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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /kdvi/TeXFontDefinition.cpp
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
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
Diffstat (limited to 'kdvi/TeXFontDefinition.cpp')
-rw-r--r--kdvi/TeXFontDefinition.cpp250
1 files changed, 250 insertions, 0 deletions
diff --git a/kdvi/TeXFontDefinition.cpp b/kdvi/TeXFontDefinition.cpp
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+++ b/kdvi/TeXFontDefinition.cpp
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+// $Id$
+#include <config.h>
+
+#include <kdebug.h>
+#include <klocale.h>
+#include <qfile.h>
+
+#include "dviRenderer.h"
+#include "fontpool.h"
+#include "kdvi.h"
+#ifdef HAVE_FREETYPE
+#include "TeXFont_PFB.h"
+#endif
+#include "TeXFont_PK.h"
+#include "TeXFont_TFM.h"
+#include "TeXFontDefinition.h"
+#include "xdvi.h"
+
+extern const int MFResolutions[];
+
+#define PK_PRE 247
+#define PK_ID 89
+#define PK_MAGIC (PK_PRE << 8) + PK_ID
+#define GF_PRE 247
+#define GF_ID 131
+#define GF_MAGIC (GF_PRE << 8) + GF_ID
+#define VF_PRE 247
+#define VF_ID_BYTE 202
+#define VF_MAGIC (VF_PRE << 8) + VF_ID_BYTE
+
+// #define DEBUG_FONT
+
+
+TeXFontDefinition::TeXFontDefinition(QString nfontname, double _displayResolution_in_dpi, Q_UINT32 chk, Q_INT32 _scaled_size_in_DVI_units,
+ class fontPool *pool, double _enlargement)
+{
+#ifdef DEBUG_FONT
+ kdDebug(4300) << "TeXFontDefinition::TeXFontDefinition(...); fontname=" << nfontname << ", enlargement=" << _enlargement << endl;
+#endif
+
+ enlargement = _enlargement;
+ font_pool = pool;
+ fontname = nfontname;
+ font = 0;
+ displayResolution_in_dpi = _displayResolution_in_dpi;
+ checksum = chk;
+ flags = TeXFontDefinition::FONT_IN_USE;
+ file = 0;
+ filename = QString::null;
+ scaled_size_in_DVI_units = _scaled_size_in_DVI_units;
+
+ macrotable = 0;
+
+ // By default, this font contains only empty characters. After the
+ // font has been loaded, this function pointer will be replaced by
+ // another one.
+ set_char_p = &dviRenderer::set_empty_char;
+}
+
+
+TeXFontDefinition::~TeXFontDefinition()
+{
+#ifdef DEBUG_FONT
+ kdDebug(4300) << "discarding font " << fontname << " at " << (int)(enlargement * MFResolutions[font_pool->getMetafontMode()] + 0.5) << " dpi" << endl;
+#endif
+
+ if (font != 0) {
+ delete font;
+ font = 0;
+ }
+ if (macrotable != 0) {
+ delete [] macrotable;
+ macrotable = 0;
+ }
+
+ if (flags & FONT_LOADED) {
+ if (file != 0) {
+ fclose(file);
+ file = 0;
+ }
+ if (flags & FONT_VIRTUAL)
+ vf_table.clear();
+ }
+}
+
+
+void TeXFontDefinition::fontNameReceiver(const QString& fname)
+{
+#ifdef DEBUG_FONT
+ kdDebug(4300) << "void TeXFontDefinition::fontNameReceiver( " << fname << " )" << endl;
+#endif
+
+ flags |= TeXFontDefinition::FONT_LOADED;
+ filename = fname;
+#ifdef HAVE_FREETYPE
+ fullFontName = QString::null;
+ fullEncodingName = QString::null;
+#endif
+
+ file = fopen(QFile::encodeName(filename), "r");
+ // Check if the file could be opened. If not, try to find the file
+ // in the DVI file's directory. If that works, modify the filename
+ // accordingly and go on.
+ if (file == 0) {
+ QString filename_test(font_pool->getExtraSearchPath() + "/" + filename);
+ file = fopen( QFile::encodeName(filename_test), "r");
+ if (file == 0) {
+ kdError(4300) << i18n("Cannot find font %1, file %2.").arg(fontname).arg(filename) << endl;
+ return;
+ } else
+ filename = filename_test;
+ }
+
+ set_char_p = &dviRenderer::set_char;
+ int magic = two(file);
+
+ if (fname.endsWith("pk"))
+ if (magic == PK_MAGIC) {
+ fclose(file);
+ file = 0;
+ font = new TeXFont_PK(this);
+ set_char_p = &dviRenderer::set_char;
+ if ((checksum != 0) && (checksum != font->checksum))
+ kdWarning(4300) << i18n("Checksum mismatch for font file %1").arg(filename) << endl;
+ fontTypeName = "TeX PK";
+ return;
+ }
+
+ if (fname.endsWith(".vf"))
+ if (magic == VF_MAGIC) {
+ read_VF_index();
+ set_char_p = &dviRenderer::set_vf_char;
+ fontTypeName = i18n("TeX virtual");
+ return;
+ }
+
+ if (fname.endsWith(".tfm")) {
+ fclose(file);
+ file = 0;
+ font = new TeXFont_TFM(this);
+ set_char_p = &dviRenderer::set_char;
+ fontTypeName = i18n("TeX Font Metric");
+ return;
+ }
+
+ // None of these known types? Then it should be one of the font
+ // formats that are handled by the FreeType library
+ fclose(file);
+ file = 0;
+#ifdef HAVE_FREETYPE
+ // Find the encoding for that font
+ const QString &enc = font_pool->fontsByTeXName.findEncoding(fontname);
+
+ if (enc.isEmpty() == false) {
+#ifdef DEBUG_FONT
+ kdDebug(4300) << "Font " << fontname << " uses encoding " << enc << endl;
+#endif
+ font = new TeXFont_PFB(this, font_pool->encodingPool.findByName(enc), font_pool->fontsByTeXName.findSlant(fontname) );
+ } else {
+#ifdef DEBUG_FONT
+ kdDebug(4300) << "Font " << fontname << " does not have an encoding." << endl;
+#endif
+ font = new TeXFont_PFB(this);
+ }
+
+ set_char_p = &dviRenderer::set_char;
+ fontTypeName = i18n("FreeType");
+ return;
+#else
+ // If we don't have the FreeType library, we should never have
+ // reached this point. Complain, and leave this font blank
+ kdError(4300) << i18n("Cannot recognize format for font file %1").arg(filename) << endl;
+#endif
+}
+
+
+void TeXFontDefinition::reset()
+{
+ if (font != 0) {
+ delete font;
+ font = 0;
+ }
+
+ if (macrotable != 0) {
+ delete [] macrotable;
+ macrotable = 0;
+ }
+
+ if (flags & FONT_LOADED) {
+ if (file != 0) {
+ fclose(file);
+ file = 0;
+ }
+ if (flags & FONT_VIRTUAL)
+ vf_table.clear();
+ }
+
+ filename = QString::null;
+ flags = TeXFontDefinition::FONT_IN_USE;
+ set_char_p = &dviRenderer::set_empty_char;
+}
+
+
+void TeXFontDefinition::setDisplayResolution(double _displayResolution_in_dpi)
+{
+ displayResolution_in_dpi = _displayResolution_in_dpi;
+ if (font != 0)
+ font->setDisplayResolution();
+}
+
+
+/** mark_as_used marks the font, and all the fonts it referrs to, as
+ used, i.e. their FONT_IN_USE-flag is set. */
+
+void TeXFontDefinition::mark_as_used()
+{
+#ifdef DEBUG_FONT
+ kdDebug(4300) << "TeXFontDefinition::mark_as_used()" << endl;
+#endif
+
+ if (flags & TeXFontDefinition::FONT_IN_USE)
+ return;
+
+ flags |= TeXFontDefinition::FONT_IN_USE;
+
+ // For virtual fonts, also go through the list of referred fonts
+ if (flags & TeXFontDefinition::FONT_VIRTUAL) {
+ QIntDictIterator<TeXFontDefinition> it(vf_table);
+ while( it.current() ) {
+ it.current()->mark_as_used();
+ ++it;
+ }
+ }
+}
+
+
+macro::macro()
+{
+ pos = 0; /* address of first byte of macro */
+ end = 0; /* address of last+1 byte */
+ dvi_advance_in_units_of_design_size_by_2e20 = 0; /* DVI units to move reference point */
+ free_me = false;
+}
+
+
+macro::~macro()
+{
+ if ((pos != 0L) && (free_me == true))
+ delete [] pos;
+}