WebPartMenuStyle.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebParts / WebPartMenuStyle.cs / 1305376 / WebPartMenuStyle.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI.WebControls.WebParts { 
 
    using System;
    using System.Collections; 
    using System.ComponentModel;
    using System.Drawing;
    using System.Globalization;
    using System.Web; 
    using System.Web.UI;
    using System.Web.UI.WebControls; 
 
    /// 
    ///  
    public sealed class WebPartMenuStyle : TableStyle, ICustomTypeDescriptor {

        private const int PROP_SHADOWCOLOR = 0x00200000;
 
        public WebPartMenuStyle() : this(null) {
        } 
 
        public WebPartMenuStyle(StateBag bag) : base(bag) {
            CellPadding = 1; 
            CellSpacing = 0;
        }

        ///  
        /// 
        [ 
        WebCategory("Appearance"), 
        DefaultValue(typeof(Color), ""),
        TypeConverterAttribute(typeof(WebColorConverter)), 
        WebSysDescription(SR.WebPartMenuStyle_ShadowColor)
        ]
        public Color ShadowColor {
            get { 
                if (IsSet(PROP_SHADOWCOLOR)) {
                    return (Color)(ViewState["ShadowColor"]); 
                } 
                return Color.Empty;
            } 
            set {
                ViewState["ShadowColor"] = value;
                SetBit(PROP_SHADOWCOLOR);
            } 
        }
 
        ///  
        /// 
        [ 
        Browsable(false),
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
        EditorBrowsable(EditorBrowsableState.Never)
        ] 
        public override HorizontalAlign HorizontalAlign {
            get { 
                return base.HorizontalAlign; 
            }
            set { 
            }
        }

        ///  
        protected override void FillStyleAttributes(CssStyleCollection attributes, IUrlResolutionService urlResolver) {
            base.FillStyleAttributes(attributes, urlResolver); 
 
            Color shadowColor = ShadowColor;
            if (shadowColor.IsEmpty == false) { 
                string colorValue = ColorTranslator.ToHtml(shadowColor);
                string filterValue = "progid:DXImageTransform.Microsoft.Shadow(color='" + colorValue + "', Direction=135, Strength=3)";

                attributes.Add(HtmlTextWriterStyle.Filter, filterValue); 
            }
        } 
 
        /// 
        public override void CopyFrom(Style s) { 
            if (s != null && !s.IsEmpty) {
                base.CopyFrom(s);

                if (s is WebPartMenuStyle) { 
                    WebPartMenuStyle ms = (WebPartMenuStyle)s;
 
                    // Only copy the BackImageUrl if it isn't in the source Style's registered CSS class 
                    if (s.RegisteredCssClass.Length != 0) {
                        if (ms.IsSet(PROP_SHADOWCOLOR)) { 
                            ViewState.Remove("ShadowColor");
                            ClearBit(PROP_SHADOWCOLOR);
                        }
                    } 
                    else {
                        if (ms.IsSet(PROP_SHADOWCOLOR)) { 
                            this.ShadowColor = ms.ShadowColor; 
                        }
                    } 
                }
            }
        }
 
        /// 
        public override void MergeWith(Style s) { 
            if (s != null && !s.IsEmpty) { 
                if (IsEmpty) {
                    // merge into an empty style is equivalent to a copy, 
                    // which is more efficient
                    CopyFrom(s);
                    return;
                } 

                base.MergeWith(s); 
 
                if (s is WebPartMenuStyle) {
                    WebPartMenuStyle ms = (WebPartMenuStyle)s; 

                    // Since we're already copying the registered CSS class in base.MergeWith, we don't
                    // need to any attributes that would be included in that class.
                    if (s.RegisteredCssClass.Length == 0) { 
                        if (ms.IsSet(PROP_SHADOWCOLOR) && !this.IsSet(PROP_SHADOWCOLOR))
                            this.ShadowColor = ms.ShadowColor; 
                    } 
                }
            } 
        }

        /// 
        public override void Reset() { 
            if (IsSet(PROP_SHADOWCOLOR)) {
                ViewState.Remove("ShadowColor"); 
            } 

            base.Reset(); 
        }

        #region ICustomTypeDesciptor implementation
        System.ComponentModel.AttributeCollection ICustomTypeDescriptor.GetAttributes() { 
            return TypeDescriptor.GetAttributes(this, true);
        } 
 
        string ICustomTypeDescriptor.GetClassName() {
            return TypeDescriptor.GetClassName(this, true); 
        }

        string ICustomTypeDescriptor.GetComponentName() {
            return TypeDescriptor.GetComponentName(this, true); 
        }
 
        TypeConverter ICustomTypeDescriptor.GetConverter() { 
            return TypeDescriptor.GetConverter(this, true);
        } 

        EventDescriptor ICustomTypeDescriptor.GetDefaultEvent() {
            return TypeDescriptor.GetDefaultEvent(this, true);
        } 

        PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty() { 
            return TypeDescriptor.GetDefaultProperty(this, true); 
        }
 
        object ICustomTypeDescriptor.GetEditor(Type editorBaseType) {
            return TypeDescriptor.GetEditor(this, editorBaseType, true);
        }
 
        EventDescriptorCollection ICustomTypeDescriptor.GetEvents() {
            return TypeDescriptor.GetEvents(this, true); 
        } 

        EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes) { 
            return TypeDescriptor.GetEvents(this, attributes, true);
        }

        PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties() { 
            return ((ICustomTypeDescriptor)this).GetProperties(null);
        } 
 
        PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes) {
            PropertyDescriptorCollection oldProperties = TypeDescriptor.GetProperties(GetType(), attributes); 
            PropertyDescriptor[] newProperties = new PropertyDescriptor[oldProperties.Count];

            PropertyDescriptor oldPaddingProperty = oldProperties["CellPadding"];
            PropertyDescriptor newPaddingProperty = 
                TypeDescriptor.CreateProperty(GetType(), oldPaddingProperty, new DefaultValueAttribute(1));
 
            PropertyDescriptor oldSpacingProperty = oldProperties["CellSpacing"]; 
            PropertyDescriptor newSpacingProperty =
                TypeDescriptor.CreateProperty(GetType(), oldSpacingProperty, new DefaultValueAttribute(0)); 

            PropertyDescriptor oldFontProperty = oldProperties["Font"];
            PropertyDescriptor newFontProperty =
                TypeDescriptor.CreateProperty(GetType(), oldFontProperty, 
                    new BrowsableAttribute(false),
                    new ThemeableAttribute(false), 
                    new EditorBrowsableAttribute(EditorBrowsableState.Never)); 

            PropertyDescriptor oldForeColorProperty = oldProperties["ForeColor"]; 
            PropertyDescriptor newForeColorProperty =
                TypeDescriptor.CreateProperty(GetType(), oldForeColorProperty,
                    new BrowsableAttribute(false),
                    new ThemeableAttribute(false), 
                    new EditorBrowsableAttribute(EditorBrowsableState.Never));
 
            for (int i = 0; i < oldProperties.Count; i++) { 
                PropertyDescriptor property = oldProperties[i];
                if (property == oldPaddingProperty) { 
                    newProperties[i] = newPaddingProperty;
                }
                else if (property == oldSpacingProperty) {
                    newProperties[i] = newSpacingProperty; 
                }
                else if (property == oldFontProperty) { 
                    newProperties[i] = newFontProperty; 
                }
                else if (property == oldForeColorProperty) { 
                    newProperties[i] = newForeColorProperty;
                }
                else {
                    newProperties[i] = property; 
                }
            } 
 
            return new PropertyDescriptorCollection(newProperties, true);
        } 

        object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd) {
            return this;
        } 
        #endregion //ICustomTypeDescriptor implementation
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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WebPartMenuStyle.cs source code in C# .NET

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