annotate widgets/AudioDial.cpp @ 1584:e5464dc2f6cf

Add optional context menu to AudioDial
author Chris Cannam
date Thu, 26 Mar 2020 12:10:55 +0000
parents bdf284b29722
children 27ea5d61b402
rev   line source
Chris@58 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@59 4 Sonic Visualiser
Chris@59 5 An audio file viewer and annotation editor.
Chris@59 6 Centre for Digital Music, Queen Mary, University of London.
Chris@0 7
Chris@59 8 This program is free software; you can redistribute it and/or
Chris@59 9 modify it under the terms of the GNU General Public License as
Chris@59 10 published by the Free Software Foundation; either version 2 of the
Chris@59 11 License, or (at your option) any later version. See the file
Chris@59 12 COPYING included with this distribution for more information.
Chris@0 13 */
Chris@0 14
Chris@0 15 /**
Chris@0 16 * A rotary dial widget.
Chris@0 17 *
Chris@0 18 * Based on an original design by Thorsten Wilms.
Chris@0 19 *
Chris@0 20 * Implemented as a widget for the Rosegarden MIDI and audio sequencer
Chris@0 21 * and notation editor by Chris Cannam.
Chris@0 22 *
Chris@0 23 * Extracted into a standalone Qt3 widget by Pedro Lopez-Cabanillas
Chris@0 24 * and adapted for use in QSynth.
Chris@0 25 *
Chris@0 26 * Ported to Qt4 by Chris Cannam.
Chris@0 27 *
Chris@168 28 * This file copyright 2003-2006 Chris Cannam, copyright 2005 Pedro
Chris@182 29 * Lopez-Cabanillas, copyright 2006 Queen Mary, University of London.
Chris@0 30 *
Chris@0 31 * This program is free software; you can redistribute it and/or
Chris@0 32 * modify it under the terms of the GNU General Public License as
Chris@0 33 * published by the Free Software Foundation; either version 2 of the
Chris@0 34 * License, or (at your option) any later version. See the file
Chris@0 35 * COPYING included with this distribution for more information.
Chris@0 36 */
Chris@0 37
Chris@0 38 #include "AudioDial.h"
Chris@0 39
Chris@167 40 #include "base/RangeMapper.h"
Chris@167 41
Chris@0 42 #include <cmath>
Chris@0 43 #include <iostream>
Chris@0 44
Chris@0 45 #include <QTimer>
Chris@0 46 #include <QPainter>
Chris@0 47 #include <QPixmap>
Chris@0 48 #include <QColormap>
Chris@0 49 #include <QMouseEvent>
Chris@0 50 #include <QPaintEvent>
Chris@34 51 #include <QInputDialog>
Chris@1584 52 #include <QMenu>
Chris@0 53
Chris@382 54 #include "base/Profiler.h"
Chris@382 55
Chris@1584 56 #include "MenuTitle.h"
Chris@1584 57
Chris@682 58
Chris@682 59
Chris@0 60
Chris@0 61
Chris@0 62 //!!! Pedro updated his version to use my up/down response code from RG -- need to grab that code in preference to this version from Rui
Chris@0 63
Chris@0 64
Chris@0 65 //-------------------------------------------------------------------------
Chris@0 66 // AudioDial - Instance knob widget class.
Chris@0 67 //
Chris@0 68
Chris@0 69 #define AUDIO_DIAL_MIN (0.25 * M_PI)
Chris@0 70 #define AUDIO_DIAL_MAX (1.75 * M_PI)
Chris@0 71 #define AUDIO_DIAL_RANGE (AUDIO_DIAL_MAX - AUDIO_DIAL_MIN)
Chris@0 72
Chris@0 73
Chris@189 74
Chris@0 75 // Constructor.
Chris@0 76 AudioDial::AudioDial(QWidget *parent) :
Chris@0 77 QDial(parent),
Chris@1443 78 m_knobColor(Qt::black), // shorthand for "background colour" in paint()
Chris@1443 79 m_meterColor(Qt::white), // shorthand for "foreground colour" in paint()
Chris@167 80 m_defaultValue(0),
Chris@344 81 m_defaultMappedValue(0),
Chris@168 82 m_mappedValue(0),
Chris@168 83 m_noMappedUpdate(false),
Chris@187 84 m_showTooltip(true),
Chris@1584 85 m_provideContextMenu(true),
Chris@1584 86 m_lastContextMenu(nullptr),
Chris@1408 87 m_rangeMapper(nullptr)
Chris@0 88 {
Chris@0 89 m_mouseDial = false;
Chris@0 90 m_mousePressed = false;
Chris@1584 91 setContextMenuPolicy(Qt::CustomContextMenu);
Chris@1584 92 connect(this, SIGNAL(customContextMenuRequested(const QPoint &)),
Chris@1584 93 this, SLOT(contextMenuRequested(const QPoint &)));
Chris@0 94 }
Chris@0 95
Chris@0 96
Chris@0 97 // Destructor.
Chris@0 98 AudioDial::~AudioDial (void)
Chris@0 99 {
Chris@167 100 delete m_rangeMapper;
Chris@1584 101 delete m_lastContextMenu;
Chris@167 102 }
Chris@167 103
Chris@1584 104 void AudioDial::contextMenuRequested(const QPoint &pos)
Chris@1584 105 {
Chris@1584 106 if (!m_provideContextMenu) {
Chris@1584 107 return;
Chris@1584 108 }
Chris@1584 109
Chris@1584 110 if (m_lastContextMenu) {
Chris@1584 111 delete m_lastContextMenu;
Chris@1584 112 }
Chris@1584 113
Chris@1584 114 QMenu *m = new QMenu;
Chris@1584 115
Chris@1584 116 if (m_title == "") {
Chris@1584 117 MenuTitle::addTitle(m, tr("Dial"));
Chris@1584 118 } else {
Chris@1584 119 MenuTitle::addTitle(m, m_title);
Chris@1584 120 }
Chris@1584 121
Chris@1584 122 m->addAction(tr("&Edit..."),
Chris@1584 123 [=]() {
Chris@1584 124 edit();
Chris@1584 125 });
Chris@1584 126 m->addAction(tr("&Reset to Default"),
Chris@1584 127 [=]() {
Chris@1584 128 setToDefault();
Chris@1584 129 });
Chris@1584 130
Chris@1584 131 m->popup(mapToGlobal(pos));
Chris@1584 132 m_lastContextMenu = m;
Chris@1584 133 }
Chris@167 134
Chris@167 135 void AudioDial::setRangeMapper(RangeMapper *mapper)
Chris@167 136 {
Chris@187 137 if (m_rangeMapper == mapper) return;
Chris@187 138
Chris@170 139 if (!m_rangeMapper && mapper) {
Chris@168 140 connect(this, SIGNAL(valueChanged(int)),
Chris@168 141 this, SLOT(updateMappedValue(int)));
Chris@168 142 }
Chris@170 143
Chris@167 144 delete m_rangeMapper;
Chris@167 145 m_rangeMapper = mapper;
Chris@170 146
Chris@187 147 updateMappedValue(value());
Chris@0 148 }
Chris@0 149
Chris@0 150
Chris@0 151 void AudioDial::paintEvent(QPaintEvent *)
Chris@0 152 {
Chris@382 153 Profiler profiler("AudioDial::paintEvent");
Chris@382 154
Chris@0 155 QPainter paint;
Chris@0 156
Chris@908 157 double angle = AUDIO_DIAL_MIN // offset
Chris@1266 158 + (AUDIO_DIAL_RANGE *
Chris@1266 159 (double(QDial::value() - QDial::minimum()) /
Chris@1266 160 (double(QDial::maximum() - QDial::minimum()))));
Chris@0 161 int degrees = int(angle * 180.0 / M_PI);
Chris@0 162
Chris@0 163 int ns = notchSize();
Chris@0 164 int numTicks = 1 + (maximum() + ns - minimum()) / ns;
Chris@1266 165
Chris@0 166 QColor knobColor(m_knobColor);
Chris@1443 167 if (knobColor == Qt::black) {
Chris@1476 168 knobColor = palette().window().color().lighter(150);
Chris@1443 169 }
Chris@1443 170 bool knobIsDark =
Chris@1443 171 (knobColor.red() + knobColor.green() + knobColor.blue() <= 384);
Chris@0 172
Chris@0 173 QColor meterColor(m_meterColor);
Chris@1443 174 if (!isEnabled()) {
Chris@1266 175 meterColor = palette().mid().color();
Chris@1443 176 } else if (m_meterColor == Qt::white) {
Chris@1443 177 if (knobIsDark) {
Chris@1545 178 meterColor = palette().text().color();
Chris@1443 179 } else {
Chris@1443 180 meterColor = palette().highlight().color();
Chris@1443 181 }
Chris@1443 182 }
Chris@0 183
Chris@1443 184 QColor notchColor(palette().dark().color());
Chris@1443 185 if (knobIsDark) {
Chris@1545 186 notchColor = palette().text().color();
Chris@1443 187 }
Chris@1443 188
Chris@0 189 int m_size = width() < height() ? width() : height();
Chris@0 190 int scale = 1;
Chris@249 191 int width = m_size - 2*scale;
Chris@0 192
Chris@0 193 paint.begin(this);
Chris@0 194 paint.setRenderHint(QPainter::Antialiasing, true);
Chris@0 195 paint.translate(1, 1);
Chris@0 196
Chris@0 197 QPen pen;
Chris@0 198 QColor c;
Chris@0 199
Chris@0 200 // Knob body and face...
Chris@0 201
Chris@0 202 c = knobColor;
Chris@0 203 pen.setColor(knobColor);
Chris@0 204 pen.setWidth(scale * 2);
Chris@0 205 pen.setCapStyle(Qt::FlatCap);
Chris@1266 206
Chris@0 207 paint.setPen(pen);
Chris@0 208 paint.setBrush(c);
Chris@0 209
Chris@0 210 int indent = (int)(width * 0.15 + 1);
Chris@0 211
Chris@0 212 paint.drawEllipse(indent-1, indent-1, width-2*indent, width-2*indent);
Chris@0 213
Chris@0 214 pen.setWidth(3 * scale);
Chris@0 215 int pos = indent-1 + (width-2*indent) / 20;
Chris@0 216 int darkWidth = (width-2*indent) * 3 / 4;
Chris@0 217 while (darkWidth) {
Chris@1443 218 if (knobIsDark) {
Chris@1476 219 c = c.darker(102);
Chris@1443 220 } else {
Chris@1476 221 c = c.lighter(102);
Chris@1443 222 }
Chris@1266 223 pen.setColor(c);
Chris@1266 224 paint.setPen(pen);
Chris@1266 225 paint.drawEllipse(pos, pos, darkWidth, darkWidth);
Chris@1266 226 if (!--darkWidth) break;
Chris@1266 227 paint.drawEllipse(pos, pos, darkWidth, darkWidth);
Chris@1266 228 if (!--darkWidth) break;
Chris@1266 229 paint.drawEllipse(pos, pos, darkWidth, darkWidth);
Chris@1266 230 ++pos; --darkWidth;
Chris@0 231 }
Chris@0 232
Chris@0 233 // Tick notches...
Chris@0 234
Chris@34 235 if ( notchesVisible() ) {
Chris@1443 236 pen.setColor(notchColor);
Chris@1266 237 pen.setWidth(scale);
Chris@1266 238 paint.setPen(pen);
Chris@1266 239 for (int i = 0; i < numTicks; ++i) {
Chris@1266 240 int div = numTicks;
Chris@1266 241 if (div > 1) --div;
Chris@1266 242 drawTick(paint, AUDIO_DIAL_MIN + (AUDIO_DIAL_MAX - AUDIO_DIAL_MIN) * i / div,
Chris@1266 243 width, true);
Chris@1266 244 }
Chris@0 245 }
Chris@0 246
Chris@0 247 // The bright metering bit...
Chris@0 248
Chris@0 249 c = meterColor;
Chris@0 250 pen.setColor(c);
Chris@0 251 pen.setWidth(indent);
Chris@0 252 paint.setPen(pen);
Chris@0 253
Chris@682 254 // cerr << "degrees " << degrees << ", gives us " << -(degrees - 45) * 16 << endl;
Chris@0 255
Chris@0 256 int arcLen = -(degrees - 45) * 16;
Chris@0 257 if (arcLen == 0) arcLen = -16;
Chris@0 258
Chris@0 259 paint.drawArc(indent/2, indent/2,
Chris@1266 260 width-indent, width-indent, (180 + 45) * 16, arcLen);
Chris@0 261
Chris@0 262 paint.setBrush(Qt::NoBrush);
Chris@0 263
Chris@0 264 // Shadowing...
Chris@0 265
Chris@0 266 pen.setWidth(scale);
Chris@0 267 paint.setPen(pen);
Chris@0 268
Chris@0 269 // Knob shadow...
Chris@0 270
Chris@0 271 int shadowAngle = -720;
Chris@1443 272 if (knobIsDark) {
Chris@1476 273 c = knobColor.lighter();
Chris@1443 274 } else {
Chris@1476 275 c = knobColor.darker();
Chris@1443 276 }
Chris@0 277 for (int arc = 120; arc < 2880; arc += 240) {
Chris@1266 278 pen.setColor(c);
Chris@1266 279 paint.setPen(pen);
Chris@1266 280 paint.drawArc(indent, indent,
Chris@1266 281 width-2*indent, width-2*indent, shadowAngle + arc, 240);
Chris@1266 282 paint.drawArc(indent, indent,
Chris@1266 283 width-2*indent, width-2*indent, shadowAngle - arc, 240);
Chris@1443 284 if (knobIsDark) {
Chris@1476 285 c = c.darker(110);
Chris@1443 286 } else {
Chris@1476 287 c = c.lighter(110);
Chris@1443 288 }
Chris@0 289 }
Chris@0 290
Chris@738 291 // Scale shadow, omitting the bottom part...
Chris@0 292
Chris@0 293 shadowAngle = 2160;
Chris@738 294 c = palette().shadow().color();
Chris@738 295 for (int i = 0; i < 5; ++i) {
Chris@1266 296 pen.setColor(c);
Chris@1266 297 paint.setPen(pen);
Chris@738 298 int arc = i * 240 + 120;
Chris@1266 299 paint.drawArc(scale/2, scale/2,
Chris@1266 300 width-scale, width-scale, shadowAngle + arc, 240);
Chris@1476 301 c = c.lighter(110);
Chris@738 302 }
Chris@738 303 c = palette().shadow().color();
Chris@738 304 for (int i = 0; i < 12; ++i) {
Chris@1266 305 pen.setColor(c);
Chris@1266 306 paint.setPen(pen);
Chris@738 307 int arc = i * 240 + 120;
Chris@1266 308 paint.drawArc(scale/2, scale/2,
Chris@1266 309 width-scale, width-scale, shadowAngle - arc, 240);
Chris@1476 310 c = c.lighter(110);
Chris@0 311 }
Chris@0 312
Chris@0 313 // Scale ends...
Chris@0 314
Chris@1443 315 if (knobIsDark) {
Chris@1443 316 pen.setColor(palette().mid().color());
Chris@1443 317 } else {
Chris@1443 318 pen.setColor(palette().shadow().color());
Chris@1443 319 }
Chris@0 320 pen.setWidth(scale);
Chris@0 321 paint.setPen(pen);
Chris@0 322 for (int i = 0; i < numTicks; ++i) {
Chris@1266 323 if (i != 0 && i != numTicks - 1) continue;
Chris@1266 324 int div = numTicks;
Chris@1266 325 if (div > 1) --div;
Chris@1266 326 drawTick(paint, AUDIO_DIAL_MIN + (AUDIO_DIAL_MAX - AUDIO_DIAL_MIN) * i / div,
Chris@1266 327 width, false);
Chris@0 328 }
Chris@0 329
Chris@0 330 // Pointer notch...
Chris@0 331
Chris@908 332 double hyp = double(width) / 2.0;
Chris@908 333 double len = hyp - indent;
Chris@0 334 --len;
Chris@0 335
Chris@908 336 double x0 = hyp;
Chris@908 337 double y0 = hyp;
Chris@0 338
Chris@908 339 double x = hyp - len * sin(angle);
Chris@908 340 double y = hyp + len * cos(angle);
Chris@0 341
Chris@1443 342 c = notchColor;
Chris@1443 343 if (isEnabled()) {
Chris@1443 344 if (knobIsDark) {
Chris@1476 345 c = c.lighter(130);
Chris@1443 346 } else {
Chris@1476 347 c = c.darker(130);
Chris@1443 348 }
Chris@1443 349 }
Chris@1443 350 pen.setColor(c);
Chris@0 351 pen.setWidth(scale * 2);
Chris@0 352 paint.setPen(pen);
Chris@0 353 paint.drawLine(int(x0), int(y0), int(x), int(y));
Chris@0 354
Chris@0 355 paint.end();
Chris@0 356 }
Chris@0 357
Chris@0 358
Chris@0 359 void AudioDial::drawTick(QPainter &paint,
Chris@1266 360 double angle, int size, bool internal)
Chris@0 361 {
Chris@908 362 double hyp = double(size) / 2.0;
Chris@908 363 double x0 = hyp - (hyp - 1) * sin(angle);
Chris@908 364 double y0 = hyp + (hyp - 1) * cos(angle);
Chris@0 365
Chris@0 366 // cerr << "drawTick: angle " << angle << ", size " << size << ", internal " << internal << endl;
Chris@0 367
Chris@0 368 if (internal) {
Chris@0 369
Chris@1266 370 double len = hyp / 4;
Chris@1266 371 double x1 = hyp - (hyp - len) * sin(angle);
Chris@1266 372 double y1 = hyp + (hyp - len) * cos(angle);
Chris@1266 373
Chris@1266 374 paint.drawLine(int(x0), int(y0), int(x1), int(y1));
Chris@0 375
Chris@0 376 } else {
Chris@0 377
Chris@1266 378 double len = hyp / 4;
Chris@1266 379 double x1 = hyp - (hyp + len) * sin(angle);
Chris@1266 380 double y1 = hyp + (hyp + len) * cos(angle);
Chris@0 381
Chris@1266 382 paint.drawLine(int(x0), int(y0), int(x1), int(y1));
Chris@0 383 }
Chris@0 384 }
Chris@0 385
Chris@0 386
Chris@0 387 void AudioDial::setKnobColor(const QColor& color)
Chris@0 388 {
Chris@0 389 m_knobColor = color;
Chris@0 390 update();
Chris@0 391 }
Chris@0 392
Chris@0 393
Chris@0 394 void AudioDial::setMeterColor(const QColor& color)
Chris@0 395 {
Chris@0 396 m_meterColor = color;
Chris@0 397 update();
Chris@0 398 }
Chris@0 399
Chris@0 400
Chris@0 401 void AudioDial::setMouseDial(bool mouseDial)
Chris@0 402 {
Chris@0 403 m_mouseDial = mouseDial;
Chris@0 404 }
Chris@0 405
Chris@0 406
Chris@34 407 void AudioDial::setDefaultValue(int defaultValue)
Chris@34 408 {
Chris@34 409 m_defaultValue = defaultValue;
Chris@344 410 if (m_rangeMapper) {
Chris@344 411 m_defaultMappedValue = m_rangeMapper->getValueForPosition(defaultValue);
Chris@344 412 }
Chris@34 413 }
Chris@34 414
Chris@219 415 void AudioDial::setValue(int value)
Chris@219 416 {
Chris@219 417 QDial::setValue(value);
Chris@219 418 updateMappedValue(value);
Chris@219 419 }
Chris@219 420
Chris@908 421 void AudioDial::setDefaultMappedValue(double value)
Chris@344 422 {
Chris@344 423 m_defaultMappedValue = value;
Chris@344 424 if (m_rangeMapper) {
Chris@344 425 m_defaultValue = m_rangeMapper->getPositionForValue(value);
Chris@344 426 }
Chris@344 427 }
Chris@219 428
Chris@908 429 void AudioDial::setMappedValue(double mappedValue)
Chris@177 430 {
Chris@177 431 if (m_rangeMapper) {
Chris@177 432 int newPosition = m_rangeMapper->getPositionForValue(mappedValue);
Chris@190 433 bool changed = (m_mappedValue != mappedValue);
Chris@177 434 m_mappedValue = mappedValue;
Chris@177 435 m_noMappedUpdate = true;
Chris@587 436 SVDEBUG << "AudioDial::setMappedValue(" << mappedValue << "): new position is " << newPosition << endl;
Chris@177 437 if (newPosition != value()) {
Chris@177 438 setValue(newPosition);
Chris@190 439 } else if (changed) {
Chris@177 440 emit valueChanged(newPosition);
Chris@177 441 }
Chris@177 442 m_noMappedUpdate = false;
Chris@177 443 } else {
Chris@187 444 setValue(int(mappedValue));
Chris@177 445 }
Chris@177 446 }
Chris@177 447
Chris@177 448
Chris@168 449 void AudioDial::setShowToolTip(bool show)
Chris@168 450 {
Chris@168 451 m_showTooltip = show;
Chris@168 452 m_noMappedUpdate = true;
Chris@168 453 updateMappedValue(value());
Chris@168 454 m_noMappedUpdate = false;
Chris@168 455 }
Chris@168 456
Chris@168 457
Chris@1584 458 void AudioDial::setProvideContextMenu(bool provide)
Chris@1584 459 {
Chris@1584 460 m_provideContextMenu = provide;
Chris@1584 461 }
Chris@1584 462
Chris@1584 463
Chris@908 464 double AudioDial::mappedValue() const
Chris@167 465 {
Chris@168 466 if (m_rangeMapper) {
Chris@587 467 // SVDEBUG << "AudioDial::mappedValue(): value = " << value() << ", mappedValue = " << m_mappedValue << endl;
Chris@168 468 return m_mappedValue;
Chris@168 469 }
Chris@168 470 return value();
Chris@168 471 }
Chris@168 472
Chris@168 473
Chris@168 474 void AudioDial::updateMappedValue(int value)
Chris@168 475 {
Chris@170 476 if (!m_noMappedUpdate) {
Chris@170 477 if (m_rangeMapper) {
Chris@168 478 m_mappedValue = m_rangeMapper->getValueForPosition(value);
Chris@170 479 } else {
Chris@170 480 m_mappedValue = value;
Chris@168 481 }
Chris@168 482 }
Chris@168 483
Chris@1584 484 QString name = objectName();
Chris@1584 485 QString label;
Chris@1584 486 if (m_rangeMapper) {
Chris@1584 487 label = m_rangeMapper->getLabel(value);
Chris@1584 488 }
Chris@1584 489 QString text;
Chris@1584 490 if (label != "") {
Chris@1584 491 if (name != "") {
Chris@1584 492 text = tr("%1: %2").arg(name).arg(label);
Chris@1584 493 } else {
Chris@1584 494 text = label;
Chris@1584 495 }
Chris@1584 496 } else {
Chris@1584 497 QString unit = "";
Chris@1584 498 if (m_rangeMapper) {
Chris@1584 499 unit = m_rangeMapper->getUnit();
Chris@1584 500 }
Chris@1584 501 if (name != "") {
Chris@1584 502 text = tr("%1: %2%3").arg(name).arg(m_mappedValue).arg(unit);
Chris@1584 503 } else {
Chris@1584 504 text = tr("%2%3").arg(m_mappedValue).arg(unit);
Chris@1584 505 }
Chris@1584 506 }
Chris@1584 507
Chris@1584 508 m_title = text;
Chris@1584 509
Chris@168 510 if (m_showTooltip) {
Chris@168 511 setToolTip(text);
Chris@1584 512 } else {
Chris@1584 513 setToolTip("");
Chris@168 514 }
Chris@167 515 }
Chris@167 516
Chris@344 517 void
Chris@344 518 AudioDial::setToDefault()
Chris@344 519 {
Chris@344 520 if (m_rangeMapper) {
Chris@344 521 setMappedValue(m_defaultMappedValue);
Chris@344 522 return;
Chris@344 523 }
Chris@344 524 int dv = m_defaultValue;
Chris@344 525 if (dv < minimum()) dv = minimum();
Chris@344 526 if (dv > maximum()) dv = maximum();
Chris@344 527 setValue(m_defaultValue);
Chris@344 528 }
Chris@167 529
Chris@0 530 // Alternate mouse behavior event handlers.
Chris@0 531 void AudioDial::mousePressEvent(QMouseEvent *mouseEvent)
Chris@0 532 {
Chris@0 533 if (m_mouseDial) {
Chris@1266 534 QDial::mousePressEvent(mouseEvent);
Chris@187 535 } else if (mouseEvent->button() == Qt::MidButton ||
Chris@187 536 ((mouseEvent->button() == Qt::LeftButton) &&
Chris@187 537 (mouseEvent->modifiers() & Qt::ControlModifier))) {
Chris@344 538 setToDefault();
Chris@187 539 } else if (mouseEvent->button() == Qt::LeftButton) {
Chris@1266 540 m_mousePressed = true;
Chris@1266 541 m_posMouse = mouseEvent->pos();
Chris@34 542 }
Chris@34 543 }
Chris@34 544
Chris@34 545
Chris@34 546 void AudioDial::mouseDoubleClickEvent(QMouseEvent *mouseEvent)
Chris@34 547 {
Chris@187 548 //!!! needs a common base class with Thumbwheel
Chris@187 549
Chris@34 550 if (m_mouseDial) {
Chris@1266 551 QDial::mouseDoubleClickEvent(mouseEvent);
Chris@187 552 } else if (mouseEvent->button() != Qt::LeftButton) {
Chris@187 553 return;
Chris@187 554 }
Chris@167 555
Chris@1584 556 edit();
Chris@1584 557 }
Chris@1584 558
Chris@1584 559 void AudioDial::edit()
Chris@1584 560 {
Chris@187 561 bool ok = false;
Chris@167 562
Chris@187 563 if (m_rangeMapper) {
Chris@187 564
Chris@908 565 double min = m_rangeMapper->getValueForPosition(minimum());
Chris@908 566 double max = m_rangeMapper->getValueForPosition(maximum());
Chris@187 567
Chris@187 568 if (min > max) {
Chris@908 569 double tmp = min;
Chris@187 570 min = max;
Chris@187 571 max = tmp;
Chris@187 572 }
Chris@167 573
Chris@187 574 QString unit = m_rangeMapper->getUnit();
Chris@187 575
Chris@187 576 QString text;
Chris@187 577 if (objectName() != "") {
Chris@187 578 if (unit != "") {
Chris@187 579 text = tr("New value for %1, from %2 to %3 %4:")
Chris@187 580 .arg(objectName()).arg(min).arg(max).arg(unit);
Chris@167 581 } else {
Chris@187 582 text = tr("New value for %1, from %2 to %3:")
Chris@187 583 .arg(objectName()).arg(min).arg(max);
Chris@167 584 }
Chris@187 585 } else {
Chris@187 586 if (unit != "") {
Chris@187 587 text = tr("Enter a new value from %1 to %2 %3:")
Chris@187 588 .arg(min).arg(max).arg(unit);
Chris@187 589 } else {
Chris@187 590 text = tr("Enter a new value from %1 to %2:")
Chris@187 591 .arg(min).arg(max);
Chris@168 592 }
Chris@187 593 }
Chris@187 594
Chris@908 595 double newValue = QInputDialog::getDouble
Chris@187 596 (this,
Chris@187 597 tr("Enter new value"),
Chris@187 598 text,
Chris@187 599 m_mappedValue,
Chris@187 600 min,
Chris@187 601 max,
Chris@187 602 4,
Chris@187 603 &ok);
Chris@187 604
Chris@187 605 if (ok) {
Chris@187 606 setMappedValue(newValue);
Chris@187 607 }
Chris@187 608
Chris@187 609 } else {
Chris@187 610
Chris@616 611 int newPosition = QInputDialog::getInt
Chris@187 612 (this,
Chris@187 613 tr("Enter new value"),
Chris@187 614 tr("Enter a new value from %1 to %2:")
Chris@187 615 .arg(minimum()).arg(maximum()),
Chris@395 616 value(), minimum(), maximum(), singleStep(), &ok);
Chris@187 617
Chris@187 618 if (ok) {
Chris@187 619 setValue(newPosition);
Chris@167 620 }
Chris@0 621 }
Chris@0 622 }
Chris@0 623
Chris@0 624
Chris@0 625 void AudioDial::mouseMoveEvent(QMouseEvent *mouseEvent)
Chris@0 626 {
Chris@0 627 if (m_mouseDial) {
Chris@1266 628 QDial::mouseMoveEvent(mouseEvent);
Chris@0 629 } else if (m_mousePressed) {
Chris@1266 630 const QPoint& posMouse = mouseEvent->pos();
Chris@1266 631 int v = QDial::value()
Chris@1266 632 + (posMouse.x() - m_posMouse.x())
Chris@1266 633 + (m_posMouse.y() - posMouse.y());
Chris@1266 634 if (v > QDial::maximum())
Chris@1266 635 v = QDial::maximum();
Chris@1266 636 else
Chris@1266 637 if (v < QDial::minimum())
Chris@1266 638 v = QDial::minimum();
Chris@1266 639 m_posMouse = posMouse;
Chris@1266 640 QDial::setValue(v);
Chris@0 641 }
Chris@0 642 }
Chris@0 643
Chris@0 644
Chris@0 645 void AudioDial::mouseReleaseEvent(QMouseEvent *mouseEvent)
Chris@0 646 {
Chris@0 647 if (m_mouseDial) {
Chris@1266 648 QDial::mouseReleaseEvent(mouseEvent);
Chris@0 649 } else if (m_mousePressed) {
Chris@1266 650 m_mousePressed = false;
Chris@0 651 }
Chris@0 652 }
Chris@0 653
Chris@189 654 void
Chris@189 655 AudioDial::enterEvent(QEvent *e)
Chris@189 656 {
Chris@189 657 QDial::enterEvent(e);
Chris@189 658 emit mouseEntered();
Chris@189 659 }
Chris@189 660
Chris@189 661 void
Chris@189 662 AudioDial::leaveEvent(QEvent *e)
Chris@189 663 {
Chris@189 664 QDial::enterEvent(e);
Chris@189 665 emit mouseLeft();
Chris@189 666 }
Chris@189 667