src/Misc.cc

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1 /*
2 * LDForge: LDraw parts authoring CAD
3 * Copyright (C) 2013, 2014 Santeri Piippo
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19 #include <math.h>
20 #include <locale.h>
21 #include <QColor>
22 #include "Main.h"
23 #include "Misc.h"
24 #include "MainWindow.h"
25 #include "Dialogs.h"
26 #include "Document.h"
27 #include "ui_rotpoint.h"
28 #include "misc/DocumentPointer.cc"
29 #include "misc/RingFinder.cc"
30 #include "misc/InvokationDeferer.cc"
31
32 // Prime number table.
33 const int g_primes[NUM_PRIMES] =
34 {
35 2, 3, 5, 7, 11, 13, 17, 19, 23, 29,
36 31, 37, 41, 43, 47, 53, 59, 61, 67, 71,
37 73, 79, 83, 89, 97, 101, 103, 107, 109, 113,
38 127, 131, 137, 139, 149, 151, 157, 163, 167, 173,
39 179, 181, 191, 193, 197, 199, 211, 223, 227, 229,
40 233, 239, 241, 251, 257, 263, 269, 271, 277, 281,
41 283, 293, 307, 311, 313, 317, 331, 337, 347, 349,
42 353, 359, 367, 373, 379, 383, 389, 397, 401, 409,
43 419, 421, 431, 433, 439, 443, 449, 457, 461, 463,
44 467, 479, 487, 491, 499, 503, 509, 521, 523, 541,
45 547, 557, 563, 569, 571, 577, 587, 593, 599, 601,
46 607, 613, 617, 619, 631, 641, 643, 647, 653, 659,
47 661, 673, 677, 683, 691, 701, 709, 719, 727, 733,
48 739, 743, 751, 757, 761, 769, 773, 787, 797, 809,
49 811, 821, 823, 827, 829, 839, 853, 857, 859, 863,
50 877, 881, 883, 887, 907, 911, 919, 929, 937, 941,
51 947, 953, 967, 971, 977, 983, 991, 997, 1009, 1013,
52 1019, 1021, 1031, 1033, 1039, 1049, 1051, 1061, 1063, 1069,
53 1087, 1091, 1093, 1097, 1103, 1109, 1117, 1123, 1129, 1151,
54 1153, 1163, 1171, 1181, 1187, 1193, 1201, 1213, 1217, 1223,
55 1229, 1231, 1237, 1249, 1259, 1277, 1279, 1283, 1289, 1291,
56 1297, 1301, 1303, 1307, 1319, 1321, 1327, 1361, 1367, 1373,
57 1381, 1399, 1409, 1423, 1427, 1429, 1433, 1439, 1447, 1451,
58 1453, 1459, 1471, 1481, 1483, 1487, 1489, 1493, 1499, 1511,
59 1523, 1531, 1543, 1549, 1553, 1559, 1567, 1571, 1579, 1583,
60 1597, 1601, 1607, 1609, 1613, 1619, 1621, 1627, 1637, 1657,
61 1663, 1667, 1669, 1693, 1697, 1699, 1709, 1721, 1723, 1733,
62 1741, 1747, 1753, 1759, 1777, 1783, 1787, 1789, 1801, 1811,
63 1823, 1831, 1847, 1861, 1867, 1871, 1873, 1877, 1879, 1889,
64 1901, 1907, 1913, 1931, 1933, 1949, 1951, 1973, 1979, 1987,
65 1993, 1997, 1999, 2003, 2011, 2017, 2027, 2029, 2039, 2053,
66 2063, 2069, 2081, 2083, 2087, 2089, 2099, 2111, 2113, 2129,
67 2131, 2137, 2141, 2143, 2153, 2161, 2179, 2203, 2207, 2213,
68 2221, 2237, 2239, 2243, 2251, 2267, 2269, 2273, 2281, 2287,
69 2293, 2297, 2309, 2311, 2333, 2339, 2341, 2347, 2351, 2357,
70 2371, 2377, 2381, 2383, 2389, 2393, 2399, 2411, 2417, 2423,
71 2437, 2441, 2447, 2459, 2467, 2473, 2477, 2503, 2521, 2531,
72 2539, 2543, 2549, 2551, 2557, 2579, 2591, 2593, 2609, 2617,
73 2621, 2633, 2647, 2657, 2659, 2663, 2671, 2677, 2683, 2687,
74 2689, 2693, 2699, 2707, 2711, 2713, 2719, 2729, 2731, 2741,
75 2749, 2753, 2767, 2777, 2789, 2791, 2797, 2801, 2803, 2819,
76 2833, 2837, 2843, 2851, 2857, 2861, 2879, 2887, 2897, 2903,
77 2909, 2917, 2927, 2939, 2953, 2957, 2963, 2969, 2971, 2999,
78 3001, 3011, 3019, 3023, 3037, 3041, 3049, 3061, 3067, 3079,
79 3083, 3089, 3109, 3119, 3121, 3137, 3163, 3167, 3169, 3181,
80 3187, 3191, 3203, 3209, 3217, 3221, 3229, 3251, 3253, 3257,
81 3259, 3271, 3299, 3301, 3307, 3313, 3319, 3323, 3329, 3331,
82 3343, 3347, 3359, 3361, 3371, 3373, 3389, 3391, 3407, 3413,
83 3433, 3449, 3457, 3461, 3463, 3467, 3469, 3491, 3499, 3511,
84 3517, 3527, 3529, 3533, 3539, 3541, 3547, 3557, 3559, 3571,
85 };
86
87 static const long g_e10[] =
88 {
89 1l,
90 10l,
91 100l,
92 1000l,
93 10000l,
94 100000l,
95 1000000l,
96 10000000l,
97 100000000l,
98 1000000000l,
99 };
100
101 // =============================================================================
102 //
103 // Grid stuff
104 //
105 cfg (Int, grid, Grid::Medium);
106 cfg (Float, grid_coarse_x, 5.0f);
107 cfg (Float, grid_coarse_y, 5.0f);
108 cfg (Float, grid_coarse_z, 5.0f);
109 cfg (Float, grid_coarse_angle, 45.0f);
110 cfg (Float, grid_medium_x, 1.0f);
111 cfg (Float, grid_medium_y, 1.0f);
112 cfg (Float, grid_medium_z, 1.0f);
113 cfg (Float, grid_medium_angle, 22.5f);
114 cfg (Float, grid_fine_x, 0.1f);
115 cfg (Float, grid_fine_y, 0.1f);
116 cfg (Float, grid_fine_z, 0.1f);
117 cfg (Float, grid_fine_angle, 7.5f);
118 cfg (Int, edit_rotpoint, 0);
119 cfg (Vertex, edit_customrotpoint, g_origin);
120
121 const gridinfo g_GridInfo[3] =
122 {
123 { "Coarse", { &grid_coarse_x, &grid_coarse_y, &grid_coarse_z, &grid_coarse_angle }},
124 { "Medium", { &grid_medium_x, &grid_medium_y, &grid_medium_z, &grid_medium_angle }},
125 { "Fine", { &grid_fine_x, &grid_fine_y, &grid_fine_z, &grid_fine_angle }}
126 };
127
128 // =============================================================================
129 //
130 // Snap the given coordinate value on the current grid's given axis.
131 //
132 double Grid::snap (double in, const Grid::Config axis)
133 {
134 const double gridval = *currentGrid().confs[axis];
135 const long mult = abs (in / gridval);
136 const bool neg = (in < 0);
137 double out = mult * gridval;
138
139 if (abs<double> (in) - (mult * gridval) > gridval / 2)
140 out += gridval;
141
142 if (neg && out != 0)
143 out *= -1;
144
145 return out;
146 }
147
148 // =============================================================================
149 //
150 bool numeric (const QString& tok)
151 {
152 bool gotDot = false;
153
154 for (int i = 0; i < tok.length(); ++i)
155 {
156 const QChar c = tok[i];
157
158 // Allow leading hyphen for negatives
159 if (i == 0 && c == '-')
160 continue;
161
162 // Check for decimal point
163 if (!gotDot && c == '.')
164 {
165 gotDot = true;
166 continue;
167 }
168
169 if (c >= '0' && c <= '9')
170 continue; // Digit
171
172 // If the above cases didn't catch this character, it was
173 // illegal and this is therefore not a number.
174 return false;
175 }
176
177 return true;
178 }
179
180 // =============================================================================
181 //
182 void simplify (int& numer, int& denom)
183 {
184 bool repeat;
185
186 do
187 {
188 repeat = false;
189
190 for (int x = 0; x < NUM_PRIMES; x++)
191 {
192 const int prime = g_primes[NUM_PRIMES - x - 1];
193
194 if (numer <= prime || denom <= prime)
195 continue;
196
197 if ((numer % prime == 0) && (denom % prime == 0))
198 {
199 numer /= prime;
200 denom /= prime;
201 repeat = true;
202 break;
203 }
204 }
205 }
206 while (repeat);
207 }
208
209 // =============================================================================
210 //
211 Vertex rotPoint (const LDObjectList& objs)
212 {
213 switch ((ERotationPoint) edit_rotpoint)
214 {
215 case EObjectOrigin:
216 {
217 LDBoundingBox box;
218
219 // Calculate center vertex
220 for (LDObject* obj : objs)
221 {
222 if (obj->hasMatrix())
223 box << dynamic_cast<LDMatrixObject*> (obj)->position();
224 else
225 box << obj;
226 }
227
228 return box.center();
229 }
230
231 case EWorldOrigin:
232 {
233 return g_origin;
234 }
235
236 case ECustomPoint:
237 {
238 return edit_customrotpoint;
239 }
240 }
241
242 return Vertex();
243 }
244
245 // =============================================================================
246 //
247 void configRotationPoint()
248 {
249 QDialog* dlg = new QDialog;
250 Ui::RotPointUI ui;
251 ui.setupUi (dlg);
252
253 switch ((ERotationPoint) edit_rotpoint)
254 {
255 case EObjectOrigin:
256 ui.objectPoint->setChecked (true);
257 break;
258
259 case EWorldOrigin:
260 ui.worldPoint->setChecked (true);
261 break;
262
263 case ECustomPoint:
264 ui.customPoint->setChecked (true);
265 break;
266 }
267
268 ui.customX->setValue (edit_customrotpoint.x());
269 ui.customY->setValue (edit_customrotpoint.y());
270 ui.customZ->setValue (edit_customrotpoint.z());
271
272 if (!dlg->exec())
273 return;
274
275 edit_rotpoint =
276 (ui.objectPoint->isChecked()) ? EObjectOrigin :
277 (ui.worldPoint->isChecked()) ? EWorldOrigin :
278 ECustomPoint;
279
280 edit_customrotpoint.x() = ui.customX->value();
281 edit_customrotpoint.y() = ui.customY->value();
282 edit_customrotpoint.z() = ui.customZ->value();
283 }
284
285 // =============================================================================
286 //
287 QString join (QList<StringFormatArg> vals, QString delim)
288 {
289 QStringList list;
290
291 for (const StringFormatArg& arg : vals)
292 list << arg.text();
293
294 return list.join (delim);
295 }
296
297 // =============================================================================
298 //
299 void roundToDecimals (double& a, int decimals)
300 {
301 assert (decimals >= 0 && decimals < (signed) (sizeof g_e10 / sizeof *g_e10));
302 a = round (a * g_e10[decimals]) / g_e10[decimals];
303 }

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