Initial commit from SVN.

Foundation TCV SWT Server/src/com/foundation/tcv/swt/server/PanelViewer.java

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+/*
+ * Copyright (c) 2005,2009 Declarative Engineering LLC.
+ * All rights reserved.  This program and the accompanying materials
+ * are made available under the terms of the Declarative Engineering LLC
+ * verson 1 which accompanies this distribution, and is available at
+ * http://declarativeengineering.com/legal/DE_Developer_License_v1.txt
+ */
+package com.foundation.tcv.swt.server;
+
+import com.foundation.controller.RemoteViewController;
+import com.foundation.tcv.swt.IPanelViewer;
+import com.foundation.view.ResourceAssociation;
+import com.foundation.view.SingleAssociationContainer;
+import com.foundation.view.SingleResourceAssociation;
+
+public class PanelViewer extends Container implements IPanelViewer {
+	/** The association that provides a view controller whose view will be displayed in this panel. */
+	private SingleResourceAssociation controllerAssociation = new SingleResourceAssociation(this, this, getViewContext(), ResourceAssociation.TYPE_OBJECT, false, null);
+	/** The view controller whose view is currently displayed. */
+	private RemoteViewController viewController = null;
+	/** Whether the panel viewer should allow the focus to change when the viewed contents change. */
+	private boolean changeFocus = true;
+/**
+ * PanelViewer constructor.
+ * @param parent A composite control which will be the parent of the new instance (cannot be null).
+ * @param name The unique component name.
+ * @param style The style of control to construct.
+ * @see #STYLE_ARROW
+ * @see #STYLE_CHECK
+ * @see #STYLE_PUSH
+ * @see #STYLE_RADIO
+ * @see #STYLE_TOGGLE
+ * @see #STYLE_FLAT
+ * @see #STYLE_LEFT
+ * @see #STYLE_RIGHT
+ * @see #STYLE_CENTER
+ * @see #STYLE_UP
+ * @see #STYLE_DOWN
+ */
+public PanelViewer(Container parent, String name, int style) {
+	super(parent, name, style);
+	
+	sendMessage(MESSAGE_INITIALIZE, null, null, parent.getNumber(), style);
+}//PanelViewer()//
+/**
+ * Sets the association container used to access the controller.
+ * @param container The controller association metadata.
+ */
+public void setControllerAssociation(SingleAssociationContainer container) {
+	controllerAssociation.setAssociations(container);
+}//setControllerAssociation()//
+/**
+ * Sets whether the focus should be allowed to change to the viewer's component when the contents of the viewer changes.
+ * @param changeFocus Whether focus changes should be allowed when changing the viewer contents.
+ */
+public void setChangeFocus(boolean changeFocus) {
+	if(this.changeFocus != changeFocus) {
+		this.changeFocus = changeFocus;
+		sendMessage(MESSAGE_SET_CHANGE_FOCUS, changeFocus ? Boolean.TRUE : Boolean.FALSE);
+	}//if//
+}//setChangeFocus()//
+/* (non-Javadoc)
+ * @see com.foundation.tcv.swt.server.Container#internalViewInitialize()
+ */
+protected void internalViewInitialize() {
+	super.internalViewInitialize();
+	
+	controllerAssociation.initialize();
+}//internalViewInitialize()//
+/* (non-Javadoc)
+ * @see com.foundation.tcv.swt.server.Container#internalViewRefresh()
+ */
+protected void internalViewRefresh() {
+	super.internalViewRefresh();
+	
+	internalViewRefreshController();
+}//internalViewRefresh()//
+/* (non-Javadoc)
+ * @see com.foundation.tcv.swt.server.Container#internalViewRelease()
+ */
+protected void internalViewRelease() {
+	super.internalViewRelease();
+	
+	controllerAssociation.release();
+}//internalViewRelease()//
+/**
+ * Refreshes the controller association.
+ */
+protected void internalViewRefreshController() {
+	if(controllerAssociation.refresh()) {
+		Object value = controllerAssociation.getValue();
+
+		addMessageHold();
+		
+		try {
+			sendMessage(MESSAGE_BEGIN_CHANGE_CONTENTS, null);
+			
+			//Close the previous view.//
+			if(viewController != null) {
+				viewController.close();
+				viewController = null;
+			}//if//
+	
+			//Open the new view.//
+			if(value instanceof RemoteViewController) {
+				viewController = (RemoteViewController) value;
+				viewController.openPartial(this, getViewContext());
+			}//if//
+			
+			sendMessage(MESSAGE_END_CHANGE_CONTENTS, null);
+		}//try//
+		finally {
+			removeMessageHold();
+		}//finally//
+	}//if//
+}//internalViewRefreshController()//
+/* (non-Javadoc)
+ * @see com.foundation.tcv.swt.server.AbstractComponent#internalOnValueChanged(com.foundation.view.SingleResourceAssociation)
+ */
+protected void internalOnValueChanged(SingleResourceAssociation resourceAssociation, int flags) {
+	if(resourceAssociation == controllerAssociation) {
+		internalViewRefreshController();
+	}//if//
+	else {
+		super.internalOnValueChanged(resourceAssociation, flags);
+	}//else//
+}//internalOnValueChanged()//
+/* (non-Javadoc)
+ * @see com.foundation.tcv.swt.server.AbstractComponent#getClientClassName()
+ */
+protected String getClientClassName() {
+	return "com.foundation.tcv.swt.client.PanelViewer";
+}//getClientClassName()//
+}//PanelViewer//