| 1 |
// qsamplerChannelStrip.cpp |
| 2 |
// |
| 3 |
/**************************************************************************** |
| 4 |
Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved. |
| 5 |
Copyright (C) 2007, Christian Schoenebeck |
| 6 |
|
| 7 |
This program is free software; you can redistribute it and/or |
| 8 |
modify it under the terms of the GNU General Public License |
| 9 |
as published by the Free Software Foundation; either version 2 |
| 10 |
of the License, or (at your option) any later version. |
| 11 |
|
| 12 |
This program is distributed in the hope that it will be useful, |
| 13 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 |
GNU General Public License for more details. |
| 16 |
|
| 17 |
You should have received a copy of the GNU General Public License along |
| 18 |
with this program; if not, write to the Free Software Foundation, Inc., |
| 19 |
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 |
|
| 21 |
*****************************************************************************/ |
| 22 |
|
| 23 |
#include "qsamplerAbout.h" |
| 24 |
#include "qsamplerChannelStrip.h" |
| 25 |
|
| 26 |
#include "qsamplerMainForm.h" |
| 27 |
|
| 28 |
#include <QDragEnterEvent> |
| 29 |
#include <QUrl> |
| 30 |
|
| 31 |
// Channel status/usage usage limit control. |
| 32 |
#define QSAMPLER_ERROR_LIMIT 3 |
| 33 |
|
| 34 |
// Needed for lroundf() |
| 35 |
#include <math.h> |
| 36 |
|
| 37 |
namespace QSampler { |
| 38 |
|
| 39 |
#ifndef CONFIG_ROUND |
| 40 |
static inline long lroundf ( float x ) |
| 41 |
{ |
| 42 |
if (x >= 0.0f) |
| 43 |
return long(x + 0.5f); |
| 44 |
else |
| 45 |
return long(x - 0.5f); |
| 46 |
} |
| 47 |
#endif |
| 48 |
|
| 49 |
ChannelStrip::ChannelStrip ( QWidget* pParent, Qt::WindowFlags wflags ) |
| 50 |
: QWidget(pParent, wflags) |
| 51 |
{ |
| 52 |
m_ui.setupUi(this); |
| 53 |
|
| 54 |
// Initialize locals. |
| 55 |
m_pChannel = NULL; |
| 56 |
m_iDirtyChange = 0; |
| 57 |
m_iErrorCount = 0; |
| 58 |
|
| 59 |
// Try to restore normal window positioning. |
| 60 |
adjustSize(); |
| 61 |
|
| 62 |
QObject::connect(m_ui.ChannelSetupPushButton, |
| 63 |
SIGNAL(clicked()), |
| 64 |
SLOT(channelSetup())); |
| 65 |
QObject::connect(m_ui.ChannelMutePushButton, |
| 66 |
SIGNAL(toggled(bool)), |
| 67 |
SLOT(channelMute(bool))); |
| 68 |
QObject::connect(m_ui.ChannelSoloPushButton, |
| 69 |
SIGNAL(toggled(bool)), |
| 70 |
SLOT(channelSolo(bool))); |
| 71 |
QObject::connect(m_ui.VolumeSlider, |
| 72 |
SIGNAL(valueChanged(int)), |
| 73 |
SLOT(volumeChanged(int))); |
| 74 |
QObject::connect(m_ui.VolumeSpinBox, |
| 75 |
SIGNAL(valueChanged(int)), |
| 76 |
SLOT(volumeChanged(int))); |
| 77 |
QObject::connect(m_ui.ChannelEditPushButton, |
| 78 |
SIGNAL(clicked()), |
| 79 |
SLOT(channelEdit())); |
| 80 |
} |
| 81 |
|
| 82 |
ChannelStrip::~ChannelStrip() { |
| 83 |
// Destroy existing channel descriptor. |
| 84 |
if (m_pChannel) |
| 85 |
delete m_pChannel; |
| 86 |
m_pChannel = NULL; |
| 87 |
} |
| 88 |
|
| 89 |
|
| 90 |
// Window drag-n-drop event handlers. |
| 91 |
void ChannelStrip::dragEnterEvent ( QDragEnterEvent* pDragEnterEvent ) |
| 92 |
{ |
| 93 |
if (m_pChannel == NULL) |
| 94 |
return; |
| 95 |
|
| 96 |
bool bAccept = false; |
| 97 |
|
| 98 |
if (pDragEnterEvent->source() == NULL) { |
| 99 |
const QMimeData *pMimeData = pDragEnterEvent->mimeData(); |
| 100 |
if (pMimeData && pMimeData->hasUrls()) { |
| 101 |
QListIterator<QUrl> iter(pMimeData->urls()); |
| 102 |
while (iter.hasNext()) { |
| 103 |
const QString& sFilename = iter.next().toLocalFile(); |
| 104 |
if (!sFilename.isEmpty()) { |
| 105 |
bAccept = qsamplerChannel::isInstrumentFile(sFilename); |
| 106 |
break; |
| 107 |
} |
| 108 |
} |
| 109 |
} |
| 110 |
} |
| 111 |
|
| 112 |
if (bAccept) |
| 113 |
pDragEnterEvent->accept(); |
| 114 |
else |
| 115 |
pDragEnterEvent->ignore(); |
| 116 |
} |
| 117 |
|
| 118 |
|
| 119 |
void ChannelStrip::dropEvent ( QDropEvent* pDropEvent ) |
| 120 |
{ |
| 121 |
if (m_pChannel == NULL) |
| 122 |
return; |
| 123 |
|
| 124 |
if (pDropEvent->source()) |
| 125 |
return; |
| 126 |
|
| 127 |
const QMimeData *pMimeData = pDropEvent->mimeData(); |
| 128 |
if (pMimeData && pMimeData->hasUrls()) { |
| 129 |
QStringList files; |
| 130 |
QListIterator<QUrl> iter(pMimeData->urls()); |
| 131 |
while (iter.hasNext()) { |
| 132 |
const QString& sFilename = iter.next().toLocalFile(); |
| 133 |
if (!sFilename.isEmpty()) { |
| 134 |
// Go and set the dropped instrument filename... |
| 135 |
m_pChannel->setInstrument(sFilename, 0); |
| 136 |
// Open up the channel dialog. |
| 137 |
channelSetup(); |
| 138 |
break; |
| 139 |
} |
| 140 |
} |
| 141 |
} |
| 142 |
} |
| 143 |
|
| 144 |
|
| 145 |
// Channel strip setup formal initializer. |
| 146 |
void ChannelStrip::setup ( qsamplerChannel *pChannel ) |
| 147 |
{ |
| 148 |
// Destroy any previous channel descriptor; |
| 149 |
// (remember that once setup we own it!) |
| 150 |
if (m_pChannel) |
| 151 |
delete m_pChannel; |
| 152 |
|
| 153 |
// Set the new one... |
| 154 |
m_pChannel = pChannel; |
| 155 |
|
| 156 |
// Stabilize this around. |
| 157 |
updateChannelInfo(); |
| 158 |
|
| 159 |
// We'll accept drops from now on... |
| 160 |
if (m_pChannel) |
| 161 |
setAcceptDrops(true); |
| 162 |
} |
| 163 |
|
| 164 |
// Channel secriptor accessor. |
| 165 |
qsamplerChannel *ChannelStrip::channel (void) const |
| 166 |
{ |
| 167 |
return m_pChannel; |
| 168 |
} |
| 169 |
|
| 170 |
|
| 171 |
// Messages view font accessors. |
| 172 |
QFont ChannelStrip::displayFont (void) const |
| 173 |
{ |
| 174 |
return m_ui.EngineNameTextLabel->font(); |
| 175 |
} |
| 176 |
|
| 177 |
void ChannelStrip::setDisplayFont ( const QFont & font ) |
| 178 |
{ |
| 179 |
m_ui.EngineNameTextLabel->setFont(font); |
| 180 |
m_ui.MidiPortChannelTextLabel->setFont(font); |
| 181 |
m_ui.InstrumentNameTextLabel->setFont(font); |
| 182 |
m_ui.InstrumentStatusTextLabel->setFont(font); |
| 183 |
} |
| 184 |
|
| 185 |
|
| 186 |
// Channel display background effect. |
| 187 |
void ChannelStrip::setDisplayEffect ( bool bDisplayEffect ) |
| 188 |
{ |
| 189 |
QPalette pal; |
| 190 |
pal.setColor(QPalette::Foreground, Qt::yellow); |
| 191 |
m_ui.EngineNameTextLabel->setPalette(pal); |
| 192 |
m_ui.MidiPortChannelTextLabel->setPalette(pal); |
| 193 |
pal.setColor(QPalette::Foreground, Qt::green); |
| 194 |
if (bDisplayEffect) { |
| 195 |
QPixmap pm(":/icons/displaybg1.png"); |
| 196 |
pal.setBrush(QPalette::Background, QBrush(pm)); |
| 197 |
} else { |
| 198 |
pal.setColor(QPalette::Background, Qt::black); |
| 199 |
} |
| 200 |
m_ui.ChannelInfoFrame->setPalette(pal); |
| 201 |
m_ui.StreamVoiceCountTextLabel->setPalette(pal); |
| 202 |
} |
| 203 |
|
| 204 |
|
| 205 |
// Maximum volume slider accessors. |
| 206 |
void ChannelStrip::setMaxVolume ( int iMaxVolume ) |
| 207 |
{ |
| 208 |
m_iDirtyChange++; |
| 209 |
m_ui.VolumeSlider->setRange(0, iMaxVolume); |
| 210 |
m_ui.VolumeSpinBox->setRange(0, iMaxVolume); |
| 211 |
m_iDirtyChange--; |
| 212 |
} |
| 213 |
|
| 214 |
|
| 215 |
// Channel setup dialog slot. |
| 216 |
bool ChannelStrip::channelSetup (void) |
| 217 |
{ |
| 218 |
if (m_pChannel == NULL) |
| 219 |
return false; |
| 220 |
|
| 221 |
// Invoke the channel setup dialog. |
| 222 |
bool bResult = m_pChannel->channelSetup(this); |
| 223 |
// Notify that this channel has changed. |
| 224 |
if (bResult) |
| 225 |
emit channelChanged(this); |
| 226 |
|
| 227 |
return bResult; |
| 228 |
} |
| 229 |
|
| 230 |
|
| 231 |
// Channel mute slot. |
| 232 |
bool ChannelStrip::channelMute ( bool bMute ) |
| 233 |
{ |
| 234 |
if (m_pChannel == NULL) |
| 235 |
return false; |
| 236 |
|
| 237 |
// Invoke the channel mute method. |
| 238 |
bool bResult = m_pChannel->setChannelMute(bMute); |
| 239 |
// Notify that this channel has changed. |
| 240 |
if (bResult) |
| 241 |
emit channelChanged(this); |
| 242 |
|
| 243 |
return bResult; |
| 244 |
} |
| 245 |
|
| 246 |
|
| 247 |
// Channel solo slot. |
| 248 |
bool ChannelStrip::channelSolo ( bool bSolo ) |
| 249 |
{ |
| 250 |
if (m_pChannel == NULL) |
| 251 |
return false; |
| 252 |
|
| 253 |
// Invoke the channel solo method. |
| 254 |
bool bResult = m_pChannel->setChannelSolo(bSolo); |
| 255 |
// Notify that this channel has changed. |
| 256 |
if (bResult) |
| 257 |
emit channelChanged(this); |
| 258 |
|
| 259 |
return bResult; |
| 260 |
} |
| 261 |
|
| 262 |
|
| 263 |
// Channel edit slot. |
| 264 |
void ChannelStrip::channelEdit (void) |
| 265 |
{ |
| 266 |
if (m_pChannel == NULL) |
| 267 |
return; |
| 268 |
|
| 269 |
m_pChannel->editChannel(); |
| 270 |
} |
| 271 |
|
| 272 |
|
| 273 |
// Channel reset slot. |
| 274 |
bool ChannelStrip::channelReset (void) |
| 275 |
{ |
| 276 |
if (m_pChannel == NULL) |
| 277 |
return false; |
| 278 |
|
| 279 |
// Invoke the channel reset method. |
| 280 |
bool bResult = m_pChannel->channelReset(); |
| 281 |
// Notify that this channel has changed. |
| 282 |
if (bResult) |
| 283 |
emit channelChanged(this); |
| 284 |
|
| 285 |
return bResult; |
| 286 |
} |
| 287 |
|
| 288 |
|
| 289 |
// Update the channel instrument name. |
| 290 |
bool ChannelStrip::updateInstrumentName ( bool bForce ) |
| 291 |
{ |
| 292 |
if (m_pChannel == NULL) |
| 293 |
return false; |
| 294 |
|
| 295 |
// Do we refresh the actual name? |
| 296 |
if (bForce) |
| 297 |
m_pChannel->updateInstrumentName(); |
| 298 |
|
| 299 |
// Instrument name... |
| 300 |
if (m_pChannel->instrumentName().isEmpty()) { |
| 301 |
if (m_pChannel->instrumentStatus() >= 0) |
| 302 |
m_ui.InstrumentNameTextLabel->setText(' ' + qsamplerChannel::loadingInstrument()); |
| 303 |
else |
| 304 |
m_ui.InstrumentNameTextLabel->setText(' ' + qsamplerChannel::noInstrumentName()); |
| 305 |
} else |
| 306 |
m_ui.InstrumentNameTextLabel->setText(' ' + m_pChannel->instrumentName()); |
| 307 |
|
| 308 |
return true; |
| 309 |
} |
| 310 |
|
| 311 |
|
| 312 |
// Do the dirty volume change. |
| 313 |
bool ChannelStrip::updateChannelVolume (void) |
| 314 |
{ |
| 315 |
if (m_pChannel == NULL) |
| 316 |
return false; |
| 317 |
|
| 318 |
// Convert... |
| 319 |
int iVolume = ::lroundf(100.0f * m_pChannel->volume()); |
| 320 |
// And clip... |
| 321 |
if (iVolume < 0) |
| 322 |
iVolume = 0; |
| 323 |
|
| 324 |
// Flag it here, to avoid infinite recursion. |
| 325 |
m_iDirtyChange++; |
| 326 |
m_ui.VolumeSlider->setValue(iVolume); |
| 327 |
m_ui.VolumeSpinBox->setValue(iVolume); |
| 328 |
m_iDirtyChange--; |
| 329 |
|
| 330 |
return true; |
| 331 |
} |
| 332 |
|
| 333 |
|
| 334 |
// Update whole channel info state. |
| 335 |
bool ChannelStrip::updateChannelInfo (void) |
| 336 |
{ |
| 337 |
if (m_pChannel == NULL) |
| 338 |
return false; |
| 339 |
|
| 340 |
// Check for error limit/recycle... |
| 341 |
if (m_iErrorCount > QSAMPLER_ERROR_LIMIT) |
| 342 |
return true; |
| 343 |
|
| 344 |
// Update strip caption. |
| 345 |
QString sText = m_pChannel->channelName(); |
| 346 |
setWindowTitle(sText); |
| 347 |
m_ui.ChannelSetupPushButton->setText(sText); |
| 348 |
|
| 349 |
// Check if we're up and connected. |
| 350 |
MainForm* pMainForm = MainForm::getInstance(); |
| 351 |
if (pMainForm->client() == NULL) |
| 352 |
return false; |
| 353 |
|
| 354 |
// Read actual channel information. |
| 355 |
m_pChannel->updateChannelInfo(); |
| 356 |
|
| 357 |
// Engine name... |
| 358 |
if (m_pChannel->engineName().isEmpty()) |
| 359 |
m_ui.EngineNameTextLabel->setText(' ' + qsamplerChannel::noEngineName()); |
| 360 |
else |
| 361 |
m_ui.EngineNameTextLabel->setText(' ' + m_pChannel->engineName()); |
| 362 |
|
| 363 |
// Instrument name... |
| 364 |
updateInstrumentName(false); |
| 365 |
|
| 366 |
// MIDI Port/Channel... |
| 367 |
QString sMidiPortChannel = QString::number(m_pChannel->midiPort()) + " / "; |
| 368 |
if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL) |
| 369 |
sMidiPortChannel += tr("All"); |
| 370 |
else |
| 371 |
sMidiPortChannel += QString::number(m_pChannel->midiChannel() + 1); |
| 372 |
m_ui.MidiPortChannelTextLabel->setText(sMidiPortChannel); |
| 373 |
|
| 374 |
// Common palette... |
| 375 |
QPalette pal; |
| 376 |
const QColor& rgbFore = pal.color(QPalette::Foreground); |
| 377 |
|
| 378 |
// Instrument status... |
| 379 |
int iInstrumentStatus = m_pChannel->instrumentStatus(); |
| 380 |
if (iInstrumentStatus < 0) { |
| 381 |
pal.setColor(QPalette::Foreground, Qt::red); |
| 382 |
m_ui.InstrumentStatusTextLabel->setPalette(pal); |
| 383 |
m_ui.InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus)); |
| 384 |
m_iErrorCount++; |
| 385 |
return false; |
| 386 |
} |
| 387 |
// All seems normal... |
| 388 |
pal.setColor(QPalette::Foreground, |
| 389 |
iInstrumentStatus < 100 ? Qt::yellow : Qt::green); |
| 390 |
m_ui.InstrumentStatusTextLabel->setPalette(pal); |
| 391 |
m_ui.InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + '%'); |
| 392 |
m_iErrorCount = 0; |
| 393 |
|
| 394 |
#ifdef CONFIG_MUTE_SOLO |
| 395 |
// Mute/Solo button state coloring... |
| 396 |
bool bMute = m_pChannel->channelMute(); |
| 397 |
const QColor& rgbButton = pal.color(QPalette::Button); |
| 398 |
pal.setColor(QPalette::Foreground, rgbFore); |
| 399 |
pal.setColor(QPalette::Button, bMute ? Qt::yellow : rgbButton); |
| 400 |
m_ui.ChannelMutePushButton->setPalette(pal); |
| 401 |
m_ui.ChannelMutePushButton->setDown(bMute); |
| 402 |
bool bSolo = m_pChannel->channelSolo(); |
| 403 |
pal.setColor(QPalette::Button, bSolo ? Qt::cyan : rgbButton); |
| 404 |
m_ui.ChannelSoloPushButton->setPalette(pal); |
| 405 |
m_ui.ChannelSoloPushButton->setDown(bSolo); |
| 406 |
#else |
| 407 |
m_ui.ChannelMutePushButton->setEnabled(false); |
| 408 |
m_ui.ChannelSoloPushButton->setEnabled(false); |
| 409 |
#endif |
| 410 |
|
| 411 |
// And update the both GUI volume elements; |
| 412 |
// return success if, and only if, intrument is fully loaded... |
| 413 |
return updateChannelVolume() && (iInstrumentStatus == 100); |
| 414 |
} |
| 415 |
|
| 416 |
|
| 417 |
// Update whole channel usage state. |
| 418 |
bool ChannelStrip::updateChannelUsage (void) |
| 419 |
{ |
| 420 |
if (m_pChannel == NULL) |
| 421 |
return false; |
| 422 |
|
| 423 |
MainForm *pMainForm = MainForm::getInstance(); |
| 424 |
if (pMainForm->client() == NULL) |
| 425 |
return false; |
| 426 |
|
| 427 |
// This only makes sense on fully loaded channels... |
| 428 |
if (m_pChannel->instrumentStatus() < 100) |
| 429 |
return false; |
| 430 |
|
| 431 |
// Get current channel voice count. |
| 432 |
int iVoiceCount = ::lscp_get_channel_voice_count(pMainForm->client(), m_pChannel->channelID()); |
| 433 |
// Get current stream count. |
| 434 |
int iStreamCount = ::lscp_get_channel_stream_count(pMainForm->client(), m_pChannel->channelID()); |
| 435 |
// Get current channel buffer fill usage. |
| 436 |
// As benno has suggested this is the percentage usage |
| 437 |
// of the least filled buffer stream... |
| 438 |
int iStreamUsage = ::lscp_get_channel_stream_usage(pMainForm->client(), m_pChannel->channelID());; |
| 439 |
|
| 440 |
// Update the GUI elements... |
| 441 |
m_ui.StreamUsageProgressBar->setValue(iStreamUsage); |
| 442 |
m_ui.StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount)); |
| 443 |
|
| 444 |
// We're clean. |
| 445 |
return true; |
| 446 |
} |
| 447 |
|
| 448 |
|
| 449 |
// Volume change slot. |
| 450 |
void ChannelStrip::volumeChanged ( int iVolume ) |
| 451 |
{ |
| 452 |
if (m_pChannel == NULL) |
| 453 |
return; |
| 454 |
|
| 455 |
// Avoid recursion. |
| 456 |
if (m_iDirtyChange > 0) |
| 457 |
return; |
| 458 |
|
| 459 |
// Convert and clip. |
| 460 |
float fVolume = (float) iVolume / 100.0f; |
| 461 |
if (fVolume < 0.001f) |
| 462 |
fVolume = 0.0f; |
| 463 |
|
| 464 |
// Update the GUI elements. |
| 465 |
if (m_pChannel->setVolume(fVolume)) { |
| 466 |
updateChannelVolume(); |
| 467 |
emit channelChanged(this); |
| 468 |
} |
| 469 |
} |
| 470 |
|
| 471 |
|
| 472 |
// Context menu event handler. |
| 473 |
void ChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent ) |
| 474 |
{ |
| 475 |
if (m_pChannel == NULL) |
| 476 |
return; |
| 477 |
|
| 478 |
// We'll just show up the main form's edit menu (thru qsamplerChannel). |
| 479 |
m_pChannel->contextMenuEvent(pEvent); |
| 480 |
} |
| 481 |
|
| 482 |
|
| 483 |
// Error count hackish accessors. |
| 484 |
void ChannelStrip::resetErrorCount (void) |
| 485 |
{ |
| 486 |
m_iErrorCount = 0; |
| 487 |
} |
| 488 |
|
| 489 |
} // namespace QSampler |
| 490 |
|
| 491 |
|
| 492 |
// end of qsamplerChannelStrip.cpp |
Parent Directory
| 
Revision Log