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Draw dotted lines on frequency selection.

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Patch from Paul Licameli, but simplified.
This commit is contained in:
james.k.crook@gmail.com 2014-10-22 21:06:15 +00:00
parent 57544635f9
commit 3d7dd6c74a
3 changed files with 42 additions and 37 deletions
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8
src/AColor.cpp
View File

@ -627,6 +627,14 @@ void AColor::PreComputeGradient() {
b *= 0.5f;
break;
// For now edge colour is just black.
// Later we might invert or something else funky.
case ColorGradientEdge:
// fully dimmed
r = 0.0f;
g = 0.0f;
b = 0.0f;
break;
}
gradient_pre[selected][grayscale][i][0] = (unsigned char) (255 * r);
gradient_pre[selected][grayscale][i][1] = (unsigned char) (255 * g);

1
src/AColor.h
View File

@ -27,6 +27,7 @@ class AColor {
ColorGradientUnselected = 0,
ColorGradientTimeSelected,
ColorGradientTimeAndFrequencySelected,
ColorGradientEdge,
ColorGradientTotal // keep me last
};

66
src/TrackArtist.cpp
View File

@ -1772,6 +1772,29 @@ static float sumFreqValues(float *freq, int x0, float bin0, float bin1)
return value;
}
// Helper function to decide on which color set to use.
// dashCount counts both dashes and the spaces between them.
AColor::ColorGradientChoice ChooseColorSet( float bin0, float bin1, float selBinLo,
float selBinCenter, float selBinHi, int dashCount )
{
if ( (selBinCenter >= 0) && (bin0 <= selBinCenter) && (selBinCenter < bin1) )
return AColor::ColorGradientEdge;
else if (
(0 == dashCount % 2) &&
(((selBinLo >= 0) && (bin0 <= selBinLo) && ( selBinLo < bin1)) ||
((selBinHi >= 0) && (bin0 <= selBinHi) && ( selBinHi < bin1)) ) )
return AColor::ColorGradientEdge;
else if (
(selBinLo < 0 || selBinLo < bin1) &&
(selBinHi < 0 || selBinHi > bin0) )
return AColor::ColorGradientTimeAndFrequencySelected;
else
return AColor::ColorGradientTimeSelected;
}
void TrackArtist::DrawClipSpectrum(WaveTrack *track,
WaveClip *clip,
wxDC & dc,
@ -1781,6 +1804,7 @@ void TrackArtist::DrawClipSpectrum(WaveTrack *track,
bool logF)
{
enum { MONOCHROME_LINE = 230, COLORED_LINE = 0 };
enum { DASH_LENGTH = 10 /* pixels */ };
#if PROFILE_WAVEFORM
# ifdef __WXMSW__
@ -2045,29 +2069,19 @@ void TrackArtist::DrawClipSpectrum(WaveTrack *track,
float bin0 = float (yy) * binPerPx + minSamples;
float bin1 = float (yy + 1) * binPerPx + minSamples;
// For spectral selection, determine whether we
// are drawing a centre line, and what colour
// For spectral selection, determine what colour
// set to use. We use a darker selection if
// in both spectral range and time range.
bool centerLine = false;
AColor::ColorGradientChoice selected =
AColor::ColorGradientUnselected;
// If we are in the time selected range, then we may use a differnt color set.
if (ssel0 <= w0 && w1 < ssel1)
{
if (selBinCenter >= 0 &&
bin0 <= selBinCenter &&
selBinCenter < bin1)
centerLine = true;
else if((selBinLo < 0 || selBinLo < bin1) &&
(selBinHi < 0 || selBinHi > bin0))
selected =
AColor::ColorGradientTimeAndFrequencySelected;
else
selected =
AColor::ColorGradientTimeSelected;
selected = ChooseColorSet( bin0, bin1, selBinLo, selBinCenter, selBinHi, x/DASH_LENGTH );
}
unsigned char rv, gv, bv;
float value;
@ -2108,10 +2122,6 @@ void TrackArtist::DrawClipSpectrum(WaveTrack *track,
else
value = clip->mSpecPxCache->values[x * mid.height + yy];
if(centerLine)
// Draw center frequency line
rv = gv = bv = (mIsGrayscale ? MONOCHROME_LINE : COLORED_LINE);
else
GetColorGradient(value, selected, mIsGrayscale, &rv, &gv, &bv);
int px = ((mid.height - 1 - yy) * mid.width + x) * 3;
@ -2206,22 +2216,12 @@ void TrackArtist::DrawClipSpectrum(WaveTrack *track,
yy3=0;
float bin1 = float(yy3);
bool centerLine = false;
AColor::ColorGradientChoice selected =
AColor::ColorGradientUnselected;
// If we are in the time selected range, then we may use a differnt color set.
if (ssel0 <= w0 && w1 < ssel1)
{
if (selBinCenter >= 0 &&
bin0 <= selBinCenter &&
selBinCenter < bin1)
centerLine = true;
else if((selBinLo < 0 || selBinLo < bin1) &&
(selBinHi < 0 || selBinHi > bin0))
selected =
AColor::ColorGradientTimeAndFrequencySelected;
else
selected =
AColor::ColorGradientTimeSelected;
selected = ChooseColorSet( bin0, bin1, selBinLo, selBinCenter, selBinHi, x/DASH_LENGTH );
}
if(!usePxCache) {
@ -2270,10 +2270,6 @@ void TrackArtist::DrawClipSpectrum(WaveTrack *track,
value = clip->mSpecPxCache->values[x * mid.height + yy];
yy2 = yy2_base;
if(centerLine)
// Draw center frequency line
rv = gv = bv = (mIsGrayscale ? MONOCHROME_LINE : COLORED_LINE);
else
GetColorGradient(value, selected, mIsGrayscale, &rv, &gv, &bv);
#ifdef EXPERIMENTAL_FFT_Y_GRID