/// <summary>
/// Internals the property change.
/// </summary>
/// <param name="modelInstance">The model instance.</param>
/// <param name="newValue">The new value.</param>
/// <param name="message">The message.</param>
private async void InternalPropertyChange(BindableBase modelInstance, TProperty newValue, string message)
{
//find out there will be a changing by makesure they are not equal
var changing = (this.EqualityComparer != null) ?
!this.EqualityComparer(newValue, _value) :
!Object.Equals(newValue, _value);
if (!changing)
{
return;
}
//fire changing event ask if anyone against changing
var changingArg = new ValueChangingEventArgs <TProperty>(message, _value, newValue);
modelInstance.RaisePropertyChanging(changingArg);
var oldvalue = _value;
_value = newValue;
await Task.Yield();
if (changingArg.Cancellation.IsCancellationRequested)
{
_value = oldvalue;
return;
}
if (ValueChanging != null)
{
ValueChanging.Invoke(this, changingArg);
await Task.Yield();
if (changingArg.Cancellation.IsCancellationRequested)
{
_value = oldvalue;
return;
}
}
if (NonGenericValueChanging != null)
{
NonGenericValueChanging.Invoke(this, changingArg);
await Task.Yield();
if (changingArg.Cancellation.IsCancellationRequested)
{
_value = oldvalue;
return;
}
}
ValueChangedEventArgs <TProperty> changedArg = new ValueChangedEventArgs <TProperty>(message, oldvalue, newValue);
modelInstance.RaisePropertyChanged(changedArg);
ValueChanged?.Invoke(this, changedArg);
NonGenericValueChanged?.Invoke(this, changedArg);
}
/// <summary>
/// Handles the Tick event of the m_timer control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
private void m_timer_Tick(object sender, EventArgs e)
{
m_timer.Stop();
if (!Enabled)
{
return;
}
// Actions according to mouse clicks
switch (m_mouseEvent.Clicks)
{
case 1:
{
base.OnMouseClick(m_mouseEvent);
int newValue = GetValueAt(m_mouseEvent.Location);
if (newValue == -1)
{
return;
}
if (newValue < m_baseValue)
{
newValue = m_baseValue;
}
DeltaValue = newValue - m_value;
if (DeltaValue == 0)
{
return;
}
// Fires the value changing event
ValueChanging?.ThreadSafeInvoke(this, new AttributeValueChangingEventArgs(DeltaValue));
if (DeltaValue == 0)
{
return;
}
Value += DeltaValue;
}
break;
case 2:
{
base.OnMouseDoubleClick(m_mouseEvent);
Value = m_baseValue;
}
break;
}
// Fires the value changed event
ValueChanged?.ThreadSafeInvoke(this, new AttributeValueChangedEventArgs());
}
/// <summary>
/// Raises the <see cref="ValueChanging"/> event with the given parameters.
/// </summary>
/// <param name="args">The arguments of the event.</param>
protected void NotifyContentChanging(MemberNodeChangeEventArgs args)
{
PrepareChange?.Invoke(this, args);
ValueChanging?.Invoke(this, args);
}
protected void TransI(ref uint a, uint b, uint c, uint d, uint k, ushort s, uint i)
{
a = b + MD5Helper.RotateLeft(a + (c ^ (b | ~d)) + X[k] + T[i - 1], s);
}
protected void TransF(ref uint a, uint b, uint c, uint d, uint k, ushort s, uint i)
{
a = b + MD5Helper.RotateLeft(a + ((b & c) | (~b & d)) + X[k] + T[i - 1], s);
}
private void OnValueChanging(object sender, MemberNodeChangeEventArgs e)
{
ValueChanging?.Invoke(sender, e);
}
/// <summary>
/// Raises the ValueChanging event
/// </summary>
/// <param name="oldValue">The old property value</param>
/// <param name="newValue">The expected new property value</param>
/// <param name="cancel">Set to True to cancel the property change</param>
protected virtual void RaisePropertyValueChanging(TValue oldValue, TValue newValue, ref bool cancel)
{
ValueChanging?.Invoke(Owner, oldValue, newValue, ref cancel);
}
/// <summary>
/// 値変更前イベントを発生させる。
/// </summary>
/// <param name="e">ValueChangingEventArgs</param>
protected virtual void InvokeValueChanging(ValueChangingEventArgs e)
{
ValueChanging?.Invoke(this, e);
}
protected void RaiseValueChanging(object newValue)
{
ValueChanging?.Invoke(this, new ValueChangingEventArgs(newValue));
}
protected virtual void OnValueChanging(object sender)
{
ValueChanging?.Invoke(sender);
}