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//
// TemplatedControl.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2015 jp
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Xml.Serialization;
using System.ComponentModel;
using System.IO;
using System.Xml;
using System.Diagnostics;
using System.Linq;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
namespace Crow
{
public abstract class TemplatedControl : PrivateContainer, IXmlSerializable
{
#region CTOR
public TemplatedControl () : base()
{
}
#endregion
internal protected override void initialize ()
{
loadTemplate ();
base.initialize ();
}
string _template;
[XmlAttributeAttribute][DefaultValue(null)]
public string Template {
get { return _template; }
set {
if (Template == value)
return;
_template = value;
if (string.IsNullOrEmpty(_template))
loadTemplate ();
else
loadTemplate (CurrentInterface.Load (_template));
}
}
#region GraphicObject overrides
public override GraphicObject FindByName (string nameToFind)
{
//prevent name searching in template
return nameToFind == this.Name ? this : null;
}
protected override void onDraw (Cairo.Context gr)
{
//onDraw is overrided to prevent default drawing of background, template top container
//may have a binding to root background or a fixed one.
//this allow applying root background to random template's component
gr.Save ();
if (ClipToClientRect) {
//clip to client zone
CairoHelpers.CairoRectangle (gr, ClientRectangle, CornerRadius);
gr.Clip ();
}
if (child != null)
child.Paint (ref gr);
gr.Restore ();
}
#endregion
protected virtual void loadTemplate(GraphicObject template = null)
{
if (template == null) {
if (!Interface.DefaultTemplates.ContainsKey (this.GetType ().FullName))
throw new Exception (string.Format ("No default template found for '{0}'", this.GetType ().FullName));
this.SetChild (CurrentInterface.Load (Interface.DefaultTemplates[this.GetType ().FullName]));
}else
this.SetChild (template);
}
//TODO:IXmlSerializable is not used anymore
#region IXmlSerializable
public override System.Xml.Schema.XmlSchema GetSchema(){ return null; }
public override void ReadXml(System.Xml.XmlReader reader)
{
//Template could be either an attribute containing path or expressed inlined
//as a Template Element
using (System.Xml.XmlReader subTree = reader.ReadSubtree())
{
subTree.Read ();
string template = reader.GetAttribute ("Template");
string tmp = subTree.ReadOuterXml ();
//Load template from path set as attribute in templated control
if (string.IsNullOrEmpty (template)) {
//seek for template tag first
using (XmlReader xr = new XmlTextReader (tmp, XmlNodeType.Element, null)) {
//load template first if inlined
xr.Read (); //read first child
xr.Read (); //skip root node
while (!xr.EOF) {
if (!xr.IsStartElement ()) {
xr.Read ();
continue;
}
if (xr.Name == "ItemTemplate") {
string dataType = "default", datas = "", itemTmp;
while (xr.MoveToNextAttribute ()) {
if (xr.Name == "DataType")
dataType = xr.Value;
else if (xr.Name == "Data")
datas = xr.Value;
}
xr.MoveToElement ();
itemTmp = xr.ReadInnerXml ();
// if (ItemTemplates == null)
// ItemTemplates = new Dictionary<string, ItemTemplate> ();
//
// using (IMLReader iTmp = new IMLReader (null, itemTmp)) {
// ItemTemplates [dataType] =
// new ItemTemplate (iTmp.RootType, iTmp.GetLoader (), dataType, datas);
// }
// if (!string.IsNullOrEmpty (datas))
// ItemTemplates [dataType].CreateExpandDelegate(this);
continue;
}
if (xr.Name == "Template") {
xr.Read ();
Type t = Type.GetType ("Crow." + xr.Name);
if (t == null) {
Assembly a = Assembly.GetEntryAssembly ();
foreach (Type expT in a.GetExportedTypes ()) {
if (expT.Name == xr.Name)
t = expT;
}
}
GraphicObject go = (GraphicObject)Activator.CreateInstance (t);
(go as IXmlSerializable).ReadXml (xr);
loadTemplate (go);
continue;
}
xr.ReadInnerXml ();
}
}
} else
loadTemplate (CurrentInterface.Load (template));
//if no template found, load default one
if (this.child == null)
loadTemplate ();
//normal xml read
using (XmlReader xr = new XmlTextReader (tmp, XmlNodeType.Element, null)) {
xr.Read ();
base.ReadXml(xr);
}
}
}
public override void WriteXml(System.Xml.XmlWriter writer)
{
//TODO:
throw new NotImplementedException();
}
#endregion
}
}
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