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//------------------------------------------------------------------------------
// <copyright file="PanelStyle.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System;
using System.Collections;
using System.ComponentModel;
using System.Globalization;
using System.Reflection;
using System.Web;
using System.Web.UI;
/// <devdoc>
/// <para>Specifies the style of the panel.</para>
/// </devdoc>
public class PanelStyle : Style {
// !!NOTE!!
// Style.cs also defines a set of flag contants and both sets have to
// be unique. Please be careful when adding new flags to either list.
private const int PROP_BACKIMAGEURL = 0x00010000;
private const int PROP_DIRECTION = 0x00020000;
private const int PROP_HORIZONTALALIGN = 0x00040000;
private const int PROP_SCROLLBARS = 0x00080000;
private const int PROP_WRAP = 0x00100000;
private const string STR_BACKIMAGEURL = "BackImageUrl";
private const string STR_DIRECTION = "Direction";
private const string STR_HORIZONTALALIGN = "HorizontalAlign";
private const string STR_SCROLLBARS = "ScrollBars";
private const string STR_WRAP = "Wrap";
/// <devdoc>
/// <para>
/// Initializes a new instance of the <see cref='System.Web.UI.WebControls.PanelStyle'/>
/// class with state bag information.
/// </para>
/// </devdoc>
public PanelStyle(StateBag bag) : base (bag) {
}
/// <devdoc>
/// <para>Gets or sets the URL of the background image for the panel.</para>
/// </devdoc>
[
WebCategory("Appearance"),
DefaultValue(""),
UrlProperty(),
WebSysDescription(SR.Panel_BackImageUrl)
]
public virtual string BackImageUrl {
get {
if (IsSet(PROP_BACKIMAGEURL)) {
return(string)(ViewState[STR_BACKIMAGEURL]);
}
return String.Empty;
}
set {
if (value == null) {
throw new ArgumentNullException("value");
}
ViewState[STR_BACKIMAGEURL] = value;
SetBit(PROP_BACKIMAGEURL);
}
}
/// <devdoc>
/// <para>Gets or sets content direction for the panel.</para>
/// </devdoc>
[
WebCategory("Appearance"),
DefaultValue(""),
WebSysDescription(SR.Panel_Direction)
]
public virtual ContentDirection Direction {
get {
if (IsSet(PROP_DIRECTION)) {
return (ContentDirection)(ViewState[STR_DIRECTION]);
}
return ContentDirection.NotSet;
}
set {
if (value < ContentDirection.NotSet || value > ContentDirection.RightToLeft) {
throw new ArgumentOutOfRangeException("value");
}
ViewState[STR_DIRECTION] = value;
SetBit(PROP_DIRECTION);
}
}
/// <devdoc>
/// <para>Gets or sets the horizontal alignment of the contents within the panel.</para>
/// </devdoc>
[
WebCategory("Appearance"),
DefaultValue(""),
WebSysDescription(SR.Panel_HorizontalAlign)
]
public virtual HorizontalAlign HorizontalAlign {
get {
if (IsSet(PROP_HORIZONTALALIGN)) {
return (HorizontalAlign)(ViewState[STR_HORIZONTALALIGN]);
}
return HorizontalAlign.NotSet;
}
set {
if (value < HorizontalAlign.NotSet || value > HorizontalAlign.Justify) {
throw new ArgumentOutOfRangeException("value");
}
ViewState[STR_HORIZONTALALIGN] = value;
SetBit(PROP_HORIZONTALALIGN);
}
}
/// <devdoc>
/// <para>Gets or sets the scrollbar behavior of the panel.</para>
/// </devdoc>
[
WebCategory("Appearance"),
DefaultValue(""),
WebSysDescription(SR.Panel_ScrollBars)
]
public virtual ScrollBars ScrollBars {
get {
if (IsSet(PROP_SCROLLBARS)) {
return (ScrollBars)(ViewState[STR_SCROLLBARS]);
}
return ScrollBars.None;
}
set {
if (value < ScrollBars.None || value > ScrollBars.Auto) {
throw new ArgumentOutOfRangeException("value");
}
ViewState[STR_SCROLLBARS] = value;
SetBit(PROP_SCROLLBARS);
}
}
/// <devdoc>
/// <para>Gets or sets a value
/// indicating whether the content wraps within the panel.</para>
/// </devdoc>
[
WebCategory("Appearance"),
DefaultValue(""),
WebSysDescription(SR.Panel_Wrap)
]
public virtual bool Wrap {
get {
if (IsSet(PROP_WRAP)) {
return (bool)(ViewState[STR_WRAP]);
}
return true;
}
set {
ViewState[STR_WRAP] = value;
SetBit(PROP_WRAP);
}
}
/// <internalonly/>
/// <devdoc>
/// <para>Copies non-blank elements from the specified style, overwriting existing
/// style elements if necessary.</para>
/// </devdoc>
public override void CopyFrom(Style s) {
if (s != null && !s.IsEmpty) {
base.CopyFrom(s);
if (s is PanelStyle) {
PanelStyle ts = (PanelStyle)s;
if (s.RegisteredCssClass.Length != 0) {
if (ts.IsSet(PROP_BACKIMAGEURL)) {
ViewState.Remove(STR_BACKIMAGEURL);
ClearBit(PROP_BACKIMAGEURL);
}
if (ts.IsSet(PROP_SCROLLBARS)) {
ViewState.Remove(STR_SCROLLBARS);
ClearBit(PROP_SCROLLBARS);
}
if (ts.IsSet(PROP_WRAP)) {
ViewState.Remove(STR_WRAP);
ClearBit(PROP_WRAP);
}
}
else {
if (ts.IsSet(PROP_BACKIMAGEURL))
this.BackImageUrl = ts.BackImageUrl;
if (ts.IsSet(PROP_SCROLLBARS))
this.ScrollBars = ts.ScrollBars;
if (ts.IsSet(PROP_WRAP))
this.Wrap = ts.Wrap;
}
if (ts.IsSet(PROP_DIRECTION))
this.Direction = ts.Direction;
if (ts.IsSet(PROP_HORIZONTALALIGN))
this.HorizontalAlign = ts.HorizontalAlign;
}
}
}
/// <internalonly/>
/// <devdoc>
/// <para>Copies non-blank elements from the specified style, but will not overwrite
/// any existing style elements.</para>
/// </devdoc>
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 PanelStyle) {
PanelStyle ts = (PanelStyle)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 (ts.IsSet(PROP_BACKIMAGEURL) && !this.IsSet(PROP_BACKIMAGEURL))
this.BackImageUrl = ts.BackImageUrl;
if (ts.IsSet(PROP_SCROLLBARS) && !this.IsSet(PROP_SCROLLBARS))
this.ScrollBars = ts.ScrollBars;
if (ts.IsSet(PROP_WRAP) && !this.IsSet(PROP_WRAP))
this.Wrap = ts.Wrap;
}
if (ts.IsSet(PROP_DIRECTION) && !this.IsSet(PROP_DIRECTION))
this.Direction = ts.Direction;
if (ts.IsSet(PROP_HORIZONTALALIGN) && !this.IsSet(PROP_HORIZONTALALIGN))
this.HorizontalAlign = ts.HorizontalAlign;
}
}
}
/// <internalonly/>
/// <devdoc>
/// <para>Clears out any defined style elements from the state bag.</para>
/// </devdoc>
public override void Reset() {
if (IsSet(PROP_BACKIMAGEURL))
ViewState.Remove(STR_BACKIMAGEURL);
if (IsSet(PROP_DIRECTION))
ViewState.Remove(STR_DIRECTION);
if (IsSet(PROP_HORIZONTALALIGN))
ViewState.Remove(STR_HORIZONTALALIGN);
if (IsSet(PROP_SCROLLBARS))
ViewState.Remove(STR_SCROLLBARS);
if (IsSet(PROP_WRAP))
ViewState.Remove(STR_WRAP);
base.Reset();
}
}
}
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