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* Fix drawing trees with more nodes than 2000 nodes (CacheThreshold) by moving the header offset adjust from GetNodeAt to GetHitTestInfo

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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@406 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
blikblum
2008-04-06 16:06:13 +00:00
parent 03ad773153
commit 6c6bdbe86a
1 changed files with 10 additions and 14 deletions
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24
components/virtualtreeview-unstable/VirtualTrees.pas
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@ -24371,6 +24371,14 @@ begin
if X > Header.Columns.GetVisibleFixedWidth then
Inc(X, FEffectiveOffsetX);
Inc(Y, -FOffsetY);
//lclheder
if hoVisible in FHeader.Options then
begin
Dec(Y, FHeader.Height);
//the coordinate is in header
if Y < 0 then
Exit;
end;
end;
// If the point is in the tree area then check the nodes.
@ -25146,7 +25154,7 @@ end;
function TBaseVirtualTree.GetNodeAt(X, Y: Integer; Relative: Boolean; var NodeTop: Integer): PVirtualNode;
// This method returns the node that occupies the specified point, or nil if there's none.
// If Releative is True then X and Y are given in client coordinates otherwise they are considered as being
// If Relative is True then X and Y are given in client coordinates otherwise they are considered as being
// absolute values into the virtual tree image (regardless of the current offsets in the tree window).
// NodeTop gets the absolute or relative top position of the node returned or is untouched if no node
// could be found.
@ -25161,22 +25169,13 @@ begin
AbsolutePos := Y;
if Relative then
begin
Inc(AbsolutePos, -FOffsetY);
if hoVisible in FHeader.FOptions then
Inc(AbsolutePos, FHeader.Height);
end;
// CurrentPos tracks a running term of the current position to test for.
// It corresponds always to the top position of the currently considered node.
//lclheader: adjust position if Header is visible
if hoVisible in FHeader.FOptions then
CurrentPos := FHeader.Height
else
CurrentPos := 0;
CurrentPos := 0;
// If the cache is available then use it.
if tsUseCache in FStates then
Result := FindInPositionCache(AbsolutePos, CurrentPos)
@ -25237,10 +25236,7 @@ begin
// of the found node this top position is returned.
if Assigned(Result) then
begin
//lclheader
NodeTop := CurrentPos;
if hoVisible in FHeader.FOptions then
Dec(NodeTop,FHeader.Height);
if Relative then
Inc(NodeTop, FOffsetY);
//Logger.Send([lcPaintHeader],'GetNodeAt Result: ',Result^.Index);