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, 295 insertions, 0 deletions

diff --git a/kpdf/xpdf/splash/SplashFontEngine.cc b/kpdf/xpdf/splash/SplashFontEngine.cc
new file mode 100644
index 00000000..4dc1b35b
--- /dev/null
+++ b/kpdf/xpdf/splash/SplashFontEngine.cc
@@ -0,0 +1,295 @@
+//========================================================================
+//
+// SplashFontEngine.cc
+//
+//========================================================================
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma implementation
+#endif
+
+#if HAVE_T1LIB_H
+#include <t1lib.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#ifndef WIN32
+#  include <unistd.h>
+#endif
+#include "gmem.h"
+#include "GString.h"
+#include "SplashMath.h"
+#include "SplashT1FontEngine.h"
+#include "SplashFTFontEngine.h"
+#include "SplashFontFile.h"
+#include "SplashFontFileID.h"
+#include "SplashFont.h"
+#include "SplashFontEngine.h"
+
+#ifdef VMS
+#if (__VMS_VER < 70000000)
+extern "C" int unlink(char *filename);
+#endif
+#endif
+
+//------------------------------------------------------------------------
+// SplashFontEngine
+//------------------------------------------------------------------------
+
+SplashFontEngine::SplashFontEngine(
+#if HAVE_T1LIB_H
+				   GBool enableT1lib,
+#endif
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+				   GBool enableFreeType,
+#endif
+				   GBool aa) {
+  int i;
+
+  for (i = 0; i < splashFontCacheSize; ++i) {
+    fontCache[i] = NULL;
+  }
+
+#if HAVE_T1LIB_H
+  if (enableT1lib) {
+    t1Engine = SplashT1FontEngine::init(aa);
+  } else {
+    t1Engine = NULL;
+  }
+#endif
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+  if (enableFreeType) {
+    ftEngine = SplashFTFontEngine::init(aa);
+  } else {
+    ftEngine = NULL;
+  }
+#endif
+}
+
+SplashFontEngine::~SplashFontEngine() {
+  int i;
+
+  for (i = 0; i < splashFontCacheSize; ++i) {
+    if (fontCache[i]) {
+      delete fontCache[i];
+    }
+  }
+
+#if HAVE_T1LIB_H
+  if (t1Engine) {
+    delete t1Engine;
+  }
+#endif
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+  if (ftEngine) {
+    delete ftEngine;
+  }
+#endif
+}
+
+SplashFontFile *SplashFontEngine::getFontFile(SplashFontFileID *id) {
+  SplashFontFile *fontFile;
+  int i;
+
+  for (i = 0; i < splashFontCacheSize; ++i) {
+    if (fontCache[i]) {
+      fontFile = fontCache[i]->getFontFile();
+      if (fontFile && fontFile->getID()->matches(id)) {
+	return fontFile;
+      }
+    }
+  }
+  return NULL;
+}
+
+SplashFontFile *SplashFontEngine::loadType1Font(SplashFontFileID *idA,
+						SplashFontSrc *src,
+						char **enc) {
+  SplashFontFile *fontFile;
+
+  fontFile = NULL;
+#if HAVE_T1LIB_H
+  if (!fontFile && t1Engine) {
+    fontFile = t1Engine->loadType1Font(idA, src, enc);
+  }
+#endif
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+  if (!fontFile && ftEngine) {
+    fontFile = ftEngine->loadType1Font(idA, src, enc);
+  }
+#endif
+
+  // delete the (temporary) font file -- with Unix hard link
+  // semantics, this will remove the last link; otherwise it will
+  // return an error, leaving the file to be deleted later (if
+  // loadXYZFont failed, the file will always be deleted)
+  if (src->isFile)
+    src->unref();
+
+  return fontFile;
+}
+
+SplashFontFile *SplashFontEngine::loadType1CFont(SplashFontFileID *idA,
+						 SplashFontSrc *src,
+						 char **enc) {
+  SplashFontFile *fontFile;
+
+  fontFile = NULL;
+#if HAVE_T1LIB_H
+  if (!fontFile && t1Engine) {
+    fontFile = t1Engine->loadType1CFont(idA, sec, enc);
+  }
+#endif
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+  if (!fontFile && ftEngine) {
+    fontFile = ftEngine->loadType1CFont(idA, src, enc);
+  }
+#endif
+
+  // delete the (temporary) font file -- with Unix hard link
+  // semantics, this will remove the last link; otherwise it will
+  // return an error, leaving the file to be deleted later (if
+  // loadXYZFont failed, the file will always be deleted)
+  if (src->isFile)
+    src->unref();
+
+  return fontFile;
+}
+
+SplashFontFile *SplashFontEngine::loadOpenTypeT1CFont(SplashFontFileID *idA,
+						      SplashFontSrc *src,
+						      char **enc) {
+  SplashFontFile *fontFile;
+
+  fontFile = NULL;
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+  if (!fontFile && ftEngine) {
+    fontFile = ftEngine->loadOpenTypeT1CFont(idA, src, enc);
+  }
+#endif
+
+  // delete the (temporary) font file -- with Unix hard link
+  // semantics, this will remove the last link; otherwise it will
+  // return an error, leaving the file to be deleted later (if
+  // loadXYZFont failed, the file will always be deleted)
+  if (src->isFile)
+    src->unref();
+
+  return fontFile;
+}
+
+SplashFontFile *SplashFontEngine::loadCIDFont(SplashFontFileID *idA,
+					      SplashFontSrc *src) {
+  SplashFontFile *fontFile;
+
+  fontFile = NULL;
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+  if (!fontFile && ftEngine) {
+    fontFile = ftEngine->loadCIDFont(idA, src);
+  }
+#endif
+
+  // delete the (temporary) font file -- with Unix hard link
+  // semantics, this will remove the last link; otherwise it will
+  // return an error, leaving the file to be deleted later (if
+  // loadXYZFont failed, the file will always be deleted)
+  if (src->isFile)
+    src->unref();
+
+  return fontFile;
+}
+
+SplashFontFile *SplashFontEngine::loadOpenTypeCFFFont(SplashFontFileID *idA,
+						      SplashFontSrc *src) {
+  SplashFontFile *fontFile;
+
+  fontFile = NULL;
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+  if (!fontFile && ftEngine) {
+    fontFile = ftEngine->loadOpenTypeCFFFont(idA, src);
+  }
+#endif
+
+  // delete the (temporary) font file -- with Unix hard link
+  // semantics, this will remove the last link; otherwise it will
+  // return an error, leaving the file to be deleted later (if
+  // loadXYZFont failed, the file will always be deleted)
+  if (src->isFile)
+    src->unref();
+
+  return fontFile;
+}
+
+SplashFontFile *SplashFontEngine::loadTrueTypeFont(SplashFontFileID *idA,
+						   SplashFontSrc *src,
+						   Gushort *codeToGID,
+						   int codeToGIDLen,
+						   int faceIndex) {
+  SplashFontFile *fontFile;
+
+  fontFile = NULL;
+#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
+  if (!fontFile && ftEngine) {
+    fontFile = ftEngine->loadTrueTypeFont(idA, src,
+					  codeToGID, codeToGIDLen, faceIndex);
+  }
+#endif
+
+  if (!fontFile) {
+    gfree(codeToGID);
+  }
+
+  // delete the (temporary) font file -- with Unix hard link
+  // semantics, this will remove the last link; otherwise it will
+  // return an error, leaving the file to be deleted later (if
+  // loadXYZFont failed, the file will always be deleted)
+  if (src->isFile)
+    src->unref();
+
+  return fontFile;
+}
+
+SplashFont *SplashFontEngine::getFont(SplashFontFile *fontFile,
+				      SplashCoord *textMat,
+				      SplashCoord *ctm) {
+  SplashCoord mat[4];
+  SplashFont *font;
+  int i, j;
+
+  mat[0] = textMat[0] * ctm[0] + textMat[1] * ctm[2];
+  mat[1] = -(textMat[0] * ctm[1] + textMat[1] * ctm[3]);
+  mat[2] = textMat[2] * ctm[0] + textMat[3] * ctm[2];
+  mat[3] = -(textMat[2] * ctm[1] + textMat[3] * ctm[3]);
+  if (splashAbs(mat[0] * mat[3] - mat[1] * mat[2]) < 0.01) {
+    // avoid a singular (or close-to-singular) matrix
+    mat[0] = 0.01;  mat[1] = 0;
+    mat[2] = 0;     mat[3] = 0.01;
+  }
+
+  font = fontCache[0];
+  if (font && font->matches(fontFile, mat, textMat)) {
+    return font;
+  }
+  for (i = 1; i < splashFontCacheSize; ++i) {
+    font = fontCache[i];
+    if (font && font->matches(fontFile, mat, textMat)) {
+      for (j = i; j > 0; --j) {
+	fontCache[j] = fontCache[j-1];
+      }
+      fontCache[0] = font;
+      return font;
+    }
+  }
+  font = fontFile->makeFont(mat, textMat);
+  if (fontCache[splashFontCacheSize - 1]) {
+    delete fontCache[splashFontCacheSize - 1];
+  }
+  for (j = splashFontCacheSize - 1; j > 0; --j) {
+    fontCache[j] = fontCache[j-1];
+  }
+  fontCache[0] = font;
+  return font;
+}