void FreqWindow::PlotPaint(wxPaintEvent & evt)
{
wxPaintDC dc( (wxWindow *) evt.GetEventObject() );
dc.DrawBitmap( *mBitmap, 0, 0, true );
if( mProcessed == NULL )
return;
int alg = mAlgChoice->GetSelection();
dc.SetFont(mFreqFont);
wxRect r = mPlotRect;
int width = r.width - 2;
float xMin, xMax, xPos, xRatio, xLast, xStep;
if (alg == 0) {
xMin = mRate / mWindowSize;
xMax = mRate / 2;
xRatio = xMax / xMin;
xPos = xMin;
xLast = xPos / 2.0;
if (mLogAxis)
xStep = pow(2.0f, (log(xRatio) / log(2.0f)) / width);
else
xStep = (xMax - xMin) / width;
} else {
xMin = 0;
xMax = mProcessedSize / mRate;
xPos = xMin;
xLast = xPos / 2.0;
xStep = (xMax - xMin) / width;
}
// Find the peak nearest the cursor and plot it
float bestpeak = float(0.0);
if ( r.Contains(mMouseX, mMouseY) & (mMouseX!=0) & (mMouseX!=r.width-1) ) {
if (mLogAxis)
xPos = xMin * pow(xStep, mMouseX - (r.x + 1));
else
xPos = xMin + xStep * (mMouseX - (r.x + 1));
bool up = (mProcessed[1] > mProcessed[0]);
float bestdist = 1000000;
float bestValue = 0.0;
for (int bin = 2; bin < mProcessedSize; bin++) {
bool nowUp = mProcessed[bin] > mProcessed[bin - 1];
if (!nowUp && up) {
// Local maximum. Find actual value by cubic interpolation
int leftbin = bin - 2;
if (leftbin < 1)
leftbin = 1;
float valueAtMax = 0.0;
float max = leftbin + CubicMaximize(mProcessed[leftbin],
mProcessed[leftbin + 1],
mProcessed[leftbin + 2],
mProcessed[leftbin + 3], &valueAtMax);
float thispeak;
if (alg == 0)
thispeak = max * mRate / mWindowSize;
else
thispeak = max / mRate;
if (fabs(thispeak - xPos) < bestdist) {
bestpeak = thispeak;
bestdist = fabs(thispeak - xPos);
bestValue = valueAtMax;
if (thispeak > xPos)
break;
}
}
up = nowUp;
}
int px;
if (mLogAxis)
px = int (log(bestpeak / xMin) / log(xStep));
else
px = int ((bestpeak - xMin) * width / (xMax - xMin));
dc.SetPen(wxPen(wxColour(160,160,160), 1, wxSOLID));
AColor::Line(dc, r.x + 1 + px, r.y, r.x + 1 + px, r.y + r.height);
// print out info about the cursor location
float value;
if (mLogAxis) {
xPos = xMin * pow(xStep, mMouseX - (r.x + 1));
value = GetProcessedValue(xPos, xPos * xStep);
} else {
xPos = xMin + xStep * (mMouseX - (r.x + 1));
value = GetProcessedValue(xPos, xPos + xStep);
}
wxString info;
wxString xpitch;
wxString peakpitch;
const wxChar *xp;
const wxChar *pp;
if (alg == 0) {
xpitch = PitchName_Absolute(FreqToMIDInoteNumber(xPos));
peakpitch = PitchName_Absolute(FreqToMIDInoteNumber(bestpeak));
xp = xpitch.c_str();
pp = peakpitch.c_str();
info.Printf(_("Cursor: %d Hz (%s) = %d dB Peak: %d Hz (%s) = %.1f dB"),
int (xPos + 0.5), xp,
int (value + 0.5), int (bestpeak + 0.5),
pp, bestValue);
} else if (xPos > 0.0 && bestpeak > 0.0) {
xpitch = PitchName_Absolute(FreqToMIDInoteNumber(1.0 / xPos));
peakpitch = PitchName_Absolute(FreqToMIDInoteNumber(1.0 / bestpeak));
xp = xpitch.c_str();
pp = peakpitch.c_str();
info.Printf(_("Cursor: %.4f sec (%d Hz) (%s) = %f, Peak: %.4f sec (%d Hz) (%s) = %.3f"),
xPos,
int (1.0 / xPos + 0.5),
xp, value, bestpeak, int (1.0 / bestpeak + 0.5), pp, bestValue);
}
mInfoText->SetLabel(info);
}
else
mInfoText->SetLabel(wxT(""));
// Outline the graph
dc.SetPen(*wxBLACK_PEN);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.DrawRectangle(r);
}
void FreqWindow::PlotPaint(wxPaintEvent & event)
{
wxPaintDC dc( (wxWindow *) event.GetEventObject() );
dc.DrawBitmap( *mBitmap, 0, 0, true );
// Fix for Bug 1226 "Plot Spectrum freezes... if insufficient samples selected"
if (!mData || mDataLen < mWindowSize)
return;
dc.SetFont(mFreqFont);
wxRect r = mPlotRect;
int width = r.width - 2;
float xMin, xMax, xRatio, xStep;
if (mAlg == SpectrumAnalyst::Spectrum) {
xMin = mRate / mWindowSize;
xMax = mRate / 2;
xRatio = xMax / xMin;
if (mLogAxis)
xStep = pow(2.0f, (log(xRatio) / log(2.0f)) / width);
else
xStep = (xMax - xMin) / width;
} else {
xMin = 0;
xMax = mAnalyst->GetProcessedSize() / mRate;
xStep = (xMax - xMin) / width;
}
float xPos = xMin;
// Find the peak nearest the cursor and plot it
if ( r.Contains(mMouseX, mMouseY) & (mMouseX!=0) & (mMouseX!=r.width-1) ) {
if (mLogAxis)
xPos = xMin * pow(xStep, mMouseX - (r.x + 1));
else
xPos = xMin + xStep * (mMouseX - (r.x + 1));
float bestValue = 0;
float bestpeak = mAnalyst->FindPeak(xPos, &bestValue);
int px;
if (mLogAxis)
px = (int)(log(bestpeak / xMin) / log(xStep));
else
px = (int)((bestpeak - xMin) * width / (xMax - xMin));
dc.SetPen(wxPen(wxColour(160,160,160), 1, wxSOLID));
AColor::Line(dc, r.x + 1 + px, r.y, r.x + 1 + px, r.y + r.height);
// print out info about the cursor location
float value;
if (mLogAxis) {
xPos = xMin * pow(xStep, mMouseX - (r.x + 1));
value = mAnalyst->GetProcessedValue(xPos, xPos * xStep);
} else {
xPos = xMin + xStep * (mMouseX - (r.x + 1));
value = mAnalyst->GetProcessedValue(xPos, xPos + xStep);
}
wxString cursor;
wxString peak;
wxString xpitch;
wxString peakpitch;
const wxChar *xp;
const wxChar *pp;
if (mAlg == SpectrumAnalyst::Spectrum) {
xpitch = PitchName_Absolute(FreqToMIDInote(xPos));
peakpitch = PitchName_Absolute(FreqToMIDInote(bestpeak));
xp = xpitch;
pp = peakpitch;
/* i18n-hint: The %d's are replaced by numbers, the %s by musical notes, e.g. A#*/
cursor.Printf(_("%d Hz (%s) = %d dB"), (int)(xPos + 0.5), xp, (int)(value + 0.5));
peak.Printf(_("%d Hz (%s) = %.1f dB"), (int)(bestpeak + 0.5), pp, bestValue);
} else if (xPos > 0.0 && bestpeak > 0.0) {
xpitch = PitchName_Absolute(FreqToMIDInote(1.0 / xPos));
peakpitch = PitchName_Absolute(FreqToMIDInote(1.0 / bestpeak));
xp = xpitch;
pp = peakpitch;
/* i18n-hint: The %d's are replaced by numbers, the %s by musical notes, e.g. A#
* the %.4f are numbers, and 'sec' should be an abbreviation for seconds */
cursor.Printf(_("%.4f sec (%d Hz) (%s) = %f"),
xPos, (int)(1.0 / xPos + 0.5), xp, value);
peak.Printf(_("%.4f sec (%d Hz) (%s) = %.3f"),
bestpeak, (int)(1.0 / bestpeak + 0.5), pp, bestValue);
}
mCursorText->SetValue(cursor);
mPeakText->SetValue(peak);
}
else {
mCursorText->SetValue(wxT(""));
mPeakText->SetValue(wxT(""));
}
// Outline the graph
dc.SetPen(*wxBLACK_PEN);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.DrawRectangle(r);
}
