graphicstools/bitmapfonttools/src/STRNG.CPP
changeset 0 5d03bc08d59c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicstools/bitmapfonttools/src/STRNG.CPP	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,151 @@
+/*
+* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+* Header STRNG.CPP
+*
+*/
+
+
+#include "STRNG.H"
+
+extern bool OutputUnicode;
+
+ostream& operator << (ostream& out, const String& aString)
+	{
+	for (int i = 0; i < aString.iLength; i++)
+		out << aString.iText[i];
+	out << '\n';
+	return out;
+	}
+
+EXPORT_C void String::Externalize(ostream& out)
+	{
+	if (OutputUnicode)
+		{
+		// Convert the string to Unicode, allowing #NNNN (each N is a hex digit)
+		// to represent an arbitrary Unicode character. Other values are just
+		// extended, so don't use codepage 1252 values in the range 128..159.
+		unsigned short* buffer = new unsigned short[iLength];
+		int i = 0;
+		int j = 0;
+		while (i < iLength)
+			{
+			if (iText[i] == '#')
+				{
+				i++;
+				char hex[5];
+				hex[0] = iText[i++];
+				hex[1] = iText[i++];
+				hex[2] = iText[i++];
+				hex[3] = iText[i++];
+				hex[4] = 0;
+				buffer[j++] = (unsigned short)strtoul(hex, NULL, 16);
+				}
+			else
+				{
+				buffer[j] = iText[i];
+				buffer[j] &= 0xFF;
+				i++;
+				j++;
+				}
+			}
+		int unicode_characters = j;
+		int32 length = (unicode_characters << 1);	// 16-bit data
+		if (length < 0x80)
+			{
+			unsigned char len = (unsigned char)(length << 1);
+			out.write((char*)&len, sizeof(len));
+			}
+		else if (length < 0x4000)
+			{
+			uint16 len = (uint16)((length << 2) + 1);
+			out.write((char*)&len, sizeof(len));
+			}
+		else
+			{
+			// assert len<0x20000000 ?
+			uint32 len = (uint32)((length << 3) + 3);
+			out.write((char*)&len, sizeof(len));
+			}
+		// Output Unicode characters using the Standard Compression Scheme for Unicode.
+		// To save the bother of doing this properly, use a degenerate form whereby each
+		// Unicode character is output as itself. 0x0F selects Unicode mode and 0xF0 quotes
+		// characters that would conflict with other tags.
+		out << (unsigned char)0x0F;
+
+		for (i = 0; i < unicode_characters; i++)
+			{
+			unsigned char hi = (unsigned char)(buffer[i] >> 8);
+			unsigned char lo = (unsigned char)buffer[i];
+			if ((hi >= 0xe0) && (hi <= 0xf2))
+				out << 0xf0;
+			out << hi;
+			out << lo;
+			}
+
+		delete [] buffer;
+		}
+	else
+		{
+		int32 length = (iLength << 1) + 1;	// 8-bit data
+		if (length < 0x80)
+			{
+			unsigned char len = (unsigned char)(length << 1);
+			out.write((char*)&len, sizeof(len));
+			}
+		else if (length < 0x4000)
+			{
+			uint16 len = (uint16)((length << 2) + 1);
+			out.write((char*)&len, sizeof(len));
+			}
+		else
+			{
+			// assert len<0x20000000 ?
+			uint32 len = (uint32)((length << 3) + 3);
+			out.write((char*)&len, sizeof(len));
+			}
+		out.write(iText, iLength);
+		}
+	}
+
+EXPORT_C int String::CreateText(const int aLength)
+	{
+	if (aLength != iLength)
+		{
+		char* text = new char[aLength + 1];
+		if (text)
+			{
+			iLength = aLength;
+			iText = text;
+			}
+		else
+			{
+			iLength = 0;
+			delete [] iText;
+			iText = NULL;
+			}
+		}
+	return iLength;
+	}
+
+EXPORT_C void String::DeleteText(char* aText) const
+	{
+	if (aText != iText)
+		delete [] aText;
+	}
+
+EXPORT_C String::~String()
+	{
+	delete [] iText;
+	}