com.itextpdf.kernel.pdf.canvas.draw.DottedLine Maven / Gradle / Ivy

/*

    This file is part of the iText (R) project.
    Copyright (c) 1998-2018 iText Group NV
    Authors: Bruno Lowagie, Paulo Soares, et al.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License version 3
    as published by the Free Software Foundation with the addition of the
    following permission added to Section 15 as permitted in Section 7(a):
    FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
    ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
    OF THIRD PARTY RIGHTS

    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    or FITNESS FOR A PARTICULAR PURPOSE.
    See the GNU Affero General Public License for more details.
    You should have received a copy of the GNU Affero General Public License
    along with this program; if not, see http://www.gnu.org/licenses or write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA, 02110-1301 USA, or download the license from the following URL:
    http://itextpdf.com/terms-of-use/

    The interactive user interfaces in modified source and object code versions
    of this program must display Appropriate Legal Notices, as required under
    Section 5 of the GNU Affero General Public License.

    In accordance with Section 7(b) of the GNU Affero General Public License,
    a covered work must retain the producer line in every PDF that is created
    or manipulated using iText.

    You can be released from the requirements of the license by purchasing
    a commercial license. Buying such a license is mandatory as soon as you
    develop commercial activities involving the iText software without
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 */
package com.itextpdf.kernel.pdf.canvas.draw;

import com.itextpdf.kernel.colors.Color;
import com.itextpdf.kernel.colors.ColorConstants;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.kernel.pdf.canvas.PdfCanvasConstants;

/**
 * Implementation of {@link ILineDrawer} which draws a dotted horizontal line along
 * the bottom edge of the specified rectangle.
 */
public class DottedLine implements ILineDrawer {

    /**
     * the gap between the dots.
     */
    protected float gap = 4;

    private float lineWidth = 1;

    private Color color = ColorConstants.BLACK;

    /**
     * Constructs a dotted horizontal line which will be drawn along the bottom edge of the specified rectangle.
     */
    public DottedLine() {
    }

    /**
     * Constructs a dotted horizontal line which will be drawn along the bottom edge of the specified rectangle.
     *
     * @param lineWidth the width of the line
     * @param gap       the gap between the center of the dots of the dotted line.
     */
    public DottedLine(float lineWidth, float gap) {
        this.lineWidth = lineWidth;
        this.gap = gap;
    }

    /**
     * Constructs a dotted horizontal line which will be drawn along the bottom edge of the specified rectangle.
     *
     * @param lineWidth the width of the line
     */
    public DottedLine(float lineWidth) {
        this.lineWidth = lineWidth;
    }

    @Override
    public void draw(PdfCanvas canvas, Rectangle drawArea) {
        canvas.saveState()
                .setLineWidth(lineWidth)
                .setStrokeColor(color)
                .setLineDash(0, gap, gap / 2)
                .setLineCapStyle(PdfCanvasConstants.LineCapStyle.ROUND)
                .moveTo(drawArea.getX(), drawArea.getY() + lineWidth / 2)
                .lineTo(drawArea.getX() + drawArea.getWidth(), drawArea.getY() + lineWidth / 2)
                .stroke()
                .restoreState();
    }

    /**
     * Getter for the gap between the center of the dots of the dotted line.
     *
     * @return the gap between the center of the dots
     */
    public float getGap() {
        return gap;
    }

    /**
     * Setter for the gap between the center of the dots of the dotted line.
     *
     * @param    gap    the gap between the center of the dots
     */
    public void setGap(float gap) {
        this.gap = gap;
    }

    /**
     * Gets line width in points
     *
     * @return line thickness
     */
    public float getLineWidth() {
        return lineWidth;
    }

    /**
     * Sets line width in points
     *
     * @param lineWidth new line width
     */
    public void setLineWidth(float lineWidth) {
        this.lineWidth = lineWidth;
    }

    @Override
    public Color getColor() {
        return color;
    }

    @Override
    public void setColor(Color color) {
        this.color = color;
    }


}