audacia
/
audacia
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
audacia/src/AColor.cpp

790 lines
23 KiB
C++
Raw Permalink Blame History

/**********************************************************************
Audacity: A Digital Audio Editor
AColor.cpp
Dominic Mazzoni
********************************************************************//**
\class AColor
\brief AColor Manages color brushes and pens
It is also a place to document colour usage policy in Audacity
*//********************************************************************/
#include "AColor.h"
#include "AColorResources.h"
#include <wx/window.h>
#include <wx/colour.h>
#include <wx/dc.h>
#include <wx/dcmemory.h>
#include <wx/graphics.h>
#include <wx/settings.h>
#include <wx/utils.h>
#include "AllThemeResources.h"
#include "Theme.h"
bool AColor::inited = false;
wxBrush AColor::lightBrush[2];
wxBrush AColor::mediumBrush[2];
wxBrush AColor::darkBrush[2];
wxPen AColor::lightPen[2];
wxPen AColor::mediumPen[2];
wxPen AColor::darkPen[2];
wxPen AColor::cursorPen;
wxBrush AColor::indicatorBrush[2];
wxPen AColor::indicatorPen[2];
wxPen AColor::playRegionPen[2];
wxBrush AColor::playRegionBrush[2];
wxBrush AColor::muteBrush[2];
wxBrush AColor::soloBrush;
wxPen AColor::clippingPen;
wxBrush AColor::envelopeBrush;
wxPen AColor::envelopePen;
wxPen AColor::WideEnvelopePen;
wxBrush AColor::labelTextNormalBrush;
wxBrush AColor::labelTextEditBrush;
wxBrush AColor::labelUnselectedBrush;
wxBrush AColor::labelSelectedBrush;
wxBrush AColor::labelSyncLockSelBrush;
wxPen AColor::labelUnselectedPen;
wxPen AColor::labelSelectedPen;
wxPen AColor::labelSyncLockSelPen;
wxPen AColor::labelSurroundPen;
wxPen AColor::trackFocusPens[3];
wxPen AColor::snapGuidePen;
wxPen AColor::tooltipPen;
wxBrush AColor::tooltipBrush;
// The spare pen and brush possibly help us cut down on the
// number of pens and brushes we need.
wxPen AColor::sparePen;
wxBrush AColor::spareBrush;
wxPen AColor::uglyPen;
wxBrush AColor::uglyBrush;
//
// Draw an upward or downward pointing arrow.
//
void AColor::Arrow(wxDC & dc, wxCoord x, wxCoord y, int width, bool down)
{
if (width & 0x01) {
width--;
}
wxPoint pt[3];
int half = width / 2;
if (down) {
pt[0].x = 0; pt[0].y = 0;
pt[1].x = width; pt[1].y = 0;
pt[2].x = half; pt[2].y = half;
}
else {
pt[0].x = 0; pt[0].y = half;
pt[1].x = half; pt[1].y = 0;
pt[2].x = width; pt[2].y = half;
}
dc.DrawPolygon(3, pt, x, y);
}
//
// Draw a line, inclusive of endpoints,
// compensating for differences in wxWidgets versions across platforms
//
void AColor::Line(wxDC & dc, wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
{
const wxPoint points[] { { x1, y1 }, { x2, y2 } };
Lines( dc, 2, points );
}
// Draw lines, INCLUSIVE of all endpoints
void AColor::Lines(wxDC &dc, size_t nPoints, const wxPoint points[])
{
if ( nPoints <= 1 ) {
if (nPoints == 1)
dc.DrawPoint( points[0] );
return;
}
for (size_t ii = 0; ii < nPoints - 1; ++ii) {
const auto &p1 = points[ii];
const auto &p2 = points[ii + 1];
// As of 2.8.9 (possibly earlier), wxDC::DrawLine() on the Mac draws the
// last point since it is now based on the NEW wxGraphicsContext system.
// Make the other platforms do the same thing since the other platforms
// "may" follow they get wxGraphicsContext going.
// PRL: as of 3.1.1, I still observe that on Mac, the last point is
// included, contrary to what documentation says. Also that on Windows,
// sometimes it is the first point that is excluded.
#if defined(__WXMAC__) || defined(__WXGTK3__)
dc.DrawLine(p1, p2);
#else
dc.DrawPoint(p1);
if ( p1 != p2 ) {
dc.DrawLine(p1, p2);
}
#endif
}
#if defined(__WXMAC__) || defined(__WXGTK3__)
;
#else
dc.DrawPoint( points[ nPoints - 1 ] );
#endif
}
//
// Draws a focus rectangle (Taken directly from wxWidgets source)
//
void AColor::DrawFocus(wxDC & dc, wxRect & rect)
{
// draw the pixels manually: note that to behave in the same manner as
// DrawRect(), we must exclude the bottom and right borders from the
// rectangle
wxCoord x1 = rect.GetLeft(),
y1 = rect.GetTop(),
x2 = rect.GetRight(),
y2 = rect.GetBottom();
// -1 for brush, so it just sets the pen colour, and does not change the brush.
UseThemeColour( &dc, -1, clrTrackPanelText );
wxCoord z;
for ( z = x1 + 1; z < x2; z += 2 )
dc.DrawPoint(z, y1);
wxCoord shift = z == x2 ? 0 : 1;
for ( z = y1 + shift; z < y2; z += 2 )
dc.DrawPoint(x2, z);
shift = z == y2 ? 0 : 1;
for ( z = x2 - shift; z > x1; z -= 2 )
dc.DrawPoint(z, y2);
shift = z == x1 ? 0 : 1;
for ( z = y2 - shift; z > y1; z -= 2 )
dc.DrawPoint(x1, z);
}
void AColor::Bevel(wxDC & dc, bool up, const wxRect & r)
{
if (up)
AColor::Light(&dc, false);
else
AColor::Dark(&dc, false);
AColor::Line(dc, r.x, r.y, r.x + r.width, r.y);
AColor::Line(dc, r.x, r.y, r.x, r.y + r.height);
if (!up)
AColor::Light(&dc, false);
else
AColor::Dark(&dc, false);
AColor::Line(dc, r.x + r.width, r.y, r.x + r.width, r.y + r.height);
AColor::Line(dc, r.x, r.y + r.height, r.x + r.width, r.y + r.height);
}
void AColor::Bevel2
(wxDC & dc, bool up, const wxRect & r, bool bSel, bool bHighlight)
{
int index = 0;
// There are eight button states in the TCP.
// A theme might not differentiate between them all. That's up to
// the theme designer.
// Button highlighted (i.e. hovered over) or not.
// Track selected or not
// Button up or down.
// Highlight in most themes is lighter than not highlighted.
if ( bHighlight && bSel)
index = up ? bmpHiliteUpButtonExpandSel : bmpHiliteButtonExpandSel;
else if ( bHighlight )
index = up ? bmpHiliteUpButtonExpand : bmpHiliteButtonExpand;
else if( bSel )
index = up ? bmpUpButtonExpandSel : bmpDownButtonExpandSel;
else
index = up ? bmpUpButtonExpand : bmpDownButtonExpand;
wxBitmap & Bmp = theTheme.Bitmap( index );
wxMemoryDC memDC;
memDC.SelectObject(Bmp);
int h = wxMin( r.height, Bmp.GetHeight() );
dc.Blit( r.x,r.y,r.width/2, h, &memDC, 0, 0, wxCOPY, true );
int r2 = r.width - r.width/2;
dc.Blit( r.x+r.width/2,r.y,r2, h, &memDC,
Bmp.GetWidth() - r2, 0, wxCOPY, true );
}
wxColour AColor::Blend( const wxColour & c1, const wxColour & c2 )
{
wxColour c3(
(c1.Red() + c2.Red())/2,
(c1.Green() + c2.Green())/2,
(c1.Blue() + c2.Blue())/2);
return c3;
}
void AColor::BevelTrackInfo(wxDC & dc, bool up, const wxRect & r, bool highlight)
{
#ifndef EXPERIMENTAL_THEMING
Bevel( dc, up, r );
#else
// Note that the actually drawn rectangle extends one pixel right of and
// below the given
wxColour col;
col = Blend( theTheme.Colour( clrTrackInfo ), up ? wxColour( 255,255,255):wxColour(0,0,0));
wxPen pen( highlight ? uglyPen : col );
dc.SetPen( pen );
dc.DrawLine(r.x, r.y, r.x + r.width, r.y);
dc.DrawLine(r.x, r.y, r.x, r.y + r.height);
col = Blend( theTheme.Colour( clrTrackInfo ), up ? wxColour(0,0,0): wxColour(255,255,255));
pen.SetColour( col );
dc.SetPen( highlight ? uglyPen : pen );
dc.DrawLine(r.x + r.width, r.y, r.x + r.width, r.y + r.height);
dc.DrawLine(r.x, r.y + r.height, r.x + r.width, r.y + r.height);
#endif
}
// Set colour of and select brush and pen.
// Use -1 to omit brush or pen.
// If pen omitted, then the same colour as the brush will be used.
// alpha for the brush is normally 255, but if set will make a difference
// on mac (only) currently.
void AColor::UseThemeColour( wxDC * dc, int iBrush, int iPen, int alpha )
{
if (!inited)
Init();
// do nothing if no colours set.
if( (iBrush == -1) && ( iPen ==-1))
return;
wxColour col = wxColour(0,0,0);
if( iBrush !=-1 ){
col = theTheme.Colour( iBrush );
col.Set( col.Red(), col.Green(), col.Blue(), alpha);
spareBrush.SetColour( col );
dc->SetBrush( spareBrush );
}
if( iPen != -1)
col = theTheme.Colour( iPen );
sparePen.SetColour( col );
dc->SetPen( sparePen );
}
void AColor::UseThemeColour( wxGraphicsContext * gc, int iBrush, int iPen, int alpha )
{
if (!inited)
Init();
// do nothing if no colours set.
if( (iBrush == -1) && ( iPen ==-1))
return;
wxColour col = wxColour(0,0,0);
if( iBrush !=-1 ){
col = theTheme.Colour( iBrush );
col.Set( col.Red(), col.Green(), col.Blue(), alpha);
spareBrush.SetColour( col );
gc->SetBrush( spareBrush );
}
if( iPen != -1)
col = theTheme.Colour( iPen );
sparePen.SetColour( col );
gc->SetPen( sparePen );
}
void AColor::Light(wxDC * dc, bool selected, bool highlight)
{
if (!inited)
Init();
int index = (int) selected;
auto &brush = highlight ? AColor::uglyBrush : lightBrush[index];
dc->SetBrush( brush );
auto &pen = highlight ? AColor::uglyPen : lightPen[index];
dc->SetPen( pen );
}
void AColor::Medium(wxDC * dc, bool selected)
{
if (!inited)
Init();
int index = (int) selected;
dc->SetBrush(mediumBrush[index]);
dc->SetPen(mediumPen[index]);
}
void AColor::MediumTrackInfo(wxDC * dc, bool selected)
{
#ifdef EXPERIMENTAL_THEMING
UseThemeColour( dc, selected ? clrTrackInfoSelected : clrTrackInfo );
#else
Medium( dc, selected );
#endif
}
void AColor::Dark(wxDC * dc, bool selected, bool highlight)
{
if (!inited)
Init();
int index = (int) selected;
auto &brush = highlight ? AColor::uglyBrush : darkBrush[index];
dc->SetBrush( brush );
auto &pen = highlight ? AColor::uglyPen : darkPen[index];
dc->SetPen( pen );
}
void AColor::TrackPanelBackground(wxDC * dc, bool selected)
{
#ifdef EXPERIMENTAL_THEMING
UseThemeColour( dc, selected ? clrMediumSelected : clrTrackBackground );
#else
Dark( dc, selected );
#endif
}
void AColor::CursorColor(wxDC * dc)
{
if (!inited)
Init();
dc->SetLogicalFunction(wxCOPY);
dc->SetPen(cursorPen);
}
void AColor::IndicatorColor(wxDC * dc, bool bIsNotRecording)
{
if (!inited)
Init();
int index = (int) bIsNotRecording;
dc->SetPen(indicatorPen[index]);
dc->SetBrush(indicatorBrush[index]);
}
void AColor::PlayRegionColor(wxDC * dc, bool locked)
{
if (!inited)
Init();
dc->SetPen(playRegionPen[(int)locked]);
dc->SetBrush(playRegionBrush[(int)locked]);
}
void AColor::TrackFocusPen(wxDC * dc, int level)
{
if (!inited)
Init();
dc->SetPen(trackFocusPens[level]);
}
void AColor::SnapGuidePen(wxDC * dc)
{
if (!inited)
Init();
dc->SetPen(snapGuidePen);
}
void AColor::Mute(wxDC * dc, bool on, bool selected, bool soloing)
{
if (!inited)
Init();
int index = (int) selected;
if (on) {
dc->SetPen(*wxBLACK_PEN);
dc->SetBrush(muteBrush[(int) soloing]);
}
else {
dc->SetPen(*wxTRANSPARENT_PEN);
dc->SetBrush(mediumBrush[index]);
}
}
void AColor::Solo(wxDC * dc, bool on, bool selected)
{
if (!inited)
Init();
int index = (int) selected;
if (on) {
dc->SetPen(*wxBLACK_PEN);
dc->SetBrush(soloBrush);
}
else {
dc->SetPen(*wxTRANSPARENT_PEN);
dc->SetBrush(mediumBrush[index]);
}
}
bool AColor::gradient_inited = 0;
void AColor::ReInit()
{
inited=false;
Init();
gradient_inited=0;
PreComputeGradient();
}
wxColour InvertOfColour( const wxColour & c )
{
return wxColour( 255-c.Red(), 255-c.Green(), 255-c.Blue() );
}
// Fix up the cursor colour, if it is 'unacceptable'.
// Unacceptable if it is too close to the background colour.
wxColour CursorColour( )
{
wxColour cCursor = theTheme.Colour( clrCursorPen );
wxColour cBack = theTheme.Colour( clrMedium );
int d = theTheme.ColourDistance( cCursor, cBack );
// Pen colour is fine, if there is plenty of contrast.
if( d > 200 )
return clrCursorPen;
// otherwise return same colour as a selection.
return theTheme.Colour( clrSelected );
}
void AColor::Init()
{
if (inited)
return;
wxColour light = theTheme.Colour( clrLight );
// wxSystemSettings::GetColour(wxSYS_COLOUR_3DHIGHLIGHT);
wxColour med = theTheme.Colour( clrMedium );
// wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
wxColour dark = theTheme.Colour( clrDark );
// wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW);
wxColour lightSelected = theTheme.Colour( clrLightSelected );
wxColour medSelected = theTheme.Colour( clrMediumSelected );
wxColour darkSelected = theTheme.Colour( clrDarkSelected );
clippingPen.SetColour(0xCC, 0x11, 0x00);
theTheme.SetPenColour( envelopePen, clrEnvelope );
theTheme.SetPenColour( WideEnvelopePen, clrEnvelope );
theTheme.SetBrushColour( envelopeBrush, clrEnvelope );
WideEnvelopePen.SetWidth( 3 );
theTheme.SetBrushColour( labelTextNormalBrush, clrLabelTextNormalBrush );
theTheme.SetBrushColour( labelTextEditBrush, clrLabelTextEditBrush );
theTheme.SetBrushColour( labelUnselectedBrush, clrLabelUnselectedBrush );
theTheme.SetBrushColour( labelSelectedBrush, clrLabelSelectedBrush );
theTheme.SetBrushColour( labelSyncLockSelBrush, clrSyncLockSel );
theTheme.SetPenColour( labelUnselectedPen, clrLabelUnselectedPen );
theTheme.SetPenColour( labelSelectedPen, clrLabelSelectedPen );
theTheme.SetPenColour( labelSyncLockSelPen, clrSyncLockSel );
theTheme.SetPenColour( labelSurroundPen, clrLabelSurroundPen );
// These colors were modified to avoid using reserved colors red and green
// for the buttons.
theTheme.SetBrushColour( muteBrush[0], clrMuteButtonActive);
theTheme.SetBrushColour( muteBrush[1], clrMuteButtonVetoed);
theTheme.SetBrushColour( soloBrush, clrMuteButtonActive);
cursorPen.SetColour( CursorColour() );
theTheme.SetPenColour( indicatorPen[0], clrRecordingPen);
theTheme.SetPenColour( indicatorPen[1], clrPlaybackPen);
theTheme.SetBrushColour( indicatorBrush[0], clrRecordingBrush);
theTheme.SetBrushColour( indicatorBrush[1], clrPlaybackBrush);
theTheme.SetBrushColour( playRegionBrush[0],clrRulerRecordingBrush);
theTheme.SetPenColour( playRegionPen[0], clrRulerRecordingPen);
theTheme.SetBrushColour( playRegionBrush[1],clrRulerPlaybackBrush);
theTheme.SetPenColour( playRegionPen[1], clrRulerPlaybackPen);
//Determine tooltip color
tooltipPen.SetColour( wxSystemSettingsNative::GetColour(wxSYS_COLOUR_INFOTEXT) );
tooltipBrush.SetColour( wxSystemSettingsNative::GetColour(wxSYS_COLOUR_INFOBK) );
uglyPen.SetColour( wxColour{ 0, 255, 0 } ); // saturated green
uglyBrush.SetColour( wxColour{ 255, 0, 255 } ); // saturated magenta
// A tiny gradient of yellow surrounding the current focused track
theTheme.SetPenColour( trackFocusPens[0], clrTrackFocus0);
theTheme.SetPenColour( trackFocusPens[1], clrTrackFocus1);
theTheme.SetPenColour( trackFocusPens[2], clrTrackFocus2);
// A vertical line indicating that the selection or sliding has
// been snapped to the nearest boundary.
theTheme.SetPenColour( snapGuidePen, clrSnapGuide);
// unselected
lightBrush[0].SetColour(light);
mediumBrush[0].SetColour(med);
darkBrush[0].SetColour(dark);
lightPen[0].SetColour(light);
mediumPen[0].SetColour(med);
darkPen[0].SetColour(dark);
// selected
lightBrush[1].SetColour(lightSelected);
mediumBrush[1].SetColour(medSelected);
darkBrush[1].SetColour(darkSelected);
lightPen[1].SetColour(lightSelected);
mediumPen[1].SetColour(medSelected);
darkPen[1].SetColour(darkSelected);
inited = true;
}
// These colours are chosen so that black text shows up OK on them.
const int AColor_midicolors[16][3] = {
{255, 102, 102}, // 1=salmon
{204, 0, 0}, // 2=red
{255, 117, 23}, // 3=orange
{255, 255, 0}, // 4=yellow
{0, 204, 0}, // 5=green
{0, 204, 204}, // 6=turquoise
{125, 125, 255}, // 7=blue
{153, 0, 255}, // 8=blue-violet
{140, 97, 54}, // 9=brown
{120, 120, 120}, // 10=gray (drums)
{255, 175, 40}, // 11=lt orange
{102, 255, 102}, // 12=lt green
{153, 255, 255}, // 13=lt turquoise
{190, 190, 255}, // 14=lt blue
{204, 102, 255}, // 15=lt blue-violet
{255, 51, 204} // 16=lt red-violet
};
void AColor::MIDIChannel(wxDC * dc, int channel /* 1 - 16 */ )
{
if (channel >= 1 && channel <= 16) {
const int *colors = AColor_midicolors[channel - 1];
dc->SetPen(wxPen(wxColour(colors[0],
colors[1], colors[2]), 1, wxPENSTYLE_SOLID));
dc->SetBrush(wxBrush(wxColour(colors[0],
colors[1], colors[2]), wxBRUSHSTYLE_SOLID));
} else {
dc->SetPen(wxPen(wxColour(153, 153, 153), 1, wxPENSTYLE_SOLID));
dc->SetBrush(wxBrush(wxColour(153, 153, 153), wxBRUSHSTYLE_SOLID));
}
}
void AColor::LightMIDIChannel(wxDC * dc, int channel /* 1 - 16 */ )
{
if (channel >= 1 && channel <= 16) {
const int *colors = AColor_midicolors[channel - 1];
dc->SetPen(wxPen(wxColour(127 + colors[0] / 2,
127 + colors[1] / 2,
127 + colors[2] / 2), 1, wxPENSTYLE_SOLID));
dc->SetBrush(wxBrush(wxColour(127 + colors[0] / 2,
127 + colors[1] / 2,
127 + colors[2] / 2), wxBRUSHSTYLE_SOLID));
} else {
dc->SetPen(wxPen(wxColour(204, 204, 204), 1, wxPENSTYLE_SOLID));
dc->SetBrush(wxBrush(wxColour(204, 204, 204), wxBRUSHSTYLE_SOLID));
}
}
void AColor::DarkMIDIChannel(wxDC * dc, int channel /* 1 - 16 */ )
{
if (channel >= 1 && channel <= 16) {
const int *colors = AColor_midicolors[channel - 1];
dc->SetPen(wxPen(wxColour(colors[0] / 2,
colors[1] / 2,
colors[2] / 2), 1, wxPENSTYLE_SOLID));
dc->SetBrush(wxBrush(wxColour(colors[0] / 2,
colors[1] / 2,
colors[2] / 2), wxBRUSHSTYLE_SOLID));
} else {
dc->SetPen(wxPen(wxColour(102, 102, 102), 1, wxPENSTYLE_SOLID));
dc->SetBrush(wxBrush(wxColour(102, 102, 102), wxBRUSHSTYLE_SOLID));
}
}
unsigned char AColor::gradient_pre[ColorGradientTotal][colorSchemes][gradientSteps][3];
void AColor::PreComputeGradient() {
if (gradient_inited) return;
gradient_inited = 1;
// Keep in correspondence with enum SpectrogramSettings::ColorScheme
// colorScheme 0: Color (New)
std::copy_n(&specColormap[0][0], gradientSteps * 3, &gradient_pre[ColorGradientUnselected][0][0][0]);
std::copy_n(&selColormap[0][0], gradientSteps * 3, &gradient_pre[ColorGradientTimeSelected][0][0][0]);
std::copy_n(&freqSelColormap[0][0], gradientSteps * 3, &gradient_pre[ColorGradientTimeAndFrequencySelected][0][0][0]);
std::fill_n(&gradient_pre[ColorGradientEdge][0][0][0], gradientSteps * 3, 0);
for (int selected = 0; selected < ColorGradientTotal; selected++) {
// Get color scheme from Theme
const int gsteps = 4;
float gradient[gsteps + 1][3];
theTheme.Colour( clrSpectro1 ) = theTheme.Colour( clrUnselected );
theTheme.Colour( clrSpectro1Sel ) = theTheme.Colour( clrSelected );
int clrFirst = (selected == ColorGradientUnselected ) ? clrSpectro1 : clrSpectro1Sel;
for(int j=0;j<(gsteps+1);j++){
wxColour c = theTheme.Colour( clrFirst+j );
gradient[ j] [0] = c.Red()/255.0;
gradient[ j] [1] = c.Green()/255.0;
gradient[ j] [2] = c.Blue()/255.0;
}
// colorScheme 1: Color (from theme)
for (int i = 0; i<gradientSteps; i++) {
float r, g, b;
float value = float(i)/gradientSteps;
int left = (int)(value * gsteps);
int right = (left == gsteps ? gsteps : left + 1);
float rweight = (value * gsteps) - left;
float lweight = 1.0 - rweight;
r = (gradient[left][0] * lweight) + (gradient[right][0] * rweight);
g = (gradient[left][1] * lweight) + (gradient[right][1] * rweight);
b = (gradient[left][2] * lweight) + (gradient[right][2] * rweight);
switch (selected) {
case ColorGradientUnselected:
// not dimmed
break;
case ColorGradientTimeAndFrequencySelected:
float temp;
temp = r;
r = g;
g = b;
b = temp;
break;
case ColorGradientTimeSelected:
// partly dimmed
r *= 0.75f;
g *= 0.75f;
b *= 0.75f;
break;
// For now edge colour is just black (or white if grey-scale)
// Later we might invert or something else funky.
case ColorGradientEdge:
// fully dimmed
r = 0;
g = 0;
b = 0;
break;
}
gradient_pre[selected][1][i][0] = (unsigned char) (255 * r);
gradient_pre[selected][1][i][1] = (unsigned char) (255 * g);
gradient_pre[selected][1][i][2] = (unsigned char) (255 * b);
}
// colorScheme 2: Grayscale
for (int i = 0; i < gradientSteps; i++) {
float r, g, b;
float value = float(i) / gradientSteps;
r = g = b = value;
switch (selected) {
case ColorGradientUnselected:
// not dimmed
break;
case ColorGradientTimeAndFrequencySelected:
// else fall through to SAME grayscale colour as normal selection.
// The white lines show it up clearly enough.
case ColorGradientTimeSelected:
// partly dimmed
r = r * 0.75f + 0.25f;
g = g * 0.75f + 0.25f;
b = b * 0.75f + 0.25f;
break;
case ColorGradientEdge:
r = 1.0f;
g = 1.0f;
b = 1.0f;
break;
}
gradient_pre[selected][2][i][0] = (unsigned char)(255 * r);
gradient_pre[selected][2][i][1] = (unsigned char)(255 * g);
gradient_pre[selected][2][i][2] = (unsigned char)(255 * b);
}
// colorScheme 3: Inv. Grayscale (=Old grayscale)
for (int i = 0; i<gradientSteps; i++) {
float r, g, b;
float value = float(i)/gradientSteps;
r = g = b = 0.84 - 0.84 * value;
switch (selected) {
case ColorGradientUnselected:
// not dimmed
break;
case ColorGradientTimeAndFrequencySelected:
// else fall through to SAME grayscale colour as normal selection.
// The white lines show it up clearly enough.
case ColorGradientTimeSelected:
// partly dimmed
r *= 0.75f;
g *= 0.75f;
b *= 0.75f;
break;
// For now edge colour is just black (or white if grey-scale)
// Later we might invert or something else funky.
case ColorGradientEdge:
// fully dimmed
r = 1.0f;
g = 1.0f;
b = 1.0f;
break;
}
gradient_pre[selected][3][i][0] = (unsigned char) (255 * r);
gradient_pre[selected][3][i][1] = (unsigned char) (255 * g);
gradient_pre[selected][3][i][2] = (unsigned char) (255 * b);
}
}
}
Reference in New Issue View Git Blame Copy Permalink