StatusBarPanel.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / WinForms / Managed / System / WinForms / StatusBarPanel.cs / 1 / StatusBarPanel.cs

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

/* 
 */ 
namespace System.Windows.Forms {
    using System.Runtime.Serialization.Formatters; 
    using System.Runtime.Remoting;
    using System.Runtime.InteropServices;
    using System.ComponentModel;
    using System.ComponentModel.Design; 
    using System.Diagnostics;
    using System; 
    using System.Drawing; 
    using System.Windows.Forms;
    using Microsoft.Win32; 
    using System.Globalization;

    /// 
    ///  
    ///    
    ///       Stores the  
    ///       control panel's information. 
    ///    
    ///  
    [
    ToolboxItem(false),
    DesignTimeVisible(false),
    DefaultProperty("Text") 
    ]
    public class StatusBarPanel : Component, ISupportInitialize { 
 
        private const int DEFAULTWIDTH = 100;
        private const int DEFAULTMINWIDTH = 10; 
        private const int PANELTEXTINSET = 3;
        private const int PANELGAP = 2;

        private string          text          = ""; 
        private string          name          = "";
        private string          toolTipText   = ""; 
        private Icon            icon          = null; 

        private HorizontalAlignment        alignment     = HorizontalAlignment.Left; 
        private System.Windows.Forms.StatusBarPanelBorderStyle  borderStyle   = System.Windows.Forms.StatusBarPanelBorderStyle.Sunken;
        private StatusBarPanelStyle        style         = StatusBarPanelStyle.Text;

        // these are package scope so the parent can get at them. 
        //
        private StatusBar       parent          = null; 
        private int             width           = DEFAULTWIDTH; 
        private int             right           = 0;
        private int             minWidth        = DEFAULTMINWIDTH; 
        private int             index           = 0;
        private StatusBarPanelAutoSize autoSize = StatusBarPanelAutoSize.None;

        private bool initializing = false; 

        private object userData; 
 
        /// 
        ///  
        ///    
        ///       Initializes a new default instance of the  class.
        ///    
        ///  
        public StatusBarPanel() {
        } 
 
        /// 
        ///  
        ///    
        ///       Gets or sets the 
        ///       property.
        /// 
        ///    
        ///  
        [ 
        SRCategory(SR.CatAppearance),
        DefaultValue(HorizontalAlignment.Left), 
        Localizable(true),
        SRDescription(SR.StatusBarPanelAlignmentDescr)
        ]
        public HorizontalAlignment Alignment { 
            get {
                return alignment; 
            } 

            set { 
                //valid values are 0x0 to 0x2
                if (!ClientUtils.IsEnumValid(value, (int)value, (int)HorizontalAlignment.Left, (int)HorizontalAlignment.Center)){
                    throw new InvalidEnumArgumentException("value", (int)value, typeof(HorizontalAlignment));
                } 
                if (alignment != value) {
                    alignment = value; 
                    Realize(); 
                }
            } 
        }

        /// 
        ///  
        ///    
        ///       Gets or sets the  
        ///       property. 
        ///
        ///     
        /// 
        [
        SRCategory(SR.CatAppearance),
        DefaultValue(StatusBarPanelAutoSize.None), 
        RefreshProperties(RefreshProperties.All),
        SRDescription(SR.StatusBarPanelAutoSizeDescr) 
        ] 
        public StatusBarPanelAutoSize AutoSize {
            get { 
                return this.autoSize;
            }

            set { 
                //valid values are 0x1 to 0x3
                if (!ClientUtils.IsEnumValid(value, (int)value, (int)StatusBarPanelAutoSize.None, (int)StatusBarPanelAutoSize.Contents)){ 
                    throw new InvalidEnumArgumentException("value", (int)value, typeof(StatusBarPanelAutoSize)); 
                }
                if (this.autoSize != value) { 
                    this.autoSize = value;
                    UpdateSize();
                }
            } 
        }
 
 
        /// 
        ///  
        ///    
        ///       Gets or sets the 
        ///
        ///       property. 
        ///
        ///     
        ///  
        [
        SRCategory(SR.CatAppearance), 
        DefaultValue(System.Windows.Forms.StatusBarPanelBorderStyle.Sunken),
        DispId(NativeMethods.ActiveX.DISPID_BORDERSTYLE),
        SRDescription(SR.StatusBarPanelBorderStyleDescr)
        ] 
        public StatusBarPanelBorderStyle BorderStyle {
            get { 
                return borderStyle; 
            }
 
            set {
                //valid values are 0x1 to 0x3
                if (!ClientUtils.IsEnumValid(value, (int)value, (int)StatusBarPanelBorderStyle.None, (int)StatusBarPanelBorderStyle.Sunken)){
                    throw new InvalidEnumArgumentException("value", (int)value, typeof(StatusBarPanelBorderStyle)); 
                }
                if (this.borderStyle != value) { 
                    this.borderStyle = value; 
                    Realize();
                    if (Created) 
                        this.parent.Invalidate();
                }
            }
        } 

        ///  
        ///  
        /// 
        ///  
        internal bool Created {
            get {
                return this.parent != null && this.parent.ArePanelsRealized();
            } 
        }
 
        ///  
        /// 
        ///     
        ///       Gets or sets the 
        ///       property.
        ///
        ///     
        /// 
        [ 
        SRCategory(SR.CatAppearance), 
        DefaultValue(null),
        Localizable(true), 
        SRDescription(SR.StatusBarPanelIconDescr)
        ]
        public Icon Icon {
            get { 
                // unfortunately we have no way of getting the icon from the control.
                return this.icon; 
            } 
            set {
 
                if (value != null && (((Icon)value).Height > SystemInformation.SmallIconSize.Height || ((Icon)value).Width > SystemInformation.SmallIconSize.Width)) {
                    this.icon  = new Icon(value, SystemInformation.SmallIconSize);
                }
                else { 
                    this.icon = value;
                } 
 
                if (Created) {
                    IntPtr handle = (this.icon == null) ? IntPtr.Zero : this.icon.Handle; 
                    this.parent.SendMessage(NativeMethods.SB_SETICON, (IntPtr)GetIndex(), handle);

                }
                UpdateSize(); 
                if (Created) {
                    this.parent.Invalidate(); 
                } 
            }
        } 

        /// 
        /// 
        ///     
        ///       Expose index internally
        ///     
        ///  
        internal int Index
        { 
            get
            {
                return index;
            } 
            set
            { 
                index = value; 
            }
        } 
        /// 
        /// 
        ///    
        ///       Gets or sets the minimum width the  can be within the  
        ///       control.
        /// 
        ///     
        /// 
        [ 
        SRCategory(SR.CatBehavior),
        DefaultValue(DEFAULTMINWIDTH),
        Localizable(true),
        RefreshProperties(RefreshProperties.All), 
        SRDescription(SR.StatusBarPanelMinWidthDescr)
        ] 
        public int MinWidth { 
            get {
                return this.minWidth; 
            }
            set {
                if (value < 0) {
                    throw new ArgumentOutOfRangeException("MinWidth", SR.GetString(SR.InvalidLowBoundArgumentEx, "MinWidth", value.ToString(CultureInfo.CurrentCulture), (0).ToString(CultureInfo.CurrentCulture))); 
                }
 
                if (value != this.minWidth) { 
                    this.minWidth = value;
 
                    UpdateSize();
                    if (this.minWidth > this.Width) {
                        Width = value;
                    } 
                }
            } 
        } 

        ///  
        /// 
        ///    
        ///       Gets or sets the name of the panel.
        ///     
        /// 
 	[ 
        SRCategory(SR.CatAppearance), 
        Localizable(true),
        SRDescription(SR.StatusBarPanelNameDescr) 
        ]
        public string Name {
            get {
                return WindowsFormsUtils.GetComponentName(this, name); 
            }
            set { 
                name = value; 
                if(Site!= null) {
                    Site.Name = name; 
                }
            }
        }
 
        /// 
        ///  
        ///     
        ///       Represents the 
        ///       control which hosts the 
        ///       panel.
        ///
        ///    
        ///  
        [Browsable(false)]
        public StatusBar Parent { 
            get { 
                return parent;
            } 
        }

        /// 
        ///  
        ///    
        ///       Expose a direct setter for parent internally 
        ///     
        /// 
        internal StatusBar ParentInternal 
        {
            set
            {
                parent = value; 
            }
        } 
 
        /// 
        ///  
        ///    
        ///       Expose right internally
        ///    
        ///  
        internal int Right
        { 
            get 
            {
                return right; 
            }
            set
            {
                right = value; 
            }
        } 
 
        /// 
        ///  
        ///    
        ///       Gets or sets the style of the panel.
        ///
        ///     
        /// 
        [ 
        SRCategory(SR.CatAppearance), 
        DefaultValue(StatusBarPanelStyle.Text),
        SRDescription(SR.StatusBarPanelStyleDescr) 
        ]
        public StatusBarPanelStyle Style {
            get { return style;}
            set { 
                //valid values are 0x1 to 0x2
                if (!ClientUtils.IsEnumValid(value, (int)value, (int)StatusBarPanelStyle.Text, (int)StatusBarPanelStyle.OwnerDraw)){ 
                    throw new InvalidEnumArgumentException("value", (int)value, typeof(StatusBarPanelStyle)); 
                }
                if (this.style != value) { 
                    this.style = value;
                    Realize();
                    if (Created) {
                        this.parent.Invalidate(); 
                    }
                } 
            } 
        }
 
        /// 
        [
        SRCategory(SR.CatData),
        Localizable(false), 
        Bindable(true),
        SRDescription(SR.ControlTagDescr), 
        DefaultValue(null), 
        TypeConverter(typeof(StringConverter)),
        ] 
        public object Tag {
            get {
                return userData;
            } 
            set {
                userData = value; 
            } 
        }
 
        /// 
        /// 
        ///    
        ///       Gets or sets the text of the panel. 
        ///    
        ///  
        [ 
        SRCategory(SR.CatAppearance),
        Localizable(true), 
        DefaultValue(""),
        SRDescription(SR.StatusBarPanelTextDescr)
        ]
        public string Text { 
            get {
                if (text == null) { 
                    return ""; 
                }
                else { 
                    return text;
                }
            }
            set { 
                if (value == null) {
                    value = ""; 
                } 

                if (!Text.Equals(value)) { 

                    if (value.Length == 0) {
                        this.text = null;
                    } 
                    else {
                        this.text = value; 
                    } 
                    Realize();
                    UpdateSize(); 
                }
            }
        }
 
        /// 
        ///  
        ///     
        ///       Gets
        ///       or sets the panel's tool tip text. 
        ///    
        /// 
        [
        SRCategory(SR.CatAppearance), 
        Localizable(true),
        DefaultValue(""), 
        SRDescription(SR.StatusBarPanelToolTipTextDescr) 
        ]
        public string ToolTipText { 
            get {
                if (this.toolTipText == null) {
                    return "";
                } 
                else {
                    return this.toolTipText; 
                } 
            }
            set { 
                if (value == null) {
                    value = "";
                }
 
                if (!ToolTipText.Equals(value)) {
 
                    if (value.Length == 0) { 
                        this.toolTipText = null;
                    } 
                    else {
                        this.toolTipText = value;
                    }
 
                    if (Created) {
                        parent.UpdateTooltip(this); 
                    } 
                }
            } 
        }

        /// 
        ///  
        ///    
        ///       Gets or sets the width of the  within the  
        ///       control. 
        ///
        ///     
        /// 
        [
        Localizable(true),
        SRCategory(SR.CatAppearance), 
        DefaultValue(DEFAULTWIDTH),
        SRDescription(SR.StatusBarPanelWidthDescr) 
        ] 
        public int Width {
            get { 
                return this.width;
            }
            set {
                if (!initializing && value < this.minWidth) 
                    throw new ArgumentOutOfRangeException("Width", SR.GetString(SR.WidthGreaterThanMinWidth));
 
                this.width = value; 
                UpdateSize();
            } 
        }

        /// 
        ///  
        ///      Handles tasks required when the control is being initialized.
        ///  
        public void BeginInit() { 
            initializing = true;
        } 

        /// 
        /// 
        ///  
        /// 
        protected override void Dispose(bool disposing) { 
            if (disposing) { 
                if (parent != null) {
                    int index = GetIndex(); 
                    if (index != -1) {
                        parent.Panels.RemoveAt(index);
                    }
                } 
            }
            base.Dispose(disposing); 
        } 

        ///  
        /// 
        ///      Called when initialization of the control is complete.
        /// 
        public void EndInit() { 
            initializing = false;
 
            if (Width < MinWidth) { 
                Width = MinWidth;
            } 
        }

        /// 
        ///  
        /// 
        ///     Gets the width of the contents of the panel 
        ///  
        internal int GetContentsWidth(bool newPanel) {
            string text; 
            if (newPanel) {
                if (this.text == null)
                    text = "";
                else 
                    text = this.text;
            } 
            else 
                text = Text;
 
            Graphics g = this.parent.CreateGraphicsInternal();
            Size sz = Size.Ceiling(g.MeasureString(text, parent.Font));
            if (this.icon != null) {
                sz.Width += this.icon.Size.Width + 5; 
            }
            g.Dispose(); 
 
            int width = sz.Width + SystemInformation.BorderSize.Width*2 + PANELTEXTINSET*2 + PANELGAP;
            return Math.Max(width, minWidth); 
        }

        /// 
        ///  
        /// 
        ///     Returns the index of the panel by making the parent control search 
        ///     for it within its list. 
        /// 
        private int GetIndex() { 
            return index;
        }

        ///  
        /// 
        ///  
        ///     Sets all the properties for this panel. 
        /// 
        internal void Realize() { 
            if (Created) {
                string text;
                string  sendText;
                int     border = 0; 

                if (this.text == null) { 
                    text = ""; 
                }
                else { 
                    text = this.text;
                }

                HorizontalAlignment align = alignment; 
                // Translate the alignment for Rtl apps
                // 
                if (parent.RightToLeft == RightToLeft.Yes) { 
                    switch (align) {
                        case HorizontalAlignment.Left: 
                            align = HorizontalAlignment.Right;
                            break;
                        case HorizontalAlignment.Right:
                            align = HorizontalAlignment.Left; 
                            break;
                    } 
                } 

                switch (align) { 
                    case HorizontalAlignment.Center:
                        sendText = "\t" + text;
                        break;
                    case HorizontalAlignment.Right: 
                        sendText = "\t\t" + text;
                        break; 
                    default: 
                        sendText = text;
                        break; 
                }
                switch (borderStyle) {
                    case StatusBarPanelBorderStyle.None:
                        border |= NativeMethods.SBT_NOBORDERS; 
                        break;
                    case StatusBarPanelBorderStyle.Sunken: 
                        break; 
                    case StatusBarPanelBorderStyle.Raised:
                        border |= NativeMethods.SBT_POPOUT; 
                        break;
                }
                switch (style) {
                    case StatusBarPanelStyle.Text: 
                        break;
                    case StatusBarPanelStyle.OwnerDraw: 
                        border |= NativeMethods.SBT_OWNERDRAW; 
                        break;
                } 


                int wparam = GetIndex() | border;
                if (parent.RightToLeft == RightToLeft.Yes) { 
                    wparam |= NativeMethods.SBT_RTLREADING;
                } 
 
                int result = (int) UnsafeNativeMethods.SendMessage(new HandleRef(parent, parent.Handle), NativeMethods.SB_SETTEXT, (IntPtr)wparam, sendText);
 
                if (result == 0)
                    throw new InvalidOperationException(SR.GetString(SR.UnableToSetPanelText));

                if (this.icon != null && style != StatusBarPanelStyle.OwnerDraw) { 
                    this.parent.SendMessage(NativeMethods.SB_SETICON, (IntPtr)GetIndex(), this.icon.Handle);
                } 
                else { 
                    this.parent.SendMessage(NativeMethods.SB_SETICON, (IntPtr)GetIndex(), IntPtr.Zero);
                } 

                if (style == StatusBarPanelStyle.OwnerDraw) {
                    NativeMethods.RECT rect = new NativeMethods.RECT();
                    result = (int) UnsafeNativeMethods.SendMessage(new HandleRef(parent, parent.Handle), NativeMethods.SB_GETRECT, (IntPtr)GetIndex(), ref rect); 

                    if (result != 0) { 
                        this.parent.Invalidate(Rectangle.FromLTRB(rect.left, rect.top, rect.right, rect.bottom)); 
                    }
                } 
            }
        }

        private void UpdateSize() { 
            if (this.autoSize == StatusBarPanelAutoSize.Contents) {
                ApplyContentSizing(); 
            } 
            else {
                if (Created) { 
                    parent.DirtyLayout();
                    parent.PerformLayout();
                }
            } 
        }
 
        private void ApplyContentSizing() { 
            if (this.autoSize == StatusBarPanelAutoSize.Contents &&
                parent != null) { 
                int newWidth = GetContentsWidth(false);
                if (newWidth != this.Width) {
                    this.Width = newWidth;
                    if (Created) { 
                        parent.DirtyLayout();
                        parent.PerformLayout(); 
                    } 
                }
            } 
        }

        /// 
        ///  
        ///    
        ///       Retrieves a string that contains information about the 
        ///       panel. 
        ///    
        ///  
        public override string ToString() {
            return "StatusBarPanel: {" + Text + "}";
        }
    } 
}

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

/* 
 */ 
namespace System.Windows.Forms {
    using System.Runtime.Serialization.Formatters; 
    using System.Runtime.Remoting;
    using System.Runtime.InteropServices;
    using System.ComponentModel;
    using System.ComponentModel.Design; 
    using System.Diagnostics;
    using System; 
    using System.Drawing; 
    using System.Windows.Forms;
    using Microsoft.Win32; 
    using System.Globalization;

    /// 
    ///  
    ///    
    ///       Stores the  
    ///       control panel's information. 
    ///    
    ///  
    [
    ToolboxItem(false),
    DesignTimeVisible(false),
    DefaultProperty("Text") 
    ]
    public class StatusBarPanel : Component, ISupportInitialize { 
 
        private const int DEFAULTWIDTH = 100;
        private const int DEFAULTMINWIDTH = 10; 
        private const int PANELTEXTINSET = 3;
        private const int PANELGAP = 2;

        private string          text          = ""; 
        private string          name          = "";
        private string          toolTipText   = ""; 
        private Icon            icon          = null; 

        private HorizontalAlignment        alignment     = HorizontalAlignment.Left; 
        private System.Windows.Forms.StatusBarPanelBorderStyle  borderStyle   = System.Windows.Forms.StatusBarPanelBorderStyle.Sunken;
        private StatusBarPanelStyle        style         = StatusBarPanelStyle.Text;

        // these are package scope so the parent can get at them. 
        //
        private StatusBar       parent          = null; 
        private int             width           = DEFAULTWIDTH; 
        private int             right           = 0;
        private int             minWidth        = DEFAULTMINWIDTH; 
        private int             index           = 0;
        private StatusBarPanelAutoSize autoSize = StatusBarPanelAutoSize.None;

        private bool initializing = false; 

        private object userData; 
 
        /// 
        ///  
        ///    
        ///       Initializes a new default instance of the  class.
        ///    
        ///  
        public StatusBarPanel() {
        } 
 
        /// 
        ///  
        ///    
        ///       Gets or sets the 
        ///       property.
        /// 
        ///    
        ///  
        [ 
        SRCategory(SR.CatAppearance),
        DefaultValue(HorizontalAlignment.Left), 
        Localizable(true),
        SRDescription(SR.StatusBarPanelAlignmentDescr)
        ]
        public HorizontalAlignment Alignment { 
            get {
                return alignment; 
            } 

            set { 
                //valid values are 0x0 to 0x2
                if (!ClientUtils.IsEnumValid(value, (int)value, (int)HorizontalAlignment.Left, (int)HorizontalAlignment.Center)){
                    throw new InvalidEnumArgumentException("value", (int)value, typeof(HorizontalAlignment));
                } 
                if (alignment != value) {
                    alignment = value; 
                    Realize(); 
                }
            } 
        }

        /// 
        ///  
        ///    
        ///       Gets or sets the  
        ///       property. 
        ///
        ///     
        /// 
        [
        SRCategory(SR.CatAppearance),
        DefaultValue(StatusBarPanelAutoSize.None), 
        RefreshProperties(RefreshProperties.All),
        SRDescription(SR.StatusBarPanelAutoSizeDescr) 
        ] 
        public StatusBarPanelAutoSize AutoSize {
            get { 
                return this.autoSize;
            }

            set { 
                //valid values are 0x1 to 0x3
                if (!ClientUtils.IsEnumValid(value, (int)value, (int)StatusBarPanelAutoSize.None, (int)StatusBarPanelAutoSize.Contents)){ 
                    throw new InvalidEnumArgumentException("value", (int)value, typeof(StatusBarPanelAutoSize)); 
                }
                if (this.autoSize != value) { 
                    this.autoSize = value;
                    UpdateSize();
                }
            } 
        }
 
 
        /// 
        ///  
        ///    
        ///       Gets or sets the 
        ///
        ///       property. 
        ///
        ///     
        ///  
        [
        SRCategory(SR.CatAppearance), 
        DefaultValue(System.Windows.Forms.StatusBarPanelBorderStyle.Sunken),
        DispId(NativeMethods.ActiveX.DISPID_BORDERSTYLE),
        SRDescription(SR.StatusBarPanelBorderStyleDescr)
        ] 
        public StatusBarPanelBorderStyle BorderStyle {
            get { 
                return borderStyle; 
            }
 
            set {
                //valid values are 0x1 to 0x3
                if (!ClientUtils.IsEnumValid(value, (int)value, (int)StatusBarPanelBorderStyle.None, (int)StatusBarPanelBorderStyle.Sunken)){
                    throw new InvalidEnumArgumentException("value", (int)value, typeof(StatusBarPanelBorderStyle)); 
                }
                if (this.borderStyle != value) { 
                    this.borderStyle = value; 
                    Realize();
                    if (Created) 
                        this.parent.Invalidate();
                }
            }
        } 

        ///  
        ///  
        /// 
        ///  
        internal bool Created {
            get {
                return this.parent != null && this.parent.ArePanelsRealized();
            } 
        }
 
        ///  
        /// 
        ///     
        ///       Gets or sets the 
        ///       property.
        ///
        ///     
        /// 
        [ 
        SRCategory(SR.CatAppearance), 
        DefaultValue(null),
        Localizable(true), 
        SRDescription(SR.StatusBarPanelIconDescr)
        ]
        public Icon Icon {
            get { 
                // unfortunately we have no way of getting the icon from the control.
                return this.icon; 
            } 
            set {
 
                if (value != null && (((Icon)value).Height > SystemInformation.SmallIconSize.Height || ((Icon)value).Width > SystemInformation.SmallIconSize.Width)) {
                    this.icon  = new Icon(value, SystemInformation.SmallIconSize);
                }
                else { 
                    this.icon = value;
                } 
 
                if (Created) {
                    IntPtr handle = (this.icon == null) ? IntPtr.Zero : this.icon.Handle; 
                    this.parent.SendMessage(NativeMethods.SB_SETICON, (IntPtr)GetIndex(), handle);

                }
                UpdateSize(); 
                if (Created) {
                    this.parent.Invalidate(); 
                } 
            }
        } 

        /// 
        /// 
        ///     
        ///       Expose index internally
        ///     
        ///  
        internal int Index
        { 
            get
            {
                return index;
            } 
            set
            { 
                index = value; 
            }
        } 
        /// 
        /// 
        ///    
        ///       Gets or sets the minimum width the  can be within the  
        ///       control.
        /// 
        ///     
        /// 
        [ 
        SRCategory(SR.CatBehavior),
        DefaultValue(DEFAULTMINWIDTH),
        Localizable(true),
        RefreshProperties(RefreshProperties.All), 
        SRDescription(SR.StatusBarPanelMinWidthDescr)
        ] 
        public int MinWidth { 
            get {
                return this.minWidth; 
            }
            set {
                if (value < 0) {
                    throw new ArgumentOutOfRangeException("MinWidth", SR.GetString(SR.InvalidLowBoundArgumentEx, "MinWidth", value.ToString(CultureInfo.CurrentCulture), (0).ToString(CultureInfo.CurrentCulture))); 
                }
 
                if (value != this.minWidth) { 
                    this.minWidth = value;
 
                    UpdateSize();
                    if (this.minWidth > this.Width) {
                        Width = value;
                    } 
                }
            } 
        } 

        ///  
        /// 
        ///    
        ///       Gets or sets the name of the panel.
        ///     
        /// 
 	[ 
        SRCategory(SR.CatAppearance), 
        Localizable(true),
        SRDescription(SR.StatusBarPanelNameDescr) 
        ]
        public string Name {
            get {
                return WindowsFormsUtils.GetComponentName(this, name); 
            }
            set { 
                name = value; 
                if(Site!= null) {
                    Site.Name = name; 
                }
            }
        }
 
        /// 
        ///  
        ///     
        ///       Represents the 
        ///       control which hosts the 
        ///       panel.
        ///
        ///    
        ///  
        [Browsable(false)]
        public StatusBar Parent { 
            get { 
                return parent;
            } 
        }

        /// 
        ///  
        ///    
        ///       Expose a direct setter for parent internally 
        ///     
        /// 
        internal StatusBar ParentInternal 
        {
            set
            {
                parent = value; 
            }
        } 
 
        /// 
        ///  
        ///    
        ///       Expose right internally
        ///    
        ///  
        internal int Right
        { 
            get 
            {
                return right; 
            }
            set
            {
                right = value; 
            }
        } 
 
        /// 
        ///  
        ///    
        ///       Gets or sets the style of the panel.
        ///
        ///     
        /// 
        [ 
        SRCategory(SR.CatAppearance), 
        DefaultValue(StatusBarPanelStyle.Text),
        SRDescription(SR.StatusBarPanelStyleDescr) 
        ]
        public StatusBarPanelStyle Style {
            get { return style;}
            set { 
                //valid values are 0x1 to 0x2
                if (!ClientUtils.IsEnumValid(value, (int)value, (int)StatusBarPanelStyle.Text, (int)StatusBarPanelStyle.OwnerDraw)){ 
                    throw new InvalidEnumArgumentException("value", (int)value, typeof(StatusBarPanelStyle)); 
                }
                if (this.style != value) { 
                    this.style = value;
                    Realize();
                    if (Created) {
                        this.parent.Invalidate(); 
                    }
                } 
            } 
        }
 
        /// 
        [
        SRCategory(SR.CatData),
        Localizable(false), 
        Bindable(true),
        SRDescription(SR.ControlTagDescr), 
        DefaultValue(null), 
        TypeConverter(typeof(StringConverter)),
        ] 
        public object Tag {
            get {
                return userData;
            } 
            set {
                userData = value; 
            } 
        }
 
        /// 
        /// 
        ///    
        ///       Gets or sets the text of the panel. 
        ///    
        ///  
        [ 
        SRCategory(SR.CatAppearance),
        Localizable(true), 
        DefaultValue(""),
        SRDescription(SR.StatusBarPanelTextDescr)
        ]
        public string Text { 
            get {
                if (text == null) { 
                    return ""; 
                }
                else { 
                    return text;
                }
            }
            set { 
                if (value == null) {
                    value = ""; 
                } 

                if (!Text.Equals(value)) { 

                    if (value.Length == 0) {
                        this.text = null;
                    } 
                    else {
                        this.text = value; 
                    } 
                    Realize();
                    UpdateSize(); 
                }
            }
        }
 
        /// 
        ///  
        ///     
        ///       Gets
        ///       or sets the panel's tool tip text. 
        ///    
        /// 
        [
        SRCategory(SR.CatAppearance), 
        Localizable(true),
        DefaultValue(""), 
        SRDescription(SR.StatusBarPanelToolTipTextDescr) 
        ]
        public string ToolTipText { 
            get {
                if (this.toolTipText == null) {
                    return "";
                } 
                else {
                    return this.toolTipText; 
                } 
            }
            set { 
                if (value == null) {
                    value = "";
                }
 
                if (!ToolTipText.Equals(value)) {
 
                    if (value.Length == 0) { 
                        this.toolTipText = null;
                    } 
                    else {
                        this.toolTipText = value;
                    }
 
                    if (Created) {
                        parent.UpdateTooltip(this); 
                    } 
                }
            } 
        }

        /// 
        ///  
        ///    
        ///       Gets or sets the width of the  within the  
        ///       control. 
        ///
        ///     
        /// 
        [
        Localizable(true),
        SRCategory(SR.CatAppearance), 
        DefaultValue(DEFAULTWIDTH),
        SRDescription(SR.StatusBarPanelWidthDescr) 
        ] 
        public int Width {
            get { 
                return this.width;
            }
            set {
                if (!initializing && value < this.minWidth) 
                    throw new ArgumentOutOfRangeException("Width", SR.GetString(SR.WidthGreaterThanMinWidth));
 
                this.width = value; 
                UpdateSize();
            } 
        }

        /// 
        ///  
        ///      Handles tasks required when the control is being initialized.
        ///  
        public void BeginInit() { 
            initializing = true;
        } 

        /// 
        /// 
        ///  
        /// 
        protected override void Dispose(bool disposing) { 
            if (disposing) { 
                if (parent != null) {
                    int index = GetIndex(); 
                    if (index != -1) {
                        parent.Panels.RemoveAt(index);
                    }
                } 
            }
            base.Dispose(disposing); 
        } 

        ///  
        /// 
        ///      Called when initialization of the control is complete.
        /// 
        public void EndInit() { 
            initializing = false;
 
            if (Width < MinWidth) { 
                Width = MinWidth;
            } 
        }

        /// 
        ///  
        /// 
        ///     Gets the width of the contents of the panel 
        ///  
        internal int GetContentsWidth(bool newPanel) {
            string text; 
            if (newPanel) {
                if (this.text == null)
                    text = "";
                else 
                    text = this.text;
            } 
            else 
                text = Text;
 
            Graphics g = this.parent.CreateGraphicsInternal();
            Size sz = Size.Ceiling(g.MeasureString(text, parent.Font));
            if (this.icon != null) {
                sz.Width += this.icon.Size.Width + 5; 
            }
            g.Dispose(); 
 
            int width = sz.Width + SystemInformation.BorderSize.Width*2 + PANELTEXTINSET*2 + PANELGAP;
            return Math.Max(width, minWidth); 
        }

        /// 
        ///  
        /// 
        ///     Returns the index of the panel by making the parent control search 
        ///     for it within its list. 
        /// 
        private int GetIndex() { 
            return index;
        }

        ///  
        /// 
        ///  
        ///     Sets all the properties for this panel. 
        /// 
        internal void Realize() { 
            if (Created) {
                string text;
                string  sendText;
                int     border = 0; 

                if (this.text == null) { 
                    text = ""; 
                }
                else { 
                    text = this.text;
                }

                HorizontalAlignment align = alignment; 
                // Translate the alignment for Rtl apps
                // 
                if (parent.RightToLeft == RightToLeft.Yes) { 
                    switch (align) {
                        case HorizontalAlignment.Left: 
                            align = HorizontalAlignment.Right;
                            break;
                        case HorizontalAlignment.Right:
                            align = HorizontalAlignment.Left; 
                            break;
                    } 
                } 

                switch (align) { 
                    case HorizontalAlignment.Center:
                        sendText = "\t" + text;
                        break;
                    case HorizontalAlignment.Right: 
                        sendText = "\t\t" + text;
                        break; 
                    default: 
                        sendText = text;
                        break; 
                }
                switch (borderStyle) {
                    case StatusBarPanelBorderStyle.None:
                        border |= NativeMethods.SBT_NOBORDERS; 
                        break;
                    case StatusBarPanelBorderStyle.Sunken: 
                        break; 
                    case StatusBarPanelBorderStyle.Raised:
                        border |= NativeMethods.SBT_POPOUT; 
                        break;
                }
                switch (style) {
                    case StatusBarPanelStyle.Text: 
                        break;
                    case StatusBarPanelStyle.OwnerDraw: 
                        border |= NativeMethods.SBT_OWNERDRAW; 
                        break;
                } 


                int wparam = GetIndex() | border;
                if (parent.RightToLeft == RightToLeft.Yes) { 
                    wparam |= NativeMethods.SBT_RTLREADING;
                } 
 
                int result = (int) UnsafeNativeMethods.SendMessage(new HandleRef(parent, parent.Handle), NativeMethods.SB_SETTEXT, (IntPtr)wparam, sendText);
 
                if (result == 0)
                    throw new InvalidOperationException(SR.GetString(SR.UnableToSetPanelText));

                if (this.icon != null && style != StatusBarPanelStyle.OwnerDraw) { 
                    this.parent.SendMessage(NativeMethods.SB_SETICON, (IntPtr)GetIndex(), this.icon.Handle);
                } 
                else { 
                    this.parent.SendMessage(NativeMethods.SB_SETICON, (IntPtr)GetIndex(), IntPtr.Zero);
                } 

                if (style == StatusBarPanelStyle.OwnerDraw) {
                    NativeMethods.RECT rect = new NativeMethods.RECT();
                    result = (int) UnsafeNativeMethods.SendMessage(new HandleRef(parent, parent.Handle), NativeMethods.SB_GETRECT, (IntPtr)GetIndex(), ref rect); 

                    if (result != 0) { 
                        this.parent.Invalidate(Rectangle.FromLTRB(rect.left, rect.top, rect.right, rect.bottom)); 
                    }
                } 
            }
        }

        private void UpdateSize() { 
            if (this.autoSize == StatusBarPanelAutoSize.Contents) {
                ApplyContentSizing(); 
            } 
            else {
                if (Created) { 
                    parent.DirtyLayout();
                    parent.PerformLayout();
                }
            } 
        }
 
        private void ApplyContentSizing() { 
            if (this.autoSize == StatusBarPanelAutoSize.Contents &&
                parent != null) { 
                int newWidth = GetContentsWidth(false);
                if (newWidth != this.Width) {
                    this.Width = newWidth;
                    if (Created) { 
                        parent.DirtyLayout();
                        parent.PerformLayout(); 
                    } 
                }
            } 
        }

        /// 
        ///  
        ///    
        ///       Retrieves a string that contains information about the 
        ///       panel. 
        ///    
        ///  
        public override string ToString() {
            return "StatusBarPanel: {" + Text + "}";
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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