/// <summary>
/// Creates a D2dLinearGradientBrush that contains the specified gradient stops,
/// extend mode, and gamma interpolation. It has no transform and has a base opacity of 1.0.</summary>
/// <param name="pt1">A System.Drawing.PointF structure that represents the starting point of the linear gradient</param>
/// <param name="pt2">A System.Drawing.PointF structure that represents the endpoint of the linear gradient</param>
/// <param name="gradientStops">An array of D2dGradientStop structures that describe the colors in the brush's gradient
/// and their locations along the gradient line</param>
/// <param name="extendMode">The behavior of the gradient outside the [0,1] normalized range</param>
/// <param name="gamma">The space in which color interpolation between the gradient stops is performed</param>
/// <returns>A new instance of D2dLinearGradientBrush</returns>
public static D2dLinearGradientBrush CreateLinearGradientBrush(
PointF pt1,
PointF pt2,
D2dGradientStop[] gradientStops,
D2dExtendMode extendMode,
D2dGamma gamma)
{
return(s_gfx.CreateLinearGradientBrush(pt1, pt2, gradientStops, extendMode, gamma));
}
internal D2dLinearGradientBrush(D2dGraphics owner, PointF pt1,
PointF pt2,
D2dGradientStop[] gradientStops,
D2dExtendMode extendMode,
D2dGamma gamma)
: base(owner)
{
m_start = pt1;
m_end = pt2;
m_gradientStops = new D2dGradientStop[gradientStops.Length];
Array.Copy(gradientStops, m_gradientStops, m_gradientStops.Length);
m_gamma = gamma;
m_extendMode = extendMode;
Create();//to-do: it's dangerous to call a virtual method in a constructor; derived class may not be properly initialized!
}
internal D2dLinearGradientBrush(D2dGraphics owner, PointF pt1,
PointF pt2,
D2dGradientStop[] gradientStops,
D2dExtendMode extendMode,
D2dGamma gamma)
: base(owner)
{
m_start = pt1;
m_end = pt2;
m_gradientStops = new D2dGradientStop[gradientStops.Length];
Array.Copy(gradientStops, m_gradientStops, m_gradientStops.Length);
m_gamma = gamma;
m_extendMode = extendMode;
Create();//to-do: it's dangerous to call a virtual method in a constructor; derived class may not be properly initialized!
}
/// <summary>
/// Creates a D2dLinearGradientBrush that contains the specified gradient stops,
/// extend mode, and gamma interpolation. has no transform, and has a base opacity of 1.0.</summary>
/// <param name="pt1">A System.Drawing.PointF structure that represents the starting point of the
/// linear gradient</param>
/// <param name="pt2">A System.Drawing.PointF structure that represents the endpoint of the linear gradient</param>
/// <param name="gradientStops">An array of D2dGradientStop structures that describe the colors in the brush's gradient
/// and their locations along the gradient line</param>
/// <param name="extendMode">The behavior of the gradient outside the [0,1] normalized range</param>
/// <param name="gamma">The space in which color interpolation between the gradient stops is performed</param>
/// <returns>A new instance of D2dLinearGradientBrush</returns>
public D2dLinearGradientBrush CreateLinearGradientBrush(
PointF pt1,
PointF pt2,
D2dGradientStop[] gradientStops,
D2dExtendMode extendMode,
D2dGamma gamma)
{
return new D2dLinearGradientBrush(this, pt1, pt2, gradientStops, extendMode, gamma);
}
