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/**
* Namespace: System.Web.UI.WebControls
* Class: TableStyle
*
* Author: Gaurav Vaish
* Maintainer: gvaish@iitk.ac.in
* Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>
* Implementation: yes
* Status: 100%
*
* (C) Gaurav Vaish (2002)
*/
using System;
using System.Globalization;
using System.Web;
using System.Web.UI;
namespace System.Web.UI.WebControls
{
public class TableStyle : Style
{
private static int IMAGE_URL = (0x01 << 16);
private static int CELL_PADD = (0x01 << 17);
private static int CELL_SPAC = (0x01 << 18);
private static int GRID_LINE = (0x01 << 19);
private static int HOR_ALIGN = (0x01 << 20);
public TableStyle(): base()
{
}
public TableStyle(StateBag bag): base(bag)
{
}
public virtual string BackImageUrl
{
get
{
if(IsSet(IMAGE_URL))
return (string)(ViewState["BackImageUrl"]);
return String.Empty;
}
set
{
if(value == null)
throw new ArgumentNullException("BackImageUrl");
ViewState["BackImageUrl"] = value;
Set(IMAGE_URL);
}
}
public virtual int CellPadding
{
get
{
if(IsSet(CELL_PADD))
return (int)(ViewState["CellPadding"]);
return -1;
}
set
{
if(value < -1)
throw new ArgumentOutOfRangeException("CellPadding");
ViewState["CellPadding"] = value;
Set(CELL_PADD);
}
}
public virtual int CellSpacing
{
get
{
if(IsSet(CELL_SPAC))
return (int)(ViewState["CellSpacing"]);
return -1;
}
set
{
if(value < -1)
throw new ArgumentOutOfRangeException("CellSpacing");
ViewState["CellSpacing"] = value;
Set(CELL_SPAC);
}
}
public virtual GridLines GridLines
{
get
{
if(IsSet(GRID_LINE))
return (GridLines)(ViewState["GridLines"]);
return GridLines.None;
}
set
{
if(!Enum.IsDefined(typeof(GridLines), value))
throw new ArgumentException();
ViewState["GridLines"] = value;
Set(GRID_LINE);
}
}
public virtual HorizontalAlign HorizontalAlign
{
get
{
if(IsSet(HOR_ALIGN))
return (HorizontalAlign)(ViewState["HorizontalAlign"]);
return HorizontalAlign.NotSet;
}
set
{
if(!Enum.IsDefined(typeof(HorizontalAlign), value))
throw new ArgumentException();
ViewState["HorizontalAlign"] = value;
Set(HOR_ALIGN);
}
}
public override void AddAttributesToRender(HtmlTextWriter writer, WebControl owner)
{
base.AddAttributesToRender(writer, owner);
if(BackImageUrl.Length > 0)
{
writer.AddStyleAttribute(HtmlTextWriterStyle.BackgroundImage, "url(" + owner.ResolveUrl(BackImageUrl) + ")");
}
if(CellSpacing >= 0)
{
writer.AddAttribute(HtmlTextWriterAttribute.Cellspacing, CellSpacing.ToString(NumberFormatInfo.InvariantInfo));
}
if(CellPadding >= 0)
{
writer.AddAttribute(HtmlTextWriterAttribute.Cellpadding, CellPadding.ToString(NumberFormatInfo.InvariantInfo));
}
if(HorizontalAlign != HorizontalAlign.NotSet)
{
writer.AddAttribute(HtmlTextWriterAttribute.Align, Enum.Format(typeof(HorizontalAlign), HorizontalAlign, "G"));
}
string gd = "";
switch(GridLines)
{
case GridLines.None: gd = "";
break;
case GridLines.Horizontal: gd = "cols";
break;
case GridLines.Vertical: gd = "rows";
break;
case GridLines.Both: gd = "all";
break;
}
writer.AddAttribute(HtmlTextWriterAttribute.Rules, gd);
}
public override void CopyFrom(Style s)
{
if(s != null && s is TableStyle && !s.IsEmpty)
{
base.CopyFrom(s);
TableStyle from = (TableStyle)s;
if(from.IsSet(HOR_ALIGN))
{
HorizontalAlign = from.HorizontalAlign;
}
if(from.IsSet(IMAGE_URL))
{
BackImageUrl = from.BackImageUrl;
}
if(from.IsSet(CELL_PADD))
{
CellPadding = from.CellPadding;
}
if(from.IsSet(CELL_SPAC))
{
CellSpacing = from.CellSpacing;
}
if(from.IsSet(GRID_LINE))
{
GridLines = from.GridLines;
}
}
}
public override void MergeWith(Style s)
{
if(s != null && s is TableStyle && !s.IsEmpty)
{
base.MergeWith(s);
TableStyle with = (TableStyle)s;
if(with.IsSet(HOR_ALIGN) && IsSet(HOR_ALIGN))
{
HorizontalAlign = with.HorizontalAlign;
}
if(with.IsSet(IMAGE_URL) && IsSet(IMAGE_URL))
{
BackImageUrl = with.BackImageUrl;
}
if(with.IsSet(CELL_PADD) && IsSet(CELL_PADD))
{
CellPadding = with.CellPadding;
}
if(with.IsSet(CELL_SPAC) && IsSet(CELL_SPAC))
{
CellSpacing = with.CellSpacing;
}
if(with.IsSet(GRID_LINE) && IsSet(GRID_LINE))
{
GridLines = with.GridLines;
}
}
}
public override void Reset()
{
if(IsSet(IMAGE_URL))
ViewState.Remove("BackImageUrl");
if(IsSet(HOR_ALIGN))
ViewState.Remove("HorizontalAlign");
if(IsSet(CELL_PADD))
ViewState.Remove("CellPadding");
if(IsSet(CELL_SPAC))
ViewState.Remove("CellSpacing");
if(IsSet(GRID_LINE))
ViewState.Remove("GridLines");
base.Reset();
}
}
}
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