexTable.addStyleName("taskDetailLayout");
        initWidget(flexTable);
    }

    /**
     * Add a label and a widget, side by side.
     * 
     * @param label
     *            the label for the field
     * @param value
     *            the widget
     */
    public void add(String label, Widget value) {
        add(new Label(label), value);
    }

    /**
     * Add a label and a widget, side by side.
     * 
     * @param label
     *            the label for the field
     * @param value
     *            the widget
     */
    public void add(Widget label, Widget value) {
        add(label, value, 1, false);
    }

    /**
     * Add the given label widget and value widget, spanning the given number of logical columns. Logical columns are
     * defined by both label and value, thus a label and value together occupy a single logical column.
     * 
     * @param label
     * @param value
     * @param logicalColspan
     */
    public void add(Widget label, Widget value, int logicalColspan, boolean singleElement) {
        if (singleElement) {
            FlowPanel fp = new FlowPanel();
            fp.add(label);
            fp.add(value);
            flexTable.setWidget(row, column, fp);
            flexTable.getFlexCellFormatter().setStyleName(row, column, "product-item left");
        } else {
            flexTable.setWidget(row, column, label);
            flexTable.getFlexCellFormatter().setStyleName(row, column, "taskFieldLabel");
            ++column;
            flexTable.setWidget(row, column, value);
            flexTable.getFlexCellFormatter().setStyleName(row, column, "taskFieldValue");
            if (logicalColspan > 1) {
                int columnIncrement = (logicalColspan - 1) * 2;
                flexTable.getFlexCellFormatter().setColSpan(row, column, 1 + columnIncrement);
                column += columnIncrement;
            }
        }
        ++column;
    }

    public void add(Widget label, Widget value, boolean singleElement) {
        add(label, value, 1, singleElement);
    }

    /**
     * Add a label and String value as a Label, side by side.
     * 
     * @param label
     *            the label
     * @param value
     *            text for a Label widget
     */
    public void add(String label, String value) {
        add(label, new Label(value));
    }

    /**
     * Add a Widget spanning several cells.
     * 
     * @param colspan
     *            the number of cells
     * @param value
     *            the widget
     */
    public void add(int colspan, Widget value) {
        flexTable.setWidget(row, column, value);
        flexTable.getFlexCellFormatter().setColSpan(row, column, colspan);
        column += colspan;
    }

    /**
     * Add a Label spanning several cells.
     * 
     * @param colspan
     *            the number of cells
     * @param value
     *            the widget
     */
    public void addLabel(int colspan, Widget label) {
        flexTable.setWidget(row, column, label);
        flexTable.getFlexCellFormatter().setStyleName(row, column, "taskFieldLabel");
        flexTable.getFlexCellFormatter().setColSpan(row, column, colspan);
        column += colspan;
    }

    /**
     * Move to the new row
     */
    public void newLine() {
        if (column > 0) {
            column = 0;
            ++row;
        }
    }
}