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1 | /*----------------------------------------------------------------------* |
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2 | * File: keyboard.C |
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3 | *----------------------------------------------------------------------* |
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4 | * |
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5 | * All portions of code are copyright by their respective author/s. |
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6 | * Copyright (c) 2005 WU Fengguang |
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7 | * Copyright (c) 2005-2006 Marc Lehmann <pcg@goof.com> |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or modify |
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10 | * it under the terms of the GNU General Public License as published by |
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11 | * the Free Software Foundation; either version 2 of the License, or |
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12 | * (at your option) any later version. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this program; if not, write to the Free Software |
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21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | *----------------------------------------------------------------------*/ |
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23 | |
1 | #include "../config.h" |
24 | #include "../config.h" |
2 | #include "rxvt.h" |
25 | #include "rxvt.h" |
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26 | |
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27 | #ifdef KEYSYM_RESOURCE |
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28 | |
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29 | #include <cstring> |
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30 | |
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31 | #include "rxvtperl.h" |
3 | #include "keyboard.h" |
32 | #include "keyboard.h" |
4 | #include "command.h" |
33 | #include "command.h" |
5 | #include <string.h> |
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6 | #include <X11/X.h> |
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7 | |
34 | |
8 | #ifdef KEYSYM_RESOURCE |
35 | /* an intro to the data structure: |
9 | |
36 | * |
10 | //////////////////////////////////////////////////////////////////////////////// |
37 | * vector keymap[] is grouped. |
11 | // default keycode translation map and keyevent handlers |
38 | * |
12 | |
39 | * inside each group, elements are sorted by the criteria given by compare_priority(). |
13 | keysym_t keyboard_manager::stock_keymap[] = { |
40 | * the lookup of keysym is done in two steps: |
14 | /* examples */ |
41 | * 1) locate the group corresponds to the keysym; |
15 | /* keysym, state, range, handler, str */ |
42 | * 2) do a linear search inside the group. |
16 | //{XK_ISO_Left_Tab, 0, 1, NORMAL, "\033[Z"}, |
43 | * |
17 | //{ 'a', 0, 26, RANGE_META8, "a" "%c"}, |
44 | * array hash[] effectively defines a map from a keysym to a group in keymap[]. |
18 | //{ 'a', ControlMask, 26, RANGE_META8, "" "%c"}, |
45 | * |
19 | //{ XK_Left, 0, 4, LIST, "DACBZ" "\033[Z"}, |
46 | * each group has its address(the index of first group element in keymap[]), |
20 | //{ XK_Left, ShiftMask, 4, LIST, "dacbZ" "\033[Z"}, |
47 | * which is computed and stored in hash[]. |
21 | //{ XK_Left, ControlMask, 4, LIST, "dacbZ" "\033OZ"}, |
48 | * hash[] stores the addresses in the form of: |
22 | //{ XK_Tab, ControlMask, 1, NORMAL, "\033<C-Tab>"}, |
49 | * index: 0 I1 I2 I3 In |
23 | //{ XK_apostrophe, ControlMask, 1, NORMAL, "\033<C-'>"}, |
50 | * value: 0...0, A1...A1, A2...A2, A3...A3, ..., An...An |
24 | //{ XK_slash, ControlMask, 1, NORMAL, "\033<C-/>"}, |
51 | * where |
25 | //{ XK_semicolon, ControlMask, 1, NORMAL, "\033<C-;>"}, |
52 | * A1 = 0; |
26 | //{ XK_grave, ControlMask, 1, NORMAL, "\033<C-`>"}, |
53 | * Ai+1 = N1 + N2 + ... + Ni. |
27 | //{ XK_comma, ControlMask, 1, NORMAL, "\033<C-\054>"}, |
54 | * it is computed from hash_bucket_size[]: |
28 | //{ XK_Return, ControlMask, 1, NORMAL, "\033<C-Return>"}, |
55 | * index: 0 I1 I2 I3 In |
29 | //{ XK_Return, ShiftMask, 1, NORMAL, "\033<S-Return>"}, |
56 | * value: 0...0, N1, 0...0, N2, 0...0, N3, ..., Nn, 0...0 |
30 | //{ ' ', ShiftMask, 1, NORMAL, "\033<S-Space>"}, |
57 | * 0...0, 0.......0, N1.....N1, N1+N2...N1+N2, ... (the computation of hash[]) |
31 | //{ '.', ControlMask, 1, NORMAL, "\033<C-.>"}, |
58 | * or we can say |
32 | //{ '0', ControlMask, 10, RANGE, "0" "\033<C-%c>"}, |
59 | * hash_bucket_size[Ii] = Ni; hash_bucket_size[elsewhere] = 0, |
33 | //{ '0', MetaMask|ControlMask, 10, RANGE, "0" "\033<M-C-%c>"}, |
60 | * where |
34 | //{ 'a', MetaMask|ControlMask, 26, RANGE, "a" "\033<M-C-%c>"}, |
61 | * set {I1, I2, ..., In} = { hashkey of keymap[0]->keysym, ..., keymap[keymap.size-1]->keysym } |
35 | }; |
62 | * where hashkey of keymap[i]->keysym = keymap[i]->keysym & KEYSYM_HASH_MASK |
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63 | * n(the number of groups) = the number of non-zero member of hash_bucket_size[]; |
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64 | * Ni(the size of group i) = hash_bucket_size[Ii]. |
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65 | */ |
36 | |
66 | |
37 | static void |
67 | static void |
38 | output_string (rxvt_term *rt, const char *str) |
68 | output_string (rxvt_term *rt, const char *str) |
39 | { |
69 | { |
40 | assert (rt && str); |
70 | if (strncmp (str, "command:", 8) == 0) |
41 | |
71 | rt->cmd_write (str + 8, strlen (str) - 8); |
42 | if (strncmp (str, "proto:", 6) == 0) |
72 | else if (strncmp (str, "perl:", 5) == 0) |
43 | rt->cmd_write ((unsigned char *)str + 6, strlen (str) - 6); |
73 | HOOK_INVOKE((rt, HOOK_USER_COMMAND, DT_STR, str + 5, DT_END)); |
44 | else |
74 | else |
45 | rt->tt_write ((unsigned char *)str, strlen (str)); |
75 | rt->tt_write (str, strlen (str)); |
46 | } |
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47 | |
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48 | static void |
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49 | output_string_meta8 (rxvt_term *rt, unsigned int state, char *buf, int buflen) |
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50 | { |
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51 | if (state & rt->ModMetaMask) |
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52 | { |
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53 | #ifdef META8_OPTION |
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54 | if (rt->meta_char == 0x80) /* set 8-bit on */ |
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55 | { |
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56 | for (char *ch = buf; ch < buf + buflen; ch++) |
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57 | *ch |= 0x80; |
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58 | } |
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59 | else if (rt->meta_char == C0_ESC) /* escape prefix */ |
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60 | #endif |
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61 | { |
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62 | const unsigned char |
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63 | ch = C0_ESC; |
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64 | rt->tt_write (&ch, 1); |
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65 | } |
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66 | } |
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67 | |
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68 | rt->tt_write ((unsigned char *) buf, buflen); |
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69 | } |
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70 | |
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71 | static int |
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72 | format_keyrange_string (const char *str, int keysym_offset, char *buf, int bufsize) |
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73 | { |
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74 | int len = snprintf (buf, bufsize, str + 1, keysym_offset + str [0]); |
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75 | |
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76 | if (len >= bufsize) |
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77 | { |
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78 | fprintf (stderr, "buffer overflowed!\n"); |
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79 | buf[bufsize - 1] = '\0'; |
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80 | } |
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81 | else if (len < 0) |
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82 | { |
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83 | perror ("keyrange_translator()"); |
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84 | } |
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85 | |
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86 | return len; |
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87 | } |
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88 | |
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89 | //////////////////////////////////////////////////////////////////////////////// |
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90 | // return: #bits of '1' |
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91 | static int |
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92 | bitcount (unsigned int n) |
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93 | { |
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94 | int i; |
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95 | |
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96 | for (i = 0; n; ++i, n &= (n - 1)) |
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97 | ; |
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98 | |
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99 | return i; |
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100 | } |
76 | } |
101 | |
77 | |
102 | // return: priority_of_a - priority_of_b |
78 | // return: priority_of_a - priority_of_b |
103 | static int |
79 | static int |
104 | compare_priority (keysym_t *a, keysym_t *b) |
80 | compare_priority (keysym_t *a, keysym_t *b) |
105 | { |
81 | { |
106 | assert (a && b); |
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107 | |
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108 | // (the more '1's in state; the less range): the greater priority |
82 | // (the more '1's in state; the less range): the greater priority |
109 | int ca = bitcount (a->state /* & OtherModMask */); |
83 | int ca = rxvt_popcount (a->state /* & OtherModMask */); |
110 | int cb = bitcount (b->state /* & OtherModMask */); |
84 | int cb = rxvt_popcount (b->state /* & OtherModMask */); |
111 | |
85 | |
112 | if (ca != cb) |
86 | if (ca != cb) |
113 | return ca - cb; |
87 | return ca - cb; |
114 | //else if (a->state != b->state) // this behavior is to be disscussed |
88 | //else if (a->state != b->state) // this behavior is to be discussed |
115 | // return b->state - a->state; |
89 | // return b->state - a->state; |
116 | else |
90 | else |
117 | return b->range - a->range; |
91 | return b->range - a->range; |
118 | } |
92 | } |
119 | |
93 | |
120 | //////////////////////////////////////////////////////////////////////////////// |
94 | //////////////////////////////////////////////////////////////////////////////// |
121 | keyboard_manager::keyboard_manager () |
95 | keyboard_manager::keyboard_manager () |
122 | { |
96 | { |
123 | keymap.reserve (256); |
97 | keymap.reserve (256); |
124 | hash[0] = 1; // hash[0] != 0 indicates uninitialized data |
98 | hash [0] = 1; // hash[0] != 0 indicates uninitialized data |
125 | } |
99 | } |
126 | |
100 | |
127 | keyboard_manager::~keyboard_manager () |
101 | keyboard_manager::~keyboard_manager () |
128 | { |
102 | { |
129 | clear (); |
103 | clear (); |
130 | } |
104 | } |
131 | |
105 | |
132 | void |
106 | void |
133 | keyboard_manager::clear () |
107 | keyboard_manager::clear () |
134 | { |
108 | { |
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109 | hash [0] = 2; |
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110 | |
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111 | for (unsigned int i = 0; i < keymap.size (); ++i) |
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112 | { |
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113 | free ((void *)keymap [i]->str); |
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114 | delete keymap [i]; |
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115 | keymap [i] = 0; |
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116 | } |
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117 | |
135 | keymap.clear (); |
118 | keymap.clear (); |
136 | hash [0] = 2; |
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137 | |
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138 | for (unsigned int i = 0; i < user_translations.size (); ++i) |
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139 | { |
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140 | free ((void *)user_translations [i]); |
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141 | user_translations [i] = 0; |
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142 | } |
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143 | |
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144 | for (unsigned int i = 0; i < user_keymap.size (); ++i) |
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145 | { |
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146 | delete user_keymap [i]; |
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147 | user_keymap [i] = 0; |
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148 | } |
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149 | |
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150 | user_keymap.clear (); |
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151 | user_translations.clear (); |
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152 | } |
119 | } |
153 | |
120 | |
154 | // a wrapper for register_keymap, |
121 | // a wrapper for register_keymap, |
155 | // so that outside codes don't have to know so much details. |
122 | // so that outside codes don't have to know so much details. |
156 | // |
123 | // |
157 | // the string 'trans' is copied to an internal managed buffer, |
124 | // the string 'trans' is copied to an internal managed buffer, |
158 | // so the caller can free memory of 'trans' at any time. |
125 | // so the caller can free memory of 'trans' at any time. |
159 | void |
126 | void |
160 | keyboard_manager::register_user_translation (KeySym keysym, unsigned int state, const char *trans) |
127 | keyboard_manager::register_user_translation (KeySym keysym, unsigned int state, const char *trans) |
161 | { |
128 | { |
162 | assert (trans); |
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163 | |
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164 | keysym_t *key = new keysym_t; |
129 | keysym_t *key = new keysym_t; |
165 | wchar_t *wc = rxvt_mbstowcs (trans); |
130 | wchar_t *wc = rxvt_mbstowcs (trans); |
166 | const char *translation = rxvt_wcstoutf8 (wc); |
131 | char *translation = rxvt_wcstoutf8 (wc); |
167 | free (wc); |
132 | free (wc); |
168 | |
133 | |
169 | if (key && translation) |
134 | if (key && translation) |
170 | { |
135 | { |
171 | key->keysym = keysym; |
136 | key->keysym = keysym; |
172 | key->state = state; |
137 | key->state = state; |
173 | key->range = 1; |
138 | key->range = 1; |
174 | key->str = translation; |
139 | key->str = translation; |
175 | key->type = keysym_t::NORMAL; |
140 | key->type = keysym_t::STRING; |
176 | |
141 | |
177 | if (strncmp (translation, "list", 4) == 0 && translation [4]) |
142 | if (strncmp (translation, "list", 4) == 0 && translation [4]) |
178 | { |
143 | { |
179 | char *middle = strchr (translation + 5, translation [4]); |
144 | char *middle = strchr (translation + 5, translation [4]); |
180 | char *suffix = strrchr (translation + 5, translation [4]); |
145 | char *suffix = strrchr (translation + 5, translation [4]); |
181 | |
146 | |
182 | if (suffix && middle && suffix > middle + 1) |
147 | if (suffix && middle && suffix > middle + 1) |
183 | { |
148 | { |
184 | key->type = keysym_t::LIST; |
149 | key->type = keysym_t::LIST; |
185 | key->range = suffix - middle - 1; |
150 | key->range = suffix - middle - 1; |
186 | |
151 | |
187 | strcpy (translation, translation + 4); |
152 | memmove (translation, translation + 4, strlen (translation + 4) + 1); |
188 | } |
153 | } |
189 | else |
154 | else |
190 | { |
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191 | key->range = 1; |
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192 | rxvt_warn ("cannot parse list-type keysym '%s', treating as normal keysym.\n", translation); |
155 | rxvt_warn ("cannot parse list-type keysym '%s', treating as normal keysym.\n", translation); |
193 | } |
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194 | } |
156 | } |
195 | else |
157 | else if (strncmp (translation, "builtin:", 8) == 0) |
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158 | key->type = keysym_t::BUILTIN; |
196 | |
159 | |
197 | user_keymap.push_back (key); |
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198 | user_translations.push_back (translation); |
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199 | register_keymap (key); |
160 | register_keymap (key); |
200 | } |
161 | } |
201 | else |
162 | else |
202 | { |
163 | { |
203 | delete key; |
164 | delete key; |
… | |
… | |
207 | } |
168 | } |
208 | |
169 | |
209 | void |
170 | void |
210 | keyboard_manager::register_keymap (keysym_t *key) |
171 | keyboard_manager::register_keymap (keysym_t *key) |
211 | { |
172 | { |
212 | assert (key); |
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213 | assert (key->range >= 1); |
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214 | |
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215 | if (keymap.size () == keymap.capacity ()) |
173 | if (keymap.size () == keymap.capacity ()) |
216 | keymap.reserve (keymap.size () * 2); |
174 | keymap.reserve (keymap.size () * 2); |
217 | |
175 | |
218 | keymap.push_back (key); |
176 | keymap.push_back (key); |
219 | hash[0] = 3; |
177 | hash[0] = 3; |
220 | } |
178 | } |
221 | |
179 | |
222 | void |
180 | void |
223 | keyboard_manager::register_done () |
181 | keyboard_manager::register_done () |
224 | { |
182 | { |
225 | unsigned int i, n = sizeof (stock_keymap) / sizeof (keysym_t); |
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226 | |
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227 | if (keymap.back () != &stock_keymap[n - 1]) |
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228 | for (i = 0; i < n; ++i) |
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229 | register_keymap (&stock_keymap[i]); |
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230 | |
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231 | purge_duplicate_keymap (); |
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232 | |
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233 | setup_hash (); |
183 | setup_hash (); |
234 | } |
184 | } |
235 | |
185 | |
236 | bool |
186 | bool |
237 | keyboard_manager::dispatch (rxvt_term *term, KeySym keysym, unsigned int state) |
187 | keyboard_manager::dispatch (rxvt_term *term, KeySym keysym, unsigned int state) |
238 | { |
188 | { |
239 | assert (hash[0] == 0 && "register_done() need to be called"); |
189 | assert (hash[0] == 0 && "register_done() need to be called"); |
240 | |
190 | |
241 | if (state & term->ModMetaMask) |
191 | state &= OtherModMask; // mask out uninteresting modifiers |
242 | state |= MetaMask; |
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243 | |
192 | |
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193 | if (state & term->ModMetaMask) state |= MetaMask; |
244 | if (state & term->ModNumLockMask) |
194 | if (state & term->ModNumLockMask) state |= NumLockMask; |
245 | state |= NumLockMask; |
195 | if (state & term->ModLevel3Mask) state |= Level3Mask; |
246 | |
196 | |
247 | if (!!(term->priv_modes & PrivMode_aplKP) != !!(state & ShiftMask)) |
197 | if (!!(term->priv_modes & PrivMode_aplKP) != !!(state & ShiftMask)) |
248 | state |= AppKeypadMask; |
198 | state |= AppKeypadMask; |
249 | |
199 | |
250 | int index = find_keysym (keysym, state); |
200 | int index = find_keysym (keysym, state); |
251 | |
201 | |
252 | if (index >= 0) |
202 | if (index >= 0) |
253 | { |
203 | { |
254 | assert (term && keymap [index]); |
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255 | const keysym_t &key = *keymap [index]; |
204 | const keysym_t &key = *keymap [index]; |
256 | |
205 | |
257 | int keysym_offset = keysym - key.keysym; |
206 | if (key.type != keysym_t::BUILTIN) |
258 | |
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259 | wchar_t *wc = rxvt_utf8towcs (key.str); |
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260 | char *str = rxvt_wcstombs (wc); |
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261 | // TODO: do translations, unescaping etc, here (allow \u escape etc.) |
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262 | free (wc); |
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263 | |
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264 | switch (key.type) |
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265 | { |
207 | { |
266 | case keysym_t::NORMAL: |
208 | int keysym_offset = keysym - key.keysym; |
267 | output_string (term, str); |
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268 | break; |
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269 | |
209 | |
270 | case keysym_t::RANGE: |
210 | wchar_t *wc = rxvt_utf8towcs (key.str); |
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211 | char *str = rxvt_wcstombs (wc); |
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212 | // TODO: do (some) translations, unescaping etc, here (allow \u escape etc.) |
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213 | free (wc); |
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214 | |
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215 | switch (key.type) |
271 | { |
216 | { |
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217 | case keysym_t::STRING: |
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218 | output_string (term, str); |
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219 | break; |
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220 | |
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221 | case keysym_t::LIST: |
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222 | { |
272 | char buf[STRING_MAX]; |
223 | char buf[STRING_MAX]; |
273 | |
224 | |
274 | if (format_keyrange_string (str, keysym_offset, buf, sizeof (buf)) > 0) |
225 | char *prefix, *middle, *suffix; |
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226 | |
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227 | prefix = str; |
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228 | middle = strchr (prefix + 1, *prefix); |
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229 | suffix = strrchr (middle + 1, *prefix); |
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230 | |
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231 | memcpy (buf, prefix + 1, middle - prefix - 1); |
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232 | buf [middle - prefix - 1] = middle [keysym_offset + 1]; |
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233 | strcpy (buf + (middle - prefix), suffix + 1); |
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234 | |
275 | output_string (term, buf); |
235 | output_string (term, buf); |
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236 | } |
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237 | break; |
276 | } |
238 | } |
277 | break; |
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278 | |
239 | |
279 | case keysym_t::RANGE_META8: |
240 | free (str); |
280 | { |
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281 | int len; |
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282 | char buf[STRING_MAX]; |
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283 | |
241 | |
284 | len = format_keyrange_string (str, keysym_offset, buf, sizeof (buf)); |
242 | return true; |
285 | if (len > 0) |
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286 | output_string_meta8 (term, state, buf, len); |
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287 | } |
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288 | break; |
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289 | |
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290 | case keysym_t::LIST: |
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291 | { |
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292 | char buf[STRING_MAX]; |
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293 | |
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294 | char *prefix, *middle, *suffix; |
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295 | |
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296 | prefix = str; |
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297 | middle = strchr (prefix + 1, *prefix); |
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298 | suffix = strrchr (middle + 1, *prefix); |
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299 | |
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300 | memcpy (buf, prefix + 1, middle - prefix - 1); |
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301 | buf [middle - prefix - 1] = middle [keysym_offset + 1]; |
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302 | strcpy (buf + (middle - prefix), suffix + 1); |
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303 | |
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304 | output_string (term, buf); |
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305 | } |
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306 | break; |
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307 | } |
243 | } |
308 | |
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309 | free (str); |
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310 | |
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311 | return true; |
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312 | } |
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313 | else |
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314 | { |
244 | } |
315 | // fprintf(stderr,"[%x:%x]",state,keysym); |
245 | |
316 | return false; |
246 | return false; |
317 | } |
|
|
318 | } |
|
|
319 | |
|
|
320 | // purge duplicate keymap entries |
|
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321 | void keyboard_manager::purge_duplicate_keymap () |
|
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322 | { |
|
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323 | for (unsigned int i = 0; i < keymap.size (); ++i) |
|
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324 | { |
|
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325 | for (unsigned int j = 0; j < i; ++j) |
|
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326 | { |
|
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327 | if (keymap[i] == keymap[j]) |
|
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328 | { |
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329 | while (keymap[i] == keymap.back ()) |
|
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330 | keymap.pop_back (); |
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331 | |
|
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332 | if (i < keymap.size ()) |
|
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333 | { |
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334 | keymap[i] = keymap.back (); |
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335 | keymap.pop_back (); |
|
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336 | } |
|
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337 | break; |
|
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338 | } |
|
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339 | } |
|
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340 | } |
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341 | } |
247 | } |
342 | |
248 | |
343 | void |
249 | void |
344 | keyboard_manager::setup_hash () |
250 | keyboard_manager::setup_hash () |
345 | { |
251 | { |
346 | unsigned int i, index, hashkey; |
252 | unsigned int i, index, hashkey; |
347 | vector <keysym_t *> sorted_keymap; |
253 | vector <keysym_t *> sorted_keymap; |
348 | uint16_t hash_budget_size[KEYSYM_HASH_BUDGETS]; // size of each budget |
254 | uint16_t hash_bucket_size[KEYSYM_HASH_BUCKETS]; // size of each bucket |
349 | uint16_t hash_budget_counter[KEYSYM_HASH_BUDGETS]; // #elements in each budget |
255 | uint16_t hash_bucket_counter[KEYSYM_HASH_BUCKETS]; // #elements in each bucket |
350 | |
256 | |
351 | memset (hash_budget_size, 0, sizeof (hash_budget_size)); |
257 | memset (hash_bucket_size, 0, sizeof (hash_bucket_size)); |
352 | memset (hash_budget_counter, 0, sizeof (hash_budget_counter)); |
258 | memset (hash_bucket_counter, 0, sizeof (hash_bucket_counter)); |
353 | |
259 | |
354 | // count keysyms for corresponding hash budgets |
260 | // determine hash bucket size |
355 | for (i = 0; i < keymap.size (); ++i) |
261 | for (i = 0; i < keymap.size (); ++i) |
|
|
262 | for (int j = min (keymap [i]->range, KEYSYM_HASH_BUCKETS) - 1; j >= 0; --j) |
356 | { |
263 | { |
357 | assert (keymap[i]); |
|
|
358 | hashkey = (keymap[i]->keysym & KEYSYM_HASH_MASK); |
264 | hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK; |
359 | ++hash_budget_size[hashkey]; |
265 | ++hash_bucket_size [hashkey]; |
360 | } |
266 | } |
361 | |
267 | |
362 | // keysym A with range>1 is counted one more time for |
268 | // now we know the size of each bucket |
363 | // every keysym B lies in its range |
269 | // compute the index of each bucket |
|
|
270 | hash [0] = 0; |
|
|
271 | for (index = 0, i = 1; i < KEYSYM_HASH_BUCKETS; ++i) |
|
|
272 | { |
|
|
273 | index += hash_bucket_size [i - 1]; |
|
|
274 | hash [i] = index; |
|
|
275 | } |
|
|
276 | |
|
|
277 | // and allocate just enough space |
|
|
278 | sorted_keymap.insert (sorted_keymap.begin (), index + hash_bucket_size [i - 1], 0); |
|
|
279 | |
|
|
280 | // fill in sorted_keymap |
|
|
281 | // it is sorted in each bucket |
364 | for (i = 0; i < keymap.size (); ++i) |
282 | for (i = 0; i < keymap.size (); ++i) |
|
|
283 | for (int j = min (keymap [i]->range, KEYSYM_HASH_BUCKETS) - 1; j >= 0; --j) |
365 | { |
284 | { |
366 | if (keymap[i]->range > 1) |
285 | hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK; |
|
|
286 | |
|
|
287 | index = hash [hashkey] + hash_bucket_counter [hashkey]; |
|
|
288 | |
|
|
289 | while (index > hash [hashkey] |
|
|
290 | && compare_priority (keymap [i], sorted_keymap [index - 1]) > 0) |
|
|
291 | { |
|
|
292 | sorted_keymap [index] = sorted_keymap [index - 1]; |
|
|
293 | --index; |
|
|
294 | } |
|
|
295 | |
|
|
296 | sorted_keymap [index] = keymap [i]; |
|
|
297 | ++hash_bucket_counter [hashkey]; |
|
|
298 | } |
|
|
299 | |
|
|
300 | keymap.swap (sorted_keymap); |
|
|
301 | |
|
|
302 | #ifndef NDEBUG |
|
|
303 | // check for invariants |
|
|
304 | for (i = 0; i < KEYSYM_HASH_BUCKETS; ++i) |
|
|
305 | { |
|
|
306 | index = hash[i]; |
|
|
307 | for (int j = 0; j < hash_bucket_size [i]; ++j) |
367 | { |
308 | { |
368 | for (int j = min (keymap[i]->range, KEYSYM_HASH_BUDGETS) - 1; j > 0; --j) |
|
|
369 | { |
|
|
370 | hashkey = ((keymap[i]->keysym + j) & KEYSYM_HASH_MASK); |
|
|
371 | if (hash_budget_size[hashkey]) |
|
|
372 | ++hash_budget_size[hashkey]; |
|
|
373 | } |
|
|
374 | } |
|
|
375 | } |
|
|
376 | |
|
|
377 | // now we know the size of each budget |
|
|
378 | // compute the index of each budget |
|
|
379 | hash[0] = 0; |
|
|
380 | for (index = 0, i = 1; i < KEYSYM_HASH_BUDGETS; ++i) |
|
|
381 | { |
|
|
382 | index += hash_budget_size[i - 1]; |
|
|
383 | hash[i] = (hash_budget_size[i] ? index : hash[i - 1]); |
|
|
384 | } |
|
|
385 | |
|
|
386 | // and allocate just enough space |
|
|
387 | //sorted_keymap.reserve (hash[i - 1] + hash_budget_size[i - 1]); |
|
|
388 | sorted_keymap.insert (sorted_keymap.begin (), index + hash_budget_size[i - 1], 0); |
|
|
389 | |
|
|
390 | // fill in sorted_keymap |
|
|
391 | // it is sorted in each budget |
|
|
392 | for (i = 0; i < keymap.size (); ++i) |
|
|
393 | { |
|
|
394 | for (int j = min (keymap[i]->range, KEYSYM_HASH_BUDGETS) - 1; j >= 0; --j) |
|
|
395 | { |
|
|
396 | hashkey = ((keymap[i]->keysym + j) & KEYSYM_HASH_MASK); |
|
|
397 | |
|
|
398 | if (hash_budget_size[hashkey]) |
|
|
399 | { |
|
|
400 | index = hash[hashkey] + hash_budget_counter[hashkey]; |
|
|
401 | |
|
|
402 | while (index > hash[hashkey] |
|
|
403 | && compare_priority (keymap[i], sorted_keymap[index - 1]) > 0) |
|
|
404 | { |
|
|
405 | sorted_keymap[index] = sorted_keymap[index - 1]; |
|
|
406 | --index; |
|
|
407 | } |
|
|
408 | |
|
|
409 | sorted_keymap[index] = keymap[i]; |
|
|
410 | ++hash_budget_counter[hashkey]; |
|
|
411 | } |
|
|
412 | } |
|
|
413 | } |
|
|
414 | |
|
|
415 | keymap.swap (sorted_keymap); |
|
|
416 | |
|
|
417 | #if defined (DEBUG_STRICT) || defined (DEBUG_KEYBOARD) |
|
|
418 | // check for invariants |
|
|
419 | for (i = 0; i < KEYSYM_HASH_BUDGETS; ++i) |
|
|
420 | { |
|
|
421 | index = hash[i]; |
|
|
422 | for (int j = 0; j < hash_budget_size[i]; ++j) |
|
|
423 | { |
|
|
424 | if (keymap[index + j]->range == 1) |
309 | if (keymap [index + j]->range == 1) |
425 | assert (i == (keymap[index + j]->keysym & KEYSYM_HASH_MASK)); |
310 | assert (i == (keymap [index + j]->keysym & KEYSYM_HASH_MASK)); |
426 | |
311 | |
427 | if (j) |
312 | if (j) |
428 | assert (compare_priority (keymap[index + j - 1], |
313 | assert (compare_priority (keymap [index + j - 1], |
429 | keymap[index + j]) >= 0); |
314 | keymap [index + j]) >= 0); |
430 | } |
315 | } |
431 | } |
316 | } |
432 | |
317 | |
433 | // this should be able to detect most possible bugs |
318 | // this should be able to detect most possible bugs |
434 | for (i = 0; i < sorted_keymap.size (); ++i) |
319 | for (i = 0; i < sorted_keymap.size (); ++i) |
435 | { |
320 | { |
436 | keysym_t *a = sorted_keymap[i]; |
321 | keysym_t *a = sorted_keymap[i]; |
437 | for (int j = 0; j < a->range; ++j) |
322 | for (int j = 0; j < a->range; ++j) |
438 | { |
323 | { |
439 | int index = find_keysym (a->keysym + j, a->state & OtherModMask); |
324 | int index = find_keysym (a->keysym + j, a->state); |
|
|
325 | |
440 | assert (index >= 0); |
326 | assert (index >= 0); |
441 | keysym_t *b = keymap[index]; |
327 | keysym_t *b = keymap [index]; |
442 | assert (i == (signed) index || // the normally expected result |
328 | assert (i == index // the normally expected result |
443 | (a->keysym + j) >= b->keysym && (a->keysym + j) <= (b->keysym + b->range) && compare_priority (a, b) <= 0); // is effectively the same |
329 | || IN_RANGE_INC (a->keysym + j, b->keysym, b->keysym + b->range) |
|
|
330 | && compare_priority (a, b) <= 0); // is effectively the same or a closer match |
444 | } |
331 | } |
445 | } |
332 | } |
446 | #endif |
333 | #endif |
447 | } |
334 | } |
448 | |
335 | |
449 | int |
336 | int |
450 | keyboard_manager::find_keysym (KeySym keysym, unsigned int state) |
337 | keyboard_manager::find_keysym (KeySym keysym, unsigned int state) |
451 | { |
338 | { |
452 | int hashkey = keysym & KEYSYM_HASH_MASK; |
339 | int hashkey = keysym & KEYSYM_HASH_MASK; |
453 | unsigned int index = hash [hashkey]; |
340 | unsigned int index = hash [hashkey]; |
|
|
341 | unsigned int end = hashkey < KEYSYM_HASH_BUCKETS - 1 |
|
|
342 | ? hash [hashkey + 1] |
|
|
343 | : keymap.size (); |
454 | |
344 | |
455 | for (; index < keymap.size (); ++index) |
345 | for (; index < end; ++index) |
456 | { |
346 | { |
457 | keysym_t *key = keymap[index]; |
347 | keysym_t *key = keymap [index]; |
458 | assert (key); |
|
|
459 | |
348 | |
460 | if (key->keysym <= keysym && key->keysym + key->range > keysym |
349 | if (key->keysym <= keysym && keysym < key->keysym + key->range |
461 | // match only the specified bits in state and ignore others |
350 | // match only the specified bits in state and ignore others |
462 | && (key->state & OtherModMask) == (key->state & state)) |
351 | && (key->state & state) == key->state) |
463 | return index; |
352 | return index; |
464 | else if (key->keysym > keysym && key->range == 1) |
|
|
465 | return -1; |
|
|
466 | } |
353 | } |
467 | |
354 | |
468 | return -1; |
355 | return -1; |
469 | } |
356 | } |
470 | |
357 | |