com.google.gwt.gen2.demo.scrolltable.client.option.header.ColSpanOption.java Source code

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Here is the source code for com.google.gwt.gen2.demo.scrolltable.client.option.header.ColSpanOption.java

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/*
 * Copyright 2008 Google Inc.
 * 
 * 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.google.gwt.gen2.demo.scrolltable.client.option.header;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.gen2.demo.scrolltable.client.ScrollTableDemo;
import com.google.gwt.gen2.demo.scrolltable.client.option.AbstractOption;
import com.google.gwt.gen2.demo.scrolltable.client.option.CustomForm;
import com.google.gwt.gen2.table.override.client.FlexTable;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;

/**
 * An option.
 */
public class ColSpanOption extends AbstractOption {
    @Override
    protected String getDescription() {
        return "Set the colspan of a cell";
    }

    @Override
    protected Widget onInitialize() {
        CustomForm form = new CustomForm();

        // Row selection
        final TextBox rowBox = new TextBox();
        rowBox.setText("1");
        rowBox.setWidth("50px");
        form.addLabeledWidget("Row Index:", rowBox);

        // Cell selection
        final TextBox cellBox = new TextBox();
        cellBox.setText("0");
        cellBox.setWidth("50px");
        form.addLabeledWidget("Cell Index:", cellBox);

        // Colspan selection
        final TextBox colSpanBox = new TextBox();
        colSpanBox.setText("1");
        colSpanBox.setWidth("50px");
        form.addLabeledWidget("ColSpan:", colSpanBox);

        // Rowspan selection
        final TextBox rowSpanBox = new TextBox();
        rowSpanBox.setText("1");
        rowSpanBox.setWidth("50px");
        form.addLabeledWidget("RowSpan:", rowSpanBox);

        // Add button to set the spans
        {
            Button button = new Button("Set row/colspan", new ClickHandler() {
                public void onClick(ClickEvent event) {
                    try {
                        int row = Integer.parseInt(rowBox.getText());
                        int cell = Integer.parseInt(cellBox.getText());
                        int rowSpan = Integer.parseInt(rowSpanBox.getText());
                        int colSpan = Integer.parseInt(colSpanBox.getText());
                        FlexTable headerTable = ScrollTableDemo.get().getHeaderTable();
                        headerTable.getFlexCellFormatter().setRowSpan(row, cell, rowSpan);
                        headerTable.getFlexCellFormatter().setColSpan(row, cell, colSpan);
                        ScrollTableDemo.get().getScrollTable().redraw();
                    } catch (NumberFormatException e) {
                        Window.alert("Please enter valid integers for the row and column.");
                    } catch (IndexOutOfBoundsException e) {
                        Window.alert("The row or column index you entered is out of bounds.");
                    }
                }
            });
            form.addButton(button);
        }

        return form;
    }
}