dao/DelphiScanner/Utils.pas

unit Utils;

interface
uses
  Controls,
  Graphics, //TColor
  IniFiles,
  Windows //TFileTime
  ;

type
  TStrArray = array of string;

  TUtils = class
    class function split(input: string; schar: Char; s: Integer): string;
    class function Explode(var a: TStrArray; Border, S: string): Integer;

    class procedure RoundCornerOf(Control: TWinControl);
    class function BarCodeValid (ACode: string): boolean;
    class function CheckSumModulo10(const data:string):string;

    class function TColorToHex(Color : TColor) : string;
    class function HexToTColor(sColor : string) : TColor;

    class function AdobeReaderExists(): Boolean;

    class function Sto_GetFmtFileVersion(const FileName: String = ''): String;

    class function CheckUrl(url:string): boolean;

    class function FileTime2DateTime(FileTime: TFileTime): TDateTime;


  end;

implementation

uses StrUtils,
  Types, //TRect ,
  Messages,
  SysUtils, //IntToStr etc
  Registry,
  wininet   //CheckUrl

  ;

{
 VERY fast split function
 this function returns part of a string based on
 constant defineable delimiters, such as ";". So
 SPLIT('this is a test ',' ',3) = 'is' or
 SPLIT('data;another;yet;again;more;',';',4) = 'yet'

 Split function shifts index integer by two to
 be compatible with commonly used PD split function
 gpl 2004 / Juhani Suhonen
}
class function TUtils.split(input: string; schar: Char; s: Integer): string;
var
  c: array of Integer;
  b, t: Integer;
begin
  Dec(s, 2);  // for compatibility with very old & slow split function
  t := 0;     // variable T needs to be initialized...
  setlength(c, Length(input));
  for b := 0 to pred(High(c)) do
  begin
    c[b + 1] := posex(schar, input, succ(c[b]));
    // BREAK LOOP if posex looped (position before previous)
    // or wanted position reached..
    if (c[b + 1] < c[b]) or (s < t) then break
    else
      Inc(t);
  end;
  Result := Copy(input, succ(c[s]), pred(c[s + 1] - c[s]));
end;

class function TUtils.Explode(var a: TStrArray; Border, S: string): Integer;
var
  S2: string;
begin
  Result  := 0;
  S2 := S + Border;
  repeat
    SetLength(A, Length(A) + 1);
    a[Result] := Copy(S2, 0,Pos(Border, S2) - 1);
    Delete(S2, 1,Length(a[Result] + Border));
    Inc(Result);
  until S2 = '';
end;


class procedure TUtils.RoundCornerOf(Control: TWinControl);
var
   R: TRect;
   Rgn: HRGN;
begin
   with Control do
   begin
     R := ClientRect;
//     rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 20, 20) ;
     rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 25, 25) ;
//     rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 30, 30) ;
     Perform(EM_GETRECT, 0, lParam(@r)) ;
     InflateRect(r, - 4, - 4) ;
     Perform(EM_SETRECTNP, 0, lParam(@r)) ;
     SetWindowRgn(Handle, rgn, True) ;
     Invalidate;
   end;
end;


class function TUtils.BarCodeValid (ACode: string): boolean;
var
   I: integer;
   SumOdd, SumEven: integer;
   ADigit, AChecksumDigit: integer;
begin
   SumOdd := 0;
   SumEven := 0;
   for I := 1 to (Length (ACode) - 1) do begin
      ADigit := StrToIntDef (ACode [I], 0);
      if (I MOD 2 = 0) then begin
         SumEven := SumEven + ADigit;
      end else begin
         SumOdd := SumOdd + ADigit;
      end; {if}
   end; {for}
   AChecksumDigit := StrToIntDef (ACode [Length (ACode)], 0);
   Result := ((SumOdd*3 + SumEven + AChecksumDigit) MOD 10 = 0);
end; {--BarCodeValid--}

{ used for EAN 8/13 }
class function TUtils.CheckSumModulo10(const data:string):string;
        var i,fak,sum : Integer;
begin
        sum := 0;
        fak := Length(data);
        for i:=1 to Length(data) do
        begin
                if (fak mod 2) = 0 then
                        sum := sum + (StrToInt(data[i])*1)
                else
                        sum := sum + (StrToInt(data[i])*3);
                dec(fak);
        end;
        if (sum mod 10) = 0 then
                result := data+'0'
        else
                result := data+IntToStr(10-(sum mod 10));
end;


class function TUtils.TColorToHex(Color : TColor) : string;
begin
   Result :=
     IntToHex(GetRValue(Color), 2) +
     IntToHex(GetGValue(Color), 2) +
     IntToHex(GetBValue(Color), 2) ;
end;

class function TUtils.HexToTColor(sColor : string) : TColor;
begin
   Result :=
     RGB(
       StrToInt('$'+Copy(sColor, 1, 2)),
       StrToInt('$'+Copy(sColor, 3, 2)),
       StrToInt('$'+Copy(sColor, 5, 2))
     ) ;
end;


class function TUtils.AdobeReaderExists(): Boolean;
var
  AReg: TRegistry;
begin
  result:= false;
  AReg := TRegistry.Create;
  AReg.RootKey := HKEY_LOCAL_MACHINE;
  if AReg.KeyExists('\SOFTWARE\Adobe\Acrobat Reader') then
    result:= True;
  AReg.Free;
end;


/// <summary>
///   This function reads the file resource of "FileName" and returns
///   the version number as formatted text.</summary>
/// <example>
///   Sto_GetFmtFileVersion() = '4.13.128.0'
///   Sto_GetFmtFileVersion('', '%.2d-%.2d-%.2d') = '04-13-128'
/// </example>
/// <remarks>If "Fmt" is invalid, the function may raise an
///   EConvertError exception.</remarks>
/// <param name="FileName">Full path to exe or dll. If an empty
///   string is passed, the function uses the filename of the
///   running exe or dll.</param>
/// <param name="Fmt">Format string, you can use at most four integer
///   values.</param>
/// <returns>Formatted version number of file, '' if no version
///   resource found.</returns>
class function TUtils.Sto_GetFmtFileVersion(const FileName: String = ''): String;
var
  sFileName: String;
  iBufferSize: DWORD;
  iDummy: DWORD;
  pBuffer: Pointer;
  pFileInfo: Pointer;
  iVer: array[1..4] of Integer;
begin
  // set default value
  Result := '';
  // get filename of exe/dll if no filename is specified
  sFileName := Trim(FileName);
  if (sFileName = '') then
    sFileName := GetModuleName(HInstance);
  // get size of version info (0 if no version info exists)
  iBufferSize := GetFileVersionInfoSize(PChar(sFileName), iDummy);
  if (iBufferSize > 0) then
  begin
    GetMem(pBuffer, iBufferSize);
    try
    // get fixed file info (language independent)
    GetFileVersionInfo(PChar(sFileName), 0, iBufferSize, pBuffer);
    VerQueryValue(pBuffer, '\', pFileInfo, iDummy);
    // read version blocks
    iVer[1] := HiWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionMS);
    iVer[2] := LoWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionMS);
    iVer[3] := HiWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionLS);
    iVer[4] := LoWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionLS);
    finally
      FreeMem(pBuffer);
    end;

    // format result string
    Result := Format('%d.%d.%d.%d', [iVer[1], iVer[2], iVer[3], iVer[4]]);

  end;
end;


class function TUtils.CheckUrl(url:string):boolean;
var
  hSession, hfile: hInternet;
  dwindex,dwcodelen :dword;
  dwcode:array[1..20] of char;
  res : pchar;
begin
  if pos('http://',lowercase(url))=0 then
    url := 'http://'+url;
  Result := false;
  hSession := InternetOpen('InetURL:/1.0',
                            INTERNET_OPEN_TYPE_PRECONFIG,
                            nil,
                            nil,
                            0);
  if assigned(hsession) then
  begin
    hfile := InternetOpenUrl(hsession,
                             pchar(url),
                             nil,
                             0,
                             INTERNET_FLAG_RELOAD,
                             0);
    dwIndex := 0;
    dwCodeLen := 10;
    HttpQueryInfo(hfile,
                  HTTP_QUERY_STATUS_CODE,
                  @dwcode,
                  dwcodeLen,
                  dwIndex);
    res := pchar(@dwcode);
    result:= (res ='200') or (res ='302');
    if assigned(hfile) then
      InternetCloseHandle(hfile);
    InternetCloseHandle(hsession);
  end;

end;


class function TUtils.FileTime2DateTime(FileTime: TFileTime): TDateTime;
var
   LocalFileTime: TFileTime;
   SystemTime: TSystemTime;
begin
   FileTimeToLocalFileTime(FileTime, LocalFileTime) ;
   FileTimeToSystemTime(LocalFileTime, SystemTime) ;
   Result := SystemTimeToDateTime(SystemTime) ;
end;


end.
1	unit Utils;
2
3	interface
4	uses
5	Controls,
6	Graphics, //TColor
7	IniFiles,
8	Windows //TFileTime
9	;
10
11	type
12	TStrArray = array of string;
13
14	TUtils = class
15	class function split(input: string; schar: Char; s: Integer): string;
16	class function Explode(var a: TStrArray; Border, S: string): Integer;
17
18	class procedure RoundCornerOf(Control: TWinControl);
19	class function BarCodeValid (ACode: string): boolean;
20	class function CheckSumModulo10(const data:string):string;
21
22	class function TColorToHex(Color : TColor) : string;
23	class function HexToTColor(sColor : string) : TColor;
24
25	class function AdobeReaderExists(): Boolean;
26
27	class function Sto_GetFmtFileVersion(const FileName: String = ''): String;
28
29	class function CheckUrl(url:string): boolean;
30
31	class function FileTime2DateTime(FileTime: TFileTime): TDateTime;
32
33
34
35
36	end;
37
38	implementation
39
40	uses StrUtils,
41	Types, //TRect ,
42	Messages,
43	SysUtils, //IntToStr etc
44	Registry,
45	wininet //CheckUrl
46
47	;
48
49	{
50	VERY fast split function
51	this function returns part of a string based on
52	constant defineable delimiters, such as ";". So
53	SPLIT('this is a test ',' ',3) = 'is' or
54	SPLIT('data;another;yet;again;more;',';',4) = 'yet'
55
56	Split function shifts index integer by two to
57	be compatible with commonly used PD split function
58	gpl 2004 / Juhani Suhonen
59	}
60	class function TUtils.split(input: string; schar: Char; s: Integer): string;
61	var
62	c: array of Integer;
63	b, t: Integer;
64	begin
65	Dec(s, 2); // for compatibility with very old & slow split function
66	t := 0; // variable T needs to be initialized...
67	setlength(c, Length(input));
68	for b := 0 to pred(High(c)) do
69	begin
70	c[b + 1] := posex(schar, input, succ(c[b]));
71	// BREAK LOOP if posex looped (position before previous)
72	// or wanted position reached..
73	if (c[b + 1] < c[b]) or (s < t) then break
74	else
75	Inc(t);
76	end;
77	Result := Copy(input, succ(c[s]), pred(c[s + 1] - c[s]));
78	end;
79
80	class function TUtils.Explode(var a: TStrArray; Border, S: string): Integer;
81	var
82	S2: string;
83	begin
84	Result := 0;
85	S2 := S + Border;
86	repeat
87	SetLength(A, Length(A) + 1);
88	a[Result] := Copy(S2, 0,Pos(Border, S2) - 1);
89	Delete(S2, 1,Length(a[Result] + Border));
90	Inc(Result);
91	until S2 = '';
92	end;
93
94
95
96	class procedure TUtils.RoundCornerOf(Control: TWinControl);
97	var
98	R: TRect;
99	Rgn: HRGN;
100	begin
101	with Control do
102	begin
103	R := ClientRect;
104	// rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 20, 20) ;
105	rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 25, 25) ;
106	// rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 30, 30) ;
107	Perform(EM_GETRECT, 0, lParam(@r)) ;
108	InflateRect(r, - 4, - 4) ;
109	Perform(EM_SETRECTNP, 0, lParam(@r)) ;
110	SetWindowRgn(Handle, rgn, True) ;
111	Invalidate;
112	end;
113	end;
114
115
116	class function TUtils.BarCodeValid (ACode: string): boolean;
117	var
118	I: integer;
119	SumOdd, SumEven: integer;
120	ADigit, AChecksumDigit: integer;
121	begin
122	SumOdd := 0;
123	SumEven := 0;
124	for I := 1 to (Length (ACode) - 1) do begin
125	ADigit := StrToIntDef (ACode [I], 0);
126	if (I MOD 2 = 0) then begin
127	SumEven := SumEven + ADigit;
128	end else begin
129	SumOdd := SumOdd + ADigit;
130	end; {if}
131	end; {for}
132	AChecksumDigit := StrToIntDef (ACode [Length (ACode)], 0);
133	Result := ((SumOdd*3 + SumEven + AChecksumDigit) MOD 10 = 0);
134	end; {--BarCodeValid--}
135
136	{ used for EAN 8/13 }
137	class function TUtils.CheckSumModulo10(const data:string):string;
138	var i,fak,sum : Integer;
139	begin
140	sum := 0;
141	fak := Length(data);
142	for i:=1 to Length(data) do
143	begin
144	if (fak mod 2) = 0 then
145	sum := sum + (StrToInt(data[i])*1)
146	else
147	sum := sum + (StrToInt(data[i])*3);
148	dec(fak);
149	end;
150	if (sum mod 10) = 0 then
151	result := data+'0'
152	else
153	result := data+IntToStr(10-(sum mod 10));
154	end;
155
156
157	class function TUtils.TColorToHex(Color : TColor) : string;
158	begin
159	Result :=
160	IntToHex(GetRValue(Color), 2) +
161	IntToHex(GetGValue(Color), 2) +
162	IntToHex(GetBValue(Color), 2) ;
163	end;
164
165	class function TUtils.HexToTColor(sColor : string) : TColor;
166	begin
167	Result :=
168	RGB(
169	StrToInt('$'+Copy(sColor, 1, 2)),
170	StrToInt('$'+Copy(sColor, 3, 2)),
171	StrToInt('$'+Copy(sColor, 5, 2))
172	) ;
173	end;
174
175
176	class function TUtils.AdobeReaderExists(): Boolean;
177	var
178	AReg: TRegistry;
179	begin
180	result:= false;
181	AReg := TRegistry.Create;
182	AReg.RootKey := HKEY_LOCAL_MACHINE;
183	if AReg.KeyExists('\SOFTWARE\Adobe\Acrobat Reader') then
184	result:= True;
185	AReg.Free;
186	end;
187
188
189	/// <summary>
190	/// This function reads the file resource of "FileName" and returns
191	/// the version number as formatted text.</summary>
192	/// <example>
193	/// Sto_GetFmtFileVersion() = '4.13.128.0'
194	/// Sto_GetFmtFileVersion('', '%.2d-%.2d-%.2d') = '04-13-128'
195	/// </example>
196	/// <remarks>If "Fmt" is invalid, the function may raise an
197	/// EConvertError exception.</remarks>
198	/// <param name="FileName">Full path to exe or dll. If an empty
199	/// string is passed, the function uses the filename of the
200	/// running exe or dll.</param>
201	/// <param name="Fmt">Format string, you can use at most four integer
202	/// values.</param>
203	/// <returns>Formatted version number of file, '' if no version
204	/// resource found.</returns>
205	class function TUtils.Sto_GetFmtFileVersion(const FileName: String = ''): String;
206	var
207	sFileName: String;
208	iBufferSize: DWORD;
209	iDummy: DWORD;
210	pBuffer: Pointer;
211	pFileInfo: Pointer;
212	iVer: array[1..4] of Integer;
213	begin
214	// set default value
215	Result := '';
216	// get filename of exe/dll if no filename is specified
217	sFileName := Trim(FileName);
218	if (sFileName = '') then
219	sFileName := GetModuleName(HInstance);
220	// get size of version info (0 if no version info exists)
221	iBufferSize := GetFileVersionInfoSize(PChar(sFileName), iDummy);
222	if (iBufferSize > 0) then
223	begin
224	GetMem(pBuffer, iBufferSize);
225	try
226	// get fixed file info (language independent)
227	GetFileVersionInfo(PChar(sFileName), 0, iBufferSize, pBuffer);
228	VerQueryValue(pBuffer, '\', pFileInfo, iDummy);
229	// read version blocks
230	iVer[1] := HiWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionMS);
231	iVer[2] := LoWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionMS);
232	iVer[3] := HiWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionLS);
233	iVer[4] := LoWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionLS);
234	finally
235	FreeMem(pBuffer);
236	end;
237
238	// format result string
239	Result := Format('%d.%d.%d.%d', [iVer[1], iVer[2], iVer[3], iVer[4]]);
240
241	end;
242	end;
243
244
245	class function TUtils.CheckUrl(url:string):boolean;
246	var
247	hSession, hfile: hInternet;
248	dwindex,dwcodelen :dword;
249	dwcode:array[1..20] of char;
250	res : pchar;
251	begin
252	if pos('http://',lowercase(url))=0 then
253	url := 'http://'+url;
254	Result := false;
255	hSession := InternetOpen('InetURL:/1.0',
256	INTERNET_OPEN_TYPE_PRECONFIG,
257	nil,
258	nil,
259	0);
260	if assigned(hsession) then
261	begin
262	hfile := InternetOpenUrl(hsession,
263	pchar(url),
264	nil,
265	0,
266	INTERNET_FLAG_RELOAD,
267	0);
268	dwIndex := 0;
269	dwCodeLen := 10;
270	HttpQueryInfo(hfile,
271	HTTP_QUERY_STATUS_CODE,
272	@dwcode,
273	dwcodeLen,
274	dwIndex);
275	res := pchar(@dwcode);
276	result:= (res ='200') or (res ='302');
277	if assigned(hfile) then
278	InternetCloseHandle(hfile);
279	InternetCloseHandle(hsession);
280	end;
281
282	end;
283
284
285	class function TUtils.FileTime2DateTime(FileTime: TFileTime): TDateTime;
286	var
287	LocalFileTime: TFileTime;
288	SystemTime: TSystemTime;
289	begin
290	FileTimeToLocalFileTime(FileTime, LocalFileTime) ;
291	FileTimeToSystemTime(LocalFileTime, SystemTime) ;
292	Result := SystemTimeToDateTime(SystemTime) ;
293	end;
294
295
296	end.