first version of a public API to generate PDFs

The class is required to be able to move the printing
subsystem out into a module of it's own.

Change-Id: I80703b8a8725504c7e6884a34f76e0735efcf95a
Reviewed-on: http://codereview.qt.nokia.com/3200
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>

3 files changed, 193 insertions, 0 deletions

diff --git a/src/gui/painting/painting.pri b/src/gui/painting/painting.pri
index 1d359ca88c..2925d6acce 100644
--- a/src/gui/painting/painting.pri
+++ b/src/gui/painting/painting.pri
@@ -24,6 +24,7 @@ HEADERS += \
         painting/qvectorpath_p.h \
         painting/qpathclipper_p.h \
         painting/qpdf_p.h \
+        painting/qpdfwriter.h \
         painting/qpen.h \
         painting/qpolygon.h \
         painting/qpolygonclipper_p.h \
@@ -64,6 +65,7 @@ SOURCES += \
         painting/qpainterpath.cpp \
         painting/qpathclipper.cpp \
         painting/qpdf.cpp \
+        painting/qpdfwriter.cpp \
         painting/qpen.cpp \
         painting/qpolygon.cpp \
         painting/qprintengine_pdf.cpp \
diff --git a/src/gui/painting/qpdfwriter.cpp b/src/gui/painting/qpdfwriter.cpp
new file mode 100644
index 0000000000..21bce38804
--- /dev/null
+++ b/src/gui/painting/qpdfwriter.cpp
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qpdfwriter.h>
+#include <QtCore/private/qobject_p.h>
+#include "private/qprintengine_pdf_p.h"
+#include <QtCore/qfile.h>
+
+
+class QPdfWriterPrivate : public QObjectPrivate
+{
+public:
+    QPdfWriterPrivate()
+        : QObjectPrivate()
+    {
+        engine = new QPdfEngine(QPrinter::HighResolution);
+        output = 0;
+    }
+    ~QPdfWriterPrivate()
+    {
+        delete engine;
+        delete output;
+    }
+
+    QPdfEngine *engine;
+    QFile *output;
+};
+
+QPdfWriter::QPdfWriter(const QString &filename)
+    : QObject(*new QPdfWriterPrivate)
+{
+    Q_D(QPdfWriter);
+
+    d->engine->setProperty(QPrintEngine::PPK_OutputFileName, filename);
+}
+
+QPdfWriter::QPdfWriter(QIODevice *device)
+    : QObject(*new QPdfWriterPrivate)
+{
+    Q_D(QPdfWriter);
+
+    // ####
+//    d->engine->setDevice(device);
+}
+
+QPdfWriter::~QPdfWriter()
+{
+
+}
+
+QPaintEngine *QPdfWriter::paintEngine() const
+{
+    Q_D(const QPdfWriter);
+
+    return d->engine;
+}
+
+/*!
+    \internal
+
+    Returns the metric for the given \a id.
+*/
+int QPdfWriter::metric(PaintDeviceMetric id) const
+{
+    Q_D(const QPdfWriter);
+    return d->engine->metric(id);
+}
+
+void QPdfWriter::newPage()
+{
+    Q_D(QPdfWriter);
+
+    d->engine->newPage();
+}
diff --git a/src/gui/painting/qpdfwriter.h b/src/gui/painting/qpdfwriter.h
new file mode 100644
index 0000000000..4493e58f34
--- /dev/null
+++ b/src/gui/painting/qpdfwriter.h
@@ -0,0 +1,79 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPDFWRITER_H
+#define QPDFWRITER_H
+
+#include <QtCore/qobject.h>
+#include <QtCore/qiodevice.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QPdfWriterPrivate;
+
+class Q_GUI_EXPORT QPdfWriter : public QObject, public QPaintDevice
+{
+    Q_OBJECT
+public:
+    QPdfWriter(const QString &filename);
+    QPdfWriter(QIODevice *device);
+    ~QPdfWriter();
+
+    void newPage();
+
+protected:
+    QPaintEngine *paintEngine() const;
+    int metric(PaintDeviceMetric id) const;
+
+private:
+    Q_DISABLE_COPY(QPdfWriter)
+    Q_DECLARE_PRIVATE(QPdfWriter)
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif