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Code

FontSizeManager

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This commit is contained in:
Lu Wang 2013-02-05 14:36:36 +08:00
parent dc0681ad84
commit cccb85f729
7 changed files with 41 additions and 61 deletions
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15
src/HTMLRenderer/HTMLRenderer.h
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@ -30,7 +30,7 @@
#include "util/StringFormatter.h"
#include "util/TmpFiles.h"
#include "util/misc.h"
#include "util/StateTracker.h"
#include "util/StateManager.h"
namespace pdf2htmlEX {
@ -164,7 +164,6 @@ class HTMLRenderer : public OutputDev
void install_base_font(GfxFont * font, GfxFontLoc * font_loc, FontInfo & info);
void install_external_font (GfxFont * font, FontInfo & info);
long long install_font_size(double font_size);
long long install_transform_matrix(const double * tm);
long long install_fill_color(const GfxRGB * rgb);
long long install_stroke_color(const GfxRGB * rgb);
@ -184,7 +183,6 @@ class HTMLRenderer : public OutputDev
void export_remote_default_font(long long fn_id);
void export_local_font(const FontInfo & info, GfxFont * font, const std::string & original_font_name, const std::string & cssfont);
void export_font_size(long long fs_id, double font_size);
void export_transform_matrix(long long tm_id, const double * tm);
void export_fill_color(long long color_id, const GfxRGB * rgb);
void export_stroke_color(long long color_id, const GfxRGB * rgb);
@ -283,9 +281,11 @@ class HTMLRenderer : public OutputDev
// font & size
const FontInfo * cur_font_info;
double cur_font_size;
long long cur_fs_id;
bool font_changed;
// cur_font_size is as in GfxState,
// font_size_manager saves the final font size used in HTML
double cur_font_size;
FontSizeManager font_size_manager;
// transform matrix
long long cur_ttm_id;
@ -300,11 +300,11 @@ class HTMLRenderer : public OutputDev
// letter spacing
bool letter_space_changed;
LetterSpaceTracker letter_space_tracker;
LetterSpaceManager letter_space_manager;
// word spacing
bool word_space_changed;
WordSpaceTracker word_space_tracker;
WordSpaceManager word_space_manager;
// fill color
long long cur_fill_color_id;
@ -330,7 +330,6 @@ class HTMLRenderer : public OutputDev
// draw_text_tm is cur_text_tm scaled by 1/draw_text_scale,
// so everything redenered should be multiplied by draw_text_scale
double draw_text_tm[6];
double draw_font_size;
double draw_text_scale;
// the position of next char, in text coords

11
src/HTMLRenderer/TextLineBuffer.cc
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@ -3,8 +3,7 @@
*
* Generate and optimized HTML for one line
*
* by WangLu
* 2012.09.04
* Copyright (C) 2012,2013 Lu Wang <coolwanglu@gmail.com>
*/
#include <vector>
@ -186,17 +185,17 @@ void HTMLRenderer::TextLineBuffer::flush(void)
void HTMLRenderer::TextLineBuffer::set_state (State & state)
{
state.ids[State::FONT_ID] = renderer->cur_font_info->id;
state.ids[State::FONT_SIZE_ID] = renderer->cur_fs_id;
state.ids[State::FONT_SIZE_ID] = renderer->font_size_manager.get_id();
state.ids[State::FILL_COLOR_ID] = renderer->cur_fill_color_id;
state.ids[State::STROKE_COLOR_ID] = renderer->cur_stroke_color_id;
state.ids[State::LETTER_SPACE_ID] = renderer->letter_space_tracker.get_id();
state.ids[State::WORD_SPACE_ID] = renderer->word_space_tracker.get_id();
state.ids[State::LETTER_SPACE_ID] = renderer->letter_space_manager.get_id();
state.ids[State::WORD_SPACE_ID] = renderer->word_space_manager.get_id();
state.ids[State::RISE_ID] = renderer->cur_rise_id;
const FontInfo * info = renderer->cur_font_info;
state.ascent = info->ascent;
state.descent = info->descent;
state.draw_font_size = renderer->draw_font_size;
state.draw_font_size = renderer->font_size_manager.get_value();
}
void HTMLRenderer::TextLineBuffer::State::begin (ostream & out, const State * prev_state)

7
src/HTMLRenderer/export.cc
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@ -3,8 +3,7 @@
*
* Export styles to HTML
*
* by WangLu
* 2012.08.14
* Copyright (C) 2012,2013 Lu Wang <coolwanglu@gmail.com>
*/
#include <sstream>
@ -131,10 +130,6 @@ void HTMLRenderer::export_local_font(const FontInfo & info, GfxFont * font, cons
f_css.fs << "}" << endl;
}
void HTMLRenderer::export_font_size (long long fs_id, double font_size)
{
f_css.fs << ".s" << fs_id << "{font-size:" << round(font_size) << "px;}" << endl;
}
void HTMLRenderer::export_transform_matrix (long long tm_id, const double * tm)
{

12
src/HTMLRenderer/general.cc
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@ -3,8 +3,7 @@
*
* Handling general stuffs
*
* Copyright (C) 2012 Lu Wang <coolwanglu@gmail.com>
* 2012.08.14
* Copyright (C) 2012,2013 Lu Wang <coolwanglu@gmail.com>
*/
#include <cstdio>
@ -57,8 +56,9 @@ HTMLRenderer::HTMLRenderer(const Param * param)
cur_mapping2 = new char* [0x100];
width_list = new int [0x10000];
letter_space_tracker.set_param(CSS::LETTER_SPACE_CN, EPS);
word_space_tracker .set_param(CSS::WORD_SPACE_CN , EPS);
font_size_manager .set_param(CSS::FONT_SIZE_CN , EPS);
letter_space_manager.set_param(CSS::LETTER_SPACE_CN, EPS);
word_space_manager .set_param(CSS::WORD_SPACE_CN , EPS);
}
HTMLRenderer::~HTMLRenderer()
@ -336,7 +336,9 @@ void HTMLRenderer::pre_process(PDFDoc * doc)
void HTMLRenderer::post_process()
{
// dump css
letter_space_tracker.dump_css(f_css.fs);
font_size_manager .dump_css(f_css.fs);
letter_space_manager.dump_css(f_css.fs);
word_space_manager .dump_css(f_css.fs);
// close files
f_outline.fs.close();

15
src/HTMLRenderer/install.cc
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@ -3,8 +3,7 @@
*
* maintaining all known styles
*
* by WangLu
* 2012.08.14
* Copyright (C) 2012,2013 Lu Wang <coolwanglu@gmail.com>
*/
#include <iostream>
@ -213,18 +212,6 @@ void HTMLRenderer::install_external_font(GfxFont * font, FontInfo & info)
export_local_font(info, font, fontname, "");
}
long long HTMLRenderer::install_font_size(double font_size)
{
auto iter = font_size_map.lower_bound(font_size - EPS);
if((iter != font_size_map.end()) && (equal(iter->first, font_size)))
return iter->second;
long long new_fs_id = font_size_map.size();
font_size_map.insert(make_pair(font_size, new_fs_id));
export_font_size(new_fs_id, font_size);
return new_fs_id;
}
long long HTMLRenderer::install_transform_matrix(const double * tm)
{
Matrix m;

16
src/HTMLRenderer/state.cc
View File

@ -97,15 +97,15 @@ void HTMLRenderer::reset_state()
draw_text_scale = 1.0;
cur_font_info = install_font(nullptr);
cur_font_size = draw_font_size = 0;
cur_fs_id = install_font_size(cur_font_size);
font_size_manager.reset();
memcpy(cur_text_tm, ID_MATRIX, sizeof(cur_text_tm));
memcpy(draw_text_tm, ID_MATRIX, sizeof(draw_text_tm));
cur_ttm_id = install_transform_matrix(draw_text_tm);
letter_space_tracker.reset();
word_space_tracker .reset();
letter_space_manager.reset();
word_space_manager .reset();
cur_fill_color.r = cur_fill_color.g = cur_fill_color.b = 0;
cur_fill_color_id = install_fill_color(&cur_fill_color);
@ -262,11 +262,9 @@ void HTMLRenderer::check_state_change(GfxState * state)
draw_text_scale = new_draw_text_scale;
}
if(!(equal(new_draw_font_size, draw_font_size)))
if(!font_size_manager.install(new_draw_font_size))
{
new_line_state = max<NewLineState>(new_line_state, NLS_SPAN);
draw_font_size = new_draw_font_size;
cur_fs_id = install_font_size(draw_font_size);
}
if(!(tm_equal(new_draw_text_tm, draw_text_tm, 4)))
{
@ -339,7 +337,7 @@ void HTMLRenderer::check_state_change(GfxState * state)
// letter space
// depends: draw_text_scale
if((all_changed || letter_space_changed || draw_text_scale_changed)
&& (letter_space_tracker.install(state->getCharSpace() * draw_text_scale)))
&& (letter_space_manager.install(state->getCharSpace() * draw_text_scale)))
{
new_line_state = max<NewLineState>(new_line_state, NLS_SPAN);
}
@ -347,7 +345,7 @@ void HTMLRenderer::check_state_change(GfxState * state)
// word space
// depends draw_text_scale
if((all_changed || word_space_changed || draw_text_scale_changed)
&& (word_space_tracker.install(state->getWordSpace() * draw_text_scale)))
&& (word_space_manager.install(state->getWordSpace() * draw_text_scale)))
{
new_line_state = max<NewLineState>(new_line_state, NLS_SPAN);
}

26
src/util/StateTracker.h → src/util/StateManager.h
View File

@ -1,14 +1,13 @@
/*
* StateTracker.h
* StateManager.h
*
* track specific PDF state
* manage reusable CSS classes
*
* Copyright (C) 2013 Lu Wang <coolwanglu@gmail.com>
*/
#ifndef STATETRACKER_H__
#define STATETRACKER_H__
#ifndef STATEMANAGER_H__
#define STATEMANAGER_H__
#include <iostream>
#include <map>
@ -17,13 +16,13 @@
namespace pdf2htmlEX {
template<class ValueType, class Imp> class StateTracker {};
template<class ValueType, class Imp> class StateManager {};
template<class Imp>
class StateTracker<double, Imp>
class StateManager<double, Imp>
{
public:
StateTracker()
StateManager()
: eps(0)
, imp(static_cast<Imp*>(this))
{
@ -52,8 +51,9 @@ public:
return _install(new_value);
}
long long get_id (void) const { return id; }
double get_actual_value (void) const { return actual_value; }
long long get_id (void) const { return id; }
double get_value (void) const { return value; }
double get_actual_value (void) const { return actual_value; }
void dump_css(std::ostream & out) {
for(auto iter = value_map.begin(); iter != value_map.end(); ++iter)
@ -93,21 +93,21 @@ protected:
std::map<double, long long> value_map;
};
class FontSizeTracker : public StateTracker<double, FontSizeTracker>
class FontSizeManager : public StateManager<double, FontSizeManager>
{
public:
double default_value(void) { return 0; }
void dump_value(std::ostream & out, double value) { out << "font-size:" << round(value) << "px;"; }
};
class LetterSpaceTracker : public StateTracker<double, LetterSpaceTracker>
class LetterSpaceManager : public StateManager<double, LetterSpaceManager>
{
public:
double default_value(void) { return 0; }
void dump_value(std::ostream & out, double value) { out << "letter-spacing:" << round(value) << "px;"; }
};
class WordSpaceTracker : public StateTracker<double, WordSpaceTracker>
class WordSpaceManager : public StateManager<double, WordSpaceManager>
{
public:
double default_value(void) { return 0; }
@ -116,4 +116,4 @@ public:
} // namespace pdf2htmlEX
#endif //STATETRACKER_H__
#endif //STATEMANAGER_H__