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- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.area;
-
- import java.awt.geom.Rectangle2D;
- import java.io.IOException;
- import java.util.HashMap;
-
- import org.apache.fop.traits.BorderProps;
-
- /**
- * Region Viewport reference area.
- * This area is the viewport for a region and contains a region area.
- */
- public class RegionViewport extends Area implements Cloneable {
- // this rectangle is relative to the page
- private RegionReference region;
- private Rectangle2D viewArea;
- private boolean clip = false;
-
- /**
- * Create a new region viewport.
- *
- * @param viewArea the view area of this viewport
- */
- public RegionViewport(Rectangle2D viewArea) {
- this.viewArea = viewArea;
- }
-
- /**
- * Set the region for this region viewport.
- *
- * @param reg the child region inside this viewport
- */
- public void setRegion(RegionReference reg) {
- region = reg;
- }
-
- /**
- * Get the region for this region viewport.
- *
- * @return the child region inside this viewport
- */
- public RegionReference getRegion() {
- return region;
- }
-
- /**
- * Set the clipping for this region viewport.
- *
- * @param c the clipping value
- */
- public void setClip(boolean c) {
- clip = c;
- }
-
- /**
- * Get the view area of this viewport.
- *
- * @return the viewport rectangle area
- */
- public Rectangle2D getViewArea() {
- return viewArea;
- }
-
- /**
- * Return the sum of region border- and padding-before
- *
- * @return width in millipoints
- */
- public int getBorderAndPaddingWidthBefore() {
- int margin = 0;
- BorderProps bps = (BorderProps) getTrait(Trait.BORDER_BEFORE);
- if (bps != null) {
- margin = bps.width;
- }
-
- Integer padWidth = (Integer) getTrait(Trait.PADDING_BEFORE);
- if (padWidth != null) {
- margin += padWidth.intValue();
- }
-
- return margin;
- }
-
- /**
- * Return the sum of region border- and padding-after
- *
- * @return width in millipoints
- */
- public int getBorderAndPaddingWidthAfter() {
- int margin = 0;
-
- BorderProps bps = (BorderProps) getTrait(Trait.BORDER_AFTER);
- if (bps != null) {
- margin = bps.width;
- }
-
- Integer padWidth = (Integer) getTrait(Trait.PADDING_AFTER);
- if (padWidth != null) {
- margin += padWidth.intValue();
- }
-
- return margin;
- }
-
- /**
- * Return the sum of region border- and padding-start
- *
- * @return width in millipoints
- */
- public int getBorderAndPaddingWidthStart() {
- int margin = 0;
- BorderProps bps = (BorderProps) getTrait(Trait.BORDER_START);
- if (bps != null) {
- margin = bps.width;
- }
-
- Integer padWidth = (Integer) getTrait(Trait.PADDING_START);
- if (padWidth != null) {
- margin += padWidth.intValue();
- }
-
- return margin;
- }
-
- /**
- * Return the sum of region border- and padding-end
- *
- * @return width in millipoints
- */
- public int getBorderAndPaddingWidthEnd() {
- int margin = 0;
- BorderProps bps = (BorderProps) getTrait(Trait.BORDER_END);
- if (bps != null) {
- margin = bps.width;
- }
-
- Integer padWidth = (Integer) getTrait(Trait.PADDING_END);
- if (padWidth != null) {
- margin += padWidth.intValue();
- }
-
- return margin;
- }
-
- 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(props);
- out.writeObject(region);
- }
-
- 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();
- props = (HashMap)in.readObject();
- setRegion((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.region = (RegionReference)region.clone();
- if (props != null) {
- rv.props = (HashMap)props.clone();
- }
- return rv;
- }
- }
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