rosapps/smartpdf/poppler/poppler/UGooString.h

   1 //========================================================================
   2 //
   3 // UGooString.h
   4 //
   5 // Unicode string
   6 //
   7 // Copyright 2005 Albert Astals Cid <aacid@kde.org>
   8 //
   9 //========================================================================
  10
  11 #ifndef UGooString_H
  12 #define UGooString_H
  13
  14 #include "CharTypes.h"
  15
  16 class GooString;
  17
  18 class UGooString
  19 {
  20 public:
  21
  22   // Create empty unicode string
  23   UGooString(void);
  24
  25   // Create a unicode string from <str>.
  26   UGooString(GooString &str);
  27
  28   // Copy the unicode string
  29   UGooString(const UGooString &str);
  30
  31   // Create a unicode string from <str>.
  32   UGooString(const char *str, int strLen = CALC_STRING_LEN);
  33
  34   UGooString *Set(const char *str, int strLen = CALC_STRING_LEN);
  35   UGooString *Set(const UGooString &str);
  36
  37   // Set the string to empty string, freeing all dynamically allocated memory
  38   // as a side effect
  39   UGooString *clear(void);
  40
  41   ~UGooString();
  42
  43   void resize(int newLength);
  44
  45   int getLength() const { return length; }
  46
  47   // Compare two strings:  -1:<  0:=  +1:>
  48   int cmp(const UGooString *str) const;
  49   int cmp(const UGooString &str) const;
  50   int cmp(const char *str, int strLen = CALC_STRING_LEN) const;
  51
  52   // get the unicode
  53   Unicode *unicode() const { return s; }
  54
  55   // Return a newly allocated copy of the string converted to
  56   // ascii (non-Unicode) format. Caller has to delete [] the result
  57   char *getCStringCopy() const;
  58
  59   // a special value telling that the length of the string is not given
  60   // so it must be calculated from the strings
  61   static const int CALC_STRING_LEN = -1;
  62
  63 private:
  64   // you can tweak this number for a different speed/memory usage tradeoffs.
  65   // In libc malloc() rounding is 16 so it's best to choose a value that
  66   // results in sizeof(UGooString) be a multiple of 16.
  67   // 20 makes sizeof(UGooString) to be 48.
  68   static const int STR_STATIC_SIZE = 20;
  69
  70   int  roundedSize(int len);
  71   void initChar(const char *str, int strLen);
  72
  73   Unicode sStatic[STR_STATIC_SIZE];
  74   int length;
  75   Unicode *s;
  76 };
  77
  78 #endif