Examples with CanvasArtifact com.itextpdf.kernel.pdf.canvas.CanvasArtifact used on opensource projects

Example 1 with CanvasArtifact

use of com.itextpdf.kernel.pdf.canvas.CanvasArtifact in project i7j-pdfsweep by itext.

the class PdfCleanUpTool method drawOverlayText.

private void drawOverlayText(PdfCanvas canvas, String overlayText, Rectangle annotRect, PdfBoolean repeat, PdfString defaultAppearance, int justification) throws IOException {
    Map<String, List> parsedDA;
    try {
        parsedDA = parseDAParam(defaultAppearance);
    } catch (NullPointerException npe) {
        throw new PdfException(CleanupExceptionMessageConstant.DEFAULT_APPEARANCE_NOT_FOUND);
    }
    PdfFont font;
    float fontSize = 12;
    List fontArgs = parsedDA.get("Tf");
    PdfDictionary formDictionary = pdfDocument.getCatalog().getPdfObject().getAsDictionary(PdfName.AcroForm);
    if (fontArgs != null && formDictionary != null) {
        font = getFontFromAcroForm((PdfName) fontArgs.get(0));
        fontSize = ((PdfNumber) fontArgs.get(1)).floatValue();
    } else {
        font = PdfFontFactory.createFont();
    }
    if (pdfDocument.isTagged()) {
        canvas.openTag(new CanvasArtifact());
    }
    Canvas modelCanvas = new Canvas(canvas, annotRect, false);
    Paragraph p = new Paragraph(overlayText).setFont(font).setFontSize(fontSize).setMargin(0);
    TextAlignment textAlignment = TextAlignment.LEFT;
    switch(justification) {
        case 1:
            textAlignment = TextAlignment.CENTER;
            break;
        case 2:
            textAlignment = TextAlignment.RIGHT;
            break;
        default:
    }
    p.setTextAlignment(textAlignment);
    List strokeColorArgs = parsedDA.get("StrokeColor");
    if (strokeColorArgs != null) {
        p.setStrokeColor(getColor(strokeColorArgs));
    }
    List fillColorArgs = parsedDA.get("FillColor");
    if (fillColorArgs != null) {
        p.setFontColor(getColor(fillColorArgs));
    }
    modelCanvas.add(p);
    if (repeat != null && repeat.getValue()) {
        boolean hasFull = modelCanvas.getRenderer().hasProperty(Property.FULL);
        boolean isFull = hasFull ? (boolean) modelCanvas.getRenderer().getPropertyAsBoolean(Property.FULL) : false;
        while (!isFull) {
            p.add(overlayText);
            LayoutArea previousArea = modelCanvas.getRenderer().getCurrentArea().clone();
            modelCanvas.relayout();
            if (modelCanvas.getRenderer().getCurrentArea().equals(previousArea)) {
                // Avoid infinite loop. This might be caused by the fact that the font does not support the text we want to show
                break;
            }
            hasFull = modelCanvas.getRenderer().hasProperty(Property.FULL);
            isFull = hasFull ? (boolean) modelCanvas.getRenderer().getPropertyAsBoolean(Property.FULL) : false;
        }
    }
    modelCanvas.getRenderer().flush();
    if (pdfDocument.isTagged()) {
        canvas.closeTag();
    }
}

Example 2 with CanvasArtifact

use of com.itextpdf.kernel.pdf.canvas.CanvasArtifact in project i7j-pdfsweep by itext.

the class PdfCleanUpTool method addColoredRectangle.

/**
 * Draws a colored rectangle on the PdfCanvas correponding to a PdfCleanUpLocation.
 *
 * @param canvas the PdfCanvas on which to draw
 * @param location the PdfCleanUpLocation
 */
private void addColoredRectangle(PdfCanvas canvas, PdfCleanUpLocation location) {
    if (pdfDocument.isTagged()) {
        canvas.openTag(new CanvasArtifact());
    }
    // To avoid the float calculation precision differences in Java and .Net,
    // the values of rectangles to be drawn are rounded
    float x = (float) (Math.floor(location.getRegion().getX() * 2.0) / 2.0);
    float y = (float) (Math.floor(location.getRegion().getY() * 2.0) / 2.0);
    float width = (float) (Math.floor(location.getRegion().getWidth() * 2.0) / 2.0);
    float height = (float) (Math.floor(location.getRegion().getHeight() * 2.0) / 2.0);
    Rectangle rect = new Rectangle(x, y, width, height);
    canvas.saveState().setFillColor(location.getCleanUpColor()).rectangle(rect).fill().restoreState();
    if (pdfDocument.isTagged()) {
        canvas.closeTag();
    }
}

Example 3 with CanvasArtifact

use of com.itextpdf.kernel.pdf.canvas.CanvasArtifact in project i7j-pdfsweep by itext.

the class PdfCleanUpTool method drawRolloverAppearance.

private void drawRolloverAppearance(PdfCanvas canvas, PdfStream redactRolloverAppearance, Rectangle annotRect, List<Rectangle> cleanedRegions) {
    if (pdfDocument.isTagged()) {
        canvas.openTag(new CanvasArtifact());
    }
    canvas.saveState();
    for (Rectangle rect : cleanedRegions) {
        canvas.rectangle(rect.getLeft(), rect.getBottom(), rect.getWidth(), rect.getHeight());
    }
    canvas.clip().endPath();
    PdfFormXObject formXObject = new PdfFormXObject(redactRolloverAppearance);
    canvas.addXObjectWithTransformationMatrix(formXObject, 1, 0, 0, 1, annotRect.getLeft(), annotRect.getBottom());
    canvas.restoreState();
    if (pdfDocument.isTagged()) {
        canvas.closeTag();
    }
}