|
private GetGlobalLocationRelativeToRoot ( float &globalX, float &globalY ) : |
||
| globalX | float | |
| globalY | float | |
| Результат | ||
void GetGlobalLocationRelativeToRoot(ref PointF location)
{
if (_justBlockRun != null)
{
//recursive
if (_viewportX != 0 || _viewportY != 0)
{
}
location.Offset(
(int)(_justBlockRun.Left),
(int)(_justBlockRun.Top + _justBlockRun.HostLine.CachedLineTop));
//recursive
_justBlockRun.HostLine.OwnerBox.GetGlobalLocationRelativeToRoot(ref location);
return;//***
}
CssBox parentBox = _absLayerOwner ?? this.ParentBox;
if (parentBox != null)
{
#if DEBUG
if (_viewportX != 0 || _viewportY != 0)
{
}
#endif
location.Offset((int)this.LocalX - _viewportX, (int)this.LocalY - _viewportY);
//recursive
parentBox.GetGlobalLocationRelativeToRoot(ref location);
}
}
///// walk down and up
///// </summary>
///// <param name="startLine"></param>
///// <returns></returns>
//static IEnumerable<CssLineBox> GetLineWalkDownAndUpIter(LineWalkVisitor visitor, CssLineBox startLine)
//{
// float sx, sy;
// startLine.OwnerBox.GetGlobalLocation(out sx, out sy);
// CssLineBox curLine = startLine;
// //walk up and down the tree
// CssLineBox nextline = curLine.NextLine;
// while (nextline != null)
// {
// visitor._globalY = sy + startLine.CachedLineTop;
// yield return nextline;
// nextline = nextline.NextLine;
// }
// //--------------------
// //no next line
// //then walk up ***
// CssBox curBox = startLine.OwnerBox;
// RETRY://***
// CssBox level1Sibling = BoxHitUtils.GetNextSibling(curBox);
// while (level1Sibling != null)
// {
// level1Sibling.GetGlobalLocation(out sx, out sy);
// visitor._globalY = sy;
// //walk down
// foreach (CssLineBox line in GetLineWalkDownIter(visitor, level1Sibling))
// {
// yield return line;
// }
// level1Sibling = BoxHitUtils.GetNextSibling(level1Sibling);
// }
// //--------------------
// //other further sibling
// //then step to parent of lineOwner
// if (curBox.ParentBox != null)
// {
// //if has parent
// //walk up***
// curBox = curBox.ParentBox;
// goto RETRY;
// }
//}
/// walk down and up
/// </summary>
/// <param name="startLine"></param>
/// <returns></returns>
static IEnumerable <CssLineBox> GetLineWalkDownAndUpIter(LineWalkVisitor visitor, CssLineBox startLine)
{
PointF p = new PointF();
startLine.OwnerBox.GetGlobalLocationRelativeToRoot(ref p);
CssLineBox curLine = startLine;
//walk up and down the tree
CssLineBox nextline = curLine.NextLine;
while (nextline != null)
{
visitor._globalY = p.Y + startLine.CachedLineTop;
yield return(nextline);
nextline = nextline.NextLine;
}
//--------------------
//no next line
//then walk up ***
CssBox curBox = startLine.OwnerBox;
RETRY: //***
CssBox level1Sibling = BoxHitUtils.GetNextSibling(curBox);
while (level1Sibling != null)
{
p = new PointF();
level1Sibling.GetGlobalLocationRelativeToRoot(ref p);
visitor._globalY = p.Y;
//walk down
foreach (CssLineBox line in GetLineWalkDownIter(visitor, level1Sibling))
{
yield return(line);
}
level1Sibling = BoxHitUtils.GetNextSibling(level1Sibling);
}
//--------------------
//other further sibling
//then step to parent of lineOwner
if (curBox.ParentBox != null)
{
//if has parent
//walk up***
curBox = curBox.ParentBox;
goto RETRY;
}
}
Rectangle GetSelectionRectArea()
{
if (selectedLines != null)
{
int j = selectedLines.Count;
//first
if (j > 0)
{
CssBox ownerCssBox = null;
CssBox rootbox = null;
float fx1 = 0, fy1 = 0; //left top
RectangleF selArea = RectangleF.Empty;
//if (j ==1)
//{
//}
for (int i = 0; i < j; ++i)
{
var line = selectedLines[i];
if (line.OwnerBox != ownerCssBox)
{
ownerCssBox = line.OwnerBox;
rootbox = ownerCssBox.GetGlobalLocationRelativeToRoot(out fx1, out fy1);
}
if (i == 0)
{
selArea = new RectangleF(fx1,
fy1 + line.CachedLineTop,
line.CachedLineContentWidth,
line.CacheLineHeight);
}
else
{
selArea = RectangleF.Union(selArea,
new RectangleF(fx1,
fy1 + line.CachedLineTop,
line.CachedLineContentWidth,
line.CacheLineHeight));
}
}
//if want to debug then send a big rect
//Console.WriteLine(new Rectangle((int)selArea.X, (int)selArea.Y, (int)selArea.Width, (int)selArea.Height).ToString());
//return new Rectangle(0, 0, 800, 600);
return(new Rectangle((int)selArea.X, (int)selArea.Y, (int)selArea.Width, (int)selArea.Height));
}
}
return(Rectangle.Empty);
}
