org.apache.fop.area.inline.InlineViewport Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of converter3 Show documentation
Tool to convert CSV and XLS to XML, to transform XML and to convert XML to CSV, HTML, other text files, PDF etc., useful as command line tool and integrated in other projects.
There is a newer version: 3.119
Show newest version
/*
 * 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: InlineViewport.java 1642793 2014-12-02 00:29:57Z lbernardo $ */

package org.apache.fop.area.inline;

import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.util.TreeMap;

import org.apache.fop.area.Area;
import org.apache.fop.area.Viewport;

/**
 * Inline viewport area.
 * This is an inline-level viewport area for inline container,
 * external graphic and instream foreign object. This viewport
 * holds the area and positions it.
 */
public class InlineViewport extends InlineArea implements Viewport {

    private static final long serialVersionUID = 813338534627918689L;

    // contents could be container, foreign object or image
    private Area content;
    // clipping for the viewport
    private boolean clip;
    // position of the child area relative to this area
    private Rectangle2D contentPosition;

    /**
     * Create a new viewport area with the content area.
     *
     * @param child the child content area of this viewport
     */
    public InlineViewport(Area child) {
        this(child, -1);
    }

    /**
     * Create a new viewport area with the content area.
     *
     * @param child the child content area of this viewport
     * @param bidiLevel the bidirectional embedding level (or -1 if not defined)
     */
    public InlineViewport(Area child, int bidiLevel) {
        super(0, bidiLevel);
        this.content = child;
    }

    /**
     * Set the clip of this viewport.
     *
     * @param c true if this viewport should clip
     */
    public void setClip(boolean c) {
        this.clip = c;
    }

    /** {@inheritDoc} */
    public boolean hasClip() {
        return this.clip;
    }

    /** {@inheritDoc} */
    public Rectangle getClipRectangle() {
        if (clip) {
            return new Rectangle(getIPD(), getBPD());
        } else {
            return null;
        }
    }

    /**
     * Set the position and size of the content of this viewport.
     *
     * @param cp the position and size to place the content
     */
    public void setContentPosition(Rectangle2D cp) {
        this.contentPosition = cp;
    }

    /**
     * Get the position and size of the content of this viewport.
     *
     * @return the position and size to place the content
     */
    public Rectangle2D getContentPosition() {
        return this.contentPosition;
    }

    /**
     * Sets the content area.
     * @param content the content area
     */
    public void setContent(Area content) {
        this.content = content;
    }

    /**
     * Get the content area for this viewport.
     *
     * @return the content area
     */
    public Area getContent() {
        return this.content;
    }

    private void writeObject(java.io.ObjectOutputStream out)
    throws IOException {
        out.writeBoolean(contentPosition != null);
        if (contentPosition != null) {
            out.writeFloat((float) contentPosition.getX());
            out.writeFloat((float) contentPosition.getY());
            out.writeFloat((float) contentPosition.getWidth());
            out.writeFloat((float) contentPosition.getHeight());
        }
        out.writeBoolean(clip);
        out.writeObject((TreeMap)traits);
        out.writeObject(content);
    }

    private void readObject(java.io.ObjectInputStream in)
    throws IOException, ClassNotFoundException {
        if (in.readBoolean()) {
            contentPosition = new Rectangle2D.Float(in.readFloat(),
                                                    in.readFloat(),
                                                    in.readFloat(),
                                                    in.readFloat());
        }
        this.clip = in.readBoolean();
        this.traits = (TreeMap) in.readObject();
        this.content = (Area) in.readObject();
    }

    public int getEffectiveIPD() {
        return getIPD();
    }
}