mirror of
https://invent.kde.org/graphics/okular
synced 2024-10-13 03:12:22 +00:00
445 lines
13 KiB
C++
445 lines
13 KiB
C++
// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; c-brace-offset: 0; -*-
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#include <config.h>
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#include "kdvi_multipage.h"
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#include "dviFile.h"
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#include "dviPageCache.h"
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#include "dviWidget.h"
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#include "kprinterwrapper.h"
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#include "kvs_debug.h"
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#include "optionDialogFontsWidget.h"
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#include "optionDialogSpecialWidget.h"
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#include "performanceMeasurement.h"
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#include "prefs.h"
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#include <kaboutdata.h>
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#include <kaction.h>
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#include <kconfigdialog.h>
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#include <kfiledialog.h>
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#include <kglobal.h>
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#include <klocale.h>
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#include <kmessagebox.h>
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#include <kparts/genericfactory.h>
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#include <kstdaction.h>
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#include <ktip.h>
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#include <QLabel>
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#include <QTemporaryFile>
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#include <QTimer>
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//#define KDVI_MULTIPAGE_DEBUG
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#ifdef PERFORMANCE_MEASUREMENT
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// These objects are explained in the file "performanceMeasurement.h"
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QTime performanceTimer;
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int performanceFlag = 0;
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#endif
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typedef KParts::GenericFactory<KDVIMultiPage> KDVIMultiPageFactory;
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K_EXPORT_COMPONENT_FACTORY(kdvipart, KDVIMultiPageFactory)
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KDVIMultiPage::KDVIMultiPage(QWidget *parentWidget, const char *widgetName, QObject *parent,
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const char *name, const QStringList& args)
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: KMultiPage(parentWidget, widgetName, parent, name), DVIRenderer(parentWidget)
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{
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Q_UNUSED(args);
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#ifdef PERFORMANCE_MEASUREMENT
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performanceTimer.start();
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#endif
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searchUsed = false;
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setInstance(KDVIMultiPageFactory::instance());
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// Points to the same object as renderer to avoid downcasting.
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// FIXME: Remove when the API of the Renderer-class is finished.
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DVIRenderer.setName("DVI renderer");
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setRenderer(&DVIRenderer);
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docInfoAction = new KAction(i18n("Document &Info"), "info", 0, &DVIRenderer, SLOT(showInfo()), actionCollection(), "info_dvi");
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embedPSAction = new KAction(i18n("Embed External PostScript Files..."), 0, this, SLOT(slotEmbedPostScript()), actionCollection(), "embed_postscript");
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new KAction(i18n("Enable All Warnings && Messages"), 0, this, SLOT(doEnableWarnings()), actionCollection(), "enable_msgs");
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exportPSAction = new KAction(i18n("PostScript..."), 0, &DVIRenderer, SLOT(exportPS()), actionCollection(), "export_postscript");
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exportPDFAction = new KAction(i18n("PDF..."), 0, &DVIRenderer, SLOT(exportPDF()), actionCollection(), "export_pdf");
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KStdAction::tipOfDay(this, SLOT(showTip()), actionCollection(), "help_tipofday");
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setXMLFile("kdvi_part.rc");
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preferencesChanged();
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enableActions(false);
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// Show tip of the day, when the first main window is shown.
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QTimer::singleShot(0,this,SLOT(showTipOnStart()));
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}
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KDVIMultiPage::~KDVIMultiPage()
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{
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delete docInfoAction;
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delete embedPSAction;
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delete exportPSAction;
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delete exportPDFAction;
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Prefs::writeConfig();
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}
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KAboutData* KDVIMultiPage::createAboutData()
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{
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KAboutData* about = new KAboutData("kdvi", I18N_NOOP("KDVI"), "1.3",
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I18N_NOOP("A previewer for Device Independent files (DVI files) produced by the TeX typesetting system."),
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KAboutData::License_GPL,
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"Markku Hinhala, Stephan Kebekus",
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I18N_NOOP("This program displays Device Independent (DVI) files which are produced by the TeX typesetting system.\n"
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"KDVI 1.3 is based on original code from KDVI version 0.43 and xdvik."));
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about->addAuthor ("Stefan Kebekus",
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I18N_NOOP("Current Maintainer."),
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"kebekus@kde.org",
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"http://www.mi.uni-koeln.de/~kebekus");
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about->addAuthor ("Markku Hinhala", I18N_NOOP("Author of kdvi 0.4.3"));
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about->addAuthor ("Nicolai Langfeldt", I18N_NOOP("Maintainer of xdvik"));
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about->addAuthor ("Paul Vojta", I18N_NOOP("Author of xdvi"));
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about->addCredit ("Philipp Lehmann", I18N_NOOP("Testing and bug reporting."));
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about->addCredit ("Wilfried Huss", I18N_NOOP("Re-organisation of source code."));
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return about;
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}
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void KDVIMultiPage::slotEmbedPostScript()
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{
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DVIRenderer.embedPostScript();
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if (DVIRenderer.isModified())
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emit(documentIsModified());
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setEmbedPostScriptAction();
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}
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void KDVIMultiPage::setEmbedPostScriptAction()
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{
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if ((DVIRenderer.dviFile == 0) || (DVIRenderer.dviFile->numberOfExternalPSFiles == 0))
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embedPSAction->setEnabled(false);
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else
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embedPSAction->setEnabled(true);
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}
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bool KDVIMultiPage::slotSave(const QString &fileName)
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{
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// Paranoid safety checks
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if (DVIRenderer.dviFile == 0)
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return false;
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if (DVIRenderer.dviFile->dvi_Data() == 0)
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return false;
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if (fileName.isEmpty())
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return false;
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bool r = DVIRenderer.dviFile->saveAs(fileName);
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if (r == false)
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KMessageBox::error(parentWdg, i18n("<qt>Error saving the document to the file <strong>%1</strong>. The document is <strong>not</strong> saved.</qt>").arg(fileName),
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i18n("Error saving document"));
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return r;
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}
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void KDVIMultiPage::setFile(bool r)
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{
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enableActions(r);
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}
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QStringList KDVIMultiPage::fileFormats() const
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{
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QStringList r;
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r << i18n("*.dvi *.DVI|TeX Device Independent Files (*.dvi)");
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return r;
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}
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void KDVIMultiPage::addConfigDialogs(KConfigDialog* configDialog)
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{
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static optionDialogFontsWidget* fontConfigWidget = 0;
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fontConfigWidget = new optionDialogFontsWidget(pageView());
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optionDialogSpecialWidget* specialConfigWidget = new optionDialogSpecialWidget(pageView());
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configDialog->addPage(fontConfigWidget, Prefs::self(), i18n("TeX Fonts"), "fonts");
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configDialog->addPage(specialConfigWidget, Prefs::self(), i18n("DVI Specials"), "dvi");
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configDialog->setHelp("preferences", "kdvi");
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}
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void KDVIMultiPage::preferencesChanged()
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{
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// Call method from parent class
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KMultiPage::preferencesChanged();
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#ifdef KDVI_MULTIPAGE_DEBUG
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kdDebug(kvs::dvi) << "preferencesChanged" << endl;
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#endif
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bool showPS = Prefs::showPS();
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bool useFontHints = Prefs::useFontHints();
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DVIRenderer.setPrefs( showPS, Prefs::editorCommand(), useFontHints);
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}
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void KDVIMultiPage::print()
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{
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// Obtain a fully initialized KPrinter structure, and disable all
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// entries in the "Page Size & Placement" tab of the printer dialog.
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KPrinter *printer = getPrinter(false);
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// Abort with an error message if no KPrinter could be initialized
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if (printer == 0) {
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kdError(kvs::dvi) << "KPrinter not available" << endl;
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return;
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}
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// Show the printer options dialog. Return immediately if the user
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// aborts.
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if (!printer->setup(parentWdg, i18n("Print %1").arg(m_file.section('/', -1)) ))
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return;
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// This funny method call is necessary for the KPrinter to return
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// proper results in printer->orientation() below. It seems that
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// KPrinter does some options parsing in that method.
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((KDVIPrinterWrapper *)printer)->doPreparePrinting();
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if (printer->pageList().isEmpty()) {
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KMessageBox::error( pageView(),
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i18n("The list of pages you selected was empty.\n"
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"Maybe you made an error in selecting the pages, "
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"e.g. by giving an invalid range like '7-2'.") );
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return;
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}
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// Turn the results of the options requestor into a list arguments
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// which are used by dvips.
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QString dvips_options = QString::null;
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// Print in reverse order.
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if ( printer->pageOrder() == KPrinter::LastPageFirst )
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dvips_options += "-r ";
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// Print only odd pages.
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if ( printer->pageSet() == KPrinter::OddPages )
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dvips_options += "-A ";
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// Print only even pages.
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if ( printer->pageSet() == KPrinter::EvenPages )
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dvips_options += "-B ";
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// We use the printer->pageSize() method to find the printer page
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// size, and pass that information on to dvips. Unfortunately, dvips
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// does not understand all of these; what exactly dvips understands,
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// depends on its configuration files. Consequence: expect problems
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// with unusual paper sizes.
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switch( printer->pageSize() ) {
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case KPrinter::A4:
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dvips_options += "-t a4 ";
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break;
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case KPrinter::B5:
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dvips_options += "-t b5 ";
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break;
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case KPrinter::Letter:
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dvips_options += "-t letter ";
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break;
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case KPrinter::Legal:
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dvips_options += "-t legal ";
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break;
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case KPrinter::Executive:
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dvips_options += "-t executive ";
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break;
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case KPrinter::A0:
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dvips_options += "-t a0 ";
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break;
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case KPrinter::A1:
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dvips_options += "-t a1 ";
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break;
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case KPrinter::A2:
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dvips_options += "-t a2 ";
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break;
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case KPrinter::A3:
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dvips_options += "-t a3 ";
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break;
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case KPrinter::A5:
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dvips_options += "-t a5 ";
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break;
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case KPrinter::A6:
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dvips_options += "-t a6 ";
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break;
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case KPrinter::A7:
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dvips_options += "-t a7 ";
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break;
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case KPrinter::A8:
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dvips_options += "-t a8 ";
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break;
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case KPrinter::A9:
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dvips_options += "-t a9 ";
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break;
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case KPrinter::B0:
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dvips_options += "-t b0 ";
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break;
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case KPrinter::B1:
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dvips_options += "-t b1 ";
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break;
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case KPrinter::B10:
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dvips_options += "-t b10 ";
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break;
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case KPrinter::B2:
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dvips_options += "-t b2 ";
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break;
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case KPrinter::B3:
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dvips_options += "-t b3 ";
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break;
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case KPrinter::B4:
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dvips_options += "-t b4 ";
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break;
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case KPrinter::B6:
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dvips_options += "-t b6 ";
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break;
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case KPrinter::B7:
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dvips_options += "-t b7 ";
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break;
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case KPrinter::B8:
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dvips_options += "-t b8 ";
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break;
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case KPrinter::B9:
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dvips_options += "-t b9 ";
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break;
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case KPrinter::C5E:
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dvips_options += "-t c5e ";
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break;
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case KPrinter::Comm10E:
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dvips_options += "-t comm10e ";
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break;
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case KPrinter::DLE:
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dvips_options += "-t dle ";
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break;
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case KPrinter::Folio:
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dvips_options += "-t folio ";
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break;
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case KPrinter::Ledger:
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dvips_options += "-t ledger ";
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break;
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case KPrinter::Tabloid:
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dvips_options += "-t tabloid ";
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break;
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default:
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break;
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}
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// Orientation
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if ( printer->orientation() == KPrinter::Landscape )
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dvips_options += "-t landscape ";
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// List of pages to print.
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QList<int> pageList = printer->pageList();
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dvips_options += "-pp ";
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int commaflag = 0;
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for( QList<int>::ConstIterator it = pageList.begin(); it != pageList.end(); ++it ) {
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if (commaflag == 1)
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dvips_options += QString(",");
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else
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commaflag = 1;
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dvips_options += QString("%1").arg(*it);
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}
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// Now print. For that, export the DVI-File to PostScript. Note that
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// dvips will run concurrently to keep the GUI responsive, keep log
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// of dvips and allow abort. Giving a non-zero printer argument
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// means that the dvi-widget will print the file when dvips
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// terminates, and then delete the output file.
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QTemporaryFile tf;
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// Must open the QTemporaryFile to access the file name.
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tf.setAutoRemove(false);
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tf.open();
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DVIRenderer.exportPS(tf.fileName(), dvips_options, printer);
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// "True" may be a bit euphemistic. However, since dvips runs
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// concurrently, there is no way of telling the result of the
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// printing command at this stage.
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return;
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}
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void KDVIMultiPage::enableActions(bool b)
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{
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KMultiPage::enableActions(b);
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docInfoAction->setEnabled(b);
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exportPSAction->setEnabled(b);
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exportPDFAction->setEnabled(b);
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setEmbedPostScriptAction();
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}
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void KDVIMultiPage::doEnableWarnings()
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{
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KMessageBox::information (pageView(), i18n("All messages and warnings will now be shown."));
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KMessageBox::enableAllMessages();
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KTipDialog::setShowOnStart(true);
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}
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void KDVIMultiPage::showTip()
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{
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KTipDialog::showTip(pageView(), "kdvi/tips", true);
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}
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void KDVIMultiPage::showTipOnStart()
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{
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KTipDialog::showTip(pageView(), "kdvi/tips");
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}
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DocumentWidget* KDVIMultiPage::createDocumentWidget()
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{
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DVIWidget* documentWidget = new DVIWidget(pageView(), pageCache, "singlePageWidget");
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// Handle source links
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connect(documentWidget, SIGNAL(SRCLink(const QString&, const QPoint&, DocumentWidget*)), getRenderer(),
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SLOT(handleSRCLink(const QString& , const QPoint&, DocumentWidget*)));
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return documentWidget;
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}
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void KDVIMultiPage::initializePageCache()
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{
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pageCache = new DVIPageCache();
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}
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void KDVIMultiPage::showFindTextDialog()
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{
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if ((getRenderer().isNull()) || (getRenderer()->supportsTextSearch() == false))
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return;
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if (!searchUsed)
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{
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// WARNING: This text appears several times in the code. Change
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// everywhere, or nowhere!
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if (KMessageBox::warningContinueCancel( pageView(),
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i18n("<qt>This function searches the DVI file for plain text. Unfortunately, this version of "
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"KDVI treats only plain ASCII characters properly. Symbols, ligatures, mathematical "
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"formulae, accented characters, and non-English text, such as Russian or Korean, will "
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"most likely be messed up completely. Continue anyway?</qt>"),
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i18n("Function May Not Work as Expected"),
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KStdGuiItem::cont(),
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"warning_search_text_may_not_work") == KMessageBox::Cancel)
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return;
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// Remember that we don't need to show the warning message again.
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searchUsed = true;
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}
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// Now really show the search widget
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KMultiPage::showFindTextDialog();
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}
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#include "kdvi_multipage.moc"
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