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	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	class function AdobeReaderExists(): Boolean;
24
25	class function Sto_GetFmtFileVersion(const FileName: String = ''): String;
26
27
28
29
30	end;
31
32	implementation
33
34	uses StrUtils,
35	Types, //TRect ,
36	Windows,
37	Messages,
38	SysUtils, //IntToStr etc
39	Registry
40
41	;
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	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
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	end.