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 ThumbColorLinearGradientTrue(int x, int y, int r, int alpha = 255)
{
if (DefaultThumbColor)
{
return(ThumbColorLinearGradientTrueDefault(x, y, r, alpha));
}
UInt32 shadowColor = 0xff000000 | 0xff000000 & (UInt32)ThumbColorTrue.ToArgb();
Color alphaColor = Color.FromArgb(alpha, ThumbColorTrue);
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 void DrawThumbWithoutBitmap()
{
int r = SliderRect.Height / 2;
int x = SliderRect.Left + r;
int x2 = SliderRect.Left + SliderRect.Width - r;
int y = SliderRect.Top + r;
if (Transforming)
{
int offset = 0;
int x3 = 0;
if (Checked)
{
offset = (int)(Progress * (-SliderRect.Width));
x3 = x2 + offset;
if (x3 < x)
{
x3 = x;
}
if (HasShadow)
{
CurrentRenderTarget.fillCircle(x3 + ShadowOffset, y + ShadowOffset, r + ShadowAdditionRadius, ShadowColor);
}
if (UseGradient)
{
using (LinearGradientBrush brush = ThumbColorLinearGradientTrue(x3, y, r + 1))
{
CurrentRenderTarget.fillCircle(x3, y, r, brush);
}
using (LinearGradientBrush brush = ThumbColorLinearGradient(x3, y, r + 1, (int)(Progress * 255)))
{
CurrentRenderTarget.fillCircle(x3, y, r, brush);
}
}
else
{
CurrentRenderTarget.fillCircle(x3, y, r, ThumbColorTrue.ToArgb());
CurrentRenderTarget.fillCircle(x3, y, r, Color.FromArgb((int)(Progress * 255), ThumbColor).ToArgb());
}
}
else
{
offset = (int)(Progress * SliderRect.Width);
x3 = x + offset;
if (x3 > x2)
{
x3 = x2;
}
if (HasShadow)
{
CurrentRenderTarget.fillCircle(x3 + ShadowOffset, y + ShadowOffset, r + ShadowAdditionRadius, ShadowColor);
}
if (UseGradient)
{
using (LinearGradientBrush brush = ThumbColorLinearGradient(x3, y, r + 1))
{
CurrentRenderTarget.fillCircle(x3, y, r, brush);
}
using (LinearGradientBrush brush = ThumbColorLinearGradientTrue(x3, y, r + 1, (int)(Progress * 255)))
{
CurrentRenderTarget.fillCircle(x3, y, r, brush);
}
}
else
{
CurrentRenderTarget.fillCircle(x3, y, r, ThumbColor.ToArgb());
CurrentRenderTarget.fillCircle(x3, y, r, Color.FromArgb((int)(Progress * 255), ThumbColorTrue).ToArgb());
}
}
}
else
{
if (!Checked)
{
if (HasShadow)
{
CurrentRenderTarget.fillCircle(x + ShadowOffset, y + ShadowOffset, r + ShadowAdditionRadius, ShadowColor);
}
if (UseGradient)
{
using (LinearGradientBrush brush = ThumbColorLinearGradient(x, y, r + 1))
{
CurrentRenderTarget.fillCircle(x, y, r, brush);
}
}
else
{
CurrentRenderTarget.fillCircle(x, y, r, ThumbColor.ToArgb());
}
}
else
{
if (HasShadow)
{
CurrentRenderTarget.fillCircle(x2 + ShadowOffset, y + ShadowOffset, r + ShadowAdditionRadius, ShadowColor);
}
if (UseGradient)
{
using (LinearGradientBrush brush = ThumbColorLinearGradientTrue(x2, y, r + 1))
{
CurrentRenderTarget.fillCircle(x2, y, r, brush);
}
}
else
{
CurrentRenderTarget.fillCircle(x2, y, r, ThumbColorTrue.ToArgb());
}
}
}
}
