зеркало из https://github.com/AvaloniaUI/Avalonia.git
74 строки
2.6 KiB
C#
74 строки
2.6 KiB
C#
// -----------------------------------------------------------------------
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// <copyright file="IDrawingContext.cs" company="Steven Kirk">
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// Copyright 2013 MIT Licence. See licence.md for more information.
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// </copyright>
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// -----------------------------------------------------------------------
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namespace Perspex.Media
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{
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using System;
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using Perspex.Media.Imaging;
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/// <summary>
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/// Defines the interface through which drawing occurs.
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/// </summary>
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public interface IDrawingContext : IDisposable
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{
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Matrix CurrentTransform { get; }
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void DrawImage(IBitmap source, double opacity, Rect sourceRect, Rect destRect);
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/// <summary>
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/// Draws a line.
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/// </summary>
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/// <param name="pen">The stroke pen.</param>
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/// <param name="p1">The first point of the line.</param>
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/// <param name="p1">The second point of the line.</param>
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void DrawLine(Pen pen, Point p1, Point p2);
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/// <summary>
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/// Draws a geometry.
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/// </summary>
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/// <param name="brush">The fill brush.</param>
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/// <param name="pen">The stroke pen.</param>
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/// <param name="geometry">The geometry.</param>
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void DrawGeometry(Brush brush, Pen pen, Geometry geometry);
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/// <summary>
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/// Draws the outline of a rectangle.
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/// </summary>
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/// <param name="pen">The pen.</param>
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/// <param name="rect">The rectangle bounds.</param>
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void DrawRectange(Pen pen, Rect rect);
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/// <summary>
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/// Draws text.
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/// </summary>
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/// <param name="foreground">The foreground brush.</param>
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/// <param name="origin">The upper-left corner of the text.</param>
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/// <param name="text">The text.</param>
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void DrawText(Brush foreground, Point origin, FormattedText text);
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/// <summary>
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/// Draws a filled rectangle.
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/// </summary>
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/// <param name="brush">The brush.</param>
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/// <param name="rect">The rectangle bounds.</param>
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void FillRectange(Brush brush, Rect rect);
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/// <summary>
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/// Pushes a clip rectange.
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/// </summary>
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/// <param name="clip">The clip rectangle.</param>
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/// <returns>A disposable used to undo the clip rectangle.</returns>
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IDisposable PushClip(Rect clip);
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/// <summary>
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/// Pushes a matrix transformation.
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/// </summary>
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/// <param name="matrix">The matrix</param>
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/// <returns>A disposable used to undo the transformation.</returns>
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IDisposable PushTransform(Matrix matrix);
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}
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}
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