/*
* 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.setup;
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.user.client.ui.Button;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.widgetideas.client.ResizableWidgetCollection;
/**
* An option.
*/
public class ResizeCheckingOption extends AbstractOption {
private static final String DESC_RESIZE_CHECKING = "Enable resize checking "
+ "to start a Timer that compares the offset width and height of the "
+ "scroll table at periodic intervals. If the width or height change "
+ "for an undetectable reason (such as changing the width style "
+ "attribute of the widget), the ResizableWidgetCollection class will "
+ "fire the onResize() method in the ScrollTable, which implements "
+ "ResizableWidget.";
/**
* The label that displays the status.
*/
private Label statusLabel = null;
@Override
protected String getDescription() {
return DESC_RESIZE_CHECKING;
}
@Override
protected Widget onInitialize() {
CustomForm form = new CustomForm();
// Add the current status
statusLabel = new Label();
form.addLabeledWidget("Current Status:", statusLabel);
refreshStatus();
// Add button to change status
{
Button button = new Button("Toggle Resize Checking", new ClickHandler() {
public void onClick(ClickEvent event) {
ResizableWidgetCollection.get().setResizeCheckingEnabled(
!ResizableWidgetCollection.get().isResizeCheckingEnabled());
refreshStatus();
}
});
form.addButton(button);
}
// Add a button to resize the table now
{
Button button = new Button("Redraw Now", new ClickHandler() {
public void onClick(ClickEvent event) {
ScrollTableDemo.get().getScrollTable().redraw();
}
});
form.addButton(button);
}
return form;
}
/**
* Refresh the status.
*/
private void refreshStatus() {
if (ResizableWidgetCollection.get().isResizeCheckingEnabled()) {
statusLabel.setText("enabled");
} else {
statusLabel.setText("disabled");
}
}
}