1 | UNIT Unit2_functions; |
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2 | INTERFACE |
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3 | USES Classes, Dialogs, SysUtils, StrUtils, Math, |
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4 | Unit3_data, ABSDecUtil, ABSMain, DB; |
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5 | |
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6 | TYPE |
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7 | TExportSet=SET OF (DO_dat,DO_raw,DO_convert,DO_toone); |
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8 | |
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9 | FUNCTION GetFilesList(ext:String; pattern:String; NoEmptyFiles:Boolean):TStringList; |
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10 | FUNCTION GetExtensionsList:TStringList; |
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11 | |
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12 | FUNCTION Decode_Int(buffer:Tdata):LongWord; |
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13 | FUNCTION Encode_Int(input:LongWord):Tdata; |
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14 | FUNCTION Decode_Float(buffer:Tdata):Single; |
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15 | FUNCTION Encode_Float(input:Single):Tdata; |
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16 | FUNCTION DataToBin(data:Tdata):String; |
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17 | FUNCTION BinToInt(bin:String):Byte; |
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18 | |
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19 | FUNCTION GetFileInfo(fileid:LongWord):TFileInfo; |
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20 | FUNCTION LoadDatInfos(filename:String):Boolean; |
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21 | PROCEDURE OpenDatabase(FileName:String); |
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22 | PROCEDURE CloseDatabase; |
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23 | |
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24 | FUNCTION LoadDatFile(fileid:LongWord):Tdata; |
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25 | PROCEDURE UpdateDatFile(fileid:LongWord; data:Tdata); |
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26 | FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean; |
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27 | FUNCTION UpdateDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean; |
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28 | |
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29 | FUNCTION LoadRawFile(fileid,dat_offset,raw_addr,size:LongWord; target:Pointer):Boolean; |
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30 | FUNCTION LoadRawFileByIDOffset(fileid,dat_offset:LongWord; target:Pointer):Boolean; |
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31 | FUNCTION UpdateRawFile(rawinfo:TRawInfo; target:Pointer):Boolean; |
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32 | |
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33 | FUNCTION ExportFile(fileid:LongWord; filename:String; settings:TExportSet; path:String):Integer; |
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34 | |
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35 | FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String; |
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36 | FUNCTION FormatFileSize(size:LongWord):String; |
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37 | FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String; |
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38 | FUNCTION GetWinFileName(name:String):String; |
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39 | FUNCTION GetExtractPath:String; |
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40 | |
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41 | |
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42 | IMPLEMENTATION |
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43 | USES Unit4_Exporters, Unit9_data_structures; |
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44 | |
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45 | VAR |
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46 | Database:TABSDatabase; |
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47 | Query:TABSQuery; |
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48 | |
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49 | TYPE |
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50 | TValueSwitcher=Record |
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51 | CASE IsFloat: Boolean OF |
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52 | True: (ValueFloat:Single); |
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53 | False: (ValueInt:LongWord); |
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54 | END; |
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55 | |
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56 | FUNCTION Decode_Int(buffer:Tdata):LongWord; |
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57 | BEGIN |
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58 | Result:=buffer[0]+buffer[1]*256+buffer[2]*256*256+buffer[3]*256*256*256; |
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59 | END; |
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60 | FUNCTION Encode_Int(input:LongWord):Tdata; |
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61 | BEGIN |
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62 | SetLength(Result,4); |
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63 | Result[0]:=input MOD 256; |
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64 | input:=input DIV 256; |
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65 | Result[1]:=input MOD 256; |
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66 | input:=input DIV 256; |
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67 | Result[2]:=input MOD 256; |
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68 | input:=input DIV 256; |
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69 | Result[3]:=input MOD 256; |
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70 | END; |
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71 | FUNCTION Decode_Float(buffer:Tdata):Single; |
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72 | VAR _valueswitcher:TValueSwitcher; |
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73 | BEGIN |
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74 | _valueswitcher.ValueInt:=Decode_Int(buffer); |
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75 | Result:=_valueswitcher.ValueFloat; |
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76 | IF IsNAN(Result) THEN Result:=0.0; |
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77 | END; |
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78 | FUNCTION Encode_Float(input:Single):Tdata; |
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79 | VAR _valueswitcher:TValueSwitcher; |
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80 | BEGIN |
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81 | _valueswitcher.ValueFloat:=input; |
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82 | Result:=Encode_Int(_valueswitcher.ValueInt); |
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83 | END; |
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84 | |
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85 | FUNCTION DataToBin(data:Tdata):String; |
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86 | VAR |
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87 | i,j:Byte; |
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88 | singlebyte:Byte; |
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89 | bytepart:String; |
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90 | BEGIN |
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91 | SetLength(bytepart,8); |
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92 | Result:=''; |
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93 | FOR i:=0 TO High(data) DO BEGIN |
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94 | singlebyte:=data[i]; |
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95 | FOR j:=7 DOWNTO 0 DO BEGIN |
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96 | bytepart[j+1]:=Char((singlebyte AND $01)+48); |
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97 | singlebyte:=singlebyte SHR 1; |
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98 | END; |
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99 | Result:=Result+bytepart+' '; |
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100 | END; |
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101 | END; |
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102 | FUNCTION BinToInt(bin:String):Byte; |
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103 | VAR |
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104 | Add: Integer; |
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105 | i: Byte; |
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106 | BEGIN |
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107 | Result:=0; |
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108 | IF Length(bin)<>8 THEN Exit; |
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109 | Add:=1; |
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110 | FOR i:=8 DOWNTO 1 DO BEGIN |
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111 | IF NOT (bin[i] IN ['0','1']) THEN Exit; |
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112 | IF bin[i] = '1' THEN Inc(Result,Add); |
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113 | Add:=Add SHL 1; |
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114 | END; |
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115 | END; |
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116 | |
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117 | FUNCTION GetFileInfo(fileid:LongWord):TFileInfo; |
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118 | BEGIN |
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119 | IF opened_state=opened_dat THEN BEGIN |
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120 | Result:=dat_files[fileid]; |
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121 | END ELSE BEGIN |
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122 | Query.SQL.Text:='SELECT * FROM datfiles WHERE id='+IntToStr(fileid)+' ORDER BY id ASC;'; |
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123 | Query.Open; |
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124 | IF Query.RecordCount=1 THEN BEGIN |
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125 | Query.First; |
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126 | Result.ID:=Query.FieldByName('id').AsInteger; |
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127 | Result.Name:=Query.FieldByName('name').AsString; |
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128 | Result.Extension:=Query.FieldByName('extension').AsString; |
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129 | Result.FileName:=FormatNumber(Result.ID,5,'0')+'-'+Result.Name+'.'+Result.Extension; |
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130 | Result.Size:=Query.FieldByName('size').AsInteger; |
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131 | Result.FileType:=Query.FieldByName('contenttype').AsInteger; |
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132 | Result.DatAddr:=0; |
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133 | Result.opened:=False; |
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134 | END; |
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135 | Query.Close; |
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136 | END; |
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137 | END; |
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138 | |
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139 | |
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140 | FUNCTION GetFilesList(ext:String; pattern:String; NoEmptyFiles:Boolean):TStringList; |
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141 | VAR |
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142 | i:LongWord; |
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143 | where:String; |
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144 | BEGIN |
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145 | SetLength(Result,0); |
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146 | IF opened_state=opened_dat THEN BEGIN |
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147 | FOR i:=0 TO dat_header.Files-1 DO BEGIN |
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148 | IF ( (Length(ext)=0) OR (dat_files[i].Extension=ext) ) AND |
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149 | ( (Length(pattern)=0) OR (Pos(UpperCase(pattern),UpperCase(dat_files[i].Name))>0) ) THEN BEGIN |
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150 | IF NoEmptyFiles THEN BEGIN |
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151 | IF (dat_files[i].FileType AND $02)=0 THEN BEGIN |
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152 | SetLength(Result,Length(Result)+1); |
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153 | Result[High(Result)]:=dat_files[i].FileName; |
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154 | END; |
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155 | END ELSE BEGIN |
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156 | SetLength(Result,Length(Result)+1); |
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157 | Result[High(Result)]:=dat_files[i].FileName; |
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158 | END; |
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159 | END; |
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160 | END; |
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161 | END ELSE BEGIN |
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162 | where:=''; |
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163 | IF Length(ext)>0 THEN BEGIN |
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164 | IF Length(where)>0 THEN where:=where+' AND '; |
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165 | where:=where+'(extension="'+ext+'")'; |
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166 | END; |
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167 | IF Length(pattern)>0 THEN BEGIN |
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168 | IF Length(where)>0 THEN where:=where+' AND '; |
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169 | where:=where+'(name LIKE "%'+pattern+'%")'; |
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170 | END; |
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171 | IF NoEmptyFiles THEN BEGIN |
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172 | IF Length(where)>0 THEN where:=where+' AND '; |
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173 | where:=where+'(contenttype<>2)'; |
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174 | END; |
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175 | IF Length(where)>0 THEN where:=' WHERE '+where; |
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176 | Query.SQL.Text:='SELECT id,name,extension FROM datfiles'+where+' ORDER BY id ASC;'; |
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177 | Query.Open; |
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178 | IF Query.RecordCount>0 THEN BEGIN |
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179 | Query.First; |
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180 | SetLength(Result,Query.RecordCount); |
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181 | i:=0; |
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182 | REPEAT |
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183 | Result[i]:=FormatNumber(Query.FieldByName('id').AsInteger,5,'0')+'-'+Query.FieldByName('name').AsString+'.'+Query.FieldByName('extension').AsString; |
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184 | Inc(i); |
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185 | Query.Next; |
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186 | UNTIL Query.EOF; |
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187 | END; |
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188 | Query.Close; |
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189 | END; |
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190 | END; |
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191 | |
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192 | FUNCTION GetExtensionsList:TStringList; |
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193 | VAR |
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194 | i:LongWord; |
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195 | BEGIN |
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196 | SetLength(Result,0); |
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197 | IF opened_state=opened_dat THEN BEGIN |
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198 | FOR i:=0 TO dat_header.Extensions-1 DO BEGIN |
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199 | SetLength(Result,Length(Result)+1); |
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200 | WITH dat_extensionsmap[i] DO BEGIN |
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201 | Result[High(Result)]:=Extension[3]+Extension[2]+Extension[1]+Extension[0]+' ('+IntToStr(ExtCount)+')'; |
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202 | END; |
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203 | END; |
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204 | END ELSE BEGIN |
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205 | Query.SQL.Text:='SELECT extension,count(extension) AS x FROM datfiles GROUP BY extension ORDER BY extension ASC;'; |
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206 | Query.Open; |
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207 | IF Query.RecordCount>0 THEN BEGIN |
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208 | SetLength(Result,Query.RecordCount); |
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209 | i:=0; |
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210 | REPEAT |
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211 | Result[i]:=Query.FieldByName('extension').AsString+' ('+IntToStr(Query.FieldByName('x').AsInteger)+')'; |
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212 | Inc(i); |
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213 | Query.Next; |
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214 | UNTIL Query.EOF; |
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215 | END; |
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216 | Query.Close; |
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217 | END; |
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218 | END; |
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219 | |
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220 | FUNCTION LoadDatInfos(filename:String):Boolean; |
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221 | VAR i:LongWord; |
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222 | dat_file:TFileStream; |
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223 | BEGIN |
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224 | Result:=True; |
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225 | opened_state:=opened_dat; |
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226 | dat_filename:=filename; |
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227 | raw_filename:=MidStr(filename,1,Length(filename)-3)+'raw'; |
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228 | dat_file:=TFileStream.Create(filename, fmOpenRead); |
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229 | dat_file.Read(dat_header,SizeOf(dat_header)); |
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230 | FOR i:=0 TO High(dat_header.Ident) DO |
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231 | IF dat_header.Ident[i]<>header_ident1[i] THEN BEGIN |
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232 | Result:=False; |
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233 | Exit; |
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234 | END; |
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235 | SetLength(dat_filesmap,dat_header.Files); |
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236 | SetLength(dat_files,dat_header.Files); |
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237 | FOR i:=0 TO dat_header.Files-1 DO dat_file.Read(dat_filesmap[i],SizeOf(dat_filesmap[i])); |
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238 | FOR i:=0 TO dat_header.Files-1 DO BEGIN |
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239 | dat_files[i].Extension:=dat_filesmap[i].Extension; |
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240 | dat_files[i].Extension:=ReverseString(dat_files[i].Extension); |
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241 | dat_files[i].Size:=dat_filesmap[i].FileSize; |
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242 | dat_files[i].FileType:=dat_filesmap[i].FileType; |
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243 | dat_files[i].DatAddr:=dat_filesmap[i].DataAddr-8+dat_header.DataAddr; |
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244 | IF (dat_filesmap[i].FileType AND $01)=0 THEN BEGIN |
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245 | dat_file.Seek(dat_filesmap[i].NameAddr+dat_header.NamesAddr,soFromBeginning); |
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246 | SetLength(dat_files[i].Name,100); |
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247 | dat_file.Read(dat_files[i].Name[1],100); |
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248 | dat_files[i].Name:=MidStr(dat_files[i].Name,1+4,Pos(#0,dat_files[i].Name)-1-4); |
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249 | END ELSE BEGIN |
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250 | dat_files[i].Name:=''; |
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251 | END; |
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252 | dat_files[i].FileName:=FormatNumber(i,5,'0')+'-'+dat_files[i].Name+'.'+dat_files[i].Extension; |
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253 | END; |
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254 | dat_file.Seek($40+dat_header.Files*$14,soFromBeginning); |
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255 | SetLength(dat_namedfilesmap,dat_header.NamedFiles); |
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256 | FOR i:=0 TO dat_header.NamedFiles-1 DO dat_file.Read(dat_namedfilesmap[i],SizeOf(dat_namedfilesmap[i])); |
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257 | |
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258 | dat_file.Seek($40+dat_header.Files*$14+dat_header.NamedFiles*$8,soFromBeginning); |
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259 | SetLength(dat_extensionsmap,dat_header.Extensions); |
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260 | FOR i:=0 TO dat_header.Extensions-1 DO dat_file.Read(dat_extensionsmap[i],SizeOf(dat_extensionsmap[i])); |
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261 | |
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262 | dat_file.Free; |
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263 | END; |
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264 | |
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265 | |
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266 | FUNCTION LoadDatFile(fileid:LongWord):Tdata; |
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267 | VAR |
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268 | dat_file:TFileStream; |
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269 | mem:TStream; |
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270 | BEGIN |
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271 | IF opened_state=opened_dat THEN BEGIN |
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272 | dat_file:=TFileStream.Create(dat_filename, fmOpenRead); |
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273 | dat_file.Seek(dat_files[fileid].DatAddr,soFromBeginning); |
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274 | SetLength(Result,dat_files[fileid].Size); |
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275 | dat_file.Read(Result[0],dat_files[fileid].Size); |
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276 | dat_file.Free; |
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277 | END ELSE BEGIN |
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278 | Query.SQL.Text:='SELECT data FROM datfiles WHERE id='+IntToStr(fileid)+';'; |
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279 | Query.Open; |
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280 | IF Query.RecordCount>0 THEN BEGIN |
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281 | mem:=Query.CreateBlobStream(Query.FieldByName('data'),bmRead); |
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282 | SetLength(Result,mem.Size); |
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283 | mem.Seek(0,soFromBeginning); |
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284 | mem.Read(Result[0],mem.Size); |
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285 | mem.Free; |
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286 | END; |
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287 | Query.Close; |
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288 | END; |
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289 | END; |
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290 | PROCEDURE UpdateDatFile(fileid:LongWord; data:Tdata); |
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291 | VAR |
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292 | dat_file:TFileStream; |
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293 | BEGIN |
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294 | IF opened_state=opened_dat THEN BEGIN |
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295 | dat_file:=TFileStream.Create(dat_filename, fmOpenReadWrite); |
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296 | dat_file.Seek(dat_files[fileid].DatAddr,soFromBeginning); |
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297 | dat_file.Write(data[0],Length(data)); |
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298 | dat_file.Free; |
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299 | END ELSE BEGIN |
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300 | END; |
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301 | END; |
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302 | |
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303 | FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean; |
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304 | VAR |
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305 | dat_file:TFileStream; |
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306 | mem:TStream; |
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307 | BEGIN |
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308 | Result:=False; |
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309 | IF opened_state=opened_dat THEN BEGIN |
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310 | dat_file:=TFileStream.Create(dat_filename, fmOpenRead); |
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311 | Result:=True; |
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312 | dat_file.Seek(dat_files[fileid].DatAddr+offset,soFromBeginning); |
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313 | dat_file.Read(target^,size); |
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314 | dat_file.Free; |
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315 | END ELSE BEGIN |
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316 | Query.SQL.Text:='SELECT data FROM datfiles WHERE id='+IntToStr(fileid)+';'; |
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317 | Query.Open; |
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318 | IF Query.RecordCount>0 THEN BEGIN |
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319 | mem:=Query.CreateBlobStream(Query.FieldByName('data'),bmRead); |
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320 | mem.Seek(offset,soFromBeginning); |
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321 | mem.Read(target^,size); |
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322 | mem.Free; |
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323 | END; |
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324 | Query.Close; |
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325 | END; |
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326 | END; |
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327 | FUNCTION UpdateDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean; |
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328 | VAR |
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329 | dat_file:TFileStream; |
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330 | BEGIN |
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331 | Result:=False; |
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332 | IF opened_state=opened_dat THEN BEGIN |
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333 | dat_file:=TFileStream.Create(dat_filename, fmOpenReadWrite); |
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334 | Result:=True; |
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335 | dat_file.Seek(dat_files[fileid].DatAddr+offset,soFromBeginning); |
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336 | dat_file.Write(target^,size); |
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337 | dat_file.Free; |
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338 | END ELSE BEGIN |
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339 | END; |
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340 | END; |
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341 | |
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342 | FUNCTION LoadRawFile(fileid,dat_offset,raw_addr,size:LongWord; target:Pointer):Boolean; |
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343 | VAR |
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344 | filestream:TFileStream; |
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345 | mem:TStream; |
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346 | BEGIN |
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347 | Result:=False; |
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348 | IF opened_state=opened_dat THEN BEGIN |
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349 | Result:=True; |
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350 | filestream:=TFileStream.Create(AnsiReplaceStr(dat_filename,'.dat','.raw'),fmOpenRead); |
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351 | filestream.Seek(raw_addr,soFromBeginning); |
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352 | filestream.Read(target^,size); |
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353 | filestream.Free; |
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354 | END ELSE BEGIN |
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355 | Query.SQL.Text:='SELECT data FROM rawmap WHERE (src_id='+IntToStr(fileid)+') AND (src_link_offset='+IntToStr(dat_offset)+');'; |
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356 | Query.Open; |
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357 | IF Query.RecordCount>0 THEN BEGIN |
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358 | Result:=True; |
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359 | mem:=Query.CreateBlobStream(Query.FieldByName('data'),bmRead); |
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360 | mem.Seek(0,soFromBeginning); |
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361 | mem.Read(target^,size); |
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362 | mem.Free; |
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363 | END; |
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364 | Query.Close; |
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365 | END; |
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366 | END; |
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367 | FUNCTION LoadRawFileByIDOffset(fileid,dat_offset:LongWord; target:Pointer):Boolean; |
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368 | VAR |
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369 | i:Byte; |
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370 | raw_info:TRawInfo; |
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371 | mem:TStream; |
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372 | BEGIN |
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373 | Result:=False; |
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374 | IF opened_state=opened_dat THEN BEGIN |
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375 | Result:=True; |
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376 | raw_info:=GetRawInfo(fileid,dat_offset); |
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377 | LoadRawFile(fileid,dat_offset,raw_info.raw_addr,raw_info.raw_size,target); |
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378 | END ELSE BEGIN |
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379 | Query.SQL.Text:='SELECT data FROM rawmap WHERE (src_id='+IntToStr(fileid)+') AND (src_link_offset='+IntToStr(dat_offset)+');'; |
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380 | Query.Open; |
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381 | IF Query.RecordCount>0 THEN BEGIN |
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382 | Result:=True; |
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383 | mem:=Query.CreateBlobStream(Query.FieldByName('data'),bmRead); |
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384 | mem.Seek(0,soFromBeginning); |
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385 | mem.Read(target^,mem.size); |
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386 | mem.Free; |
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387 | END; |
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388 | Query.Close; |
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389 | END; |
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390 | END; |
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391 | FUNCTION UpdateRawFile(rawinfo:TRawInfo; target:Pointer):Boolean; |
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392 | VAR |
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393 | filestream:TFileStream; |
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394 | BEGIN |
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395 | Result:=False; |
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396 | IF opened_state=opened_dat THEN BEGIN |
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397 | Result:=True; |
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398 | filestream:=TFileStream.Create(AnsiReplaceStr(dat_filename,'.dat','.raw'),fmOpenReadWrite); |
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399 | filestream.Seek(rawinfo.raw_addr,soFromBeginning); |
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400 | filestream.Write(target^,rawinfo.raw_size); |
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401 | filestream.Free; |
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402 | END ELSE BEGIN |
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403 | END; |
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404 | END; |
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405 | |
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406 | |
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407 | FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String; |
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408 | BEGIN |
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409 | Result:=AnsiReplaceStr(Format('%'+IntToStr(width)+'u',[value]),' ',leadingzeros); |
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410 | END; |
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411 | |
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412 | FUNCTION FormatFileSize(size:LongWord):String; |
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413 | BEGIN |
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414 | IF size>=1000*1024*1024 THEN BEGIN |
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415 | Result:=FloatToStrF(size/1024/1024/1024,ffFixed,5,1)+' GB'; |
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416 | END ELSE BEGIN |
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417 | IF size>=1000*1024 THEN BEGIN |
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418 | Result:=FloatToStrF(size/1024/1024,ffFixed,5,1)+' MB'; |
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419 | END ELSE BEGIN |
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420 | IF size>=1000 THEN BEGIN |
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421 | Result:=FloatToStrF(size/1024,ffFixed,5,1)+' KB'; |
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422 | END ELSE BEGIN |
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423 | Result:=IntToStr(size)+' B'; |
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424 | END; |
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425 | END; |
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426 | END; |
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427 | END; |
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428 | |
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429 | FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String; |
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430 | VAR |
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431 | string_build,ascii_version:String; |
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432 | i:LongWord; |
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433 | BEGIN |
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434 | string_build:=''; |
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435 | ascii_version:=''; |
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436 | FOR i:=0 TO High(data) DO BEGIN |
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437 | IF NOT HexOnly THEN |
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438 | IF (i MOD 16)=0 THEN |
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439 | string_build:=string_build+'0x'+IntToHex(i,6)+' '; |
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440 | string_build:=string_build+IntToHex(data[i],2); |
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441 | IF NOT HexOnly THEN BEGIN |
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442 | IF data[i]>=32 THEN ascii_version:=ascii_version+Chr(data[i]) |
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443 | ELSE ascii_version:=ascii_version+'.'; |
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444 | IF ((i+1) MOD 2)=0 THEN string_build:=string_build+#32; |
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445 | IF ((i+1) MOD 16)=0 THEN BEGIN |
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446 | string_build:=string_build+#32+ascii_version+CrLf; |
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447 | ascii_version:=''; |
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448 | END; |
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449 | END; |
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450 | END; |
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451 | Result:=string_build; |
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452 | END; |
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453 | |
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454 | |
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455 | FUNCTION ExportFile(fileid:LongWord; filename:String; settings:TExportSet; path:String):Integer; |
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456 | VAR |
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457 | i:Byte; |
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458 | extension:String; |
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459 | BEGIN |
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460 | Result:=export_noerror; |
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461 | extension:=RightStr(filename,4); |
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462 | IF DO_toone IN settings THEN BEGIN |
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463 | ExportDatFile(fileid,path+'\'+GetWinFileName(filename)); |
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464 | END ELSE BEGIN |
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465 | IF DO_dat IN settings THEN ExportDatFile(fileid,path+'\'+GetWinFileName(filename)); |
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466 | IF DO_raw IN settings THEN BEGIN |
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467 | FOR i:=1 TO Length(ExportHandlers)+1 DO BEGIN |
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468 | IF i<=Length(ExportHandlers) THEN BEGIN |
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469 | IF ExportHandlers[i].Ext=extension THEN BEGIN |
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470 | IF ExportHandlers[i].needed THEN BEGIN |
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471 | CASE ExportHandlers[i].Handler(fileid,path+'\'+GetWinFileName(filename),(DO_convert IN settings)) OF |
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472 | 0: Result:=0; |
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473 | ELSE |
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474 | Result:=export_handlererror; |
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475 | END; |
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476 | END; |
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477 | Break; |
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478 | END; |
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479 | END ELSE BEGIN |
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480 | Result:=export_nohandler; |
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481 | END; |
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482 | END; |
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483 | END; |
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484 | END; |
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485 | END; |
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486 | |
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487 | |
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488 | FUNCTION GetWinFileName(name:String):String; |
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489 | BEGIN |
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490 | Result:=name; |
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491 | Result:=AnsiReplaceStr(Result,'\','__'); |
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492 | Result:=AnsiReplaceStr(Result,'/','__'); |
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493 | Result:=AnsiReplaceStr(Result,'>','__'); |
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494 | Result:=AnsiReplaceStr(Result,'<','__'); |
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495 | END; |
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496 | |
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497 | FUNCTION GetExtractPath:String; |
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498 | BEGIN |
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499 | Result:=ExtractFilePath(dat_filename)+'\extracted_'+ExtractFileName(dat_filename); |
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500 | END; |
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501 | |
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502 | |
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503 | PROCEDURE OpenDatabase(FileName:String); |
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504 | VAR |
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505 | i:Byte; |
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506 | temps:String; |
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507 | BEGIN |
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508 | IF NOT FileExists(FileName) THEN BEGIN |
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509 | ShowMessage('File doesn''t exist!!!'); |
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510 | Exit; |
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511 | END; |
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512 | Database:=TABSDatabase.Create(NIL); |
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513 | Database.DatabaseName:='OLDBcon'; |
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514 | Database.DatabaseFileName:=FileName; |
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515 | Database.Open; |
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516 | Query:=TABSQuery.Create(Database); |
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517 | Query.DatabaseName:='OLDBcon'; |
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518 | Query.SQL.Text:='SELECT [name],[value] FROM globals ORDER BY [name] ASC'; |
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519 | Query.Open; |
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520 | Query.First; |
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521 | REPEAT |
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522 | IF Query.FieldByName('name').AsString='dbversion' THEN BEGIN |
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523 | IF Query.FieldByName('value').AsString<>DBversion THEN BEGIN |
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524 | ShowMessage('Database-file '+CrLf+'"'+FileName+'"'+CrLf+'has wrong version. (Required: '+DBversion+'; found: '+Query.FieldByName('value').AsString+')'); |
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525 | Query.Close; |
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526 | CloseDatabase; |
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527 | Exit; |
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528 | END; |
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529 | END; |
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530 | IF Query.FieldByName('name').AsString='lvl' THEN BEGIN |
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531 | database_level:=StrToInt(Query.FieldByName('value').AsString); |
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532 | END; |
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533 | IF Query.FieldByName('name').AsString='ident' THEN BEGIN |
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534 | temps:=Query.FieldByName('value').AsString; |
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535 | FOR i:=0 TO High(database_ident) DO BEGIN |
---|
536 | CASE temps[(i*2)+1+0] OF |
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537 | '0'..'9': database_ident[i]:=Ord(temps[(i*2)+1+0])-48; |
---|
538 | 'A'..'F': database_ident[i]:=Ord(temps[(i*2)+1+0])-55; |
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539 | END; |
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540 | database_ident[i]:=database_ident[i]*16; |
---|
541 | CASE temps[(i*2)+1+1] OF |
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542 | '0'..'9': database_ident[i]:=database_ident[i]+Ord(temps[(i*2)+1+0])-48; |
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543 | 'A'..'F': database_ident[i]:=database_ident[i]+Ord(temps[(i*2)+1+0])-55; |
---|
544 | END; |
---|
545 | END; |
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546 | END; |
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547 | Query.Next; |
---|
548 | UNTIL Query.Eof; |
---|
549 | Query.Close; |
---|
550 | opened_state:=opened_db; |
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551 | END; |
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552 | PROCEDURE CloseDatabase; |
---|
553 | BEGIN |
---|
554 | Database.Close; |
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555 | Database.Free; |
---|
556 | opened_state:=opened_nothing; |
---|
557 | END; |
---|
558 | |
---|
559 | |
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560 | |
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561 | END. |
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