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214 lines
6.1 KiB
214 lines
6.1 KiB
/* |
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* Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih |
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* MIT/X Consortium License |
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*/ |
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/* |
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* U+25XX codepoints data |
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* |
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* References: |
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* http://www.unicode.org/charts/PDF/U2500.pdf |
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* http://www.unicode.org/charts/PDF/U2580.pdf |
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* |
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* Test page: |
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* https://github.com/GNOME/vte/blob/master/doc/boxes.txt |
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*/ |
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/* Each shape is encoded as 16-bits. Higher bits are category, lower are data */ |
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/* Categories (mutually exclusive except BDB): */ |
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/* For convenience, BDL/BDA/BBS/BDB are 1 bit each, the rest are enums */ |
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#define BDL (1<<8) /* Box Draw Lines (light/double/heavy) */ |
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#define BDA (1<<9) /* Box Draw Arc (light) */ |
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#define BBD (1<<10) /* Box Block Down (lower) X/8 */ |
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#define BBL (2<<10) /* Box Block Left X/8 */ |
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#define BBU (3<<10) /* Box Block Upper X/8 */ |
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#define BBR (4<<10) /* Box Block Right X/8 */ |
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#define BBQ (5<<10) /* Box Block Quadrants */ |
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#define BRL (6<<10) /* Box Braille (data is lower byte of U28XX) */ |
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#define BBS (1<<14) /* Box Block Shades */ |
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#define BDB (1<<15) /* Box Draw is Bold */ |
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/* (BDL/BDA) Light/Double/Heavy x Left/Up/Right/Down/Horizontal/Vertical */ |
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/* Heavy is light+double (literally drawing light+double align to form heavy) */ |
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#define LL (1<<0) |
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#define LU (1<<1) |
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#define LR (1<<2) |
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#define LD (1<<3) |
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#define LH (LL+LR) |
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#define LV (LU+LD) |
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#define DL (1<<4) |
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#define DU (1<<5) |
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#define DR (1<<6) |
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#define DD (1<<7) |
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#define DH (DL+DR) |
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#define DV (DU+DD) |
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#define HL (LL+DL) |
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#define HU (LU+DU) |
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#define HR (LR+DR) |
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#define HD (LD+DD) |
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#define HH (HL+HR) |
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#define HV (HU+HD) |
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/* (BBQ) Quadrants Top/Bottom x Left/Right */ |
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#define TL (1<<0) |
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#define TR (1<<1) |
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#define BL (1<<2) |
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#define BR (1<<3) |
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/* Data for U+2500 - U+259F except dashes/diagonals */ |
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static const unsigned short boxdata[256] = { |
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/* light lines */ |
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[0x00] = BDL + LH, /* light horizontal */ |
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[0x02] = BDL + LV, /* light vertical */ |
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[0x0c] = BDL + LD + LR, /* light down and right */ |
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[0x10] = BDL + LD + LL, /* light down and left */ |
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[0x14] = BDL + LU + LR, /* light up and right */ |
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[0x18] = BDL + LU + LL, /* light up and left */ |
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[0x1c] = BDL + LV + LR, /* light vertical and right */ |
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[0x24] = BDL + LV + LL, /* light vertical and left */ |
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[0x2c] = BDL + LH + LD, /* light horizontal and down */ |
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[0x34] = BDL + LH + LU, /* light horizontal and up */ |
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[0x3c] = BDL + LV + LH, /* light vertical and horizontal */ |
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[0x74] = BDL + LL, /* light left */ |
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[0x75] = BDL + LU, /* light up */ |
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[0x76] = BDL + LR, /* light right */ |
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[0x77] = BDL + LD, /* light down */ |
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/* heavy [+light] lines */ |
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[0x01] = BDL + HH, |
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[0x03] = BDL + HV, |
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[0x0d] = BDL + HR + LD, |
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[0x0e] = BDL + HD + LR, |
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[0x0f] = BDL + HD + HR, |
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[0x11] = BDL + HL + LD, |
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[0x12] = BDL + HD + LL, |
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[0x13] = BDL + HD + HL, |
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[0x15] = BDL + HR + LU, |
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[0x16] = BDL + HU + LR, |
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[0x17] = BDL + HU + HR, |
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[0x19] = BDL + HL + LU, |
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[0x1a] = BDL + HU + LL, |
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[0x1b] = BDL + HU + HL, |
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[0x1d] = BDL + HR + LV, |
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[0x1e] = BDL + HU + LD + LR, |
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[0x1f] = BDL + HD + LR + LU, |
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[0x20] = BDL + HV + LR, |
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[0x21] = BDL + HU + HR + LD, |
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[0x22] = BDL + HD + HR + LU, |
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[0x23] = BDL + HV + HR, |
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[0x25] = BDL + HL + LV, |
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[0x26] = BDL + HU + LD + LL, |
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[0x27] = BDL + HD + LU + LL, |
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[0x28] = BDL + HV + LL, |
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[0x29] = BDL + HU + HL + LD, |
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[0x2a] = BDL + HD + HL + LU, |
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[0x2b] = BDL + HV + HL, |
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[0x2d] = BDL + HL + LD + LR, |
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[0x2e] = BDL + HR + LL + LD, |
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[0x2f] = BDL + HH + LD, |
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[0x30] = BDL + HD + LH, |
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[0x31] = BDL + HD + HL + LR, |
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[0x32] = BDL + HR + HD + LL, |
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[0x33] = BDL + HH + HD, |
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[0x35] = BDL + HL + LU + LR, |
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[0x36] = BDL + HR + LU + LL, |
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[0x37] = BDL + HH + LU, |
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[0x38] = BDL + HU + LH, |
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[0x39] = BDL + HU + HL + LR, |
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[0x3a] = BDL + HU + HR + LL, |
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[0x3b] = BDL + HH + HU, |
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[0x3d] = BDL + HL + LV + LR, |
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[0x3e] = BDL + HR + LV + LL, |
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[0x3f] = BDL + HH + LV, |
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[0x40] = BDL + HU + LH + LD, |
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[0x41] = BDL + HD + LH + LU, |
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[0x42] = BDL + HV + LH, |
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[0x43] = BDL + HU + HL + LD + LR, |
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[0x44] = BDL + HU + HR + LD + LL, |
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[0x45] = BDL + HD + HL + LU + LR, |
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[0x46] = BDL + HD + HR + LU + LL, |
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[0x47] = BDL + HH + HU + LD, |
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[0x48] = BDL + HH + HD + LU, |
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[0x49] = BDL + HV + HL + LR, |
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[0x4a] = BDL + HV + HR + LL, |
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[0x4b] = BDL + HV + HH, |
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[0x78] = BDL + HL, |
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[0x79] = BDL + HU, |
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[0x7a] = BDL + HR, |
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[0x7b] = BDL + HD, |
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[0x7c] = BDL + HR + LL, |
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[0x7d] = BDL + HD + LU, |
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[0x7e] = BDL + HL + LR, |
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[0x7f] = BDL + HU + LD, |
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/* double [+light] lines */ |
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[0x50] = BDL + DH, |
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[0x51] = BDL + DV, |
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[0x52] = BDL + DR + LD, |
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[0x53] = BDL + DD + LR, |
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[0x54] = BDL + DR + DD, |
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[0x55] = BDL + DL + LD, |
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[0x56] = BDL + DD + LL, |
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[0x57] = BDL + DL + DD, |
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[0x58] = BDL + DR + LU, |
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[0x59] = BDL + DU + LR, |
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[0x5a] = BDL + DU + DR, |
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[0x5b] = BDL + DL + LU, |
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[0x5c] = BDL + DU + LL, |
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[0x5d] = BDL + DL + DU, |
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[0x5e] = BDL + DR + LV, |
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[0x5f] = BDL + DV + LR, |
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[0x60] = BDL + DV + DR, |
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[0x61] = BDL + DL + LV, |
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[0x62] = BDL + DV + LL, |
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[0x63] = BDL + DV + DL, |
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[0x64] = BDL + DH + LD, |
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[0x65] = BDL + DD + LH, |
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[0x66] = BDL + DD + DH, |
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[0x67] = BDL + DH + LU, |
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[0x68] = BDL + DU + LH, |
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[0x69] = BDL + DH + DU, |
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[0x6a] = BDL + DH + LV, |
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[0x6b] = BDL + DV + LH, |
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[0x6c] = BDL + DH + DV, |
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/* (light) arcs */ |
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[0x6d] = BDA + LD + LR, |
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[0x6e] = BDA + LD + LL, |
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[0x6f] = BDA + LU + LL, |
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[0x70] = BDA + LU + LR, |
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/* Lower (Down) X/8 block (data is 8 - X) */ |
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[0x81] = BBD + 7, [0x82] = BBD + 6, [0x83] = BBD + 5, [0x84] = BBD + 4, |
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[0x85] = BBD + 3, [0x86] = BBD + 2, [0x87] = BBD + 1, [0x88] = BBD + 0, |
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/* Left X/8 block (data is X) */ |
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[0x89] = BBL + 7, [0x8a] = BBL + 6, [0x8b] = BBL + 5, [0x8c] = BBL + 4, |
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[0x8d] = BBL + 3, [0x8e] = BBL + 2, [0x8f] = BBL + 1, |
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/* upper 1/2 (4/8), 1/8 block (X), right 1/2, 1/8 block (8-X) */ |
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[0x80] = BBU + 4, [0x94] = BBU + 1, |
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[0x90] = BBR + 4, [0x95] = BBR + 7, |
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/* Quadrants */ |
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[0x96] = BBQ + BL, |
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[0x97] = BBQ + BR, |
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[0x98] = BBQ + TL, |
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[0x99] = BBQ + TL + BL + BR, |
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[0x9a] = BBQ + TL + BR, |
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[0x9b] = BBQ + TL + TR + BL, |
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[0x9c] = BBQ + TL + TR + BR, |
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[0x9d] = BBQ + TR, |
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[0x9e] = BBQ + BL + TR, |
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[0x9f] = BBQ + BL + TR + BR, |
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/* Shades, data is an alpha value in 25% units (1/4, 1/2, 3/4) */ |
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[0x91] = BBS + 1, [0x92] = BBS + 2, [0x93] = BBS + 3, |
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/* U+2504 - U+250B, U+254C - U+254F: unsupported (dashes) */ |
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/* U+2571 - U+2573: unsupported (diagonals) */ |
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}; |