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Changed naming to make the code more understandable.

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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@2402 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
This commit is contained in:
RKrom 2012-12-30 13:05:05 +00:00
parent 09400ccdbe
commit 9de30e41d5
1 changed files with 45 additions and 55 deletions
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100
Greenshot/Drawing/Fields/Binding/BidirectionalBinding.cs
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@ -28,14 +28,13 @@ namespace Greenshot.Drawing.Fields.Binding {
/// This implementation synchronizes null values, too. If you do not want this
/// behavior (e.g. when binding to a
/// </summary>
public class BidirectionalBinding
{
private INotifyPropertyChanged object1;
private INotifyPropertyChanged object2;
private string property1;
private string property2;
private bool updatingObject1 = false;
private bool updatingObject2 = false;
public class BidirectionalBinding {
private INotifyPropertyChanged controlObject;
private INotifyPropertyChanged fieldObject;
private string controlPropertyName;
private string fieldPropertyName;
private bool updatingControl = false;
private bool updatingField = false;
private IBindingConverter converter;
private IBindingValidator validator;
@ -51,27 +50,25 @@ namespace Greenshot.Drawing.Fields.Binding {
/// <param name="property1">Property of 1st object to bind</param>
/// <param name="object2">Object containing 2nd property to bind</param>
/// <param name="property2">Property of 2nd object to bind</param>
public BidirectionalBinding(INotifyPropertyChanged object1, string property1, INotifyPropertyChanged object2, string property2)
{
this.object1 = object1;
this.object2 = object2;
this.property1 = property1;
this.property2 = property2;
public BidirectionalBinding(INotifyPropertyChanged controlObject, string controlPropertyName, INotifyPropertyChanged fieldObject, string fieldPropertyName) {
this.controlObject = controlObject;
this.fieldObject = fieldObject;
this.controlPropertyName = controlPropertyName;
this.fieldPropertyName = fieldPropertyName;
this.object1.PropertyChanged += new PropertyChangedEventHandler(Property1Changed);
this.object2.PropertyChanged += new PropertyChangedEventHandler(Property2Changed);
this.controlObject.PropertyChanged += new PropertyChangedEventHandler(ControlPropertyChanged);
this.fieldObject.PropertyChanged += new PropertyChangedEventHandler(FieldPropertyChanged);
}
/// <summary>
/// Bind properties of two objects bidirectionally, converting the values using a converter
/// </summary>
/// <param name="object1">Object containing 1st property to bind</param>
/// <param name="property1">Property of 1st object to bind</param>
/// <param name="object2">Object containing 2nd property to bind</param>
/// <param name="property2">Property of 2nd object to bind</param>
/// <param name="controlObject">Object containing 1st property to bind</param>
/// <param name="controlPropertyName">Property of 1st object to bind</param>
/// <param name="fieldObject">Object containing 2nd property to bind</param>
/// <param name="fieldPropertyName">Property of 2nd object to bind</param>
/// <param name="converter">taking care of converting the synchronzied value to the correct target format and back</param>
public BidirectionalBinding(INotifyPropertyChanged object1, string property1, INotifyPropertyChanged object2, string property2, IBindingConverter converter) : this(object1, property1, object2, property2)
{
public BidirectionalBinding(INotifyPropertyChanged controlObject, string controlPropertyName, INotifyPropertyChanged fieldObject, string fieldPropertyName, IBindingConverter converter) : this(controlObject, controlPropertyName, fieldObject, fieldPropertyName) {
this.converter = converter;
}
@ -79,13 +76,12 @@ namespace Greenshot.Drawing.Fields.Binding {
/// Bind properties of two objects bidirectionally, converting the values using a converter.
/// Synchronization can be intercepted by adding a validator.
/// </summary>
/// <param name="object1">Object containing 1st property to bind</param>
/// <param name="property1">Property of 1st object to bind</param>
/// <param name="object2">Object containing 2nd property to bind</param>
/// <param name="property2">Property of 2nd object to bind</param>
/// <param name="controlObject">Object containing 1st property to bind</param>
/// <param name="controlPropertyName">Property of 1st object to bind</param>
/// <param name="fieldObject">Object containing 2nd property to bind</param>
/// <param name="fieldPropertyName">Property of 2nd object to bind</param>
/// <param name="validator">validator to intercept synchronisation if the value does not match certain criteria</param>
public BidirectionalBinding(INotifyPropertyChanged object1, string property1, INotifyPropertyChanged object2, string property2, IBindingValidator validator) : this(object1, property1, object2, property2)
{
public BidirectionalBinding(INotifyPropertyChanged controlObject, string controlPropertyName, INotifyPropertyChanged fieldObject, string fieldPropertyName, IBindingValidator validator) : this(controlObject, controlPropertyName, fieldObject, fieldPropertyName) {
this.validator = validator;
}
@ -93,48 +89,43 @@ namespace Greenshot.Drawing.Fields.Binding {
/// Bind properties of two objects bidirectionally, converting the values using a converter.
/// Synchronization can be intercepted by adding a validator.
/// </summary>
/// <param name="object1">Object containing 1st property to bind</param>
/// <param name="property1">Property of 1st object to bind</param>
/// <param name="object2">Object containing 2nd property to bind</param>
/// <param name="property2">Property of 2nd object to bind</param>
/// <param name="controlObject">Object containing 1st property to bind</param>
/// <param name="controlPropertyName">Property of 1st object to bind</param>
/// <param name="fieldObject">Object containing 2nd property to bind</param>
/// <param name="fieldPropertyName">Property of 2nd object to bind</param>
/// <param name="converter">taking care of converting the synchronzied value to the correct target format and back</param>
/// <param name="validator">validator to intercept synchronisation if the value does not match certain criteria</param>
public BidirectionalBinding(INotifyPropertyChanged object1, string property1, INotifyPropertyChanged object2, string property2, IBindingConverter converter, IBindingValidator validator) : this(object1, property1, object2, property2, converter)
{
public BidirectionalBinding(INotifyPropertyChanged controlObject, string controlPropertyName, INotifyPropertyChanged fieldObject, string fieldPropertyName, IBindingConverter converter, IBindingValidator validator) : this(controlObject, controlPropertyName, fieldObject, fieldPropertyName, converter) {
this.validator = validator;
}
public void Property1Changed(object sender, PropertyChangedEventArgs e)
{
if(!updatingObject1 && e.PropertyName.Equals(property1))
{
updatingObject2 = true;
synchronize(object1, property1, object2, property2);
updatingObject2 = false;
public void ControlPropertyChanged(object sender, PropertyChangedEventArgs e) {
if (!updatingControl && e.PropertyName.Equals(controlPropertyName)) {
updatingField = true;
synchronize(controlObject, controlPropertyName, fieldObject, fieldPropertyName);
updatingField = false;
}
}
public void Property2Changed(object sender, PropertyChangedEventArgs e)
{
if(!updatingObject2 && e.PropertyName.Equals(property2))
{
updatingObject1 = true;
synchronize(object2, property2, object1, property1);
updatingObject1 = false;
public void FieldPropertyChanged(object sender, PropertyChangedEventArgs e) {
if (!updatingField && e.PropertyName.Equals(fieldPropertyName)) {
updatingControl = true;
synchronize(fieldObject, fieldPropertyName, controlObject, controlPropertyName);
updatingControl = false;
}
}
private void synchronize(INotifyPropertyChanged sourceObject, string sourceProperty, INotifyPropertyChanged targetObject, string targetProperty)
{
private void synchronize(INotifyPropertyChanged sourceObject, string sourceProperty, INotifyPropertyChanged targetObject, string targetProperty) {
PropertyInfo targetPropertyInfo = resolvePropertyInfo(targetObject, targetProperty);
PropertyInfo sourcePropertyInfo = resolvePropertyInfo(sourceObject, sourceProperty);
if(sourcePropertyInfo != null && targetPropertyInfo != null && targetPropertyInfo.CanWrite)
{
if (sourcePropertyInfo != null && targetPropertyInfo != null && targetPropertyInfo.CanWrite) {
object bValue = sourcePropertyInfo.GetValue(sourceObject, null);
if(converter != null && bValue != null) bValue = converter.convert(bValue);
if (converter != null && bValue != null) {
bValue = converter.convert(bValue);
}
try {
if(validator == null || validator.validate(bValue)) {
if (validator == null || validator.validate(bValue)) {
targetPropertyInfo.SetValue(targetObject, bValue, null);
}
} catch (Exception e) {
@ -155,7 +146,6 @@ namespace Greenshot.Drawing.Fields.Binding {
}
}
return ret;
}
public IBindingConverter Converter {