001: /*
002: * Copyright (c) 2007, intarsys consulting GmbH
003: *
004: * Redistribution and use in source and binary forms, with or without
005: * modification, are permitted provided that the following conditions are met:
006: *
007: * - Redistributions of source code must retain the above copyright notice,
008: * this list of conditions and the following disclaimer.
009: *
010: * - Redistributions in binary form must reproduce the above copyright notice,
011: * this list of conditions and the following disclaimer in the documentation
012: * and/or other materials provided with the distribution.
013: *
014: * - Neither the name of intarsys nor the names of its contributors may be used
015: * to endorse or promote products derived from this software without specific
016: * prior written permission.
017: *
018: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
019: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
020: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
021: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
022: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
023: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
024: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
025: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
026: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
027: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
028: * POSSIBILITY OF SUCH DAMAGE.
029: */
030: package de.intarsys.pdf.pd;
031:
032: import de.intarsys.pdf.cos.COSBasedObject;
033: import de.intarsys.pdf.cos.COSDictionary;
034: import de.intarsys.pdf.cos.COSName;
035: import de.intarsys.pdf.cos.COSObject;
036:
037: /**
038: * The GoTo action.
039: * <p>
040: * When executed the action focuses a viewer to a new destination.
041: *
042: */
043: public class PDActionGoTo extends PDAction {
044: /**
045: * The meta class implementation
046: */
047: static public class MetaClass extends PDAction.MetaClass {
048: protected MetaClass(Class instanceClass) {
049: super (instanceClass);
050: }
051:
052: /*
053: * (non-Javadoc)
054: *
055: * @see de.intarsys.pdf.cos.COSBasedObject.MetaClass#doDetermineClass(de.intarsys.pdf.cos.COSObject)
056: */
057: protected COSBasedObject.MetaClass doDetermineClass(
058: COSObject object) {
059: return PDActionGoTo.META;
060: }
061: }
062:
063: /** The meta class instance */
064: static public final MetaClass META = new MetaClass(MetaClass.class
065: .getDeclaringClass());
066:
067: public static final COSName CN_ActionType_GoTo = COSName
068: .constant("GoTo");
069:
070: public static final COSName DK_D = COSName.constant("D");
071:
072: private PDDestination destination;
073:
074: protected PDActionGoTo(COSObject object) {
075: super (object);
076: }
077:
078: public COSName cosGetExpectedActionType() {
079: return CN_ActionType_GoTo;
080: }
081:
082: protected void initializeFromCos() {
083: super .initializeFromCos();
084: }
085:
086: public PDDestination getDestination() {
087: if (destination == null) {
088: COSObject destObject;
089: if (cosGetObject() instanceof COSDictionary) {
090: destObject = cosGetField(DK_D);
091: } else {
092: destObject = cosGetObject();
093: }
094: destination = (PDDestination) PDDestination.META
095: .createFromCos(destObject);
096: }
097: return destination;
098: }
099:
100: public void invalidateCaches() {
101: destination = null;
102: super.invalidateCaches();
103: }
104: }
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