Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 482 insertions, 0 deletions

diff --git a/kdvi/kdvi_multipage.cpp b/kdvi/kdvi_multipage.cpp
new file mode 100644
index 00000000..973e4d5f
--- /dev/null
+++ b/kdvi/kdvi_multipage.cpp
@@ -0,0 +1,482 @@
+#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"