QImage Spectrogram::renderHUD(uint)
{
+ if (m_innerScopeRect.width() > 0 && m_innerScopeRect.height() > 0) {
+ QTime start = QTime::currentTime();
- QTime start = QTime::currentTime();
+ int x, y;
+ const uint minDistY = 30; // Minimum distance between two lines
+ const uint minDistX = 40;
+ const uint textDistX = 10;
+ const uint textDistY = 25;
+ const uint topDist = m_innerScopeRect.top() - m_scopeRect.top();
+ const uint leftDist = m_innerScopeRect.left() - m_scopeRect.left();
+ const int mouseX = m_mousePos.x() - m_innerScopeRect.left();
+ const int mouseY = m_mousePos.y() - m_innerScopeRect.top();
+ bool hideText;
- int x, y;
- const uint minDistY = 30; // Minimum distance between two lines
- const uint minDistX = 40;
- const uint textDistX = 10;
- const uint textDistY = 25;
- const uint topDist = m_innerScopeRect.top() - m_scopeRect.top();
- const uint leftDist = m_innerScopeRect.left() - m_scopeRect.left();
- const int mouseX = m_mousePos.x() - m_innerScopeRect.left();
- const int mouseY = m_mousePos.y() - m_innerScopeRect.top();
- bool hideText;
+ QImage hud(m_scopeRect.size(), QImage::Format_ARGB32);
+ hud.fill(qRgba(0,0,0,0));
- QImage hud(m_scopeRect.size(), QImage::Format_ARGB32);
- hud.fill(qRgba(0,0,0,0));
+ QPainter davinci(&hud);
+ davinci.setPen(AbstractScopeWidget::penLight);
- QPainter davinci(&hud);
- davinci.setPen(AbstractScopeWidget::penLight);
+ // Frame display
+ if (m_aGrid->isChecked()) {
+ for (int frameNumber = 0; frameNumber < m_innerScopeRect.height(); frameNumber += minDistY) {
+ y = topDist + m_innerScopeRect.height()-1 - frameNumber;
+ hideText = m_aTrackMouse->isChecked() && m_mouseWithinWidget && abs(y - mouseY) < (int)textDistY && mouseY < m_innerScopeRect.height()
+ && mouseX < m_innerScopeRect.width() && mouseX >= 0;
- // Frame display
- if (m_aGrid->isChecked()) {
- for (int frameNumber = 0; frameNumber < m_innerScopeRect.height(); frameNumber += minDistY) {
- y = topDist + m_innerScopeRect.height()-1 - frameNumber;
- hideText = m_aTrackMouse->isChecked() && m_mouseWithinWidget && abs(y - mouseY) < (int)textDistY && mouseY < m_innerScopeRect.height()
- && mouseX < m_innerScopeRect.width() && mouseX >= 0;
-
- davinci.drawLine(leftDist, y, leftDist + m_innerScopeRect.width()-1, y);
- if (!hideText) {
- davinci.drawText(leftDist + m_innerScopeRect.width() + textDistX, y + 6, QVariant(frameNumber).toString());
+ davinci.drawLine(leftDist, y, leftDist + m_innerScopeRect.width()-1, y);
+ if (!hideText) {
+ davinci.drawText(leftDist + m_innerScopeRect.width() + textDistX, y + 6, QVariant(frameNumber).toString());
+ }
}
}
- }
- // Draw a line through the mouse position with the correct Frame number
- if (m_aTrackMouse->isChecked() && m_mouseWithinWidget && mouseY < m_innerScopeRect.height()
- && mouseX < m_innerScopeRect.width() && mouseX >= 0) {
- davinci.setPen(AbstractScopeWidget::penLighter);
-
- x = leftDist + mouseX;
- y = topDist + mouseY - 20;
- if (y < 0) {
- y = 0;
- }
- if (y > (int)topDist + m_innerScopeRect.height()-1 - 30) {
- y = topDist + m_innerScopeRect.height()-1 - 30;
+ // Draw a line through the mouse position with the correct Frame number
+ if (m_aTrackMouse->isChecked() && m_mouseWithinWidget && mouseY < m_innerScopeRect.height()
+ && mouseX < m_innerScopeRect.width() && mouseX >= 0) {
+ davinci.setPen(AbstractScopeWidget::penLighter);
+
+ x = leftDist + mouseX;
+ y = topDist + mouseY - 20;
+ if (y < 0) {
+ y = 0;
+ }
+ if (y > (int)topDist + m_innerScopeRect.height()-1 - 30) {
+ y = topDist + m_innerScopeRect.height()-1 - 30;
+ }
+ davinci.drawLine(x, topDist + mouseY, leftDist + m_innerScopeRect.width()-1, topDist + mouseY);
+ davinci.drawText(leftDist + m_innerScopeRect.width() + textDistX,
+ y,
+ m_scopeRect.right()-m_innerScopeRect.right()-textDistX,
+ 40,
+ Qt::AlignLeft,
+ i18n("Frame\n%1", m_innerScopeRect.height()-1-mouseY));
}
- davinci.drawLine(x, topDist + mouseY, leftDist + m_innerScopeRect.width()-1, topDist + mouseY);
- davinci.drawText(leftDist + m_innerScopeRect.width() + textDistX,
- y,
- m_scopeRect.right()-m_innerScopeRect.right()-textDistX,
- 40,
- Qt::AlignLeft,
- i18n("Frame\n%1", m_innerScopeRect.height()-1-mouseY));
- }
- // Frequency grid
- const uint hzDiff = ceil( ((float)minDistX)/m_innerScopeRect.width() * m_freqMax / 1000 ) * 1000;
- const int rightBorder = leftDist + m_innerScopeRect.width()-1;
- x = 0;
- y = topDist + m_innerScopeRect.height() + textDistY;
- if (m_aGrid->isChecked()) {
- for (uint hz = 0; x <= rightBorder; hz += hzDiff) {
- davinci.setPen(AbstractScopeWidget::penLight);
- x = leftDist + (m_innerScopeRect.width()-1) * ((float)hz)/m_freqMax;
-
- // Hide text if it would overlap with the text drawn at the mouse position
- hideText = m_aTrackMouse->isChecked() && m_mouseWithinWidget && abs(x-(leftDist + mouseX + 20)) < (int) minDistX + 16
- && mouseX < m_innerScopeRect.width() && mouseX >= 0;
-
- if (x <= rightBorder) {
- davinci.drawLine(x, topDist, x, topDist + m_innerScopeRect.height()+6);
- }
- if (x+textDistY < leftDist + m_innerScopeRect.width()) {
- // Only draw the text label if there is still enough room for the final one at the right.
- if (!hideText) {
- davinci.drawText(x-4, y, QVariant(hz/1000).toString());
+ // Frequency grid
+ const uint hzDiff = ceil( ((float)minDistX)/m_innerScopeRect.width() * m_freqMax / 1000 ) * 1000;
+ const int rightBorder = leftDist + m_innerScopeRect.width()-1;
+ x = 0;
+ y = topDist + m_innerScopeRect.height() + textDistY;
+ if (m_aGrid->isChecked()) {
+ for (uint hz = 0; x <= rightBorder; hz += hzDiff) {
+ davinci.setPen(AbstractScopeWidget::penLight);
+ x = leftDist + (m_innerScopeRect.width()-1) * ((float)hz)/m_freqMax;
+
+ // Hide text if it would overlap with the text drawn at the mouse position
+ hideText = m_aTrackMouse->isChecked() && m_mouseWithinWidget && abs(x-(leftDist + mouseX + 20)) < (int) minDistX + 16
+ && mouseX < m_innerScopeRect.width() && mouseX >= 0;
+
+ if (x <= rightBorder) {
+ davinci.drawLine(x, topDist, x, topDist + m_innerScopeRect.height()+6);
+ }
+ if (x+textDistY < leftDist + m_innerScopeRect.width()) {
+ // Only draw the text label if there is still enough room for the final one at the right.
+ if (!hideText) {
+ davinci.drawText(x-4, y, QVariant(hz/1000).toString());
+ }
}
- }
- if (hz > 0) {
- // Draw finer lines between the main lines
- davinci.setPen(AbstractScopeWidget::penLightDots);
- for (uint dHz = 3; dHz > 0; dHz--) {
- x = leftDist + m_innerScopeRect.width() * ((float)hz - dHz * hzDiff/4.0f)/m_freqMax;
- if (x > rightBorder) {
- break;
+ if (hz > 0) {
+ // Draw finer lines between the main lines
+ davinci.setPen(AbstractScopeWidget::penLightDots);
+ for (uint dHz = 3; dHz > 0; dHz--) {
+ x = leftDist + m_innerScopeRect.width() * ((float)hz - dHz * hzDiff/4.0f)/m_freqMax;
+ if (x > rightBorder) {
+ break;
+ }
+ davinci.drawLine(x, topDist, x, topDist + m_innerScopeRect.height()-1);
}
- davinci.drawLine(x, topDist, x, topDist + m_innerScopeRect.height()-1);
}
}
+ // Draw the line at the very right (maximum frequency)
+ x = leftDist + m_innerScopeRect.width()-1;
+ hideText = m_aTrackMouse->isChecked() && m_mouseWithinWidget && abs(x-(leftDist + mouseX + 30)) < (int) minDistX
+ && mouseX < m_innerScopeRect.width() && mouseX >= 0;
+ davinci.drawLine(x, topDist, x, topDist + m_innerScopeRect.height()+6);
+ if (!hideText) {
+ davinci.drawText(x-10, y, i18n("%1 kHz").arg((double)m_freqMax/1000, 0, 'f', 1));
+ }
}
- // Draw the line at the very right (maximum frequency)
- x = leftDist + m_innerScopeRect.width()-1;
- hideText = m_aTrackMouse->isChecked() && m_mouseWithinWidget && abs(x-(leftDist + mouseX + 30)) < (int) minDistX
- && mouseX < m_innerScopeRect.width() && mouseX >= 0;
- davinci.drawLine(x, topDist, x, topDist + m_innerScopeRect.height()+6);
- if (!hideText) {
- davinci.drawText(x-10, y, i18n("%1 kHz").arg((double)m_freqMax/1000, 0, 'f', 1));
- }
- }
- // Draw a line through the mouse position with the correct frequency label
- if (m_aTrackMouse->isChecked() && m_mouseWithinWidget && mouseX < m_innerScopeRect.width() && mouseX >= 0) {
- davinci.setPen(AbstractScopeWidget::penThin);
- x = leftDist + mouseX;
- davinci.drawLine(x, topDist, x, topDist + m_innerScopeRect.height()+6);
- davinci.drawText(x-10, y, i18n("%1 kHz")
- .arg((double)(m_mousePos.x()-m_innerScopeRect.left())/m_innerScopeRect.width() * m_freqMax/1000, 0, 'f', 2));
- }
+ // Draw a line through the mouse position with the correct frequency label
+ if (m_aTrackMouse->isChecked() && m_mouseWithinWidget && mouseX < m_innerScopeRect.width() && mouseX >= 0) {
+ davinci.setPen(AbstractScopeWidget::penThin);
+ x = leftDist + mouseX;
+ davinci.drawLine(x, topDist, x, topDist + m_innerScopeRect.height()+6);
+ davinci.drawText(x-10, y, i18n("%1 kHz")
+ .arg((double)(m_mousePos.x()-m_innerScopeRect.left())/m_innerScopeRect.width() * m_freqMax/1000, 0, 'f', 2));
+ }
- // Draw the dB brightness scale
- float val;
- davinci.setPen(AbstractScopeWidget::penLighter);
- for (y = topDist; y < (int)topDist + m_innerScopeRect.height(); y++) {
- val = 1-((float)y-topDist)/(m_innerScopeRect.height()-1);
- int col = qRgba(255, 255, 255, 255.0 * val);
- for (x = leftDist-6; x >= (int)leftDist-13; x--) {
- hud.setPixel(x, y, col);
+ // Draw the dB brightness scale
+ float val;
+ davinci.setPen(AbstractScopeWidget::penLighter);
+ for (y = topDist; y < (int)topDist + m_innerScopeRect.height(); y++) {
+ val = 1-((float)y-topDist)/(m_innerScopeRect.height()-1);
+ int col = qRgba(255, 255, 255, 255.0 * val);
+ for (x = leftDist-6; x >= (int)leftDist-13; x--) {
+ hud.setPixel(x, y, col);
+ }
}
- }
- const int rectWidth = leftDist-m_scopeRect.left()-22;
- const int rectHeight = 50;
- davinci.setFont(QFont(QFont().defaultFamily(), 10));
- davinci.drawText(m_scopeRect.left(), topDist, rectWidth, rectHeight, Qt::AlignRight, i18n("%1\ndB", m_dBmax));
- davinci.drawText(m_scopeRect.left(), topDist + m_innerScopeRect.height()-20, rectWidth, rectHeight, Qt::AlignRight, i18n("%1\ndB", m_dBmin));
+ const int rectWidth = leftDist-m_scopeRect.left()-22;
+ const int rectHeight = 50;
+ davinci.setFont(QFont(QFont().defaultFamily(), 10));
+ davinci.drawText(m_scopeRect.left(), topDist, rectWidth, rectHeight, Qt::AlignRight, i18n("%1\ndB", m_dBmax));
+ davinci.drawText(m_scopeRect.left(), topDist + m_innerScopeRect.height()-20, rectWidth, rectHeight, Qt::AlignRight, i18n("%1\ndB", m_dBmin));
- emit signalHUDRenderingFinished(start.elapsed(), 1);
- return hud;
+ emit signalHUDRenderingFinished(start.elapsed(), 1);
+ return hud;
+ } else {
+ emit signalHUDRenderingFinished(0, 1);
+ return QImage();
+ }
}
QImage Spectrogram::renderAudioScope(uint, const QVector<int16_t> audioFrame, const int freq,
const int num_channels, const int num_samples, const int newData) {
- if (audioFrame.size() > 63) {
+ if (
+ audioFrame.size() > 63
+ && m_innerScopeRect.width() > 0 && m_innerScopeRect.height() > 0
+ ) {
if (!m_customFreq) {
m_freqMax = freq / 2;
}
bool newDataAvailable = newData > 0;
- //TODO highlight data above certain limit (-6 dB)
-
#ifdef DEBUG_SPECTROGRAM
qDebug() << "New data for " << widgetName() << ": " << newDataAvailable << " (" << newData << " units)";
#endif
projects / kdenlive / blobdiff