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customdrawn: Regression fix: reimplements selection deleting for TCDEdit

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git-svn-id: trunk@33503 -
This commit is contained in:
sekelsenmat 2011-11-13 07:47:48 +00:00
parent 39d02186ce
commit 5b030ad856
1 changed files with 36 additions and 1 deletions
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37
components/customdrawn/customdrawncontrols.pas
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@ -163,10 +163,12 @@ type
FEditState: TCDEditStateEx; // Points to the same object as FStateEx, so don't Free!
procedure HandleCaretTimer(Sender: TObject);
procedure DoDeleteSelection;
procedure DoClearSelection;
procedure DoManageVisibleTextStart;
function GetText: string;
procedure SetText(AValue: string);
function MousePosToCaretPos(X, Y: Integer): TPoint;
function IsSomethingSelected: Boolean;
protected
function GetControlId: TCDControlID; override;
procedure CreateControlStateEx; override;
@ -933,6 +935,33 @@ begin
end;
procedure TCDEdit.DoDeleteSelection;
var
lSelLeftPos, lSelRightPos, lSelLength: Integer;
lControlText, lTextLeft, lTextRight: string;
begin
if IsSomethingSelected then
begin
lSelLeftPos := FEditState.SelStart.X;
if FEditState.SelLength < 0 then lSelLeftPos := lSelLeftPos + FEditState.SelLength;
lSelRightPos := FEditState.SelStart.X;
if FEditState.SelLength > 0 then lSelRightPos := lSelRightPos + FEditState.SelLength;
lSelLength := FEditState.SelLength;
if lSelLength < 0 then lSelLength := lSelLength * -1;
lControlText := Text;
// Text left of the selection
lTextLeft := UTF8Copy(lControlText, FEditState.VisibleTextStart.X, lSelLeftPos-FEditState.VisibleTextStart.X+1);
// Text right of the selection
lTextRight := UTF8Copy(lControlText, lSelLeftPos+lSelLength+1, Length(lControlText));
Text := lTextLeft + lTextRight;
end;
DoClearSelection;
end;
procedure TCDEdit.DoClearSelection;
begin
FEditState.SelStart.X := 1;
FEditState.SelLength := 0;
@ -959,6 +988,7 @@ end;
procedure TCDEdit.SetText(AValue: string);
begin
Caption := AValue;
Invalidate;
end;
// Result.X -> returns a zero-based position of the caret
@ -1001,6 +1031,11 @@ begin
Result.X := lBestMatch+(FEditState.VisibleTextStart.X-1);
end;
function TCDEdit.IsSomethingSelected: Boolean;
begin
Result := FEditState.SelLength <> 0;
end;
procedure TCDEdit.DoEnter;
begin
FCaretTimer.Enabled := True;
@ -1012,7 +1047,7 @@ procedure TCDEdit.DoExit;
begin
FCaretTimer.Enabled := False;
FEditState.CaretIsVisible := False;
DoDeleteSelection();
DoClearSelection();
inherited DoExit;
end;