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https://gh.wpcy.net/https://github.com/WeblateOrg/weblate.git
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148 lines
8 KiB
Python
148 lines
8 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright © 2012 - 2013 Michal Čihař <michal@cihar.com>
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#
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# This file is part of Weblate <http://weblate.org/>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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'''
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Font handling wrapper.
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'''
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from weblate import appsettings
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from PIL import ImageFont
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import os.path
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# List of chars in base DroidSans font, otherwise we use DroidSansFallback
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BASE_CHARS = frozenset((
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
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0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
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0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43,
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0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
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0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b,
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0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
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0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73,
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0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0xa0,
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0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac,
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0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8,
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0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4,
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0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0,
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0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc,
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0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8,
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0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4,
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0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0x100,
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0x101, 0x102, 0x103, 0x104, 0x105, 0x106, 0x107, 0x108, 0x109, 0x10a,
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0x10b, 0x10c, 0x10d, 0x10e, 0x10f, 0x110, 0x111, 0x112, 0x113, 0x114,
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0x115, 0x116, 0x117, 0x118, 0x119, 0x11a, 0x11b, 0x11c, 0x11d, 0x11e,
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0x11f, 0x120, 0x121, 0x122, 0x123, 0x124, 0x125, 0x126, 0x127, 0x128,
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0x129, 0x12a, 0x12b, 0x12c, 0x12d, 0x12e, 0x12f, 0x130, 0x131, 0x132,
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0x133, 0x134, 0x135, 0x136, 0x137, 0x138, 0x139, 0x13a, 0x13b, 0x13c,
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0x13d, 0x13e, 0x13f, 0x140, 0x141, 0x142, 0x143, 0x144, 0x145, 0x146,
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0x147, 0x148, 0x149, 0x14a, 0x14b, 0x14c, 0x14d, 0x14e, 0x14f, 0x150,
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0x151, 0x152, 0x153, 0x154, 0x155, 0x156, 0x157, 0x158, 0x159, 0x15a,
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0x15b, 0x15c, 0x15d, 0x15e, 0x15f, 0x160, 0x161, 0x162, 0x163, 0x164,
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0x165, 0x166, 0x167, 0x168, 0x169, 0x16a, 0x16b, 0x16c, 0x16d, 0x16e,
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0x16f, 0x170, 0x171, 0x172, 0x173, 0x174, 0x175, 0x176, 0x177, 0x178,
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0x179, 0x17a, 0x17b, 0x17c, 0x17d, 0x17e, 0x17f, 0x192, 0x1a0, 0x1a1,
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0x1af, 0x1b0, 0x1f0, 0x1fa, 0x1fb, 0x1fc, 0x1fd, 0x1fe, 0x1ff, 0x218,
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0x219, 0x21a, 0x21b, 0x2bc, 0x2c6, 0x2c7, 0x2c9, 0x2d8, 0x2d9, 0x2da,
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0x2db, 0x2dc, 0x2dd, 0x2f3, 0x300, 0x301, 0x303, 0x309, 0x30f, 0x323,
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0x384, 0x385, 0x386, 0x387, 0x388, 0x389, 0x38a, 0x38c, 0x38e, 0x38f,
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0x390, 0x391, 0x392, 0x393, 0x394, 0x395, 0x396, 0x397, 0x398, 0x399,
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0x39a, 0x39b, 0x39c, 0x39d, 0x39e, 0x39f, 0x3a0, 0x3a1, 0x3a3, 0x3a4,
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0x3a5, 0x3a6, 0x3a7, 0x3a8, 0x3a9, 0x3aa, 0x3ab, 0x3ac, 0x3ad, 0x3ae,
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0x3af, 0x3b0, 0x3b1, 0x3b2, 0x3b3, 0x3b4, 0x3b5, 0x3b6, 0x3b7, 0x3b8,
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0x3b9, 0x3ba, 0x3bb, 0x3bc, 0x3bd, 0x3be, 0x3bf, 0x3c0, 0x3c1, 0x3c2,
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0x3c3, 0x3c4, 0x3c5, 0x3c6, 0x3c7, 0x3c8, 0x3c9, 0x3ca, 0x3cb, 0x3cc,
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0x3cd, 0x3ce, 0x3d1, 0x3d2, 0x3d6, 0x400, 0x401, 0x402, 0x403, 0x404,
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0x405, 0x406, 0x407, 0x408, 0x409, 0x40a, 0x40b, 0x40c, 0x40d, 0x40e,
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0x40f, 0x410, 0x411, 0x412, 0x413, 0x414, 0x415, 0x416, 0x417, 0x418,
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0x419, 0x41a, 0x41b, 0x41c, 0x41d, 0x41e, 0x41f, 0x420, 0x421, 0x422,
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0x423, 0x424, 0x425, 0x426, 0x427, 0x428, 0x429, 0x42a, 0x42b, 0x42c,
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0x42d, 0x42e, 0x42f, 0x430, 0x431, 0x432, 0x433, 0x434, 0x435, 0x436,
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0x437, 0x438, 0x439, 0x43a, 0x43b, 0x43c, 0x43d, 0x43e, 0x43f, 0x440,
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0x441, 0x442, 0x443, 0x444, 0x445, 0x446, 0x447, 0x448, 0x449, 0x44a,
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0x44b, 0x44c, 0x44d, 0x44e, 0x44f, 0x450, 0x451, 0x452, 0x453, 0x454,
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0x455, 0x456, 0x457, 0x458, 0x459, 0x45a, 0x45b, 0x45c, 0x45d, 0x45e,
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0x45f, 0x460, 0x461, 0x462, 0x463, 0x464, 0x465, 0x466, 0x467, 0x468,
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0x469, 0x46a, 0x46b, 0x46c, 0x46d, 0x46e, 0x46f, 0x470, 0x471, 0x472,
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0x473, 0x474, 0x475, 0x476, 0x477, 0x478, 0x479, 0x47a, 0x47b, 0x47c,
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0x47d, 0x47e, 0x47f, 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486,
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0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e, 0x48f, 0x490, 0x491,
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0x492, 0x493, 0x494, 0x495, 0x496, 0x497, 0x498, 0x499, 0x49a, 0x49b,
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0x49c, 0x49d, 0x49e, 0x49f, 0x4a0, 0x4a1, 0x4a2, 0x4a3, 0x4a4, 0x4a5,
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0x4a6, 0x4a7, 0x4a8, 0x4a9, 0x4aa, 0x4ab, 0x4ac, 0x4ad, 0x4ae, 0x4af,
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0x4b0, 0x4b1, 0x4b2, 0x4b3, 0x4b4, 0x4b5, 0x4b6, 0x4b7, 0x4b8, 0x4b9,
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0x4ba, 0x4bb, 0x4bc, 0x4bd, 0x4be, 0x4bf, 0x4c0, 0x4c1, 0x4c2, 0x4c3,
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0x4c4, 0x4c5, 0x4c6, 0x4c7, 0x4c8, 0x4c9, 0x4ca, 0x4cb, 0x4cc, 0x4cd,
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0x4ce, 0x4cf, 0x4d0, 0x4d1, 0x4d2, 0x4d3, 0x4d4, 0x4d5, 0x4d6, 0x4d7,
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0x4d8, 0x4d9, 0x4da, 0x4db, 0x4dc, 0x4dd, 0x4de, 0x4df, 0x4e0, 0x4e1,
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0x4e2, 0x4e3, 0x4e4, 0x4e5, 0x4e6, 0x4e7, 0x4e8, 0x4e9, 0x4ea, 0x4eb,
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0x4ec, 0x4ed, 0x4ee, 0x4ef, 0x4f0, 0x4f1, 0x4f2, 0x4f3, 0x4f4, 0x4f5,
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0x4f6, 0x4f7, 0x4f8, 0x4f9, 0x4fa, 0x4fb, 0x4fc, 0x4fd, 0x4fe, 0x4ff,
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0x500, 0x501, 0x502, 0x503, 0x504, 0x505, 0x506, 0x507, 0x508, 0x509,
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0x50a, 0x50b, 0x50c, 0x50d, 0x50e, 0x50f, 0x510, 0x511, 0x512, 0x513,
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0x1e00, 0x1e01, 0x1e3e, 0x1e3f, 0x1e80, 0x1e81, 0x1e82, 0x1e83, 0x1e84,
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0x1e85, 0x1ea0, 0x1ea1, 0x1ea2, 0x1ea3, 0x1ea4, 0x1ea5, 0x1ea6, 0x1ea7,
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0x1ea8, 0x1ea9, 0x1eaa, 0x1eab, 0x1eac, 0x1ead, 0x1eae, 0x1eaf, 0x1eb0,
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0x1eb1, 0x1eb2, 0x1eb3, 0x1eb4, 0x1eb5, 0x1eb6, 0x1eb7, 0x1eb8, 0x1eb9,
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0x1eba, 0x1ebb, 0x1ebc, 0x1ebd, 0x1ebe, 0x1ebf, 0x1ec0, 0x1ec1, 0x1ec2,
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0x1ec3, 0x1ec4, 0x1ec5, 0x1ec6, 0x1ec7, 0x1ec8, 0x1ec9, 0x1eca, 0x1ecb,
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0x1ecc, 0x1ecd, 0x1ece, 0x1ecf, 0x1ed0, 0x1ed1, 0x1ed2, 0x1ed3, 0x1ed4,
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0x1ed5, 0x1ed6, 0x1ed7, 0x1ed8, 0x1ed9, 0x1eda, 0x1edb, 0x1edc, 0x1edd,
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0x1ede, 0x1edf, 0x1ee0, 0x1ee1, 0x1ee2, 0x1ee3, 0x1ee4, 0x1ee5, 0x1ee6,
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0x1ee7, 0x1ee8, 0x1ee9, 0x1eea, 0x1eeb, 0x1eec, 0x1eed, 0x1eee, 0x1eef,
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0x1ef0, 0x1ef1, 0x1ef2, 0x1ef3, 0x1ef4, 0x1ef5, 0x1ef6, 0x1ef7, 0x1ef8,
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0x1ef9, 0x1f4d, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006,
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0x2007, 0x2008, 0x2009, 0x200a, 0x200b, 0x2013, 0x2014, 0x2015, 0x2017,
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0x2018, 0x2019, 0x201a, 0x201b, 0x201c, 0x201d, 0x201e, 0x2020, 0x2021,
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0x2022, 0x2026, 0x2030, 0x2032, 0x2033, 0x2039, 0x203a, 0x203c, 0x2044,
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0x207f, 0x20a3, 0x20a4, 0x20a7, 0x20ab, 0x20ac, 0x2105, 0x2113, 0x2116,
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0x2122, 0x2126, 0x212e, 0x215b, 0x215c, 0x215d, 0x215e, 0x2202, 0x2206,
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0x220f, 0x2211, 0x2212, 0x221a, 0x221e, 0x222b, 0x2248, 0x2260, 0x2264,
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0x2265, 0x25ca, 0xfb01, 0xfb02, 0xfb03, 0xfb04, 0xfeff, 0xfffc, 0xfffd,
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0xffff,
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# Ignore newlines as well
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0xd, 0xa,
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))
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# Cache of open fonts
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FONT_CACHE = {}
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def is_cjk(text):
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'''
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Checks whether text should use CJK fonts.
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'''
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return max([ord(char) not in BASE_CHARS for char in text])
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def get_font(size, bold=False, cjk=False):
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'''
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Returns PIL font object matching parameters.
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'''
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cache_key = '%d-%s-%s' % (size, bold, cjk)
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if cache_key not in FONT_CACHE:
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if cjk:
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name = 'DroidSansFallback.ttf'
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elif bold:
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name = 'DroidSans-Bold.ttf'
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else:
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name = 'DroidSans.ttf'
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FONT_CACHE[cache_key] = ImageFont.truetype(
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os.path.join(appsettings.TTF_PATH, name),
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size
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)
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return FONT_CACHE[cache_key]
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