double[] CalcDefaultSizes(SizeConstraint width, SizeConstraint height, bool allowShrink)
{
double requiredSize = 0, totminsize = 0;
double availableSize = width.AvailableSize;
double spacing = this.owner.Spacing;
var widthConstraint = SizeConstraint.Unconstrained;
var heightConstraint = height;
// var sizes = new Dictionary<BoxPlacement, double>();
var mw = new double[this.owner.Placements.Count];
var ww = new double[this.owner.Placements.Count];
var hh = 0.0;
int nexpands = 0;
// Get the natural size of each child
for (int nit = 0; nit < this.owner.Placements.Count; nit++)
{
var b = this.owner.Placements[nit].Child;
var s = (Size)b.GetBackend().GetPreferredSize(widthConstraint, heightConstraint);
mw[nit] = MinWidth(b, s);
ww[nit] = s.Width;
hh = Math.Max(s.Height, hh);
requiredSize += ww[nit];
totminsize += mw[nit];
if (b.ExpandHorizontal)
{
nexpands++;
}
}
double remaining = availableSize - totminsize - (spacing * (double)(this.owner.Placements.Count - 1));
if (remaining > 0)
{
var remaining2 = availableSize - requiredSize - (spacing * (double)(this.owner.Placements.Count - 1));
if (remaining2 > 0)
{
var expandRemaining = new SizeSplitter(remaining2 - (requiredSize - totminsize), nexpands);
for (int nit = 0; nit < this.owner.Placements.Count; nit++)
{
var b = this.owner.Placements[nit].Child;
ww[nit] = mw[nit];
if (b.ExpandHorizontal)
{
ww[nit] += expandRemaining.NextSizePart();
//todo getprefsize
}
}
}
else if (remaining2 < 0)
{
var dd = remaining - (requiredSize - totminsize);
var expandRemaining = new SizeSplitter((requiredSize - totminsize), this.owner.Placements.Count);
for (int nit = 0; nit < this.owner.Placements.Count; nit++)
{
var b = this.owner.Placements[nit].Child;
ww[nit] = mw[nit] + dd * (ww[nit] - mw[nit]) / (requiredSize - totminsize);
if (b.ExpandHorizontal)
{
ww[nit] += expandRemaining.NextSizePart();
}
//if (ExpandsForOrientation(bp.Child))
// nextsize[bp] = minsize[bp]+expandRemaining.NextSizePart();
}
}
}
else //if (/*allowShrink &&*/ remaining < 0)
{
for (int nit = 0; nit < this.owner.Placements.Count; nit++)
{
ww[nit] = mw[nit];
}
}
return(ww.ToArray());
}
Dictionary <BoxPlacement, double> CalcDefaultSizes(SizeConstraint width, SizeConstraint height, bool allowShrink)
{
var nextsize = new Dictionary <BoxPlacement, double>();
var minsize = new Dictionary <BoxPlacement, double>();
bool vertical = direction == Orientation.Vertical;
int nexpands = 0;
double requiredSize = 0, totminsize = 0;
double availableSize = vertical ? height.AvailableSize : width.AvailableSize;
var widthConstraint = vertical ? width : SizeConstraint.Unconstrained;
var heightConstraint = vertical ? SizeConstraint.Unconstrained : height;
var children = (ChildrenCollection <BoxPlacement>)GetFieldValuePrivate(typeof(Box), owner, "children");
double spacing = owner.Spacing;
var visibleChildren = children.Where(b => b.Child.Visible).ToArray();
// var sizes = new Dictionary<BoxPlacement, double>();
Size s3;
// Get the natural size of each child
foreach (var bp in visibleChildren)
{
var s1 = bp.Child.Surface.GetPreferredSize();
// var s2 = bp.Child.GetBackend().GetPreferredSize(widthConstraint, heightConstraint);
s3 = (Size)bp.Child.GetType().InvokePrivate(bp.Child, "OnGetPreferredSize", new object[] { widthConstraint, heightConstraint });
var s4 = bp.Child.Size;
var s = (Size)bp.Child.GetType().InvokePrivate(bp.Child, "OnGetPreferredSize", new object[] { widthConstraint, heightConstraint });
minsize[bp] = vertical ? MinHeight(bp.Child, s) : MinWidth(bp.Child, s);
nextsize[bp] = Math.Max(minsize[bp], vertical ? s.Height : s.Width);
if (minsize[bp] < 0)
{
minsize[bp] = nextsize[bp];
}
requiredSize += nextsize[bp];
totminsize += minsize[bp];
// sizes[bp] = nextsize[bp];
if (ExpandsForOrientation(bp.Child))
{
nexpands++;
}
}
double remaining = availableSize - totminsize - (spacing * (double)(visibleChildren.Length - 1));
if (remaining > 0) // more space as minimum
{
var remaining2 = availableSize - requiredSize - (spacing * (double)(visibleChildren.Length - 1));
if (remaining2 > 0) // more space as getpreffered
{
var expandRemaining = new SizeSplitter(remaining2, nexpands);
foreach (var bp in visibleChildren)
{
// nextsize[bp] = minsize[bp];
if (ExpandsForOrientation(bp.Child))
{
nextsize[bp] += expandRemaining.NextSizePart();
// todo getprefsize
/* switch (AlligmMent(bp.Child))
* {
* case WidgetPlacement.Fill: break;
* default:*/
{
// s3 = (Size)bp.Child.GetType().InvokePrivate(bp.Child, "OnGetPreferredSize", new object[] { vertical ? widthConstraint : SizeConstraint.WithSize(nextsize[bp]), vertical ? SizeConstraint.WithSize(nextsize[bp]) : heightConstraint });
// nextsize[bp] = vertical ? s3.Height : s3.Width;
}
/* break;
* }*/
// Debug.Assert(nextsize[bp] > 0);
}
}
}
else if (remaining2 < 0) // between minimum ans getpreffered
{
var dd = remaining - (requiredSize - totminsize);
var expandRemaining = new SizeSplitter((requiredSize - totminsize), nexpands);
foreach (var bp in visibleChildren)
{
nextsize[bp] += remaining2 * (nextsize[bp] - minsize[bp]) / (requiredSize - totminsize);
if (ExpandsForOrientation(bp.Child))
{
// nextsize[bp] += expandRemaining.NextSizePart();
/* switch (AlligmMent(bp.Child))
* {
* case WidgetPlacement.Fill: break;
* default:
* {*/
// s3 = (Size)bp.Child.GetType().InvokePrivate(bp.Child, "OnGetPreferredSize", new object[] { vertical ? widthConstraint : SizeConstraint.WithSize(nextsize[bp]), vertical ? SizeConstraint.WithSize(nextsize[bp]) : heightConstraint });
// nextsize[bp] = vertical ? s3.Height : s3.Width;
/* break;
* }
* }*/
// Debug.Assert(nextsize[bp] > 0);
}
//if (ExpandsForOrientation(bp.Child))
// nextsize[bp] = minsize[bp]+expandRemaining.NextSizePart();
}
}
}
else //if (/*allowShrink &&*/ remaining < 0)
{
foreach (var bp in visibleChildren)
{
nextsize[bp] = minsize[bp];
}
}
return(nextsize);
}