/// <summary>
/// Initializes a new instance of the <see cref="DirectXGraphics" /> class.
/// </summary>
/// <param name="renderTarget">The render target.</param>
/// <param name="resourceManager">The initial resource manager.</param>
/// <param name="fillStyle">The initial fill style.</param>
/// <param name="lineStyle">The initial line style.</param>
/// <param name="lineWidth">Width of the line.</param>
/// <exception cref="System.ArgumentNullException">
/// </exception>
public DirectXGraphics(
[NotNull] RenderTarget renderTarget,
[NotNull] IResourceManager resourceManager,
[NotNull] IStyle fillStyle,
[NotNull] SolidColourStyle lineStyle,
float lineWidth)
{
if (renderTarget == null)
{
throw new ArgumentNullException(nameof(renderTarget));
}
if (resourceManager == null)
{
throw new ArgumentNullException(nameof(resourceManager));
}
if (fillStyle == null)
{
throw new ArgumentNullException(nameof(fillStyle));
}
if (lineStyle == null)
{
throw new ArgumentNullException(nameof(lineStyle));
}
_renderTarget = renderTarget;
ResourceManager = resourceManager;
FillStyle = fillStyle;
LineStyle = lineStyle;
LineWidth = lineWidth;
}
/// <summary>
/// Initializes a new instance of the <see cref="State"/> class.
/// </summary>
/// <param name="graphics">The graphics.</param>
public State([NotNull] DirectXGraphics graphics)
{
Debug.Assert(graphics != null, "graphics != null");
FillStyle = graphics.FillStyle;
LineStyle = graphics.LineStyle;
LineWidth = graphics._lineWidth;
ResourceManager = graphics._resourceManager;
Transform = graphics.Transform;
}
/// <summary>
/// Handles the DoubleClick event of the _previewPnl control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
private void _previewPnl_DoubleClick(object sender, EventArgs e)
{
SolidColourStyle style = Style as SolidColourStyle;
if (style != null)
{
_colourDialog.Color = Color.FromArgb(style.Colour.ToArgb());
}
if (_colourDialog.ShowDialog(FindForm()) == DialogResult.OK)
{
Color col = _colourDialog.Color;
Style = new SolidColourStyle(col.R, col.G, col.B, col.A);
}
}
/// <summary>
/// Saves the current state of the graphics, sets the state using the given action,
/// and reutrns an <see cref="IDisposable" /> that can can be disposed to restore the saved state.
/// </summary>
/// <param name="graphics">The graphics.</param>
/// <param name="fillStyle">The fill style, or <see langword="null" /> to leave unchanged.</param>
/// <param name="lineStyle">The line style, or <see langword="null" /> to leave unchanged.</param>
/// <param name="lineWidth">The line width, or <see langword="null" /> to leave unchanged.</param>
/// <param name="transform">The transform, or <see langword="null" /> to leave unchanged.</param>
/// <param name="resourceManager">The resource manager, or <see langword="null" /> to leave unchanged.</param>
/// <param name="setState">An action which can be used to change any values that are needed.</param>
/// <returns>
/// An <see cref="IDisposable" /> that can can be disposed to restore the saved state.
/// </returns>
public static IDisposable TempState(
[NotNull] this IGraphics graphics,
[CanBeNull] IStyle fillStyle = null,
[CanBeNull] SolidColourStyle lineStyle = null,
[CanBeNull] float?lineWidth = null,
[CanBeNull] Matrix3x2?transform = null,
[CanBeNull] IResourceManager resourceManager = null,
[CanBeNull] Action <IGraphics> setState = null)
{
if (graphics == null)
{
throw new ArgumentNullException(nameof(graphics));
}
graphics.SaveState();
try
{
if (fillStyle != null)
{
graphics.FillStyle = fillStyle;
}
if (lineStyle != null)
{
graphics.LineStyle = lineStyle;
}
if (lineWidth != null)
{
graphics.LineWidth = lineWidth.Value;
}
if (transform != null)
{
graphics.Transform = transform.Value;
}
if (resourceManager != null)
{
graphics.ResourceManager = resourceManager;
}
setState?.Invoke(graphics);
return(new TempStateRestorer(graphics));
}
catch
{
graphics.RestoreState();
throw;
}
}
private Resource <Brush> CreateBrush([NotNull] IStyle style, bool temp)
{
lock (_lock)
{
SolidColourStyle solidColour = style as SolidColourStyle;
if (solidColour != null)
{
return(new SolidBrush(solidColour.Colour.ToColor()));
}
RandomColourStyle randomColour = style as RandomColourStyle;
if (randomColour != null)
{
return(new SolidBrush(randomColour.PositionColour.ToColor()));
}
LinearGradientStyle linearGradient = style as LinearGradientStyle;
if (linearGradient != null)
{
ColorBlend blend = new ColorBlend(linearGradient.GradientStops.Count);
Debug.Assert(blend.Colors != null, "blend.Colors != null");
Debug.Assert(blend.Positions != null, "blend.Positions != null");
for (int i = 0; i < linearGradient.GradientStops.Count; i++)
{
GradientStop stop = linearGradient.GradientStops[i];
blend.Colors[i] = stop.Colour.ToColor();
blend.Positions[i] = stop.Position;
}
return(new LinearGradientBrush(
linearGradient.Start.ToPointF(),
linearGradient.End.ToPointF(),
Color.Black,
Color.White)
{
InterpolationColors = blend,
WrapMode = WrapMode.Clamp
});
}
RadialGradientStyle radialGradient = style as RadialGradientStyle;
if (radialGradient != null)
{
ColorBlend blend = new ColorBlend(radialGradient.GradientStops.Count);
Debug.Assert(blend.Colors != null, "blend.Colors != null");
Debug.Assert(blend.Positions != null, "blend.Positions != null");
for (int i = 0; i < radialGradient.GradientStops.Count; i++)
{
GradientStop stop = radialGradient.GradientStops[i];
blend.Colors[i] = stop.Colour.ToColor();
blend.Positions[i] = stop.Position;
}
GraphicsPath path = new GraphicsPath();
path.AddEllipse(-1, -1, 1, 1);
return(new Resource <Brush>(
new PathGradientBrush(path)
{
WrapMode = WrapMode.Clamp,
Transform = radialGradient.GradientTransform.ToMatrix(),
InterpolationColors = blend,
CenterPoint = radialGradient.UnitOriginOffset.ToPointF()
},
path));
}
ImageStyle image = style as ImageStyle;
if (image != null)
{
Bitmap bitmap = temp ? Get(image.Image) : Add(image.Image);
return(new TextureBrush(bitmap, WrapMode.Clamp)
{
Transform = image.ImageTransform.ToMatrix()
});
}
throw new NotSupportedException();
}
}
private Resource <Brush> CreateBrush([NotNull] IStyle style, bool temp)
{
lock (_lock)
{
SolidColourStyle solidColour = style as SolidColourStyle;
if (solidColour != null)
{
return(new SolidColorBrush(_renderTarget, solidColour.Colour.ToRawColor4()));
}
RandomColourStyle randomColour = style as RandomColourStyle;
if (randomColour != null)
{
return(new SolidColorBrush(_renderTarget, randomColour.PositionColour.ToRawColor4()));
}
LinearGradientStyle linearGradient = style as LinearGradientStyle;
if (linearGradient != null)
{
GradientStopCollection gradientStops = new GradientStopCollection(
_renderTarget,
linearGradient.GradientStops.Select(DirectXExtensions.ToGradientStop).ToArray(),
Gamma.Linear);
return(new Resource <Brush>(
new LinearGradientBrush(
_renderTarget,
new LinearGradientBrushProperties
{
StartPoint = linearGradient.Start.ToRawVector2(),
EndPoint = linearGradient.End.ToRawVector2()
},
gradientStops),
gradientStops));
}
RadialGradientStyle radialGradient = style as RadialGradientStyle;
if (radialGradient != null)
{
GradientStopCollection gradientStops = new GradientStopCollection(
_renderTarget,
radialGradient.GradientStops.Select(DirectXExtensions.ToGradientStop).ToArray(),
Gamma.Linear);
return(new Resource <Brush>(
new RadialGradientBrush(
_renderTarget,
new RadialGradientBrushProperties
{
GradientOriginOffset = radialGradient.UnitOriginOffset.ToRawVector2(),
RadiusX = 1,
RadiusY = 1
},
new BrushProperties
{
Opacity = 1,
Transform = radialGradient.GradientTransform.ToRawMatrix3x2()
},
gradientStops),
gradientStops));
}
ImageStyle image = style as ImageStyle;
if (image != null)
{
Bitmap bitmap = temp ? Get(image.Image) : Add(image.Image);
return(new BitmapBrush(
_renderTarget,
bitmap,
new BitmapBrushProperties
{
// TODO set from style
ExtendModeX = ExtendMode.Clamp,
ExtendModeY = ExtendMode.Clamp,
InterpolationMode = BitmapInterpolationMode.Linear
},
new BrushProperties
{
Transform = image.ImageTransform.ToRawMatrix3x2(),
Opacity = 1
}));
}
throw new NotSupportedException();
}
}
