private LinearGradientBrush RefreshTrueColorLinearGradient(uint alpha = 255, bool replace = true)
{
if (UseDefaultBackColor)
{
return(RefreshTrueColorLinearGradientDefault(alpha, replace));
}
LinearGradientBrush ret;
uint alphaMask = 0x01000000 * alpha;
SDLMMSharp.SDLMMControl.LinearGradientBrushBuilder br1 = new SDLMMSharp.SDLMMControl.LinearGradientBrushBuilder(new Point(0, SliderRect.Top), new Point(0, SliderRect.Bottom), TrueColor, TrueColor);
Color myTrueColor = Color.FromArgb((int)alpha, TrueColor);
UInt32 shadowColor = alphaMask | (0x888888 & (UInt32)TrueColor.ToArgb());
br1.AddPosition(0).AddColor(myTrueColor)
.AddPosition(0.40).AddColor(myTrueColor)
.AddPosition(1).AddColor(shadowColor);
ret = br1.Build();
if (replace)
{
if (_TrueColorLinearGradient != null)
{
_TrueColorLinearGradient.Dispose();
_TrueColorLinearGradient = null;
}
_TrueColorLinearGradient = ret;
}
return(ret);
}
private LinearGradientBrush ThumbColorLinearGradientTrueDefault(int x, int y, int r, int alpha = 255)
{
UInt32 shadowColor = 0xff000000 | 0xff000000 & (UInt32)ThumbColorTrue.ToArgb();
Color alphaColor = Color.FromArgb(alpha, ThumbColorTrue);
uint alphaMask = 0x01000000 * (uint)alpha;
SDLMMSharp.SDLMMControl.LinearGradientBrushBuilder br1 = new SDLMMSharp.SDLMMControl.LinearGradientBrushBuilder(new Point(x, y - r), new Point(x, y + r), alphaColor, alphaColor);
br1.AddPosition(0).AddColor(0xb3ffb3 | (alphaMask))
.AddPosition(0.40).AddColor(0x80ff80 | (alphaMask))
.AddPosition(1).AddColor(0x00bf00 | (alphaMask));
return(br1.Build());
}
private LinearGradientBrush ThumbColorLinearGradient(int x, int y, int r, int alpha = 255)
{
if (DefaultThumbColor)
{
return(ThumbColorLinearGradientDefault(x, y, r, alpha));
}
UInt32 shadowColor = 0xff000000 | 0xffcccccc & (UInt32)ThumbColor.ToArgb();
Color alphaColor = Color.FromArgb(alpha, ThumbColor);
SDLMMSharp.SDLMMControl.LinearGradientBrushBuilder br1 = new SDLMMSharp.SDLMMControl.LinearGradientBrushBuilder(new Point(x - r, y - r), new Point(x + r, y + r), alphaColor, alphaColor);
br1.AddPosition(0).AddColor(alphaColor)
.AddPosition(1).AddColor(shadowColor);
return(br1.Build());
}
private LinearGradientBrush RefreshFalseColorLinearGradientDefault(uint alpha = 255, bool replace = true)
{
LinearGradientBrush ret;
SDLMMSharp.SDLMMControl.LinearGradientBrushBuilder br1 = new SDLMMSharp.SDLMMControl.LinearGradientBrushBuilder(new Point(0, SliderRect.Top), new Point(0, SliderRect.Bottom), FalseColor, FalseColor);
uint alphaMask = 0x01000000 * alpha;
UInt32 shadowColor = 0xff000000 | 0xff888888 & (UInt32)FalseColor.ToArgb();
br1.AddPosition(0).AddColor(0x7c7c7c | alphaMask)
.AddPosition(0.40).AddColor(0xa0a0a0 | alphaMask)
.AddPosition(1).AddColor(0xa0a0a0 | alphaMask);
ret = br1.Build();
if (replace)
{
if (_FalseColorLinearGradient != null)
{
_FalseColorLinearGradient.Dispose();
_FalseColorLinearGradient = null;
}
_FalseColorLinearGradient = ret;
}
return(ret);
}
