diff options
Diffstat (limited to 'src/content.h')
| -rw-r--r-- | src/content.h | 276 |
1 files changed, 200 insertions, 76 deletions
diff --git a/src/content.h b/src/content.h index 11f4c3d..af91b13 100644 --- a/src/content.h +++ b/src/content.h @@ -15,88 +15,212 @@ #ifndef NSPDF__CONTENT_H_ #define NSPDF__CONTENT_H_ +/** + * content operator + * + * parameters types are listed as: + * tag - + * prp - properties + * num - floating point value + */ enum content_operator { - CONTENT_OP_b, /* b - close, fill and stroke path with nonzero winding - * rule. */ - CONTENT_OP_B, /* B - fill and stroke path using nonzero winding rule */ - CONTENT_OP_b_, /* b* - close, fill and stroke path with even/odd rule */ - CONTENT_OP_B_, /* B* - fill and stroke path with even/odd rule */ - CONTENT_OP_BDC, /* BDC - begin marked content sequence with property list */ - CONTENT_OP_BI, /* BI - begin inline image*/ - CONTENT_OP_BMC, /* BMC - begin marked content sequence */ - CONTENT_OP_BT, /* BT - begin text */ - CONTENT_OP_BX, /* BX - begin compatability */ - CONTENT_OP_c, /* c - append curved segment to path */ - CONTENT_OP_cm, /* cm - concatinate matrix to current trasnsform matrix */ - CONTENT_OP_CS, /* CS - set colour space for stroking operations */ - CONTENT_OP_cs, /* cs - set colourspace for non stroke operations */ - CONTENT_OP_d, /* d - set line dash pattern */ - CONTENT_OP_d0, /* d0 - set glyph width in type 3 font */ - CONTENT_OP_d1, /* d1 - set glyph width and bounding box in type 3 font */ - CONTENT_OP_Do, /* Do - invoke named xobject */ - CONTENT_OP_DP, /* DP - define marked content point with property list */ - CONTENT_OP_EI, /* EI - end of inline image */ - CONTENT_OP_EMC, /* EMC - end marked content sequence */ - CONTENT_OP_ET, /* ET - end text object */ - CONTENT_OP_EX, /* EX - end compatability section */ - CONTENT_OP_f, /* f - fill path using nonzero winding rule */ - CONTENT_OP_F, /* F - fill path using nonzero winding rule */ - CONTENT_OP_f_, /* f* - fill path with even/odd rule */ - CONTENT_OP_G, /* G - set gray level for stroking operations */ - CONTENT_OP_g, /* g - set gray level for nonstroking operations */ - CONTENT_OP_gs, /* gs - set parameters from graphics state directory */ - CONTENT_OP_h, /* h - close subpath */ - CONTENT_OP_i, /* i - set flatness tolerance */ - CONTENT_OP_ID, /* ID - begin inline image data */ - CONTENT_OP_j, /* j - set join style */ - CONTENT_OP_J, /* J - */ - CONTENT_OP_K, /* K - */ - CONTENT_OP_k, /* k - */ - CONTENT_OP_l, /* l - */ - CONTENT_OP_m, /* m - */ - CONTENT_OP_M, /* M - */ - CONTENT_OP_MP, /* MP - */ - CONTENT_OP_n, /* n - */ - CONTENT_OP_q, /* q - */ - CONTENT_OP_Q, /* Q - */ - CONTENT_OP_re, /* re - */ - CONTENT_OP_RG, /* RG - */ - CONTENT_OP_rg, /* rg - */ - CONTENT_OP_ri, /* ri - */ - CONTENT_OP_s, /* s - */ - CONTENT_OP_S, /* S - */ - CONTENT_OP_SC, /* SC - */ - CONTENT_OP_sc, /* sc - */ - CONTENT_OP_SCN, /* SCN - */ - CONTENT_OP_scn, /* scn - */ - CONTENT_OP_sh, /* sh - */ - CONTENT_OP_T_, /* T* - */ - CONTENT_OP_Tc, /* Tc - */ - CONTENT_OP_Td, /* Td - */ - CONTENT_OP_TD, /* TD - */ - CONTENT_OP_Tf, /* Tf - */ - CONTENT_OP_Tj, /* Tj - */ - CONTENT_OP_TJ, /* TJ - */ - CONTENT_OP_TL, /* TL - */ - CONTENT_OP_Tm, /* Tm - */ - CONTENT_OP_Tr, /* Tr - */ - CONTENT_OP_Ts, /* Ts - */ - CONTENT_OP_Tw, /* Tw - */ - CONTENT_OP_Tz, /* Tz - */ - CONTENT_OP_v, /* v - */ - CONTENT_OP_w, /* w - */ - CONTENT_OP_W, /* W - */ - CONTENT_OP_W_, /* W* - */ - CONTENT_OP_y, /* y - append curved segment to path */ - CONTENT_OP__, /* ' - move to next line and show text */ - CONTENT_OP___, /* " - set word and char spacing, move to next line and - * show text */ + /** + * close, fill and stroke path with nonzero winding rule. + * b() + */ + CONTENT_OP_b, + + /** + * fill and stroke path using nonzero winding rule. + * B() + */ + CONTENT_OP_B, + + /** + * close, fill and stroke path with even/odd rule + * b*() + */ + CONTENT_OP_b_, + + /** + * fill and stroke path with even/odd rule + * B*() + */ + CONTENT_OP_B_, + + /** + * tag prp BDC + * begin marked content sequence with property list + */ + CONTENT_OP_BDC, + + /** + * BI() + * begin inline image + */ + CONTENT_OP_BI, + + /** + * tag BMC + * begin marked content sequence + */ + CONTENT_OP_BMC, + + /** + * begin text + * BT() + */ + CONTENT_OP_BT, + + /** + * begin compatability + * BX() + */ + CONTENT_OP_BX, + + /** + * append curved segment to path + * c(num x1, num y1, num x2, num y2, num x3, num y3) + */ + CONTENT_OP_c, + CONTENT_OP_cm, /* a b c d e f cm - concatinate matrix to current trasnsform matrix */ + CONTENT_OP_CS, /* name CS - set colour space for stroking operations */ + CONTENT_OP_cs, /* name cs - set colourspace for non stroke operations */ + CONTENT_OP_d, /* array phase d - set line dash pattern */ + CONTENT_OP_d0, /* wx wy d0 - set glyph width in type 3 font */ + CONTENT_OP_d1, /* wx wy llx lly urx ury d1 - set glyph width and bounding box in type 3 font */ + CONTENT_OP_Do, /* name Do - invoke named xobject */ + CONTENT_OP_DP, /* tag prp DP - define marked content point with property list */ + CONTENT_OP_EI, /* EI - end of inline image */ + CONTENT_OP_EMC, /* EMC - end marked content sequence */ + CONTENT_OP_ET, /* ET - end text object */ + CONTENT_OP_EX, /* EX - end compatability section */ + CONTENT_OP_f, /* f - fill path using nonzero winding rule */ + CONTENT_OP_F, /* F - fill path using nonzero winding rule */ + CONTENT_OP_f_, /* f* - fill path with even/odd rule */ + + /** + * set gray level for stroking operations + * G(num gray) + */ + CONTENT_OP_G, + + /** + * set gray level for nonstroking operations + * g(num gray) + */ + CONTENT_OP_g, + CONTENT_OP_gs, /* dictName gs - set parameters from graphics state directory */ + + /** + * close subpath + * h() + */ + CONTENT_OP_h, + + /** + * set flatness tolerance + * i(num flatness) + */ + CONTENT_OP_i, + CONTENT_OP_ID, /* ID - begin inline image data */ + + /** + * set line join style (0, 1 or 2) + * j(int linejoin) + */ + CONTENT_OP_j, + CONTENT_OP_J, /* linecap J - sel line cap style (int 0, 1 or 2) */ + CONTENT_OP_K, /* c m y k K - set cmyk colour for stroking operations */ + CONTENT_OP_k, /* c m y k k - set cmyk colour for nonstroking operations */ + CONTENT_OP_l, /* x y l - append straight line segment to path */ + CONTENT_OP_m, /* x y m - begin new subpath */ + + /** + * set mitre limit + * M(num mitrelimit) + */ + CONTENT_OP_M, + CONTENT_OP_MP, /* tag MP - define marked content point */ + CONTENT_OP_n, /* n - end path without filling or stroking*/ + CONTENT_OP_q, /* q - save graphics state */ + CONTENT_OP_Q, /* Q - restore graphics state */ + CONTENT_OP_re, /* x y w h re - append rectangle to path */ + CONTENT_OP_RG, /* r g b RG - stroke colour in DeviceRGB colourspace */ + CONTENT_OP_rg, /* r g b rg - nonstroke colour in DeviceRGB colourspace */ + CONTENT_OP_ri, /* intent ri - set color rendering intent */ + CONTENT_OP_s, /* s - close and stroke path */ + CONTENT_OP_S, /* S - stroke path */ + CONTENT_OP_SC, /* c1 c... SC - set colour for stroking operation. 1 3 or 4 params */ + CONTENT_OP_sc, /* c1 c... sc - same as SC for nonstroking operations */ + CONTENT_OP_SCN, /* c1 c... name SCN - same as SC but extra colour spaces. max 32 params */ + CONTENT_OP_scn, /* c1 c... name scn - same as SCN for nonstroking operations */ + CONTENT_OP_sh, /* name sh - paint area defined by shading pattern */ + CONTENT_OP_T_, /* T* - move to start of next text line */ + CONTENT_OP_Tc, /* charspace Tc - set character spacing */ + CONTENT_OP_Td, /* tx ty Td - move text position */ + CONTENT_OP_TD, /* tx ty TD - move text position and set leading */ + CONTENT_OP_Tf, /* font size Tf - select text font and size */ + CONTENT_OP_Tj, /* string Tj - show text */ + CONTENT_OP_TJ, /* array TJ - show text strings allowing individual positioning */ + CONTENT_OP_TL, /* leading TL - set text leading for T* ' " operators */ + CONTENT_OP_Tm, /* a b c d e f Tm - set the text matrix */ + CONTENT_OP_Tr, /* render Tr - set rendering mode (int) */ + CONTENT_OP_Ts, /* rise Ts - set text rise */ + CONTENT_OP_Tw, /* wordspace Tw - set word spacing */ + CONTENT_OP_Tz, /* scale Tz - set horizontal scaling */ + CONTENT_OP_v, /* x2 y2 x3 y3 v - append curved segment path */ + + /** + * set line width + * w(num linewidth) + */ + CONTENT_OP_w, + CONTENT_OP_W, /* W - set clipping path using nonzero winding rule */ + CONTENT_OP_W_, /* W* - set clipping path using odd even rule */ + CONTENT_OP_y, /* x1 y1 x3 y3 y - append curved segment to path */ + CONTENT_OP__, /* string ' - move to next line and show text */ + CONTENT_OP___, /* aw ac string " - set word and char spacing, move to next line and show text */ }; +/* six numbers is adequate for almost all operations */ +#define content_number_size (6) + +/* compute how long the embedded string can be without inflating the + * structure. size of the pointer is used instead of unsigned int as that is + * what will control the structure padding. + */ +#define content_string_intrnl_lngth ((sizeof(float) * content_number_size) - sizeof(uint8_t *)) + + struct content_operation { enum content_operator operator; - + union { + float number[content_number_size]; + + char *name; + + int64_t i[3]; + + struct { + unsigned int length; + union { + char cdata[content_string_intrnl_lngth]; + uint8_t *pdata; + } u; + } string; + + struct { + unsigned int length; + struct cos_object **values; + } array; + + struct { + char *name; + float number; + } namenumber; + } u; }; #endif |