add character set support

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4088 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/support/CharacterSet.cpp

@@ -0,0 +1,72 @@
+#include <CharacterSet.h>
+
+namespace BPrivate {
+
+BCharacterSet::BCharacterSet(uint32 _id, uint32 _MIBenum, const char * _print_name,
+                             const char * _iana_name, const char * _mime_name,
+                             const char ** _aliases)
+{
+	id = _id;
+	MIBenum = _MIBenum;
+	print_name = _print_name;
+	iana_name = _iana_name;
+	mime_name = _mime_name;
+	aliases_count = 0;
+	while (_aliases[aliases_count] != 0) {
+		aliases_count++;
+	}
+	aliases = _aliases;
+}
+
+uint32
+BCharacterSet::GetFontID() const
+{
+	return id;
+}
+
+uint32
+BCharacterSet::GetConversionID() const
+{
+	return id-1;
+}
+
+uint32
+BCharacterSet::GetMIBenum() const
+{
+	return MIBenum;
+}
+
+const char *
+BCharacterSet::GetName() const
+{
+	return iana_name;
+}
+
+const char *
+BCharacterSet::GetPrintName() const
+{
+	return print_name;
+}
+
+const char *
+BCharacterSet::GetMIMEName() const
+{
+	return mime_name;
+}
+
+int32
+BCharacterSet::CountAliases() const
+{
+	return aliases_count;
+}
+
+const char *
+BCharacterSet::AliasAt(uint32 index) const
+{
+	if (index >= aliases_count) {
+		return 0;
+	}
+	return aliases[index];
+}
+
+}

src/kits/support/CharacterSetRoster.cpp

@@ -0,0 +1,99 @@
+#include <CharacterSet.h>
+#include <CharacterSetRoster.h>
+#include "character_sets.h"
+
+namespace BPrivate {
+
+BCharacterSetRoster::BCharacterSetRoster()
+{
+	index = 0;
+}
+
+BCharacterSetRoster::~BCharacterSetRoster()
+{
+	// nothing to do
+}
+
+status_t
+BCharacterSetRoster::GetNextCharacterSet(BCharacterSet * charset)
+{
+	if (charset == 0) {
+		return B_BAD_VALUE;
+	}
+	if (index >= character_sets_by_id_count) {
+		return B_BAD_VALUE;
+	}	
+	*charset = *character_sets_by_id[index++];
+	return B_NO_ERROR;
+}
+
+status_t
+BCharacterSetRoster::RewindCharacterSets()
+{
+	index = 0;
+	if (index >= character_sets_by_id_count) {
+		return B_BAD_VALUE;
+	}
+	return B_NO_ERROR;
+}
+
+status_t
+BCharacterSetRoster::StartWatching(BMessenger target)
+{
+	// TODO: implement it
+	return B_ERROR;
+}
+
+status_t
+BCharacterSetRoster::StopWatching(BMessenger target)
+{
+	// TODO: implement it
+	return B_ERROR;
+}
+
+const BCharacterSet * 
+BCharacterSetRoster::GetCharacterSetByFontID(uint32 id)
+{
+	return character_sets_by_id[id];
+}
+
+const BCharacterSet * 
+BCharacterSetRoster::GetCharacterSetByConversionID(uint32 id)
+{
+	return character_sets_by_id[id+1];
+}
+
+const BCharacterSet * 
+BCharacterSetRoster::GetCharacterSetByMIBenum(uint32 MIBenum)
+{
+	return character_sets_by_MIBenum[MIBenum];
+}
+
+const BCharacterSet * 
+BCharacterSetRoster::FindCharacterSetByPrintName(char * name)
+{
+	for (int id = 0 ; (id < character_sets_by_id_count) ; id++) {
+		if (strcmp(character_sets_by_id[id]->GetPrintName(),name) == 0) {
+			return character_sets_by_id[id];
+		}
+	}
+	return 0;
+}
+
+const BCharacterSet * 
+BCharacterSetRoster::FindCharacterSetByName(char * name)
+{
+	for (int id = 0 ; (id < character_sets_by_id_count) ; id++) {
+		if (strcmp(character_sets_by_id[id]->GetName(),name) == 0) {
+			return character_sets_by_id[id];
+		}
+		for (int alias = 0 ; (alias < character_sets_by_id[id]->CountAliases()) ; alias++) {
+			if (strcmp(character_sets_by_id[id]->AliasAt(alias),name) == 0) {
+				return character_sets_by_id[id];
+			}
+		}
+	}
+	return 0;
+}
+
+}