#define MAX_FREQ_VALUE 96000
#define MIN_FREQ_VALUE 1000
-const QString AudioSpectrum::directions[] = {"North", "Northeast", "East", "Southeast"};
-
AudioSpectrum::AudioSpectrum(QWidget *parent) :
AbstractAudioScopeWidget(false, parent),
- m_fftTools(),
- m_rescaleMinDist(8),
- m_rescaleVerticalThreshold(2.0f),
- m_rescaleActive(false),
- m_rescalePropertiesLocked(false),
- m_rescaleScale(1)
+ m_fftTools()
{
ui = new Ui::AudioSpectrum_UI;
ui->setupUi(this);
///// EVENTS /////
-void AudioSpectrum::mouseMoveEvent(QMouseEvent *event)
+void AudioSpectrum::handleMouseDrag(const QPoint movement, const RescaleDirection rescaleDirection, const Qt::KeyboardModifiers rescaleModifiers)
{
- QPoint movement = event->pos()-m_rescaleStartPoint;
-
- if (m_rescaleActive) {
- if (m_rescalePropertiesLocked) {
- // Direction is known, now adjust parameters
-
- // Reset the starting point to make the next moveEvent relative to the current one
- m_rescaleStartPoint = event->pos();
-
-
- if (!m_rescaleFirstRescaleDone) {
- // We have just learned the desired direction; Normalize the movement to one pixel
- // to avoid a jump by m_rescaleMinDist
-
- if (movement.x() != 0) {
- movement.setX(movement.x() / abs(movement.x()));
- }
- if (movement.y() != 0) {
- movement.setY(movement.y() / abs(movement.y()));
- }
-
- m_rescaleFirstRescaleDone = true;
- }
-
- if (m_rescaleClockDirection == AudioSpectrum::North) {
- // Nort-South direction: Adjust the dB scale
+ if (rescaleDirection == AudioSpectrum::North) {
+ // Nort-South direction: Adjust the dB scale
- if ((m_rescaleModifiers & Qt::ShiftModifier) == 0) {
+ if ((rescaleModifiers & Qt::ShiftModifier) == 0) {
- // By default adjust the min dB value
- m_dBmin += movement.y();
+ // By default adjust the min dB value
+ m_dBmin += movement.y();
- } else {
+ } else {
- // Adjust max dB value if Shift is pressed.
- m_dBmax += movement.y();
+ // Adjust max dB value if Shift is pressed.
+ m_dBmax += movement.y();
- }
+ }
- // Ensure the dB values lie in [-100, 0] (or rather [MIN_DB_VALUE, 0])
- // 0 is the upper bound, everything below -70 dB is most likely noise
+ // Ensure the dB values lie in [-100, 0] (or rather [MIN_DB_VALUE, 0])
+ // 0 is the upper bound, everything below -70 dB is most likely noise
+ if (m_dBmax > 0) {
+ m_dBmax = 0;
+ }
+ if (m_dBmin < MIN_DB_VALUE) {
+ m_dBmin = MIN_DB_VALUE;
+ }
+ // Ensure there is at least 6 dB between the minimum and the maximum value;
+ // lower values hardly make sense
+ if (m_dBmax - m_dBmin < 6) {
+ if ((rescaleModifiers & Qt::ShiftModifier) == 0) {
+ // min was adjusted; Try to adjust the max value to maintain the
+ // minimum dB difference of 6 dB
+ m_dBmax = m_dBmin + 6;
if (m_dBmax > 0) {
m_dBmax = 0;
+ m_dBmin = -6;
}
+ } else {
+ // max was adjusted, adjust min
+ m_dBmin = m_dBmax - 6;
if (m_dBmin < MIN_DB_VALUE) {
m_dBmin = MIN_DB_VALUE;
+ m_dBmax = MIN_DB_VALUE+6;
}
- // Ensure there is at least 6 dB between the minimum and the maximum value;
- // lower values hardly make sense
- if (m_dBmax - m_dBmin < 6) {
- if ((m_rescaleModifiers & Qt::ShiftModifier) == 0) {
- // min was adjusted; Try to adjust the max value to maintain the
- // minimum dB difference of 6 dB
- m_dBmax = m_dBmin + 6;
- if (m_dBmax > 0) {
- m_dBmax = 0;
- m_dBmin = -6;
- }
- } else {
- // max was adjusted, adjust min
- m_dBmin = m_dBmax - 6;
- if (m_dBmin < MIN_DB_VALUE) {
- m_dBmin = MIN_DB_VALUE;
- m_dBmax = MIN_DB_VALUE+6;
- }
- }
- }
-
- forceUpdateHUD();
- forceUpdateScope();
-
- } else if (m_rescaleClockDirection == AudioSpectrum::East) {
- // East-West direction: Adjust the maximum frequency
- m_freqMax -= 100*movement.x();
- if (m_freqMax < MIN_FREQ_VALUE) {
- m_freqMax = MIN_FREQ_VALUE;
- }
- if (m_freqMax > MAX_FREQ_VALUE) {
- m_freqMax = MAX_FREQ_VALUE;
- }
- m_customFreq = true;
-
- forceUpdateHUD();
- forceUpdateScope();
}
+ }
+ forceUpdateHUD();
+ forceUpdateScope();
- } else {
- // Detect the movement direction here.
- // This algorithm relies on the aspect ratio of dy/dx (size and signum).
- if (movement.manhattanLength() > m_rescaleMinDist) {
- float diff = ((float) movement.y())/movement.x();
-
- if (abs(diff) > m_rescaleVerticalThreshold || movement.x() == 0) {
- m_rescaleClockDirection = AudioSpectrum::North;
- } else if (abs(diff) < 1/m_rescaleVerticalThreshold) {
- m_rescaleClockDirection = AudioSpectrum::East;
- } else if (diff < 0) {
- m_rescaleClockDirection = AudioSpectrum::Northeast;
- } else {
- m_rescaleClockDirection = AudioSpectrum::Southeast;
- }
-#ifdef DEBUG_AUDIOSPEC
- qDebug() << "Diff is " << diff << "; chose " << directions[m_rescaleClockDirection] << " as direction";
-#endif
- m_rescalePropertiesLocked = true;
- }
+ } else if (rescaleDirection == AudioSpectrum::East) {
+ // East-West direction: Adjust the maximum frequency
+ m_freqMax -= 100*movement.x();
+ if (m_freqMax < MIN_FREQ_VALUE) {
+ m_freqMax = MIN_FREQ_VALUE;
}
- } else {
- AbstractAudioScopeWidget::mouseMoveEvent(event);
- }
-}
-
-void AudioSpectrum::mousePressEvent(QMouseEvent *event)
-{
- if (event->button() == Qt::LeftButton) {
- // Rescaling mode starts
- m_rescaleActive = true;
- m_rescalePropertiesLocked = false;
- m_rescaleFirstRescaleDone = false;
- m_rescaleStartPoint = event->pos();
- m_rescaleModifiers = event->modifiers();
+ if (m_freqMax > MAX_FREQ_VALUE) {
+ m_freqMax = MAX_FREQ_VALUE;
+ }
+ m_customFreq = true;
- } else {
- AbstractAudioScopeWidget::mousePressEvent(event);
+ forceUpdateHUD();
+ forceUpdateScope();
}
}
-void AudioSpectrum::mouseReleaseEvent(QMouseEvent *event)
-{
- m_rescaleActive = false;
- m_rescalePropertiesLocked = false;
-
- AbstractAudioScopeWidget::mouseReleaseEvent(event);
-}
-
-const QString AudioSpectrum::cfgSignature(const int size)
-{
- return QString("s%1").arg(size);
-}
-
#ifdef DEBUG_AUDIOSPEC
#undef DEBUG_AUDIOSPEC
projects / kdenlive / blobdiff