annotate data/model/EditableDenseThreeDimensionalModel.cpp @ 1091:bdebff3265ae simple-fft-model

Simplest naive FFTModel implementation (+ fill in tests)
author Chris Cannam
date Fri, 12 Jun 2015 18:08:57 +0100
parents 0fd3661bcfff
children 1517d4c60e88
rev   line source
Chris@152 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@152 2
Chris@152 3 /*
Chris@152 4 Sonic Visualiser
Chris@152 5 An audio file viewer and annotation editor.
Chris@152 6 Centre for Digital Music, Queen Mary, University of London.
Chris@202 7 This file copyright 2006 Chris Cannam and QMUL.
Chris@152 8
Chris@152 9 This program is free software; you can redistribute it and/or
Chris@152 10 modify it under the terms of the GNU General Public License as
Chris@152 11 published by the Free Software Foundation; either version 2 of the
Chris@152 12 License, or (at your option) any later version. See the file
Chris@152 13 COPYING included with this distribution for more information.
Chris@152 14 */
Chris@152 15
Chris@152 16 #include "EditableDenseThreeDimensionalModel.h"
Chris@152 17
Chris@478 18 #include "base/LogRange.h"
Chris@478 19
Chris@152 20 #include <QTextStream>
Chris@387 21 #include <QStringList>
Chris@536 22 #include <QReadLocker>
Chris@536 23 #include <QWriteLocker>
Chris@387 24
Chris@181 25 #include <iostream>
Chris@181 26
Chris@256 27 #include <cmath>
Chris@534 28 #include <cassert>
Chris@256 29
Chris@1044 30 using std::vector;
Chris@1044 31
Chris@607 32 #include "system/System.h"
Chris@607 33
Chris@1040 34 EditableDenseThreeDimensionalModel::EditableDenseThreeDimensionalModel(sv_samplerate_t sampleRate,
Chris@929 35 int resolution,
Chris@929 36 int yBinCount,
Chris@535 37 CompressionType compression,
Chris@152 38 bool notifyOnAdd) :
Chris@611 39 m_startFrame(0),
Chris@152 40 m_sampleRate(sampleRate),
Chris@152 41 m_resolution(resolution),
Chris@152 42 m_yBinCount(yBinCount),
Chris@535 43 m_compression(compression),
Chris@152 44 m_minimum(0.0),
Chris@152 45 m_maximum(0.0),
Chris@256 46 m_haveExtents(false),
Chris@152 47 m_notifyOnAdd(notifyOnAdd),
Chris@152 48 m_sinceLastNotifyMin(-1),
Chris@152 49 m_sinceLastNotifyMax(-1),
Chris@152 50 m_completion(100)
Chris@152 51 {
Chris@152 52 }
Chris@152 53
Chris@152 54 bool
Chris@152 55 EditableDenseThreeDimensionalModel::isOK() const
Chris@152 56 {
Chris@152 57 return true;
Chris@152 58 }
Chris@152 59
Chris@1040 60 sv_samplerate_t
Chris@152 61 EditableDenseThreeDimensionalModel::getSampleRate() const
Chris@152 62 {
Chris@152 63 return m_sampleRate;
Chris@152 64 }
Chris@152 65
Chris@1038 66 sv_frame_t
Chris@152 67 EditableDenseThreeDimensionalModel::getStartFrame() const
Chris@152 68 {
Chris@611 69 return m_startFrame;
Chris@611 70 }
Chris@611 71
Chris@611 72 void
Chris@1038 73 EditableDenseThreeDimensionalModel::setStartFrame(sv_frame_t f)
Chris@611 74 {
Chris@611 75 m_startFrame = f;
Chris@152 76 }
Chris@152 77
Chris@1038 78 sv_frame_t
Chris@152 79 EditableDenseThreeDimensionalModel::getEndFrame() const
Chris@152 80 {
Chris@152 81 return m_resolution * m_data.size() + (m_resolution - 1);
Chris@152 82 }
Chris@152 83
Chris@929 84 int
Chris@152 85 EditableDenseThreeDimensionalModel::getResolution() const
Chris@152 86 {
Chris@152 87 return m_resolution;
Chris@152 88 }
Chris@152 89
Chris@152 90 void
Chris@929 91 EditableDenseThreeDimensionalModel::setResolution(int sz)
Chris@152 92 {
Chris@152 93 m_resolution = sz;
Chris@152 94 }
Chris@152 95
Chris@929 96 int
Chris@182 97 EditableDenseThreeDimensionalModel::getWidth() const
Chris@182 98 {
Chris@182 99 return m_data.size();
Chris@182 100 }
Chris@182 101
Chris@929 102 int
Chris@182 103 EditableDenseThreeDimensionalModel::getHeight() const
Chris@152 104 {
Chris@152 105 return m_yBinCount;
Chris@152 106 }
Chris@152 107
Chris@152 108 void
Chris@929 109 EditableDenseThreeDimensionalModel::setHeight(int sz)
Chris@152 110 {
Chris@152 111 m_yBinCount = sz;
Chris@152 112 }
Chris@152 113
Chris@152 114 float
Chris@152 115 EditableDenseThreeDimensionalModel::getMinimumLevel() const
Chris@152 116 {
Chris@152 117 return m_minimum;
Chris@152 118 }
Chris@152 119
Chris@152 120 void
Chris@152 121 EditableDenseThreeDimensionalModel::setMinimumLevel(float level)
Chris@152 122 {
Chris@152 123 m_minimum = level;
Chris@152 124 }
Chris@152 125
Chris@152 126 float
Chris@152 127 EditableDenseThreeDimensionalModel::getMaximumLevel() const
Chris@152 128 {
Chris@152 129 return m_maximum;
Chris@152 130 }
Chris@152 131
Chris@152 132 void
Chris@152 133 EditableDenseThreeDimensionalModel::setMaximumLevel(float level)
Chris@152 134 {
Chris@152 135 m_maximum = level;
Chris@152 136 }
Chris@152 137
Chris@533 138 EditableDenseThreeDimensionalModel::Column
Chris@929 139 EditableDenseThreeDimensionalModel::getColumn(int index) const
Chris@152 140 {
Chris@536 141 QReadLocker locker(&m_lock);
Chris@937 142 if (index < 0 || index >= m_data.size()) return Column();
Chris@534 143 return expandAndRetrieve(index);
Chris@152 144 }
Chris@152 145
Chris@152 146 float
Chris@929 147 EditableDenseThreeDimensionalModel::getValueAt(int index, int n) const
Chris@152 148 {
Chris@534 149 Column c = getColumn(index);
Chris@929 150 if (int(n) < c.size()) return c.at(n);
Chris@534 151 return m_minimum;
Chris@534 152 }
Chris@152 153
Chris@535 154 //static int given = 0, stored = 0;
Chris@534 155
Chris@534 156 void
Chris@929 157 EditableDenseThreeDimensionalModel::truncateAndStore(int index,
Chris@534 158 const Column &values)
Chris@534 159 {
Chris@929 160 assert(int(index) < m_data.size());
Chris@534 161
Chris@843 162 //cout << "truncateAndStore(" << index << ", " << values.size() << ")" << endl;
Chris@534 163
Chris@535 164 // The default case is to store the entire column at m_data[index]
Chris@535 165 // and place 0 at m_trunc[index] to indicate that it has not been
Chris@535 166 // truncated. We only do clever stuff if one of the clever-stuff
Chris@535 167 // tests works out.
Chris@535 168
Chris@534 169 m_trunc[index] = 0;
Chris@535 170 if (index == 0 ||
Chris@535 171 m_compression == NoCompression ||
Chris@929 172 values.size() != int(m_yBinCount)) {
Chris@535 173 // given += values.size();
Chris@535 174 // stored += values.size();
Chris@534 175 m_data[index] = values;
Chris@534 176 return;
Chris@152 177 }
Chris@152 178
Chris@535 179 // Maximum distance between a column and the one we refer to as
Chris@535 180 // the source of its truncated values. Limited by having to fit
Chris@535 181 // in a signed char, but in any case small values are usually
Chris@535 182 // better
Chris@535 183 static int maxdist = 6;
Chris@534 184
Chris@535 185 bool known = false; // do we know whether to truncate at top or bottom?
Chris@535 186 bool top = false; // if we do know, will we truncate at top?
Chris@534 187
Chris@535 188 // If the previous column is not truncated, then it is the only
Chris@535 189 // candidate for comparison. If it is truncated, then the column
Chris@535 190 // that it refers to is the only candidate. Either way, we only
Chris@535 191 // have one possible column to compare against here, and we are
Chris@535 192 // being careful to ensure it is not a truncated one (to avoid
Chris@535 193 // doing more work recursively when uncompressing).
Chris@534 194 int tdist = 1;
Chris@534 195 int ptrunc = m_trunc[index-1];
Chris@534 196 if (ptrunc < 0) {
Chris@534 197 top = false;
Chris@534 198 known = true;
Chris@534 199 tdist = -ptrunc + 1;
Chris@534 200 } else if (ptrunc > 0) {
Chris@534 201 top = true;
Chris@534 202 known = true;
Chris@534 203 tdist = ptrunc + 1;
Chris@534 204 }
Chris@534 205
Chris@534 206 Column p = expandAndRetrieve(index - tdist);
Chris@534 207 int h = m_yBinCount;
Chris@534 208
Chris@534 209 if (p.size() == h && tdist <= maxdist) {
Chris@534 210
Chris@534 211 int bcount = 0, tcount = 0;
Chris@534 212 if (!known || !top) {
Chris@535 213 // count how many identical values there are at the bottom
Chris@534 214 for (int i = 0; i < h; ++i) {
Chris@534 215 if (values.at(i) == p.at(i)) ++bcount;
Chris@534 216 else break;
Chris@534 217 }
Chris@534 218 }
Chris@534 219 if (!known || top) {
Chris@535 220 // count how many identical values there are at the top
Chris@534 221 for (int i = h; i > 0; --i) {
Chris@534 222 if (values.at(i-1) == p.at(i-1)) ++tcount;
Chris@534 223 else break;
Chris@534 224 }
Chris@534 225 }
Chris@534 226 if (!known) top = (tcount > bcount);
Chris@534 227
Chris@535 228 int limit = h / 4; // don't bother unless we have at least this many
Chris@534 229 if ((top ? tcount : bcount) > limit) {
Chris@534 230
Chris@534 231 if (!top) {
Chris@535 232 // create a new column with h - bcount values from bcount up
Chris@534 233 Column tcol(h - bcount);
Chris@535 234 // given += values.size();
Chris@535 235 // stored += h - bcount;
Chris@534 236 for (int i = bcount; i < h; ++i) {
Chris@534 237 tcol[i - bcount] = values.at(i);
Chris@534 238 }
Chris@534 239 m_data[index] = tcol;
Chris@1038 240 m_trunc[index] = (signed char)(-tdist);
Chris@534 241 return;
Chris@534 242 } else {
Chris@535 243 // create a new column with h - tcount values from 0 up
Chris@534 244 Column tcol(h - tcount);
Chris@535 245 // given += values.size();
Chris@535 246 // stored += h - tcount;
Chris@534 247 for (int i = 0; i < h - tcount; ++i) {
Chris@534 248 tcol[i] = values.at(i);
Chris@534 249 }
Chris@534 250 m_data[index] = tcol;
Chris@1038 251 m_trunc[index] = (signed char)(tdist);
Chris@534 252 return;
Chris@534 253 }
Chris@534 254 }
Chris@534 255 }
Chris@534 256
Chris@535 257 // given += values.size();
Chris@535 258 // stored += values.size();
Chris@843 259 // cout << "given: " << given << ", stored: " << stored << " ("
Chris@843 260 // << ((float(stored) / float(given)) * 100.f) << "%)" << endl;
Chris@534 261
Chris@535 262 // default case if nothing wacky worked out
Chris@534 263 m_data[index] = values;
Chris@534 264 return;
Chris@534 265 }
Chris@534 266
Chris@534 267 EditableDenseThreeDimensionalModel::Column
Chris@929 268 EditableDenseThreeDimensionalModel::expandAndRetrieve(int index) const
Chris@534 269 {
Chris@535 270 // See comment above m_trunc declaration in header
Chris@535 271
Chris@941 272 assert(index >= 0 && index < int(m_data.size()));
Chris@534 273 Column c = m_data.at(index);
Chris@534 274 if (index == 0) {
Chris@534 275 return c;
Chris@534 276 }
Chris@534 277 int trunc = (int)m_trunc[index];
Chris@534 278 if (trunc == 0) {
Chris@534 279 return c;
Chris@534 280 }
Chris@534 281 bool top = true;
Chris@534 282 int tdist = trunc;
Chris@534 283 if (trunc < 0) { top = false; tdist = -trunc; }
Chris@534 284 Column p = expandAndRetrieve(index - tdist);
Chris@537 285 int psize = p.size(), csize = c.size();
Chris@941 286 if (psize != m_yBinCount) {
Chris@843 287 cerr << "WARNING: EditableDenseThreeDimensionalModel::expandAndRetrieve: Trying to expand from incorrectly sized column" << endl;
Chris@534 288 }
Chris@534 289 if (top) {
Chris@537 290 for (int i = csize; i < psize; ++i) {
Chris@534 291 c.push_back(p.at(i));
Chris@534 292 }
Chris@534 293 } else {
Chris@593 294 // push_front is very slow on QVector -- but not enough to
Chris@593 295 // make it desirable to choose a different container, since
Chris@593 296 // QVector has all the other advantages for us. easier to
Chris@593 297 // write the whole array out to a new vector
Chris@593 298 Column cc(psize);
Chris@593 299 for (int i = 0; i < psize - csize; ++i) {
Chris@593 300 cc[i] = p.at(i);
Chris@534 301 }
Chris@593 302 for (int i = 0; i < csize; ++i) {
Chris@593 303 cc[i + (psize - csize)] = c.at(i);
Chris@593 304 }
Chris@593 305 return cc;
Chris@534 306 }
Chris@534 307 return c;
Chris@152 308 }
Chris@152 309
Chris@152 310 void
Chris@929 311 EditableDenseThreeDimensionalModel::setColumn(int index,
Chris@182 312 const Column &values)
Chris@152 313 {
Chris@536 314 QWriteLocker locker(&m_lock);
Chris@152 315
Chris@929 316 while (int(index) >= m_data.size()) {
Chris@182 317 m_data.push_back(Column());
Chris@534 318 m_trunc.push_back(0);
Chris@152 319 }
Chris@152 320
Chris@152 321 bool allChange = false;
Chris@152 322
Chris@534 323 // if (values.size() > m_yBinCount) m_yBinCount = values.size();
Chris@439 324
Chris@929 325 for (int i = 0; i < values.size(); ++i) {
Chris@256 326 float value = values[i];
Chris@606 327 if (ISNAN(value) || ISINF(value)) {
Chris@256 328 continue;
Chris@256 329 }
Chris@256 330 if (!m_haveExtents || value < m_minimum) {
Chris@256 331 m_minimum = value;
Chris@152 332 allChange = true;
Chris@152 333 }
Chris@256 334 if (!m_haveExtents || value > m_maximum) {
Chris@256 335 m_maximum = value;
Chris@152 336 allChange = true;
Chris@152 337 }
Chris@256 338 m_haveExtents = true;
Chris@152 339 }
Chris@152 340
Chris@534 341 truncateAndStore(index, values);
Chris@534 342
Chris@593 343 // assert(values == expandAndRetrieve(index));
Chris@152 344
Chris@182 345 long windowStart = index;
Chris@182 346 windowStart *= m_resolution;
Chris@182 347
Chris@152 348 if (m_notifyOnAdd) {
Chris@152 349 if (allChange) {
Chris@152 350 emit modelChanged();
Chris@152 351 } else {
Chris@931 352 emit modelChangedWithin(windowStart, windowStart + m_resolution);
Chris@152 353 }
Chris@152 354 } else {
Chris@152 355 if (allChange) {
Chris@152 356 m_sinceLastNotifyMin = -1;
Chris@152 357 m_sinceLastNotifyMax = -1;
Chris@152 358 emit modelChanged();
Chris@152 359 } else {
Chris@152 360 if (m_sinceLastNotifyMin == -1 ||
Chris@152 361 windowStart < m_sinceLastNotifyMin) {
Chris@152 362 m_sinceLastNotifyMin = windowStart;
Chris@152 363 }
Chris@152 364 if (m_sinceLastNotifyMax == -1 ||
Chris@152 365 windowStart > m_sinceLastNotifyMax) {
Chris@152 366 m_sinceLastNotifyMax = windowStart;
Chris@152 367 }
Chris@152 368 }
Chris@152 369 }
Chris@152 370 }
Chris@152 371
Chris@152 372 QString
Chris@929 373 EditableDenseThreeDimensionalModel::getBinName(int n) const
Chris@152 374 {
Chris@939 375 if (n >= 0 && (int)m_binNames.size() > n) return m_binNames[n];
Chris@152 376 else return "";
Chris@152 377 }
Chris@152 378
Chris@152 379 void
Chris@929 380 EditableDenseThreeDimensionalModel::setBinName(int n, QString name)
Chris@152 381 {
Chris@929 382 while ((int)m_binNames.size() <= n) m_binNames.push_back("");
Chris@152 383 m_binNames[n] = name;
Chris@152 384 emit modelChanged();
Chris@152 385 }
Chris@152 386
Chris@152 387 void
Chris@152 388 EditableDenseThreeDimensionalModel::setBinNames(std::vector<QString> names)
Chris@152 389 {
Chris@152 390 m_binNames = names;
Chris@152 391 emit modelChanged();
Chris@152 392 }
Chris@152 393
Chris@478 394 bool
Chris@886 395 EditableDenseThreeDimensionalModel::hasBinValues() const
Chris@886 396 {
Chris@886 397 return !m_binValues.empty();
Chris@886 398 }
Chris@886 399
Chris@886 400 float
Chris@929 401 EditableDenseThreeDimensionalModel::getBinValue(int n) const
Chris@886 402 {
Chris@929 403 if (n < (int)m_binValues.size()) return m_binValues[n];
Chris@886 404 else return 0.f;
Chris@886 405 }
Chris@886 406
Chris@886 407 void
Chris@886 408 EditableDenseThreeDimensionalModel::setBinValues(std::vector<float> values)
Chris@886 409 {
Chris@886 410 m_binValues = values;
Chris@886 411 }
Chris@886 412
Chris@886 413 QString
Chris@886 414 EditableDenseThreeDimensionalModel::getBinValueUnit() const
Chris@886 415 {
Chris@886 416 return m_binValueUnit;
Chris@886 417 }
Chris@886 418
Chris@886 419 void
Chris@886 420 EditableDenseThreeDimensionalModel::setBinValueUnit(QString unit)
Chris@886 421 {
Chris@886 422 m_binValueUnit = unit;
Chris@886 423 }
Chris@886 424
Chris@886 425 bool
Chris@478 426 EditableDenseThreeDimensionalModel::shouldUseLogValueScale() const
Chris@478 427 {
Chris@536 428 QReadLocker locker(&m_lock);
Chris@534 429
Chris@1044 430 vector<double> sample;
Chris@1044 431 vector<int> n;
Chris@478 432
Chris@478 433 for (int i = 0; i < 10; ++i) {
Chris@929 434 int index = i * 10;
Chris@478 435 if (index < m_data.size()) {
Chris@533 436 const Column &c = m_data.at(index);
Chris@1044 437 while (c.size() > int(sample.size())) {
Chris@1044 438 sample.push_back(0.0);
Chris@478 439 n.push_back(0);
Chris@478 440 }
Chris@478 441 for (int j = 0; j < c.size(); ++j) {
Chris@533 442 sample[j] += c.at(j);
Chris@478 443 ++n[j];
Chris@478 444 }
Chris@478 445 }
Chris@478 446 }
Chris@478 447
Chris@478 448 if (sample.empty()) return false;
Chris@1044 449 for (decltype(sample)::size_type j = 0; j < sample.size(); ++j) {
Chris@1044 450 if (n[j]) sample[j] /= n[j];
Chris@478 451 }
Chris@478 452
Chris@1044 453 return LogRange::useLogScale(sample);
Chris@478 454 }
Chris@478 455
Chris@152 456 void
Chris@333 457 EditableDenseThreeDimensionalModel::setCompletion(int completion, bool update)
Chris@152 458 {
Chris@152 459 if (m_completion != completion) {
Chris@152 460 m_completion = completion;
Chris@152 461
Chris@152 462 if (completion == 100) {
Chris@152 463
Chris@152 464 m_notifyOnAdd = true; // henceforth
Chris@152 465 emit modelChanged();
Chris@152 466
Chris@152 467 } else if (!m_notifyOnAdd) {
Chris@152 468
Chris@333 469 if (update &&
Chris@333 470 m_sinceLastNotifyMin >= 0 &&
Chris@152 471 m_sinceLastNotifyMax >= 0) {
Chris@931 472 emit modelChangedWithin(m_sinceLastNotifyMin,
Chris@931 473 m_sinceLastNotifyMax + m_resolution);
Chris@152 474 m_sinceLastNotifyMin = m_sinceLastNotifyMax = -1;
Chris@152 475 } else {
Chris@152 476 emit completionChanged();
Chris@152 477 }
Chris@152 478 } else {
Chris@152 479 emit completionChanged();
Chris@152 480 }
Chris@152 481 }
Chris@152 482 }
Chris@152 483
Chris@318 484 QString
Chris@318 485 EditableDenseThreeDimensionalModel::toDelimitedDataString(QString delimiter) const
Chris@318 486 {
Chris@536 487 QReadLocker locker(&m_lock);
Chris@318 488 QString s;
Chris@929 489 for (int i = 0; i < m_data.size(); ++i) {
Chris@318 490 QStringList list;
Chris@929 491 for (int j = 0; j < m_data.at(i).size(); ++j) {
Chris@533 492 list << QString("%1").arg(m_data.at(i).at(j));
Chris@318 493 }
Chris@318 494 s += list.join(delimiter) + "\n";
Chris@318 495 }
Chris@318 496 return s;
Chris@318 497 }
Chris@318 498
Chris@838 499 QString
Chris@1038 500 EditableDenseThreeDimensionalModel::toDelimitedDataStringSubset(QString delimiter, sv_frame_t f0, sv_frame_t f1) const
Chris@838 501 {
Chris@838 502 QReadLocker locker(&m_lock);
Chris@838 503 QString s;
Chris@929 504 for (int i = 0; i < m_data.size(); ++i) {
Chris@1038 505 sv_frame_t fr = m_startFrame + i * m_resolution;
Chris@1038 506 if (fr >= f0 && fr < f1) {
Chris@838 507 QStringList list;
Chris@929 508 for (int j = 0; j < m_data.at(i).size(); ++j) {
Chris@838 509 list << QString("%1").arg(m_data.at(i).at(j));
Chris@838 510 }
Chris@838 511 s += list.join(delimiter) + "\n";
Chris@838 512 }
Chris@838 513 }
Chris@838 514 return s;
Chris@838 515 }
Chris@838 516
Chris@152 517 void
Chris@152 518 EditableDenseThreeDimensionalModel::toXml(QTextStream &out,
Chris@314 519 QString indent,
Chris@314 520 QString extraAttributes) const
Chris@152 521 {
Chris@536 522 QReadLocker locker(&m_lock);
Chris@534 523
Chris@152 524 // For historical reasons we read and write "resolution" as "windowSize"
Chris@152 525
Chris@690 526 SVDEBUG << "EditableDenseThreeDimensionalModel::toXml" << endl;
Chris@318 527
Chris@314 528 Model::toXml
Chris@314 529 (out, indent,
Chris@611 530 QString("type=\"dense\" dimensions=\"3\" windowSize=\"%1\" yBinCount=\"%2\" minimum=\"%3\" maximum=\"%4\" dataset=\"%5\" startFrame=\"%6\" %7")
Chris@152 531 .arg(m_resolution)
Chris@152 532 .arg(m_yBinCount)
Chris@152 533 .arg(m_minimum)
Chris@152 534 .arg(m_maximum)
Chris@152 535 .arg(getObjectExportId(&m_data))
Chris@611 536 .arg(m_startFrame)
Chris@152 537 .arg(extraAttributes));
Chris@152 538
Chris@152 539 out << indent;
Chris@152 540 out << QString("<dataset id=\"%1\" dimensions=\"3\" separator=\" \">\n")
Chris@152 541 .arg(getObjectExportId(&m_data));
Chris@152 542
Chris@929 543 for (int i = 0; i < (int)m_binNames.size(); ++i) {
Chris@152 544 if (m_binNames[i] != "") {
Chris@152 545 out << indent + " ";
Chris@152 546 out << QString("<bin number=\"%1\" name=\"%2\"/>\n")
Chris@152 547 .arg(i).arg(m_binNames[i]);
Chris@152 548 }
Chris@152 549 }
Chris@152 550
Chris@929 551 for (int i = 0; i < (int)m_data.size(); ++i) {
Chris@152 552 out << indent + " ";
Chris@152 553 out << QString("<row n=\"%1\">").arg(i);
Chris@929 554 for (int j = 0; j < (int)m_data.at(i).size(); ++j) {
Chris@152 555 if (j > 0) out << " ";
Chris@533 556 out << m_data.at(i).at(j);
Chris@152 557 }
Chris@152 558 out << QString("</row>\n");
Chris@318 559 out.flush();
Chris@152 560 }
Chris@152 561
Chris@152 562 out << indent + "</dataset>\n";
Chris@152 563 }
Chris@152 564
Chris@152 565