Initial community commit

Src/nde/win/ColumnField.cpp

@@ -0,0 +1,184 @@
+/* ---------------------------------------------------------------------------
+Nullsoft Database Engine
+--------------------
+codename: Near Death Experience
+--------------------------------------------------------------------------- */
+
+/* ---------------------------------------------------------------------------
+
+ColumnField Class
+Windows implementation
+
+Field data layout:
+[1 byte] Field Type
+[1 byte] Unused (maybe convert to 'searchable')
+[1 byte] Name Length
+[Name Length bytes] Name (UTF-8)
+--------------------------------------------------------------------------- */
+
+#include "../nde.h"
+
+//---------------------------------------------------------------------------
+ColumnField::ColumnField(unsigned char FieldID, const wchar_t *FieldName, unsigned char FieldType, Table *parentTable)
+{
+	InitField();
+	Type = FIELD_COLUMN;
+	MyType = FieldType;
+	Name = ndestring_wcsdup(FieldName);
+	ID = FieldID;
+}
+
+//---------------------------------------------------------------------------
+void ColumnField::InitField(void)
+{
+	searchable = false;
+	MyType = FIELD_UNKNOWN;
+	Type = FIELD_COLUMN;
+	Name = NULL;
+	ID = 0;
+}
+
+//---------------------------------------------------------------------------
+ColumnField::ColumnField()
+{
+	InitField();
+}
+
+//---------------------------------------------------------------------------
+ColumnField::~ColumnField()
+{
+	ndestring_release(Name);
+}
+
+void ColumnField::SetSearchable(bool val)
+{
+	searchable=val;
+}
+
+bool ColumnField::IsSearchableField() const
+{
+	return searchable;
+}
+
+//---------------------------------------------------------------------------
+void ColumnField::ReadTypedData(const uint8_t *data, size_t len)
+{
+	unsigned char c;
+	int pos=0;
+
+	// [1 byte] Field Type
+	CHECK_CHAR(len);
+	MyType = GET_CHAR(); 
+	pos++;
+
+	// [1 byte] unused 
+	CHECK_CHAR(len);
+//cut:	indexUnique = (BOOL)GET_CHAR();
+	pos++;
+
+	// [1 byte] string length
+	CHECK_CHAR(len);
+	c = GET_CHAR(); 
+	pos++;
+
+	if (c)
+	{
+		CHECK_BIN(len, c);
+
+		int string_length = MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)(data+pos), c, 0, 0);
+		Name = ndestring_malloc((string_length+1)*sizeof(wchar_t));
+		MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)(data+pos), c, Name, string_length);
+		Name[string_length]=0;
+	}
+}
+
+//---------------------------------------------------------------------------
+void ColumnField::WriteTypedData(uint8_t *data, size_t len)
+{
+	int pos = 0;
+
+	// [1 byte] Field Type
+	CHECK_CHAR(len);
+	PUT_CHAR(MyType); 
+	pos++;
+
+	// [1 byte] unused 
+	CHECK_CHAR(len);
+	PUT_CHAR(0/*(char)indexUnique*/); 
+	pos++;
+
+	CHECK_CHAR(len);
+	if (Name) 
+	{
+		size_t string_length = WideCharToMultiByte(CP_UTF8, 0, Name, -1, 0, 0, 0, 0);
+		if (string_length)
+		{
+			PUT_CHAR((uint8_t)string_length-1);
+			pos++;
+
+			CHECK_BIN(len, string_length-1);		
+			WideCharToMultiByte(CP_UTF8, 0, Name, -1, (LPSTR)(data+pos), (int)string_length-1, 0, 0);
+		}
+		else
+		{
+			PUT_CHAR(0);
+		}
+	}
+	else
+	{
+		PUT_CHAR(0);
+	}
+}
+
+//---------------------------------------------------------------------------
+unsigned char ColumnField::GetDataType(void)
+{
+	return MyType;
+}
+
+//---------------------------------------------------------------------------
+void ColumnField::SetDataType(unsigned char type)
+{
+	if ((MyType == FIELD_INTEGER || MyType == FIELD_BOOLEAN || MyType == FIELD_DATETIME || MyType == FIELD_LENGTH || MyType == FIELD_INT64) && 
+		(type == FIELD_INTEGER || type == FIELD_BOOLEAN || type == FIELD_DATETIME || type == FIELD_LENGTH || type == FIELD_INT64)) {
+			MyType = type;
+	}
+	// going from string to filename or filename to string is OK
+	if ((MyType == FIELD_FILENAME && type == FIELD_STRING)
+		|| (MyType == FIELD_STRING && type == FIELD_FILENAME))
+	{
+		MyType = type;
+	}
+}
+
+//---------------------------------------------------------------------------
+wchar_t *ColumnField::GetFieldName(void)
+{
+	return Name;
+}
+
+//---------------------------------------------------------------------------
+void ColumnField::SetFieldName(wchar_t *name)
+{
+	if (Name) ndestring_release(Name);
+	Name = ndestring_wcsdup(name);
+}
+
+//---------------------------------------------------------------------------
+size_t ColumnField::GetDataSize(void)
+{
+	size_t s=3;
+	if (Name)
+	{
+		int string_length=WideCharToMultiByte(CP_UTF8, 0, Name, -1, 0, 0, 0, 0);
+		if (string_length)
+			s+=string_length-1;
+	}
+	return s;
+}
+
+//---------------------------------------------------------------------------
+int ColumnField::Compare(Field * /*Entry*/)
+{
+	return 0;
+}