tpsystools_4.04/source/StNVBits.pas

// Upgraded to Delphi 2009: Sebastian Zierer

(* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1
 *
 * 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/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is TurboPower SysTools
 *
 * The Initial Developer of the Original Code is
 * TurboPower Software
 *
 * Portions created by the Initial Developer are Copyright (C) 1996-2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * ***** END LICENSE BLOCK ***** *)

{*********************************************************}
{* SysTools: StNVBits.pas 4.04                           *}
{*********************************************************}
{* SysTools: non visual component for TStBits            *}
{*********************************************************}

{$I StDefine.inc}

unit StNVBits;

interface

uses
  Windows,
  Classes,
  StBase, StBits, StNVCont;

type
  TStNVBits = class(TStNVContainerBase)
  {.Z+}
  protected {private}
    {property variables}
    FContainer : TStBits; {instance of the container}
    FMaxBits   : LongInt;

    {property methods}
    procedure SetMaxBits(Value : LongInt);

  protected
    {virtual property methods}
    function GetOnLoadData : TStLoadDataEvent;
      override;
    function GetOnStoreData : TStStoreDataEvent;
      override;
    procedure SetOnLoadData(Value : TStLoadDataEvent);
      override;
    procedure SetOnStoreData(Value : TStStoreDataEvent);
      override;

  public
    constructor Create(AOwner : TComponent);
      override;
    destructor Destroy;
      override;
  {.Z-}

    property Container : TStBits
      read FContainer;

  published
    property MaxBits : LongInt
      read FMaxBits
      write SetMaxBits default 100;

    property OnLoadData;
    property OnStoreData;
  end;


implementation

{*** TStNVBits ***}

constructor TStNVBits.Create(AOwner : TComponent);
begin
  inherited Create(AOwner);

  {defaults}
  FMaxBits := 100;

  if Classes.GetClass(TStBits.ClassName) = nil then
    RegisterClass(TStBits);

  FContainer := TStBits.Create(FMaxBits-1);
end;

destructor TStNVBits.Destroy;
begin
  FContainer.Free;
  FContainer := nil;

  inherited Destroy;
end;

function TStNVBits.GetOnLoadData : TStLoadDataEvent;
begin
  Result := FContainer.OnLoadData;
end;

function TStNVBits.GetOnStoreData : TStStoreDataEvent;
begin
  Result := FContainer.OnStoreData;
end;

procedure TStNVBits.SetMaxBits(Value : LongInt);
var
  HoldOnLoadData  : TStLoadDataEvent;
  HoldOnStoreData : TStStoreDataEvent;
begin
  {setting MaxBits will destroy exisiting data}
  if Value < 0 then
    Value := 0;
  FMaxBits := Value;

  HoldOnLoadData := FContainer.OnLoadData;
  HoldOnStoreData := FContainer.OnStoreData;
  FContainer.Free;
  FContainer := TStBits.Create(FMaxBits-1);
  FContainer.OnLoadData := HoldOnLoadData;
  FContainer.OnStoreData := HoldOnStoreData;
end;

procedure TStNVBits.SetOnLoadData(Value : TStLoadDataEvent);
begin
  FContainer.OnLoadData := Value;
end;

procedure TStNVBits.SetOnStoreData(Value : TStStoreDataEvent);
begin
  FContainer.OnStoreData := Value;
end;


end.
1	// Upgraded to Delphi 2009: Sebastian Zierer
2
3	(* *** BEGIN LICENSE BLOCK ***
4	* Version: MPL 1.1
5	*
6	* The contents of this file are subject to the Mozilla Public License Version
7	* 1.1 (the "License"); you may not use this file except in compliance with
8	* the License. You may obtain a copy of the License at
9	* http://www.mozilla.org/MPL/
10	*
11	* Software distributed under the License is distributed on an "AS IS" basis,
12	* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13	* for the specific language governing rights and limitations under the
14	* License.
15	*
16	* The Original Code is TurboPower SysTools
17	*
18	* The Initial Developer of the Original Code is
19	* TurboPower Software
20	*
21	* Portions created by the Initial Developer are Copyright (C) 1996-2002
22	* the Initial Developer. All Rights Reserved.
23	*
24	* Contributor(s):
25	*
26	* *** END LICENSE BLOCK *** *)
27
28	{*********************************************************}
29	{* SysTools: StNVBits.pas 4.04 *}
30	{*********************************************************}
31	{* SysTools: non visual component for TStBits *}
32	{*********************************************************}
33
34	{$I StDefine.inc}
35
36	unit StNVBits;
37
38	interface
39
40	uses
41	Windows,
42	Classes,
43	StBase, StBits, StNVCont;
44
45	type
46	TStNVBits = class(TStNVContainerBase)
47	{.Z+}
48	protected {private}
49	{property variables}
50	FContainer : TStBits; {instance of the container}
51	FMaxBits : LongInt;
52
53	{property methods}
54	procedure SetMaxBits(Value : LongInt);
55
56	protected
57	{virtual property methods}
58	function GetOnLoadData : TStLoadDataEvent;
59	override;
60	function GetOnStoreData : TStStoreDataEvent;
61	override;
62	procedure SetOnLoadData(Value : TStLoadDataEvent);
63	override;
64	procedure SetOnStoreData(Value : TStStoreDataEvent);
65	override;
66
67	public
68	constructor Create(AOwner : TComponent);
69	override;
70	destructor Destroy;
71	override;
72	{.Z-}
73
74	property Container : TStBits
75	read FContainer;
76
77	published
78	property MaxBits : LongInt
79	read FMaxBits
80	write SetMaxBits default 100;
81
82	property OnLoadData;
83	property OnStoreData;
84	end;
85
86
87	implementation
88
89	{* TStNVBits *}
90
91	constructor TStNVBits.Create(AOwner : TComponent);
92	begin
93	inherited Create(AOwner);
94
95	{defaults}
96	FMaxBits := 100;
97
98	if Classes.GetClass(TStBits.ClassName) = nil then
99	RegisterClass(TStBits);
100
101	FContainer := TStBits.Create(FMaxBits-1);
102	end;
103
104	destructor TStNVBits.Destroy;
105	begin
106	FContainer.Free;
107	FContainer := nil;
108
109	inherited Destroy;
110	end;
111
112	function TStNVBits.GetOnLoadData : TStLoadDataEvent;
113	begin
114	Result := FContainer.OnLoadData;
115	end;
116
117	function TStNVBits.GetOnStoreData : TStStoreDataEvent;
118	begin
119	Result := FContainer.OnStoreData;
120	end;
121
122	procedure TStNVBits.SetMaxBits(Value : LongInt);
123	var
124	HoldOnLoadData : TStLoadDataEvent;
125	HoldOnStoreData : TStStoreDataEvent;
126	begin
127	{setting MaxBits will destroy exisiting data}
128	if Value < 0 then
129	Value := 0;
130	FMaxBits := Value;
131
132	HoldOnLoadData := FContainer.OnLoadData;
133	HoldOnStoreData := FContainer.OnStoreData;
134	FContainer.Free;
135	FContainer := TStBits.Create(FMaxBits-1);
136	FContainer.OnLoadData := HoldOnLoadData;
137	FContainer.OnStoreData := HoldOnStoreData;
138	end;
139
140	procedure TStNVBits.SetOnLoadData(Value : TStLoadDataEvent);
141	begin
142	FContainer.OnLoadData := Value;
143	end;
144
145	procedure TStNVBits.SetOnStoreData(Value : TStStoreDataEvent);
146	begin
147	FContainer.OnStoreData := Value;
148	end;
149
150
151	end.