From: John Layt Date: Fri, 1 Jun 2012 18:49:45 +0000 (+0100) Subject: QtPrintSupport - Add CUPS printer and options queries to plugin X-Git-Tag: 071012110112~497 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=14f45e535b4ef4cf169c3e0db817ac519b51b401;p=profile%2Fivi%2Fqtbase.git QtPrintSupport - Add CUPS printer and options queries to plugin Implement initial support in the CUPS plugin for directly calling CUPS to obtain printer list and basic printer info rather than QCupsSupport. Add api to the plugin to return any options for a printer, usually IPP options as implemented for CUPS, but whatever applies for the host print system. Future changes will add support for returning the PPD options. This api may eventually be added to QPrinterInfo, but not in 5.0. Change-Id: I6c8bae4c9295009599e6ab31382f5fff4c93981f Reviewed-by: Teemu Katajisto Reviewed-by: John Layt --- diff --git a/src/plugins/printsupport/cups/qcupsprintersupport.cpp b/src/plugins/printsupport/cups/qcupsprintersupport.cpp index 83d4068..493e01d 100644 --- a/src/plugins/printsupport/cups/qcupsprintersupport.cpp +++ b/src/plugins/printsupport/cups/qcupsprintersupport.cpp @@ -46,16 +46,26 @@ #include -#include "qcups_p.h" +#include +#ifndef QT_LINUXBASE // LSB merges everything into cups.h +# include +#endif QT_BEGIN_NAMESPACE -QCupsPrinterSupport::QCupsPrinterSupport() : QPlatformPrinterSupport() +QCupsPrinterSupport::QCupsPrinterSupport() : QPlatformPrinterSupport(), + m_cups(QLatin1String("cups"), 2), + m_cupsPrinters(0), + m_cupsPrintersCount(0) { + loadCups(); + loadCupsPrinters(); } QCupsPrinterSupport::~QCupsPrinterSupport() { + if (cupsFreeDests) + cupsFreeDests(m_cupsPrintersCount, m_cupsPrinters); } QPrintEngine *QCupsPrinterSupport::createNativePrintEngine(QPrinter::PrinterMode printerMode) @@ -74,14 +84,63 @@ QList QCupsPrinterSupport::supportedPaperSizes(const QPrint return QCUPSSupport::getCupsPrinterPaperSizes(printerIndex(printerInfo)); } -QList QCupsPrinterSupport::availablePrinters() +void QCupsPrinterSupport::loadCups() { - QList printers; - foreach (const QCUPSSupport::Printer &p, QCUPSSupport::availableUnixPrinters()) { - QPrinterInfo printer = createPrinterInfo(p.name, QString(), QString(), QString(), p.isDefault, p.cupsPrinterIndex); - printers.append(printer); + cupsGetDests = (CupsGetDests) m_cups.resolve("cupsGetDests"); + cupsFreeDests = (CupsFreeDests) m_cups.resolve("cupsFreeDests"); + cupsGetOption = (CupsGetOption) m_cups.resolve("cupsGetOption"); +} + +void QCupsPrinterSupport::loadCupsPrinters() +{ + m_cupsPrintersCount = 0; + m_printers.clear(); + + if (cupsFreeDests) + cupsFreeDests(m_cupsPrintersCount, m_cupsPrinters); + + if (cupsGetDests) + m_cupsPrintersCount = cupsGetDests(&m_cupsPrinters); + + for (int i = 0; i < m_cupsPrintersCount; ++i) { + QString printerName = QString::fromLocal8Bit(m_cupsPrinters[i].name); + if (m_cupsPrinters[i].instance) + printerName += QLatin1Char('/') + QString::fromLocal8Bit(m_cupsPrinters[i].instance); + QString description = cupsOption(i, "printer-info"); + QString location = cupsOption(i, "printer-location"); + QString makeAndModel = cupsOption(i, "printer-make-and-model"); + QPrinterInfo printer = createPrinterInfo(printerName, description, location, makeAndModel, + m_cupsPrinters[i].is_default, i); + m_printers.append(printer); + } +} + +QString QCupsPrinterSupport::printerOption(const QPrinterInfo &printer, const QString &key) const +{ + return cupsOption(printerIndex(printer), key); +} + +QString QCupsPrinterSupport::cupsOption(int i, const QString &key) const +{ + QString value; + if (i > -1 && i < m_cupsPrintersCount && cupsGetOption) + value = cupsGetOption(key.toLocal8Bit(), m_cupsPrinters[i].num_options, m_cupsPrinters[i].options); + return value; +} + +PrinterOptions QCupsPrinterSupport::printerOptions(const QPrinterInfo &printer) const +{ + PrinterOptions options; + int p = printerIndex(printer); + if (p <= -1 || p >= m_cupsPrintersCount) + return options; + int numOptions = m_cupsPrinters[p].num_options; + for (int i = 0; i < numOptions; ++i) { + QString name = m_cupsPrinters[p].options[i].name; + QString value = m_cupsPrinters[p].options[i].value; + options.insert(name, value); } - return printers; + return options; } QT_END_NAMESPACE diff --git a/src/plugins/printsupport/cups/qcupsprintersupport_p.h b/src/plugins/printsupport/cups/qcupsprintersupport_p.h index 13b65a5..8470472 100644 --- a/src/plugins/printsupport/cups/qcupsprintersupport_p.h +++ b/src/plugins/printsupport/cups/qcupsprintersupport_p.h @@ -44,9 +44,18 @@ #include +#include +#include + +#include + QT_BEGIN_HEADER QT_BEGIN_NAMESPACE +typedef int (*CupsGetDests)(cups_dest_t **dests); +typedef void (*CupsFreeDests)(int num_dests, cups_dest_t *dests); +typedef const char* (*CupsGetOption)(const char *name, int num_options, cups_option_t *options); + class QCupsPrinterSupport : public QPlatformPrinterSupport { public: @@ -56,10 +65,21 @@ public: virtual QPrintEngine *createNativePrintEngine(QPrinter::PrinterMode printerMode); virtual QPaintEngine *createPaintEngine(QPrintEngine *printEngine, QPrinter::PrinterMode); virtual QList supportedPaperSizes(const QPrinterInfo &) const; - - virtual QList availablePrinters(); + virtual QString printerOption(const QPrinterInfo &printer, const QString &key) const; + virtual PrinterOptions printerOptions(const QPrinterInfo &printer) const; private: + void loadCups(); + void loadCupsPrinters(); + QString cupsOption(int i, const QString &key) const; + + QLibrary m_cups; + cups_dest_t *m_cupsPrinters; + int m_cupsPrintersCount; + + CupsGetDests cupsGetDests; + CupsFreeDests cupsFreeDests; + CupsGetOption cupsGetOption; }; QT_END_NAMESPACE diff --git a/src/printsupport/kernel/qplatformprintersupport.h b/src/printsupport/kernel/qplatformprintersupport.h index e922b5f..018ec05 100644 --- a/src/printsupport/kernel/qplatformprintersupport.h +++ b/src/printsupport/kernel/qplatformprintersupport.h @@ -53,6 +53,7 @@ #include #include +#include QT_BEGIN_HEADER @@ -60,6 +61,8 @@ QT_BEGIN_NAMESPACE #ifndef QT_NO_PRINTER +typedef QHash PrinterOptions; + class QPrintEngine; class Q_PRINTSUPPORT_EXPORT QPlatformPrinterSupport @@ -76,6 +79,9 @@ public: virtual QPrinterInfo defaultPrinter(); virtual QPrinterInfo printerInfo(const QString &printerName); + virtual QString printerOption(const QPrinterInfo &printer, const QString &key) const; + virtual PrinterOptions printerOptions(const QPrinterInfo &printer) const; + static QPrinter::PaperSize convertQSizeFToPaperSize(const QSizeF &sizef); static QSizeF convertPaperSizeToQSizeF(QPrinter::PaperSize paperSize); diff --git a/src/printsupport/kernel/qplatformprintersupport_qpa.cpp b/src/printsupport/kernel/qplatformprintersupport_qpa.cpp index 0a386ea..b74a84f 100644 --- a/src/printsupport/kernel/qplatformprintersupport_qpa.cpp +++ b/src/printsupport/kernel/qplatformprintersupport_qpa.cpp @@ -107,6 +107,19 @@ QPrinterInfo QPlatformPrinterSupport::printerInfo(const QString &printerName) return QPrinterInfo(); } +QString QPlatformPrinterSupport::printerOption(const QPrinterInfo &printer, const QString &key) const +{ + Q_UNUSED(printer) + Q_UNUSED(key) + return QString(); +} + +PrinterOptions QPlatformPrinterSupport::printerOptions(const QPrinterInfo &printer) const +{ + Q_UNUSED(printer) + return PrinterOptions(); +} + int QPlatformPrinterSupport::printerIndex(const QPrinterInfo &printer) { return printer.d_func()->index;