From e9eeb68a656bd52c4a783dc4247c627c5363209a Mon Sep 17 00:00:00 2001 From: Antonin Stefanutti Date: Thu, 21 May 2015 22:05:47 +0200 Subject: [PATCH] Add support for drawing a hyperlink in QPdfEngine Adds the drawHyperlink method so that clients can draw a hyperlink pointing to the specified URL at the specified rectangle. That new method is to be used by GraphicContext::setURLForRect implementations that want to render anchors as clickable links in PDF documents. Task-number: QTBUG-44563 Change-Id: I7b0c602da37ee157d18115c531ab1b11fe304c13 Reviewed-by: Lars Knoll --- src/gui/painting/qpdf.cpp | 28 ++++++++++++++++++++++++++++ src/gui/painting/qpdf_p.h | 2 ++ 2 files changed, 30 insertions(+) diff --git a/src/gui/painting/qpdf.cpp b/src/gui/painting/qpdf.cpp index 9f1fc31466..eb9cfcac2a 100644 --- a/src/gui/painting/qpdf.cpp +++ b/src/gui/painting/qpdf.cpp @@ -996,6 +996,34 @@ void QPdfEngine::drawTextItem(const QPointF &p, const QTextItem &textItem) *d->currentPage << "Q\n"; } +void QPdfEngine::drawHyperlink(const QRectF &r, const QUrl &url) +{ + Q_D(QPdfEngine); + + const uint annot = d->addXrefEntry(-1); + const QByteArray urlascii = url.toEncoded(); + int len = urlascii.size(); + QVarLengthArray url_esc(0); + for (int j = 0; j < len; j++) { + if (urlascii[j] == '(' || urlascii[j] == ')' || urlascii[j] == '\\') + url_esc.append('\\'); + url_esc.append(urlascii[j]); + } + url_esc.append('\0'); + + char buf[256]; + const QRectF rr = d->pageMatrix().mapRect(r); + d->xprintf("<<\n/Type /Annot\n/Subtype /Link\n/Rect ["); + d->xprintf("%s ", qt_real_to_string(rr.left(), buf)); + d->xprintf("%s ", qt_real_to_string(rr.top(), buf)); + d->xprintf("%s ", qt_real_to_string(rr.right(), buf)); + d->xprintf("%s", qt_real_to_string(rr.bottom(), buf)); + d->xprintf("]\n/Border [0 0 0]\n/A <<\n"); + d->xprintf("/Type /Action\n/S /URI\n/URI (%s)\n", url_esc.constData()); + d->xprintf(">>\n>>\n"); + d->xprintf("endobj\n"); + d->currentPage->annotations.append(annot); +} void QPdfEngine::updateState(const QPaintEngineState &state) { diff --git a/src/gui/painting/qpdf_p.h b/src/gui/painting/qpdf_p.h index 2b50cdc6f7..de30744ca2 100644 --- a/src/gui/painting/qpdf_p.h +++ b/src/gui/painting/qpdf_p.h @@ -188,6 +188,8 @@ public: Qt::ImageConversionFlags flags = Qt::AutoColor) Q_DECL_OVERRIDE; void drawTiledPixmap (const QRectF & rectangle, const QPixmap & pixmap, const QPointF & point) Q_DECL_OVERRIDE; + void drawHyperlink(const QRectF &r, const QUrl &url); + void updateState(const QPaintEngineState &state) Q_DECL_OVERRIDE; int metric(QPaintDevice::PaintDeviceMetric metricType) const;