current/FileClasses/_Extensions.pas

unit _Extensions;

interface

uses
  _FileTypes, _TreeElement;

type
  TExtension = class(TTreeElement)
      function GetChildCount: Integer; override;
      function GetChild(ID: Integer): TTreeElement; override;
      function GetCaption: String; override;
    private
      FExt: String;
      FFiles: array of Integer;
    public
      constructor Create(ConnectionID: Integer; Ext: String); virtual;
      procedure InitList;
  end;

  TExtensions = class(TTreeElement)
      function GetChildCount: Integer; override;
      function GetChild(ID: Integer): TTreeElement; override;
      function GetCaption: String; override;
    private
      FExtensions: array of TExtension;
    public
      constructor Create(DataAccess: TObject; ConnectionID: Integer);
      function GetExt(Ext: String): TExtension;
      procedure AddExt(Ext: String);
  end;


implementation

uses
  Classes, StrUtils, SysUtils, ConnectionManager, TypeDefs, DataAccess, _MetaManager;

{ TExtension }

constructor TExtension.Create(ConnectionID: Integer; Ext: String);
begin
  FConnectionID := ConnectionID;
  FExt := Ext;
end;

function TExtension.GetCaption: String;
begin
  Result := FExt;
end;

function TExtension.GetChild(ID: Integer): TTreeElement;
var
  Meta: TMetaManager;
begin
  Meta := ConManager.Connection[FConnectionID].MetaData;
  Meta.InitFile(FFiles[ID]);
  Result := Meta.FileById[FFiles[ID]];
end;

function TExtension.GetChildCount: Integer;
begin
  Result := Length(FFiles);
end;

procedure TExtension.InitList;
var
  files: TStrings;
  i: Integer;
  fid: Integer;
  finfo: TFileInfo;
begin
  files := TStringList.Create;
  files := ConManager.Connection[FConnectionID].GetFilesList(FExt, '', False, ST_NameAsc);
  if files.Count > 0 then
  begin
    for i := 0 to files.Count - 1 do
    begin
      fid := StrToInt(MidStr(files.Strings[i], 1, 5));
      finfo := ConManager.Connection[FConnectionID].GetFileInfo(fid);
      if Length(finfo.Name) > 0 then
      begin
        SetLength(FFiles, Length(FFiles) + 1);
        FFiles[High(FFiles)] := fid;
      end;
    end;
  end;
  files.Free;
end;


{ TExtensions }

function TExtensions.GetCaption: String;
begin
  Result := '';
end;

function TExtensions.GetChild(ID: Integer): TTreeElement;
begin
  Result := FExtensions[ID];
end;

function TExtensions.GetChildCount: Integer;
begin
  Result := Length(FExtensions);
end;

constructor TExtensions.Create(DataAccess: TObject; ConnectionID: Integer);
var
  files: TStrings;
  i: Integer;
  fid: Integer;
  finfo: TFileInfo;
begin
  FConnectionID := ConnectionID;
  files := TStringList.Create;
  files := TDataAccess(DataAccess).GetFilesList('', '', False, ST_IDAsc);
  SetLength(FExtensions, 0);
  if files.Count > 0 then
  begin
    for i := 0 to files.Count - 1 do
    begin
      fid := StrToInt(MidStr(files.Strings[i], 1, 5));
      finfo := TDataAccess(DataAccess).GetFileInfo(fid);
      if Length(finfo.Name) > 0 then
        if not Assigned(GetExt(finfo.Extension)) then
          AddExt(finfo.Extension);
    end;
  end;
  files.Free;
end;


function TExtensions.GetExt(Ext: String): TExtension;
var
  i: Integer;
begin
  Result := nil;
  if Length(FExtensions) > 0 then
    for i := 0 to High(FExtensions) do
      if FExtensions[i].GetCaption = Ext then
      begin
        Result := FExtensions[i];
        Break;
      end;
end;

procedure TExtensions.AddExt(Ext: String);
var
  i: Integer;
begin
  SetLength(FExtensions, Length(FExtensions) + 1);
  for i := High(FExtensions) downto 1 do
  begin
    if FExtensions[i-1].GetCaption < Ext then
    begin
      FExtensions[i] := TExtension.Create(FConnectionID, Ext);
      Break;
    end
    else
      FExtensions[i] := FExtensions[i-1];
  end;
  if i = 0 then
    FExtensions[0] := TExtension.Create(FConnectionID, Ext);
end;


end.
Revision:	233
Committed:	Fri Jun 29 12:38:24 2007 UTC (18 years, 3 months ago) by alloc
Content type:	text/x-pascal
File size:	3975 byte(s)
Log Message:
#	Content
1	unit _Extensions;
2
3	interface
4
5	uses
6	_FileTypes, _TreeElement;
7
8	type
9	TExtension = class(TTreeElement)
10	function GetChildCount: Integer; override;
11	function GetChild(ID: Integer): TTreeElement; override;
12	function GetCaption: String; override;
13	private
14	FExt: String;
15	FFiles: array of Integer;
16	public
17	constructor Create(ConnectionID: Integer; Ext: String); virtual;
18	procedure InitList;
19	end;
20
21	TExtensions = class(TTreeElement)
22	function GetChildCount: Integer; override;
23	function GetChild(ID: Integer): TTreeElement; override;
24	function GetCaption: String; override;
25	private
26	FExtensions: array of TExtension;
27	public
28	constructor Create(DataAccess: TObject; ConnectionID: Integer);
29	function GetExt(Ext: String): TExtension;
30	procedure AddExt(Ext: String);
31	end;
32
33
34
35	implementation
36
37	uses
38	Classes, StrUtils, SysUtils, ConnectionManager, TypeDefs, DataAccess, _MetaManager;
39
40	{ TExtension }
41
42	constructor TExtension.Create(ConnectionID: Integer; Ext: String);
43	begin
44	FConnectionID := ConnectionID;
45	FExt := Ext;
46	end;
47
48	function TExtension.GetCaption: String;
49	begin
50	Result := FExt;
51	end;
52
53	function TExtension.GetChild(ID: Integer): TTreeElement;
54	var
55	Meta: TMetaManager;
56	begin
57	Meta := ConManager.Connection[FConnectionID].MetaData;
58	Meta.InitFile(FFiles[ID]);
59	Result := Meta.FileById[FFiles[ID]];
60	end;
61
62	function TExtension.GetChildCount: Integer;
63	begin
64	Result := Length(FFiles);
65	end;
66
67	procedure TExtension.InitList;
68	var
69	files: TStrings;
70	i: Integer;
71	fid: Integer;
72	finfo: TFileInfo;
73	begin
74	files := TStringList.Create;
75	files := ConManager.Connection[FConnectionID].GetFilesList(FExt, '', False, ST_NameAsc);
76	if files.Count > 0 then
77	begin
78	for i := 0 to files.Count - 1 do
79	begin
80	fid := StrToInt(MidStr(files.Strings[i], 1, 5));
81	finfo := ConManager.Connection[FConnectionID].GetFileInfo(fid);
82	if Length(finfo.Name) > 0 then
83	begin
84	SetLength(FFiles, Length(FFiles) + 1);
85	FFiles[High(FFiles)] := fid;
86	end;
87	end;
88	end;
89	files.Free;
90	end;
91
92
93	{ TExtensions }
94
95	function TExtensions.GetCaption: String;
96	begin
97	Result := '';
98	end;
99
100	function TExtensions.GetChild(ID: Integer): TTreeElement;
101	begin
102	Result := FExtensions[ID];
103	end;
104
105	function TExtensions.GetChildCount: Integer;
106	begin
107	Result := Length(FExtensions);
108	end;
109
110	constructor TExtensions.Create(DataAccess: TObject; ConnectionID: Integer);
111	var
112	files: TStrings;
113	i: Integer;
114	fid: Integer;
115	finfo: TFileInfo;
116	begin
117	FConnectionID := ConnectionID;
118	files := TStringList.Create;
119	files := TDataAccess(DataAccess).GetFilesList('', '', False, ST_IDAsc);
120	SetLength(FExtensions, 0);
121	if files.Count > 0 then
122	begin
123	for i := 0 to files.Count - 1 do
124	begin
125	fid := StrToInt(MidStr(files.Strings[i], 1, 5));
126	finfo := TDataAccess(DataAccess).GetFileInfo(fid);
127	if Length(finfo.Name) > 0 then
128	if not Assigned(GetExt(finfo.Extension)) then
129	AddExt(finfo.Extension);
130	end;
131	end;
132	files.Free;
133	end;
134
135
136	function TExtensions.GetExt(Ext: String): TExtension;
137	var
138	i: Integer;
139	begin
140	Result := nil;
141	if Length(FExtensions) > 0 then
142	for i := 0 to High(FExtensions) do
143	if FExtensions[i].GetCaption = Ext then
144	begin
145	Result := FExtensions[i];
146	Break;
147	end;
148	end;
149
150	procedure TExtensions.AddExt(Ext: String);
151	var
152	i: Integer;
153	begin
154	SetLength(FExtensions, Length(FExtensions) + 1);
155	for i := High(FExtensions) downto 1 do
156	begin
157	if FExtensions[i-1].GetCaption < Ext then
158	begin
159	FExtensions[i] := TExtension.Create(FConnectionID, Ext);
160	Break;
161	end
162	else
163	FExtensions[i] := FExtensions[i-1];
164	end;
165	if i = 0 then
166	FExtensions[0] := TExtension.Create(FConnectionID, Ext);
167	end;
168
169
170
171	end.