Examples with BlendMode com.tom_roush.pdfbox.pdmodel.graphics.blend.BlendMode used on opensource projects

Example 1 with BlendMode

use of com.tom_roush.pdfbox.pdmodel.graphics.blend.BlendMode in project PdfBox-Android by TomRoush.

the class PageDrawer method hasBlendMode.

private boolean hasBlendMode(PDTransparencyGroup group, Set<COSBase> groupsDone) {
    if (groupsDone.contains(group.getCOSObject())) {
        // The group was already processed. Avoid endless recursion.
        return false;
    }
    groupsDone.add(group.getCOSObject());
    PDResources resources = group.getResources();
    if (resources == null) {
        return false;
    }
    for (COSName name : resources.getExtGStateNames()) {
        PDExtendedGraphicsState extGState = resources.getExtGState(name);
        if (extGState == null) {
            continue;
        }
        BlendMode blendMode = extGState.getBlendMode();
        if (blendMode != BlendMode.NORMAL) {
            return true;
        }
    }
    // Recursively process nested transparency groups
    for (COSName name : resources.getXObjectNames()) {
        PDXObject xObject;
        try {
            xObject = resources.getXObject(name);
        } catch (IOException ex) {
            continue;
        }
        if (xObject instanceof PDTransparencyGroup && hasBlendMode((PDTransparencyGroup) xObject, groupsDone)) {
            return true;
        }
    }
    return false;
}

Example 2 with BlendMode

use of com.tom_roush.pdfbox.pdmodel.graphics.blend.BlendMode in project PdfBox-Android by TomRoush.

the class PDFRenderer method hasBlendMode.

private boolean hasBlendMode(PDPage page) {
    // check the current resources for blend modes
    PDResources resources = page.getResources();
    if (resources == null) {
        return false;
    }
    for (COSName name : resources.getExtGStateNames()) {
        PDExtendedGraphicsState extGState = resources.getExtGState(name);
        if (extGState == null) {
            // see PDFBOX-3950-23EGDHXSBBYQLKYOKGZUOVYVNE675PRD.pdf
            continue;
        }
        BlendMode blendMode = extGState.getBlendMode();
        if (blendMode != BlendMode.NORMAL) {
            return true;
        }
    }
    return false;
}