bitsy-wallet/PDFJet/src/main/java/com/pdfjet/PlainText.java

/**
 *  PlainText.java
 *
Copyright (c) 2018, Innovatics Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,
      this list of conditions and the following disclaimer.
 
    * Redistributions in binary form must reproduce the above copyright notice,
      this list of conditions and the following disclaimer in the documentation
      and / or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package com.pdfjet;

import java.util.*;

/**
 *  Please see Example_45
 */
public class PlainText implements Drawable {

    private Font font;
    private String[] textLines;
    private float fontSize;
    private float x;
    private float y;
    private float w = 500f;
    private float leading;
    private int backgroundColor = Color.white;
    private int borderColor = Color.white;
    private int textColor = Color.black;
    private List<float[]> endOfLinePoints = null;

    private String language = null;
    private String altDescription = null;
    private String actualText = null;


    public PlainText(Font font, String[] textLines) {
        this.font = font;
        this.fontSize = font.getSize();
        this.textLines = textLines;
        this.endOfLinePoints = new ArrayList<float[]>();
        StringBuilder buf = new StringBuilder();
        for (String str : textLines) {
            buf.append(str);
            buf.append(' ');
        }
        this.altDescription = buf.toString();
        this.actualText = buf.toString();
    }


    public PlainText setFontSize(float fontSize) {
        this.fontSize = fontSize;
        return this;
    }


    public PlainText setLocation(float x, float y) {
        this.x = x;
        this.y = y;
        return this;
    }


    public PlainText setWidth(float w) {
        this.w = w;
        return this;
    }


    public PlainText setLeading(float leading) {
        this.leading = leading;
        return this;
    }


    public PlainText setBackgroundColor(int backgroundColor) {
        this.backgroundColor = backgroundColor;
        return this;
    }


    public PlainText setBorderColor(int borderColor) {
        this.borderColor = borderColor;
        return this;
    }


    public PlainText setTextColor(int textColor) {
        this.textColor = textColor;
        return this;
    }


    public List<float[]> getEndOfLinePoints() {
        return endOfLinePoints;
    }


    /**
     *  Draws this PlainText on the specified page.
     *
     *  @param page the page to draw this PlainText on.
     *  @return x and y coordinates of the bottom right corner of this component.
     *  @throws Exception
     */
    public float[] drawOn(Page page) throws Exception {
        float originalSize = font.getSize();
        font.setSize(fontSize);
        float y_text = y + font.getAscent();

        page.addBMC(StructElem.SPAN, language, Single.space, Single.space);
        page.setBrushColor(backgroundColor);
        leading = font.getBodyHeight();
        float h = font.getBodyHeight() * textLines.length;
        page.fillRect(x, y, w, h);
        page.setPenColor(borderColor);
        page.setPenWidth(0f);
        page.drawRect(x, y, w, h);
        page.addEMC();

        page.addBMC(StructElem.SPAN, language, altDescription, actualText);
        page.setTextStart();
        page.setTextFont(font);
        page.setBrushColor(textColor);
        page.setTextLeading(leading);
        page.setTextLocation(x, y_text);
        for (String str : textLines) {
            if (font.skew15) {
                setTextSkew(page, 0.26f, x, y_text);
            }
            page.println(str);
            endOfLinePoints.add(new float[] { x + font.stringWidth(str), y_text });
            y_text += leading;
        }
        page.setTextEnd();
        page.addEMC();

        font.setSize(originalSize);

        return new float[] { x + w, y + h };
    }


    private void setTextSkew(
            Page page, float skew, float x, float y) throws Exception {
        page.append(1f);
        page.append(' ');
        page.append(0f);
        page.append(' ');
        page.append(skew);
        page.append(' ');
        page.append(1f);
        page.append(' ');
        page.append(x);
        page.append(' ');
        page.append(page.height - y);
        page.append(" Tm\n");
    }

}   // End of PlainText.java