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//------------------------------------------------------------------------------
// <copyright file="TreeNode.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Design;
using System.Globalization;
using System.Text;
using System.Web.UI;
using System.Web.Util;
// This class renders selectively attributes from the owner class, filtering out anything not font or forecolor
internal sealed class HyperLinkStyle : Style {
private bool _doNotRenderDefaults = false;
private Style _owner; // This is a style because of the newed IsSet (we need the Style.IsSet, not the new one)
public HyperLinkStyle(Style owner) {
_owner = owner;
}
public bool DoNotRenderDefaults {
get {
return _doNotRenderDefaults;
}
set {
_doNotRenderDefaults = value;
}
}
public sealed override bool IsEmpty {
get {
return (RegisteredCssClass.Length == 0) &&
!(_owner.IsSet(PROP_CSSCLASS) ||
_owner.IsSet(PROP_FORECOLOR) ||
_owner.IsSet(PROP_FONT_NAMES) ||
_owner.IsSet(PROP_FONT_SIZE) ||
_owner.IsSet(PROP_FONT_BOLD) ||
_owner.IsSet(PROP_FONT_ITALIC) ||
_owner.IsSet(PROP_FONT_UNDERLINE) ||
_owner.IsSet(PROP_FONT_OVERLINE) ||
_owner.IsSet(PROP_FONT_STRIKEOUT));
}
}
public sealed override void AddAttributesToRender(HtmlTextWriter writer, WebControl owner) {
string cssClass = String.Empty;
bool renderInlineStyle = true;
if (_owner.IsSet(PROP_CSSCLASS)) {
cssClass = _owner.CssClass;
}
if (RegisteredCssClass.Length != 0) {
renderInlineStyle = false;
if (cssClass.Length != 0) {
cssClass = cssClass + " " + RegisteredCssClass;
}
else {
cssClass = RegisteredCssClass;
}
}
if (cssClass.Length > 0) {
writer.AddAttribute(HtmlTextWriterAttribute.Class, cssClass);
}
if (renderInlineStyle) {
CssStyleCollection styleAttributes = GetStyleAttributes(owner);
styleAttributes.Render(writer);
}
}
protected override sealed void FillStyleAttributes(CssStyleCollection attributes, IUrlResolutionService urlResolver) {
Debug.Assert(_owner != null);
StateBag viewState = ViewState;
Color c;
// ForeColor
if (_owner.IsSet(PROP_FORECOLOR)) {
c = _owner.ForeColor;
if (!c.IsEmpty) {
attributes.Add(HtmlTextWriterStyle.Color, ColorTranslator.ToHtml(c));
}
}
// Not defaulting to black anymore for not entirely satisfying but reasonable reasons (VSWhidbey 356729)
// need to call the property get in case we have font properties from view state and have not
// created the font object
FontInfo font = _owner.Font;
// Font.Names
string[] names = font.Names;
if (names.Length > 0) {
attributes.Add(HtmlTextWriterStyle.FontFamily, String.Join(",", names));
}
// Font.Size
FontUnit fu = font.Size;
if (fu.IsEmpty == false) {
attributes.Add(HtmlTextWriterStyle.FontSize, fu.ToString(CultureInfo.InvariantCulture));
}
// Font.Bold
if (_owner.IsSet(PROP_FONT_BOLD)) {
if (font.Bold) {
attributes.Add(HtmlTextWriterStyle.FontWeight, "bold");
}
else {
attributes.Add(HtmlTextWriterStyle.FontWeight, "normal");
}
}
// Font.Italic
if (_owner.IsSet(PROP_FONT_ITALIC)) {
if (font.Italic == true) {
attributes.Add(HtmlTextWriterStyle.FontStyle, "italic");
}
else {
attributes.Add(HtmlTextWriterStyle.FontStyle, "normal");
}
}
string textDecoration = String.Empty;
if (font.Underline) {
textDecoration = "underline";
}
if (font.Overline) {
textDecoration += " overline";
}
if (font.Strikeout) {
textDecoration += " line-through";
}
if (textDecoration.Length > 0) {
attributes.Add(HtmlTextWriterStyle.TextDecoration, textDecoration);
}
else {
if (!DoNotRenderDefaults) {
attributes.Add(HtmlTextWriterStyle.TextDecoration, "none");
}
}
// Removing the border with an inline style if the class name was set
if (_owner.IsSet(PROP_CSSCLASS)) {
attributes.Add(HtmlTextWriterStyle.BorderStyle, "none");
}
}
}
}
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