/qtopiacore/qt/src/gui/painting/qcups.cpp
C++ | 398 lines | 294 code | 53 blank | 51 comment | 53 complexity | bae2255bacc1d2569974ab738e8b5e10 MD5 | raw file
Possible License(s): AGPL-1.0, GPL-2.0, LGPL-2.1, LGPL-3.0, BSD-3-Clause, GPL-3.0
- /****************************************************************************
- **
- ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtGui module of the Qt Toolkit.
- **
- ** $QT_BEGIN_LICENSE:LGPL$
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- ** 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, Nokia gives you certain
- ** additional rights. These rights are described in the Nokia Qt LGPL
- ** Exception version 1.0, 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.
- **
- ** If you are unsure which license is appropriate for your use, please
- ** contact the sales department at qt-sales@nokia.com.
- ** $QT_END_LICENSE$
- **
- ****************************************************************************/
- #include <qdebug.h>
- #include "qcups_p.h"
- #ifndef QT_NO_CUPS
- #ifndef QT_LINUXBASE // LSB merges everything into cups.h
- # include <cups/language.h>
- #endif
- #include <qtextcodec.h>
- QT_BEGIN_NAMESPACE
- typedef int (*CupsGetDests)(cups_dest_t **dests);
- typedef void (*CupsFreeDests)(int num_dests, cups_dest_t *dests);
- typedef const char* (*CupsGetPPD)(const char *printer);
- typedef int (*CupsMarkOptions)(ppd_file_t *ppd, int num_options, cups_option_t *options);
- typedef ppd_file_t* (*PPDOpenFile)(const char *filename);
- typedef void (*PPDMarkDefaults)(ppd_file_t *ppd);
- typedef int (*PPDMarkOption)(ppd_file_t *ppd, const char *keyword, const char *option);
- typedef void (*PPDClose)(ppd_file_t *ppd);
- typedef int (*PPDMarkOption)(ppd_file_t *ppd, const char *keyword, const char *option);
- typedef void (*CupsFreeOptions)(int num_options, cups_option_t *options);
- typedef void (*CupsSetDests)(int num_dests, cups_dest_t *dests);
- typedef cups_lang_t* (*CupsLangGet)(const char *language);
- typedef const char* (*CupsLangEncoding)(cups_lang_t *language);
- typedef int (*CupsAddOption)(const char *name, const char *value, int num_options, cups_option_t **options);
- typedef int (*CupsTempFd)(char *name, int len);
- typedef int (*CupsPrintFile)(const char * name, const char * filename, const char * title, int num_options, cups_option_t * options);
- static bool cupsLoaded = false;
- static int qt_cups_num_printers = 0;
- static CupsGetDests _cupsGetDests = 0;
- static CupsFreeDests _cupsFreeDests = 0;
- static CupsGetPPD _cupsGetPPD = 0;
- static PPDOpenFile _ppdOpenFile = 0;
- static PPDMarkDefaults _ppdMarkDefaults = 0;
- static PPDClose _ppdClose = 0;
- static CupsMarkOptions _cupsMarkOptions = 0;
- static PPDMarkOption _ppdMarkOption = 0;
- static CupsFreeOptions _cupsFreeOptions = 0;
- static CupsSetDests _cupsSetDests = 0;
- static CupsLangGet _cupsLangGet = 0;
- static CupsLangEncoding _cupsLangEncoding = 0;
- static CupsAddOption _cupsAddOption = 0;
- static CupsTempFd _cupsTempFd = 0;
- static CupsPrintFile _cupsPrintFile = 0;
- static void resolveCups()
- {
- QLibrary cupsLib(QLatin1String("cups"), 2);
- if(cupsLib.load()) {
- _cupsGetDests = (CupsGetDests) cupsLib.resolve("cupsGetDests");
- _cupsFreeDests = (CupsFreeDests) cupsLib.resolve("cupsFreeDests");
- _cupsGetPPD = (CupsGetPPD) cupsLib.resolve("cupsGetPPD");
- _cupsLangGet = (CupsLangGet) cupsLib.resolve("cupsLangGet");
- _cupsLangEncoding = (CupsLangEncoding) cupsLib.resolve("cupsLangEncoding");
- _ppdOpenFile = (PPDOpenFile) cupsLib.resolve("ppdOpenFile");
- _ppdMarkDefaults = (PPDMarkDefaults) cupsLib.resolve("ppdMarkDefaults");
- _ppdClose = (PPDClose) cupsLib.resolve("ppdClose");
- _cupsMarkOptions = (CupsMarkOptions) cupsLib.resolve("cupsMarkOptions");
- _ppdMarkOption = (PPDMarkOption) cupsLib.resolve("ppdMarkOption");
- _cupsFreeOptions = (CupsFreeOptions) cupsLib.resolve("cupsFreeOptions");
- _cupsSetDests = (CupsSetDests) cupsLib.resolve("cupsSetDests");
- _cupsAddOption = (CupsAddOption) cupsLib.resolve("cupsAddOption");
- _cupsTempFd = (CupsTempFd) cupsLib.resolve("cupsTempFd");
- _cupsPrintFile = (CupsPrintFile) cupsLib.resolve("cupsPrintFile");
- if (_cupsGetDests && _cupsFreeDests) {
- cups_dest_t *printers;
- int num_printers = _cupsGetDests(&printers);
- if (num_printers)
- _cupsFreeDests(num_printers, printers);
- qt_cups_num_printers = num_printers;
- }
- }
- cupsLoaded = true;
- }
- // ================ CUPS Support class ========================
- QCUPSSupport::QCUPSSupport()
- :
- prnCount(0),
- printers(0),
- page_sizes(0),
- currPrinterIndex(0),
- currPPD(0)
- {
- if (!cupsLoaded)
- resolveCups();
- // getting all available printers
- if (!isAvailable())
- return;
- prnCount = _cupsGetDests(&printers);
- for (int i = 0; i < prnCount; ++i) {
- if (printers[i].is_default) {
- currPrinterIndex = i;
- setCurrentPrinter(i);
- break;
- }
- }
- #ifndef QT_NO_TEXTCODEC
- cups_lang_t *cupsLang = _cupsLangGet(0);
- codec = QTextCodec::codecForName(_cupsLangEncoding(cupsLang));
- if (!codec)
- codec = QTextCodec::codecForLocale();
- #endif
- }
- QCUPSSupport::~QCUPSSupport()
- {
- if (currPPD)
- _ppdClose(currPPD);
- if (prnCount)
- _cupsFreeDests(prnCount, printers);
- }
- int QCUPSSupport::availablePrintersCount() const
- {
- return prnCount;
- }
- const cups_dest_t* QCUPSSupport::availablePrinters() const
- {
- return printers;
- }
- const ppd_file_t* QCUPSSupport::currentPPD() const
- {
- return currPPD;
- }
- const ppd_file_t* QCUPSSupport::setCurrentPrinter(int index)
- {
- Q_ASSERT(index >= 0 && index <= prnCount);
- if (index == prnCount)
- return 0;
- currPrinterIndex = index;
- if (currPPD)
- _ppdClose(currPPD);
- currPPD = 0;
- page_sizes = 0;
- const char *ppdFile = _cupsGetPPD(printers[index].name);
- if (!ppdFile)
- return 0;
- currPPD = _ppdOpenFile(ppdFile);
- unlink(ppdFile);
- // marking default options
- _ppdMarkDefaults(currPPD);
- // marking options explicitly set
- _cupsMarkOptions(currPPD, printers[currPrinterIndex].num_options, printers[currPrinterIndex].options);
- // getting pointer to page sizes
- page_sizes = ppdOption("PageSize");
- return currPPD;
- }
- int QCUPSSupport::currentPrinterIndex() const
- {
- return currPrinterIndex;
- }
- bool QCUPSSupport::isAvailable()
- {
- if(!cupsLoaded)
- resolveCups();
- return _cupsGetDests &&
- _cupsFreeDests &&
- _cupsGetPPD &&
- _ppdOpenFile &&
- _ppdMarkDefaults &&
- _ppdClose &&
- _cupsMarkOptions &&
- _ppdMarkOption &&
- _cupsFreeOptions &&
- _cupsSetDests &&
- _cupsLangGet &&
- _cupsLangEncoding &&
- _cupsAddOption &&
- (qt_cups_num_printers > 0);
- }
- const ppd_option_t* QCUPSSupport::ppdOption(const char *key) const
- {
- if (currPPD) {
- for (int gr = 0; gr < currPPD->num_groups; ++gr) {
- for (int opt = 0; opt < currPPD->groups[gr].num_options; ++opt) {
- if (qstrcmp(currPPD->groups[gr].options[opt].keyword, key) == 0)
- return &currPPD->groups[gr].options[opt];
- }
- }
- }
- return 0;
- }
- const cups_option_t* QCUPSSupport::printerOption(const QString &key) const
- {
- for (int i = 0; i < printers[currPrinterIndex].num_options; ++i) {
- if (QLatin1String(printers[currPrinterIndex].options[i].name) == key)
- return &printers[currPrinterIndex].options[i];
- }
- return 0;
- }
- const ppd_option_t* QCUPSSupport::pageSizes() const
- {
- return page_sizes;
- }
- int QCUPSSupport::markOption(const char* name, const char* value)
- {
- return _ppdMarkOption(currPPD, name, value);
- }
- void QCUPSSupport::saveOptions(QList<const ppd_option_t*> options, QList<const char*> markedOptions)
- {
- int oldOptionCount = printers[currPrinterIndex].num_options;
- cups_option_t* oldOptions = printers[currPrinterIndex].options;
- int newOptionCount = 0;
- cups_option_t* newOptions = 0;
- // copying old options that are not on the new list
- for (int i = 0; i < oldOptionCount; ++i) {
- bool contains = false;
- for (int j = 0; j < options.count(); ++j) {
- if (qstrcmp(options.at(j)->keyword, oldOptions[i].name) == 0) {
- contains = true;
- break;
- }
- }
- if (!contains) {
- newOptionCount = _cupsAddOption(oldOptions[i].name, oldOptions[i].value, newOptionCount, &newOptions);
- }
- }
- // we can release old option list
- _cupsFreeOptions(oldOptionCount, oldOptions);
- // adding marked options
- for (int i = 0; i < markedOptions.count(); ++i) {
- const char* name = markedOptions.at(i);
- ++i;
- newOptionCount = _cupsAddOption(name, markedOptions.at(i), newOptionCount, &newOptions);
- }
- // placing the new option list
- printers[currPrinterIndex].num_options = newOptionCount;
- printers[currPrinterIndex].options = newOptions;
- // saving new default values
- _cupsSetDests(prnCount, printers);
- }
- QRect QCUPSSupport::paperRect(const char *choice) const
- {
- if (!currPPD)
- return QRect();
- for (int i = 0; i < currPPD->num_sizes; ++i) {
- if (qstrcmp(currPPD->sizes[i].name, choice) == 0)
- return QRect(0, 0, qRound(currPPD->sizes[i].width), qRound(currPPD->sizes[i].length));
- }
- return QRect();
- }
- QRect QCUPSSupport::pageRect(const char *choice) const
- {
- if (!currPPD)
- return QRect();
- for (int i = 0; i < currPPD->num_sizes; ++i) {
- if (qstrcmp(currPPD->sizes[i].name, choice) == 0)
- return QRect(qRound(currPPD->sizes[i].left),
- qRound(currPPD->sizes[i].length - currPPD->sizes[i].top),
- qRound(currPPD->sizes[i].right - currPPD->sizes[i].left),
- qRound(currPPD->sizes[i].top - currPPD->sizes[i].bottom));
- }
- return QRect();
- }
- QStringList QCUPSSupport::options() const
- {
- QStringList list;
- collectMarkedOptions(list);
- return list;
- }
- bool QCUPSSupport::printerHasPPD(const char *printerName)
- {
- if (!isAvailable())
- return false;
- return _cupsGetPPD(printerName) != 0;
- }
- QString QCUPSSupport::unicodeString(const char *s)
- {
- #ifndef QT_NO_TEXTCODEC
- return codec->toUnicode(s);
- #else
- return QLatin1String(s);
- #endif
- }
- void QCUPSSupport::collectMarkedOptions(QStringList& list, const ppd_group_t* group) const
- {
- if (group == 0) {
- if (!currPPD)
- return;
- for (int i = 0; i < currPPD->num_groups; ++i) {
- collectMarkedOptions(list, &currPPD->groups[i]);
- collectMarkedOptionsHelper(list, &currPPD->groups[i]);
- }
- } else {
- for (int i = 0; i < group->num_subgroups; ++i)
- collectMarkedOptionsHelper(list, &group->subgroups[i]);
- }
- }
- void QCUPSSupport::collectMarkedOptionsHelper(QStringList& list, const ppd_group_t* group) const
- {
- for (int i = 0; i < group->num_options; ++i) {
- for (int j = 0; j < group->options[i].num_choices; ++j) {
- if (group->options[i].choices[j].marked == 1 && qstrcmp(group->options[i].choices[j].choice, group->options[i].defchoice) != 0)
- list << QString::fromLocal8Bit(group->options[i].keyword) << QString::fromLocal8Bit(group->options[i].choices[j].choice);
- }
- }
- }
- QPair<int, QString> QCUPSSupport::tempFd()
- {
- char filename[512];
- int fd = _cupsTempFd(filename, 512);
- return QPair<int, QString>(fd, QString::fromLocal8Bit(filename));
- }
- // Prints the given file and returns a job id.
- int QCUPSSupport::printFile(const char * printerName, const char * filename, const char * title,
- int num_options, cups_option_t * options)
- {
- return _cupsPrintFile(printerName, filename, title, num_options, options);
- }
- QT_END_NAMESPACE
- #endif // QT_NO_CUPS