ApplicationView.java

/*
 *  Copyright 2008 University of Prince Edward Island
 *
 *  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 ca.upei.ic.timetable.client;

import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.DockPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * The Main View for the Application
 * 
 * This is the main view of the application. This view organizes all other
 * views of various controllers. All other views should be positioned and
 * resized by this view.
 * 
 * @author felix
 *
 */
public class ApplicationView implements View {
	
	private ApplicationController app_;
	private static String[] headerStrings = {
		"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
	};
	
	private HorizontalPanel headerPanel_;
	
	public ApplicationView(ApplicationController app) {
		app_ = app;
		
		// hide the root panel first
		hide();

		// create the application view elements
		// we are using a horizontal split panel to host the left side (course view)
		// and the right side (calendar view)
		DockPanel panel = GWT.create(DockPanel.class);
		panel.setSize("980px", "580px");

		final View findCourseView = app_.getFindCourseController().getView();
		
		// find course button
		final Button findCourseButton = GWT.create(Button.class);
		findCourseButton.setText("Find Course...");
		findCourseButton.setPixelSize(250, 28);
		findCourseButton.addClickListener(new ClickListener() {

			public void onClick(Widget sender) {
				findCourseView.show();
			}
			
		});
		// message view
		final View messageView = app_.getMessageController().getView();
		
		// course view
		final View courseView = app_.getCourseController().getView();
		courseView.getWidget().setWidth("340px");
		
		// calendar view
		final View calendarView = app_.getCourseCalendarController().getView();
		
		// top panel
		HorizontalPanel topPanel = GWT.create(HorizontalPanel.class);
		topPanel.add(findCourseButton);
		headerPanel_ = GWT.create(HorizontalPanel.class);
		SimplePanel topleft = PanelUtils.simplePanel(new HTML(""), 61, 28);
		headerPanel_.add(topleft);
		
		// add headers
		for (int i=1; i<6; i++) {
			SimplePanel header = GWT.create(SimplePanel.class);
			header.addStyleName("gridHeaderCell");
			header.setPixelSize(128, 28);
			header.add(new HTML(headerStrings[i]));
			headerPanel_.add(header);
		}
		
		topPanel.add(headerPanel_);
		
		// add elements to the dock panel
		// to north (top bar)
		panel.add(PanelUtils.horizontalPanel(findCourseButton,
				headerPanel_
				)
				, DockPanel.NORTH);
		// to west (left side bar)
		panel.add(PanelUtils.verticalPanel(
				PanelUtils.decoratorPanel(PanelUtils.scrollPanel(courseView.getWidget(), 240, 555)),
				PanelUtils.horizontalPanel(
						ButtonUtils.button("Clear", 125, 25, new ClickListener() {
							public void onClick(Widget sender) {
								app_.getCourseController().clear();
							}
						}, null),
						ButtonUtils.button("Print...", 125, 25, new ClickListener() {
							public void onClick(Widget sender) {
								Element wrapper = DOM.createDiv();
								Element header = (Element) headerPanel_.getElement().cloneNode(true);
								wrapper.appendChild(header);
								CalendarPanel calendar = (CalendarPanel) app_.getCourseCalendarController().getView().getWidget();
								int height = calendar.getRealHeight();
								Element calendarElement = (Element) calendar.getElement().cloneNode(true);
								DOM.setStyleAttribute(calendarElement, "page-break-inside", "avoid");
								DOM.setStyleAttribute(calendarElement, "height", (height+50)+"px");
								wrapper.appendChild(calendarElement);
								app_.print("Main.css", wrapper.getInnerHTML());
							}
						}, null)
						)
				),
				DockPanel.WEST);
		// to center (content)
		panel.add(calendarView.getWidget(),
				DockPanel.CENTER);
		
		// to footer (copyright)
		panel.add(new HTML("© 2008 University of Prince Edward Island. This is an <a href=\"http://github.com/upei/\">open-source project</a> licensed under Apache License 2.0."),
				DockPanel.SOUTH);
		
		// add the horizontal panel
		RootPanel.get().add(panel);
	}

	public ViewController getController() {
		return app_;
	}

	public void hide() {
		RootPanel.get().setVisible(false);
	}

	public void show() {
		RootPanel.get().setVisible(true);
	}
	
	public void addSubView(View subView) {
		RootPanel.get().add(subView.getWidget());
	}
	
	public Widget getWidget() {
		return RootPanel.get();
	}

}