diff options
Diffstat (limited to 'src/printsupport/platform/windows/qwindowsprintdevice.cpp')
| -rw-r--r-- | src/printsupport/platform/windows/qwindowsprintdevice.cpp | 520 |
1 files changed, 520 insertions, 0 deletions
diff --git a/src/printsupport/platform/windows/qwindowsprintdevice.cpp b/src/printsupport/platform/windows/qwindowsprintdevice.cpp new file mode 100644 index 0000000000..9445871ed7 --- /dev/null +++ b/src/printsupport/platform/windows/qwindowsprintdevice.cpp @@ -0,0 +1,520 @@ +// Copyright (C) 2014 John Layt <jlayt@kde.org> +// Copyright (C) 2018 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only + +#include "qwindowsprintdevice_p.h" + +#include <QtCore/qdebug.h> + +#ifndef DC_COLLATE +# define DC_COLLATE 22 +#endif + +QT_BEGIN_NAMESPACE + +using WindowsPrinterLookup = QList<QWindowsPrinterInfo>; +Q_GLOBAL_STATIC(WindowsPrinterLookup, windowsDeviceLookup); + +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 LPDEVMODE getDevmode(HANDLE hPrinter, const QString &printerId) +{ + LPWSTR printerIdUtf16 = const_cast<LPWSTR>(reinterpret_cast<LPCWSTR>(printerId.utf16())); + // Allocate the required DEVMODE buffer + LONG dmSize = DocumentProperties(nullptr, hPrinter, printerIdUtf16, nullptr, nullptr, 0); + if (dmSize <= 0) + return nullptr; + LPDEVMODE pDevMode = reinterpret_cast<LPDEVMODE>(malloc(dmSize)); + // Get the default DevMode + LONG result = DocumentProperties(nullptr, hPrinter, printerIdUtf16, pDevMode, nullptr, DM_OUT_BUFFER); + if (result != IDOK) { + free(pDevMode); + pDevMode = nullptr; + } + return pDevMode; +} + +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(const_cast<LPWSTR>(wcharId()), &m_hPrinter, nullptr)) { + 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; + } + QWindowsPrinterInfo m_info; + m_info.m_id = m_id; + m_info.m_name = m_name; + m_info.m_location = m_location; + m_info.m_makeAndModel = m_makeAndModel; + m_info.m_isRemote = m_isRemote; + m_infoIndex = windowsDeviceLookup()->indexOf(m_info); + if (m_infoIndex != -1) { + m_info = windowsDeviceLookup()->at(m_infoIndex); + m_havePageSizes = m_info.m_havePageSizes; + m_pageSizes = m_info.m_pageSizes; + m_haveResolutions = m_info.m_haveResolutions; + m_resolutions = m_info.m_resolutions; + m_haveCopies = m_info.m_haveCopies; + m_supportsMultipleCopies = m_info.m_supportsMultipleCopies; + m_supportsCollateCopies = m_info.m_supportsCollateCopies; + m_haveMinMaxPageSizes = m_info.m_haveMinMaxPageSizes; + m_minimumPhysicalPageSize = m_info.m_minimumPhysicalPageSize; + m_maximumPhysicalPageSize = m_info.m_maximumPhysicalPageSize; + m_supportsCustomPageSizes = m_info.m_supportsCustomPageSizes; + m_haveInputSlots = m_info.m_haveInputSlots; + m_inputSlots = m_info.m_inputSlots; + m_haveOutputBins = m_info.m_haveOutputBins; + m_outputBins = m_info.m_outputBins; + m_haveDuplexModes = m_info.m_haveDuplexModes; + m_duplexModes = m_info.m_duplexModes; + m_haveColorModes = m_info.m_haveColorModes; + m_colorModes = m_info.m_colorModes; + m_infoIndex = windowsDeviceLookup()->indexOf(m_info); + } else { + windowsDeviceLookup()->append(m_info); + m_infoIndex = windowsDeviceLookup()->count() - 1; + } + } + } +} + +QWindowsPrintDevice::~QWindowsPrintDevice() +{ + ClosePrinter(m_hPrinter); +} + +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 + const int paperCount = DeviceCapabilities(wcharId(), nullptr, DC_PAPERNAMES, nullptr, nullptr); + if (paperCount > 0 + && DeviceCapabilities(wcharId(), nullptr, DC_PAPERSIZE, nullptr, nullptr) == paperCount + && DeviceCapabilities(wcharId(), nullptr, DC_PAPERS, nullptr, nullptr) == paperCount) { + + QScopedArrayPointer<wchar_t> paperNames(new wchar_t[paperCount*64]); + QScopedArrayPointer<POINT> winSizes(new POINT[paperCount]); + QScopedArrayPointer<wchar_t> papers(new wchar_t[paperCount]); + + // Get the details and match the default paper size + if (DeviceCapabilities(wcharId(), nullptr, DC_PAPERNAMES, paperNames.data(), nullptr) == paperCount + && DeviceCapabilities(wcharId(), nullptr, DC_PAPERSIZE, + reinterpret_cast<wchar_t *>(winSizes.data()), nullptr) == paperCount + && DeviceCapabilities(wcharId(), nullptr, DC_PAPERS, papers.data(), nullptr) == 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; + QWindowsPrinterInfo *info = windowsDeviceLookup()->data(); + info[m_infoIndex].m_havePageSizes = true; + info[m_infoIndex].m_pageSizes = m_pageSizes; +} + +QPageSize QWindowsPrintDevice::defaultPageSize() const +{ + if (!m_havePageSizes) + loadPageSizes(); + + QPageSize pageSize; + + if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) { + // Get the default paper size + if (pDevMode->dmFields & DM_PAPERSIZE) { + // Find the supported page size that matches, in theory default should be one of them + for (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()); + LPDEVMODE devMode = info->pDevMode; + bool separateDevMode = false; + if (!devMode) { + // GetPrinter() didn't include the DEVMODE. Get it a different way. + devMode = getDevmode(m_hPrinter, m_id); + if (!devMode) + return margins; + separateDevMode = true; + } + + HDC pDC = CreateDC(nullptr, wcharId(), nullptr, 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); + if (separateDevMode) + free(devMode); + DeleteDC(pDC); + } + return margins; +} + +void QWindowsPrintDevice::loadResolutions() const +{ + const int resCount = DeviceCapabilities(wcharId(), nullptr, DC_ENUMRESOLUTIONS, nullptr, nullptr); + if (resCount > 0) { + QScopedArrayPointer<LONG> resolutions(new LONG[resCount*2]); + // Get the details and match the default paper size + if (DeviceCapabilities(wcharId(), nullptr, DC_ENUMRESOLUTIONS, + reinterpret_cast<LPWSTR>(resolutions.data()), nullptr) == resCount) { + for (int i = 0; i < int(resCount * 2); i += 2) + m_resolutions.append(resolutions[i+1]); + } + } + m_haveResolutions = true; + QWindowsPrinterInfo *info = windowsDeviceLookup()->data(); + info[m_infoIndex].m_haveResolutions = true; + info[m_infoIndex].m_resolutions = m_resolutions; +} + +int QWindowsPrintDevice::defaultResolution() const +{ + int resolution = 72; // TODO Set a sensible default? + + if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) { + // Get the default resolution + if (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 +{ + const auto printerId = wcharId(); + const int binCount = DeviceCapabilities(printerId, nullptr, DC_BINS, nullptr, nullptr); + if (binCount > 0 + && DeviceCapabilities(printerId, nullptr, DC_BINNAMES, nullptr, nullptr) == binCount) { + + QScopedArrayPointer<WORD> bins(new WORD[binCount]); + QScopedArrayPointer<wchar_t> binNames(new wchar_t[binCount*24]); + + // Get the details and match the default paper size + if (DeviceCapabilities(printerId, nullptr, DC_BINS, + reinterpret_cast<LPWSTR>(bins.data()), nullptr) == binCount + && DeviceCapabilities(printerId, nullptr, DC_BINNAMES, binNames.data(), + nullptr) == 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(QPrintUtils::paperBinToInputSlot(bins[i], name)); + } + + } + } + + m_haveInputSlots = true; + QWindowsPrinterInfo *info = windowsDeviceLookup()->data(); + info[m_infoIndex].m_haveInputSlots = true; + info[m_infoIndex].m_inputSlots = m_inputSlots; +} + +QPrint::InputSlot QWindowsPrintDevice::defaultInputSlot() const +{ + QPrint::InputSlot inputSlot = QPlatformPrintDevice::defaultInputSlot(); + + if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) { + // Get the default input slot + if (pDevMode->dmFields & DM_DEFAULTSOURCE) { + QPrint::InputSlot tempSlot = + QPrintUtils::paperBinToInputSlot(pDevMode->dmDefaultSource, QString()); + const auto inputSlots = supportedInputSlots(); + for (const QPrint::InputSlot &slot : inputSlots) { + 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; + QWindowsPrinterInfo *info = windowsDeviceLookup()->data(); + info[m_infoIndex].m_haveOutputBins = true; + info[m_infoIndex].m_outputBins = m_outputBins; +} + +void QWindowsPrintDevice::loadDuplexModes() const +{ + m_duplexModes.append(QPrint::DuplexNone); + DWORD duplex = DeviceCapabilities(wcharId(), nullptr, DC_DUPLEX, nullptr, nullptr); + if (int(duplex) == 1) { + // TODO Assume if duplex flag supports both modes + m_duplexModes.append(QPrint::DuplexAuto); + m_duplexModes.append(QPrint::DuplexLongSide); + m_duplexModes.append(QPrint::DuplexShortSide); + } + m_haveDuplexModes = true; + QWindowsPrinterInfo *info = windowsDeviceLookup()->data(); + info[m_infoIndex].m_haveDuplexModes = true; + info[m_infoIndex].m_duplexModes = m_duplexModes; +} + +QPrint::DuplexMode QWindowsPrintDevice::defaultDuplexMode() const +{ + QPrint::DuplexMode duplexMode = QPrint::DuplexNone; + + if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) { + // Get the default duplex mode + if (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(wcharId(), nullptr, DC_COLORDEVICE, nullptr, nullptr); + if (int(color) == 1) + m_colorModes.append(QPrint::Color); + m_haveColorModes = true; + QWindowsPrinterInfo *info = windowsDeviceLookup()->data(); + info[m_infoIndex].m_haveColorModes = true; + info[m_infoIndex].m_colorModes = m_colorModes; +} + +QPrint::ColorMode QWindowsPrintDevice::defaultColorMode() const +{ + if (!m_haveColorModes) + loadColorModes(); + if (!m_colorModes.contains(QPrint::Color)) + return QPrint::GrayScale; + + QPrint::ColorMode colorMode = QPrint::GrayScale; + + if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) { + // Get the default color mode + if (pDevMode->dmFields & DM_COLOR && 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, nullptr, 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, nullptr, 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; + if (GetDefaultPrinter(nullptr, &size) == ERROR_FILE_NOT_FOUND || size < 2) + return QString(); + + QScopedArrayPointer<wchar_t> name(new wchar_t[size]); + GetDefaultPrinter(name.data(), &size); + return QString::fromWCharArray(name.data()); +} + +void QWindowsPrintDevice::loadCopiesSupport() const +{ + auto printerId = wcharId(); + m_supportsMultipleCopies = (DeviceCapabilities(printerId, nullptr, DC_COPIES, nullptr, nullptr) > 1); + m_supportsCollateCopies = DeviceCapabilities(printerId, nullptr, DC_COLLATE, nullptr, nullptr); + m_haveCopies = true; + QWindowsPrinterInfo *info = windowsDeviceLookup()->data(); + info[m_infoIndex].m_haveCopies = true; + info[m_infoIndex].m_supportsMultipleCopies = m_supportsMultipleCopies; + info[m_infoIndex].m_supportsCollateCopies = m_supportsCollateCopies; +} + +bool QWindowsPrintDevice::supportsCollateCopies() const +{ + if (!m_haveCopies) + loadCopiesSupport(); + return m_supportsCollateCopies; +} + +bool QWindowsPrintDevice::supportsMultipleCopies() const +{ + if (!m_haveCopies) + loadCopiesSupport(); + return m_supportsMultipleCopies; +} + +bool QWindowsPrintDevice::supportsCustomPageSizes() const +{ + if (!m_haveMinMaxPageSizes) + loadMinMaxPageSizes(); + return m_supportsCustomPageSizes; +} + +QSize QWindowsPrintDevice::minimumPhysicalPageSize() const +{ + if (!m_haveMinMaxPageSizes) + loadMinMaxPageSizes(); + return m_minimumPhysicalPageSize; +} + +QSize QWindowsPrintDevice::maximumPhysicalPageSize() const +{ + if (!m_haveMinMaxPageSizes) + loadMinMaxPageSizes(); + return m_maximumPhysicalPageSize; +} + +void QWindowsPrintDevice::loadMinMaxPageSizes() const +{ + // Min/Max custom size is in tenths of a millimeter + const qreal multiplier = qt_pointMultiplier(QPageLayout::Millimeter); + auto printerId = wcharId(); + DWORD min = DeviceCapabilities(printerId, nullptr, DC_MINEXTENT, nullptr, nullptr); + m_minimumPhysicalPageSize = QSize((LOWORD(min) / 10.0) * multiplier, (HIWORD(min) / 10.0) * multiplier); + DWORD max = DeviceCapabilities(printerId, nullptr, DC_MAXEXTENT, nullptr, nullptr); + m_maximumPhysicalPageSize = QSize((LOWORD(max) / 10.0) * multiplier, (HIWORD(max) / 10.0) * multiplier); + m_supportsCustomPageSizes = (m_maximumPhysicalPageSize.width() > 0 && m_maximumPhysicalPageSize.height() > 0); + m_haveMinMaxPageSizes = true; + QWindowsPrinterInfo *info = windowsDeviceLookup()->data(); + info[m_infoIndex].m_haveCopies = true; + info[m_infoIndex].m_supportsMultipleCopies = m_supportsMultipleCopies; + info[m_infoIndex].m_supportsCollateCopies = m_supportsCollateCopies; +} + +QT_END_NAMESPACE |