glassbutton.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
using PushButtonState = System.Windows.Forms.VisualStyles.PushButtonState;

namespace Glass
{
    /// <summary>
    /// Represents a glass button control.
    /// </summary>
    [ToolboxBitmap(typeof(GlassButton)), ToolboxItem(true), ToolboxItemFilter("System.Windows.Forms"), Description("Raises an event when the user clicks it.")]
    public partial class GlassButton : Button
    {
        #region " Constructors "

        /// <summary>
        /// Initializes a new instance of the <see cref="Glass.GlassButton" /> class.
        /// </summary>
        public GlassButton()
        {
            InitializeComponent();
            timer.Interval = animationLength / framesCount;
            base.BackColor = Color.Transparent;
            BackColor = Color.Black;
            ForeColor = Color.White;
            OuterBorderColor = Color.White;
            InnerBorderColor = Color.Black;
            ShineColor = Color.White;
            GlowColor = Color.FromArgb(-7488001);//unchecked((int)(0xFF8DBDFF)));
            SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor | ControlStyles.UserPaint, true);
            SetStyle(ControlStyles.Opaque, false);
        }

        #endregion

        #region " Fields and Properties "

        private Color _backColor;
        /// <summary>
        /// Gets or sets the background color of the control.
        /// </summary>
        /// <returns>A <see cref="T:System.Drawing.Color" /> value representing the background color.</returns>
        [DefaultValue(typeof(Color), "Black")]
        public virtual new Color BackColor
        {
            get { return _backColor; }
            set
            {
                if (!_backColor.Equals(value))
                {
                    _backColor = value;
                    UseVisualStyleBackColor = false;
                    CreateFrames();
                    OnBackColorChanged(EventArgs.Empty);
                }
            }
        }

        /// <summary>
        /// Gets or sets the foreground color of the control.
        /// </summary>
        /// <returns>The foreground <see cref="T:System.Drawing.Color" /> of the control.</returns>
        [DefaultValue(typeof(Color), "White")]
        public virtual new Color ForeColor
        {
            get { return base.ForeColor; }
            set
            {
                base.ForeColor = value;
            }
        }

        private Color _innerBorderColor;
        /// <summary>
        /// Gets or sets the inner border color of the control.
        /// </summary>
        /// <returns>A <see cref="T:System.Drawing.Color" /> value representing the color of the inner border.</returns>
        [DefaultValue(typeof(Color), "Black"), Category("Appearance"), Description("The inner border color of the control.")]
        public virtual Color InnerBorderColor
        {
            get { return _innerBorderColor; }
            set
            {
                if (_innerBorderColor != value)
                {
                    _innerBorderColor = value;
                    CreateFrames();
                    if (IsHandleCreated)
                    {
                        Invalidate();
                    }
                    OnInnerBorderColorChanged(EventArgs.Empty);
                }
            }
        }

        private Color _outerBorderColor;
        /// <summary>
        /// Gets or sets the outer border color of the control.
        /// </summary>
        /// <returns>A <see cref="T:System.Drawing.Color" /> value representing the color of the outer border.</returns>
        [DefaultValue(typeof(Color), "White"), Category("Appearance"), Description("The outer border color of the control.")]
        public virtual Color OuterBorderColor
        {
            get { return _outerBorderColor; }
            set
            {
                if (_outerBorderColor != value)
                {
                    _outerBorderColor = value;
                    CreateFrames();
                    if (IsHandleCreated)
                    {
                        Invalidate();
                    }
                    OnOuterBorderColorChanged(EventArgs.Empty);
                }
            }
        }

        private Color _shineColor;
        /// <summary>
        /// Gets or sets the shine color of the control.
        /// </summary>
        /// <returns>A <see cref="T:System.Drawing.Color" /> value representing the shine color.</returns>
        [DefaultValue(typeof(Color), "White"), Category("Appearance"), Description("The shine color of the control.")]
        public virtual Color ShineColor
        {
            get { return _shineColor; }
            set
            {
                if (_shineColor != value)
                {
                    _shineColor = value;
                    CreateFrames();
                    if (IsHandleCreated)
                    {
                        Invalidate();
                    }
                    OnShineColorChanged(EventArgs.Empty);
                }
            }
        }

        private Color _glowColor;
        /// <summary>
        /// Gets or sets the glow color of the control.
        /// </summary>
        /// <returns>A <see cref="T:System.Drawing.Color" /> value representing the glow color.</returns>
        [DefaultValue(typeof(Color), "255,141,189,255"), Category("Appearance"), Description("The glow color of the control.")]
        public virtual Color GlowColor
        {
            get { return _glowColor; }
            set
            {
                if (_glowColor != value)
                {
                    _glowColor = value;
                    CreateFrames();
                    if (IsHandleCreated)
                    {
                        Invalidate();
                    }
                    OnGlowColorChanged(EventArgs.Empty);
                }
            }
        }

        private bool _fadeOnFocus;
        /// <summary>
        /// Gets or sets a value indicating whether the button should fade in and fade out when it's getting and loosing the focus.
        /// </summary>
        /// <value><c>true</c> if fading with changing the focus; otherwise, <c>false</c>.</value>
        [DefaultValue(false), Category("Appearance"), Description("Indicates whether the button should fade in and fade out when it is getting and loosing the focus.")]
        public virtual bool FadeOnFocus
        {
            get { return _fadeOnFocus; }
            set
            {
                if (_fadeOnFocus != value)
                {
                    _fadeOnFocus = value;
                }
            }
        }

        private bool _isHovered;
        private bool _isFocused;
        private bool _isFocusedByKey;
        private bool _isKeyDown;
        private bool _isMouseDown;
        private bool IsPressed { get { return _isKeyDown || (_isMouseDown && _isHovered); } }

        /// <summary>
        /// Gets the state of the button control.
        /// </summary>
        /// <value>The state of the button control.</value>
        [Browsable(false)]
        public PushButtonState State
        {
            get
            {
                if (!Enabled)
                {
                    return PushButtonState.Disabled;
                }
                if (IsPressed)
                {
                    return PushButtonState.Pressed;
                }
                if (_isHovered)
                {
                    return PushButtonState.Hot;
                }
                if (_isFocused || IsDefault)
                {
                    return PushButtonState.Default;
                }
                return PushButtonState.Normal;
            }
        }

        #endregion

        #region " Events "

        /// <summary>Occurs when the value of the <see cref="P:Glass.GlassButton.InnerBorderColor" /> property changes.</summary>
        [Description("Event raised when the value of the InnerBorderColor property is changed."), Category("Property Changed")]
        public event EventHandler InnerBorderColorChanged;

        /// <summary>
        /// Raises the <see cref="E:Glass.GlassButton.InnerBorderColorChanged" /> event.
        /// </summary>
        /// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
        protected virtual void OnInnerBorderColorChanged(EventArgs e)
        {
            if (InnerBorderColorChanged != null)
            {
                InnerBorderColorChanged(this, e);
            }
        }

        /// <summary>Occurs when the value of the <see cref="P:Glass.GlassButton.OuterBorderColor" /> property changes.</summary>
        [Description("Event raised when the value of the OuterBorderColor property is changed."), Category("Property Changed")]
        public event EventHandler OuterBorderColorChanged;

        /// <summary>
        /// Raises the <see cref="E:Glass.GlassButton.OuterBorderColorChanged" /> event.
        /// </summary>
        /// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
        protected virtual void OnOuterBorderColorChanged(EventArgs e)
        {
            if (OuterBorderColorChanged != null)
            {
                OuterBorderColorChanged(this, e);
            }
        }

        /// <summary>Occurs when the value of the <see cref="P:Glass.GlassButton.ShineColor" /> property changes.</summary>
        [Description("Event raised when the value of the ShineColor property is changed."), Category("Property Changed")]
        public event EventHandler ShineColorChanged;

        /// <summary>
        /// Raises the <see cref="E:Glass.GlassButton.ShineColorChanged" /> event.
        /// </summary>
        /// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
        protected virtual void OnShineColorChanged(EventArgs e)
        {
            if (ShineColorChanged != null)
            {
                ShineColorChanged(this, e);
            }
        }

        /// <summary>Occurs when the value of the <see cref="P:Glass.GlassButton.GlowColor" /> property changes.</summary>
        [Description("Event raised when the value of the GlowColor property is changed."), Category("Property Changed")]
        public event EventHandler GlowColorChanged;

        /// <summary>
        /// Raises the <see cref="E:Glass.GlassButton.GlowColorChanged" /> event.
        /// </summary>
        /// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
        protected virtual void OnGlowColorChanged(EventArgs e)
        {
            if (GlowColorChanged != null)
            {
                GlowColorChanged(this, e);
            }
        }

        #endregion

        #region " Overrided Methods "

        /// <summary>
        /// Raises the <see cref="E:System.Windows.Forms.Control.SizeChanged" /> event.
        /// </summary>