public static float CalculateHeight(this GridVerticalAlignment alignment, float boundaryFrameHeight, float subViewHeight,
bool autoHeight, SubViewThickness subViewMargin)
{
switch (alignment)
{
case GridVerticalAlignment.Top:
case GridVerticalAlignment.Bottom:
case GridVerticalAlignment.Center:
return autoHeight ? 0 : subViewHeight;
case GridVerticalAlignment.Stretch:
return autoHeight ? (boundaryFrameHeight - subViewMargin.Bottom - subViewMargin.Top) : subViewHeight;
}
throw new ArgumentException("This alignment can't be processed");
}
public static float CalculateWidth(this GridHorizontalAlignment alignment, float boundaryFrameWidth, float subViewWidth,
bool autoWidth, SubViewThickness subViewMargin)
{
switch (alignment)
{
case GridHorizontalAlignment.Left:
case GridHorizontalAlignment.Right:
case GridHorizontalAlignment.Center:
return autoWidth ? 0 : subViewWidth;
case GridHorizontalAlignment.Stretch:
return autoWidth ? (boundaryFrameWidth - subViewMargin.Left - subViewMargin.Right) : subViewWidth;
}
throw new ArgumentException("The alignment can't be processed");
}
public static float CalculateYPosition(this GridVerticalAlignment alignment, float boundaryFrameHeight,
float subViewHeight, SubViewThickness subViewMargin)
{
switch (alignment)
{
case GridVerticalAlignment.Top:
return subViewMargin.Top;
case GridVerticalAlignment.Bottom:
return boundaryFrameHeight - subViewHeight - subViewMargin.Bottom;
case GridVerticalAlignment.Center:
return (boundaryFrameHeight - subViewHeight) / 2;
case GridVerticalAlignment.Stretch:
return subViewMargin.Top;
}
throw new ArgumentException("This alignment can't be processed");
}
public static float CalculateXPosition(this GridHorizontalAlignment alignment, float boundaryFrameWidth,
float subViewWidth, SubViewThickness subViewMargin)
{
switch (alignment)
{
case GridHorizontalAlignment.Left:
return subViewMargin.Left;
case GridHorizontalAlignment.Right:
return boundaryFrameWidth - subViewWidth - subViewMargin.Right;
case GridHorizontalAlignment.Center:
return (boundaryFrameWidth - subViewWidth) / 2;
case GridHorizontalAlignment.Stretch:
return subViewMargin.Left;
}
throw new ArgumentException("The alignment can't be processed");
}
public GridSubViewMeasure()
{
this.Width = 0F;
this.Height = 0F;
this.ActualWidth = 0F;
this.ActualHeight = 0F;
this.AutoWidth = true;
this.AutoHeight = true;
this.Row = 0;
this.Column = 0;
this.ColumnSpan = 1;
this.RowSpan = 1;
this.HorizontalAlignment = GridHorizontalAlignment.Stretch;
this.VerticalAlignment = GridVerticalAlignment.Stretch;
this.Margin = new SubViewThickness(0);
}
public void AddChild(UIView subView, int row = 0, int column = 0, int rowSpan = 1, int columnSpan = 1,
bool autoHeight = true, bool autoWidth = true, GridHorizontalAlignment horizontalAlingment = GridHorizontalAlignment.Stretch,
GridVerticalAlignment verticalAlingment = GridVerticalAlignment.Stretch,
SubViewThickness margin = default(SubViewThickness))
{
GridSubViewMeasure subViewMeasure = new GridSubViewMeasure()
{Row = row, Column = column, RowSpan = rowSpan, ColumnSpan = columnSpan,
AutoWidth = autoWidth, AutoHeight = autoHeight,
HorizontalAlignment = horizontalAlingment, VerticalAlignment = verticalAlingment,
Margin = margin, Width = subView.Frame.Width, Height = subView.Frame.Height
};
__measures.Add(subView, subViewMeasure);
RectangleF subViewFrame = this.CalculateMeasure(subViewMeasure);
subView.Frame = subViewFrame;
this.Add(subView);
}
public void AddChild(UIView subView, int row, int column, SubViewThickness margin)
{
this.AddChild(subView, row, column, 1, 1, true, true, GridHorizontalAlignment.Stretch, GridVerticalAlignment.Stretch, margin);
}
public void SetMargin(UIView subView, SubViewThickness margin)
{
if (!__measures.ContainsKey(subView))
throw new ArgumentException("The SubView is not in the Grid");
__measures[subView].Margin = margin;
this.UpdateInnerChild(subView);
}
