diff options
Diffstat (limited to 'kviewshell/plugins/djvu/djvumultipage.cpp')
| -rw-r--r-- | kviewshell/plugins/djvu/djvumultipage.cpp | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/kviewshell/plugins/djvu/djvumultipage.cpp b/kviewshell/plugins/djvu/djvumultipage.cpp new file mode 100644 index 00000000..2599cc29 --- /dev/null +++ b/kviewshell/plugins/djvu/djvumultipage.cpp @@ -0,0 +1,357 @@ +/*************************************************************************** + * Copyright (C) 2005 by Stefan Kebekus * + * kebekus@kde.org * + * * + * Copyright (C) 2005 by Wilfried Huss * + * Wilfried.Huss@gmx.at * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * + ***************************************************************************/ + +#include <kaction.h> +#include <kdialogbase.h> +#include <kfiledialog.h> +#include <kparts/genericfactory.h> +#include <kprinter.h> +#include <ktempfile.h> +#include "kvsprefs.h" +#include <qapplication.h> +#include <qpaintdevicemetrics.h> +#include <qprinter.h> +#include <qtooltip.h> + +#include "ByteStream.h" +#include "DjVuToPS.h" +#include "kprintDialogPage_DJVUpageoptions.h" +#include "kprintDialogPage_DJVUconversionoptions.h" +#include "djvumultipage.h" +#include "pageRangeWidget.h" +#include "prefs.h" + +#include "kmessagebox.h" + +typedef KParts::GenericFactory<DjVuMultiPage> DjVuMultiPageFactory; +K_EXPORT_COMPONENT_FACTORY(djvuviewpart, DjVuMultiPageFactory) + + +DjVuMultiPage::DjVuMultiPage(QWidget *parentWidget, const char *widgetName, QObject *parent, + const char *name, const QStringList&) + : KMultiPage(parentWidget, widgetName, parent, name), djvuRenderer(parentWidget) +{ + /* This is kparts wizardry that cannot be understood by man. Simply + change the names to match your implementation. */ + setInstance(DjVuMultiPageFactory::instance()); + djvuRenderer.setName("DjVu renderer"); + + // Render modes + QStringList renderModes; + renderModes.append(i18n("Color")); + renderModes.append(i18n("Black and White")); + renderModes.append(i18n("Show foreground only")); + renderModes.append(i18n("Show background only")); + renderModeAction = new KSelectAction (i18n("Render Mode"), 0, 0, 0, actionCollection(), "render_mode"); + renderModeAction->setItems(renderModes); + + renderModeAction->setCurrentItem(Prefs::renderMode()); + + deletePagesAction = new KAction(i18n("Delete Pages..."), 0, this, SLOT(slotDeletePages()), actionCollection(), "delete_pages"); + + // change the rendermode + connect(renderModeAction, SIGNAL(activated(int)), this, SLOT(setRenderMode(int))); + + /* It is very important that this method is called in the + constructor. Otherwise kmultipage does not know how to render + files, and crashes may result. */ + setRenderer(&djvuRenderer); + + setXMLFile("djvumultipage.rc"); + + enableActions(false); +} + + +DjVuMultiPage::~DjVuMultiPage() +{ + ; +} + + +KAboutData* DjVuMultiPage::createAboutData() +{ + /* You obviously want to change this to match your setup */ + KAboutData* about = new KAboutData("djvumultipage", I18N_NOOP("KDjView"), "0.1", + I18N_NOOP("KViewshell DjVu Plugin."), + KAboutData::License_GPL, + "Wilfried Huss", + I18N_NOOP("This program displays DjVu files.")); + + about->addAuthor ("Stefan Kebekus", + I18N_NOOP("KViewShell plugin"), + "kebekus@kde.org", + "http://www.mi.uni-koeln.de/~kebekus"); + + about->addAuthor ("Wilfried Huss", + I18N_NOOP("DjVu file loading"), + "Wilfried.Huss@gmx.at"); + + return about; +} + +void DjVuMultiPage::enableActions(bool b) +{ + KMultiPage::enableActions(b); + + deletePagesAction->setEnabled(b); +} + +void DjVuMultiPage::setFile(bool r) +{ + enableActions(r); +} + +QStringList DjVuMultiPage::fileFormats() const +{ + /* This list is used in the file selection dialog when the file is + saved */ + QStringList r; + r << i18n("*.djvu|DjVu file (*.djvu)"); + return r; +} + + +void DjVuMultiPage::setRenderMode(int mode) +{ + // Save renderMode for future uses + switch (mode) + { + case Prefs::EnumRenderMode::BlackAndWhite: + Prefs::setRenderMode(Prefs::EnumRenderMode::BlackAndWhite); + + break; + case Prefs::EnumRenderMode::Foreground: + Prefs::setRenderMode(Prefs::EnumRenderMode::Foreground); + + break; + case Prefs::EnumRenderMode::Background: + Prefs::setRenderMode(Prefs::EnumRenderMode::Background); + + break; + default: //Prefs::EnumRenderMode::Color + Prefs::setRenderMode(Prefs::EnumRenderMode::Color); + } + Prefs::writeConfig(); + renderModeChanged(); +} + + +void DjVuMultiPage::slotDeletePages() +{ + if (numberOfPages() == 0) + return; + + KDialogBase dialog( parentWdg, "urldialog", true, i18n("Delete Pages"), KDialogBase::Ok|KDialogBase::Cancel, KDialogBase::Ok, true ); + PageRangeWidget range( 1, numberOfPages(), currentPageNumber(), &dialog, "range widget" ); + QToolTip::add( &range, i18n( "Select the pages you wish to delete." ) ); + dialog.setButtonOK(i18n("Delete Pages")); + dialog.setMainWidget(&range); + if (dialog.exec() != QDialog::Accepted) + return; + + djvuRenderer.deletePages(range.getFrom(), range.getTo()); + + + // ========= + pageCache->deselectText(); + document_history.clear(); + pageCache->clear(); + + generateDocumentWidgets(); + + // Set number of widgets in the thumbnail sidebar + markList()->clear(); + markList()->setNumberOfPages(numberOfPages(), KVSPrefs::showThumbnails()); + + // Set Table of Contents + //@@@@@@@@@@ tableOfContents->setContents(renderer->getBookmarks()); + + // Clear Statusbar + emit setStatusBarText(QString::null); +} + + +void DjVuMultiPage::print() +{ + // Paranoid safety checks + if (djvuRenderer.isEmpty()) + return; + + // Allocate the printer structure + KPrinter *printer = getPrinter(false); + if (printer == 0) + return; + + KPrintDialogPage_DJVUPageOptions *pageOptions = new KPrintDialogPage_DJVUPageOptions(); + if (pageOptions == 0) { + kdError(1223) << "DjVuMultiPage::print(): Cannot allocate new KPrintDialogPage_PageOptions structure" << endl; + delete printer; + return; + } + printer->addDialogPage( pageOptions ); + + KPrintDialogPage_DJVUConversionOptions *conversionOptions = new KPrintDialogPage_DJVUConversionOptions(); + if (pageOptions == 0) { + kdError(1223) << "DjVuMultiPage::print(): Cannot allocate new KPrintDialogPage_ConversionOptions structure" << endl; + delete printer; + return; + } + printer->addDialogPage( conversionOptions ); + + // initialize the printer using the print dialog + if ( printer->setup(parentWdg, i18n("Print %1").arg(m_file.section('/', -1))) ) { + // Now do the printing. + QValueList<int> pageList = printer->pageList(); + if (pageList.isEmpty()) + printer->abort(); + else { + // Printing usually takes a while. This is to keep the GUI + // updated. + qApp->processEvents(); + + // Printing... + DjVuToPS converter; + DjVuToPS::Options &options = converter.options; + + // Set PostScript Language Level, taking 3 as the default + options.set_format(DjVuToPS::Options::PS); + QString op = printer->option( "kde-kdjvu-pslevel" ); + if (op == "1") + options.set_level(1); + else + if (op == "3") + options.set_level(3); + else + options.set_level(2); + + // Set page size orientation + if (printer->option( "kde-kviewshell-rotatepage" ) == "true") + options.set_orientation (DjVuToPS::Options::AUTO); + else + if ( printer->orientation() == KPrinter::Landscape ) + options.set_orientation (DjVuToPS::Options::LANDSCAPE); + else + options.set_orientation (DjVuToPS::Options::PORTRAIT); + + // Set render mode, taking "color" as default + op = printer->option("kde-kdjvu-rendermode"); + if (op == "black-and-white") + options.set_mode(DjVuToPS::Options::BW); + else + if (op == "foreground") + options.set_mode(DjVuToPS::Options::FORE); + else + if (op == "background") + options.set_mode(DjVuToPS::Options::BACK); + else + options.set_mode(DjVuToPS::Options::COLOR); + + // Set Color or Grayscale mode + if (printer->colorMode() == KPrinter::Color) + options.set_color(true); + else + options.set_color(false); + + // Set Zoom + if (printer->option( "kde-kdjvu-fitpage" ) == "true") + options.set_zoom(0); + else + options.set_zoom(100); + + KTempFile tmpPSFile(QString::null, "ps"); + tmpPSFile.close(); + tmpPSFile.setAutoDelete(true); + + if (djvuRenderer.convertToPSFile(converter, tmpPSFile.name(), pageList ) == true) + printer->printFiles( QStringList(tmpPSFile.name()), true ); + else + printer->abort(); + } + delete printer; + } +} + + +bool DjVuMultiPage::isReadWrite() const +{ + return true; +} + + +bool DjVuMultiPage::isModified() const +{ + return djvuRenderer.isModified(); +} + + +void DjVuMultiPage::slotSave() +{ + // Paranoid safety checks + if (djvuRenderer.isEmpty()) + return; + + // Try to guess the proper ending... + QString formats; + QString ending; + int rindex = m_file.findRev("."); + if (rindex == -1) { + ending = QString::null; + formats = QString::null; + } else { + ending = m_file.mid(rindex); // e.g. ".dvi" + formats = fileFormats().grep(ending).join("\n"); + } + + QString fileName = KFileDialog::getSaveFileName(QString::null, formats, 0, i18n("Save File As")); + + if (fileName.isEmpty()) + return; + + // Add the ending to the filename. I hope the user likes it that + // way. + if (!ending.isEmpty() && fileName.find(ending) == -1) + fileName = fileName+ending; + + if (QFile(fileName).exists()) { + int r = KMessageBox::warningContinueCancel(parentWdg, i18n("The file %1\nalready exists. Do you want to overwrite it?").arg(fileName), + i18n("Overwrite File"), i18n("Overwrite")); + if (r == KMessageBox::Cancel) + return; + } + + djvuRenderer.save(fileName); + + /* + if (!djvuRenderer.save(fileName) == false) + KMessageBox::error( parentWdg, + i18n("<qt><strong>File error.</strong> Unable to write to the specified file '%1'. The document is <strong>not</strong> saved.</qt>").arg(fileName), + i18n("File Error")); + */ + + return; +} + + + +#include "djvumultipage.moc" |