/// <summary>
/// Return true, when currentValue must be change, to fit to specified maxValue.
/// Then store modified value to out newValue.
/// </summary>
/// <param name="currentValue"></param>
/// <param name="maxValue"></param>
/// <param name="force"></param>
/// <param name="newValue"></param>
/// <returns></returns>
private bool MustChangeValue(DecimalNRange currentValue, DecimalNRange maxValue, bool force, out DecimalNRange newValue)
{
newValue = null;
if (!currentValue.IsFilled || !maxValue.IsFilled)
{
return(false);
}
if (force)
{
newValue = maxValue.Clone;
return(true);
}
newValue = currentValue * maxValue;
return(newValue != currentValue);
}
/// <summary>
/// Read .MaximalBounds from DocumentArea, and create from its value for ValueMax to Axis and Scroll.
/// </summary>
private void AcceptMaximalBoundsFromDocument(bool force)
{
if (this._SuppressEvents)
{
return;
}
using (_SuppressedEvents.Scope(this))
{
RectangleD max = this.DocumentArea.MaximalBounds;
if (max.Width <= 0m || max.Height <= 0m)
{
return;
}
DecimalNRange maxH = new DecimalNRange(max.Left, max.Right);
this.AxisH.ValueLimit = maxH.Clone;
this.ScrollH.ValueTotal = maxH.Clone;
DecimalNRange maxV = new DecimalNRange(max.Top, max.Bottom);
this.AxisV.ValueLimit = maxV.Clone;
this.ScrollV.ValueTotal = maxV.Clone;
DecimalNRange value;
if (MustChangeValue(this.AxisH.Value, maxH, force, out value))
{
this.AxisH.Value = value;
}
if (MustChangeValue(this.ScrollH.Value, maxH, force, out value))
{
this.ScrollH.Value = value;
}
if (MustChangeValue(this.AxisV.Value, maxV, force, out value))
{
this.AxisV.Value = value;
}
if (MustChangeValue(this.ScrollV.Value, maxV, force, out value))
{
this.ScrollV.Value = value;
}
}
}