minor bugfixing

svn path=/trunk/kdegraphics/kdvi/; revision=100499

dviwin.cpp

@@ -214,6 +214,28 @@ void dviWindow::exportPDF(void)
   if (dviFile == NULL)
     return;
 
+  // Is the dvipdfm-Programm available ??
+  QStringList texList = QStringList::split(":", QString::fromLocal8Bit(getenv("PATH")));
+  bool found = false;
+  for (QStringList::Iterator it=texList.begin(); it!=texList.end(); ++it) {
+    QString temp = (*it) + "/" + "dvipdfm";
+    if (QFile::exists(temp)) {
+      found = true;
+      break;
+    }
+  }
+  if (found == false) {
+    KMessageBox::sorry(0, i18n("KDVI could not locate the program 'dvipdfm' on your computer. That program is\n"
+			       "absolutely needed by the export function. You can, however, convert\n"
+			       "the DVI-file to PDF using the print function of KDVI, but that will often\n"
+			       "produce which print ok, but are of inferior quality if viewed in the \n"
+			       "Acrobat Reader. It may be wise to upgrade to a more recent version of your\n"
+			       "TeX distribution which includes the 'dvipdfm' program.\n\n"
+			       "Hint to the perplexed system administrator: KDVI uses the shell's PATH variable\n"
+			       "when looking for programs."));
+    return;
+  }
+
   QString fileName = KFileDialog::getSaveFileName(QString::null, "*.pdf|Portable Document Format (*.pdf)", this, i18n("Export File As"));
   if (fileName.isEmpty())
     return;
@@ -331,6 +353,7 @@ void dviWindow::exportPS(QString fname, QString options, KPrinter *printer)
   proc->clearArguments();
   QFileInfo finfo(dviFile->filename);
   *proc << QString("cd %1; dvips").arg(KShellProcess::quote(finfo.dirPath(true)));
+  *proc << "-z"; // export Hyperlinks
   if (options.isEmpty() == false)
     *proc << options;
   *proc << QString("%1").arg(KShellProcess::quote(dviFile->filename));
@@ -461,7 +484,7 @@ void dviWindow::drawPage()
 
   setCursor(arrowCursor);
 
-  // Stop any animation may be in progress
+  // Stop any animation which may be in progress
   if (timerIdent != 0) {
     killTimer(timerIdent);
     timerIdent       = 0;
@@ -500,6 +523,7 @@ void dviWindow::drawPage()
   }
   resize(pixmap->width(), pixmap->height());
   repaint();
+  emit(contents_changed());
 }
 
 

dviwin.h

@@ -119,11 +119,15 @@ public slots:
   void          dvips_terminated(KProcess *);
 
 signals:
-  /// Emitted to indicate that a hyperlink has been clicked on, and
-  //that the widget requests that the controlling program goes to the
-  //page and the coordinates specified.
+  /** Emitted to indicate that a hyperlink has been clicked on, and
+      that the widget requests that the controlling program goes to the
+      page and the coordinates specified. */
   void          request_goto_page(int page, int y);
 
+  /** Emitted to indicate the the contents of the widget has changed
+      and that the tumbnail image should be updated. */
+  void          contents_changed(void);
+
 protected:
  void paintEvent(QPaintEvent *ev);
 

dviwin_draw.cpp

@@ -217,7 +217,6 @@ void dviWindow::set_char(unsigned int cmd, unsigned int ch)
       DVI_H += g->dvi_adv;
 }
 
-
 void dviWindow::set_empty_char(unsigned int cmd, unsigned int ch)
 {
   return;

kdvi_multipage.cpp

@@ -91,6 +91,7 @@ KDVIMultiPage::KDVIMultiPage(QWidget *parentWidget, const char *widgetName, QObj
 
   scrollView()->addChild(window);
   connect(window, SIGNAL(request_goto_page(int, int)), this, SLOT(goto_page(int, int) ) );
+  connect(window, SIGNAL(contents_changed(void)), this, SLOT(contents_of_dviwin_changed(void)) );
 
   readSettings();
   enableActions(false);
@@ -113,20 +114,26 @@ bool KDVIMultiPage::openFile()
   bool r = window->setFile(m_file);
   window->gotoPage(1);
   window->changePageSize(); //  This also calles drawPage();
-
+  
   emit numberOfPages(window->totalPages());
-  scrollView()->resizeContents(window->width(), window->height());
-  emit previewChanged(true);
+  //  scrollView()->resizeContents(window->width(), window->height());
+  // @@@emit previewChanged(true);
   enableActions(r);
 
   return r;
 }
 
 
+void KDVIMultiPage::contents_of_dviwin_changed(void)
+{
+  emit previewChanged(true);
+}
+
+
 bool KDVIMultiPage::closeURL()
 {
   window->setFile(""); // That means: close the file. Resize the widget to 0x0.
-  emit previewChanged(false);
+  //@@@  emit previewChanged(false);
   enableActions(false);
   return true;
 }
@@ -144,7 +151,7 @@ bool KDVIMultiPage::gotoPage(int page)
 {
   window->gotoPage(page+1);
 
-  emit previewChanged(true);
+  //@@@  emit previewChanged(true);
 
   return true;
 }
@@ -154,7 +161,7 @@ void KDVIMultiPage::goto_page(int page, int y)
   window->gotoPage(page+1, y);
   scrollView()->ensureVisible(scrollView()->width()/2, y );
 
-  emit previewChanged(true);
+  //@@@  emit previewChanged(true);
   emit pageInfo(window->totalPages(), page );
 }
 
@@ -476,8 +483,8 @@ void KDVIMultiPage::reload()
     // exist. In that case, gotoPage already selected another page.
     emit pageInfo(window->totalPages(), window->curr_page()-1 ); 
 
-    //    scrollView()->resizeContents(window->width(), window->height());
-    emit previewChanged(true);
+    //@@@    scrollView()->resizeContents(window->width(), window->height());
+    //@@@    emit previewChanged(true);
   } else {
     if (timer_id == -1)
       timer_id = startTimer(1000);

kdvi_multipage.h

@@ -112,7 +112,7 @@ protected slots:
   void bugform();
   void preferencesChanged();
   void goto_page(int page, int y);
-
+  void contents_of_dviwin_changed(void);
 
 private: