public override Size GetPreferredSize(Size proposedSize)
{
AbcMeasureContext context = new AbcMeasureContext(new AbcSize(proposedSize.Width, proposedSize.Height));
this.controlCoordinator.abcControl.Measure(context);
return(new Size((int)this.controlCoordinator.abcControl.DesiredMeasure.width, (int)this.controlCoordinator.abcControl.DesiredMeasure.height));
}
private AbcSize MeasureLabels(AbcMeasureContext context)
{
int count = this.labelInfos.Count;
//double desiredWidth = 0;
//double desiredHeight = 0;
for (int i = 0; i < count; i++)
{
AxisLabelInfo labelInfo = this.labelInfos[i];
IAbcLabel labelVisual = this.labelsPool.GetOrCreate(i);
labelVisual.Text = labelInfo.labelContent;
labelVisual.Measure(context);
//desiredWidth += labelVisual.DesiredMeasure.width;
//desiredHeight = Math.Max(0, labelVisual.DesiredMeasure.height);
}
this.labelsPool.HideAfter(count);
if (count > 0)
{
IAbcLabel firstLabel = this.labelsPool.GetOrCreate(0);
IAbcLabel lastLabel = this.labelsPool.GetOrCreate(count - 1);
double desiredWidth = firstLabel.DesiredMeasure.width + lastLabel.DesiredMeasure.width;
double desiredHeight = Math.Max(firstLabel.DesiredMeasure.height, lastLabel.DesiredMeasure.height);
return(new AbcSize(desiredWidth, desiredHeight));
}
else
{
return(AbcSize.Zero);
}
}
protected override Size MeasureOverride(Size constraint)
{
base.MeasureOverride(constraint);
AbcMeasureContext context = new AbcMeasureContext(new AbcSize(constraint.Width, constraint.Height));
this.controlCoordinator.abcControl.Measure(context);
return(new Size(this.controlCoordinator.abcControl.DesiredMeasure.width, this.controlCoordinator.abcControl.DesiredMeasure.height));
}
internal override AbcSize MeasureOverride(AbcMeasureContext context)
{
if (this.TryEnsureFormattedText())
{
return(new AbcSize(this.nativeFormattedText.Width, this.nativeFormattedText.Height));
}
else
{
return(AbcSize.Zero);
}
}
void IAbcVisual.Measure(AbcMeasureContext context)
{
if (!this.isVisible)
{
return;
}
this.isMeasurePhase = true;
this.desiredMeasure = this.MeasureOverride(context);
this.isMeasurePhase = false;
this.isMeasureValid = true;
}
void IAbcVisual.Measure(AbcMeasureContext context)
{
IAbcVisual abcVisual = this;
if (!abcVisual.IsVisible)
{
return;
}
this.isMeasurePhase = true;
this.MeasureOverride(context);
this.isMeasurePhase = false;
this.isMeasureValid = true;
}
internal void Measure(AbcMeasureContext context)
{
if (this.isMeasureValid)
{
return;
}
this.isMeasurePhase = true;
AbcSize availableSize = context.availableSize;
this.desiredMeasure = this.MeasureOverride(context);
context.availableSize = availableSize;
this.isMeasurePhase = false;
this.isMeasureValid = true;
}
protected override AbcSize MeasureOverride(AbcMeasureContext context)
{
if (this.axisLine == null)
{
this.axisLine = (IAbcRectangle)this.VisualTree.CreateVisual(typeof(IAbcRectangle));
this.canvas.Children.Add(this.axisLine);
}
this.EnsureLabelInfos();
AbcSize labelsDesiredSize = this.MeasureLabels(context);
double desiredWidth = labelsDesiredSize.width;
double desiredHeight = this.axisLineThickness + this.axisTickThickness + labelsDesiredSize.height;
return(new AbcSize(desiredWidth, desiredHeight));
}
protected override void OnMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
MeasureSpecMode widthMode = MeasureSpec.GetMode(widthMeasureSpec);
MeasureSpecMode heightMode = MeasureSpec.GetMode(heightMeasureSpec);
double availableWidth = widthMode == MeasureSpecMode.Unspecified ? double.PositiveInfinity : MeasureSpec.GetSize(widthMeasureSpec);
double availableHeight = heightMode == MeasureSpecMode.Unspecified ? double.PositiveInfinity : MeasureSpec.GetSize(heightMeasureSpec);
AbcMeasureContext context = new AbcMeasureContext(new AbcSize(availableWidth, availableHeight));
this.controlCoordinator.abcControl.Measure(context);
AbcSize desiredMeasure = this.controlCoordinator.abcControl.DesiredMeasure;
int measuredWidth = widthMode == MeasureSpecMode.Exactly ? (int)availableWidth : AbcMath.Round(desiredMeasure.width);
int measuredHeight = heightMode == MeasureSpecMode.Exactly ? (int)availableHeight : AbcMath.Round(desiredMeasure.height);
this.SetMeasuredDimension(measuredWidth, measuredHeight);
}
internal virtual void MeasureOverride(AbcMeasureContext context)
{
this.uiElement.Measure(new Size(context.availableSize.width, context.availableSize.height));
}
protected abstract AbcSize MeasureOverride(AbcMeasureContext context);
internal virtual AbcSize MeasureOverride(AbcMeasureContext context)
{
return(AbcSize.Zero);
}
internal virtual void MeasureOverride(AbcMeasureContext context)
{
this.view.Measure((int)context.availableSize.width, (int)context.availableSize.height);
}
internal AbcMeasureContext(AbcMeasureContext owner)
: base(owner)
{
}
void IAbcControl.Measure(AbcMeasureContext context)
{
this.Measure(context);
}
internal virtual void MeasureOverride(AbcMeasureContext context)
{
this.control?.GetPreferredSize(new Size((int)context.availableSize.width, (int)context.availableSize.height));
}