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

136 lines
4.3 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: JvDBActionsEngineControlCxGrid.Pas, released on 2004-12-30.
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: JvControlActionsEngineCxTreeList.pas 12461 2009-08-14 17:21:33Z obones $
unit JvControlActionsEngineCxTreeList;
{$I jvcl.inc}
interface
uses
{$IFDEF UNITVERSIONING}
JclUnitVersioning,
{$ENDIF UNITVERSIONING}
Forms, Controls, Classes, DB,
{$IFDEF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
cxTL,
{$ENDIF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
JvControlActionsEngine;
{$IFDEF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
type
TJvControlActioncxGridEngine = class(TJvControlActionEngine)
private
protected
function GetSupportedOperations: TJvControlActionOperations; override;
function GetTreeList(AActionComponent: TComponent): TcxCustomTreeList;
public
function ExecuteOperation(const aOperation: TJvControlActionOperation; const
aActionControl: TControl): Boolean; override;
function SupportsComponent(aActionComponent: TComponent): Boolean; override;
end;
{$ENDIF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
{$IFDEF UNITVERSIONING}
const
UnitVersioning: TUnitVersionInfo = (
RCSfile: '$URL: https://jvcl.svn.sourceforge.net/svnroot/jvcl/tags/JVCL3_39/run/JvControlActionsEngineCxTreeList.pas $';
Revision: '$Revision: 12461 $';
Date: '$Date: 2009-08-14 19:21:33 +0200 (ven., 14 août 2009) $';
LogPath: 'JVCL\run'
);
{$ENDIF UNITVERSIONING}
implementation
uses
{$IFDEF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
{$ENDIF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
Variants, SysUtils, Grids;
//=== { TJvDatabaseActionDevExpCxGridControlEngine } =========================
{$IFDEF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
function TJvControlActioncxGridEngine.ExecuteOperation(const aOperation:
TJvControlActionOperation; const aActionControl: TControl): Boolean;
begin
Result := false;
if Assigned(GetTreeList(aActionControl)) then
Case aOperation of
caoCollapse : GetTreeList(aActionControl).FullCollapse;
caoExpand : GetTreeList(aActionControl).FullExpand;
caoOptimizeColumns : GetTreeList(aActionControl).ApplyBestFit;
End;
end;
function TJvControlActioncxGridEngine.GetSupportedOperations:
TJvControlActionOperations;
begin
Result := [caoCollapse, caoExpand, caoOptimizeColumns];
end;
function TJvControlActioncxGridEngine.GetTreeList(AActionComponent:
TComponent): TcxCustomTreeList;
begin
if Assigned(AActionComponent) then
if AActionComponent is TcxCustomTreeList then
Result := TcxCustomTreeList(AActionComponent)
else
Result := nil
else
Result := nil;
end;
function TJvControlActioncxGridEngine.SupportsComponent(aActionComponent:
TComponent): Boolean;
begin
Result := Assigned(GetTreeList(AActionComponent));
end;
{$ENDIF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
procedure InitActionEngineList;
begin
{$IFDEF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
RegisterControlActionEngine(TJvControlActioncxGridEngine);
{$ENDIF USE_3RDPARTY_DEVEXPRESS_CXTREELIST}
end;
initialization
{$IFDEF UNITVERSIONING}
RegisterUnitVersion(HInstance, UnitVersioning);
{$ENDIF UNITVERSIONING}
InitActionEngineList;
finalization
{$IFDEF UNITVERSIONING}
UnregisterUnitVersion(HInstance);
{$ENDIF UNITVERSIONING}
end.