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	torben	2682	unit Utils;
2
3			interface
4			uses
5			Controls,
6	torben	2695	Graphics, //TColor
7			IniFiles,
8			Windows //TFileTime
9	torben	2682	;
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	torben	2685	class function AdobeReaderExists(): Boolean;
26	torben	2682
27	torben	2693	class function Sto_GetFmtFileVersion(const FileName: String = ''): String;
28	torben	2682
29	torben	2694	class function CheckUrl(url:string): boolean;
30	torben	2682
31	torben	2695	class function FileTime2DateTime(FileTime: TFileTime): TDateTime;
32	torben	2685
33	torben	2693
34	torben	2694
35	torben	2695
36	torben	2682	end;
37
38			implementation
39
40			uses StrUtils,
41			Types, //TRect ,
42			Messages,
43	torben	2685	SysUtils, //IntToStr etc
44	torben	2694	Registry,
45			wininet //CheckUrl
46	torben	2685
47	torben	2682	;
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	torben	2685	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	torben	2693
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	torben	2694	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	torben	2695
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	torben	2682	end.