headers/libs/print/libprint/PrintUtils.h

   1 /*
   2
   3 PDF Writer printer driver.
   4
   5 Copyright (c) 2001, 2002 OpenBeOS.
   6 Copyright (c) 2005 - 2008 Haiku.
   7
   8 Authors:
   9         Philippe Houdoin
  10         Simon Gauvin
  11         Michael Pfeiffer
  12
  13 Permission is hereby granted, free of charge, to any person obtaining a copy of
  14 this software and associated documentation files (the "Software"), to deal in
  15 the Software without restriction, including without limitation the rights to
  16 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  17 of the Software, and to permit persons to whom the Software is furnished to do
  18 so, subject to the following conditions:
  19
  20 The above copyright notice and this permission notice shall be included in all
  21 copies or substantial portions of the Software.
  22
  23 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  24 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  25 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  26 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  27 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  28 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  29 THE SOFTWARE.
  30
  31 */
  32
  33 #ifndef _PRINT_UTILS_H_
  34 #define _PRINT_UTILS_H_
  35
  36
  37 #include <List.h>
  38 #include <MessageFilter.h>
  39 #include <String.h>
  40 #include <Rect.h>
  41
  42
  43 class BHandler;
  44 class BMessage;
  45 class BWindow;
  46
  47
  48 #define BEGINS_CHAR(byte) ((byte & 0xc0) != 0x80)
  49
  50
  51 BRect ScaleRect(const BRect& rect, float scale);
  52
  53
  54 // set or replace a value in a BMessage
  55 void SetBool(BMessage* msg, const char* name, bool value);
  56 void SetFloat(BMessage* msg, const char* name, float value);
  57 void SetInt32(BMessage* msg, const char* name, int32 value);
  58 void SetString(BMessage* msg, const char* name, const char* value);
  59 void SetRect(BMessage* msg, const char* name, const BRect& rect);
  60 void SetString(BMessage* msg, const char* name, const BString& value);
  61 void AddFields(BMessage* to, const BMessage* from, const char* excludeList[] = NULL,
  62         const char* includeList[] = NULL, bool overwrite = true);
  63
  64
  65 template <class T>
  66 class TList {
  67 private:
  68         BList fList;
  69         typedef int (*sort_func)(const void*, const void*);
  70
  71 public:
  72         virtual ~TList();
  73         void     MakeEmpty();
  74         int32    CountItems() const;
  75         T*       ItemAt(int32 index) const;
  76         void     AddItem(T* p);
  77         T*       RemoveItem(int i);
  78         T*       Items();
  79         void     SortItems(int (*comp)(const T**, const T**));
  80 };
  81
  82 // TList
  83 template<class T>
  84 TList<T>::~TList() {
  85         MakeEmpty();
  86 }
  87
  88
  89 template<class T>
  90 void TList<T>::MakeEmpty() {
  91         const int32 n = CountItems();
  92         for (int i = 0; i < n; i++) {
  93                 delete ItemAt(i);
  94         }
  95         fList.MakeEmpty();
  96 }
  97
  98
  99 template<class T>
 100 int32 TList<T>::CountItems() const {
 101         return fList.CountItems();
 102 }
 103
 104
 105 template<class T>
 106 T* TList<T>::ItemAt(int32 index) const {
 107         return (T*)fList.ItemAt(index);
 108 }
 109
 110
 111 template<class T>
 112 void TList<T>::AddItem(T* p) {
 113         fList.AddItem(p);
 114 }
 115
 116 template<class T>
 117 T* TList<T>::RemoveItem(int i) {
 118         return (T*)fList.RemoveItem(i);
 119 }
 120
 121
 122 template<class T>
 123 T* TList<T>::Items() {
 124         return (T*)fList.Items();
 125 }
 126
 127
 128 template<class T>
 129 void TList<T>::SortItems(int (*comp)(const T**, const T**)) {
 130         sort_func sort = (sort_func)comp;
 131         fList.SortItems(sort);
 132 }
 133
 134 #endif  // _PRINT_UTILS_H_