QPlatformPrintDevice - Add Windows implementation

Add Windows implementation of QPlatformPrintDevice.

Change-Id: I007678cd6d2bdae0728b61cc2796a5c5e5d1578f
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

src/plugins/printsupport/windows/qwindowsprintdevice.cpp

@@ -0,0 +1,472 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 John Layt <jlayt@kde.org>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwindowsprintdevice.h"
+
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+extern qreal qt_pointMultiplier(QPageLayout::Unit unit);
+
+static inline uint qwcsnlen(const wchar_t *str, uint maxlen)
+{
+    uint length = 0;
+    if (str) {
+        while (length < maxlen && *str++)
+            length++;
+    }
+    return length;
+}
+
+static QPrint::InputSlot paperBinToInputSlot(int windowsId, const QString &name)
+{
+    QPrint::InputSlot slot;
+    slot.name = name;
+    int i;
+    for (i = 0; inputSlotMap[i].id != QPrint::CustomInputSlot; ++i) {
+        if (inputSlotMap[i].windowsId == windowsId) {
+            slot.key = inputSlotMap[i].key;
+            slot.id = inputSlotMap[i].id;
+            slot.windowsId = inputSlotMap[i].windowsId;
+            return slot;
+        }
+    }
+    slot.key = inputSlotMap[i].key;
+    slot.id = inputSlotMap[i].id;
+    return slot;
+}
+
+
+QWindowsPrintDevice::QWindowsPrintDevice()
+    : QPlatformPrintDevice(),
+      m_hPrinter(0)
+{
+}
+
+QWindowsPrintDevice::QWindowsPrintDevice(const QString &id)
+    : QPlatformPrintDevice(id),
+      m_hPrinter(0)
+{
+    // First do a fast lookup to see if printer exists, if it does then open it
+    if (!id.isEmpty() && QWindowsPrintDevice::availablePrintDeviceIds().contains(id)) {
+        if (OpenPrinter((LPWSTR)m_id.utf16(), &m_hPrinter, NULL)) {
+            DWORD needed = 0;
+            GetPrinter(m_hPrinter, 2, 0, 0, &needed);
+            QScopedArrayPointer<BYTE> buffer(new BYTE[needed]);
+            if (GetPrinter(m_hPrinter, 2, buffer.data(), needed, &needed)) {
+                PPRINTER_INFO_2 info = reinterpret_cast<PPRINTER_INFO_2>(buffer.data());
+                m_name = QString::fromWCharArray(info->pPrinterName);
+                m_location = QString::fromWCharArray(info->pLocation);
+                m_makeAndModel = QString::fromWCharArray(info->pDriverName); // TODO Check is not available elsewhere
+                m_isRemote = info->Attributes & PRINTER_ATTRIBUTE_NETWORK;
+            }
+            m_supportsMultipleCopies = (DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_COPIES, NULL, NULL) > 1);
+            m_supportsCollateCopies = DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_COLLATE, NULL, NULL);
+            // Min/Max custom size is in tenths of a millimeter
+            const qreal multiplier = qt_pointMultiplier(QPageLayout::Millimeter);
+            DWORD min = DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_MINEXTENT, NULL, NULL);
+            m_minimumPhysicalPageSize = QSize((LOWORD(min) / 10.0) * multiplier, (HIWORD(min) / 10.0) * multiplier);
+            DWORD max = DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_MAXEXTENT, NULL, NULL);
+            m_maximumPhysicalPageSize = QSize((LOWORD(max) / 10.0) * multiplier, (HIWORD(max) / 10.0) * multiplier);
+            m_supportsCustomPageSizes = (m_maximumPhysicalPageSize.width() > 0 && m_maximumPhysicalPageSize.height() > 0);
+        }
+    }
+}
+
+QWindowsPrintDevice::QWindowsPrintDevice(const QWindowsPrintDevice &other)
+    : QPlatformPrintDevice(other)
+{
+    OpenPrinter((LPWSTR)other.m_id.utf16(), &m_hPrinter, NULL);
+}
+
+QWindowsPrintDevice::~QWindowsPrintDevice()
+{
+    ClosePrinter(m_hPrinter);
+}
+
+QWindowsPrintDevice &QWindowsPrintDevice::operator=(const QWindowsPrintDevice &other)
+{
+    OpenPrinter((LPWSTR)other.m_id.utf16(), &m_hPrinter, NULL);
+    return *this;
+}
+
+bool QWindowsPrintDevice::operator==(const QWindowsPrintDevice &other) const
+{
+    return (m_id == other.m_id);
+}
+
+bool QWindowsPrintDevice::isValid() const
+{
+    return m_hPrinter;
+}
+
+bool QWindowsPrintDevice::isDefault() const
+{
+    return m_id == defaultPrintDeviceId();
+}
+
+QPrint::DeviceState QWindowsPrintDevice::state() const
+{
+    DWORD needed = 0;
+    GetPrinter(m_hPrinter, 6, 0, 0, &needed);
+    QScopedArrayPointer<BYTE> buffer(new BYTE[needed]);
+
+    if (GetPrinter(m_hPrinter, 6, buffer.data(), needed, &needed)) {
+        PPRINTER_INFO_6 info = reinterpret_cast<PPRINTER_INFO_6>(buffer.data());
+        // TODO Check mapping
+        if (info->dwStatus == 0
+            || (info->dwStatus & PRINTER_STATUS_WAITING) == PRINTER_STATUS_WAITING
+            || (info->dwStatus & PRINTER_STATUS_POWER_SAVE) == PRINTER_STATUS_POWER_SAVE) {
+            return QPrint::Idle;
+        } else if ((info->dwStatus & PRINTER_STATUS_PRINTING) == PRINTER_STATUS_PRINTING
+                   || (info->dwStatus & PRINTER_STATUS_BUSY) == PRINTER_STATUS_BUSY
+                   || (info->dwStatus & PRINTER_STATUS_INITIALIZING) == PRINTER_STATUS_INITIALIZING
+                   || (info->dwStatus & PRINTER_STATUS_IO_ACTIVE) == PRINTER_STATUS_IO_ACTIVE
+                   || (info->dwStatus & PRINTER_STATUS_PROCESSING) == PRINTER_STATUS_PROCESSING
+                   || (info->dwStatus & PRINTER_STATUS_WARMING_UP) == PRINTER_STATUS_WARMING_UP) {
+            return QPrint::Active;
+        }
+    }
+
+    return QPrint::Error;
+}
+
+void QWindowsPrintDevice::loadPageSizes() const
+{
+    // Get the number of paper sizes and check all 3 attributes have same count
+    DWORD paperCount = DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_PAPERNAMES, NULL, NULL);
+    if (int(paperCount) > 0
+        && DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_PAPERSIZE, NULL, NULL) == paperCount
+        && DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_PAPERS, NULL, NULL) == paperCount) {
+
+        QScopedArrayPointer<wchar_t> paperNames(new wchar_t[paperCount*64]);
+        QScopedArrayPointer<POINT> winSizes(new POINT[paperCount*sizeof(POINT)]);
+        QScopedArrayPointer<wchar_t> papers(new wchar_t[paperCount]);
+
+        // Get the details and match the default paper size
+        if (DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_PAPERNAMES, paperNames.data(), NULL) == paperCount
+            && DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_PAPERSIZE, (wchar_t *)winSizes.data(), NULL) == paperCount
+            && DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_PAPERS, papers.data(), NULL) == paperCount) {
+
+            // Returned size is in tenths of a millimeter
+            const qreal multiplier = qt_pointMultiplier(QPageLayout::Millimeter);
+            for (int i = 0; i < int(paperCount); ++i) {
+                QSize size = QSize(qRound((winSizes[i].x / 10.0) * multiplier), qRound((winSizes[i].y / 10.0) * multiplier));
+                wchar_t *paper = paperNames.data() + (i * 64);
+                QString name = QString::fromWCharArray(paper, qwcsnlen(paper, 64));
+                m_pageSizes.append(createPageSize(papers[i], size, name));
+            }
+
+        }
+    }
+
+    m_havePageSizes = true;
+}
+
+QPageSize QWindowsPrintDevice::defaultPageSize() const
+{
+    if (!m_havePageSizes)
+        loadPageSizes();
+
+    QPageSize pageSize;
+
+    // Allocate the required DEVMODE buffer
+    DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
+    LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
+
+     // Get the default DevMode
+    DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
+
+    // Get the default paper size
+    if (result == IDOK && pDevMode->dmFields & DM_PAPERSIZE) {
+        // Find the supported page size that matches, in theory default should be one of them
+        foreach (const QPageSize &ps, m_pageSizes) {
+            if (ps.windowsId() == pDevMode->dmPaperSize) {
+                pageSize = ps;
+                break;
+            }
+        }
+    }
+
+    // Clean-up
+    free(pDevMode);
+    return pageSize;
+}
+
+QMarginsF QWindowsPrintDevice::printableMargins(const QPageSize &pageSize,
+                                                QPageLayout::Orientation orientation,
+                                                int resolution) const
+{
+    // TODO This is slow, need to cache values or find better way!
+    // Modify the DevMode to get the DC printable margins in device pixels
+    QMarginsF margins = QMarginsF(0, 0, 0, 0);
+    DWORD needed = 0;
+    GetPrinter(m_hPrinter, 2, 0, 0, &needed);
+    QScopedArrayPointer<BYTE> buffer(new BYTE[needed]);
+    if (GetPrinter(m_hPrinter, 2, buffer.data(), needed, &needed)) {
+        PPRINTER_INFO_2 info = reinterpret_cast<PPRINTER_INFO_2>(buffer.data());
+        DEVMODE *devMode = info->pDevMode;
+        HDC pDC = CreateDC(NULL, (LPWSTR)m_id.utf16(), NULL, devMode);
+        if (pageSize.id() == QPageSize::Custom || pageSize.windowsId() <= 0 || pageSize.windowsId() > DMPAPER_LAST) {
+            devMode->dmPaperSize =  0;
+            devMode->dmPaperWidth = pageSize.size(QPageSize::Millimeter).width() * 10.0;
+            devMode->dmPaperLength = pageSize.size(QPageSize::Millimeter).height() * 10.0;
+        } else {
+            devMode->dmPaperSize =  pageSize.windowsId();
+        }
+        devMode->dmPrintQuality = resolution;
+        devMode->dmOrientation = orientation == QPageLayout::Portrait ? DMORIENT_PORTRAIT : DMORIENT_LANDSCAPE;
+        ResetDC(pDC, devMode);
+        const int dpiWidth = GetDeviceCaps(pDC, LOGPIXELSX);
+        const int dpiHeight = GetDeviceCaps(pDC, LOGPIXELSY);
+        const qreal wMult = 72.0 / dpiWidth;
+        const qreal hMult = 72.0 / dpiHeight;
+        const qreal physicalWidth = GetDeviceCaps(pDC, PHYSICALWIDTH) * wMult;
+        const qreal physicalHeight = GetDeviceCaps(pDC, PHYSICALHEIGHT) * hMult;
+        const qreal printableWidth = GetDeviceCaps(pDC, HORZRES) * wMult;
+        const qreal printableHeight = GetDeviceCaps(pDC, VERTRES) * hMult;
+        const qreal leftMargin = GetDeviceCaps(pDC, PHYSICALOFFSETX)* wMult;
+        const qreal topMargin = GetDeviceCaps(pDC, PHYSICALOFFSETY) * hMult;
+        const qreal rightMargin = physicalWidth - leftMargin - printableWidth;
+        const qreal bottomMargin = physicalHeight - topMargin - printableHeight;
+        margins = QMarginsF(leftMargin, topMargin, rightMargin, bottomMargin);
+        ReleaseDC(NULL, pDC);
+    }
+    return margins;
+}
+
+void QWindowsPrintDevice::loadResolutions() const
+{
+    DWORD resCount = DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_ENUMRESOLUTIONS, NULL, NULL);
+    if (int(resCount) > 0) {
+        QScopedArrayPointer<LONG> resolutions(new LONG[resCount*sizeof(LONG)]);
+        // Get the details and match the default paper size
+        if (DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_ENUMRESOLUTIONS, (LPWSTR)resolutions.data(), NULL) == resCount) {
+            for (int i = 0; i < int(resCount); ++i)
+                m_resolutions.append(resolutions[i]);
+        }
+    }
+    m_haveResolutions = true;
+}
+
+int QWindowsPrintDevice::defaultResolution() const
+{
+    int resolution = 72;  // TODO Set a sensible default?
+
+    // Allocate the required DEVMODE buffer
+    DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
+    LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
+
+     // Get the default DevMode
+    DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
+
+    // Get the default resolution
+    if (result == IDOK && pDevMode->dmFields & DM_YRESOLUTION) {
+        if (pDevMode->dmPrintQuality > 0)
+            resolution = pDevMode->dmPrintQuality;
+        else
+            resolution = pDevMode->dmYResolution;
+    }
+
+    // Clean-up
+    free(pDevMode);
+    return resolution;
+}
+
+void QWindowsPrintDevice::loadInputSlots() const
+{
+    DWORD binCount = DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_BINS, NULL, NULL);
+    if (int(binCount) > 0
+        && DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_BINNAMES, NULL, NULL) == binCount) {
+
+        QScopedArrayPointer<WORD> bins(new WORD[binCount*sizeof(WORD)]);
+        QScopedArrayPointer<wchar_t> binNames(new wchar_t[binCount*24]);
+
+        // Get the details and match the default paper size
+        if (DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_BINS, (LPWSTR)bins.data(), NULL) == binCount
+            && DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_BINNAMES, binNames.data(), NULL) == binCount) {
+
+            for (int i = 0; i < int(binCount); ++i) {
+                wchar_t *binName = binNames.data() + (i * 24);
+                QString name = QString::fromWCharArray(binName, qwcsnlen(binName, 24));
+                m_inputSlots.append(paperBinToInputSlot(bins[i], name));
+            }
+
+        }
+    }
+
+    m_haveInputSlots = true;
+}
+
+QPrint::InputSlot QWindowsPrintDevice::defaultInputSlot() const
+{
+    QPrint::InputSlot inputSlot = QPlatformPrintDevice::defaultInputSlot();;
+
+    // Allocate the required DEVMODE buffer
+    DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
+    LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
+
+     // Get the default DevMode
+    DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
+
+    // Get the default input slot
+    if (result == IDOK && pDevMode->dmFields & DM_DEFAULTSOURCE) {
+        QPrint::InputSlot tempSlot = paperBinToInputSlot(pDevMode->dmDefaultSource, QString());
+        foreach (const QPrint::InputSlot &slot, supportedInputSlots()) {
+            if (slot.key == tempSlot.key) {
+                inputSlot = slot;
+                break;
+            }
+        }
+    }
+
+    // Clean-up
+    free(pDevMode);
+    return inputSlot;
+}
+
+void QWindowsPrintDevice::loadOutputBins() const
+{
+    m_outputBins.append(QPlatformPrintDevice::defaultOutputBin());
+    m_haveOutputBins = true;
+}
+
+void QWindowsPrintDevice::loadDuplexModes() const
+{
+    m_duplexModes.append(QPrint::DuplexNone);
+    DWORD duplex = DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_DUPLEX, NULL, NULL);
+    if (int(duplex) == 1) {
+        // TODO Assume if duplex flag supports both modes
+        m_duplexModes.append(QPrint::DuplexLongSide);
+        m_duplexModes.append(QPrint::DuplexShortSide);
+    }
+    m_haveDuplexModes = true;
+}
+
+QPrint::DuplexMode QWindowsPrintDevice::defaultDuplexMode() const
+{
+    QPrint::DuplexMode duplexMode = QPrint::DuplexNone;
+
+    // Allocate the required DEVMODE buffer
+    DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
+    LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
+
+     // Get the default DevMode
+    DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
+
+    // Get the default duplex mode
+    if (result == IDOK && pDevMode->dmFields & DM_DUPLEX) {
+        if (pDevMode->dmDuplex == DMDUP_VERTICAL)
+            duplexMode = QPrint::DuplexLongSide;
+        else if (pDevMode->dmDuplex == DMDUP_HORIZONTAL)
+            duplexMode = QPrint::DuplexShortSide;
+    }
+
+    // Clean-up
+    free(pDevMode);
+    return duplexMode;
+}
+
+void QWindowsPrintDevice::loadColorModes() const
+{
+    m_colorModes.append(QPrint::GrayScale);
+    DWORD color = DeviceCapabilities((LPWSTR)m_id.utf16(), NULL, DC_COLORDEVICE, NULL, NULL);
+    if (int(color) == 1)
+        m_colorModes.append(QPrint::Color);
+    m_haveColorModes = true;
+}
+
+QPrint::ColorMode QWindowsPrintDevice::defaultColorMode() const
+{
+    if (!m_haveColorModes)
+        loadColorModes();
+    if (!m_colorModes.contains(QPrint::Color))
+        return QPrint::GrayScale;
+
+    QPrint::ColorMode colorMode = QPrint::GrayScale;
+
+    // Allocate the required DEVMODE buffer
+    DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
+    LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
+
+     // Get the default DevMode
+    DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
+
+    // Get the default color mode
+    if (result == IDOK && pDevMode->dmFields & DM_COLOR) {
+        if (pDevMode->dmColor == DMCOLOR_COLOR)
+            colorMode = QPrint::Color;
+    }
+
+    // Clean-up
+    free(pDevMode);
+    return colorMode;
+}
+
+QStringList QWindowsPrintDevice::availablePrintDeviceIds()
+{
+    QStringList list;
+    DWORD needed = 0;
+    DWORD returned = 0;
+    if ((!EnumPrinters(PRINTER_ENUM_LOCAL | PRINTER_ENUM_CONNECTIONS, NULL, 4, 0, 0, &needed, &returned) && GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+        || !needed) {
+        return list;
+    }
+    QScopedArrayPointer<BYTE> buffer(new BYTE[needed]);
+    if (!EnumPrinters(PRINTER_ENUM_LOCAL | PRINTER_ENUM_CONNECTIONS, NULL, 4, buffer.data(), needed, &needed, &returned))
+        return list;
+    PPRINTER_INFO_4 infoList = reinterpret_cast<PPRINTER_INFO_4>(buffer.data());
+    for (uint i = 0; i < returned; ++i)
+        list.append(QString::fromWCharArray(infoList[i].pPrinterName));
+    return list;
+}
+
+QString QWindowsPrintDevice::defaultPrintDeviceId()
+{
+    DWORD size = 0;
+    GetDefaultPrinter(NULL, &size);
+    QScopedArrayPointer<wchar_t> name(new wchar_t[size]);
+    GetDefaultPrinter(name.data(), &size);
+    return QString::fromWCharArray(name.data());
+}
+
+QT_END_NAMESPACE

src/plugins/printsupport/windows/qwindowsprintdevice.h

@@ -0,0 +1,115 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 John Layt <jlayt@kde.org>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWINDOWSPRINTDEVICE_H
+#define QWINDOWSPRINTDEVICE_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of internal files.  This header file may change from version to version
+// without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qfeatures.h> // Some feature dependencies might define QT_NO_PRINTER
+#ifndef QT_NO_PRINTER
+
+#include <qpa/qplatformprintdevice.h>
+
+#include <QtCore/qt_windows.h>
+
+QT_BEGIN_NAMESPACE
+
+class QWindowsPrintDevice : public QPlatformPrintDevice
+{
+public:
+    QWindowsPrintDevice();
+    explicit QWindowsPrintDevice(const QString &id);
+    QWindowsPrintDevice(const QWindowsPrintDevice &other);
+    virtual ~QWindowsPrintDevice();
+
+    QWindowsPrintDevice &operator=(const QWindowsPrintDevice &other);
+
+    QWindowsPrintDevice *clone();
+
+    bool operator==(const QWindowsPrintDevice &other) const;
+
+    bool isValid() const Q_DECL_OVERRIDE;
+    bool isDefault() const Q_DECL_OVERRIDE;
+
+    QPrint::DeviceState state() const Q_DECL_OVERRIDE;
+
+    QPageSize defaultPageSize() const Q_DECL_OVERRIDE;
+
+    QMarginsF printableMargins(const QPageSize &pageSize, QPageLayout::Orientation orientation,
+                               int resolution) const Q_DECL_OVERRIDE;
+
+    int defaultResolution() const Q_DECL_OVERRIDE;
+
+    QPrint::InputSlot defaultInputSlot() const Q_DECL_OVERRIDE;
+
+    QPrint::DuplexMode defaultDuplexMode() const Q_DECL_OVERRIDE;
+
+    QPrint::ColorMode defaultColorMode() const Q_DECL_OVERRIDE;
+
+    static QStringList availablePrintDeviceIds();
+    static QString defaultPrintDeviceId();
+
+protected:
+    void loadPageSizes() const Q_DECL_OVERRIDE;
+    void loadResolutions() const Q_DECL_OVERRIDE;
+    void loadInputSlots() const Q_DECL_OVERRIDE;
+    void loadOutputBins() const Q_DECL_OVERRIDE;
+    void loadDuplexModes() const Q_DECL_OVERRIDE;
+    void loadColorModes() const Q_DECL_OVERRIDE;
+
+private:
+    HANDLE m_hPrinter;
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_PRINTER
+#endif // QWINDOWSPRINTDEVICE_H

src/plugins/printsupport/windows/qwindowsprintersupport.cpp

@@ -40,6 +40,7 @@
 ****************************************************************************/
 
 #include "qwindowsprintersupport.h"
+#include "qwindowsprintdevice.h"
 
 #include <QtCore/QList>
 #include <QtCore/QScopedArrayPointer>
@@ -47,6 +48,7 @@
 #include <qprintengine_win_p.h>
 #include <private/qpaintengine_alpha_p.h>
 #include <private/qprinterinfo_p.h>
+#include <private/qprintdevice_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -71,6 +73,21 @@ QPaintEngine *QWindowsPrinterSupport::createPaintEngine(QPrintEngine *engine, QP
     return static_cast<QWin32PrintEngine *>(engine);
 }
 
+QPrintDevice QWindowsPrinterSupport::createPrintDevice(const QString &id)
+{
+    return QPlatformPrinterSupport::createPrintDevice(new QWindowsPrintDevice(id));
+}
+
+QStringList QWindowsPrinterSupport::availablePrintDeviceIds() const
+{
+    return QWindowsPrintDevice::availablePrintDeviceIds();
+}
+
+QString QWindowsPrinterSupport::defaultPrintDeviceId() const
+{
+    return QWindowsPrintDevice::defaultPrintDeviceId();
+}
+
 QList<QPrinter::PaperSize> QWindowsPrinterSupport::supportedPaperSizes(const QPrinterInfo &printerInfo) const
 {
     return QWin32PrintEngine::supportedPaperSizes(printerInfo);

src/plugins/printsupport/windows/qwindowsprintersupport.h

@@ -56,8 +56,14 @@ public:
 
     virtual QPrintEngine *createNativePrintEngine(QPrinter::PrinterMode printerMode);
     virtual QPaintEngine *createPaintEngine(QPrintEngine *printEngine, QPrinter::PrinterMode);
+
+    QPrintDevice createPrintDevice(const QString &id) Q_DECL_OVERRIDE;
+    QStringList availablePrintDeviceIds() const Q_DECL_OVERRIDE;
+    QString defaultPrintDeviceId() const Q_DECL_OVERRIDE;
+
     virtual QList<QPrinter::PaperSize> supportedPaperSizes(const QPrinterInfo &) const;
     virtual QList<QPair<QString, QSizeF> >supportedSizesWithNames(const QPrinterInfo &printerInfo) const;
+
     virtual QList<QPrinterInfo> availablePrinters();
 
 private:

src/plugins/printsupport/windows/windows.pro

@@ -12,10 +12,12 @@ INCLUDEPATH *= $$QT_SOURCE_TREE/src/printsupport/kernel
 
 SOURCES += \
     main.cpp \
-    qwindowsprintersupport.cpp
+    qwindowsprintersupport.cpp \
+    qwindowsprintdevice.cpp \
 
 HEADERS += \
-    qwindowsprintersupport.h
+    qwindowsprintersupport.h \
+    qwindowsprintdevice.h \
 
 OTHER_FILES += windows.json