iText 5 itextpdf.jar Source Code

itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

✍: FYIcenter.com

com/itextpdf/text/pdf/BaseField.java

/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2020 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
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.pdf;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;

import com.itextpdf.text.BaseColor;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.error_messages.MessageLocalization;

/** Common field variables.
 * @author Paulo Soares
 */
public abstract class BaseField {

    /** A thin border with 1 point width. */
    public static final float BORDER_WIDTH_THIN = 1;
    /** A medium border with 2 point width. */
    public static final float BORDER_WIDTH_MEDIUM = 2;
    /** A thick border with 3 point width. */
    public static final float BORDER_WIDTH_THICK = 3;
    /** The field is visible. */
    public static final int VISIBLE = 0;
    /** The field is hidden. */
    public static final int HIDDEN = 1;
    /** The field is visible but does not print. */
    public static final int VISIBLE_BUT_DOES_NOT_PRINT = 2;
    /** The field is hidden but is printable. */
    public static final int HIDDEN_BUT_PRINTABLE = 3;
    /** The user may not change the value of the field. */
    public static final int READ_ONLY = PdfFormField.FF_READ_ONLY;
    /** The field must have a value at the time it is exported by a submit-form
     * action.
     */
    public static final int REQUIRED = PdfFormField.FF_REQUIRED;
    /** The field may contain multiple lines of text.
     * This flag is only meaningful with text fields.
     */
    public static final int MULTILINE = PdfFormField.FF_MULTILINE;
    /** The field will not scroll (horizontally for single-line
     * fields, vertically for multiple-line fields) to accommodate more text
     * than will fit within its annotation rectangle. Once the field is full, no
     * further text will be accepted.
     */
    public static final int DO_NOT_SCROLL = PdfFormField.FF_DONOTSCROLL;
    /** The field is intended for entering a secure password that should
     * not be echoed visibly to the screen.
     */
    public static final int PASSWORD = PdfFormField.FF_PASSWORD;
    /** The text entered in the field represents the pathname of
     * a file whose contents are to be submitted as the value of the field.
     */
    public static final int FILE_SELECTION = PdfFormField.FF_FILESELECT;
    /** The text entered in the field will not be spell-checked.
     * This flag is meaningful only in text fields and in combo
     * fields with the <CODE>EDIT</CODE> flag set.
     */
    public static final int DO_NOT_SPELL_CHECK = PdfFormField.FF_DONOTSPELLCHECK;
    /** If set the combo box includes an editable text box as well as a drop list; if
     * clear, it includes only a drop list.
     * This flag is only meaningful with combo fields.
     */
    public static final int EDIT = PdfFormField.FF_EDIT;

    /** whether or not a list may have multiple selections.  Only applies to /CH LIST
     * fields, not combo boxes.
     */
    public static final int MULTISELECT = PdfFormField.FF_MULTISELECT;

    /**
     * combo box flag.
     */
    public static final int COMB = PdfFormField.FF_COMB;

    protected float borderWidth = BORDER_WIDTH_THIN;
    protected int borderStyle = PdfBorderDictionary.STYLE_SOLID;
    protected BaseColor borderColor;
    protected BaseColor backgroundColor;
    protected BaseColor textColor;
    protected BaseFont font;
    protected float fontSize = 0;
    protected int alignment = Element.ALIGN_LEFT;
    protected PdfWriter writer;
    protected String text;
    protected Rectangle box;

    /** Holds value of property rotation. */
    protected int rotation = 0;

    /** Holds value of property visibility. */
    protected int visibility;

    /** Holds value of property fieldName. */
    protected String fieldName;

    /** Holds value of property options. */
    protected int options;

    /** Holds value of property maxCharacterLength. */
    protected int maxCharacterLength;

    private final static HashMap<PdfName, Integer> fieldKeys = new HashMap<PdfName, Integer>();

    static {
        fieldKeys.putAll(PdfCopyFieldsImp.fieldKeys);
        fieldKeys.put(PdfName.T, Integer.valueOf(1));
    }
    /** Creates a new <CODE>TextField</CODE>.
     * @param writer the document <CODE>PdfWriter</CODE>
     * @param box the field location and dimensions
     * @param fieldName the field name. If <CODE>null</CODE> only the widget keys
     * will be included in the field allowing it to be used as a kid field.
     */
    public BaseField(PdfWriter writer, Rectangle box, String fieldName) {
        this.writer = writer;
        setBox(box);
        this.fieldName = fieldName;
    }

    protected BaseFont getRealFont() throws IOException, DocumentException {
        if (font == null)
            return BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, false);
        else
            return font;
    }

    protected PdfAppearance getBorderAppearance() {
        PdfAppearance app = PdfAppearance.createAppearance(writer, box.getWidth(), box.getHeight());
        switch (rotation) {
            case 90:
                app.setMatrix(0, 1, -1, 0, box.getHeight(), 0);
                break;
            case 180:
                app.setMatrix(-1, 0, 0, -1, box.getWidth(), box.getHeight());
                break;
            case 270:
                app.setMatrix(0, -1, 1, 0, 0, box.getWidth());
                break;
        }
        app.saveState();
        // background
        if (backgroundColor != null) {
            app.setColorFill(backgroundColor);
            app.rectangle(0, 0, box.getWidth(), box.getHeight());
            app.fill();
        }
        // border
        if (borderStyle == PdfBorderDictionary.STYLE_UNDERLINE) {
            if (borderWidth != 0 && borderColor != null) {
                app.setColorStroke(borderColor);
                app.setLineWidth(borderWidth);
                app.moveTo(0, borderWidth / 2);
                app.lineTo(box.getWidth(), borderWidth / 2);
                app.stroke();
            }
        }
        else if (borderStyle == PdfBorderDictionary.STYLE_BEVELED) {
            if (borderWidth != 0 && borderColor != null) {
                app.setColorStroke(borderColor);
                app.setLineWidth(borderWidth);
                app.rectangle(borderWidth / 2, borderWidth / 2, box.getWidth() - borderWidth, box.getHeight() - borderWidth);
                app.stroke();
            }
            // beveled
            BaseColor actual = backgroundColor;
            if (actual == null)
                actual = BaseColor.WHITE;
            app.setGrayFill(1);
            drawTopFrame(app);
            app.setColorFill(actual.darker());
            drawBottomFrame(app);
        }
        else if (borderStyle == PdfBorderDictionary.STYLE_INSET) {
            if (borderWidth != 0 && borderColor != null) {
                app.setColorStroke(borderColor);
                app.setLineWidth(borderWidth);
                app.rectangle(borderWidth / 2, borderWidth / 2, box.getWidth() - borderWidth, box.getHeight() - borderWidth);
                app.stroke();
            }
            // inset
            app.setGrayFill(0.5f);
            drawTopFrame(app);
            app.setGrayFill(0.75f);
            drawBottomFrame(app);
        }
        else {
            if (borderWidth != 0 && borderColor != null) {
                if (borderStyle == PdfBorderDictionary.STYLE_DASHED)
                    app.setLineDash(3, 0);
                app.setColorStroke(borderColor);
                app.setLineWidth(borderWidth);
                app.rectangle(borderWidth / 2, borderWidth / 2, box.getWidth() - borderWidth, box.getHeight() - borderWidth);
                app.stroke();
                if ((options & COMB) != 0 && maxCharacterLength > 1) {
                    float step = box.getWidth() / maxCharacterLength;
                    float yb = borderWidth / 2;
                    float yt = box.getHeight() - borderWidth / 2;
                    for (int k = 1; k < maxCharacterLength; ++k) {
                        float x = step * k;
                        app.moveTo(x, yb);
                        app.lineTo(x, yt);
                    }
                    app.stroke();
                }
            }
        }
        app.restoreState();
        return app;
    }

    protected static ArrayList<String> getHardBreaks(String text) {
        ArrayList<String> arr = new ArrayList<String>();
        char cs[] = text.toCharArray();
        int len = cs.length;
        StringBuffer buf = new StringBuffer();
        for (int k = 0; k < len; ++k) {
            char c = cs[k];
            if (c == '\r') {
                if (k + 1 < len && cs[k + 1] == '\n')
                    ++k;
                arr.add(buf.toString());
                buf = new StringBuffer();
            }
            else if (c == '\n') {
                arr.add(buf.toString());
                buf = new StringBuffer();
            }
            else
                buf.append(c);
        }
        arr.add(buf.toString());
        return arr;
    }

    protected static void trimRight(StringBuffer buf) {
        int len = buf.length();
        while (true) {
            if (len == 0)
                return;
            if (buf.charAt(--len) != ' ')
                return;
            buf.setLength(len);
        }
    }

    protected static ArrayList<String> breakLines(ArrayList<String> breaks, BaseFont font, float fontSize, float width) {
        ArrayList<String> lines = new ArrayList<String>();
        StringBuffer buf = new StringBuffer();
        for (int ck = 0; ck < breaks.size(); ++ck) {
            buf.setLength(0);
            float w = 0;
            char cs[] = breaks.get(ck).toCharArray();
            int len = cs.length;
            // 0 inline first, 1 inline, 2 spaces
            int state = 0;
            int lastspace = -1;
            char c = 0;
            int refk = 0;
            for (int k = 0; k < len; ++k) {
                c = cs[k];
                switch (state) {
                    case 0:
                        w += font.getWidthPoint(c, fontSize);
                        buf.append(c);
                        if (w > width) {
                            w = 0;
                            if (buf.length() > 1) {
                                --k;
                                buf.setLength(buf.length() - 1);
                            }
                            lines.add(buf.toString());
                            buf.setLength(0);
                            refk = k;
                            if (c == ' ')
                                state = 2;
                            else
                                state = 1;
                        }
                        else {
                            if (c != ' ')
                                state = 1;
                        }
                        break;
                    case 1:
                        w += font.getWidthPoint(c, fontSize);
                        buf.append(c);
                        if (c == ' ')
                            lastspace = k;
                        if (w > width) {
                            w = 0;
                            if (lastspace >= 0) {
                                k = lastspace;
                                buf.setLength(lastspace - refk);
                                trimRight(buf);
                                lines.add(buf.toString());
                                buf.setLength(0);
                                refk = k;
                                lastspace = -1;
                                state = 2;
                            }
                            else {
                                if (buf.length() > 1) {
                                    --k;
                                    buf.setLength(buf.length() - 1);
                                }
                                lines.add(buf.toString());
                                buf.setLength(0);
                                refk = k;
                                if (c == ' ')
                                    state = 2;
                            }
                        }
                        break;
                    case 2:
                        if (c != ' ') {
                            w = 0;
                            --k;
                            state = 1;
                        }
                        break;
                }
            }
            trimRight(buf);
            lines.add(buf.toString());
        }
        return lines;
    }

    private void drawTopFrame(PdfAppearance app) {
        app.moveTo(borderWidth, borderWidth);
        app.lineTo(borderWidth, box.getHeight() - borderWidth);
        app.lineTo(box.getWidth() - borderWidth, box.getHeight() - borderWidth);
        app.lineTo(box.getWidth() - 2 * borderWidth, box.getHeight() - 2 * borderWidth);
        app.lineTo(2 * borderWidth, box.getHeight() - 2 * borderWidth);
        app.lineTo(2 * borderWidth, 2 * borderWidth);
        app.lineTo(borderWidth, borderWidth);
        app.fill();
    }

    private void drawBottomFrame(PdfAppearance app) {
        app.moveTo(borderWidth, borderWidth);
        app.lineTo(box.getWidth() - borderWidth, borderWidth);
        app.lineTo(box.getWidth() - borderWidth, box.getHeight() - borderWidth);
        app.lineTo(box.getWidth() - 2 * borderWidth, box.getHeight() - 2 * borderWidth);
        app.lineTo(box.getWidth() - 2 * borderWidth, 2 * borderWidth);
        app.lineTo(2 * borderWidth, 2 * borderWidth);
        app.lineTo(borderWidth, borderWidth);
        app.fill();
    }
    /** Gets the border width in points.
     * @return the border width in points
     */
    public float getBorderWidth() {
        return this.borderWidth;
    }

    /** Sets the border width in points. To eliminate the border
     * set the border color to <CODE>null</CODE>.
     * @param borderWidth the border width in points
     */
    public void setBorderWidth(float borderWidth) {
        this.borderWidth = borderWidth;
    }

    /** Gets the border style.
     * @return the border style
     */
    public int getBorderStyle() {
        return this.borderStyle;
    }

    /** Sets the border style. The styles are found in <CODE>PdfBorderDictionary</CODE>
     * and can be <CODE>STYLE_SOLID</CODE>, <CODE>STYLE_DASHED</CODE>,
     * <CODE>STYLE_BEVELED</CODE>, <CODE>STYLE_INSET</CODE> and
     * <CODE>STYLE_UNDERLINE</CODE>.
     * @param borderStyle the border style
     */
    public void setBorderStyle(int borderStyle) {
        this.borderStyle = borderStyle;
    }

    /** Gets the border color.
     * @return the border color
     */
    public BaseColor getBorderColor() {
        return this.borderColor;
    }

    /** Sets the border color. Set to <CODE>null</CODE> to remove
     * the border.
     * @param borderColor the border color
     */
    public void setBorderColor(BaseColor borderColor) {
        this.borderColor = borderColor;
    }

    /** Gets the background color.
     * @return the background color
     */
    public BaseColor getBackgroundColor() {
        return this.backgroundColor;
    }

    /** Sets the background color. Set to <CODE>null</CODE> for
     * transparent background.
     * @param backgroundColor the background color
     */
    public void setBackgroundColor(BaseColor backgroundColor) {
        this.backgroundColor = backgroundColor;
    }

    /** Gets the text color.
     * @return the text color
     */
    public BaseColor getTextColor() {
        return this.textColor;
    }

    /** Sets the text color. If <CODE>null</CODE> the color used
     * will be black.
     * @param textColor the text color
     */
    public void setTextColor(BaseColor textColor) {
        this.textColor = textColor;
    }

    /** Gets the text font.
     * @return the text font
     */
    public BaseFont getFont() {
        return this.font;
    }

    /** Sets the text font. If <CODE>null</CODE> then Helvetica
     * will be used.
     * @param font the text font
     */
    public void setFont(BaseFont font) {
        this.font = font;
    }

    /** Gets the font size.
     * @return the font size
     */
    public float getFontSize() {
        return this.fontSize;
    }

    /** Sets the font size. If 0 then auto-sizing will be used but
     * only for text fields.
     * @param fontSize the font size
     */
    public void setFontSize(float fontSize) {
        this.fontSize = fontSize;
    }

    /** Gets the text horizontal alignment.
     * @return the text horizontal alignment
     */
    public int getAlignment() {
        return this.alignment;
    }

    /** Sets the text horizontal alignment. It can be <CODE>Element.ALIGN_LEFT</CODE>,
     * <CODE>Element.ALIGN_CENTER</CODE> and <CODE>Element.ALIGN_RIGHT</CODE>.
     * @param alignment the text horizontal alignment
     */
    public void setAlignment(int alignment) {
        this.alignment = alignment;
    }

    /** Gets the text.
     * @return the text
     */
    public String getText() {
        return this.text;
    }

    /** Sets the text for text fields.
     * @param text the text
     */
    public void setText(String text) {
        this.text = text;
    }

    /** Gets the field dimension and position.
     * @return the field dimension and position
     */
    public Rectangle getBox() {
        return this.box;
    }

    /** Sets the field dimension and position.
     * @param box the field dimension and position
     */
    public void setBox(Rectangle box) {
    	if (box == null) {
    		this.box = null;
    	}
    	else {
    		this.box = new Rectangle(box);
    		this.box.normalize();
    	}
    }

    /** Gets the field rotation.
     * @return the field rotation
     */
    public int getRotation() {
        return this.rotation;
    }

    /** Sets the field rotation. This value should be the same as
     * the page rotation where the field will be shown.
     * @param rotation the field rotation
     */
    public void setRotation(int rotation) {
        if (rotation % 90 != 0)
            throw new IllegalArgumentException(MessageLocalization.getComposedMessage("rotation.must.be.a.multiple.of.90"));
        rotation %= 360;
        if (rotation < 0)
            rotation += 360;
        this.rotation = rotation;
    }

    /** Convenience method to set the field rotation the same as the
     * page rotation.
     * @param page the page
     */
    public void setRotationFromPage(Rectangle page) {
        setRotation(page.getRotation());
    }

    /** Gets the field visibility flag.
     * @return the field visibility flag
     */
    public int getVisibility() {
        return this.visibility;
    }

    /** Sets the field visibility flag. This flags can be one of
     * <CODE>VISIBLE</CODE>, <CODE>HIDDEN</CODE>, <CODE>VISIBLE_BUT_DOES_NOT_PRINT</CODE>
     * and <CODE>HIDDEN_BUT_PRINTABLE</CODE>.
     * @param visibility field visibility flag
     */
    public void setVisibility(int visibility) {
        this.visibility = visibility;
    }

    /** Gets the field name.
     * @return the field name
     */
    public String getFieldName() {
        return this.fieldName;
    }

    /** Sets the field name.
     * @param fieldName the field name. If <CODE>null</CODE> only the widget keys
     * will be included in the field allowing it to be used as a kid field.
     */
    public void setFieldName(String fieldName) {
        this.fieldName = fieldName;
    }

    /** Gets the option flags.
     * @return the option flags
     */
    public int getOptions() {
        return this.options;
    }

    /** Sets the option flags. The option flags can be a combination by oring of
     * <CODE>READ_ONLY</CODE>, <CODE>REQUIRED</CODE>,
     * <CODE>MULTILINE</CODE>, <CODE>DO_NOT_SCROLL</CODE>,
     * <CODE>PASSWORD</CODE>, <CODE>FILE_SELECTION</CODE>,
     * <CODE>DO_NOT_SPELL_CHECK</CODE> and <CODE>EDIT</CODE>.
     * @param options the option flags
     */
    public void setOptions(int options) {
        this.options = options;
    }

    /** Gets the maximum length of the field's text, in characters.
     * @return the maximum length of the field's text, in characters.
     */
    public int getMaxCharacterLength() {
        return this.maxCharacterLength;
    }

    /** Sets the maximum length of the field's text, in characters.
     * It is only meaningful for text fields.
     * @param maxCharacterLength the maximum length of the field's text, in characters
     */
    public void setMaxCharacterLength(int maxCharacterLength) {
        this.maxCharacterLength = maxCharacterLength;
    }

    /**
     * Getter for property writer.
     * @return Value of property writer.
     */
    public PdfWriter getWriter() {
        return writer;
    }

    /**
     * Setter for property writer.
     * @param writer New value of property writer.
     */
    public void setWriter(PdfWriter writer) {
        this.writer = writer;
    }

    /**
     * Moves the field keys from <CODE>from</CODE> to <CODE>to</CODE>. The moved keys
     * are removed from <CODE>from</CODE>.
     * @param from the source
     * @param to the destination. It may be <CODE>null</CODE>
     */
    public static void moveFields(PdfDictionary from, PdfDictionary to) {
        for (Iterator<PdfName> i = from.getKeys().iterator(); i.hasNext();) {
            PdfName key = i.next();
            if (fieldKeys.containsKey(key)) {
                if (to != null)
                    to.put(key, from.get(key));
                i.remove();
            }
        }
    }
}

com/itextpdf/text/pdf/BaseField.java

 

⇒ iText-2.1.6.jar - iText, a JAVA-PDF library

⇐ iText layout.jar Source Code

⇑ Download and Install iText Java Library

⇑⇑ iText for PDF Generation

2021-07-03, 48119👍, 0💬