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diff --git a/kdvi/special.cpp b/kdvi/special.cpp
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+
+// special.cpp
+
+// Methods for dviRenderer which deal with "\special" commands found in the
+// DVI file
+
+// Copyright 2000--2004, Stefan Kebekus ([email protected]).
+
+#include <config.h>
+
+#include <kdebug.h>
+#include <klocale.h>
+#include <kmimetype.h>
+#include <kprocio.h>
+#include <qdir.h>
+#include <qfile.h>
+#include <qfileinfo.h>
+#include <qimage.h>
+#include <qstringlist.h>
+
+#include "dviFile.h"
+#include "dviRenderer.h"
+#include "hyperlink.h"
+#include "kdvi.h"
+#include "kdvi_multipage.h"
+#include "psgs.h"
+#include "xdvi.h"
+
+//#define DEBUG_SPECIAL
+
+extern QPainter *foreGroundPainter;
+
+void dviRenderer::printErrorMsgForSpecials(const QString& msg)
+{
+ if (dviFile->errorCounter < 25) {
+ kdError(4300) << msg << endl;
+ dviFile->errorCounter++;
+ if (dviFile->errorCounter == 25)
+ kdError(4300) << i18n("That makes 25 errors. Further error messages will not be printed.") << endl;
+ }
+}
+
+// Parses a color specification, as explained in the manual to
+// dvips. If the spec could not be parsed, an invalid color will be
+// returned.
+
+QColor dviRenderer::parseColorSpecification(const QString& colorSpec)
+{
+ // Initialize the map of known colors, if that is not done yet.
+ if (namedColors.isEmpty()) {
+ namedColors["Red"] = QColor( (int)(255.0*1), (int)(255.0*0), (int)(255.0*0));
+ namedColors["Tan"] = QColor( (int)(255.0*0.86), (int)(255.0*0.58), (int)(255.0*0.44));
+ namedColors["Blue"] = QColor( (int)(255.0*0), (int)(255.0*0), (int)(255.0*1));
+ namedColors["Cyan"] = QColor( (int)(255.0*0), (int)(255.0*1), (int)(255.0*1));
+ namedColors["Gray"] = QColor( (int)(255.0*0.5), (int)(255.0*0.5), (int)(255.0*0.5));
+ namedColors["Plum"] = QColor( (int)(255.0*0.5), (int)(255.0*0), (int)(255.0*1));
+ namedColors["Black"] = QColor( (int)(255.0*0), (int)(255.0*0), (int)(255.0*0));
+ namedColors["Brown"] = QColor( (int)(255.0*0.4), (int)(255.0*0), (int)(255.0*0));
+ namedColors["Green"] = QColor( (int)(255.0*0), (int)(255.0*1), (int)(255.0*0));
+ namedColors["Melon"] = QColor( (int)(255.0*1), (int)(255.0*0.54), (int)(255.0*0.5));
+ namedColors["Peach"] = QColor( (int)(255.0*1), (int)(255.0*0.5), (int)(255.0*0.3));
+ namedColors["Sepia"] = QColor( (int)(255.0*0.3), (int)(255.0*0), (int)(255.0*0));
+ namedColors["White"] = QColor( (int)(255.0*1), (int)(255.0*1), (int)(255.0*1));
+ namedColors["Maroon"] = QColor( (int)(255.0*0.68), (int)(255.0*0), (int)(255.0*0));
+ namedColors["Orange"] = QColor( (int)(255.0*1), (int)(255.0*0.39), (int)(255.0*0.13));
+ namedColors["Orchid"] = QColor( (int)(255.0*0.68), (int)(255.0*0.36), (int)(255.0*1));
+ namedColors["Purple"] = QColor( (int)(255.0*0.55), (int)(255.0*0.14), (int)(255.0*1));
+ namedColors["Salmon"] = QColor( (int)(255.0*1), (int)(255.0*0.47), (int)(255.0*0.62));
+ namedColors["Violet"] = QColor( (int)(255.0*0.21), (int)(255.0*0.12), (int)(255.0*1));
+ namedColors["Yellow"] = QColor( (int)(255.0*1), (int)(255.0*1), (int)(255.0*0));
+ namedColors["Apricot"] = QColor( (int)(255.0*1), (int)(255.0*0.68), (int)(255.0*0.48));
+ namedColors["Emerald"] = QColor( (int)(255.0*0), (int)(255.0*1), (int)(255.0*0.5));
+ namedColors["Fuchsia"] = QColor( (int)(255.0*0.45), (int)(255.0*0.01), (int)(255.0*0.92));
+ namedColors["Magenta"] = QColor( (int)(255.0*1), (int)(255.0*0), (int)(255.0*1));
+ namedColors["SkyBlue"] = QColor( (int)(255.0*0.38), (int)(255.0*1), (int)(255.0*0.88));
+ namedColors["Thistle"] = QColor( (int)(255.0*0.88), (int)(255.0*0.41), (int)(255.0*1));
+ namedColors["BrickRed"] = QColor( (int)(255.0*0.72), (int)(255.0*0), (int)(255.0*0));
+ namedColors["Cerulean"] = QColor( (int)(255.0*0.06), (int)(255.0*0.89), (int)(255.0*1));
+ namedColors["Lavender"] = QColor( (int)(255.0*1), (int)(255.0*0.52), (int)(255.0*1));
+ namedColors["Mahogany"] = QColor( (int)(255.0*0.65), (int)(255.0*0), (int)(255.0*0));
+ namedColors["Mulberry"] = QColor( (int)(255.0*0.64), (int)(255.0*0.08), (int)(255.0*0.98));
+ namedColors["NavyBlue"] = QColor( (int)(255.0*0.06), (int)(255.0*0.46), (int)(255.0*1));
+ namedColors["SeaGreen"] = QColor( (int)(255.0*0.31), (int)(255.0*1), (int)(255.0*0.5));
+ namedColors["TealBlue"] = QColor( (int)(255.0*0.12), (int)(255.0*0.98), (int)(255.0*0.64));
+ namedColors["BlueGreen"] = QColor( (int)(255.0*0.15), (int)(255.0*1), (int)(255.0*0.67));
+ namedColors["CadetBlue"] = QColor( (int)(255.0*0.38), (int)(255.0*0.43), (int)(255.0*0.77));
+ namedColors["Dandelion"] = QColor( (int)(255.0*1), (int)(255.0*0.71), (int)(255.0*0.16));
+ namedColors["Goldenrod"] = QColor( (int)(255.0*1), (int)(255.0*0.9), (int)(255.0*0.16));
+ namedColors["LimeGreen"] = QColor( (int)(255.0*0.5), (int)(255.0*1), (int)(255.0*0));
+ namedColors["OrangeRed"] = QColor( (int)(255.0*1), (int)(255.0*0), (int)(255.0*0.5));
+ namedColors["PineGreen"] = QColor( (int)(255.0*0), (int)(255.0*0.75), (int)(255.0*0.16));
+ namedColors["RawSienna"] = QColor( (int)(255.0*0.55), (int)(255.0*0), (int)(255.0*0));
+ namedColors["RedOrange"] = QColor( (int)(255.0*1), (int)(255.0*0.23), (int)(255.0*0.13));
+ namedColors["RedViolet"] = QColor( (int)(255.0*0.59), (int)(255.0*0), (int)(255.0*0.66));
+ namedColors["Rhodamine"] = QColor( (int)(255.0*1), (int)(255.0*0.18), (int)(255.0*1));
+ namedColors["RoyalBlue"] = QColor( (int)(255.0*0), (int)(255.0*0.5), (int)(255.0*1));
+ namedColors["RubineRed"] = QColor( (int)(255.0*1), (int)(255.0*0), (int)(255.0*0.87));
+ namedColors["Turquoise"] = QColor( (int)(255.0*0.15), (int)(255.0*1), (int)(255.0*0.8));
+ namedColors["VioletRed"] = QColor( (int)(255.0*1), (int)(255.0*0.19), (int)(255.0*1));
+ namedColors["Aquamarine"] = QColor( (int)(255.0*0.18), (int)(255.0*1), (int)(255.0*0.7));
+ namedColors["BlueViolet"] = QColor( (int)(255.0*0.1), (int)(255.0*0.05), (int)(255.0*0.96));
+ namedColors["DarkOrchid"] = QColor( (int)(255.0*0.6), (int)(255.0*0.2), (int)(255.0*0.8));
+ namedColors["OliveGreen"] = QColor( (int)(255.0*0), (int)(255.0*0.6), (int)(255.0*0));
+ namedColors["Periwinkle"] = QColor( (int)(255.0*0.43), (int)(255.0*0.45), (int)(255.0*1));
+ namedColors["Bittersweet"] = QColor( (int)(255.0*0.76), (int)(255.0*0.01), (int)(255.0*0));
+ namedColors["BurntOrange"] = QColor( (int)(255.0*1), (int)(255.0*0.49), (int)(255.0*0));
+ namedColors["ForestGreen"] = QColor( (int)(255.0*0), (int)(255.0*0.88), (int)(255.0*0));
+ namedColors["GreenYellow"] = QColor( (int)(255.0*0.85), (int)(255.0*1), (int)(255.0*0.31));
+ namedColors["JungleGreen"] = QColor( (int)(255.0*0.01), (int)(255.0*1), (int)(255.0*0.48));
+ namedColors["ProcessBlue"] = QColor( (int)(255.0*0.04), (int)(255.0*1), (int)(255.0*1));
+ namedColors["RoyalPurple"] = QColor( (int)(255.0*0.25), (int)(255.0*0.1), (int)(255.0*1));
+ namedColors["SpringGreen"] = QColor( (int)(255.0*0.74), (int)(255.0*1), (int)(255.0*0.24));
+ namedColors["YellowGreen"] = QColor( (int)(255.0*0.56), (int)(255.0*1), (int)(255.0*0.26));
+ namedColors["MidnightBlue"] = QColor( (int)(255.0*0), (int)(255.0*0.44), (int)(255.0*0.57));
+ namedColors["YellowOrange"] = QColor( (int)(255.0*1), (int)(255.0*0.58), (int)(255.0*0));
+ namedColors["CarnationPink"] = QColor( (int)(255.0*1), (int)(255.0*0.37), (int)(255.0*1));
+ namedColors["CornflowerBlue"] = QColor( (int)(255.0*0.35), (int)(255.0*0.87), (int)(255.0*1));
+ namedColors["WildStrawberry"] = QColor( (int)(255.0*1), (int)(255.0*0.04), (int)(255.0*0.61));
+ }
+
+ QString specType = colorSpec.section(' ', 0, 0);
+
+ if (specType.find("rgb", false) == 0) {
+ bool ok;
+
+ double r = colorSpec.section(' ', 1, 1).toDouble(&ok);
+ if ((ok == false) || (r < 0.0) || (r > 1.0))
+ return QColor();
+
+ double g = colorSpec.section(' ', 2, 2).toDouble(&ok);
+ if ((ok == false) || (g < 0.0) || (g > 1.0))
+ return QColor();
+
+ double b = colorSpec.section(' ', 3, 3).toDouble(&ok);
+ if ((ok == false) || (b < 0.0) || (b > 1.0))
+ return QColor();
+
+ return QColor((int)(r*255.0+0.5), (int)(g*255.0+0.5), (int)(b*255.0+0.5));
+ }
+
+ if (specType.find("hsb", false) == 0) {
+ bool ok;
+
+ double h = colorSpec.section(' ', 1, 1).toDouble(&ok);
+ if ((ok == false) || (h < 0.0) || (h > 1.0))
+ return QColor();
+
+ double s = colorSpec.section(' ', 2, 2).toDouble(&ok);
+ if ((ok == false) || (s < 0.0) || (s > 1.0))
+ return QColor();
+
+ double b = colorSpec.section(' ', 3, 3).toDouble(&ok);
+ if ((ok == false) || (b < 0.0) || (b > 1.0))
+ return QColor();
+
+ return QColor((int)(h*359.0+0.5), (int)(s*255.0+0.5), (int)(b*255.0+0.5), QColor::Hsv);
+ }
+
+ if (specType.find("cmyk", false) == 0) {
+ bool ok;
+
+ double c = colorSpec.section(' ', 1, 1).toDouble(&ok);
+ if ((ok == false) || (c < 0.0) || (c > 1.0))
+ return QColor();
+
+ double m = colorSpec.section(' ', 2, 2).toDouble(&ok);
+ if ((ok == false) || (m < 0.0) || (m > 1.0))
+ return QColor();
+
+ double y = colorSpec.section(' ', 3, 3).toDouble(&ok);
+ if ((ok == false) || (y < 0.0) || (y > 1.0))
+ return QColor();
+
+ double k = colorSpec.section(' ', 3, 3).toDouble(&ok);
+ if ((ok == false) || (k < 0.0) || (k > 1.0))
+ return QColor();
+
+ // Convert cmyk coordinates to rgb.
+ double r = 1.0 - c - k;
+ if (r < 0.0)
+ r = 0.0;
+ double g = 1.0 - m - k;
+ if (g < 0.0)
+ g = 0.0;
+ double b = 1.0 - y - k;
+ if (b < 0.0)
+ b = 0.0;
+
+ return QColor((int)(r*255.0+0.5), (int)(g*255.0+0.5), (int)(b*255.0+0.5));
+ }
+
+ if (specType.find("gray", false) == 0) {
+ bool ok;
+
+ double g = colorSpec.section(' ', 1, 1).toDouble(&ok);
+ if ((ok == false) || (g < 0.0) || (g > 1.0))
+ return QColor();
+
+ return QColor((int)(g*255.0+0.5), (int)(g*255.0+0.5), (int)(g*255.0+0.5));
+ }
+
+ // Check if the color is one of the known named colors.
+ QMap<QString, QColor>::Iterator f = namedColors.find(specType);
+ if (f != namedColors.end())
+ return *f;
+
+ return QColor(specType);
+}
+
+
+
+
+
+
+void dviRenderer::color_special(const QString& _cp)
+{
+ QString const cp = _cp.stripWhiteSpace();
+
+ QString command = cp.section(' ', 0, 0);
+
+ if (command == "pop") {
+ // Take color off the stack
+ if (colorStack.isEmpty())
+ printErrorMsgForSpecials( i18n("Error in DVIfile '%1', page %2. Color pop command issued when the color stack is empty." ).
+ arg(dviFile->filename).arg(current_page));
+ else
+ colorStack.pop();
+ return;
+ }
+
+ if (command == "push") {
+ // Get color specification
+ QColor const col = parseColorSpecification(cp.section(' ', 1));
+ // Set color
+ if (col.isValid())
+ colorStack.push(col);
+ else
+ colorStack.push(Qt::black);
+ return;
+ }
+
+ // Get color specification and set the color for the rest of this
+ // page
+ QColor col = parseColorSpecification(cp);
+ // Set color
+ if (col.isValid())
+ globalColor = col;
+ else
+ globalColor = Qt::black;
+ return;
+}
+
+
+void dviRenderer::html_href_special(const QString& _cp)
+{
+ QString cp = _cp;
+ cp.truncate(cp.find('"'));
+
+#ifdef DEBUG_SPECIAL
+ kdDebug(4300) << "HTML-special, href " << cp.latin1() << endl;
+#endif
+ HTML_href = new QString(cp);
+}
+
+
+void dviRenderer::html_anchor_end()
+{
+#ifdef DEBUG_SPECIAL
+ kdDebug(4300) << "HTML-special, anchor-end" << endl;
+#endif
+
+ if (HTML_href != NULL) {
+ delete HTML_href;
+ HTML_href = NULL;
+ }
+}
+
+
+void dviRenderer::source_special(const QString& cp)
+{
+ // only when rendering really takes place: set source_href to the
+ // current special string. When characters are rendered, the
+ // rendering routine will then generate a DVI_HyperLink and add it
+ // to the proper list. This DVI_HyperLink is used to match mouse
+ // positions with the hyperlinks for inverse search.
+ if (source_href)
+ *source_href = cp;
+ else
+ source_href = new QString(cp);
+}
+
+
+void parse_special_argument(const QString& strg, const char* argument_name, int* variable)
+{
+ int index = strg.find(argument_name);
+ if (index >= 0) {
+ QString tmp = strg.mid(index + strlen(argument_name));
+ index = tmp.find(' ');
+ if (index >= 0)
+ tmp.truncate(index);
+
+ bool OK;
+ float const tmp_float = tmp.toFloat(&OK);
+
+ if (OK)
+ *variable = int(tmp_float+0.5);
+ else
+ // Maybe we should open a dialog here.
+ kdError(4300) << i18n("Malformed parameter in the epsf special command.\n"
+ "Expected a float to follow %1 in %2")
+ .arg(argument_name).arg(strg) << endl;
+ }
+}
+
+
+void dviRenderer::epsf_special(const QString& cp)
+{
+#ifdef DEBUG_SPECIAL
+ kdDebug(4300) << "epsf-special: psfile=" << cp <<endl;
+#endif
+
+ QString include_command = cp.simplifyWhiteSpace();
+
+ // The line is supposed to start with "..ile=", and then comes the
+ // filename. Figure out what the filename is and stow it away. Of
+ // course, this does not work if the filename contains spaces
+ // (already the simplifyWhiteSpace() above is wrong). If you have
+ // files like this, go away.
+ QString EPSfilename_orig = include_command;
+ EPSfilename_orig.truncate(EPSfilename_orig.find(' '));
+
+ // Strip enclosing quotation marks which are included by some LaTeX
+ // macro packages (but not by others). This probably means that
+ // graphic files are no longer found if the filename really does
+ // contain quotes, but we don't really care that much.
+ if ((EPSfilename_orig.at(0) == '\"') && (EPSfilename_orig.at(EPSfilename_orig.length()-1) == '\"')) {
+ EPSfilename_orig = EPSfilename_orig.mid(1,EPSfilename_orig.length()-2);
+ }
+ QString EPSfilename = ghostscript_interface::locateEPSfile(EPSfilename_orig, baseURL);
+
+ // Now parse the arguments.
+ int llx = 0;
+ int lly = 0;
+ int urx = 0;
+ int ury = 0;
+ int rwi = 0;
+ int rhi = 0;
+ int angle = 0;
+
+ // just to avoid ambiguities; the filename could contain keywords
+ include_command = include_command.mid(include_command.find(' '));
+
+ parse_special_argument(include_command, "llx=", &llx);
+ parse_special_argument(include_command, "lly=", &lly);
+ parse_special_argument(include_command, "urx=", &urx);
+ parse_special_argument(include_command, "ury=", &ury);
+ parse_special_argument(include_command, "rwi=", &rwi);
+ parse_special_argument(include_command, "rhi=", &rhi);
+ parse_special_argument(include_command, "angle=", &angle);
+
+ // If we have a png, gif, jpeg or mng file, we need to draw it here.
+ KMimeType::Ptr const mime_type = KMimeType::findByFileContent(EPSfilename);
+ QString const & mime_type_name = mime_type->name();
+ bool const isGFX = (mime_type_name == "image/png" ||
+ mime_type_name == "image/gif" ||
+ mime_type_name == "image/jpeg" ||
+ mime_type_name == "video/x-mng");
+
+ // So, if we do not have a PostScript file, but a graphics file, and
+ // if that file exists, we draw it here.
+ if (isGFX && QFile::exists(EPSfilename)) {
+ // Don't show PostScript, just draw the bounding box. For this,
+ // calculate the size of the bounding box in Pixels.
+ double bbox_width = urx - llx;
+ double bbox_height = ury - lly;
+
+ if ((rwi != 0)&&(bbox_width != 0)) {
+ bbox_height *= rwi/bbox_width;
+ bbox_width = rwi;
+ }
+ if ((rhi != 0)&&(bbox_height != 0)) {
+ bbox_width *= rhi/bbox_height;
+ bbox_height = rhi;
+ }
+
+ double fontPixelPerDVIunit = dviFile->getCmPerDVIunit() * 1200.0/2.54;
+
+ bbox_width *= 0.1 * 65536.0*fontPixelPerDVIunit / shrinkfactor;
+ bbox_height *= 0.1 * 65536.0*fontPixelPerDVIunit / shrinkfactor;
+
+ QImage image(EPSfilename);
+ image = image.smoothScale((int)(bbox_width), (int)(bbox_height));
+ foreGroundPainter->drawImage( ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))), currinf.data.pxl_v - (int)bbox_height, image);
+ return;
+ }
+
+ if (!_postscript || !QFile::exists(EPSfilename)) {
+ // Don't show PostScript, just draw the bounding box. For this,
+ // calculate the size of the bounding box in Pixels.
+ double bbox_width = urx - llx;
+ double bbox_height = ury - lly;
+
+ if ((rwi != 0)&&(bbox_width != 0)) {
+ bbox_height *= rwi/bbox_width;
+ bbox_width = rwi;
+ }
+ if ((rhi != 0)&&(bbox_height != 0)) {
+ bbox_width *= rhi/bbox_height;
+ bbox_height = rhi;
+ }
+
+ double fontPixelPerDVIunit = dviFile->getCmPerDVIunit() * 1200.0/2.54;
+
+ bbox_width *= 0.1 * 65536.0*fontPixelPerDVIunit / shrinkfactor;
+ bbox_height *= 0.1 * 65536.0*fontPixelPerDVIunit / shrinkfactor;
+
+ QRect bbox(((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536))), currinf.data.pxl_v - (int)bbox_height,
+ (int)bbox_width, (int)bbox_height);
+
+ foreGroundPainter->save();
+
+ if (QFile::exists(EPSfilename))
+ foreGroundPainter->setBrush(Qt::lightGray);
+ else
+ foreGroundPainter->setBrush(Qt::red);
+ foreGroundPainter->setPen(Qt::black);
+ foreGroundPainter->drawRoundRect(bbox, 2, 2);
+ QFont f = foreGroundPainter->font();
+ f.setPointSize(8);
+ foreGroundPainter->setFont(f);
+ if (QFile::exists(EPSfilename))
+ foreGroundPainter->drawText (bbox, (int)(Qt::AlignCenter), EPSfilename_orig, -1);
+ else
+ foreGroundPainter->drawText (bbox, (int)(Qt::AlignCenter),
+ i18n("File not found: \n %1").arg(EPSfilename_orig), -1);
+ foreGroundPainter->restore();
+ }
+
+ return;
+}
+
+
+void dviRenderer::TPIC_flushPath_special()
+{
+#ifdef DEBUG_SPECIAL
+ kdDebug(4300) << "TPIC special flushPath" << endl;
+#endif
+
+ if (number_of_elements_in_path == 0) {
+ printErrorMsgForSpecials("TPIC special flushPath called when path was empty.");
+ return;
+ }
+
+ QPen pen(Qt::black, (int)(penWidth_in_mInch*resolutionInDPI/1000.0 + 0.5)); // Sets the pen size in milli-inches
+ foreGroundPainter->setPen(pen);
+ foreGroundPainter->drawPolyline(TPIC_path, 0, number_of_elements_in_path);
+ number_of_elements_in_path = 0;
+}
+
+
+void dviRenderer::TPIC_addPath_special(const QString& cp)
+{
+#ifdef DEBUG_SPECIAL
+ kdDebug(4300) << "TPIC special addPath: " << cp << endl;
+#endif
+
+ // Adds a point to the path list
+ QString cp_noWhiteSpace = cp.stripWhiteSpace();
+ bool ok;
+ float xKoord = cp_noWhiteSpace.section(' ', 0, 0).toFloat(&ok);
+ if (ok == false) {
+ printErrorMsgForSpecials( QString("TPIC special; cannot parse first argument in 'pn %1'.").arg(cp) );
+ return;
+ }
+ float yKoord = cp_noWhiteSpace.section(' ', 1, 1).toFloat(&ok);
+ if (ok == false) {
+ printErrorMsgForSpecials( QString("TPIC special; cannot parse second argument in 'pn %1'.").arg(cp) );
+ return;
+ }
+
+ float mag = dviFile->getMagnification()/1000.0;
+
+ int x = (int)( currinf.data.dvi_h/(shrinkfactor*65536.0) + mag*xKoord*resolutionInDPI/1000.0 + 0.5 );
+ int y = (int)( currinf.data.pxl_v + mag*yKoord*resolutionInDPI/1000.0 + 0.5 );
+
+ // Initialize the point array used to store the path
+ if (TPIC_path.size() == 0)
+ number_of_elements_in_path = 0;
+ if (TPIC_path.size() == number_of_elements_in_path)
+ TPIC_path.resize(number_of_elements_in_path+100);
+ TPIC_path.setPoint(number_of_elements_in_path++, x, y);
+}
+
+
+void dviRenderer::TPIC_setPen_special(const QString& cp)
+{
+#ifdef DEBUG_SPECIAL
+ kdDebug(4300) << "TPIC special setPen: " << cp << endl;
+#endif
+
+ // Sets the pen size in milli-inches
+ bool ok;
+ penWidth_in_mInch = cp.stripWhiteSpace().toFloat(&ok);
+ if (ok == false) {
+ printErrorMsgForSpecials( QString("TPIC special; cannot parse argument in 'pn %1'.").arg(cp) );
+ penWidth_in_mInch = 0.0;
+ return;
+ }
+}
+
+
+void dviRenderer::applicationDoSpecial(char *cp)
+{
+ QString special_command(cp);
+
+ // First come specials which is only interpreted during rendering,
+ // and NOT during the prescan phase
+
+ // font color specials
+ if (strncasecmp(cp, "color", 5) == 0) {
+ color_special(special_command.mid(5));
+ return;
+ }
+
+ // HTML reference
+ if (strncasecmp(cp, "html:<A href=", 13) == 0) {
+ html_href_special(special_command.mid(14));
+ return;
+ }
+
+ // HTML anchor end
+ if (strncasecmp(cp, "html:</A>", 9) == 0) {
+ html_anchor_end();
+ return;
+ }
+
+ // TPIC specials
+ if (strncasecmp(cp, "pn", 2) == 0) {
+ TPIC_setPen_special(special_command.mid(2));
+ return;
+ }
+ if (strncasecmp(cp, "pa ", 3) == 0) {
+ TPIC_addPath_special(special_command.mid(3));
+ return;
+ }
+ if (strncasecmp(cp, "fp", 2) == 0) {
+ TPIC_flushPath_special();
+ return;
+ }
+
+ // Encapsulated Postscript File
+ if (strncasecmp(cp, "PSfile=", 7) == 0) {
+ epsf_special(special_command.mid(7));
+ return;
+ }
+
+ // source special
+ if (strncasecmp(cp, "src:", 4) == 0) {
+ source_special(special_command.mid(4));
+ return;
+ }
+
+ // Unfortunately, in some TeX distribution the hyperref package uses
+ // the dvips driver by default, rather than the hypertex driver. As
+ // a result, the DVI files produced are full of PostScript that
+ // specifies links and anchors, and KDVI would call the ghostscript
+ // interpreter for every page which makes it really slow. This is a
+ // major nuisance, so that we try to filter and interpret the
+ // hypertex generated PostScript here.
+ if (special_command.startsWith("ps:SDict begin")) {
+
+ // Hyperref: start of hyperref rectangle. At this stage it is not
+ // yet clear if the rectangle will conain a hyperlink, an anchor,
+ // or another type of object. We suspect that this rectangle will
+ // define a hyperlink, allocate a QString and set HTML_href to
+ // point to this string. The string contains the name of the
+ // destination which ---due to the nature of the PostScript
+ // language--- will be defined only after characters are drawn and
+ // the hyperref rectangle has been closed. We use "glopglyph" as a
+ // temporary name. Since the pointer HTML_href is not NULL, the
+ // chracter drawing routines will now underline all characters in
+ // blue to point out that they correspond to a hyperlink. Also, as
+ // soon as characters are drawn, the drawing routines will
+ // allocate a Hyperlink and add it to the top of the vector
+ // currentlyDrawnPage->hyperLinkList.
+ if (special_command == "ps:SDict begin H.S end") {
+ // At this stage, the vector 'hyperLinkList' should not contain
+ // links with unspecified destinations (i.e. destination set to
+ // 'glopglyph'). As a protection against bad DVI files, we make
+ // sure to remove all link rectangles which point to
+ // 'glopglyph'.
+ while (!currentlyDrawnPage->hyperLinkList.isEmpty())
+ if (currentlyDrawnPage->hyperLinkList.last().linkText == "glopglyph")
+ currentlyDrawnPage->hyperLinkList.pop_back();
+ else
+ break;
+
+ HTML_href = new QString("glopglyph");
+ return;
+ }
+
+ // Hyperref: end of hyperref rectangle of unknown type or hyperref
+ // link rectangle. In these cases we set HTML_href to NULL, which
+ // causes the character drawing routines to stop drawing
+ // characters underlined in blue. Note that the name of the
+ // destination is still set to "glopglyph". In a well-formed DVI
+ // file, this special command is immediately followed by another
+ // special, where the destination is specified. This special is
+ // treated below.
+ if ((special_command == "ps:SDict begin H.R end") || special_command.endsWith("H.L end")) {
+ if (HTML_href != NULL) {
+ delete HTML_href;
+ HTML_href = NULL;
+ }
+ return; // end of hyperref rectangle
+ }
+
+ // Hyperref: end of anchor rectangle. If this special is
+ // encountered, the rectangle, which was started with "ps:SDict
+ // begin H.S end" does not contain a link, but an anchor for a
+ // link. Anchors, however, have already been dealt with in the
+ // prescan phase and will not be considered here. Thus, we set
+ // HTML_href to NULL so that character drawing routines will no
+ // longer underline hyperlinks in blue, and remove the link from
+ // the hyperLinkList. NOTE: in a well-formed DVI file, the "H.A"
+ // special comes directly after the "H.S" special. A
+ // hyperlink-anchor rectangle therefore never contains characters,
+ // so no character will by accidentally underlined in blue.
+ if (special_command.endsWith("H.A end")) {
+ if (HTML_href != NULL) {
+ delete HTML_href;
+ HTML_href = NULL;
+ }
+ while (!currentlyDrawnPage->hyperLinkList.isEmpty())
+ if (currentlyDrawnPage->hyperLinkList.last().linkText == "glopglyph")
+ currentlyDrawnPage->hyperLinkList.pop_back();
+ else
+ break;
+ return; // end of hyperref anchor
+ }
+
+ // Hyperref: specification of a hyperref link rectangle's
+ // destination. As mentioned above, the destination of a hyperlink
+ // is specified only AFTER the rectangle has been specified. We
+ // will therefore go through the list of rectangles stored in
+ // currentlyDrawnPage->hyperLinkList, find those whose destination
+ // is open and fill in the value found here. NOTE: the character
+ // drawing routines sometimes split a single hyperlink rectangle
+ // into several rectangles (e.g. if the font changes, or when a
+ // line break is encountered)
+ if (special_command.startsWith("ps:SDict begin [") && special_command.endsWith(" pdfmark end")) {
+ if (!currentlyDrawnPage->hyperLinkList.isEmpty()) {
+ // Parse the PostScript literal text string inside parentheses
+ // and store it into 'targetName'. The scanner works
+ // according to "PostScript language reference, third edition"
+ // - Sec. 3.2.2. The specification is implemented completely:
+ // balanced parentheses and all escape sequences are
+ // considered.
+ QString tmpTargetName = special_command.section('(', 1);
+ QString targetName;
+ int parencount = 1;
+ for(int i=0; i<tmpTargetName.length(); i++) {
+ if (tmpTargetName[i] == '(')
+ if ((i == 0) || (tmpTargetName[i-1] != '\\'))
+ parencount++;
+ if (tmpTargetName[i] == ')')
+ if ((i == 0) || (tmpTargetName[i-1] != '\\'))
+ parencount--;
+ if (parencount == 0)
+ break;
+ targetName += tmpTargetName[i];
+ }
+ targetName = PDFencodingToQString(targetName);
+
+ QValueVector<Hyperlink>::iterator it;
+ for( it = currentlyDrawnPage->hyperLinkList.begin(); it != currentlyDrawnPage->hyperLinkList.end(); ++it )
+ if (it->linkText == "glopglyph")
+ it->linkText = targetName;
+ }
+ return; // hyperref definition of link/anchor/bookmark/etc
+ }
+ }
+
+ // Detect text rotation specials that are included by the graphicx
+ // package. If one of these specials is found, the state of the
+ // painter is saved, and the coordinate system is rotated
+ // accordingly
+ if (special_command.startsWith("ps: gsave currentpoint currentpoint translate ") &&
+ special_command.endsWith(" neg rotate neg exch neg exch translate") ) {
+ bool ok;
+ double angle = special_command.section(' ', 5, 5).toDouble(&ok);
+ if (ok == true) {
+ int x = ((int) ((currinf.data.dvi_h) / (shrinkfactor * 65536)));
+ int y = currinf.data.pxl_v;
+
+ foreGroundPainter->save();
+ // Rotate about the current point
+ foreGroundPainter->translate(x,y);
+ foreGroundPainter->rotate(-angle);
+ foreGroundPainter->translate(-x,-y);
+ } else
+ printErrorMsgForSpecials( i18n("Error in DVIfile '%1', page %2. Could not interpret angle in text rotation special." ).
+ arg(dviFile->filename).arg(current_page));
+ }
+
+ // The graphicx package marks the end of rotated text with this
+ // special. The state of the painter is restored.
+ if (special_command == "ps: currentpoint grestore moveto") {
+ foreGroundPainter->restore();
+ }
+
+ // The following special commands are not used here; they are of
+ // interest only during the prescan phase. We recognize them here
+ // anyway, to make sure that KDVI doesn't complain about
+ // unrecognized special commands.
+ if ((cp[0] == '!') ||
+ (cp[0] == '"') ||
+ (strncasecmp(cp, "html:<A name=", 13) == 0) ||
+ (strncasecmp(cp, "ps:", 3) == 0) ||
+ (strncasecmp(cp, "papersize", 9) == 0) ||
+ (strncasecmp(cp, "header", 6) == 0) ||
+ (strncasecmp(cp, "background", 10) == 0) )
+ return;
+
+ printErrorMsgForSpecials(i18n("The special command '%1' is not implemented.").arg(special_command));
+ return;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-15 00:25:24 +0000