mirror of
https://invent.kde.org/graphics/okular
synced 2024-10-14 03:42:34 +00:00
658e07be1c
svn path=/trunk/kdegraphics/kdvi/; revision=113143
362 lines
11 KiB
C++
362 lines
11 KiB
C++
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// special.cpp
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// Methods for dviwin which deal with "\special" commands found in the
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// DVI file
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// Copyright 2000--2001, Stefan Kebekus (stefan.kebekus@uni-bayreuth.de).
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#include <qfile.h>
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#include <qdir.h>
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#include <qfileinfo.h>
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#include <qstringlist.h>
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#include <kdebug.h>
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#include <klocale.h>
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#include "dviwin.h"
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#include "kdvi.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include "oconfig.h"
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extern QPainter foreGroundPaint;
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void dviWindow::html_anchor_special(QString cp)
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{
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if (PostScriptOutPutString != NULL) { // only during scanning, not during rendering
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cp.truncate(cp.find('"'));
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#ifdef DEBUG_SPECIAL
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kdDebug(4300) << "HTML-special, anchor " << cp.latin1() << endl;
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kdDebug(4300) << "page " << current_page << endl;
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#endif
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AnchorList_String[numAnchors] = cp;
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AnchorList_Page[numAnchors] = current_page;
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AnchorList_Vert[numAnchors] = DVI_V/65536; // multiply with zoom to get pixel coords
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if (numAnchors < MAX_ANCHORS-2)
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numAnchors++;
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}
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}
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void dviWindow::html_href_special(QString cp)
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{
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cp.truncate(cp.find('"'));
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#ifdef DEBUG_SPECIAL
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kdDebug(4300) << "HTML-special, href " << cp.latin1() << endl;
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#endif
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if (!PostScriptOutPutString) { // only when rendering really takes place
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HTML_href = new QString(cp);
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}
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}
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void dviWindow::html_anchor_end(void)
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{
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#ifdef DEBUG_SPECIAL
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kdDebug(4300) << "HTML-special, anchor-end" << endl;
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#endif
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if (HTML_href != NULL) {
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delete HTML_href;
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HTML_href = NULL;
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}
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}
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void dviWindow::header_special(QString cp)
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{
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#ifdef DEBUG_SPECIAL
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kdDebug(4300) << "PostScript-special, header " << cp.latin1() << endl;
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#endif
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if (PostScriptOutPutString && QFile::exists(cp)) {
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PS_interface->PostScriptHeaderString->append( QString(" (%1) run\n").arg(cp) );
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}
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}
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void dviWindow::source_special(QString cp)
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{
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// only when rendering really takes place
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if (!PostScriptOutPutString)
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if (source_href)
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*source_href = cp;
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else
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source_href = new QString(cp);
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}
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static void parse_special_argument(QString strg, const char *argument_name, int *variable)
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{
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bool OK;
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int index = strg.find(argument_name);
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if (index >= 0) {
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QString tmp = strg.mid(index + strlen(argument_name));
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tmp.truncate(tmp.find(' '));
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int tmp_int = tmp.toInt(&OK);
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if (OK)
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*variable = tmp_int;
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else
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// Maybe we should open a dialog here.
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kdError(4300) << i18n("Malformed parameter in the epsf special command.") << endl;
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}
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}
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void dviWindow::epsf_special(QString cp)
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{
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#ifdef DEBUG_SPECIAL
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kdDebug(4300) << "epsf-special: psfile=" << cp <<endl;
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#endif
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QString include_command = cp.simplifyWhiteSpace();
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// The line is supposed to start with "..ile=", and then comes the
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// filename. Figure out what the filename is and stow it away. Of
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// course, this does not work if the filename contains spaces
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// (already the simplifyWhiteSpace() above is wrong). If you have
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// files like this, go away.
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QString EPSfilename = include_command;
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EPSfilename.truncate(EPSfilename.find(' '));
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// Strip enclosing quotation marks which are included by some LaTeX
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// macro packages (but not by others). This probably means that
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// graphic files are no longer found if the filename really does
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// contain quotes, but we don't really care that much.
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if ((EPSfilename.at(0) == '\"') && (EPSfilename.at(EPSfilename.length()-1) == '\"')) {
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EPSfilename = EPSfilename.mid(1,EPSfilename.length()-2);
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}
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// Now see if the Gfx file exists...
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if (! QFile::exists(EPSfilename)) {
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QFileInfo fi1(dviFile->filename);
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QFileInfo fi2(fi1.dir(),EPSfilename);
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if (fi2.exists())
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EPSfilename = fi2.absFilePath();
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else if (QFile::exists(EPSfilename + QString::fromLatin1(".gz"))) { //try harder to find a gzipped file
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EPSfilename = EPSfilename + QString::fromLatin1(".gz");
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//kdDebug(4300) << "gzEps=" << EPSfilename <<endl;
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}
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else { //try even harder :)
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QString texInputs = QString::fromLocal8Bit(getenv("TEXINPUTS"));
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QStringList texList = QStringList::split(":", texInputs);
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QStringList::Iterator it;
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for (it=texList.begin(); it!=texList.end(); ++it) {
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QString temp = (*it) + "/" + EPSfilename;
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if (QFile::exists(temp)) {
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//kdDebug(4300) << "Found it! epsFile=" << temp.local8Bit() <<endl;
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EPSfilename = temp;
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break;
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}
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}
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}
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}
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// Now parse the arguments.
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int llx = 0;
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int lly = 0;
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int urx = 0;
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int ury = 0;
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int rwi = 0;
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int rhi = 0;
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int angle = 0;
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// just to avoid ambiguities; the filename could contain keywords
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include_command = include_command.mid(include_command.find(' '));
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parse_special_argument(include_command, "llx=", &llx);
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parse_special_argument(include_command, "lly=", &lly);
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parse_special_argument(include_command, "urx=", &urx);
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parse_special_argument(include_command, "ury=", &ury);
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parse_special_argument(include_command, "rwi=", &rwi);
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parse_special_argument(include_command, "rhi=", &rhi);
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parse_special_argument(include_command, "angle=", &angle);
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if (PostScriptOutPutString) {
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if (QFile::exists(EPSfilename)) {
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double PS_H = (DVI_H*300.0)/(65536*basedpi)-300;
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double PS_V = (DVI_V*300.0)/(65536*basedpi)-300;
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PostScriptOutPutString->append( QString(" %1 %2 moveto\n").arg(PS_H).arg(PS_V) );
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PostScriptOutPutString->append( "@beginspecial " );
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PostScriptOutPutString->append( QString(" %1 @llx").arg(llx) );
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PostScriptOutPutString->append( QString(" %1 @lly").arg(lly) );
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PostScriptOutPutString->append( QString(" %1 @urx").arg(urx) );
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PostScriptOutPutString->append( QString(" %1 @ury").arg(ury) );
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if (rwi != 0)
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PostScriptOutPutString->append( QString(" %1 @rwi").arg(rwi) );
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if (rhi != 0)
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PostScriptOutPutString->append( QString(" %1 @rhi").arg(rhi) );
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if (angle != 0)
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PostScriptOutPutString->append( QString(" %1 @angle").arg(angle) );
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PostScriptOutPutString->append( " @setspecial \n" );
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PostScriptOutPutString->append( QString(" (%1) run\n").arg(EPSfilename) );
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PostScriptOutPutString->append( "@endspecial \n" );
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}
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} else {
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if (!_postscript || !QFile::exists(EPSfilename)) {
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// Don't show PostScript, just draw the bounding box. For this,
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// calculate the size of the bounding box in Pixels.
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double bbox_width = urx - llx;
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double bbox_height = ury - lly;
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if ((rwi != 0)&&(bbox_width != 0)) {
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bbox_height *= rwi/bbox_width;
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bbox_width = rwi;
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}
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if ((rhi != 0)&&(bbox_height != 0)) {
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bbox_width *= rhi/bbox_height;
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bbox_height = rhi;
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}
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bbox_width *= 0.1 * dviFile->dimconv / shrink_factor;
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bbox_height *= 0.1 * dviFile->dimconv / shrink_factor;
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QRect bbox(PXL_H - currwin.base_x, PXL_V - currwin.base_y - (int)bbox_height, (int)bbox_width, (int)bbox_height);
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foreGroundPaint.save();
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if (QFile::exists(EPSfilename))
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foreGroundPaint.setBrush(Qt::lightGray);
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else
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foreGroundPaint.setBrush(Qt::red);
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foreGroundPaint.setPen(Qt::black);
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foreGroundPaint.drawRoundRect(bbox, 2, 2);
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if (QFile::exists(EPSfilename))
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foreGroundPaint.drawText (bbox, (int)(Qt::AlignCenter), EPSfilename, -1, &bbox);
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else
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foreGroundPaint.drawText (bbox, (int)(Qt::AlignCenter),
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QString(i18n("File not found:\n %1")).arg(EPSfilename), -1, &bbox);
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foreGroundPaint.restore();
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}
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}
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return;
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}
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void dviWindow::bang_special(QString cp)
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{
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#ifdef DEBUG_SPECIAL
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kdDebug(4300) << "PostScript-special, literal header " << cp.latin1() << endl;
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#endif
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if (currwin.win == mane.win && PostScriptOutPutString) {
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PS_interface->PostScriptHeaderString->append( " @defspecial \n" );
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PS_interface->PostScriptHeaderString->append( cp );
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PS_interface->PostScriptHeaderString->append( " @fedspecial \n" );
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}
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}
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void dviWindow::quote_special(QString cp)
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{
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#ifdef DEBUG_SPECIAL
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kdError(4300) << "PostScript-special, literal PostScript " << cp.latin1() << endl;
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#endif
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if (currwin.win == mane.win && PostScriptOutPutString) {
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double PS_H = (DVI_H*300.0)/(65536*basedpi)-300;
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double PS_V = (DVI_V*300.0)/(65536*basedpi)-300;
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PostScriptOutPutString->append( QString(" %1 %2 moveto\n").arg(PS_H).arg(PS_V) );
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PostScriptOutPutString->append( " @beginspecial @setspecial \n" );
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PostScriptOutPutString->append( cp );
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PostScriptOutPutString->append( " @endspecial \n" );
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}
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}
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void dviWindow::ps_special(QString cp)
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{
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#ifdef DEBUG_SPECIAL
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kdError(4300) << "PostScript-special, direct PostScript " << cp.latin1() << endl;
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#endif
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if (currwin.win == mane.win && PostScriptOutPutString) {
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double PS_H = (DVI_H*300.0)/(65536*basedpi)-300;
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double PS_V = (DVI_V*300.0)/(65536*basedpi)-300;
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if (cp.find("ps::[begin]", 0, false) == 0) {
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PostScriptOutPutString->append( QString(" %1 %2 moveto\n").arg(PS_H).arg(PS_V) );
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PostScriptOutPutString->append( QString(" %1\n").arg(cp.mid(11)) );
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} else {
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if (cp.find("ps::[end]", 0, false) == 0) {
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PostScriptOutPutString->append( QString(" %1\n").arg(cp.mid(9)) );
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} else {
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if (cp.find("ps::", 0, false) == 0) {
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PostScriptOutPutString->append( QString(" %1\n").arg(cp.mid(4)) );
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} else {
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PostScriptOutPutString->append( QString(" %1 %2 moveto\n").arg(PS_H).arg(PS_V) );
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PostScriptOutPutString->append( QString(" %1\n").arg(cp.mid(3)) );
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}
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}
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}
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}
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}
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void dviWindow::applicationDoSpecial(char *cp)
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{
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QString special_command(cp);
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// Encapsulated Postscript File
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if (special_command.find("src:", 0, false) == 0) {
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source_special(special_command.mid(4));
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return;
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}
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// Literal Postscript inclusion
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if (special_command[0] == '"') {
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quote_special(special_command.mid(1));
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return;
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}
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// PS-Postscript inclusion
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if (special_command.find("ps:", 0, false) == 0) {
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ps_special(special_command);
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return;
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}
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// Literal Postscript Header
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if (special_command[0] == '!') {
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bang_special(special_command.mid(1));
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return;
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}
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// Encapsulated Postscript File
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if (special_command.find("PSfile=", 0, false) == 0) {
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epsf_special(special_command.mid(7));
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return;
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}
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// Postscript Header File
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if (special_command.find("header=", 0, false) == 0) {
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header_special(special_command.mid(7));
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return;
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}
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// HTML reference
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if (special_command.find("html:<A href=", 0, false) == 0) {
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html_href_special(special_command.mid(14));
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return;
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}
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// HTML anchor end
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if (special_command.find("html:</A>", 0, false) == 0) {
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html_anchor_end();
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return;
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}
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// HTML anchor special
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if (special_command.find("html:<A name=", 0, false) == 0) {
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html_anchor_special(special_command.mid(14));
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return;
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}
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kdError(4300) << i18n("The special command \"") << special_command << i18n("\" is not implemented.") << endl;
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return;
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}
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