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// Tue Haste Andersen <haste@diku.dk>, (C) 2003
#include <QTime>
#include "widget/wnumberpos.h"
#include "controlobject.h"
#include "controlobjectthread.h"
#include "util/math.h"
#include "util/time.h"
WNumberPos::WNumberPos(const char* group, QWidget* parent)
: WNumber(parent),
m_dOldValue(0.0),
m_dTrackSamples(0.0),
m_dTrackSampleRate(0.0),
m_bRemain(false) {
m_qsText = "";
m_pShowTrackTimeRemaining = new ControlObjectThread(
"[Controls]", "ShowDurationRemaining");
m_pShowTrackTimeRemaining->connectValueChanged(
this, SLOT(slotSetRemain(double)));
slotSetRemain(m_pShowTrackTimeRemaining->get());
// We use the engine's playposition value directly because the parameter
// normalization done by the widget system used to be unusable for this
// because the range of playposition was -0.14 to 1.14 in 1.11.x. As a
// result, the <Connection> parameter is no longer necessary in skin
// definitions, but leaving it in is harmless.
m_pVisualPlaypos = new ControlObjectThread(group, "playposition");
m_pVisualPlaypos->connectValueChanged(this, SLOT(slotSetValue(double)));
m_pTrackSamples = new ControlObjectThread(
group, "track_samples");
m_pTrackSamples->connectValueChanged(
this, SLOT(slotSetTrackSamples(double)));
// Tell the CO to re-emit its value since we could be created after it was
// set to a valid value.
m_pTrackSamples->emitValueChanged();
m_pTrackSampleRate = new ControlObjectThread(
group, "track_samplerate");
m_pTrackSampleRate->connectValueChanged(
this, SLOT(slotSetTrackSampleRate(double)));
// Tell the CO to re-emit its value since we could be created after it was
// set to a valid value.
m_pTrackSampleRate->emitValueChanged();
slotSetValue(m_pVisualPlaypos->get());
}
WNumberPos::~WNumberPos() {
delete m_pTrackSampleRate;
delete m_pTrackSamples;
delete m_pVisualPlaypos;
delete m_pShowTrackTimeRemaining;
}
void WNumberPos::mousePressEvent(QMouseEvent* pEvent) {
bool leftClick = pEvent->buttons() & Qt::LeftButton;
if (leftClick) {
setRemain(!m_bRemain);
m_pShowTrackTimeRemaining->slotSet(m_bRemain ? 1.0 : 0.0);
}
}
void WNumberPos::slotSetTrackSamples(double dSamples) {
m_dTrackSamples = dSamples;
slotSetValue(m_dOldValue);
}
void WNumberPos::slotSetTrackSampleRate(double dSampleRate) {
m_dTrackSampleRate = dSampleRate;
slotSetValue(m_dOldValue);
}
void WNumberPos::setValue(double dValue) {
// Ignore midi-scaled signals from the skin connection.
Q_UNUSED(dValue);
// Update our value with the old value.
slotSetValue(m_dOldValue);
}
void WNumberPos::slotSetValue(double dValue) {
m_dOldValue = dValue;
double valueMillis = 0.0;
if (m_dTrackSamples > 0 && m_dTrackSampleRate > 0) {
double dDuration = m_dTrackSamples / m_dTrackSampleRate / 2.0;
valueMillis = dValue * 500.0 * m_dTrackSamples / m_dTrackSampleRate;
double durationMillis = dDuration * Time::kMillisPerSecond;
if (m_bRemain)
valueMillis = math_max(durationMillis - valueMillis, 0.0);
}
QString valueString;
if (valueMillis >= 0) {
valueString = m_qsText % Time::formatSeconds(
valueMillis / Time::kMillisPerSecond, true);
} else {
valueString = m_qsText % QLatin1String("-") % Time::formatSeconds(
-valueMillis / Time::kMillisPerSecond, true);
}
setText(valueString);
}
void WNumberPos::slotSetRemain(double remain) {
setRemain(remain > 0.0);
}
void WNumberPos::setRemain(bool bRemain)
{
m_bRemain = bRemain;
// Shift display state between showing position and remaining
if (m_bRemain)
m_qsText = "-";
else
m_qsText = "";
// Have the widget redraw itself with its current value.
slotSetValue(m_dOldValue);
}
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