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

The Source Code files are provided together with the JAR file in the binary packge like iText7-Core-7.1.4.zip. You can download it at iText 7 Core Download site.

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

The source code of layout-7.1.4.jar is provided below:

⏎ com/itextpdf/layout/renderer/ImageRenderer.java

/*

    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
    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.layout.renderer;

import com.itextpdf.io.LogMessageConstant;
import com.itextpdf.kernel.geom.AffineTransform;
import com.itextpdf.kernel.geom.Point;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.canvas.CanvasArtifact;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.kernel.pdf.tagutils.TagTreePointer;
import com.itextpdf.kernel.pdf.xobject.PdfFormXObject;
import com.itextpdf.kernel.pdf.xobject.PdfImageXObject;
import com.itextpdf.kernel.pdf.xobject.PdfXObject;
import com.itextpdf.layout.borders.Border;
import com.itextpdf.layout.element.Image;
import com.itextpdf.layout.layout.LayoutArea;
import com.itextpdf.layout.layout.LayoutContext;
import com.itextpdf.layout.layout.LayoutResult;
import com.itextpdf.layout.layout.MinMaxWidthLayoutResult;
import com.itextpdf.layout.minmaxwidth.MinMaxWidth;
import com.itextpdf.layout.minmaxwidth.MinMaxWidthUtils;
import com.itextpdf.layout.property.FloatPropertyValue;
import com.itextpdf.layout.property.OverflowPropertyValue;
import com.itextpdf.layout.property.Property;
import com.itextpdf.layout.property.UnitValue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.itextpdf.io.util.MessageFormatUtil;
import com.itextpdf.layout.tagging.LayoutTaggingHelper;

import java.util.List;

public class ImageRenderer extends AbstractRenderer implements ILeafElementRenderer {

    protected Float fixedXPosition;
    protected Float fixedYPosition;
    protected float pivotY;
    protected float deltaX;
    protected float imageWidth;
    protected float imageHeight;
    float[] matrix = new float[6];
    private Float height;
    private Float width;
    private Rectangle initialOccupiedAreaBBox;
    private float rotatedDeltaX;
    private float rotatedDeltaY;

    /**
     * Creates an ImageRenderer from its corresponding layout object.
     *
     * @param image the {@link com.itextpdf.layout.element.Image} which this object should manage
     */
    public ImageRenderer(Image image) {
        super(image);
    }

    @Override
    public LayoutResult layout(LayoutContext layoutContext) {
        LayoutArea area = layoutContext.getArea().clone();
        Rectangle layoutBox = area.getBBox().clone();

        AffineTransform t = new AffineTransform();
        Image modelElement = (Image) (getModelElement());
        PdfXObject xObject = modelElement.getXObject();
        imageWidth = modelElement.getImageWidth();
        imageHeight = modelElement.getImageHeight();

        calculateImageDimensions(layoutBox, t, xObject);

        OverflowPropertyValue overflowX = null != parent
                ? parent.<OverflowPropertyValue>getProperty(Property.OVERFLOW_X)
                : OverflowPropertyValue.FIT;

        List<Rectangle> floatRendererAreas = layoutContext.getFloatRendererAreas();
        float clearHeightCorrection = FloatingHelper.calculateClearHeightCorrection(this, floatRendererAreas, layoutBox);
        FloatPropertyValue floatPropertyValue = this.<FloatPropertyValue>getProperty(Property.FLOAT);
        if (FloatingHelper.isRendererFloating(this, floatPropertyValue)) {
            layoutBox.decreaseHeight(clearHeightCorrection);
            FloatingHelper.adjustFloatedBlockLayoutBox(this, layoutBox, width, floatRendererAreas, floatPropertyValue, overflowX);
        } else {
            clearHeightCorrection = FloatingHelper.adjustLayoutBoxAccordingToFloats(floatRendererAreas, layoutBox, width, clearHeightCorrection, null);
        }

        applyMargins(layoutBox, false);
        Border[] borders = getBorders();
        applyBorderBox(layoutBox, borders, false);

        Float declaredMaxHeight = retrieveMaxHeight();
        OverflowPropertyValue overflowY = null == parent
                    || ((null == declaredMaxHeight || declaredMaxHeight > layoutBox.getHeight())
                        && !layoutContext.isClippedHeight())
                ? OverflowPropertyValue.FIT
                : parent.<OverflowPropertyValue>getProperty(Property.OVERFLOW_Y);
        boolean processOverflowX = !isOverflowFit(overflowX);
        boolean processOverflowY = !isOverflowFit(overflowY);
        if (isAbsolutePosition()) {
            applyAbsolutePosition(layoutBox);
        }
        occupiedArea = new LayoutArea(area.getPageNumber(), new Rectangle(layoutBox.getX(), layoutBox.getY() + layoutBox.getHeight(), 0, 0));

        float imageItselfScaledWidth = (float) width;
        float imageItselfScaledHeight = (float) height;

        if (isFixedLayout()) {
            fixedXPosition = this.getPropertyAsFloat(Property.LEFT);
            fixedYPosition = this.getPropertyAsFloat(Property.BOTTOM);
        }

        Float angle = this.getPropertyAsFloat(Property.ROTATION_ANGLE);
        // See in adjustPositionAfterRotation why angle = 0 is necessary
        if (null == angle) {
            angle = 0f;
        }
        t.rotate((float) angle);
        initialOccupiedAreaBBox = getOccupiedAreaBBox().clone();
        float scaleCoef = adjustPositionAfterRotation((float) angle, layoutBox.getWidth(), layoutBox.getHeight());

        imageItselfScaledHeight *= scaleCoef;
        imageItselfScaledWidth *= scaleCoef;

        initialOccupiedAreaBBox.moveDown(imageItselfScaledHeight);
        initialOccupiedAreaBBox.setHeight(imageItselfScaledHeight);
        initialOccupiedAreaBBox.setWidth(imageItselfScaledWidth);
        if (xObject instanceof PdfFormXObject) {
            t.scale(scaleCoef, scaleCoef);
        }

        getMatrix(t, imageItselfScaledWidth, imageItselfScaledHeight);

        // indicates whether the placement is forced
        boolean isPlacingForced = false;
        if (width > layoutBox.getWidth() || height > layoutBox.getHeight()) {
            if (Boolean.TRUE.equals(getPropertyAsBoolean(Property.FORCED_PLACEMENT)) || (width > layoutBox.getWidth() && processOverflowX) || (height > layoutBox.getHeight() && processOverflowY)) {
                isPlacingForced = true;
            } else {
                occupiedArea.getBBox().setHeight(initialOccupiedAreaBBox.getHeight());
                return new MinMaxWidthLayoutResult(LayoutResult.NOTHING, occupiedArea, null, this, this);
            }
        }

        occupiedArea.getBBox().moveDown((float) height);
        if (borders[3] != null) {
            height += (float) Math.sin((float) angle) * borders[3].getWidth();
        }
        occupiedArea.getBBox().setHeight((float) height);
        occupiedArea.getBBox().setWidth((float) width);

        UnitValue leftMargin = this.getPropertyAsUnitValue(Property.MARGIN_LEFT);
        if (!leftMargin.isPointValue()) {
            Logger logger = LoggerFactory.getLogger(ImageRenderer.class);
            logger.error(MessageFormatUtil.format(LogMessageConstant.PROPERTY_IN_PERCENTS_NOT_SUPPORTED, Property.MARGIN_LEFT));
        }
        UnitValue topMargin = this.getPropertyAsUnitValue(Property.MARGIN_TOP);
        if (!topMargin.isPointValue()) {
            Logger logger = LoggerFactory.getLogger(ImageRenderer.class);
            logger.error(MessageFormatUtil.format(LogMessageConstant.PROPERTY_IN_PERCENTS_NOT_SUPPORTED, Property.MARGIN_TOP));
        }

        if (0 != leftMargin.getValue() || 0 != topMargin.getValue()) {
            translateImage(leftMargin.getValue(), topMargin.getValue(), t);
            getMatrix(t, imageItselfScaledWidth, imageItselfScaledHeight);
        }

        applyBorderBox(occupiedArea.getBBox(), borders, true);
        applyMargins(occupiedArea.getBBox(), true);

        if (angle != 0) {
            applyRotationLayout((float) angle);
        }

        float unscaledWidth = occupiedArea.getBBox().getWidth() / scaleCoef;
        MinMaxWidth minMaxWidth = new MinMaxWidth(unscaledWidth, unscaledWidth, 0);
        UnitValue rendererWidth = this.<UnitValue>getProperty(Property.WIDTH);

        if (rendererWidth != null && rendererWidth.isPercentValue()) {
            minMaxWidth.setChildrenMinWidth(0);
            float coeff = imageWidth / (float) retrieveWidth(area.getBBox().getWidth());
            minMaxWidth.setChildrenMaxWidth(unscaledWidth * coeff);
        } else {
            boolean autoScale = hasProperty(Property.AUTO_SCALE) && (boolean) this.<Boolean>getProperty(Property.AUTO_SCALE);
            boolean autoScaleWidth = hasProperty(Property.AUTO_SCALE_WIDTH) && (boolean) this.<Boolean>getProperty(Property.AUTO_SCALE_WIDTH);
            if (autoScale || autoScaleWidth) {
                minMaxWidth.setChildrenMinWidth(0);
            }
        }

        FloatingHelper.removeFloatsAboveRendererBottom(floatRendererAreas, this);
        LayoutArea editedArea = FloatingHelper.adjustResultOccupiedAreaForFloatAndClear(this, floatRendererAreas, layoutContext.getArea().getBBox(), clearHeightCorrection, false);

        applyAbsolutePositionIfNeeded(layoutContext);

        return new MinMaxWidthLayoutResult(LayoutResult.FULL, editedArea, null, null, isPlacingForced ? this : null)
                .setMinMaxWidth(minMaxWidth);
    }

    @Override
    public void draw(DrawContext drawContext) {
        if (occupiedArea == null) {
            Logger logger = LoggerFactory.getLogger(ImageRenderer.class);
            logger.error(MessageFormatUtil.format(LogMessageConstant.OCCUPIED_AREA_HAS_NOT_BEEN_INITIALIZED, "Drawing won't be performed."));
            return;
        }
        applyMargins(occupiedArea.getBBox(), false);
        applyBorderBox(occupiedArea.getBBox(), getBorders(), false);

        boolean isRelativePosition = isRelativePosition();
        if (isRelativePosition) {
            applyRelativePositioningTranslation(false);
        }

        if (fixedYPosition == null) {
            fixedYPosition = occupiedArea.getBBox().getY() + pivotY;
        }
        if (fixedXPosition == null) {
            fixedXPosition = occupiedArea.getBBox().getX();
        }

        boolean isTagged = drawContext.isTaggingEnabled();
        LayoutTaggingHelper taggingHelper = null;
        boolean isArtifact = false;
        TagTreePointer tagPointer = null;
        if (isTagged) {
            taggingHelper = this.<LayoutTaggingHelper>getProperty(Property.TAGGING_HELPER);
            if (taggingHelper == null) {
                isArtifact = true;
            } else {
                isArtifact = taggingHelper.isArtifact(this);
                if (!isArtifact) {
                    tagPointer = taggingHelper.useAutoTaggingPointerAndRememberItsPosition(this);
                    if (taggingHelper.createTag(this, tagPointer)) {
                        tagPointer.getProperties().addAttributes(0, AccessibleAttributesApplier.getLayoutAttributes(this, tagPointer));
                    }
                }
            }
        }

        beginTransformationIfApplied(drawContext.getCanvas());

        Float angle = this.getPropertyAsFloat(Property.ROTATION_ANGLE);
        if (angle != null) {
            fixedXPosition += rotatedDeltaX;
            fixedYPosition -= rotatedDeltaY;
            drawContext.getCanvas().saveState();
            applyConcatMatrix(drawContext, angle);
        }

        super.draw(drawContext);
        if (angle != null) {
            drawContext.getCanvas().restoreState();
        }

        PdfCanvas canvas = drawContext.getCanvas();
        if (isTagged) {
            if (isArtifact) {
                canvas.openTag(new CanvasArtifact());
            } else {
                canvas.openTag(tagPointer.getTagReference());

            }
        }

        PdfXObject xObject = ((Image) (getModelElement())).getXObject();
        beginElementOpacityApplying(drawContext);
        canvas.addXObject(xObject, matrix[0], matrix[1], matrix[2], matrix[3], (float) fixedXPosition + deltaX, (float) fixedYPosition);

        endElementOpacityApplying(drawContext);
        endTransformationIfApplied(drawContext.getCanvas());
        if (Boolean.TRUE.equals(getPropertyAsBoolean(Property.FLUSH_ON_DRAW))) {
            xObject.flush();
        }

        if (isTagged) {
            canvas.closeTag();
        }

        if (isRelativePosition) {
            applyRelativePositioningTranslation(true);
        }
        applyBorderBox(occupiedArea.getBBox(), getBorders(), true);
        applyMargins(occupiedArea.getBBox(), true);

        if (isTagged && !isArtifact) {
            taggingHelper.finishTaggingHint(this);
            taggingHelper.restoreAutoTaggingPointerPosition(this);
        }
    }

    @Override
    public IRenderer getNextRenderer() {
        return null;
    }

    @Override
    public Rectangle getBorderAreaBBox() {
        applyMargins(initialOccupiedAreaBBox, false);
        applyBorderBox(initialOccupiedAreaBBox, getBorders(), false);

        boolean isRelativePosition = isRelativePosition();
        if (isRelativePosition) {
            applyRelativePositioningTranslation(false);
        }
        applyMargins(initialOccupiedAreaBBox, true);
        applyBorderBox(initialOccupiedAreaBBox, true);
        return initialOccupiedAreaBBox;
    }

    @Override
    protected Rectangle applyPaddings(Rectangle rect, UnitValue[] paddings, boolean reverse) {
        return rect;
    }

    @Override
    public void move(float dxRight, float dyUp) {
        super.move(dxRight, dyUp);
        if (initialOccupiedAreaBBox != null) {
            initialOccupiedAreaBBox.moveRight(dxRight);
            initialOccupiedAreaBBox.moveUp(dyUp);
        }
        if (fixedXPosition != null) {
            fixedXPosition += dxRight;
        }
        if (fixedYPosition != null) {
            fixedYPosition += dyUp;
        }
    }

    @Override
    protected MinMaxWidth getMinMaxWidth() {
        return ((MinMaxWidthLayoutResult) layout(new LayoutContext(new LayoutArea(1, new Rectangle(MinMaxWidthUtils.getInfWidth(), AbstractRenderer.INF))))).getMinMaxWidth();
    }

    protected ImageRenderer autoScale(LayoutArea layoutArea) {
        Rectangle area = layoutArea.getBBox().clone();
        applyMargins(area, false);
        applyBorderBox(area, false);
        // if rotation was applied, width would be equal to the width of rectangle bounding the rotated image
        float angleScaleCoef = imageWidth / (float) width;
        if (width > angleScaleCoef * area.getWidth()) {
            updateHeight(UnitValue.createPointValue(area.getWidth() / (float)width * imageHeight));
            updateWidth(UnitValue.createPointValue(angleScaleCoef * area.getWidth()));
        }

        return this;
    }

    private void calculateImageDimensions(Rectangle layoutBox, AffineTransform t, PdfXObject xObject) {
        width = this.<UnitValue>getProperty(Property.WIDTH) != null ? retrieveWidth(layoutBox.getWidth()) : null;
        Float declaredHeight = retrieveHeight();
        height = declaredHeight;
        if (width == null && height == null) {
            width = imageWidth;
            height = (float) width / imageWidth * imageHeight;
        } else if (width == null) {
            width = (float) height / imageHeight * imageWidth;
        } else if (height == null) {
            height = (float) width / imageWidth * imageHeight;
        }

        Float horizontalScaling = this.getPropertyAsFloat(Property.HORIZONTAL_SCALING, 1f);
        Float verticalScaling = this.getPropertyAsFloat(Property.VERTICAL_SCALING, 1f);


        if (xObject instanceof PdfFormXObject && width != imageWidth) {
            horizontalScaling *= width / imageWidth;
            verticalScaling *= height / imageHeight;
        }

        if (horizontalScaling != 1) {
            if (xObject instanceof PdfFormXObject) {
                t.scale((float) horizontalScaling, 1);
                width = imageWidth * (float) horizontalScaling;
            } else {
                width *= (float) horizontalScaling;
            }
        }
        if (verticalScaling != 1) {
            if (xObject instanceof PdfFormXObject) {
                t.scale(1, (float) verticalScaling);
                height = imageHeight * (float) verticalScaling;
            } else {
                height *= (float) verticalScaling;
            }
        }

        // Constrain width and height according to min/max width
        Float minWidth = retrieveMinWidth(layoutBox.getWidth());
        Float maxWidth = retrieveMaxWidth(layoutBox.getWidth());
        if (null != minWidth && width < minWidth) {
            height *= minWidth / width;
            width = minWidth;
        } else if (null != maxWidth && width > maxWidth) {
            height *= maxWidth / width;
            width = maxWidth;
        }

        // Constrain width and height according to min/max height, which has precedence over width settings
        Float minHeight = retrieveMinHeight();
        Float maxHeight = retrieveMaxHeight();
        if (null != minHeight && height < minHeight) {
            width *= minHeight / height;
            height = minHeight;
        } else if (null != maxHeight && height > maxHeight) {
            width *= maxHeight / height;
            this.height = maxHeight;
        } else if (null != declaredHeight && !height.equals(declaredHeight)) {
            width *= declaredHeight / height;
            height = declaredHeight;
        }
    }

    private void getMatrix(AffineTransform t, float imageItselfScaledWidth, float imageItselfScaledHeight) {
        t.getMatrix(matrix);
        PdfXObject xObject = ((Image) (getModelElement())).getXObject();
        if (xObject instanceof PdfImageXObject) {
            matrix[0] *= imageItselfScaledWidth;
            matrix[1] *= imageItselfScaledWidth;
            matrix[2] *= imageItselfScaledHeight;
            matrix[3] *= imageItselfScaledHeight;
        }
    }

    private float adjustPositionAfterRotation(float angle, float maxWidth, float maxHeight) {
        if (angle != 0) {
            AffineTransform t = AffineTransform.getRotateInstance(angle);
            Point p00 = t.transform(new Point(0, 0), new Point());
            Point p01 = t.transform(new Point(0, (float) height), new Point());
            Point p10 = t.transform(new Point((float) width, 0), new Point());
            Point p11 = t.transform(new Point((float) width, (float) height), new Point());

            double[] xValues = {p01.getX(), p10.getX(), p11.getX()};
            double[] yValues = {p01.getY(), p10.getY(), p11.getY()};

            double minX = p00.getX();
            double minY = p00.getY();
            double maxX = minX;
            double maxY = minY;

            for (double x : xValues) {
                minX = Math.min(minX, x);
                maxX = Math.max(maxX, x);
            }
            for (double y : yValues) {
                minY = Math.min(minY, y);
                maxY = Math.max(maxY, y);
            }

            height = (float) (maxY - minY);
            width = (float) (maxX - minX);
            pivotY = (float) (p00.getY() - minY);

            deltaX = -(float) minX;
        }
        // Rotating image can cause fitting into area problems.
        // So let's find scaling coefficient
        float scaleCoeff = 1;
        if (Boolean.TRUE.equals(getPropertyAsBoolean(Property.AUTO_SCALE))) {
            if (maxWidth / (float) width <  maxHeight / (float) height) {
                scaleCoeff = maxWidth / (float) width;
                height *= maxWidth / (float) width;
                width = maxWidth;
            } else {
                scaleCoeff = maxHeight / (float) height;
                width *= maxHeight / (float) height;
                height = maxHeight;
            }
        } else if (Boolean.TRUE.equals(getPropertyAsBoolean(Property.AUTO_SCALE_WIDTH))) {
            scaleCoeff = maxWidth / (float) width;
            height *= scaleCoeff;
            width = maxWidth;
        } else if (Boolean.TRUE.equals(getPropertyAsBoolean(Property.AUTO_SCALE_HEIGHT))) {
            scaleCoeff = maxHeight / (float) height;
            height = maxHeight;
            width *= scaleCoeff;
        }
        pivotY *= scaleCoeff;
        deltaX *= scaleCoeff;
        return scaleCoeff;
    }

    private void translateImage(float xDistance, float yDistance, AffineTransform t) {
        t.translate(xDistance, yDistance);
        t.getMatrix(matrix);
        if (fixedXPosition != null) {
            fixedXPosition += (float) t.getTranslateX();
        }
        if (fixedYPosition != null) {
            fixedYPosition += (float) t.getTranslateY();
        }
    }

    private void applyConcatMatrix(DrawContext drawContext, Float angle) {
        AffineTransform rotationTransform = AffineTransform.getRotateInstance((float) angle);
        Rectangle rect = getBorderAreaBBox();

        List<Point> rotatedPoints = transformPoints(rectangleToPointsList(rect), rotationTransform);

        float[] shift = calculateShiftToPositionBBoxOfPointsAt(rect.getX(), rect.getY() + rect.getHeight(), rotatedPoints);

        double[] matrix = new double[6];
        rotationTransform.getMatrix(matrix);

        drawContext.getCanvas().concatMatrix(matrix[0], matrix[1], matrix[2], matrix[3], shift[0], shift[1]);
    }

    private void applyRotationLayout(float angle) {
        Border[] borders = getBorders();
        Rectangle rect = getBorderAreaBBox();

        float leftBorderWidth = borders[3] == null ? 0 : borders[3].getWidth();
        float rightBorderWidth = borders[1] == null ? 0 : borders[1].getWidth();
        float topBorderWidth = borders[0] == null ? 0 : borders[0].getWidth();
        if (leftBorderWidth != 0) {
            float gip = (float) Math.sqrt(Math.pow(topBorderWidth, 2) + Math.pow(leftBorderWidth, 2));
            double atan = Math.atan(topBorderWidth / leftBorderWidth);
            if (angle < 0) {
                atan = -atan;
            }
            rotatedDeltaX = Math.abs((float) (gip * Math.cos(angle - atan) - leftBorderWidth));
        } else {
            rotatedDeltaX = 0;
        }

        rect.moveRight(rotatedDeltaX);
        occupiedArea.getBBox().setWidth(occupiedArea.getBBox().getWidth() + rotatedDeltaX);

        if (rightBorderWidth != 0) {
            float gip = (float) Math.sqrt(Math.pow(topBorderWidth, 2) + Math.pow(leftBorderWidth, 2));
            double atan = Math.atan(rightBorderWidth / topBorderWidth);
            if (angle < 0) {
                atan = -atan;
            }
            rotatedDeltaY = Math.abs((float) (gip * Math.cos(angle - atan) - topBorderWidth));
        } else {
            rotatedDeltaY = 0;
        }

        rect.moveDown(rotatedDeltaY);
        if (angle < 0) {
            rotatedDeltaY += rightBorderWidth;
        }
        occupiedArea.getBBox().increaseHeight(rotatedDeltaY);
    }

    @Override
    public float getAscent() {
        return occupiedArea.getBBox().getHeight();
    }

    @Override
    public float getDescent() {
        return 0;
    }
}

⏎ com/itextpdf/layout/renderer/ImageRenderer.java

Or download all of them as a single archive file:

File name: layout-7.1.4-sources.jar
File size: 446816 bytes
Release date: 2018-10-09
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