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{
fpGUI - Free Pascal GUI Library
Style Manager as a Singleton
Copyright (C) 2000 - 2006 See the file AUTHORS.txt, included in this
distribution, for details of the copyright.
See the file COPYING.modifiedLGPL, included in this distribution,
for details about redistributing fpGUI.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
}
unit stylemanager;
{$mode objfpc}{$H+}
interface
uses
Classes
,fpGUI
;
type
TStyleManager = class(TObject)
private
FDefaultStyle: TStyle;
FUserStyle: TStyle;
function GetDefaultStyle: TStyle;
public
property DefaultStyle: TStyle read GetDefaultStyle;
procedure SetStyle(pNewStyle: TStyle);
end;
// lazy mans singleton
function gStyleManager: TStyleManager;
implementation
uses
fpGFX
;
var
uStyleManager: TStyleManager;
{ Creation is deferred to the first request }
function gStyleManager: TStyleManager;
begin
if uStyleManager = nil then
uStyleManager := TStyleManager.Create;
result := uStyleManager;
end;
{ TStyleManager }
function TStyleManager.GetDefaultStyle: TStyle;
begin
if Assigned(FUserStyle) then
Result := FUserStyle
else
begin
if not Assigned(FDefaultStyle) then
FDefaultStyle := TDefaultStyle.Create(GFApplication);
Result := FDefaultStyle;
end;
end;
procedure TStyleManager.SetStyle(pNewStyle: TStyle);
begin
if Assigned(FUserStyle) then
FUserStyle.Free;
FUserStyle := pNewStyle;
end;
initialization
uStyleManager := nil;
finalization
uStyleManager.Free;
end.
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