FilePathAutoRename.cpp (986B)
1 // FilePathAutoRename.cpp 2 3 #include "StdAfx.h" 4 5 #include "../../Windows/FileFind.h" 6 7 #include "FilePathAutoRename.h" 8 9 using namespace NWindows; 10 11 static bool MakeAutoName(const FString &name, 12 const FString &extension, UInt32 value, FString &path) 13 { 14 path = name; 15 path.Add_UInt32(value); 16 path += extension; 17 return NFile::NFind::DoesFileOrDirExist(path); 18 } 19 20 bool AutoRenamePath(FString &path) 21 { 22 int dotPos = path.ReverseFind_Dot(); 23 int slashPos = path.ReverseFind_PathSepar(); 24 25 FString name = path; 26 FString extension; 27 if (dotPos > slashPos + 1) 28 { 29 name.DeleteFrom(dotPos); 30 extension = path.Ptr(dotPos); 31 } 32 name += '_'; 33 34 FString temp; 35 36 UInt32 left = 1, right = ((UInt32)1 << 30); 37 while (left != right) 38 { 39 UInt32 mid = (left + right) / 2; 40 if (MakeAutoName(name, extension, mid, temp)) 41 left = mid + 1; 42 else 43 right = mid; 44 } 45 return !MakeAutoName(name, extension, right, path); 46 }