Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / FontInfo.cs / 1305376 / FontInfo.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.ComponentModel.Design;
using System;
using System.ComponentModel;
using System.Collections;
using System.Drawing;
using System.Drawing.Design;
using System.Globalization;
using System.Web;
///
/// Represents the font properties for text. This class cannot be inherited.
///
[
TypeConverterAttribute(typeof(ExpandableObjectConverter))
]
public sealed class FontInfo {
private Style owner;
///
///
internal FontInfo(Style owner) {
this.owner = owner;
}
///
/// Indicates whether the text is bold.
///
[
WebCategory("Appearance"),
DefaultValue(false),
WebSysDescription(SR.FontInfo_Bold),
NotifyParentProperty(true)
]
public bool Bold {
get {
if (owner.IsSet(Style.PROP_FONT_BOLD)) {
return (bool)(owner.ViewState["Font_Bold"]);
}
return false;
}
set {
owner.ViewState["Font_Bold"] = value;
owner.SetBit(Style.PROP_FONT_BOLD);
}
}
///
/// Indicates whether the text is italic.
///
[
WebCategory("Appearance"),
DefaultValue(false),
WebSysDescription(SR.FontInfo_Italic),
NotifyParentProperty(true)
]
public bool Italic {
get {
if (owner.IsSet(Style.PROP_FONT_ITALIC)) {
return (bool)(owner.ViewState["Font_Italic"]);
}
return false;
}
set {
owner.ViewState["Font_Italic"] = value;
owner.SetBit(Style.PROP_FONT_ITALIC);
}
}
///
/// Indicates the name of the font.
///
[
Editor("System.Drawing.Design.FontNameEditor, " + AssemblyRef.SystemDrawingDesign, typeof(UITypeEditor)),
TypeConverterAttribute(typeof(FontConverter.FontNameConverter)),
WebCategory("Appearance"),
DefaultValue(""),
WebSysDescription(SR.FontInfo_Name),
NotifyParentProperty(true),
RefreshProperties(RefreshProperties.Repaint),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
public string Name {
get {
string[] names = Names;
if (names.Length > 0)
return names[0];
return String.Empty;
}
set {
if (value == null)
throw new ArgumentNullException("value");
if (value.Length == 0) {
Names = null;
}
else {
Names = new string[1] { value };
}
}
}
///
///
[
TypeConverterAttribute(typeof(FontNamesConverter)),
WebCategory("Appearance"),
Editor("System.Windows.Forms.Design.StringArrayEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
WebSysDescription(SR.FontInfo_Names),
RefreshProperties(RefreshProperties.Repaint),
NotifyParentProperty(true)
]
public string[] Names {
get {
if (owner.IsSet(Style.PROP_FONT_NAMES)) {
string[] names = (string[])owner.ViewState["Font_Names"];
if (names != null)
return names;
}
return new string[0];
}
set {
owner.ViewState["Font_Names"] = value;
owner.SetBit(Style.PROP_FONT_NAMES);
}
}
///
/// Indicates whether the text is overline.
///
[
WebCategory("Appearance"),
DefaultValue(false),
WebSysDescription(SR.FontInfo_Overline),
NotifyParentProperty(true)
]
public bool Overline {
get {
if (owner.IsSet(Style.PROP_FONT_OVERLINE)) {
return (bool)(owner.ViewState["Font_Overline"]);
}
return false;
}
set {
owner.ViewState["Font_Overline"] = value;
owner.SetBit(Style.PROP_FONT_OVERLINE);
}
}
///
///
internal Style Owner {
get {
return owner;
}
}
///
/// Indicates the font size.
///
[
WebCategory("Appearance"),
DefaultValue(typeof(FontUnit), ""),
WebSysDescription(SR.FontInfo_Size),
NotifyParentProperty(true),
RefreshProperties(RefreshProperties.Repaint)
]
public FontUnit Size {
get {
if (owner.IsSet(Style.PROP_FONT_SIZE)) {
return (FontUnit)(owner.ViewState["Font_Size"]);
}
return FontUnit.Empty;
}
set {
if ((value.Type == FontSize.AsUnit) && (value.Unit.Value < 0)) {
throw new ArgumentOutOfRangeException("value");
}
owner.ViewState["Font_Size"] = value;
owner.SetBit(Style.PROP_FONT_SIZE);
}
}
///
/// Indicates whether the text is striked out.
///
[
WebCategory("Appearance"),
DefaultValue(false),
WebSysDescription(SR.FontInfo_Strikeout),
NotifyParentProperty(true)
]
public bool Strikeout {
get {
if (owner.IsSet(Style.PROP_FONT_STRIKEOUT)) {
return (bool)(owner.ViewState["Font_Strikeout"]);
}
return false;
}
set {
owner.ViewState["Font_Strikeout"] = value;
owner.SetBit(Style.PROP_FONT_STRIKEOUT);
}
}
///
/// Indicates whether the text is underlined.
///
[
WebCategory("Appearance"),
DefaultValue(false),
WebSysDescription(SR.FontInfo_Underline),
NotifyParentProperty(true)
]
public bool Underline {
get {
if (owner.IsSet(Style.PROP_FONT_UNDERLINE)) {
return (bool)(owner.ViewState["Font_Underline"]);
}
return false;
}
set {
owner.ViewState["Font_Underline"] = value;
owner.SetBit(Style.PROP_FONT_UNDERLINE);
}
}
///
/// Resets all properties that have their default value to their unset state.
///
public void ClearDefaults() {
if (Names.Length == 0) {
owner.ViewState.Remove("Font_Names");
owner.ClearBit(Style.PROP_FONT_NAMES);
}
if (Size == FontUnit.Empty) {
owner.ViewState.Remove("Font_Size");
owner.ClearBit(Style.PROP_FONT_SIZE);
}
if (Bold == false)
ResetBold();
if (Italic == false)
ResetItalic();
if (Underline == false)
ResetUnderline();
if (Overline == false)
ResetOverline();
if (Strikeout == false)
ResetStrikeout();
}
///
/// Copies the font properties of another
///
public void CopyFrom(FontInfo f) {
if (f != null) {
Style fOwner = f.Owner;
if (fOwner.RegisteredCssClass.Length != 0) {
if (fOwner.IsSet(Style.PROP_FONT_NAMES))
ResetNames();
if (fOwner.IsSet(Style.PROP_FONT_SIZE) && (f.Size != FontUnit.Empty))
ResetFontSize();
if (fOwner.IsSet(Style.PROP_FONT_BOLD))
ResetBold();
if (fOwner.IsSet(Style.PROP_FONT_ITALIC))
ResetItalic();
if (fOwner.IsSet(Style.PROP_FONT_OVERLINE))
ResetOverline();
if (fOwner.IsSet(Style.PROP_FONT_STRIKEOUT))
ResetStrikeout();
if (fOwner.IsSet(Style.PROP_FONT_UNDERLINE))
ResetUnderline();
}
else {
if (fOwner.IsSet(Style.PROP_FONT_NAMES)) {
Names = f.Names;
}
if (fOwner.IsSet(Style.PROP_FONT_SIZE) && (f.Size != FontUnit.Empty))
Size = f.Size;
// Only carry through true boolean values. Otherwise merging and copying
// can do 3 different things for each property, but they are only persisted
// as 2 state values.
if (fOwner.IsSet(Style.PROP_FONT_BOLD))
Bold = f.Bold;
if (fOwner.IsSet(Style.PROP_FONT_ITALIC))
Italic = f.Italic;
if (fOwner.IsSet(Style.PROP_FONT_OVERLINE))
Overline = f.Overline;
if (fOwner.IsSet(Style.PROP_FONT_STRIKEOUT))
Strikeout = f.Strikeout;
if (fOwner.IsSet(Style.PROP_FONT_UNDERLINE))
Underline = f.Underline;
}
}
}
///
/// Combines the font properties of another
///
public void MergeWith(FontInfo f) {
if (f != null) {
Style fOwner = f.Owner;
if (fOwner.RegisteredCssClass.Length == 0) {
if (fOwner.IsSet(Style.PROP_FONT_NAMES) && !owner.IsSet(Style.PROP_FONT_NAMES))
Names = f.Names;
if (fOwner.IsSet(Style.PROP_FONT_SIZE) && (!owner.IsSet(Style.PROP_FONT_SIZE) || (Size == FontUnit.Empty)))
Size = f.Size;
if (fOwner.IsSet(Style.PROP_FONT_BOLD) && !owner.IsSet(Style.PROP_FONT_BOLD))
Bold = f.Bold;
if (fOwner.IsSet(Style.PROP_FONT_ITALIC) && !owner.IsSet(Style.PROP_FONT_ITALIC))
Italic = f.Italic;
if (fOwner.IsSet(Style.PROP_FONT_OVERLINE) && !owner.IsSet(Style.PROP_FONT_OVERLINE))
Overline = f.Overline;
if (fOwner.IsSet(Style.PROP_FONT_STRIKEOUT) && !owner.IsSet(Style.PROP_FONT_STRIKEOUT))
Strikeout = f.Strikeout;
if (fOwner.IsSet(Style.PROP_FONT_UNDERLINE) && !owner.IsSet(Style.PROP_FONT_UNDERLINE))
Underline = f.Underline;
}
}
}
///
/// Resets all properties to their defaults.
///
internal void Reset() {
if (owner.IsSet(Style.PROP_FONT_NAMES))
ResetNames();
if (owner.IsSet(Style.PROP_FONT_SIZE))
ResetFontSize();
if (owner.IsSet(Style.PROP_FONT_BOLD))
ResetBold();
if (owner.IsSet(Style.PROP_FONT_ITALIC))
ResetItalic();
if (owner.IsSet(Style.PROP_FONT_UNDERLINE))
ResetUnderline();
if (owner.IsSet(Style.PROP_FONT_OVERLINE))
ResetOverline();
if (owner.IsSet(Style.PROP_FONT_STRIKEOUT))
ResetStrikeout();
}
///
/// Only serialize if the Bold property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private void ResetBold() {
owner.ViewState.Remove("Font_Bold");
owner.ClearBit(Style.PROP_FONT_BOLD);
}
private void ResetNames() {
owner.ViewState.Remove("Font_Names");
owner.ClearBit(Style.PROP_FONT_NAMES);
}
private void ResetFontSize() {
owner.ViewState.Remove("Font_Size");
owner.ClearBit(Style.PROP_FONT_SIZE);
}
///
/// Only serialize if the Italic property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private void ResetItalic() {
owner.ViewState.Remove("Font_Italic");
owner.ClearBit(Style.PROP_FONT_ITALIC);
}
///
/// Only serialize if the Overline property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private void ResetOverline() {
owner.ViewState.Remove("Font_Overline");
owner.ClearBit(Style.PROP_FONT_OVERLINE);
}
///
/// Only serialize if the Strikeout property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private void ResetStrikeout() {
owner.ViewState.Remove("Font_Strikeout");
owner.ClearBit(Style.PROP_FONT_STRIKEOUT);
}
///
/// Only serialize if the Underline property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private void ResetUnderline() {
owner.ViewState.Remove("Font_Underline");
owner.ClearBit(Style.PROP_FONT_UNDERLINE);
}
///
/// Only serialize if the Bold property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private bool ShouldSerializeBold() {
return owner.IsSet(Style.PROP_FONT_BOLD);
}
///
/// Only serialize if the Italic property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private bool ShouldSerializeItalic() {
return owner.IsSet(Style.PROP_FONT_ITALIC);
}
///
/// Only serialize if the Overline property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private bool ShouldSerializeOverline() {
return owner.IsSet(Style.PROP_FONT_OVERLINE);
}
///
/// Only serialize if the Strikeout property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private bool ShouldSerializeStrikeout() {
return owner.IsSet(Style.PROP_FONT_STRIKEOUT);
}
///
/// Only serialize if the Underline property has changed. This means that we serialize "false"
/// if they were set to false in the designer.
///
private bool ShouldSerializeUnderline() {
return owner.IsSet(Style.PROP_FONT_UNDERLINE);
}
///
///
public override string ToString() {
string size = this.Size.ToString(CultureInfo.InvariantCulture);
string s = this.Name;
if (size.Length != 0) {
if (s.Length != 0) {
s += ", " + size;
}
else {
s = size;
}
}
return s;
}
}
}
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