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using System;
using Cairo;
using System.Xml.Serialization;
using System.ComponentModel;
using System.Diagnostics;
namespace Crow
{
public class Image : GraphicObject
{
Picture _pic;
string _svgSub;
bool scaled;
[XmlAttributeAttribute()][DefaultValue(true)]
public virtual bool Scaled {
get { return scaled; }
set {
if (scaled == value)
return;
scaled = value;
NotifyValueChanged ("Scaled", scaled);
if (_pic == null)
return;
_pic.Scaled = scaled;
RegisterForGraphicUpdate ();
}
}
bool keepProps;
[XmlAttributeAttribute()][DefaultValue(true)]
public virtual bool KeepProportions {
get { return keepProps; }
set {
if (keepProps == value)
return;
keepProps = value;
NotifyValueChanged ("KeepProportions", keepProps);
if (_pic == null)
return;
_pic.KeepProportions = keepProps;
RegisterForGraphicUpdate ();
}
}
[XmlAttributeAttribute("Path")]
public string Path {
get { return _pic == null ? null : _pic.Path; }
set {
try {
if (string.IsNullOrEmpty(value)){
_pic = null;
return;
}
LoadImage (value);
_pic.Scaled = scaled;
_pic.KeepProportions = keepProps;
} catch (Exception ex) {
Debug.WriteLine (ex.Message);
_pic = null;
}
}
}
[XmlAttributeAttribute()][DefaultValue(null)]
public string SvgSub {
get { return _svgSub; }
set {
_svgSub = value;
RegisterForGraphicUpdate ();
}
}
#region CTOR
public Image () : base()
{
}
#endregion
#region Image Loading
public void LoadImage (string path)
{
if (path.EndsWith (".svg", true, System.Globalization.CultureInfo.InvariantCulture))
_pic = new SvgPicture ();
else
_pic = new BmpPicture ();
_pic.LoadImage (path);
RegisterForGraphicUpdate ();
RegisterForLayouting (LayoutingType.Sizing);
}
#endregion
#region GraphicObject overrides
protected override int measureRawSize (LayoutingType lt)
{
if (_pic == null)
_pic = "#Crow.Images.Icons.IconAlerte.svg";
//TODO:take scalling in account
if (lt == LayoutingType.Width)
return _pic.Dimensions.Width + 2 * Margin;
else
return _pic.Dimensions.Height + 2 * Margin;
}
protected override void onDraw (Context gr)
{
base.onDraw (gr);
if (_pic == null)
return;
_pic.Paint (gr, ClientRectangle, _svgSub);
}
#endregion
}
}
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