376 lines
10 KiB
C#
376 lines
10 KiB
C#
// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (c) 2005-2010 Novell, Inc. (http://www.novell.com)
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//
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// Authors:
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// Peter Dennis Bartok (pbartok@novell.com)
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//
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//
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using System.ComponentModel;
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using System.Security.Permissions;
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namespace System.Web.UI.WebControls
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{
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// CAS
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[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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// attributes
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[TypeConverter(typeof(System.ComponentModel.ExpandableObjectConverter))]
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public sealed class FontInfo
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{
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#region Fields
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static string[] empty_names = new string[0];
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StateBag bag;
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Style _owner;
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#endregion // Fields
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#region Constructors
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internal FontInfo(Style owner)
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{
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_owner = owner;
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this.bag = owner.ViewState;
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}
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#endregion // Constructors
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#region Public Instance Properties
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[DefaultValue(false)]
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[NotifyParentProperty(true)]
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[WebSysDescription ("")]
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[WebCategory ("Font")]
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public bool Bold {
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get {
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if (!_owner.CheckBit((int)Style.Styles.FontBold))
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return false;
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return bag.GetBool("Font_Bold", false);
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}
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set {
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bag["Font_Bold"] = value;
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_owner.SetBit ((int) Style.Styles.FontBold);
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}
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}
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[DefaultValue(false)]
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[NotifyParentProperty(true)]
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[WebSysDescription ("")]
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[WebCategory ("Font")]
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public bool Italic {
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get {
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if (!_owner.CheckBit ((int) Style.Styles.FontItalic))
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return false;
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return bag.GetBool("Font_Italic", false);
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}
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set {
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bag["Font_Italic"] = value;
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_owner.SetBit ((int) Style.Styles.FontItalic);
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}
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}
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[RefreshProperties (RefreshProperties.Repaint)]
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[DefaultValue("")]
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
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[Editor("System.Drawing.Design.FontNameEditor, " + Consts.AssemblySystem_Drawing_Design, typeof(System.Drawing.Design.UITypeEditor))]
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[NotifyParentProperty(true)]
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[TypeConverter (typeof(System.Drawing.FontConverter.FontNameConverter))]
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[WebSysDescription ("")]
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[WebCategory ("Font")]
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public string Name {
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get {
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string [] names = Names;
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if (names.Length == 0)
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return string.Empty;
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return names[0];
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}
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set {
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// Seems to be a special case in MS, removing the names from the bag when Name is set to empty,
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// but not when setting Names to an empty array
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if (value == string.Empty) {
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Names = null;
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return;
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}
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if (value == null)
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throw new ArgumentNullException("value", "Font name cannot be null");
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Names = new string[1] { value };
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}
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}
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[RefreshProperties (RefreshProperties.Repaint)]
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[Editor("System.Windows.Forms.Design.StringArrayEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
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[NotifyParentProperty(true)]
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[TypeConverter(typeof(System.Web.UI.WebControls.FontNamesConverter))]
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[WebSysDescription ("")]
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[WebCategory ("Font")]
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public string[] Names {
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get {
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string[] ret;
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if (!_owner.CheckBit ((int) Style.Styles.FontNames))
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return FontInfo.empty_names;
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ret = (string[])bag["Font_Names"];
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if (ret != null)
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return ret;
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return FontInfo.empty_names;
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}
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set {
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if (value == null) {
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bag.Remove ("Font_Names");
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_owner.RemoveBit ((int) Style.Styles.FontNames);
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} else {
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bag ["Font_Names"] = value;
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_owner.SetBit ((int) Style.Styles.FontNames);
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}
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}
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}
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[DefaultValue(false)]
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[NotifyParentProperty(true)]
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[WebSysDescription ("")]
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[WebCategory ("Font")]
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public bool Overline {
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get {
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if (!_owner.CheckBit ((int) Style.Styles.FontOverline))
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return false;
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return bag.GetBool("Font_Overline", false);
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}
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set {
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bag["Font_Overline"] = value;
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_owner.SetBit ((int) Style.Styles.FontOverline);
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}
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}
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[RefreshProperties (RefreshProperties.Repaint)]
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[DefaultValue(typeof (FontUnit), "")]
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[NotifyParentProperty(true)]
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[WebSysDescription ("")]
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[WebCategory ("Font")]
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public FontUnit Size {
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get {
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if (!_owner.CheckBit ((int) Style.Styles.FontSize))
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return FontUnit.Empty;
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return (FontUnit)bag["Font_Size"];
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}
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set {
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if (value.Unit.Value < 0)
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throw new ArgumentOutOfRangeException("Value", value.Unit.Value, "Font size cannot be negative");
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bag["Font_Size"] = value;
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_owner.SetBit ((int) Style.Styles.FontSize);
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}
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}
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[DefaultValue(false)]
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[NotifyParentProperty(true)]
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[WebSysDescription ("")]
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[WebCategory ("Font")]
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public bool Strikeout {
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get {
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if (!_owner.CheckBit ((int) Style.Styles.FontStrikeout))
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return false;
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return bag.GetBool("Font_Strikeout", false);
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}
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set {
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bag["Font_Strikeout"] = value;
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_owner.SetBit ((int) Style.Styles.FontStrikeout);
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}
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}
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[DefaultValue(false)]
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[NotifyParentProperty(true)]
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[WebSysDescription ("")]
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[WebCategory ("Font")]
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public bool Underline {
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get {
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if (!_owner.CheckBit ((int) Style.Styles.FontUnderline))
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return false;
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return bag.GetBool("Font_Underline", false);
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}
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set {
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bag["Font_Underline"] = value;
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_owner.SetBit ((int) Style.Styles.FontUnderline);
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}
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}
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#endregion // Public Instance Properties
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#region Public Instance Methods
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public void CopyFrom (FontInfo f)
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{
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if (f == null || f.IsEmpty)
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return;
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if (f == this)
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return;
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// MS stores the property in the bag if it's value is false
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if (f._owner.CheckBit((int) Style.Styles.FontBold))
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this.Bold = f.Bold;
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if (f._owner.CheckBit ((int) Style.Styles.FontItalic))
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this.Italic = f.Italic;
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// MS seems to have some weird behaviour, even if f's Name has been set to String.Empty we still get an empty array
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this.Names = f.Names;
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if (f._owner.CheckBit ((int) Style.Styles.FontOverline))
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this.Overline = f.Overline;
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if (f._owner.CheckBit ((int) Style.Styles.FontSize))
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this.Size = f.Size;
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if (f._owner.CheckBit ((int) Style.Styles.FontStrikeout))
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this.Strikeout = f.Strikeout;
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if (f._owner.CheckBit ((int) Style.Styles.FontUnderline))
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this.Underline = f.Underline;
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}
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public void MergeWith (FontInfo f)
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{
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if (!_owner.CheckBit ((int) Style.Styles.FontBold) && f._owner.CheckBit ((int) Style.Styles.FontBold))
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this.Bold = f.Bold;
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if (!_owner.CheckBit ((int) Style.Styles.FontItalic) && f._owner.CheckBit ((int) Style.Styles.FontItalic))
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this.Italic = f.Italic;
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if (!_owner.CheckBit ((int) Style.Styles.FontNames) && f._owner.CheckBit ((int) Style.Styles.FontNames))
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this.Names = f.Names;
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if (!_owner.CheckBit ((int) Style.Styles.FontOverline) && f._owner.CheckBit ((int) Style.Styles.FontOverline))
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this.Overline = f.Overline;
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if (!_owner.CheckBit ((int) Style.Styles.FontSize) && f._owner.CheckBit ((int) Style.Styles.FontSize))
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this.Size = f.Size;
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if (!_owner.CheckBit ((int) Style.Styles.FontStrikeout) && f._owner.CheckBit ((int) Style.Styles.FontStrikeout))
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this.Strikeout = f.Strikeout;
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if (!_owner.CheckBit ((int) Style.Styles.FontUnderline) && f._owner.CheckBit ((int) Style.Styles.FontUnderline))
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this.Underline = f.Underline;
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}
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public bool ShouldSerializeNames ()
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{
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return (Names.Length != 0);
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}
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public override string ToString ()
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{
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if (this.Names.Length == 0)
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return this.Size.ToString();
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return this.Name + ", " + this.Size.ToString();
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}
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public void ClearDefaults ()
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{
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Reset ();
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}
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#endregion // Public Instance Methods
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#region Private Methods
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internal void Reset()
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{
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bag.Remove("Font_Bold");
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bag.Remove("Font_Italic");
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bag.Remove("Font_Names");
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bag.Remove("Font_Overline");
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bag.Remove("Font_Size");
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bag.Remove("Font_Strikeout");
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bag.Remove("Font_Underline");
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_owner.RemoveBit ((int) Style.Styles.FontAll);
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}
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internal void FillStyleAttributes (CssStyleCollection attributes, bool alwaysRenderTextDecoration)
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{
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if (IsEmpty) {
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if(alwaysRenderTextDecoration)
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attributes.Add (HtmlTextWriterStyle.TextDecoration, "none");
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return;
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}
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string s;
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// Fonts are a bit weird
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s = String.Join (",", Names);
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if (s.Length > 0)
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attributes.Add (HtmlTextWriterStyle.FontFamily, s);
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if (_owner.CheckBit ((int) Style.Styles.FontBold))
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attributes.Add (HtmlTextWriterStyle.FontWeight, Bold ? "bold" : "normal");
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if (_owner.CheckBit ((int) Style.Styles.FontItalic))
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attributes.Add (HtmlTextWriterStyle.FontStyle, Italic ? "italic" : "normal");
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if (!Size.IsEmpty)
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attributes.Add (HtmlTextWriterStyle.FontSize, Size.ToString ());
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// These styles are munged into a attribute decoration
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s = String.Empty;
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bool hasTextDecoration = false;
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if (_owner.CheckBit ((int) Style.Styles.FontOverline)) {
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if (Overline)
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s += "overline ";
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hasTextDecoration = true;
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}
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if (_owner.CheckBit ((int) Style.Styles.FontStrikeout)) {
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if (Strikeout)
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s += "line-through ";
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hasTextDecoration = true;
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}
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if (_owner.CheckBit ((int) Style.Styles.FontUnderline)) {
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if (Underline)
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s += "underline ";
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hasTextDecoration = true;
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}
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s = (s.Length > 0) ? s.Trim () : (alwaysRenderTextDecoration || hasTextDecoration) ? "none" : String.Empty;
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if (s.Length > 0)
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attributes.Add (HtmlTextWriterStyle.TextDecoration, s);
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}
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#endregion // Private Methods
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bool IsEmpty {
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get { return !_owner.CheckBit ((int) Style.Styles.FontAll); }
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}
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}
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}
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