vos/source/object.cxx

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  30
  31 #include <string.h>
  32
  33 #include <rtl/alloc.h>
  34 #include <rtl/memory.h>
  35
  36 #include <vos/diagnose.hxx>
  37
  38 #include <vos/object.hxx>
  39
  40 using namespace vos;
  41
  42 /////////////////////////////////////////////////////////////////////////////
  43 // Object super class
  44
  45 VOS_NAMESPACE(OClassInfo, vos) VOS_NAMESPACE(OObject, vos)::__ClassInfo__(VOS_CLASSNAME(OObject, vos), sizeof(VOS_NAMESPACE(OObject, vos)));
  46
  47 OObject::OObject()
  48 {
  49 }
  50
  51 OObject::OObject(const OCreateParam&)
  52 {
  53 }
  54
  55 OObject::~OObject()
  56 {
  57 }
  58
  59 void* OObject::operator new(size_t size)
  60 {
  61    void* p = rtl_allocateMemory(size);
  62
  63    VOS_ASSERT(p != NULL);
  64
  65    return (p);
  66 }
  67
  68 void* OObject::operator new(size_t, void* p)
  69 {
  70    return (p);
  71 }
  72
  73 void OObject::operator delete(void* p)
  74 {
  75    rtl_freeMemory(p);
  76 }
  77
  78 const OClassInfo& OObject::classInfo()
  79 {
  80     return (__ClassInfo__);
  81 }
  82
  83 const OClassInfo& OObject::getClassInfo() const
  84 {
  85     return (VOS_CLASSINFO(VOS_NAMESPACE(OObject, vos)));
  86 }
  87
  88 sal_Bool OObject::isKindOf(const OClassInfo& rClass) const
  89 {
  90     VOS_ASSERT(this != NULL);
  91
  92     const OClassInfo& rClassThis = getClassInfo();
  93
  94     return (rClassThis.isDerivedFrom(rClass));
  95 }
  96
  97 /////////////////////////////////////////////////////////////////////////////
  98 // Basic class information
  99
 100 OClassInfo::OClassInfo(const sal_Char *pClassName, sal_Int32 ObjectSize,
 101                        const OClassInfo* pBaseClass, sal_uInt32 Schema,
 102                        OObject* (SAL_CALL * fnCreateObject)(const OCreateParam&))
 103 {
 104     m_pClassName  = pClassName;
 105     m_nObjectSize = ObjectSize;
 106     m_wSchema     = Schema;
 107
 108     m_pfnCreateObject = fnCreateObject;
 109
 110     m_pBaseClass = pBaseClass;
 111     m_pNextClass = NULL;
 112 }
 113
 114 OObject* OClassInfo::createObject(const OCreateParam& rParam) const
 115 {
 116     if (m_pfnCreateObject == NULL)
 117         return NULL;
 118
 119     OObject* pObject = NULL;
 120     pObject = (*m_pfnCreateObject)(rParam);
 121
 122     return (pObject);
 123 }
 124
 125 sal_Bool OClassInfo::isDerivedFrom(const OClassInfo& rClass) const
 126 {
 127     VOS_ASSERT(this != NULL);
 128
 129     const OClassInfo* pClassThis = this;
 130
 131     while (pClassThis != NULL)
 132     {
 133         if (pClassThis == &rClass)
 134             return (sal_True);
 135
 136         pClassThis = pClassThis->m_pBaseClass;
 137     }
 138
 139     return (sal_False);      // walked to the top, no match
 140 }
 141
 142 const OClassInfo* OClassInfo::getClassInfo(const sal_Char* pClassName)
 143 {
 144     VOS_ASSERT(pClassName != NULL);
 145
 146     const OClassInfo* pClass = &VOS_CLASSINFO(VOS_NAMESPACE(OObject, vos));
 147
 148     while (pClass != NULL)
 149     {
 150         if (strcmp(pClassName, pClass->m_pClassName) == 0)
 151             break;
 152
 153         pClass = pClass->m_pNextClass;
 154     }
 155
 156     return (pClass);
 157 }
 158
 159 VOS_CLASSINIT::VOS_CLASSINIT(register OClassInfo* pNewClass)
 160 {
 161     VOS_ASSERT(pNewClass != NULL);
 162
 163     OClassInfo* pClassRoot = (OClassInfo*)&VOS_CLASSINFO(VOS_NAMESPACE(OObject, vos));
 164
 165     pNewClass->m_pNextClass = pClassRoot->m_pNextClass;
 166
 167     pClassRoot->m_pNextClass = pNewClass;
 168 }