rename fontpreprocessor to preprocessor

CMakeLists.txt

@@ -125,8 +125,8 @@ add_executable(pdf2htmlEX
     src/ffw.c
     src/include/BackgroundRenderer.h 
     src/BackgroundRenderer.cc 
-    src/include/FontPreprocessor.h
-    src/FontPreprocessor.cc
+    src/include/Preprocessor.h
+    src/Preprocessor.cc
     src/include/util.h
     src/util.cc
     src/include/ArgParser.h

src/HTMLRenderer/general.cc

@@ -69,7 +69,7 @@ void HTMLRenderer::process(PDFDoc *doc)
     cerr << "Preprocessing: ";
     for(int i = param->first_page; i <= param->last_page ; ++i) 
     {
-        doc->displayPage(&font_preprocessor, i, param->h_dpi, param->v_dpi,
+        doc->displayPage(&preprocessor, i, param->h_dpi, param->v_dpi,
                 0, true, false, false,
                 nullptr, nullptr, nullptr, nullptr);
         cerr << "." << flush;

src/HTMLRenderer/text.cc

@@ -195,7 +195,7 @@ void HTMLRenderer::embed_font(const string & filepath, GfxFont * font, FontInfo
     if(get_metric_only)
         return;
 
-    used_map = font_preprocessor.get_code_map(hash_ref(font->getID()));
+    used_map = preprocessor.get_code_map(hash_ref(font->getID()));
 
     /*
      * Step 1

src/Preprocessor.cc

@@ -1,5 +1,5 @@
 /*
- * FontPreprocessor.h
+ * Preprocessor.cc
  *
  * Check used codes for each font
  *
@@ -12,23 +12,24 @@
 #include <GfxState.h>
 #include <GfxFont.h>
 
-#include "FontPreprocessor.h"
+#include "Preprocessor.h"
 #include "util.h"
 
 namespace pdf2htmlEX {
 
-FontPreprocessor::FontPreprocessor(void)
-    : cur_font_id(0)
+Preprocessor::Preprocessor(void)
+    : OutputDev()
+    , cur_font_id(0)
     , cur_code_map(nullptr)
 { }
 
-FontPreprocessor::~FontPreprocessor(void)
+Preprocessor::~Preprocessor(void)
 {
     for(auto iter = code_maps.begin(); iter != code_maps.end(); ++iter)
         delete [] iter->second;
 }
 
-void FontPreprocessor::drawChar(GfxState *state, double x, double y,
+void Preprocessor::drawChar(GfxState *state, double x, double y,
       double dx, double dy,
       double originX, double originY,
       CharCode code, int nBytes, Unicode *u, int uLen)
@@ -56,7 +57,7 @@ void FontPreprocessor::drawChar(GfxState *state, double x, double y,
     cur_code_map[code] = 1;
 }
 
-const char * FontPreprocessor::get_code_map (long long font_id) const
+const char * Preprocessor::get_code_map (long long font_id) const
 {
     auto iter = code_maps.find(font_id);
     return (iter == code_maps.end()) ? nullptr : (iter->second);

src/include/HTMLRenderer.h

@@ -26,7 +26,7 @@
 
 #include "Param.h"
 #include "util.h"
-#include "FontPreprocessor.h"
+#include "Preprocessor.h"
 
 /*
  * Naming Convention
@@ -358,7 +358,7 @@ class HTMLRenderer : public OutputDev
         int32_t * cur_mapping;
         char ** cur_mapping2;
         int * width_list;
-        FontPreprocessor font_preprocessor;
+        Preprocessor preprocessor;
 
         // for string formatting
         string_formatter str_fmt;

src/include/Preprocessor.h

@@ -1,5 +1,7 @@
 /*
- * FontPreprocessor.h
+ * Preprocessor.h
+ *
+ * PDF is so complicated that we have to scan twice
  *
  * Check used codes for each font
  *
@@ -8,8 +10,8 @@
  */
 
 
-#ifndef FONTPREPROCESSOR_H__
-#define FONTPREPROCESSOR_H__
+#ifndef PREPROCESSOR_H__
+#define PREPROCESSOR_H__
 
 #include <unordered_map>
 
@@ -17,10 +19,10 @@
 
 namespace pdf2htmlEX {
 
-class FontPreprocessor : public OutputDev {
+class Preprocessor : public OutputDev {
 public:
-    FontPreprocessor(void);
-    virtual ~FontPreprocessor(void);
+    Preprocessor(void);
+    virtual ~Preprocessor(void);
 
     virtual GBool upsideDown() { return gFalse; }
     virtual GBool useDrawChar() { return gTrue; }
@@ -42,4 +44,4 @@ protected:
 
 } // namespace pdf2htmlEX
 
-#endif //FONTPREPROCESSOR_H__
+#endif //PREPROCESSOR_H__