DenysMedvid/pdf2htmlEX
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add background image

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This commit is contained in:
Lu Wang 2012-08-06 14:21:37 +08:00
parent 5acb0cc45b
commit fcf5c2755b
4 changed files with 89 additions and 8 deletions
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2
CMakeLists.txt
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@ -17,7 +17,7 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ggdb")
add_executable(pdftohtmlEX src/pdftohtmlEX.cc src/HTMLRenderer.cc src/HTMLRenderer.h)
add_executable(pdftohtmlEX src/pdftohtmlEX.cc src/HTMLRenderer.cc src/HTMLRenderer.h src/BackgroundRenderer.cc src/BackgroundRenderer.h)
target_link_libraries(pdftohtmlEX poppler boost_program_options)

22
src/BackgroundRenderer.cc Normal file
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@ -0,0 +1,22 @@
/*
* BackgroundRenderer.cc
*
* Copyright (C) 2012 by Lu Wang coolwanglu<at>gmail.com
*/
#include "GfxFont.h"
#include "BackgroundRenderer.h"
void BackgroundRenderer::drawChar(GfxState *state, double x, double y,
double dx, double dy,
double originX, double originY,
CharCode code, int nBytes, Unicode *u, int uLen)
{
auto font = state->getFont();
if((font->getType() == fontType3) || (font->getWMode()))
{
SplashOutputDev::drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen);
}
}

35
src/BackgroundRenderer.h Normal file
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@ -0,0 +1,35 @@
/*
* Background renderer
* Render all those things not supported as Image
*
* by WangLu
* 2012.08.06
*/
#ifndef BACKGROUND_RENDERER_H__
#define BACKGROUND_RENDERER_H__
#include <SplashOutputDev.h>
// Based on BackgroundRenderer from poppler
class BackgroundRenderer : public SplashOutputDev {
public:
BackgroundRenderer(SplashColorMode colorModeA, int bitmapRowPadA,
GBool reverseVideoA, SplashColorPtr paperColorA,
GBool bitmapTopDownA = gTrue,
GBool allowAntialiasA = gTrue) : SplashOutputDev(colorModeA,
bitmapRowPadA, reverseVideoA, paperColorA, bitmapTopDownA,
allowAntialiasA) { }
virtual ~BackgroundRenderer() { }
void drawChar(GfxState *state, double x, double y,
double dx, double dy,
double originX, double originY,
CharCode code, int nBytes, Unicode *u, int uLen);
};
#endif //BACKGROUND_RENDERER_H__

38
src/HTMLRenderer.cc
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@ -28,8 +28,10 @@
#include <UTF8.h>
#include <fofi/FoFiType1C.h>
#include <fofi/FoFiTrueType.h>
#include <splash/SplashBitmap.h>
#include "HTMLRenderer.h"
#include "BackgroundRenderer.h"
/*
* CSS classes
@ -185,11 +187,29 @@ HTMLRenderer::~HTMLRenderer()
void HTMLRenderer::process(PDFDoc *doc)
{
xref = doc->getXRef();
for(int i = param->first_page; i <= param->last_page ; ++i) {
for(int i = param->first_page; i <= param->last_page ; ++i)
{
doc->displayPage(this, i, param->h_dpi, param->v_dpi,
0, true, false, false,
nullptr, nullptr, nullptr, nullptr);
}
// Render non-text objects as image
// copied from poppler
SplashColor color;
color[0] = color[1] = color[2] = 255;
auto bg_renderer = new BackgroundRenderer(splashModeRGB8, 4, gFalse, color);
bg_renderer->startDoc(doc);
for(int i = param->first_page; i <= param->last_page ; ++i)
{
doc->displayPage(bg_renderer, i, 4*param->h_dpi, 4*param->v_dpi,
0, true, false, false,
nullptr, nullptr, nullptr, nullptr);
bg_renderer->getBitmap()->writeImgFile(splashFormatPng, (char*)(boost::format("p%|1$x|.png")%i).str().c_str(), 4*param->h_dpi, 4*param->v_dpi);
}
delete bg_renderer;
}
void HTMLRenderer::startPage(int pageNum, GfxState *state)
@ -203,8 +223,7 @@ void HTMLRenderer::startPage(int pageNum, GfxState *state)
html_fout << boost::format("<div id=\"page-%3%\" class=\"p\" style=\"width:%1%px;height:%2%px;") % pageWidth % pageHeight % pageNum;
// TODO:background
html_fout << boost::format("background-image:url(p%3%.png);background-position:0 0;background-size:%1%px %2%px;background-repeat:no-repeat;") % pageWidth % pageHeight % pageNum;
html_fout << boost::format("background-image:url(p%|3$x|.png);background-position:0 0;background-size:%1%px %2%px;background-repeat:no-repeat;") % pageWidth % pageHeight % pageNum;
html_fout << "\">";
if(param->readable) html_fout << endl;
@ -263,7 +282,7 @@ void HTMLRenderer::close_cur_line()
{
if(cur_line != nullptr)
{
html_fout << "</div>";
html_fout << "</p>";
if(param->readable) html_fout << endl;
delete cur_line;
@ -415,7 +434,7 @@ void HTMLRenderer::endString(GfxState *state) {
// TODO: optimize text matrix search/install
// TODO: position might not be accurate
html_fout << boost::format("<div class=\"l f%|1$x| s%|2$x| t%|3$x|\" style=\"") % cur_fn_id % new_fs_id % new_tm_id
html_fout << boost::format("<p class=\"l f%|1$x| s%|2$x| t%|3$x|\" style=\"") % cur_fn_id % new_fs_id % new_tm_id
<< "bottom:" << cur_string->getY() << "px;"
<< "left:" << cur_string->getX() << "px;"
<< "top:" << (pageHeight - cur_string->getY() - cur_state->getFont()->getAscent() * cur_state->getFontSize()) << "px;"
@ -544,7 +563,12 @@ long long HTMLRenderer::install_font(GfxFont * font)
string new_fn = (boost::format("f%|1$x|") % new_fn_id).str();
if(font->getType() == fontType3) {
std::cerr << "TODO: Type 3 font unsupported" << std::endl;
std::cerr << "Type 3 fonts are unsupported and will be rendered as Image" << std::endl;
export_remote_default_font(new_fn_id);
return new_fn_id;
}
if(font->getWMode()) {
std::cerr << "Writing mode is unsupported and will be rendered as Image" << std::endl;
export_remote_default_font(new_fn_id);
return new_fn_id;
}
@ -866,7 +890,7 @@ void HTMLRenderer::export_remote_font(long long fn_id, const string & suffix)
void HTMLRenderer::export_remote_default_font(long long fn_id)
{
allcss_fout << boost::format(".f%|1$x|{font-family:sans-serif;color:red;}")%fn_id;
allcss_fout << boost::format(".f%|1$x|{font-family:sans-serif;color:transparent;}")%fn_id;
if(param->readable) allcss_fout << endl;
}