DenysMedvid/pdf2htmlEX
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This commit is contained in:
Lu Wang 2012-08-14 17:24:54 +08:00
parent 04eecc6cd3
commit e050500328
2 changed files with 61 additions and 55 deletions
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86
src/HTMLRenderer.h
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@ -37,8 +37,10 @@ class HTMLRenderer : public OutputDev
void process(PDFDoc * doc);
//---- get info about output device
////////////////////////////////////////////////////
// OutputDev interface
////////////////////////////////////////////////////
// Does this device use upside-down coordinates?
// (Upside-down means (0,0) is the top left corner of the page.)
virtual GBool upsideDown() { return gFalse; }
@ -53,19 +55,6 @@ class HTMLRenderer : public OutputDev
// Does this device need non-text content?
virtual GBool needNonText() { return gFalse; }
//----- initialization and control
virtual GBool checkPageSlice(Page *page, double hDPI, double vDPI,
int rotate, GBool useMediaBox, GBool crop,
int sliceX, int sliceY, int sliceW, int sliceH,
GBool printing, Catalog * catalogA,
GBool (* abortCheckCbk)(void *data) = NULL,
void * abortCheckCbkData = NULL)
{
docPage = page;
catalog = catalogA;
return gTrue;
}
virtual void write_html_head();
virtual void write_html_tail();
@ -75,7 +64,6 @@ class HTMLRenderer : public OutputDev
// End a page.
virtual void endPage();
//----- update state
/*
* To optmize false alarms
* We just mark as changed, and recheck if they have been changed when we are about to output a new string
@ -93,14 +81,12 @@ class HTMLRenderer : public OutputDev
virtual void drawImage(GfxState * state, Object * ref, Stream * str, int width, int height, GfxImageColorMap * colorMap, GBool interpolate, int *maskColors, GBool inlineImg);
protected:
void close_cur_line();
long long install_font(GfxFont * font);
static void output_to_file(void * outf, const char * data, int len);
std::string dump_embedded_font (GfxFont * font, long long fn_id);
////////////////////////////////////////////////////
// manage styles
////////////////////////////////////////////////////
long long install_font(GfxFont * font);
void install_embedded_font(GfxFont * font, const std::string & suffix, long long fn_id);
void install_base_font(GfxFont * font, GfxFontLoc * font_loc, long long fn_id);
void install_external_font (GfxFont * font, long long fn_id);
@ -110,6 +96,9 @@ class HTMLRenderer : public OutputDev
long long install_transform_matrix(const double * tm);
long long install_color(const GfxRGB * rgb);
////////////////////////////////////////////////////
// export css styles
////////////////////////////////////////////////////
/*
* remote font: to be retrieved from the web server
* local font: to be substituted with a local (client side) font
@ -122,19 +111,29 @@ class HTMLRenderer : public OutputDev
void export_transform_matrix(long long tm_id, const double * tm);
void export_color(long long color_id, const GfxRGB * rgb);
////////////////////////////////////////////////////
// state tracking
////////////////////////////////////////////////////
void check_state_change(GfxState * state);
void reset_state_track();
void close_cur_line();
////////////////////////////////////////////////////
// PDF stuffs
////////////////////////////////////////////////////
XRef * xref;
Catalog *catalog;
Page *docPage;
// page info
int pageNum ;
double pageWidth ;
double pageHeight ;
// state tracking when processing pdf
void check_state_change(GfxState * state);
void reset_state_track();
////////////////////////////////////////////////////
// states
////////////////////////////////////////////////////
bool all_changed;
// if we have a pending opened line
@ -174,39 +173,16 @@ class HTMLRenderer : public OutputDev
// the position of next char, in text coords
double draw_tx, draw_ty;
std::ofstream html_fout, allcss_fout, fontscript_fout;
////////////////////////////////////////////////////
// styles & resources
////////////////////////////////////////////////////
boost::filesystem::ofstream html_fout, allcss_fout, fontscript_fout;
class FontInfo{
public:
long long fn_id;
};
std::unordered_map<long long, FontInfo> font_name_map;
std::map<double, long long> font_size_map;
std::map<double, long long> whitespace_map;
// transform matrix
class TM{
public:
TM() {}
TM(const double * m) {memcpy(_, m, sizeof(_));}
bool operator < (const TM & m) const {
for(int i = 0; i < 6; ++i)
{
if(_[i] < m._[i] - EPS)
return true;
if(_[i] > m._[i] + EPS)
return false;
}
return false;
}
bool operator == (const TM & m) const {
return _tm_equal(_, m._);
}
double _[6];
};
std::map<TM, long long> transform_matrix_map;
std::map<GfxRGB, long long> color_map;
int image_count;

30
src/util.h
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@ -79,5 +79,35 @@ static inline bool operator == (const GfxRGB & rgb1, const GfxRGB & rgb2)
return ((rgb1.r == rgb2.r) && (rgb1.g == rgb2.g) && (rgb1.b == rgb1.b));
}
// we may need more info of a font in the future
class FontInfo
{
public:
long long fn_id;
};
// wrapper of the transform matrix double[6]
// Transform Matrix
class TM
{
public:
TM() {}
TM(const double * m) {memcpy(_, m, sizeof(_));}
bool operator < (const TM & m) const {
for(int i = 0; i < 6; ++i)
{
if(_[i] < m._[i] - EPS)
return true;
if(_[i] > m._[i] + EPS)
return false;
}
return false;
}
bool operator == (const TM & m) const {
return _tm_equal(_, m._);
}
double _[6];
};
#endif //UTIL_H__