private void DrawPadButton(IImageProcessingContext context, PointF point, Image icon, string label, bool pressed, bool enabled)
{
// Use relative positions so we can center the the entire drawing later.
float iconX = 0;
float iconY = 0;
float iconWidth = icon.Width;
float iconHeight = icon.Height;
var labelRectangle = MeasureString(label, _labelsTextFont);
float labelPositionX = iconWidth + 8 - labelRectangle.X;
float labelPositionY = 3;
float fullWidth = labelPositionX + labelRectangle.Width + labelRectangle.X;
float fullHeight = iconHeight;
// Convert all relative positions into absolute.
float originX = (int)(point.X - fullWidth / 2);
float originY = (int)(point.Y - fullHeight / 2);
iconX += originX;
iconY += originY;
var iconPosition = new Point((int)iconX, (int)iconY);
var labelPosition = new PointF(labelPositionX + originX, labelPositionY + originY);
var selectedRectangle = new RectangleF(originX - 2 * _padPressedPenWidth, originY - 2 * _padPressedPenWidth,
fullWidth + 4 * _padPressedPenWidth, fullHeight + 4 * _padPressedPenWidth);
var boundRectangle = new RectangleF(originX, originY, fullWidth, fullHeight);
boundRectangle.Inflate(4 * _padPressedPenWidth, 4 * _padPressedPenWidth);
context.Fill(_panelBrush, boundRectangle);
context.DrawImage(icon, iconPosition, 1);
context.DrawText(label, _labelsTextFont, _textNormalColor, labelPosition);
if (enabled)
{
if (pressed)
{
context.Draw(_padPressedPen, selectedRectangle);
}
}
else
{
// Just draw a semi-transparent rectangle on top to fade the component with the background.
// TODO (caian): This will not work if one decides to add make background semi-transparent as well.
context.Fill(_disabledBrush, boundRectangle);
}
}
static IImageProcessingContext DrawTextOldVersion(
IImageProcessingContext source,
DrawingOptions options,
TextOptions textOptions,
string text,
IBrush brush,
IPen pen)
{
IPathCollection glyphs = TextBuilder.GenerateGlyphs(text, textOptions);
var pathOptions = new DrawingOptions()
{
GraphicsOptions = options.GraphicsOptions
};
if (brush != null)
{
source.Fill(pathOptions, brush, glyphs);
}
if (pen != null)
{
source.Draw(pathOptions, pen, glyphs);
}
return(source);
}
/// <summary>
/// Draws the text using the default resolution of <value>72dpi</value> onto the the image filled via the brush then outlined via the pen.
/// </summary>
/// <typeparam name="TPixel">The type of the color.</typeparam>
/// <param name="source">The image this method extends.</param>
/// <param name="text">The text.</param>
/// <param name="font">The font.</param>
/// <param name="brush">The brush.</param>
/// <param name="pen">The pen.</param>
/// <param name="location">The location.</param>
/// <param name="options">The options.</param>
/// <returns>
/// The <see cref="Image{TPixel}" />.
/// </returns>
public static IImageProcessingContext <TPixel> DrawText <TPixel>(this IImageProcessingContext <TPixel> source, string text, Font font, IBrush <TPixel> brush, IPen <TPixel> pen, PointF location, TextGraphicsOptions options)
where TPixel : struct, IPixel <TPixel>
{
float dpiX = DefaultTextDpi;
float dpiY = DefaultTextDpi;
var style = new RendererOptions(font, dpiX, dpiY, location)
{
ApplyKerning = options.ApplyKerning,
TabWidth = options.TabWidth,
WrappingWidth = options.WrapTextWidth,
HorizontalAlignment = options.HorizontalAlignment,
VerticalAlignment = options.VerticalAlignment
};
IPathCollection glyphs = TextBuilder.GenerateGlyphs(text, style);
var pathOptions = (GraphicsOptions)options;
if (brush != null)
{
source.Fill(brush, glyphs, pathOptions);
}
if (pen != null)
{
source.Draw(pen, glyphs, pathOptions);
}
return(source);
}
private void drawText(IImageProcessingContext pc, string message, string foreColor, string backColor)
{
var fColor = Color.ParseHex(foreColor);
var bColor = Color.ParseHex(backColor);
pc.Fill(bColor);
pc.DrawText(message, _font, fColor, new PointF(0, 0));
}
/// <summary>
/// Flood fills the image in the shape of the provided polygon with the specified brush.
/// </summary>
/// <typeparam name="TPixel">The type of the color.</typeparam>
/// <param name="source">The image this method extends.</param>
/// <param name="brush">The brush.</param>
/// <param name="path">The shape.</param>
/// <param name="options">The graphics options.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext <TPixel> Fill <TPixel>(this IImageProcessingContext <TPixel> source, IBrush <TPixel> brush, Action <PathBuilder> path, GraphicsOptions options)
where TPixel : struct, IPixel <TPixel>
{
var pb = new PathBuilder();
path(pb);
return(source.Fill(brush, pb.Build(), options));
}
/// <summary>
/// Flood fills the image in the shape of the provided polygon with the specified brush..
/// </summary>
/// <typeparam name="TPixel">The type of the color.</typeparam>
/// <param name="source">The image this method extends.</param>
/// <param name="brush">The brush.</param>
/// <param name="paths">The shapes.</param>
/// <param name="options">The graphics options.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext <TPixel> Fill <TPixel>(this IImageProcessingContext <TPixel> source, IBrush <TPixel> brush, IPathCollection paths, GraphicsOptions options)
where TPixel : struct, IPixel <TPixel>
{
foreach (IPath s in paths)
{
source.Fill(brush, s, options);
}
return(source);
}
public static void Round(this IImageProcessingContext <Rgba32> img, float radius)
{
var size = img.GetCurrentSize();
var gOptions = new GraphicsOptions(true)
{
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut
};
img.Fill(gOptions, Rgba32.Black, BuildCorners(size.Width, size.Height, radius));
}
public override void Render(IImageProcessingContext <Rgba32> context, Rectangle cellArea, RenderCell cell)
{
Rgba32?renderingColor = GetRenderingColor(cell);
if (renderingColor == null)
{
return;
}
context.Fill(renderingColor.Value, cellArea);
}
/// <summary>
/// Flood fills the image within the provided region defined by an <see cref="PathBuilder"/> method
/// using the specified brush.
/// </summary>
/// <param name="source">The image processing context.</param>
/// <param name="options">The graphics options.</param>
/// <param name="brush">The brush.</param>
/// <param name="region">The <see cref="PathBuilder"/> method defining the region to fill.</param>
/// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
public static IImageProcessingContext Fill(
this IImageProcessingContext source,
DrawingOptions options,
IBrush brush,
Action <PathBuilder> region)
{
var pb = new PathBuilder();
region(pb);
return(source.Fill(options, brush, pb.Build()));
}
/// <summary>
/// Flood fills the image in the shape of the provided polygon with the specified brush.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="options">The graphics options.</param>
/// <param name="brush">The brush.</param>
/// <param name="path">The shape.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext Fill(
this IImageProcessingContext source,
ShapeGraphicsOptions options,
IBrush brush,
Action <PathBuilder> path)
{
var pb = new PathBuilder();
path(pb);
return(source.Fill(options, brush, pb.Build()));
}
private static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
var(width, height) = ctx.GetCurrentSize();
var corners = BuildCorners(width, height, cornerRadius);
var graphicOptions = new GraphicsOptions(enableAntialiasing: true)
{
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut
};
return(ctx.Fill(graphicOptions, Rgba32.Red, corners));
}
private static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
var size = ctx.GetCurrentSize();
var corners = BuildCorners(size.Width, size.Height, cornerRadius);
var graphicOptions = new GraphicsOptions(true)
{
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut // enforces that any part of this shape that has color is punched out of the background
};
return(ctx.Fill(graphicOptions, Rgba32.LimeGreen, corners));
}
public override void DrawPoint(IImageProcessingContext context, float scale, PointF point)
{
if (scale == 0)
{
return;
}
if (Size.Width == 0 || Size.Height == 0)
{
return;
}
float width = scale * Size.Width;
float height = scale * Size.Height;
RectangleF rectangle = new RectangleF(point.X - width / 2, point.Y - height / 2, scale * Size.Width, scale * Size.Height);
PointF[] points = null;
switch (PointShape)
{
case PointShape.Diamond:
points = rectangle.ToRegularPoints(4);
break;
case PointShape.Ellipse:
points = rectangle.ToEllipsePoints();
break;
case PointShape.Hexagon:
points = rectangle.ToRegularPoints(6);
break;
case PointShape.Pentagon:
points = rectangle.ToRegularPoints(5);
break;
case PointShape.Rectangle:
points = rectangle.ToPoints();
break;
case PointShape.Star:
points = rectangle.ToStarsPoints();
break;
case PointShape.Triangle:
points = rectangle.ToRegularPoints(3);
break;
}
IPath path = points.ToPath();
path = path.Rotate(Angle);
path = path.Translate(Offset);
context.Fill(Color, path);
DrawOutLine(context, scale, path);
}
/// <summary>
/// Flood fills the image in the shape of the provided polygon with the specified brush.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="options">The graphics options.</param>
/// <param name="brush">The brush.</param>
/// <param name="paths">The shapes.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext Fill(
this IImageProcessingContext source,
ShapeGraphicsOptions options,
IBrush brush,
IPathCollection paths)
{
foreach (IPath s in paths)
{
source.Fill(options, brush, s);
}
return(source);
}
public static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
Size size = ctx.GetCurrentSize();
IPathCollection corners = BuildCorners(size.Width, size.Height, cornerRadius);
ctx.SetGraphicsOptions(new GraphicsOptions()
{
Antialias = true,
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut
});
return(ctx.Fill(Color.Red, corners));
}
// This method can be seen as an inline implementation of an `IImageProcessor`:
// (The combination of `IImageOperations.Apply()` + this could be replaced with an `IImageProcessor`)
private static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
Size size = ctx.GetCurrentSize();
IPathCollection corners = BuildCorners(size.Width, size.Height, cornerRadius);
var graphicOptions = new GraphicsOptions(true)
{
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut // enforces that any part of this shape that has color is punched out of the background
};
// mutating in here as we already have a cloned original
// use any color (not Transparent), so the corners will be clipped
return(ctx.Fill(graphicOptions, Rgba32.LimeGreen, corners));
}
public static void ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
var(width, height) = ctx.GetCurrentSize();
var corners = BuildCorners(width, height, cornerRadius);
var graphicOptions = new GraphicsOptions(true)
{
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut // Enforces that any part of this shape that has color is punched out of the background
};
// Mutating in here as we already have a cloned original
// use any color (not Transparent), so the corners will be clipped
ctx.Fill(graphicOptions, Rgba32.LimeGreen, corners);
}
public static IImageProcessingContext ApplyRoundedCorners(
this IImageProcessingContext ctx)
{
(int width, int height) = ctx.GetCurrentSize();
IPathCollection corners = BuildCorners(width, height);
var graphicOptions = new GraphicsOptions(true)
{
// enforces that any part of this shape that has color is punched out of the background
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut
};
// use any color (not Transparent), so the corners will be clipped
return(ctx.Fill(graphicOptions, Rgba32.LimeGreen, corners));
}
public void DrawPolygon(IImageProcessingContext context, float scale, IPath path)
{
if (context == null || path == null)
{
return;
}
IBrush brush = GetBrush();
if (brush == null)
{
return;
}
context.Fill(brush, path);
DrawOutLine(context, scale, path);
}
private static IImageProcessingContext DrawUsername(this IImageProcessingContext source,
Font userFont, Font discFont, string username, string discrim, PointF location)
{
var options = new TextGraphicsOptions {
TextOptions = { ApplyKerning = true, VerticalAlignment = VerticalAlignment.Bottom }
};
var userOptions = new RendererOptions(userFont, location)
{
ApplyKerning = options.TextOptions.ApplyKerning, VerticalAlignment = options.TextOptions.VerticalAlignment
};
IPathCollection userGlyphs = TextBuilder.GenerateGlyphs(username, userOptions);
while (userGlyphs.Bounds.Width > MaxUsernameLength)
{
var trimmedUser = new StringBuilder();
trimmedUser.Append(username.Remove(username.Length - 1));
username = trimmedUser.ToString();
trimmedUser.Append("...");
userGlyphs = TextBuilder.GenerateGlyphs(trimmedUser.ToString(), userOptions);
}
var discrimLocation = new PointF(userGlyphs.Bounds.Right + 2, location.Y);
var discrimOptions = new RendererOptions(discFont, discrimLocation)
{
ApplyKerning = options.TextOptions.ApplyKerning, VerticalAlignment = options.TextOptions.VerticalAlignment
};
IPathCollection discrimGlyphs = TextBuilder.GenerateGlyphs(discrim, discrimOptions);
source.Fill(Brushes.Solid(Color.DarkSlateGray), userGlyphs);
source.Fill(Brushes.Solid(Color.DarkSlateGray), discrimGlyphs);
return(source);
}
// https://github.com/SixLabors/Samples/blob/master/ImageSharp/AvatarWithRoundedCorner/Program.cs
public static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
Size size = ctx.GetCurrentSize();
IPathCollection corners = BuildCorners(size.Width, size.Height, cornerRadius);
ctx.SetGraphicsOptions(new GraphicsOptions()
{
Antialias = true,
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut // enforces that any part of this shape that has color is punched out of the background
});
foreach (var c in corners)
{
ctx = ctx.Fill(SixLabors.ImageSharp.Color.Red, c);
}
return(ctx);
}
// This method can be seen as an inline implementation of an `IImageProcessor`:
// (The combination of `IImageOperations.Apply()` + this could be replaced with an `IImageProcessor`)
private static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
Size size = ctx.GetCurrentSize();
IPathCollection corners = BuildCorners(size.Width, size.Height, cornerRadius);
ctx.SetGraphicsOptions(new GraphicsOptions()
{
Antialias = true,
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut // enforces that any part of this shape that has color is punched out of the background
});
// mutating in here as we already have a cloned original
// use any color (not Transparent), so the corners will be clipped
foreach (var c in corners)
{
ctx = ctx.Fill(Color.Red, c);
}
return(ctx);
}
static IImageProcessingContext DrawTextOldVersion(
IImageProcessingContext source,
TextGraphicsOptions options,
string text,
Fonts.Font font,
IBrush brush,
IPen pen,
PointF location)
{
var style = new Fonts.RendererOptions(font, options.TextOptions.DpiX, options.TextOptions.DpiY, location)
{
ApplyKerning = options.TextOptions.ApplyKerning,
TabWidth = options.TextOptions.TabWidth,
WrappingWidth = options.TextOptions.WrapTextWidth,
HorizontalAlignment = options.TextOptions.HorizontalAlignment,
VerticalAlignment = options.TextOptions.VerticalAlignment
};
IPathCollection glyphs = TextBuilder.GenerateGlyphs(text, style);
var pathOptions = new ShapeGraphicsOptions()
{
GraphicsOptions = options.GraphicsOptions
};
if (brush != null)
{
source.Fill(pathOptions, brush, glyphs);
}
if (pen != null)
{
source.Draw(pathOptions, pen, glyphs);
}
return(source);
}
public void Render(GraphBuilder context, IImageProcessingContext <Rgba32> renderContext, GraphicsOptions options)
{
float leftBoundPixel = context.GridRegion.Left;
float rightBoundPixel = context.GridRegion.Right;
float topBoundPixel = context.GridRegion.Top;
float bottomBoundPixel = context.GridRegion.Bottom;
var data = Data.Select(point => new
{
PixelLocation = context.ToPixels(((PointF)point)) + context.GridRegion.Position() + context.Origin,
Data = point
}).Where(point => point.PixelLocation.X > leftBoundPixel && point.PixelLocation.X <rightBoundPixel && point.PixelLocation.Y> topBoundPixel && point.PixelLocation.Y < bottomBoundPixel)
.OrderBy(point => point.Data.X)
.ToArray();
while (data.Length > 0)
{
List <PointF> pixels = data.TakeWhile(p => !p.Data.BreakLine).Select(p => p.PixelLocation).ToList();
if (pixels.Count < data.Length)
{
// add the line-breaking point
pixels.Add(data[pixels.Count].PixelLocation);
}
if (LinePen != null)
{
renderContext.DrawLines(LinePen, pixels.ToArray(), options);
}
if (DataPointCircleRadius > 0)
{
foreach (var pixel in pixels)
{
renderContext.Fill(PointColor, new SixLabors.Shapes.EllipsePolygon(pixel, DataPointCircleRadius), options);
}
}
data = data.Skip(pixels.Count).ToArray();
}
}
/// <summary>
/// Draws the outline of the polygon with the provided pen.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="options">The options.</param>
/// <param name="pen">The pen.</param>
/// <param name="path">The path.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext Draw(
this IImageProcessingContext source,
GraphicsOptions options,
IPen pen,
IPath path) =>
source.Fill(options, pen.StrokeFill, new ShapePath(path, pen));
/// <summary>
/// Flood fills the image in the shape of a Linear polygon described by the points
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="color">The color.</param>
/// <param name="points">The points.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext FillPolygon(
this IImageProcessingContext source,
Color color,
params PointF[] points) =>
source.Fill(new SolidBrush(color), new Polygon(new LinearLineSegment(points)));
/// <summary>
/// Flood fills the image in the shape of a Linear polygon described by the points
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="brush">The brush.</param>
/// <param name="points">The points.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext FillPolygon(
this IImageProcessingContext source,
IBrush brush,
params PointF[] points) =>
source.Fill(brush, new Polygon(new LinearLineSegment(points)));
/// <summary>
/// Flood fills the image in the shape of the provided polygon with the specified brush.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="color">The color.</param>
/// <param name="paths">The paths.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext Fill(
this IImageProcessingContext source,
Color color,
IPathCollection paths) =>
source.Fill(new SolidBrush(color), paths);
/// <summary>
/// Flood fills the image in the shape of the provided polygon with the specified brush.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="options">The options.</param>
/// <param name="color">The color.</param>
/// <param name="paths">The paths.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext Fill(
this IImageProcessingContext source,
ShapeGraphicsOptions options,
Color color,
IPathCollection paths) =>
source.Fill(options, new SolidBrush(color), paths);
/// <summary>
/// Flood fills the image in the shape of the provided polygon with the specified brush.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="brush">The brush.</param>
/// <param name="paths">The paths.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext Fill(
this IImageProcessingContext source,
IBrush brush,
IPathCollection paths) =>
source.Fill(source.GetShapeGraphicsOptions(), brush, paths);
