HatchBrush.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / CommonUI / System / Drawing / Advanced / HatchBrush.cs / 1 / HatchBrush.cs

                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/*************************************************************************\ 
* 
* Copyright (c) 1998-1999, Microsoft Corp.  All Rights Reserved.
* 
* Module Name:
*
*   HatchBrush.cs
* 
* Abstract:
* 
*   COM+ wrapper for GDI+ HatchBrush objects 
*
* Revision History: 
*
*   12/15/1998 [....]
*       Created it.
* 
\**************************************************************************/
 
namespace System.Drawing.Drawing2D { 
    using System.Runtime.InteropServices;
    using System.Diagnostics; 
    using System;
    using System.Drawing;
    using System.ComponentModel;
    using Microsoft.Win32; 
    using System.Drawing.Internal;
 
    /** 
     * Represent a HatchBrush brush object
     */ 
    /// 
    /// 
    ///    Defines a rectangular brush with a hatch
    ///    style, a foreground color, and a background color. 
    /// 
    public sealed class HatchBrush : Brush 
    { 
        /**
         * Create a new hatch brush object 
         */
        /// 
        /// 
        ///     
        ///       Initializes a new instance of the  class with the specified  and foreground color.
        ///     
        ///  
        public HatchBrush(HatchStyle hatchstyle, Color foreColor) :
            this(hatchstyle, foreColor, Color.FromArgb( (int) unchecked( (int) 0xff000000) ) ) 
        {
        }

        ///  
        /// 
        ///     
        ///       Initializes a new instance of the  class with the specified , 
        ///       foreground color, and background color.
        ///     
        /// 
        public HatchBrush(HatchStyle hatchstyle, Color foreColor, Color backColor)
        {
            IntPtr brush = IntPtr.Zero; 
            int status = SafeNativeMethods.Gdip.GdipCreateHatchBrush((int) hatchstyle, foreColor.ToArgb(), backColor.ToArgb(), out brush);
 
            if (status != SafeNativeMethods.Gdip.Ok) 
                throw SafeNativeMethods.Gdip.StatusException(status);
 
            SetNativeBrush(brush);
        }

        ///  
        ///     Constructor to initialize this object from a GDI+ native reference.
        ///  
        internal HatchBrush(IntPtr nativeBrush ) 
        {
            Debug.Assert( nativeBrush != IntPtr.Zero, "Initializing native brush with null." ); 
            SetNativeBrush( nativeBrush );
        }

        ///  
        /// 
        ///    Creates an exact copy of this . 
        ///  
        public override object Clone()
        { 
            IntPtr cloneBrush = IntPtr.Zero;

            int status = SafeNativeMethods.Gdip.GdipCloneBrush(new HandleRef(this, this.NativeBrush), out cloneBrush);
 
            if (status != SafeNativeMethods.Gdip.Ok)
                throw SafeNativeMethods.Gdip.StatusException(status); 
 
            return new HatchBrush(cloneBrush);
        } 

        /**
         * Get hatch brush object attributes
         */ 
        /// 
        ///  
        ///    Gets the hatch style of this . 
        /// 
        public HatchStyle HatchStyle 
        {
            get {
                int hatchStyle = 0;
 
                int status = SafeNativeMethods.Gdip.GdipGetHatchStyle(new HandleRef(this, this.NativeBrush), out hatchStyle);
 
                if (status != SafeNativeMethods.Gdip.Ok) 
                    throw SafeNativeMethods.Gdip.StatusException(status);
 
                return (HatchStyle) hatchStyle;
            }
        }
 
        /// 
        ///  
        ///    Gets the color of hatch lines drawn by this 
        /// .
        ///  
        public Color ForegroundColor
        {
            get {
                int forecol; 

                int status = SafeNativeMethods.Gdip.GdipGetHatchForegroundColor(new HandleRef(this, this.NativeBrush), out forecol); 
 
                if (status != SafeNativeMethods.Gdip.Ok)
                    throw SafeNativeMethods.Gdip.StatusException(status); 

                return Color.FromArgb(forecol);
            }
        } 

        ///  
        ///  
        ///    
        ///       Gets the color of spaces between the hatch 
        ///       lines drawn by this .
        ///    
        /// 
        public Color BackgroundColor 
        {
            get { 
                int backcol; 

                int status = SafeNativeMethods.Gdip.GdipGetHatchBackgroundColor(new HandleRef(this, this.NativeBrush), out backcol); 

                if (status != SafeNativeMethods.Gdip.Ok)
                    throw SafeNativeMethods.Gdip.StatusException(status);
 
                return Color.FromArgb(backcol);
            } 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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