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, 660 insertions, 0 deletions

diff --git a/kdvi/dviRenderer_draw.cpp b/kdvi/dviRenderer_draw.cpp
new file mode 100644
index 00000000..d09caf6d
--- /dev/null
+++ b/kdvi/dviRenderer_draw.cpp
@@ -0,0 +1,660 @@
+/*
+ * Copyright (c) 1994 Paul Vojta.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * NOTE:
+ *	xdvi is based on prior work as noted in the modification history, below.
+ */
+
+/*
+ * DVI previewer for X.
+ *
+ * Eric Cooper, CMU, September 1985.
+ *
+ * Code derived from dvi-imagen.c.
+ *
+ * Modification history:
+ * 1/1986	Modified for X.10	--Bob Scheifler, MIT LCS.
+ * 7/1988	Modified for X.11	--Mark Eichin, MIT
+ * 12/1988	Added 'R' option, toolkit, magnifying glass
+ *					--Paul Vojta, UC Berkeley.
+ * 2/1989	Added tpic support	--Jeffrey Lee, U of Toronto
+ * 4/1989	Modified for System V	--Donald Richardson, Clarkson Univ.
+ * 3/1990	Added VMS support	--Scott Allendorf, U of Iowa
+ * 7/1990	Added reflection mode	--Michael Pak, Hebrew U of Jerusalem
+ * 1/1992	Added greyscale code	--Till Brychcy, Techn. Univ. Muenchen
+ *					  and Lee Hetherington, MIT
+ * 4/1994	Added DPS support, bounding box
+ *					--Ricardo Telichevesky
+ *					  and Luis Miguel Silveira, MIT RLE.
+ */
+
+//#define DEBUG_RENDER 0
+
+#include <config.h>
+
+#include "dviRenderer.h"
+#include "dvi.h"
+#include "dviFile.h"
+#include "fontpool.h"
+#include "hyperlink.h"
+#include "kdvi_multipage.h"
+#include "performanceMeasurement.h"
+#include "psgs.h"
+#include "renderedDviPagePixmap.h"
+#include "TeXFont.h"
+#include "textBox.h"
+#include "xdvi.h"
+
+#include <kdebug.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+#include <kprocess.h>
+#include <qpainter.h>
+#include <qbitmap.h> 
+#include <qimage.h> 
+#include <qpainter.h>
+#include <qfileinfo.h>
+
+extern QPainter *foreGroundPainter;
+
+
+/** Routine to print characters.  */
+
+void dviRenderer::set_char(unsigned int cmd, unsigned int ch)
+{
+#ifdef DEBUG_RENDER
+  kdDebug(4300) << "set_char #" << ch << endl;
+#endif
+
+  glyph *g;
+  if (colorStack.isEmpty())
+    g = ((TeXFont *)(currinf.fontp->font))->getGlyph(ch, true, globalColor);
+  else
+    g = ((TeXFont *)(currinf.fontp->font))->getGlyph(ch, true, colorStack.top());
+  if (g == NULL)
+    return;
+
+  long dvi_h_sav = currinf.data.dvi_h;
+
+  QPixmap pix = g->shrunkenCharacter;
+  int x = ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))) - g->x2;
+  int y = currinf.data.pxl_v - g->y2;
+  
+  // Draw the character.
+  foreGroundPainter->drawPixmap(x, y, pix);
+  
+  // Are we drawing text for a hyperlink? And are hyperlinks
+  // enabled?
+  if (HTML_href != NULL) {
+    // Now set up a rectangle which is checked against every mouse
+    // event.
+    if (line_boundary_encountered == true) {
+      // Set up hyperlink
+      Hyperlink dhl;
+      dhl.baseline = currinf.data.pxl_v;
+      dhl.box.setRect(x, y, pix.width(), pix.height());
+      dhl.linkText = *HTML_href;
+      currentlyDrawnPage->hyperLinkList.push_back(dhl);
+    } else {
+      QRect dshunion = currentlyDrawnPage->hyperLinkList[currentlyDrawnPage->hyperLinkList.size()-1].box.unite(QRect(x, y, pix.width(), pix.height())) ;
+      currentlyDrawnPage->hyperLinkList[currentlyDrawnPage->hyperLinkList.size()-1].box = dshunion;
+    }
+  }
+  
+  // Are we drawing text for a source hyperlink? And are source
+  // hyperlinks enabled?
+  // If we are printing source hyperlinks are irrelevant, otherwise we
+  // actually got a pointer to a RenderedDviPagePixmap.
+  RenderedDviPagePixmap* currentDVIPage = dynamic_cast<RenderedDviPagePixmap*>(currentlyDrawnPage);
+  if (source_href != 0 && currentDVIPage) {
+    // Now set up a rectangle which is checked against every mouse
+    // event.
+    if (line_boundary_encountered == true) {
+      // Set up source hyperlinks
+      Hyperlink dhl;
+      dhl.baseline = currinf.data.pxl_v;
+      dhl.box.setRect(x, y, pix.width(), pix.height());
+      if (source_href != NULL) 
+        dhl.linkText = *source_href;
+      else
+        dhl.linkText = "";
+      currentDVIPage->sourceHyperLinkList.push_back(dhl);
+    } else {
+      QRect dshunion = currentDVIPage->sourceHyperLinkList[currentDVIPage->sourceHyperLinkList.size()-1].box.unite(QRect(x, y, pix.width(), pix.height())) ;
+      currentDVIPage->sourceHyperLinkList[currentDVIPage->sourceHyperLinkList.size()-1].box = dshunion;
+    }
+  }
+  
+  // Code for DVI -> text functions (e.g. marking of text, full text
+  // search, etc.). Set up the currentlyDrawnPage->textBoxList.
+  TextBox link;
+  link.box.setRect(x, y, pix.width(), pix.height());
+  link.text = "";
+  currentlyDrawnPage->textBoxList.push_back(link);
+
+  switch(ch) {
+  case 0x0b:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "ff";
+    break;
+  case 0x0c:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "fi";
+    break;
+  case 0x0d:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "fl";
+    break;
+  case 0x0e:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "ffi";
+    break;
+  case 0x0f:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "ffl";
+    break;
+    
+  case 0x7b:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "-";
+    break;
+  case 0x7c:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "---";
+    break;
+  case 0x7d:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "\"";
+    break;
+  case 0x7e:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "~";
+    break;
+  case 0x7f:
+    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "@@"; // @@@ check!
+    break;
+    
+  default:
+    if ((ch >= 0x21) && (ch <= 0x7a))
+      currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += QChar(ch);
+    else
+      currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += "?";
+    break;
+  }
+  
+  
+  if (cmd == PUT1)
+    currinf.data.dvi_h = dvi_h_sav;
+  else
+    currinf.data.dvi_h += (int)(currinf.fontp->scaled_size_in_DVI_units * dviFile->getCmPerDVIunit() * 
+				(1200.0 / 2.54)/16.0 * g->dvi_advance_in_units_of_design_size_by_2e20 + 0.5);
+
+  word_boundary_encountered = false;
+  line_boundary_encountered = false;
+}
+
+void dviRenderer::set_empty_char(unsigned int, unsigned int)
+{
+  return;
+}
+
+void dviRenderer::set_vf_char(unsigned int cmd, unsigned int ch)
+{
+#ifdef DEBUG_RENDER
+  kdDebug(4300) << "dviRenderer::set_vf_char( cmd=" << cmd << ", ch=" << ch << " )" << endl;
+#endif
+
+  static unsigned char   c;
+  macro *m = &currinf.fontp->macrotable[ch];
+  if (m->pos == NULL) {
+    kdError(4300) << "Character " << ch << " not defined in font " << currinf.fontp->fontname << endl;
+    m->pos = m->end = &c;
+    return;
+  }
+
+  long dvi_h_sav = currinf.data.dvi_h;
+
+  struct drawinf oldinfo = currinf;
+  currinf.data.w         = 0;
+  currinf.data.x         = 0;
+  currinf.data.y         = 0;
+  currinf.data.z         = 0;
+  
+  currinf.fonttable         = &(currinf.fontp->vf_table);
+  currinf._virtual          = currinf.fontp;
+  Q_UINT8 *command_ptr_sav  = command_pointer;
+  Q_UINT8 *end_ptr_sav      = end_pointer;
+  command_pointer           = m->pos;
+  end_pointer               = m->end;
+  draw_part(currinf.fontp->scaled_size_in_DVI_units*(dviFile->getCmPerDVIunit() * 1200.0 / 2.54)/16.0, true);
+  command_pointer           = command_ptr_sav;
+  end_pointer               = end_ptr_sav;
+  currinf = oldinfo;
+  
+  if (cmd == PUT1)
+    currinf.data.dvi_h = dvi_h_sav;
+  else
+    currinf.data.dvi_h += (int)(currinf.fontp->scaled_size_in_DVI_units * dviFile->getCmPerDVIunit() * 
+				(1200.0 / 2.54)/16.0 * m->dvi_advance_in_units_of_design_size_by_2e20 + 0.5);
+}
+
+
+void dviRenderer::set_no_char(unsigned int cmd, unsigned int ch)
+{
+#ifdef DEBUG_RENDER
+  kdDebug(4300) << "dviRenderer::set_no_char( cmd=" << cmd << ", ch =" << ch << " )"  << endl;
+#endif
+  
+  if (currinf._virtual) {
+    currinf.fontp = currinf._virtual->first_font;
+    if (currinf.fontp != NULL) {
+      currinf.set_char_p = currinf.fontp->set_char_p;
+      (this->*currinf.set_char_p)(cmd, ch);
+      return;
+    }
+  }
+
+  errorMsg = i18n("The DVI code set a character of an unknown font.");
+  return;
+}
+
+
+void dviRenderer::draw_part(double current_dimconv, bool is_vfmacro)
+{
+#ifdef DEBUG_RENDER
+  kdDebug(4300) << "draw_part" << endl;
+#endif
+
+  Q_INT32 RRtmp=0, WWtmp=0, XXtmp=0, YYtmp=0, ZZtmp=0;
+  Q_UINT8 ch;
+
+  currinf.fontp        = NULL;
+  currinf.set_char_p   = &dviRenderer::set_no_char;
+
+  for (;;) {
+    ch = readUINT8();
+    if (ch <= (unsigned char) (SETCHAR0 + 127)) {
+      (this->*currinf.set_char_p)(ch, ch);
+    } else
+      if (FNTNUM0 <= ch && ch <= (unsigned char) (FNTNUM0 + 63)) {
+	currinf.fontp = currinf.fonttable->find(ch - FNTNUM0);
+	if (currinf.fontp == NULL) {
+	  errorMsg = i18n("The DVI code referred to font #%1, which was not previously defined.").arg(ch - FNTNUM0);
+	  return;
+	}
+	currinf.set_char_p = currinf.fontp->set_char_p;
+      } else {
+	Q_INT32 a, b;
+	
+	switch (ch) {
+	case SET1:
+	case PUT1:
+	  (this->*currinf.set_char_p)(ch, readUINT8());
+	  break;
+	  
+	case SETRULE:
+	  if (is_vfmacro == false) {
+	    word_boundary_encountered = true;
+	    line_boundary_encountered = true;
+	  }
+	  /* Be careful, dvicopy outputs rules with height =
+	     0x80000000. We don't want any SIGFPE here. */
+	  a = readUINT32();
+	  b = readUINT32();
+	  b = ((long) (b *  current_dimconv));
+	  if (a > 0 && b > 0) {
+	    int h = ((int) ROUNDUP(((long) (a *  current_dimconv)), shrinkfactor * 65536));
+	    int w =  ((int) ROUNDUP(b, shrinkfactor * 65536));
+	    
+	    if (colorStack.isEmpty())
+	      foreGroundPainter->fillRect( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))),
+					 currinf.data.pxl_v - h + 1, w?w:1, h?h:1, globalColor );
+	    else
+	      foreGroundPainter->fillRect( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))),
+					currinf.data.pxl_v - h + 1, w?w:1, h?h:1, colorStack.top() );
+	  }
+	  currinf.data.dvi_h += b;
+	  break;
+
+	case PUTRULE:
+	  if (is_vfmacro == false) {
+	    word_boundary_encountered = true;
+	    line_boundary_encountered = true;
+	  }
+	  a = readUINT32();
+	  b = readUINT32();
+	  a = ((long) (a *  current_dimconv));
+	  b = ((long) (b *  current_dimconv));
+	  if (a > 0 && b > 0) {
+	    int h = ((int) ROUNDUP(a, shrinkfactor * 65536));
+	    int w = ((int) ROUNDUP(b, shrinkfactor * 65536));
+	    if (colorStack.isEmpty())
+	      foreGroundPainter->fillRect( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))),
+					 currinf.data.pxl_v - h + 1, w?w:1, h?h:1, globalColor );
+	    else
+	      foreGroundPainter->fillRect( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))),
+					currinf.data.pxl_v - h + 1, w?w:1, h?h:1, colorStack.top() );
+	  }
+	  break;
+
+	case NOP:
+	  break;
+	  
+	case BOP:
+	  if (is_vfmacro == false) {
+	    word_boundary_encountered = true;
+	    line_boundary_encountered = true;
+	  }
+	  command_pointer += 11 * 4;
+	  currinf.data.dvi_h = 1200 << 16; // Reminder: DVI-coordinates start at (1",1") from top of page
+	  currinf.data.dvi_v = 1200;
+	  currinf.data.pxl_v = int(currinf.data.dvi_v/shrinkfactor);
+	  currinf.data.w = currinf.data.x = currinf.data.y = currinf.data.z = 0;
+	  break;
+
+	case EOP:
+	  // Check if we are just at the end of a virtual font macro.
+	  if (is_vfmacro == false) {
+	    // This is really the end of a page, and not just the end
+	    // of a macro. Mark the end of the current word.
+	    word_boundary_encountered = true;
+	    line_boundary_encountered = true;
+	    // Sanity check for the dvi-file: The DVI-standard asserts
+	    // that at the end of a page, the stack should always be
+	    // empty.
+	    if (!stack.isEmpty()) {
+	      kdDebug(4300) << "DRAW: The stack was not empty when the EOP command was encountered." << endl;
+	      errorMsg = i18n("The stack was not empty when the EOP command was encountered.");
+	      return;
+	    }
+	  }
+	  return;
+
+	case PUSH:
+	  stack.push(currinf.data);
+	  break;
+
+	case POP:
+	  if (stack.isEmpty()) {
+	    errorMsg = i18n("The stack was empty when a POP command was encountered.");
+	    return;
+	  } else
+	    currinf.data = stack.pop();
+	  word_boundary_encountered = true;
+	  line_boundary_encountered = true;
+	  break;
+
+	case RIGHT1:
+	case RIGHT2:
+	case RIGHT3:
+	case RIGHT4:
+	  RRtmp = readINT(ch - RIGHT1 + 1);
+
+	  // A horizontal motion in the range 4 * font space [f] < h <
+	  // font space [f] will be treated as a kern that is not
+	  // indicated in the printouts that DVItype produces between
+	  // brackets. We allow a larger space in the negative
+	  // direction than in the positive one, because TEX makes
+	  // comparatively large backspaces when it positions
+	  // accents. (comments stolen from the source of dvitype)
+	  if ((is_vfmacro == false) &&
+	      (currinf.fontp != 0) &&
+	      ((RRtmp >= currinf.fontp->scaled_size_in_DVI_units/6) || (RRtmp <= -4*(currinf.fontp->scaled_size_in_DVI_units/6))) && 
+	      (currentlyDrawnPage->textBoxList.size() > 0))
+	    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += ' ';
+	  currinf.data.dvi_h += ((long) (RRtmp *  current_dimconv));
+	  break;
+	  
+	case W1:
+	case W2:
+	case W3:
+	case W4:
+	  WWtmp = readINT(ch - W0);
+	  currinf.data.w = ((long) (WWtmp *  current_dimconv));
+	case W0:
+	  if ((is_vfmacro == false) && 
+	      (currinf.fontp != 0) &&
+	      ((WWtmp >= currinf.fontp->scaled_size_in_DVI_units/6) || (WWtmp <= -4*(currinf.fontp->scaled_size_in_DVI_units/6))) && 
+	      (currentlyDrawnPage->textBoxList.size() > 0) )
+	    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += ' ';
+	  currinf.data.dvi_h += currinf.data.w;
+	  break;
+	  
+	case X1:
+	case X2:
+	case X3:
+	case X4:
+	  XXtmp = readINT(ch - X0);
+	  currinf.data.x = ((long) (XXtmp *  current_dimconv));
+	case X0:
+	  if ((is_vfmacro == false)  && 
+	      (currinf.fontp != 0) &&
+	      ((XXtmp >= currinf.fontp->scaled_size_in_DVI_units/6) || (XXtmp <= -4*(currinf.fontp->scaled_size_in_DVI_units/6))) && 
+	      (currentlyDrawnPage->textBoxList.size() > 0))
+	    currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += ' ';
+	  currinf.data.dvi_h += currinf.data.x;
+	  break;
+	  
+	case DOWN1:
+	case DOWN2:
+	case DOWN3:
+	case DOWN4:
+	  {
+	    Q_INT32 DDtmp = readINT(ch - DOWN1 + 1);
+	    if ((is_vfmacro == false) &&
+		(currinf.fontp != 0) &&
+		(abs(DDtmp) >= 5*(currinf.fontp->scaled_size_in_DVI_units/6)) && 
+		(currentlyDrawnPage->textBoxList.size() > 0)) {
+	      word_boundary_encountered = true;
+	      line_boundary_encountered = true;
+	      if (abs(DDtmp) >= 10*(currinf.fontp->scaled_size_in_DVI_units/6)) 
+		currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '\n';
+	    }
+	    currinf.data.dvi_v += ((long) (DDtmp *  current_dimconv))/65536;
+	    currinf.data.pxl_v  = int(currinf.data.dvi_v/shrinkfactor);
+	  }
+	  break;
+	  
+	case Y1:
+	case Y2:
+	case Y3:
+	case Y4:
+	  YYtmp = readINT(ch - Y0);
+	  currinf.data.y    = ((long) (YYtmp *  current_dimconv));
+	case Y0:
+	  if ((is_vfmacro == false) &&
+	      (currinf.fontp != 0) &&
+	      (abs(YYtmp) >= 5*(currinf.fontp->scaled_size_in_DVI_units/6)) && 
+	      (currentlyDrawnPage->textBoxList.size() > 0)) {
+	    word_boundary_encountered = true;
+	    line_boundary_encountered = true;
+	    if (abs(YYtmp) >= 10*(currinf.fontp->scaled_size_in_DVI_units/6)) 
+	      currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '\n';
+	  }
+	  currinf.data.dvi_v += currinf.data.y/65536;
+	  currinf.data.pxl_v = int(currinf.data.dvi_v/shrinkfactor);
+	  break;
+	  
+	case Z1:
+	case Z2:
+	case Z3:
+	case Z4:
+	  ZZtmp = readINT(ch - Z0);
+	  currinf.data.z    = ((long) (ZZtmp *  current_dimconv));
+	case Z0:
+	  if ((is_vfmacro == false) &&
+	      (currinf.fontp != 0) &&
+	      (abs(ZZtmp) >= 5*(currinf.fontp->scaled_size_in_DVI_units/6)) && 
+	      (currentlyDrawnPage->textBoxList.size() > 0)) {
+	    word_boundary_encountered = true;
+	    line_boundary_encountered = true;
+	    if (abs(ZZtmp) >= 10*(currinf.fontp->scaled_size_in_DVI_units/6)) 
+	      currentlyDrawnPage->textBoxList[currentlyDrawnPage->textBoxList.size()-1].text += '\n';
+	  }
+	  currinf.data.dvi_v += currinf.data.z/65536;
+	  currinf.data.pxl_v  = int(currinf.data.dvi_v/shrinkfactor);
+	  break;
+	  
+	case FNT1:
+	case FNT2:
+	case FNT3:
+	  currinf.fontp = currinf.fonttable->find(readUINT(ch - FNT1 + 1));
+	  if (currinf.fontp == NULL) {
+	    errorMsg = i18n("The DVI code referred to a font which was not previously defined.");
+	    return;
+	  }
+	  currinf.set_char_p = currinf.fontp->set_char_p;
+	  break;
+
+	case FNT4:
+	  currinf.fontp = currinf.fonttable->find(readINT(ch - FNT1 + 1));
+	  if (currinf.fontp == NULL) {
+	    errorMsg = i18n("The DVI code referred to a font which was not previously defined.");
+	    return;
+	  }
+	  currinf.set_char_p = currinf.fontp->set_char_p;
+	  break;
+
+	case XXX1:
+	case XXX2:
+	case XXX3:
+	case XXX4:
+	  if (is_vfmacro == false) {
+	    word_boundary_encountered = true;
+	    line_boundary_encountered = true;
+	  }
+	  a = readUINT(ch - XXX1 + 1);
+	  if (a > 0) {
+	    char	*cmd	= new char[a+1];
+	    strncpy(cmd, (char *)command_pointer, a);
+	    command_pointer += a;
+	    cmd[a] = '\0';
+	    applicationDoSpecial(cmd);
+	    delete [] cmd;
+	  }
+	  break;
+
+	case FNTDEF1:
+	case FNTDEF2:
+	case FNTDEF3:
+	case FNTDEF4:
+	  command_pointer += 12 + ch - FNTDEF1 + 1;
+          {
+            Q_UINT8 tempa = readUINT8();
+            Q_UINT8 tempb = readUINT8();
+	    command_pointer += tempa + tempb;
+          }
+	  break;
+	  
+	case PRE:
+	case POST:
+	case POSTPOST:
+	  errorMsg = i18n("An illegal command was encountered.");
+	  return;
+	  break;
+	  
+	default:
+	  errorMsg = i18n("The unknown op-code %1 was encountered.").arg(ch);
+	  return;
+	} /* end switch*/
+      } /* end else (ch not a SETCHAR or FNTNUM) */
+  } /* end for */
+}
+
+
+void dviRenderer::draw_page()
+{
+  // Reset a couple of variables
+  HTML_href         = 0;
+  source_href       = 0;
+  penWidth_in_mInch = 0.0;
+
+  // Calling resize() here rather than clear() means that the memory
+  // taken up by the vector is not freed. This is faster than
+  // constantly allocating/freeing memory.
+  currentlyDrawnPage->textBoxList.resize(0);
+
+  RenderedDviPagePixmap* currentDVIPage = dynamic_cast<RenderedDviPagePixmap*>(currentlyDrawnPage);
+  if (currentDVIPage)
+  {
+    currentDVIPage->sourceHyperLinkList.resize(0);
+  }
+
+#ifdef PERFORMANCE_MEASUREMENT
+  // If this is the first time a page is drawn, take the time that is
+  // elapsed till the kdvi_multipage was constructed, and print
+  // it. Set the flag so that is message will not be printed again.
+  if (performanceFlag == 0) {
+    kdDebug(4300) << "Time elapsed till the first page is drawn: " << performanceTimer.restart() << "ms" << endl;
+    performanceFlag = 1;
+  }
+#endif
+
+
+#ifdef DEBUG_RENDER
+  kdDebug(4300) <<"draw_page" << endl;
+#endif
+
+  if (!accessibilityBackground)
+  {
+    foreGroundPainter->fillRect( foreGroundPainter->viewport(), PS_interface->getBackgroundColor(current_page) );
+  }
+  else
+  {
+    // In accessiblity mode use the custom background color
+    foreGroundPainter->fillRect( foreGroundPainter->viewport(), accessibilityBackgroundColor );
+  }
+
+  // Render the PostScript background, if there is one.
+  if (_postscript)
+  {
+    // In accessiblity mode use the custom background color
+    if (accessibilityBackground)
+    {
+      // Flag permanent is set to false because otherwise we would not be able to restore
+      // the original background color.
+      PS_interface->setBackgroundColor(current_page, accessibilityBackgroundColor, false);
+    }
+    else
+      PS_interface->restoreBackgroundColor(current_page);
+
+    PS_interface->graphics(current_page, resolutionInDPI, dviFile->getMagnification(), foreGroundPainter);
+  }
+
+  // Now really write the text
+  if (dviFile->page_offset.isEmpty() == true)
+    return;
+  if (current_page < dviFile->total_pages) {
+    command_pointer = dviFile->dvi_Data() + dviFile->page_offset[current_page];
+    end_pointer     = dviFile->dvi_Data() + dviFile->page_offset[current_page+1];
+  } else
+    command_pointer = end_pointer = 0;
+  
+  memset((char *) &currinf.data, 0, sizeof(currinf.data));
+  currinf.fonttable      = &(dviFile->tn_table);
+  currinf._virtual       = 0;
+  
+  double fontPixelPerDVIunit = dviFile->getCmPerDVIunit() * 1200.0/2.54;
+  
+  draw_part(65536.0*fontPixelPerDVIunit, false);
+  if (HTML_href != 0) {
+    delete HTML_href;
+    HTML_href = 0;
+  }
+  if (source_href != 0) {
+    delete source_href;
+    source_href = 0;
+  }
+}