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lcl: dbgrids: fixed TBookmark for fpc 2.7.1

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git-svn-id: trunk@37092 -
This commit is contained in:
mattias 2012-04-29 18:41:48 +00:00
parent 537e40a7d9
commit f43c7d764c
1 changed files with 23 additions and 18 deletions
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41
lcl/dbgrids.pas
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@ -3850,12 +3850,13 @@ end;
procedure TBookmarkList.SetCurrentRowSelected(const AValue: boolean);
var
Bookmark: TBookmark;
Bookmark: pointer;
Index: Integer;
begin
CheckActive;
Bookmark := FGrid.Datasource.Dataset.GetBookmark;
Bookmark := nil;
TBookmark(Bookmark) := FGrid.Datasource.Dataset.GetBookmark; // fetch and increase reference count
if Bookmark = nil then
Exit;
@ -3863,14 +3864,22 @@ begin
if Find(Bookmark, Index) then begin
FDataset.FreeBookmark(Bookmark);
{$IFNDEF noautomatedbookmark}
SetLength(TBookmark(Bookmark),0); // decrease reference count
{$ENDIF noautomatedbookmark}
if not AValue then begin
FDataset.FreeBookmark(Pointer(Items[Index]));
{$IFNDEF noautomatedbookmark}
SetLength(TBookmark(FList[Index]),0); // decrease reference count
{$ENDIF noautomatedbookmark}
FList.Delete(Index);
FGrid.Invalidate;
end;
end else begin
if AValue then begin
FList.Insert(Index, Pointer(Bookmark));
// the reference count of Bookmark was increased above, so it is save to
// store it here as pointer
FList.Insert(Index, Bookmark);
FGrid.Invalidate;
end;
end;
@ -3901,7 +3910,12 @@ var
i: Integer;
begin
for i:=0 to FList.Count-1 do
begin
FDataset.FreeBookmark(Items[i]);
{$IFNDEF noautomatedbookmark}
SetLength(TBookmark(FList[i]),0); // decrease reference count
{$ENDIF noautomatedbookmark}
end;
FList.Clear;
FGrid.Invalidate;
end;
@ -3913,6 +3927,9 @@ begin
for i := 0 to FList.Count - 1 do begin
FDataset.GotoBookmark(Items[i]);
FDataset.Delete;
{$IFNDEF noautomatedbookmark}
SetLength(TBookmark(FList[i]),0); // decrease reference count
{$ENDIF noautomatedbookmark}
FList.Delete(i);
end;
end;
@ -3921,11 +3938,10 @@ type
TDs=class(TDataset)
end;
function MyCompareBookmarks(ds:Tdataset; b1,b2:TBookmark): Integer;
function MyCompareBookmarks(ds:Tdataset; b1,b2:pointer): Integer;
var
i: Integer;
begin
{$IFDEF noautomatedbookmark}
if b1=b2 then
result := 0
else
@ -3935,20 +3951,9 @@ begin
if b2=nil then
result := 1
else begin
// Note: Tds(ds).bookmarksize is set at creation of TDataSet and does not change
result := CompareMemRange(b1,b2,Tds(ds).bookmarksize);
end;
{$ELSE}
if b1=b2 then
exit(0)
else if length(b1)<length(b2) then
exit(-1)
else if length(b1)>length(b2) then
exit(1)
else if length(b1)=0 then
exit(0)
else
result:=CompareMemRange(@b1[0],@b2[0],length(b1));
{$ENDIF}
end;
function TBookmarkList.Find(const Item: TBookmark; var AIndex: Integer): boolean;
@ -3963,7 +3968,7 @@ begin
while (L <= R) do
begin
I := L + (R - L) div 2;
CompareRes := MyCompareBookmarks(FDataset, Item, TBookmark(FList[I]));
CompareRes := MyCompareBookmarks(FDataset, pointer(Item), FList[I]);
//CompareRes := FDataset.CompareBookmarks(Item, TBookmark(FList[I]));
if (CompareRes > 0) then
L := I + 1