public override void FromString(string s)
{
DockAlignValues result;
if (!Enum.TryParse(s, true, out result))
{
throw new Exception("Invalid dock-align value");
}
Align = result;
}
public IBound Dock(IEnumerable <ILayoutable> controls, IBound styleBound, IBound maxBound)
{
IStyleSheetHelper style = _stylesheet.Helper;
IStyleSheetContext context = StyleSheetContext.Current;
float parentW = styleBound.Width;
float parentH = styleBound.Height;
float paddingL = style.PaddingLeft(_container, parentW);
float paddingT = style.PaddingTop(_container, parentH);
float paddingR = style.PaddingRight(_container, parentW);
float paddingB = style.PaddingBottom(_container, parentH);
float borderWidth = style.BorderWidth(_container);
float left = borderWidth + paddingL;
float top = borderWidth + paddingT;
float right = parentW - (paddingR + borderWidth);
float bottom = parentH - (paddingB + borderWidth);
float resizedWidth = parentW;
float resizedHeight = parentH;
float freeW = style.SizeToContentWidth(_container) ? maxBound.Width - parentW : 0;
float freeH = style.SizeToContentHeight(_container) ? maxBound.Height - parentH : 0;
IList <ILayoutable> controlsList = controls as IList <ILayoutable> ?? controls.ToList();
var frames = new Rectangle[controlsList.Count];
for (int i = 0; i < controlsList.Count; i++)
{
ILayoutable control = controlsList[i];
float w = style.Width(control, parentW);
float h = style.Height(control, parentH);
float marginL = style.MarginLeft(control, parentW);
float marginT = style.MarginTop(control, parentH);
float marginR = style.MarginRight(control, parentW);
float marginB = style.MarginBottom(control, parentH);
float maxW = right - left - (marginL + marginR);
float maxH = bottom - top - (marginT + marginB);
resizedWidth += SizeTo(false, ref w, ref maxW, ref freeW, ref right);
resizedHeight += SizeTo(false, ref h, ref maxH, ref freeH, ref bottom);
IBound bound = control.ApplyStyles(_stylesheet, context.CreateBound(w, h)
, context.CreateBound(maxW + freeW, maxH + freeH));
w = bound.Width;
h = bound.Height;
resizedWidth += SizeTo(false, ref w, ref maxW, ref freeW, ref right);
resizedHeight += SizeTo(false, ref h, ref maxH, ref freeH, ref bottom);
float x = left + marginL;
float y = top + marginT;
DockAlignValues align = style.DockAlign(control);
switch (align)
{
case DockAlignValues.Left:
left += marginL + w + marginR;
break;
case DockAlignValues.Top:
top += marginT + h + marginB;
break;
case DockAlignValues.Right:
x = right - (marginR + w);
right -= marginL + w + marginR;
// reverse reference system, for size to content
x = -(resizedWidth - x);
break;
case DockAlignValues.Bottom:
y = bottom - (marginB + h);
bottom -= marginT + h + marginB;
// reverse reference system, for size to content
y = -(resizedHeight - y);
break;
default:
throw new Exception("Unknown align: " + align);
}
frames[i] = new Rectangle(x, y, w, h);
}
// restore reference system
for (int i = 0; i < controlsList.Count; i++)
{
Rectangle f = frames[i];
float x = f.Left >= 0 ? f.Left : resizedWidth + f.Left;
float y = f.Top >= 0 ? f.Top : resizedHeight + f.Top;
controlsList[i].Frame = new Rectangle(x, y, f.Width, f.Height);
}
return(context.CreateBound(resizedWidth, resizedHeight));
}
