| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.area; |
| |
| import org.apache.fop.traits.WritingModeTraitsGetter; |
| |
| import java.awt.Rectangle; |
| import java.awt.geom.Rectangle2D; |
| import java.io.IOException; |
| import java.util.HashMap; |
| |
| /** |
| * Region Viewport area. |
| * This object represents the region-viewport-area. It has a |
| * region-reference-area as its child. These areas are described |
| * in the fo:region-body description in the XSL Recommendation. |
| */ |
| public class RegionViewport extends Area implements Cloneable, Viewport { |
| |
| private static final long serialVersionUID = 505781815165102572L; |
| |
| // this rectangle is relative to the page |
| private RegionReference regionReference; |
| private Rectangle2D viewArea; |
| private boolean clip = false; |
| |
| /** |
| * Create a new region-viewport-area |
| * |
| * @param viewArea the view area of this viewport |
| */ |
| public RegionViewport(Rectangle2D viewArea) { |
| this.viewArea = viewArea; |
| addTrait(Trait.IS_VIEWPORT_AREA, Boolean.TRUE); |
| } |
| |
| /** |
| * Set the region-reference-area for this region viewport. |
| * |
| * @param reg the child region-reference-area inside this viewport |
| */ |
| public void setRegionReference(RegionReference reg) { |
| regionReference = reg; |
| } |
| |
| /** |
| * Get the region-reference-area for this region viewport. |
| * |
| * @return the child region-reference-area inside this viewport |
| */ |
| public RegionReference getRegionReference() { |
| return regionReference; |
| } |
| |
| /** |
| * Set the clipping for this region viewport. |
| * |
| * @param c the clipping value |
| */ |
| public void setClip(boolean c) { |
| clip = c; |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean hasClip() { |
| return this.clip; |
| } |
| |
| /** {@inheritDoc} */ |
| public Rectangle getClipRectangle() { |
| if (clip) { |
| return new Rectangle(getIPD(), getBPD()); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Get the view area of this viewport. |
| * |
| * @return the viewport rectangle area |
| */ |
| public Rectangle2D getViewArea() { |
| return viewArea; |
| } |
| |
| private void writeObject(java.io.ObjectOutputStream out) |
| throws IOException { |
| out.writeFloat((float) viewArea.getX()); |
| out.writeFloat((float) viewArea.getY()); |
| out.writeFloat((float) viewArea.getWidth()); |
| out.writeFloat((float) viewArea.getHeight()); |
| out.writeBoolean(clip); |
| out.writeObject(traits); |
| out.writeObject(regionReference); |
| } |
| |
| private void readObject(java.io.ObjectInputStream in) |
| throws IOException, ClassNotFoundException { |
| viewArea = new Rectangle2D.Float(in.readFloat(), in.readFloat(), |
| in.readFloat(), in.readFloat()); |
| clip = in.readBoolean(); |
| traits = (HashMap)in.readObject(); |
| setRegionReference((RegionReference) in.readObject()); |
| } |
| |
| /** |
| * Clone this region viewport. |
| * Used when creating a copy from the page master. |
| * |
| * @return a new copy of this region viewport |
| */ |
| public Object clone() { |
| RegionViewport rv = new RegionViewport((Rectangle2D)viewArea.clone()); |
| rv.regionReference = (RegionReference)regionReference.clone(); |
| if (traits != null) { |
| rv.traits = new HashMap(traits); |
| } |
| if (foreignAttributes != null) { |
| rv.foreignAttributes = new HashMap(foreignAttributes); |
| } |
| return rv; |
| } |
| |
| /** |
| * Sets the writing mode traits for the region reference of |
| * this region viewport |
| * @param wmtg a WM traits getter |
| */ |
| public void setWritingModeTraits(WritingModeTraitsGetter wmtg) { |
| if (regionReference != null) { |
| regionReference.setWritingModeTraits(wmtg); |
| } |
| } |
| |
| } |
| |