DenysMedvid/pdf2htmlEX
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Code

accuracy improved

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This commit is contained in:
Lu Wang 2012-08-06 19:45:28 +08:00
parent b7ad1d442c
commit 0701de28f9
2 changed files with 31 additions and 13 deletions
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2
src/BackgroundRenderer.cc
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@ -14,7 +14,7 @@ void BackgroundRenderer::drawChar(GfxState *state, double x, double y,
CharCode code, int nBytes, Unicode *u, int uLen) CharCode code, int nBytes, Unicode *u, int uLen)
{ {
auto font = state->getFont(); auto font = state->getFont();
//if((font->getType() == fontType3) || (font->getWMode())) if((font->getType() == fontType3) || (font->getWMode()))
{ {
SplashOutputDev::drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen); SplashOutputDev::drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen);
} }

42
src/HTMLRenderer.cc
View File

@ -235,6 +235,7 @@ void HTMLRenderer::startPage(int pageNum, GfxState *state)
cur_font_size = 0; cur_font_size = 0;
memcpy(draw_ctm, id_matrix, sizeof(draw_ctm)); memcpy(draw_ctm, id_matrix, sizeof(draw_ctm));
draw_font_size = 0;
pos_changed = false; pos_changed = false;
ctm_changed = false; ctm_changed = false;
@ -412,8 +413,8 @@ void HTMLRenderer::endString(GfxState *state) {
html_fout << boost::format(" t%|1$x|") % cur_tm_id; html_fout << boost::format(" t%|1$x|") % cur_tm_id;
html_fout << "\" style=\"" html_fout << "\" style=\""
<< "bottom:" << (cur_string->getY() + cur_state->getFont()->getDescent() * cur_font_size) << "px;" << "bottom:" << (cur_string->getY() + cur_state->getFont()->getDescent() * draw_font_size) << "px;"
<< "top:" << (pageHeight - cur_string->getY() - cur_state->getFont()->getAscent() * cur_font_size) << "px;" << "top:" << (pageHeight - cur_string->getY() - cur_state->getFont()->getAscent() * draw_font_size) << "px;"
<< "left:" << cur_string->getX() << "px;" << "left:" << cur_string->getX() << "px;"
; ;
@ -855,17 +856,19 @@ long long HTMLRenderer::install_transform_matrix(const double * tm){
void HTMLRenderer::export_remote_font(long long fn_id, const string & suffix, GfxFont * font) void HTMLRenderer::export_remote_font(long long fn_id, const string & suffix, GfxFont * font)
{ {
allcss_fout << boost::format("@font-face{font-family:f%|1$x|;src:url(f%|1$x|.%2%);}.f%|1$x|{font-family:f%|1$x|;") % fn_id % suffix;
double a = font->getAscent(); double a = font->getAscent();
double d = font->getDescent(); double d = font->getDescent();
double r = _is_positive(a-d) ? (a/(a-d)) : 1.0; double r = _is_positive(a-d) ? (a/(a-d)) : 1.0;
allcss_fout << boost::format("@font-face{font-family:f%|1$x|;src:url(f%|1$x|.%2%);}.f%|1$x|{font-family:f%|1$x|;") % fn_id % suffix;
for(const std::string & prefix : {"", "-ms-", "-moz-", "-webkit-", "-o-"}) for(const std::string & prefix : {"", "-ms-", "-moz-", "-webkit-", "-o-"})
{ {
allcss_fout << prefix << "transform-origin:0% " << (r*100.0) << "%;"; allcss_fout << prefix << "transform-origin:0% " << (r*100.0) << "%;";
} }
allcss_fout << "line-height:" << (a-d) << ";";
allcss_fout << "}"; allcss_fout << "}";
if(param->readable) allcss_fout << endl; if(param->readable) allcss_fout << endl;
@ -894,11 +897,14 @@ void HTMLRenderer::export_local_font(long long fn_id, GfxFont * font, GfxFontLoc
double a = font->getAscent(); double a = font->getAscent();
double d = font->getDescent(); double d = font->getDescent();
double r = _is_positive(a-d) ? (a/(a-d)) : 1.0; double r = _is_positive(a-d) ? (a/(a-d)) : 1.0;
for(const std::string & prefix : {"", "-ms-", "-moz-", "-webkit-", "-o-"}) for(const std::string & prefix : {"", "-ms-", "-moz-", "-webkit-", "-o-"})
{ {
allcss_fout << prefix << "transform-origin:0% " << (r*100.0) << "%;"; allcss_fout << prefix << "transform-origin:0% " << (r*100.0) << "%;";
} }
allcss_fout << "line-height:" << (a-d) << ";";
allcss_fout << "}"; allcss_fout << "}";
if(param->readable) allcss_fout << endl; if(param->readable) allcss_fout << endl;
@ -970,19 +976,18 @@ void HTMLRenderer::check_state_change(GfxState * state)
} }
bool need_rescale_font = true; bool need_rescale_font = true;
double new_font_size = cur_font_size;
if(font_changed) if(font_changed)
{ {
long long new_fn_id = install_font(state->getFont()); long long new_fn_id = install_font(state->getFont());
new_font_size = state->getFontSize();
if(!(new_fn_id == cur_fn_id)) if(!(new_fn_id == cur_fn_id))
{ {
close_cur_line(); close_cur_line();
cur_fn_id = new_fn_id; cur_fn_id = new_fn_id;
} }
if(!_equal(cur_font_size, new_font_size)) if(!_equal(cur_font_size, state->getFontSize()))
{ {
cur_font_size = state->getFontSize();
need_rescale_font = true; need_rescale_font = true;
} }
} }
@ -1010,17 +1015,30 @@ void HTMLRenderer::check_state_change(GfxState * state)
if(need_rescale_font) if(need_rescale_font)
{ {
double scale = std::sqrt(new_ctm[2] * new_ctm[2] + new_ctm[3] * new_ctm[3]); double scale = std::sqrt(new_ctm[2] * new_ctm[2] + new_ctm[3] * new_ctm[3]);
double new_draw_font_size = cur_font_size;
if(_is_positive(scale)) if(_is_positive(scale))
{ {
new_font_size *= scale; new_draw_font_size *= scale;
for(int i = 0; i < 4; ++i) for(int i = 0; i < 4; ++i)
new_ctm[i] /= scale; new_ctm[i] /= scale;
} }
bool flag = false;
if(!(_equal(new_font_size, cur_font_size))) //debug
if(new_draw_font_size > 100)
{ {
cur_font_size = new_font_size; cerr << "Font size too big: " << new_draw_font_size << endl;
cur_fs_id = install_font_size(cur_font_size); cerr << "scale: " << scale << endl;
cerr << "ctm:";
for(int i = 0; i < 6; ++i)
cerr << ' ' << new_ctm[i];
cerr << endl;
}
bool flag = false;
if(!(_equal(new_draw_font_size, draw_font_size)))
{
draw_font_size = new_draw_font_size;
cur_fs_id = install_font_size(draw_font_size);
flag = true; flag = true;
} }
if(!(_tm_equal(new_ctm, draw_ctm))) if(!(_tm_equal(new_ctm, draw_ctm)))