Componentes.Terceros.jvcl/official/3.39/run/JvControlActionsEngineTreeView.pas
2010-01-18 16:55:50 +00:00

117 lines
3.5 KiB
ObjectPascal

{-----------------------------------------------------------------------------
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1.1.html
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either expressed or implied. See the License for
the specific language governing rights and limitations under the License.
The Original Code is: JvDBActions.Pas, released on 2007-03-11.
The Initial Developer of the Original Code is Jens Fudickar [jens dott fudicker att oratool dott de]
Portions created by Jens Fudickar are Copyright (C) 2002 Jens Fudickar.
All Rights Reserved.
Contributor(s): -
You may retrieve the latest version of this file at the Project JEDI's JVCL home page,
located at http://jvcl.delphi-jedi.org
Known Issues:
-----------------------------------------------------------------------------}
// $Id: JvControlActionsEngineTreeView.pas 12461 2009-08-14 17:21:33Z obones $
unit JvControlActionsEngineTreeView;
{$I jvcl.inc}
interface
uses
{$IFDEF UNITVERSIONING}
JclUnitVersioning,
{$ENDIF UNITVERSIONING}
{$IFDEF MSWINDOWS}
Windows, ImgList, Graphics, ComCtrls,
{$ENDIF MSWINDOWS}
{$IFDEF UNIX}
QWindows, QImgList, QGraphics, QComCtrls,
{$ENDIF UNIX}
Forms, Controls, Classes, JvControlActionsEngine;
type
TJvControlActionTreeViewEngine = class(TJvControlActionEngine)
private
protected
function GetSupportedOperations: TJvControlActionOperations; override;
public
function ExecuteOperation(const aOperation: TJvControlActionOperation; const
aActionControl: TControl): Boolean; override;
function SupportsComponent(aActionComponent: TComponent): Boolean; override;
end;
{$IFDEF UNITVERSIONING}
const
UnitVersioning: TUnitVersionInfo = (
RCSfile: '$URL: https://jvcl.svn.sourceforge.net/svnroot/jvcl/tags/JVCL3_39/run/JvControlActionsEngineTreeView.pas $';
Revision: '$Revision: 12461 $';
Date: '$Date: 2009-08-14 19:21:33 +0200 (ven., 14 août 2009) $';
LogPath: 'JVCL\run'
);
{$ENDIF UNITVERSIONING}
implementation
uses
SysUtils, Grids, TypInfo, StrUtils, Variants, Dialogs, StdCtrls, Clipbrd;
procedure InitActionEngineList;
begin
RegisterControlActionEngine (TJvControlActionTreeViewEngine);
end;
function TJvControlActionTreeViewEngine.ExecuteOperation(const aOperation:
TJvControlActionOperation; const aActionControl: TControl): Boolean;
begin
Result := true;
if Assigned(aActionControl) and (aActionControl is TCustomTreeView) then
Case aOperation of
caoCollapse : TCustomTreeView(aActionControl).FullCollapse;
caoExpand : TCustomTreeView(aActionControl).FullExpand;
else
Result := false;
End
else
Result := false;
end;
function TJvControlActionTreeViewEngine.GetSupportedOperations:
TJvControlActionOperations;
begin
Result := [caoCollapse, caoExpand];
end;
function TJvControlActionTreeViewEngine.SupportsComponent(aActionComponent:
TComponent): Boolean;
begin
Result := aActionComponent is TCustomTreeView;
end;
initialization
{$IFDEF UNITVERSIONING}
RegisterUnitVersion(HInstance, UnitVersioning);
{$ENDIF UNITVERSIONING}
InitActionEngineList;
finalization
{$IFDEF UNITVERSIONING}
UnregisterUnitVersion(HInstance);
{$ENDIF UNITVERSIONING}
end.