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-rw-r--r--kdvi/kdvi_multipage.cpp482
1 files changed, 482 insertions, 0 deletions
diff --git a/kdvi/kdvi_multipage.cpp b/kdvi/kdvi_multipage.cpp
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+++ b/kdvi/kdvi_multipage.cpp
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+#include <config.h>
+#include <kaction.h>
+#include <kaboutdata.h>
+#include <kaboutdialog.h>
+#include <kapplication.h>
+#include <kbugreport.h>
+#include <kconfigdialog.h>
+#include <kdebug.h>
+#include <kfiledialog.h>
+#include <kglobal.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+#include <kstdaction.h>
+#include <ktempfile.h>
+#include <ktip.h>
+#include <qtimer.h>
+
+#include <kparts/part.h>
+#include <kparts/genericfactory.h>
+
+#include "kdvi_multipage.h"
+#include "documentWidget.h"
+#include "dviFile.h"
+#include "dviPageCache.h"
+#include "dviWidget.h"
+#include "fontpool.h"
+#include "kprinterwrapper.h"
+#include "kviewpart.h"
+#include "marklist.h"
+#include "optionDialogFontsWidget.h"
+#include "optionDialogSpecialWidget.h"
+#include "performanceMeasurement.h"
+#include "prefs.h"
+#include "renderedDocumentPagePixmap.h"
+
+
+#include <qlabel.h>
+
+//#define KDVI_MULTIPAGE_DEBUG
+
+#ifdef PERFORMANCE_MEASUREMENT
+// These objects are explained in the file "performanceMeasurement.h"
+QTime performanceTimer;
+int performanceFlag = 0;
+#endif
+
+typedef KParts::GenericFactory<KDVIMultiPage> KDVIMultiPageFactory;
+K_EXPORT_COMPONENT_FACTORY(kdvipart, KDVIMultiPageFactory)
+
+
+
+KDVIMultiPage::KDVIMultiPage(QWidget *parentWidget, const char *widgetName, QObject *parent,
+ const char *name, const QStringList& args)
+ : KMultiPage(parentWidget, widgetName, parent, name), DVIRenderer(parentWidget)
+{
+ Q_UNUSED(args);
+#ifdef PERFORMANCE_MEASUREMENT
+ performanceTimer.start();
+#endif
+
+ searchUsed = false;
+
+ setInstance(KDVIMultiPageFactory::instance());
+
+ // Points to the same object as renderer to avoid downcasting.
+ // FIXME: Remove when the API of the Renderer-class is finished.
+ DVIRenderer.setName("DVI renderer");
+ setRenderer(&DVIRenderer);
+
+ docInfoAction = new KAction(i18n("Document &Info"), "info", 0, &DVIRenderer, SLOT(showInfo()), actionCollection(), "info_dvi");
+ embedPSAction = new KAction(i18n("Embed External PostScript Files..."), 0, this, SLOT(slotEmbedPostScript()), actionCollection(), "embed_postscript");
+ new KAction(i18n("Enable All Warnings && Messages"), 0, this, SLOT(doEnableWarnings()), actionCollection(), "enable_msgs");
+ exportPSAction = new KAction(i18n("PostScript..."), 0, &DVIRenderer, SLOT(exportPS()), actionCollection(), "export_postscript");
+ exportPDFAction = new KAction(i18n("PDF..."), 0, &DVIRenderer, SLOT(exportPDF()), actionCollection(), "export_pdf");
+
+ KStdAction::tipOfDay(this, SLOT(showTip()), actionCollection(), "help_tipofday");
+
+ setXMLFile("kdvi_part.rc");
+
+ preferencesChanged();
+
+ enableActions(false);
+ // Show tip of the day, when the first main window is shown.
+ QTimer::singleShot(0,this,SLOT(showTipOnStart()));
+}
+
+
+KDVIMultiPage::~KDVIMultiPage()
+{
+ delete docInfoAction;
+ delete embedPSAction;
+ delete exportPSAction;
+ delete exportPDFAction;
+
+ Prefs::writeConfig();
+}
+
+
+KAboutData* KDVIMultiPage::createAboutData()
+{
+ KAboutData* about = new KAboutData("kdvi", I18N_NOOP("KDVI"), "1.3",
+ I18N_NOOP("A previewer for Device Independent files (DVI files) produced by the TeX typesetting system."),
+ KAboutData::License_GPL,
+ "Markku Hinhala, Stephan Kebekus",
+ I18N_NOOP("This program displays Device Independent (DVI) files which are produced by the TeX typesetting system.\n"
+ "KDVI 1.3 is based on original code from KDVI version 0.43 and xdvik."));
+
+ about->addAuthor ("Stefan Kebekus",
+ I18N_NOOP("Current Maintainer."),
+ "kebekus@kde.org",
+ "http://www.mi.uni-koeln.de/~kebekus");
+
+ about->addAuthor ("Markku Hinhala", I18N_NOOP("Author of kdvi 0.4.3"));
+ about->addAuthor ("Nicolai Langfeldt", I18N_NOOP("Maintainer of xdvik"));
+ about->addAuthor ("Paul Vojta", I18N_NOOP("Author of xdvi"));
+ about->addCredit ("Philipp Lehmann", I18N_NOOP("Testing and bug reporting."));
+ about->addCredit ("Wilfried Huss", I18N_NOOP("Re-organisation of source code."));
+
+ return about;
+}
+
+
+void KDVIMultiPage::slotEmbedPostScript()
+{
+ DVIRenderer.embedPostScript();
+ emit askingToCheckActions();
+}
+
+
+void KDVIMultiPage::setEmbedPostScriptAction()
+{
+ if ((DVIRenderer.dviFile == 0) || (DVIRenderer.dviFile->numberOfExternalPSFiles == 0))
+ embedPSAction->setEnabled(false);
+ else
+ embedPSAction->setEnabled(true);
+}
+
+
+void KDVIMultiPage::slotSave()
+{
+ // 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 (0, i18n("The file %1\nexists. Do you want to overwrite that file?").arg(fileName),
+ i18n("Overwrite File"), i18n("Overwrite"));
+ if (r == KMessageBox::Cancel)
+ return;
+ }
+
+ // TODO: error handling...
+ if ((DVIRenderer.dviFile != 0) && (DVIRenderer.dviFile->dvi_Data() != 0))
+ DVIRenderer.dviFile->saveAs(fileName);
+
+ return;
+}
+
+
+void KDVIMultiPage::slotSave_defaultFilename()
+{
+ // TODO: error handling...
+ if (DVIRenderer.dviFile != 0)
+ DVIRenderer.dviFile->saveAs(m_file);
+ return;
+}
+
+
+void KDVIMultiPage::setFile(bool r)
+{
+ enableActions(r);
+}
+
+
+QStringList KDVIMultiPage::fileFormats() const
+{
+ QStringList r;
+ r << i18n("*.dvi *.DVI|TeX Device Independent Files (*.dvi)");
+ return r;
+}
+
+
+void KDVIMultiPage::addConfigDialogs(KConfigDialog* configDialog)
+{
+ static optionDialogFontsWidget* fontConfigWidget = 0;
+
+ fontConfigWidget = new optionDialogFontsWidget(scrollView());
+ optionDialogSpecialWidget* specialConfigWidget = new optionDialogSpecialWidget(scrollView());
+
+ configDialog->addPage(fontConfigWidget, Prefs::self(), i18n("TeX Fonts"), "fonts");
+ configDialog->addPage(specialConfigWidget, Prefs::self(), i18n("DVI Specials"), "dvi");
+ configDialog->setHelp("preferences", "kdvi");
+}
+
+
+void KDVIMultiPage::preferencesChanged()
+{
+ // Call method from parent class
+ KMultiPage::preferencesChanged();
+#ifdef KDVI_MULTIPAGE_DEBUG
+ kdDebug(4300) << "preferencesChanged" << endl;
+#endif
+
+ bool showPS = Prefs::showPS();
+ bool useFontHints = Prefs::useFontHints();
+
+ DVIRenderer.setPrefs( showPS, Prefs::editorCommand(), useFontHints);
+}
+
+
+void KDVIMultiPage::print()
+{
+ // Obtain a fully initialized KPrinter structure, and disable all
+ // entries in the "Page Size & Placement" tab of the printer dialog.
+ KPrinter *printer = getPrinter(false);
+ // Abort with an error message if no KPrinter could be initialized
+ if (printer == 0) {
+ kdError(4300) << "KPrinter not available" << endl;
+ return;
+ }
+
+ // Show the printer options dialog. Return immediately if the user
+ // aborts.
+ if (!printer->setup(parentWdg, i18n("Print %1").arg(m_file.section('/', -1)) ))
+ return;
+
+ // This funny method call is necessary for the KPrinter to return
+ // proper results in printer->orientation() below. It seems that
+ // KPrinter does some options parsing in that method.
+ ((KDVIPrinterWrapper *)printer)->doPreparePrinting();
+ if (printer->pageList().isEmpty()) {
+ KMessageBox::error( scrollView(),
+ i18n("The list of pages you selected was empty.\n"
+ "Maybe you made an error in selecting the pages, "
+ "e.g. by giving an invalid range like '7-2'.") );
+ return;
+ }
+
+ // Turn the results of the options requestor into a list arguments
+ // which are used by dvips.
+ QString dvips_options = QString::null;
+ // Print in reverse order.
+ if ( printer->pageOrder() == KPrinter::LastPageFirst )
+ dvips_options += "-r ";
+ // Print only odd pages.
+ if ( printer->pageSet() == KPrinter::OddPages )
+ dvips_options += "-A ";
+ // Print only even pages.
+ if ( printer->pageSet() == KPrinter::EvenPages )
+ dvips_options += "-B ";
+ // We use the printer->pageSize() method to find the printer page
+ // size, and pass that information on to dvips. Unfortunately, dvips
+ // does not understand all of these; what exactly dvips understands,
+ // depends on its configuration files. Consequence: expect problems
+ // with unusual paper sizes.
+ switch( printer->pageSize() ) {
+ case KPrinter::A4:
+ dvips_options += "-t a4 ";
+ break;
+ case KPrinter::B5:
+ dvips_options += "-t b5 ";
+ break;
+ case KPrinter::Letter:
+ dvips_options += "-t letter ";
+ break;
+ case KPrinter::Legal:
+ dvips_options += "-t legal ";
+ break;
+ case KPrinter::Executive:
+ dvips_options += "-t executive ";
+ break;
+ case KPrinter::A0:
+ dvips_options += "-t a0 ";
+ break;
+ case KPrinter::A1:
+ dvips_options += "-t a1 ";
+ break;
+ case KPrinter::A2:
+ dvips_options += "-t a2 ";
+ break;
+ case KPrinter::A3:
+ dvips_options += "-t a3 ";
+ break;
+ case KPrinter::A5:
+ dvips_options += "-t a5 ";
+ break;
+ case KPrinter::A6:
+ dvips_options += "-t a6 ";
+ break;
+ case KPrinter::A7:
+ dvips_options += "-t a7 ";
+ break;
+ case KPrinter::A8:
+ dvips_options += "-t a8 ";
+ break;
+ case KPrinter::A9:
+ dvips_options += "-t a9 ";
+ break;
+ case KPrinter::B0:
+ dvips_options += "-t b0 ";
+ break;
+ case KPrinter::B1:
+ dvips_options += "-t b1 ";
+ break;
+ case KPrinter::B10:
+ dvips_options += "-t b10 ";
+ break;
+ case KPrinter::B2:
+ dvips_options += "-t b2 ";
+ break;
+ case KPrinter::B3:
+ dvips_options += "-t b3 ";
+ break;
+ case KPrinter::B4:
+ dvips_options += "-t b4 ";
+ break;
+ case KPrinter::B6:
+ dvips_options += "-t b6 ";
+ break;
+ case KPrinter::B7:
+ dvips_options += "-t b7 ";
+ break;
+ case KPrinter::B8:
+ dvips_options += "-t b8 ";
+ break;
+ case KPrinter::B9:
+ dvips_options += "-t b9 ";
+ break;
+ case KPrinter::C5E:
+ dvips_options += "-t c5e ";
+ break;
+ case KPrinter::Comm10E:
+ dvips_options += "-t comm10e ";
+ break;
+ case KPrinter::DLE:
+ dvips_options += "-t dle ";
+ break;
+ case KPrinter::Folio:
+ dvips_options += "-t folio ";
+ break;
+ case KPrinter::Ledger:
+ dvips_options += "-t ledger ";
+ break;
+ case KPrinter::Tabloid:
+ dvips_options += "-t tabloid ";
+ break;
+ default:
+ break;
+ }
+ // Orientation
+ if ( printer->orientation() == KPrinter::Landscape )
+ dvips_options += "-t landscape ";
+
+
+ // List of pages to print.
+ QValueList<int> pageList = printer->pageList();
+ dvips_options += "-pp ";
+ int commaflag = 0;
+ for( QValueList<int>::ConstIterator it = pageList.begin(); it != pageList.end(); ++it ) {
+ if (commaflag == 1)
+ dvips_options += QString(",");
+ else
+ commaflag = 1;
+ dvips_options += QString("%1").arg(*it);
+ }
+
+ // Now print. For that, export the DVI-File to PostScript. Note that
+ // dvips will run concurrently to keep the GUI responsive, keep log
+ // of dvips and allow abort. Giving a non-zero printer argument
+ // means that the dvi-widget will print the file when dvips
+ // terminates, and then delete the output file.
+ KTempFile tf;
+ DVIRenderer.exportPS(tf.name(), dvips_options, printer);
+
+ // "True" may be a bit euphemistic. However, since dvips runs
+ // concurrently, there is no way of telling the result of the
+ // printing command at this stage.
+ return;
+}
+
+
+void KDVIMultiPage::enableActions(bool b)
+{
+ KMultiPage::enableActions(b);
+
+ docInfoAction->setEnabled(b);
+ exportPSAction->setEnabled(b);
+ exportPDFAction->setEnabled(b);
+
+ setEmbedPostScriptAction();
+}
+
+
+void KDVIMultiPage::doEnableWarnings()
+{
+ KMessageBox::information (scrollView(), i18n("All messages and warnings will now be shown."));
+ KMessageBox::enableAllMessages();
+ KTipDialog::setShowOnStart(true);
+}
+
+
+void KDVIMultiPage::showTip()
+{
+ KTipDialog::showTip(scrollView(), "kdvi/tips", true);
+}
+
+
+void KDVIMultiPage::showTipOnStart()
+{
+ KTipDialog::showTip(scrollView(), "kdvi/tips");
+}
+
+
+DocumentWidget* KDVIMultiPage::createDocumentWidget()
+{
+ DVIWidget* documentWidget = new DVIWidget(scrollView()->viewport(), scrollView(), pageCache,
+ "singlePageWidget" );
+
+ // Lets not forget the connections we make in the KMultiPage
+ connect(documentWidget, SIGNAL(clearSelection()), this, SLOT(clearSelection()));
+ connect(this, SIGNAL(enableMoveTool(bool)), documentWidget, SLOT(slotEnableMoveTool(bool)));
+
+ // Handle source links
+ connect(documentWidget, SIGNAL(SRCLink(const QString&, QMouseEvent*, DocumentWidget*)), getRenderer(),
+ SLOT(handleSRCLink(const QString& ,QMouseEvent*, DocumentWidget*)));
+
+ return documentWidget;
+}
+
+
+void KDVIMultiPage::initializePageCache()
+{
+ pageCache = new DVIPageCache();
+}
+
+
+void KDVIMultiPage::showFindTextDialog()
+{
+ if ((getRenderer().isNull()) || (getRenderer()->supportsTextSearch() == false))
+ return;
+
+ if (!searchUsed)
+ {
+ // WARNING: This text appears several times in the code. Change
+ // everywhere, or nowhere!
+ if (KMessageBox::warningContinueCancel( scrollView(),
+ i18n("<qt>This function searches the DVI file for plain text. Unfortunately, this version of "
+ "KDVI treats only plain ASCII characters properly. Symbols, ligatures, mathematical "
+ "formulae, accented characters, and non-English text, such as Russian or Korean, will "
+ "most likely be messed up completely. Continue anyway?</qt>"),
+ i18n("Function May Not Work as Expected"),
+ KStdGuiItem::cont(),
+ "warning_search_text_may_not_work") == KMessageBox::Cancel)
+ return;
+
+ // Remember that we don't need to show the warning message again.
+ searchUsed = true;
+ }
+
+ // Now really show the search widget
+ KMultiPage::showFindTextDialog();
+}
+
+#include "kdvi_multipage.moc"
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