Esempi in C++ (Cpp) per adjustCTM

Esempio n. 1

File: PDFDocumentImage.cpp Progetto: harlanlewis/webkit

void PDFDocumentImage::draw(GraphicsContext* context, const FloatRect& dstRect, const FloatRect& srcRect, ColorSpace, CompositeOperator op, BlendMode)
{
    if (!m_document || m_currentPage == -1)
        return;

    {
        GraphicsContextStateSaver stateSaver(*context);

        context->setCompositeOperation(op);

        float hScale = dstRect.width() / srcRect.width();
        float vScale = dstRect.height() / srcRect.height();

        // Scale and translate so the document is rendered in the correct location,
        // including accounting for the fact that a GraphicsContext is always flipped
        // and doing appropriate flipping.
        CGContextTranslateCTM(context->platformContext(), dstRect.x() - srcRect.x() * hScale, dstRect.y() - srcRect.y() * vScale);
        CGContextScaleCTM(context->platformContext(), hScale, vScale);
        CGContextScaleCTM(context->platformContext(), 1, -1);
        CGContextTranslateCTM(context->platformContext(), 0, -srcRect.height());
        CGContextClipToRect(context->platformContext(), CGRectIntegral(srcRect));

        // Rotate translate image into position according to doc properties.
        adjustCTM(context);

        CGContextTranslateCTM(context->platformContext(), -m_mediaBox.x(), -m_mediaBox.y());
        CGContextDrawPDFPage(context->platformContext(), CGPDFDocumentGetPage(m_document, m_currentPage + 1));
    }

    if (imageObserver())
        imageObserver()->didDraw(this);
}

Esempio n. 2

File: PDFDocumentImage.cpp Progetto: cdaffara/symbiandump-mw4

void PDFDocumentImage::draw(GraphicsContext* context, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator op)
{
    if (!m_document || m_currentPage == -1)
        return;

    context->save();

    context->setCompositeOperation(op);

    float hScale = dstRect.width() / srcRect.width();
    float vScale = dstRect.height() / srcRect.height();

    // Scale and translate so the document is rendered in the correct location,
    // including accounting for the fact that a GraphicsContext is always flipped
    // and doing appropriate flipping.
    CGContextTranslateCTM(context->platformContext(), dstRect.x() - srcRect.x() * hScale, dstRect.y() - srcRect.y() * vScale);
    CGContextScaleCTM(context->platformContext(), hScale, vScale);
    CGContextScaleCTM(context->platformContext(), 1, -1);
    CGContextTranslateCTM(context->platformContext(), 0, -srcRect.height());
    CGContextClipToRect(context->platformContext(), CGRectIntegral(srcRect));

    // Rotate translate image into position according to doc properties.
    adjustCTM(context);

    // Media box may have non-zero origin which we ignore. Pass 1 for the page number.
    CGContextDrawPDFDocument(context->platformContext(), FloatRect(FloatPoint(), m_mediaBox.size()),
        m_document, m_currentPage + 1);
    
    context->restore();

    if (imageObserver())
        imageObserver()->didDraw(this);
}