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//
// Image.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2013-2017 Jean-Philippe Bruyère
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
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, keepProps;
double opacity;
#region Public properties
[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 ();
}
}
[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]
public string Path {
get { return _pic == null ? "" : _pic.Path; }
set {
if (value == Path)
return;
try {
if (string.IsNullOrEmpty(value))
Picture = null;
else {
CrowMonitor.Enter(CurrentInterface.LayoutMutex, "load image");
LoadImage (value);
CrowMonitor.Exit(CurrentInterface.LayoutMutex);
}
} catch (Exception ex) {
Debug.WriteLine (ex.Message);
_pic = null;
}
NotifyValueChanged ("Path", Path);
}
}
[XmlAttributeAttribute]
public string SvgSub {
get { return _svgSub; }
set {
if (_svgSub == value)
return;
_svgSub = value;
RegisterForGraphicUpdate ();
}
}
[XmlAttributeAttribute]
public Picture Picture {
get { return _pic; }
set {
if (_pic == value)
return;
_pic = value;
NotifyValueChanged ("Picture", _pic);
RegisterForGraphicUpdate ();
}
}
[XmlAttributeAttribute()][DefaultValue(1.0)]
public virtual double Opacity {
get { return opacity; }
set {
if (opacity == value)
return;
opacity = value;
NotifyValueChanged ("Faded", opacity);
RegisterForRedraw ();
}
}
#endregion
#region CTOR
public Image () : base()
{
}
#endregion
#region Image Loading
public void LoadImage (string path)
{
Picture pic;
if (path.EndsWith (".svg", true, System.Globalization.CultureInfo.InvariantCulture))
pic = new SvgPicture ();
else
pic = new BmpPicture ();
pic.LoadImage (path);
pic.Scaled = scaled;
pic.KeepProportions = keepProps;
Picture = pic;
}
#endregion
#region GraphicObject overrides
protected override int measureRawSize (LayoutingType lt)
{
if (_pic == null)
return 2 * Margin;
//_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);
if (Opacity<1.0) {
gr.SetSourceRGBA (0.0, 0.0, 0.0, 1.0-Opacity);
gr.Operator = Operator.DestOut;
gr.Rectangle (ClientRectangle);
gr.Fill ();
gr.Operator = Operator.Over;
}
}
#endregion
}
}
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