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-rw-r--r--src/GraphicObjects/GraphicObject.cs333
1 files changed, 174 insertions, 159 deletions
diff --git a/src/GraphicObjects/GraphicObject.cs b/src/GraphicObjects/GraphicObject.cs
index 093664d1..5cc2ae78 100644
--- a/src/GraphicObjects/GraphicObject.cs
+++ b/src/GraphicObjects/GraphicObject.cs
@@ -12,16 +12,8 @@ using System.IO;
namespace Crow
{
- public class GraphicObject : IXmlSerializable, ILayoutable, IValueChange, ICloneable, IBindable
+ public class GraphicObject : IXmlSerializable, ILayoutable, IValueChange, ICloneable
{
- #region IBindable implementation
- List<Binding> bindings = new List<Binding> ();
- public List<Binding> Bindings {
- get { return bindings; }
- }
-
- #endregion
-
internal static ulong currentUid = 0;
internal ulong uid = 0;
@@ -87,7 +79,7 @@ namespace Crow
Size minimumSize = "0,0";
bool cacheEnabled = false;
bool clipToClientRect = true;
- object dataSource;
+ protected object dataSource;
string style;
#endregion
@@ -136,7 +128,15 @@ namespace Crow
}
[XmlIgnore]public ILayoutable LogicalParent {
get { return logicalParent == null ? Parent : logicalParent; }
- set { logicalParent = value; }
+ set {
+ if (logicalParent == value)
+ return;
+ if (logicalParent != null)
+ (logicalParent as GraphicObject).DataSourceChanged -= onLogicalParentDataSourceChanged;
+ logicalParent = value;
+ if (logicalParent != null)
+ (logicalParent as GraphicObject).DataSourceChanged += onLogicalParentDataSourceChanged;
+ }
}
[XmlIgnore]public virtual Rectangle ClientRectangle {
get {
@@ -177,6 +177,7 @@ namespace Crow
public event EventHandler Enabled;
public event EventHandler Disabled;
public event EventHandler<LayoutingEventArgs> LayoutChanged;
+ public event EventHandler<DataSourceChangeEventArgs> DataSourceChanged;
#endregion
#region public properties
@@ -365,6 +366,10 @@ namespace Crow
return;
hasFocus = value;
+ if (hasFocus)
+ onFocused (this, null);
+ else
+ onUnfocused (this, null);
NotifyValueChanged ("HasFocus", hasFocus);
}
}
@@ -515,25 +520,25 @@ namespace Crow
RegisterForLayouting (LayoutingType.Sizing);
}
}
+ /// <summary>
+ /// Seek first logical tree upward if logicalParent is set, or seek graphic tree for
+ /// a not null dataSource that will be active for all descendants having dataSource=null
+ /// </summary>
[XmlAttributeAttribute][DefaultValue(null)]
public virtual object DataSource {
set {
if (dataSource == value)
return;
- #if DEBUG_BINDING
- Debug.WriteLine("******************************");
- Debug.WriteLine("New DataSource for => " + this.ToString());
- Debug.WriteLine("\t- " + DataSource);
- Debug.WriteLine("\t+ " + value);
- #endif
- this.ClearBinding ();
+ DataSourceChangeEventArgs dse = new DataSourceChangeEventArgs (dataSource, null);
dataSource = value;
- this.ResolveBindings();
+ dse.NewDataSource = DataSource;
+
+ OnDataSourceChanged (this, dse);
- NotifyValueChanged ("DataSource", dataSource);
+ NotifyValueChanged ("DataSource", DataSource);
}
get {
return dataSource == null ? LogicalParent == null ? null :
@@ -541,6 +546,25 @@ namespace Crow
(LogicalParent as GraphicObject).DataSource : null : dataSource;
}
}
+ protected virtual void onLogicalParentDataSourceChanged(object sender, DataSourceChangeEventArgs e){
+ ILayoutable tmp = Parent;
+ while (tmp != sender) {
+ if (!(tmp as GraphicObject).localDataSourceIsNull) {
+ OnDataSourceChanged (sender, e);
+ return;
+ }
+ tmp = tmp.Parent;
+ }
+ }
+ internal bool localDataSourceIsNull { get { return dataSource == null; } }
+
+ public virtual void OnDataSourceChanged(object sender, DataSourceChangeEventArgs e){
+ DataSourceChanged.Raise (sender, e);
+ //#if DEBUG_BINDING
+ Debug.WriteLine("New DataSource for => {0} \n\t{1}=>{2}", this.ToString(),e.OldDataSource,e.NewDataSource);
+ //#endif
+ }
+
[XmlAttributeAttribute]
public virtual string Style {
get { return style; }
@@ -1183,20 +1207,17 @@ namespace Crow
}
#endregion
- public virtual void onFocused(object sender, EventArgs e){
+ protected virtual void onFocused(object sender, EventArgs e){
#if DEBUG_FOCUS
Debug.WriteLine("Focused => " + this.ToString());
#endif
Focused.Raise (this, e);
- this.HasFocus = true;
}
- public virtual void onUnfocused(object sender, EventArgs e){
+ protected virtual void onUnfocused(object sender, EventArgs e){
#if DEBUG_FOCUS
Debug.WriteLine("UnFocused => " + this.ToString());
#endif
-
Unfocused.Raise (this, e);
- this.HasFocus = false;
}
public virtual void onEnable(object sender, EventArgs e){
Enabled.Raise (this, e);
@@ -1206,84 +1227,84 @@ namespace Crow
}
#region Binding
- public void BindMember(string _member, string _expression){
- Bindings.Add(new Binding (this, _member, _expression));
- }
- public virtual void ResolveBindings()
- {
- if (Bindings.Count == 0)
- return;
- #if DEBUG_BINDING
- Debug.WriteLine ("Resolve Bindings => " + this.ToString ());
- #endif
-
- CompilerServices.ResolveBindings (Bindings);
- }
+// public void BindMember(string _member, string _expression){
+// Bindings.Add(new Binding (this, _member, _expression));
+// }
+// public virtual void ResolveBindings()
+// {
+// if (Bindings.Count == 0)
+// return;
+// #if DEBUG_BINDING
+// Debug.WriteLine ("Resolve Bindings => " + this.ToString ());
+// #endif
+//
+// CompilerServices.ResolveBindings (Bindings);
+// }
/// <summary>
/// Remove dynamic delegates by ids from dataSource
/// and delete ref of this in Shared interface refs
/// </summary>
- public virtual void ClearBinding(){
- //dont clear binding if dataSource is not null,
- foreach (Binding b in Bindings) {
- try {
- if (!b.Resolved)
- continue;
- //cancel compiled events
- if (b.Target == null){
- continue;
- #if DEBUG_BINDING
- Debug.WriteLine("Clear binding canceled for => " + b.ToString());
- #endif
- }
- if (b.Target.Instance != DataSource){
- #if DEBUG_BINDING
- Debug.WriteLine("Clear binding canceled for => " + b.ToString());
- #endif
- continue;
- }
- #if DEBUG_BINDING
- Debug.WriteLine("ClearBinding => " + b.ToString());
- #endif
- if (string.IsNullOrEmpty (b.DynMethodId)) {
- b.Resolved = false;
- if (b.Source.Member.MemberType == MemberTypes.Event)
- removeEventHandler (b);
- //TODO:check if full reset is necessary
- continue;
- }
- MemberReference mr = null;
- if (b.Target == null)
- mr = b.Source;
- else
- mr = b.Target;
- Type dataSourceType = mr.Instance.GetType();
- EventInfo evtInfo = dataSourceType.GetEvent ("ValueChanged");
- FieldInfo evtFi = CompilerServices.GetEventHandlerField (dataSourceType, "ValueChanged");
- MulticastDelegate multicastDelegate = evtFi.GetValue (mr.Instance) as MulticastDelegate;
- if (multicastDelegate != null) {
- foreach (Delegate d in multicastDelegate.GetInvocationList()) {
- if (d.Method.Name == b.DynMethodId)
- evtInfo.RemoveEventHandler (mr.Instance, d);
- }
- }
- b.Reset ();
- } catch (Exception ex) {
- Debug.WriteLine("\t Error: " + ex.ToString());
- }
- }
- }
- void removeEventHandler(Binding b){
- FieldInfo fiEvt = CompilerServices.GetEventHandlerField (b.Source.Instance.GetType(), b.Source.Member.Name);
- MulticastDelegate multiDel = fiEvt.GetValue (b.Source.Instance) as MulticastDelegate;
- if (multiDel != null) {
- foreach (Delegate d in multiDel.GetInvocationList()) {
- if (d.Method.Name == b.Target.Member.Name)
- b.Source.Event.RemoveEventHandler (b.Source.Instance, d);
- }
- }
- }
+// public virtual void ClearBinding(){
+// //dont clear binding if dataSource is not null,
+// foreach (Binding b in Bindings) {
+// try {
+// if (!b.Resolved)
+// continue;
+// //cancel compiled events
+// if (b.Target == null){
+// continue;
+// #if DEBUG_BINDING
+// Debug.WriteLine("Clear binding canceled for => " + b.ToString());
+// #endif
+// }
+// if (b.Target.Instance != DataSource){
+// #if DEBUG_BINDING
+// Debug.WriteLine("Clear binding canceled for => " + b.ToString());
+// #endif
+// continue;
+// }
+// #if DEBUG_BINDING
+// Debug.WriteLine("ClearBinding => " + b.ToString());
+// #endif
+// if (string.IsNullOrEmpty (b.DynMethodId)) {
+// b.Resolved = false;
+// if (b.Source.Member.MemberType == MemberTypes.Event)
+// removeEventHandler (b);
+// //TODO:check if full reset is necessary
+// continue;
+// }
+// MemberReference mr = null;
+// if (b.Target == null)
+// mr = b.Source;
+// else
+// mr = b.Target;
+// Type dataSourceType = mr.Instance.GetType();
+// EventInfo evtInfo = dataSourceType.GetEvent ("ValueChanged");
+// FieldInfo evtFi = CompilerServices.GetEventHandlerField (dataSourceType, "ValueChanged");
+// MulticastDelegate multicastDelegate = evtFi.GetValue (mr.Instance) as MulticastDelegate;
+// if (multicastDelegate != null) {
+// foreach (Delegate d in multicastDelegate.GetInvocationList()) {
+// if (d.Method.Name == b.DynMethodId)
+// evtInfo.RemoveEventHandler (mr.Instance, d);
+// }
+// }
+// b.Reset ();
+// } catch (Exception ex) {
+// Debug.WriteLine("\t Error: " + ex.ToString());
+// }
+// }
+// }
+// void removeEventHandler(Binding b){
+// FieldInfo fiEvt = CompilerServices.GetEventHandlerField (b.Source.Instance.GetType(), b.Source.Member.Name);
+// MulticastDelegate multiDel = fiEvt.GetValue (b.Source.Instance) as MulticastDelegate;
+// if (multiDel != null) {
+// foreach (Delegate d in multiDel.GetInvocationList()) {
+// if (d.Method.Name == b.Target.Member.Name)
+// b.Source.Event.RemoveEventHandler (b.Source.Instance, d);
+// }
+// }
+// }
#endregion
#region IXmlSerializable
@@ -1291,60 +1312,60 @@ namespace Crow
{
return null;
}
- void affectMember(string name, string value){
- Type thisType = this.GetType ();
-
- if (string.IsNullOrEmpty (value))
- return;
-
- MemberInfo mi = thisType.GetMember (name).FirstOrDefault();
- if (mi == null) {
- Debug.WriteLine ("XML: Unknown attribute in " + thisType.ToString() + " : " + name);
- return;
- }
- if (mi.MemberType == MemberTypes.Event) {
- this.Bindings.Add (new Binding (new MemberReference(this, mi), value));
- return;
- }
- if (mi.MemberType == MemberTypes.Property) {
- PropertyInfo pi = mi as PropertyInfo;
-
- if (pi.GetSetMethod () == null) {
- Debug.WriteLine ("XML: Read only property in " + thisType.ToString() + " : " + name);
- return;
- }
-
- XmlAttributeAttribute xaa = (XmlAttributeAttribute)pi.GetCustomAttribute (typeof(XmlAttributeAttribute));
- if (xaa != null) {
- if (!string.IsNullOrEmpty (xaa.AttributeName))
- name = xaa.AttributeName;
- }
- if (value.StartsWith("{",StringComparison.Ordinal)) {
- //binding
- if (!value.EndsWith("}", StringComparison.Ordinal))
- throw new Exception (string.Format("XML:Malformed binding: {0}", value));
-
- this.Bindings.Add (new Binding (new MemberReference(this, pi), value.Substring (1, value.Length - 2)));
- return;
- }
- if (pi.GetCustomAttribute (typeof(XmlIgnoreAttribute)) != null)
- return;
- if (xaa == null)//not define as xmlAttribute
- return;
-
- if (pi.PropertyType == typeof(string)) {
- pi.SetValue (this, value, null);
- return;
- }
-
- if (pi.PropertyType.IsEnum) {
- pi.SetValue (this, Enum.Parse (pi.PropertyType, value), null);
- } else {
- MethodInfo me = pi.PropertyType.GetMethod ("Parse", new Type[] { typeof(string) });
- pi.SetValue (this, me.Invoke (null, new string[] { value }), null);
- }
- }
- }
+// void affectMember(string name, string value){
+// Type thisType = this.GetType ();
+//
+// if (string.IsNullOrEmpty (value))
+// return;
+//
+// MemberInfo mi = thisType.GetMember (name).FirstOrDefault();
+// if (mi == null) {
+// Debug.WriteLine ("XML: Unknown attribute in " + thisType.ToString() + " : " + name);
+// return;
+// }
+// if (mi.MemberType == MemberTypes.Event) {
+// this.Bindings.Add (new Binding (new MemberReference(this, mi), value));
+// return;
+// }
+// if (mi.MemberType == MemberTypes.Property) {
+// PropertyInfo pi = mi as PropertyInfo;
+//
+// if (pi.GetSetMethod () == null) {
+// Debug.WriteLine ("XML: Read only property in " + thisType.ToString() + " : " + name);
+// return;
+// }
+//
+// XmlAttributeAttribute xaa = (XmlAttributeAttribute)pi.GetCustomAttribute (typeof(XmlAttributeAttribute));
+// if (xaa != null) {
+// if (!string.IsNullOrEmpty (xaa.AttributeName))
+// name = xaa.AttributeName;
+// }
+// if (value.StartsWith("{",StringComparison.Ordinal)) {
+// //binding
+// if (!value.EndsWith("}", StringComparison.Ordinal))
+// throw new Exception (string.Format("XML:Malformed binding: {0}", value));
+//
+// this.Bindings.Add (new Binding (new MemberReference(this, pi), value.Substring (1, value.Length - 2)));
+// return;
+// }
+// if (pi.GetCustomAttribute (typeof(XmlIgnoreAttribute)) != null)
+// return;
+// if (xaa == null)//not define as xmlAttribute
+// return;
+//
+// if (pi.PropertyType == typeof(string)) {
+// pi.SetValue (this, value, null);
+// return;
+// }
+//
+// if (pi.PropertyType.IsEnum) {
+// pi.SetValue (this, Enum.Parse (pi.PropertyType, value), null);
+// } else {
+// MethodInfo me = pi.PropertyType.GetMethod ("Parse", new Type[] { typeof(string) });
+// pi.SetValue (this, me.Invoke (null, new string[] { value }), null);
+// }
+// }
+// }
public virtual void ReadXml (System.Xml.XmlReader reader)
{
if (reader.HasAttributes) {
@@ -1357,7 +1378,7 @@ namespace Crow
if (reader.Name == "Style")
continue;
- affectMember (reader.Name, reader.Value);
+ //affectMember (reader.Name, reader.Value);
}
reader.MoveToElement ();
}else
@@ -1475,12 +1496,6 @@ namespace Crow
/// <summary>
/// full GraphicTree clone with binding definition
/// </summary>
- public virtual GraphicObject DeepClone(){
- GraphicObject tmp = Clone () as GraphicObject;
- foreach (Binding b in this.bindings)
- tmp.Bindings.Add (new Binding (new MemberReference (tmp, b.Source.Member), b.Expression));
- return tmp;
- }
public override string ToString ()
{
generated by cgit v1.3.1-4-g156e (git 2.54.0) at 2026-11-12 17:04:15 +0000