dao/DelphiScanner/Utils.pas

unit Utils;

interface
uses
  Controls,
  Graphics //TColor
  ;

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;


  end;

implementation

uses StrUtils,
  Types, //TRect ,
  Windows,
  Messages,
  SysUtils, //IntToStr etc
  Registry

  ;

{
 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;


end.
1	torben	2682	unit Utils;
2
3			interface
4			uses
5			Controls,
6			Graphics //TColor
7			;
8
9			type
10			TStrArray = array of string;
11
12			TUtils = class
13			class function split(input: string; schar: Char; s: Integer): string;
14			class function Explode(var a: TStrArray; Border, S: string): Integer;
15
16			class procedure RoundCornerOf(Control: TWinControl);
17			class function BarCodeValid (ACode: string): boolean;
18			class function CheckSumModulo10(const data:string):string;
19
20			class function TColorToHex(Color : TColor) : string;
21			class function HexToTColor(sColor : string) : TColor;
22
23	torben	2685	class function AdobeReaderExists(): Boolean;
24	torben	2682
25	torben	2693	class function Sto_GetFmtFileVersion(const FileName: String = ''): String;
26	torben	2682
27
28	torben	2685
29	torben	2693
30	torben	2682	end;
31
32			implementation
33
34			uses StrUtils,
35			Types, //TRect ,
36			Windows,
37			Messages,
38	torben	2685	SysUtils, //IntToStr etc
39			Registry
40
41	torben	2682	;
42
43			{
44			VERY fast split function
45			this function returns part of a string based on
46			constant defineable delimiters, such as ";". So
47			SPLIT('this is a test ',' ',3) = 'is' or
48			SPLIT('data;another;yet;again;more;',';',4) = 'yet'
49
50			Split function shifts index integer by two to
51			be compatible with commonly used PD split function
52			gpl 2004 / Juhani Suhonen
53			}
54			class function TUtils.split(input: string; schar: Char; s: Integer): string;
55			var
56			c: array of Integer;
57			b, t: Integer;
58			begin
59			Dec(s, 2); // for compatibility with very old & slow split function
60			t := 0; // variable T needs to be initialized...
61			setlength(c, Length(input));
62			for b := 0 to pred(High(c)) do
63			begin
64			c[b + 1] := posex(schar, input, succ(c[b]));
65			// BREAK LOOP if posex looped (position before previous)
66			// or wanted position reached..
67			if (c[b + 1] < c[b]) or (s < t) then break
68			else
69			Inc(t);
70			end;
71			Result := Copy(input, succ(c[s]), pred(c[s + 1] - c[s]));
72			end;
73
74			class function TUtils.Explode(var a: TStrArray; Border, S: string): Integer;
75			var
76			S2: string;
77			begin
78			Result := 0;
79			S2 := S + Border;
80			repeat
81			SetLength(A, Length(A) + 1);
82			a[Result] := Copy(S2, 0,Pos(Border, S2) - 1);
83			Delete(S2, 1,Length(a[Result] + Border));
84			Inc(Result);
85			until S2 = '';
86			end;
87
88
89
90			class procedure TUtils.RoundCornerOf(Control: TWinControl);
91			var
92			R: TRect;
93			Rgn: HRGN;
94			begin
95			with Control do
96			begin
97			R := ClientRect;
98			// rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 20, 20) ;
99			rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 25, 25) ;
100			// rgn := CreateRoundRectRgn(R.Left, R.Top, R.Right, R.Bottom, 30, 30) ;
101			Perform(EM_GETRECT, 0, lParam(@r)) ;
102			InflateRect(r, - 4, - 4) ;
103			Perform(EM_SETRECTNP, 0, lParam(@r)) ;
104			SetWindowRgn(Handle, rgn, True) ;
105			Invalidate;
106			end;
107			end;
108
109
110			class function TUtils.BarCodeValid (ACode: string): boolean;
111			var
112			I: integer;
113			SumOdd, SumEven: integer;
114			ADigit, AChecksumDigit: integer;
115			begin
116			SumOdd := 0;
117			SumEven := 0;
118			for I := 1 to (Length (ACode) - 1) do begin
119			ADigit := StrToIntDef (ACode [I], 0);
120			if (I MOD 2 = 0) then begin
121			SumEven := SumEven + ADigit;
122			end else begin
123			SumOdd := SumOdd + ADigit;
124			end; {if}
125			end; {for}
126			AChecksumDigit := StrToIntDef (ACode [Length (ACode)], 0);
127			Result := ((SumOdd*3 + SumEven + AChecksumDigit) MOD 10 = 0);
128			end; {--BarCodeValid--}
129
130			{ used for EAN 8/13 }
131			class function TUtils.CheckSumModulo10(const data:string):string;
132			var i,fak,sum : Integer;
133			begin
134			sum := 0;
135			fak := Length(data);
136			for i:=1 to Length(data) do
137			begin
138			if (fak mod 2) = 0 then
139			sum := sum + (StrToInt(data[i])*1)
140			else
141			sum := sum + (StrToInt(data[i])*3);
142			dec(fak);
143			end;
144			if (sum mod 10) = 0 then
145			result := data+'0'
146			else
147			result := data+IntToStr(10-(sum mod 10));
148			end;
149
150
151			class function TUtils.TColorToHex(Color : TColor) : string;
152			begin
153			Result :=
154			IntToHex(GetRValue(Color), 2) +
155			IntToHex(GetGValue(Color), 2) +
156			IntToHex(GetBValue(Color), 2) ;
157			end;
158
159			class function TUtils.HexToTColor(sColor : string) : TColor;
160			begin
161			Result :=
162			RGB(
163			StrToInt('$'+Copy(sColor, 1, 2)),
164			StrToInt('$'+Copy(sColor, 3, 2)),
165			StrToInt('$'+Copy(sColor, 5, 2))
166			) ;
167			end;
168
169
170	torben	2685	class function TUtils.AdobeReaderExists(): Boolean;
171			var
172			AReg: TRegistry;
173			begin
174			result:= false;
175			AReg := TRegistry.Create;
176			AReg.RootKey := HKEY_LOCAL_MACHINE;
177			if AReg.KeyExists('\SOFTWARE\Adobe\Acrobat Reader') then
178			result:= True;
179			AReg.Free;
180			end;
181
182	torben	2693
183			/// <summary>
184			/// This function reads the file resource of "FileName" and returns
185			/// the version number as formatted text.</summary>
186			/// <example>
187			/// Sto_GetFmtFileVersion() = '4.13.128.0'
188			/// Sto_GetFmtFileVersion('', '%.2d-%.2d-%.2d') = '04-13-128'
189			/// </example>
190			/// <remarks>If "Fmt" is invalid, the function may raise an
191			/// EConvertError exception.</remarks>
192			/// <param name="FileName">Full path to exe or dll. If an empty
193			/// string is passed, the function uses the filename of the
194			/// running exe or dll.</param>
195			/// <param name="Fmt">Format string, you can use at most four integer
196			/// values.</param>
197			/// <returns>Formatted version number of file, '' if no version
198			/// resource found.</returns>
199			class function TUtils.Sto_GetFmtFileVersion(const FileName: String = ''): String;
200			var
201			sFileName: String;
202			iBufferSize: DWORD;
203			iDummy: DWORD;
204			pBuffer: Pointer;
205			pFileInfo: Pointer;
206			iVer: array[1..4] of Integer;
207			begin
208			// set default value
209			Result := '';
210			// get filename of exe/dll if no filename is specified
211			sFileName := Trim(FileName);
212			if (sFileName = '') then
213			sFileName := GetModuleName(HInstance);
214			// get size of version info (0 if no version info exists)
215			iBufferSize := GetFileVersionInfoSize(PChar(sFileName), iDummy);
216			if (iBufferSize > 0) then
217			begin
218			GetMem(pBuffer, iBufferSize);
219			try
220			// get fixed file info (language independent)
221			GetFileVersionInfo(PChar(sFileName), 0, iBufferSize, pBuffer);
222			VerQueryValue(pBuffer, '\', pFileInfo, iDummy);
223			// read version blocks
224			iVer[1] := HiWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionMS);
225			iVer[2] := LoWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionMS);
226			iVer[3] := HiWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionLS);
227			iVer[4] := LoWord(PVSFixedFileInfo(pFileInfo)^.dwFileVersionLS);
228			finally
229			FreeMem(pBuffer);
230			end;
231
232			// format result string
233			Result := Format('%d.%d.%d.%d', [iVer[1], iVer[2], iVer[3], iVer[4]]);
234
235			end;
236			end;
237
238
239	torben	2682	end.