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LCL, dbgrid scrolling was locked under some circunstances, fix issue #9381

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git-svn-id: trunk@11741 -
This commit is contained in:
jesus 2007-08-04 23:38:29 +00:00
parent 84abb757e2
commit 9c18feacc6
1 changed files with 5 additions and 33 deletions
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38
lcl/dbgrids.pas
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@ -79,7 +79,7 @@ type
);
TDbGridExtraOptions = set of TDbGridExtraOption;
TDbGridStatusItem = (gsVisibleMove, gsUpdatingData, gsAddingAutoColumns,
TDbGridStatusItem = (gsUpdatingData, gsAddingAutoColumns,
gsRemovingAutoColumns);
TDbGridStatus = set of TDbGridStatusItem;
@ -175,7 +175,6 @@ type
procedure FocusControl(Field: TFieldRef); override;
// Testing Events
procedure CheckBrowseMode; override;
function CheckFirstRecord: boolean;
procedure EditingChanged; override;
procedure UpdateData; override;
function MoveBy(Distance: Integer): Integer; override;
@ -829,13 +828,8 @@ begin
if aDataSet=nil then DebugLn('nil)')
else DebugLn(aDataSet.Name,')');
{$endif}
if not (gsVisibleMove in FGridStatus) or FDatalink.CheckFirstRecord then
LayoutChanged
else
UpdateScrollBarRange;
LayoutChanged;
UpdateActive;
//RestoreEditor;
end;
procedure TCustomDBGrid.OnDataSetOpen(aDataSet: TDataSet);
@ -923,11 +917,10 @@ begin
if Distance<>0 then begin
Row:= FixedRows + FDataLink.ActiveRecord;
Invalidate
Invalidate;
end else
UpdateActive;
if OldEditorMode and (dgAlwaysShowEditor in Options) then
EditorMode := True;
end;
@ -1798,15 +1791,6 @@ var
FDatalink.MoveBy(Amount);
{$IfDef dbgGrid}DebugLn('KeyDown.DoMoveBy FIN');{$Endif}
end;
procedure DoMoveBySmall(amount: Integer);
begin
{$IfDef dbgGrid}DebugLn('KeyDown.DoMoveBySmall(',IntToStr(Amount),')');{$Endif}
Include(FGridStatus, gsVisibleMove);
FDatalink.CheckFirstRecord;
FDatalink.MoveBy(Amount);
Exclude(FGridStatus, gsVisibleMove);
{$IfDef dbgGrid}DebugLn('KeyDown.doMoveBySmall FIN');{$Endif}
end;
procedure DoCancel;
begin
{$IfDef dbgGrid}DebugLn('KeyDown.doCancel INIT');{$Endif}
@ -1846,7 +1830,7 @@ var
end;
end else begin
result:=false;
doMoveBySmall(1);
doMoveBy(1);
if GridCanModify and FDataLink.EOF then begin
doAppend;
end;
@ -1859,7 +1843,7 @@ var
if InsertCancelable then
doCancel
else
doMoveBySmall(-1);
doMoveBy(-1);
result := FDatalink.DataSet.BOF;
{$ifdef dbgGrid}DebugLn('DoVKUP FIN');{$endif}
end;
@ -2033,9 +2017,7 @@ var
procedure doMoveBy;
begin
{$IfDef dbgGrid} DebugLn('DBGrid.MouseDown MoveBy INIT'); {$Endif}
Include(FGridStatus, gsVisibleMove);
FDatalink.MoveBy(P.Y - Row);
Exclude(FGridStatus, gsVisibleMove);
{$IfDef dbgGrid} DebugLn('DBGrid.MouseDown MoveBy END'); {$Endif}
end;
procedure doMoveToColumn;
@ -2283,9 +2265,7 @@ begin
if Assigned(OnMouseWheelDown) then
OnMouseWheelDown(Self, Shift, MousePos, Result);
if not Result and FDatalink.Active then begin
Include(FGridStatus, gsVisibleMove);
FDatalink.MoveBy(1);
Exclude(FGridStatus, gsVisibleMove);
Result := True;
end;
end;
@ -2297,9 +2277,7 @@ begin
if Assigned(OnMouseWheelUp) then
OnMouseWheelUp(Self, Shift, MousePos, Result);
if not Result and FDatalink.Active then begin
Include(FGridStatus, gsVisibleMove);
FDatalink.MoveBy(-1);
Exclude(FGridStatus, gsVisibleMove);
Result := True;
end;
end;
@ -2918,12 +2896,6 @@ begin
inherited CheckBrowseMode;
end;
function TComponentDataLink.CheckFirstRecord: boolean;
begin
Result := FOldFirstRecord<>FirstRecord;
FOldFirstRecord := FirstRecord;
end;
procedure TComponentDataLink.EditingChanged;
begin
{$ifdef dbgDBGrid}