/
HatchBrush.cs
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/
HatchBrush.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
namespace System.Drawing.Drawing2D;
public sealed unsafe class HatchBrush : Brush
{
public HatchBrush(HatchStyle hatchstyle, Color foreColor)
: this(hatchstyle, foreColor, Color.FromArgb(unchecked((int)0xff000000)))
{
}
public HatchBrush(HatchStyle hatchstyle, Color foreColor, Color backColor)
{
if (hatchstyle is < HatchStyle.Min or > HatchStyle.SolidDiamond)
{
throw new ArgumentException(SR.Format(SR.InvalidEnumArgument, nameof(hatchstyle), hatchstyle, nameof(HatchStyle)), nameof(hatchstyle));
}
GpHatch* nativeBrush;
PInvoke.GdipCreateHatchBrush((GdiPlus.HatchStyle)hatchstyle, (ARGB)foreColor, (ARGB)backColor, &nativeBrush).ThrowIfFailed();
SetNativeBrushInternal((GpBrush*)nativeBrush);
}
internal HatchBrush(GpHatch* nativeBrush)
{
Debug.Assert(nativeBrush is not null, "Initializing native brush with null.");
SetNativeBrushInternal((GpBrush*)nativeBrush);
}
public override object Clone()
{
GpBrush* clonedBrush;
PInvoke.GdipCloneBrush(NativeBrush, &clonedBrush).ThrowIfFailed();
GC.KeepAlive(this);
return new HatchBrush((GpHatch*)clonedBrush);
}
public HatchStyle HatchStyle
{
get
{
GdiPlus.HatchStyle hatchStyle;
PInvoke.GdipGetHatchStyle((GpHatch*)NativeBrush, &hatchStyle).ThrowIfFailed();
GC.KeepAlive(this);
return (HatchStyle)hatchStyle;
}
}
public Color ForegroundColor
{
get
{
ARGB foregroundArgb;
PInvoke.GdipGetHatchForegroundColor((GpHatch*)NativeBrush, (uint*)&foregroundArgb).ThrowIfFailed();
GC.KeepAlive(this);
return foregroundArgb;
}
}
public Color BackgroundColor
{
get
{
ARGB backgroundArgb;
PInvoke.GdipGetHatchBackgroundColor((GpHatch*)NativeBrush, (uint*)&backgroundArgb).ThrowIfFailed();
GC.KeepAlive(this);
return backgroundArgb;
}
}
}