wxColor wxGradient::lerp(wxColor c1, wxColor c2, double value)
{
unsigned char R = (1.0 - value)*c1.Red() + value*c2.Red();
unsigned char G = (1.0 - value)*c1.Green() + value*c2.Green();
unsigned char B = (1.0 - value)*c1.Blue() + value*c2.Blue();
return wxColor(R,G,B);
}
void Overlay::bg_color_updated(const wxColor& bg)
{
if (0.299*bg.Red() + 0.587*bg.Green() + 0.114*bg.Blue() < 128)
color_.Set(192, 192, 192);
else
color_.Set(64, 64, 64);
}
// StepColour() it a utility function that simply darkens
// or lightens a color, based on the specified percentage
static wxColor StepColour(const wxColor& c, int percent)
{
int r = c.Red(), g = c.Green(), b = c.Blue();
return wxColour((unsigned char)wxMin((r*percent)/100,255),
(unsigned char)wxMin((g*percent)/100,255),
(unsigned char)wxMin((b*percent)/100,255));
}
wxBitmap ConvertTo24Bit( wxColor bgColor, wxBitmap front ) {
if( front.GetDepth() == 24 ) return front;
wxBitmap result( front.GetWidth(), front.GetHeight(), 24 );
front.UseAlpha();
wxImage im_front = front.ConvertToImage();
wxImage im_result = result.ConvertToImage();
unsigned char *presult = im_result.GetData();
unsigned char *pfront = im_front.GetData();
unsigned char *afront = NULL;
if( im_front.HasAlpha() )
afront = im_front.GetAlpha();
for( int i = 0; i < result.GetWidth(); i++ ) {
for( int j = 0; j < result.GetHeight(); j++ ) {
double alphaF = (double) ( *afront++ ) / 256.0;
unsigned char r = *pfront++ * alphaF + bgColor.Red() * ( 1.0 - alphaF );
*presult++ = r;
unsigned char g = *pfront++ * alphaF + bgColor.Green() * ( 1.0 - alphaF );
*presult++ = g;
unsigned char b = *pfront++ * alphaF + bgColor.Blue() * ( 1.0 - alphaF );
*presult++ = b;
}
}
result = wxBitmap( im_result );
return result;
}
static wxColor wxStepColour(const wxColor& c, int ialpha)
{
if (ialpha == 100)
return c;
double r = c.Red(), g = c.Green(), b = c.Blue();
double bg;
// ialpha is 0..200 where 0 is completely black
// and 200 is completely white and 100 is the same
// convert that to normal alpha 0.0 - 1.0
ialpha = wxMin(ialpha, 200);
ialpha = wxMax(ialpha, 0);
double alpha = ((double)(ialpha - 100.0))/100.0;
if (ialpha > 100)
{
// blend with white
bg = 255.0;
alpha = 1.0 - alpha; // 0 = transparent fg; 1 = opaque fg
}
else
{
// blend with black
bg = 0.0;
alpha = 1.0 + alpha; // 0 = transparent fg; 1 = opaque fg
}
r = wxBlendColour(r, bg, alpha);
g = wxBlendColour(g, bg, alpha);
b = wxBlendColour(b, bg, alpha);
return wxColour((unsigned char)r, (unsigned char)g, (unsigned char)b);
}
wxColor
TextColorFromBG(const wxColor& bg)
{
int gray = 77 * bg.Red() + 151 * bg.Green() + 28 * bg.Blue();
gray >>= 8;
gray = gray < 128 ? 255 : 0;
return wxColor(gray, gray, gray);
}
wxColor CodeEdit::GetInverse(const wxColor& color)
{
unsigned char r = color.Red();
unsigned char g = color.Green();
unsigned char b = color.Blue();
return wxColor( r ^ 0xFF, g ^ 0xFF, b ^ 0xFF );
}
wxImage zen::createImageFromText(const wxString& text, const wxFont& font, const wxColor& col)
{
//wxDC::DrawLabel() doesn't respect alpha channel => calculate alpha values manually:
if (text.empty())
return wxImage();
wxBitmap newBitmap(getTextExtent(text, font)); //seems we don't need to pass 24-bit depth here even for high-contrast color schemes
{
wxMemoryDC dc(newBitmap);
dc.SetBackground(*wxWHITE_BRUSH);
dc.Clear();
dc.SetTextForeground(*wxBLACK); //for use in calcAlphaForBlackWhiteImage
dc.SetTextBackground(*wxWHITE); //
dc.SetFont(font);
//assert(!contains(text, L"&")); //accelerator keys not supported here; see also getTextExtent()
wxString textFmt = replaceCpy(text, L"&", L"", false);
//for some reason wxDC::DrawText messes up "weak" bidi characters even when wxLayout_RightToLeft is set! (--> arrows in hebrew/arabic)
//=> use mark characters instead:
const wchar_t rtlMark = L'\u200F';
if (wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft)
textFmt = rtlMark + textFmt + rtlMark;
dc.DrawText(textFmt, wxPoint());
}
wxImage output(newBitmap.ConvertToImage());
output.SetAlpha();
//calculate alpha channel
calcAlphaForBlackWhiteImage(output);
//apply actual text color
unsigned char* dataPtr = output.GetData();
const int pixelCount = output.GetWidth() * output.GetHeight();
for (int i = 0; i < pixelCount; ++ i)
{
*dataPtr++ = col.Red();
*dataPtr++ = col.Green();
*dataPtr++ = col.Blue();
}
return output;
}
void MadHighlightingDialog::SetPanelBC(const wxColor &color)
{
if(color==wxNullColour)
{
WxStaticTextBCName->SetLabel(wxT("(Automatic)"));
WxPanelBC->SetBackgroundColour(WxListCtrlBC->GetItemBackgroundColour(0));
WxPanelBC->ClearBackground();
}
else
{
wxString cname=wxTheColourDatabase->FindName(color);
if(cname.IsEmpty())
{
cname.Printf(wxT("#%02X%02X%02X"), color.Red(), color.Green(), color.Blue());
}
WxStaticTextBCName->SetLabel(cname);
WxPanelBC->SetBackgroundColour(color);
WxPanelBC->ClearBackground();
}
}
PMSColor::PMSColor(wxColor col)
: blue{col.Blue()}, green{col.Green()}, red{col.Red()}, alpha{col.Alpha()}
{
}
String entityColorAsString(const wxColor& color, const Assets::ColorRange::Type colorRange) {
StringStream result;
if (colorRange == Assets::ColorRange::Byte) {
result << int(color.Red()) << " " << int(color.Green()) << " " << int(color.Blue());
} else if (colorRange == Assets::ColorRange::Float) {
result << float(color.Red()) / 255.0f << " " << float(color.Green()) / 255.0f << " "<< float(color.Blue()) / 255.0f;
}
return result.str();
}
wxColor CamArtProvider::LightenColour(const wxColor& c, INT32 amount)
{
INT32 r = 255-c.Red(), g = 255-c.Green(), b = 255-c.Blue();
return wxColour(255-(r*amount)/100, 255-(g*amount)/100, 255-(b*amount)/100);
}
wxColor CamArtProvider::DarkenColour(const wxColor& c, INT32 amount)
{
INT32 r = c.Red(), g = c.Green(), b = c.Blue();
return wxColour((r*amount)/100, (g*amount)/100, (b*amount)/100);
}
static wxColour TransparentColor(wxColor c)
{
return wxColor(c.Red(), c.Green(), c.Blue(), c.Alpha()*7/24);
}