83 lines
1.9 KiB
C++
83 lines
1.9 KiB
C++
/*
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* Header file for HTMLState
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* Copyright (C) 2013 Lu Wang <coolwanglu@gmail.com>
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*/
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#ifndef HTMLSTATE_H__
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#define HTMLSTATE_H__
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#include <functional>
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#include "Color.h"
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namespace pdf2htmlEX {
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struct FontInfo
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{
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long long id;
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bool use_tounicode;
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int em_size;
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double space_width;
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double ascent, descent;
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bool is_type3;
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/*
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* As Type 3 fonts have a font matrix
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* a glyph of 1pt can be very large or very small
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* however it might not be true for other font formats such as ttf
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*
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* Therefore when we save a Type 3 font into ttf,
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* we have to scale the font to about 1,
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* then apply the scaling when using the font
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*
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* The scaling factor is stored as font_size_scale
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*
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* The value is 1 for other fonts
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*/
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double font_size_scale;
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};
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struct HTMLTextState
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{
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const FontInfo * font_info;
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double font_size;
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Color fill_color;
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Color stroke_color;
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double letter_space;
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double word_space;
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// relative to the previous state
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double vertical_align;
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// the offset cause by a single ' ' char
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double single_space_offset(void) const {
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double offset = word_space + letter_space;
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if(font_info->em_size != 0)
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offset += font_info->space_width * font_size;
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return offset;
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}
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// calculate em_size of this state
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double em_size(void) const {
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return font_size * (font_info->ascent - font_info->descent);
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}
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};
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struct HTMLLineState
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{
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double x,y;
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double transform_matrix[4];
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// The page-cope char index(in drawing order) of the first char in this line.
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int first_char_index;
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// A function to determine whether a char is covered at a given index.
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std::function<bool(int)> is_char_covered;
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HTMLLineState(): first_char_index(-1) { }
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};
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struct HTMLClipState
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{
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double xmin, xmax, ymin, ymax;
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};
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} // namespace pdf2htmlEX
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#endif //HTMLSTATE_H__
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