动态产生器

unit pgDynamicGenerate;
//动态产生器

interface
uses
  pgGUISprite, pgGUIControls, DXSprite, Classes;


type
  TSpriteClass = class of TpgGUISprite;
  //定义一个类型数组

  TClassArray = array[1..6] of TSpriteClass;
const
  ClassArray: TClassArray = (TpgButton, TpgControl, TpgCustomEdit, TpgFontComponent, TpgForm, TpgMouse);

function pgSpriteCreate(SpriteClass: TSpriteClass; AParent: TSprite; const SpriteName: string = ''): TpgGUISprite;
function GenerateComponent(const ClassName: string; AParent: TSprite; const SpriteName: string = ''): TpgGUISprite;
procedure initRegisterClasses;
procedure finaUnRegisterClass;

implementation

function pgSpriteCreate(SpriteClass: TSpriteClass; AParent: TSprite; const SpriteName: string = ''): TpgGUISprite;
begin
  Result := SpriteClass.Create(AParent);
  with TpgGUISprite(Result) do
  begin
    if ControlName <> '' then
      ControlName := SpriteName;
  end;
end;

function GenerateComponent(const ClassName: string; AParent: TSprite; const SpriteName: string = ''): TpgGUISprite;
var
  mClass: TSpriteClass;
  mObj: TpgGUISprite;
begin
  Result := nil;
  mClass := TSpriteClass(GetClass(ClassName));
  if mClass = nil then exit
  else
  begin
    mObj := mClass.Create(AParent);
    TpgGUISprite(mObj).ControlName := SpriteName;
    Result := mObj;
  end;
end;

procedure initRegisterClasses;
var
  i: Integer;
  className: TPersistentClass;
begin
  for i:=Low(ClassArray) to High(ClassArray) do
  begin
    className:= ClassArray[i];
    RegisterClasses(className);
  end;
end;

procedure finaUnRegisterClass;
var
  i: Integer;
  className: TPersistentClass;
begin
  for i:=Low(ClassArray) to High(ClassArray) do
  begin
    className:= ClassArray[i];
    UnRegisterClass(className);
  end;
end;

initialization
  initRegisterClasses;
finalization
  finaUnRegisterClass;

end.

调用方法：

mDXedit := TpgCustomEdit(GenerateComponent('TpgCustomEdit', dxForm));