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//------------------------------------------------------------------------------
// <copyright file="WebPartMenuStyle.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
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;
/// <devdoc>
/// </devdoc>
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;
}
/// <devdoc>
/// </devdoc>
[
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);
}
}
/// <devdoc>
/// </devdoc>
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
EditorBrowsable(EditorBrowsableState.Never)
]
public override HorizontalAlign HorizontalAlign {
get {
return base.HorizontalAlign;
}
set {
}
}
/// <internalonly/>
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);
}
}
/// <internalonly/>
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;
}
}
}
}
}
/// <internalonly/>
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;
}
}
}
}
/// <internalonly/>
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
}
}
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