haiku/headers/private/servers/app/FontManager.h
Axel Dörfler ec9b3f7ca1 The font manager now utilizes a hash table to look up fonts by ID.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14777 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-11-08 16:49:33 +00:00

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/*
* Copyright 2001-2005, Haiku.
* Distributed under the terms of the MIT License.
*
* Authors:
* DarkWyrm <bpmagic@columbus.rr.com>
* Axel Dörfler, axeld@pinc-software.de
*/
#ifndef FONT_MANAGER_H
#define FONT_MANAGER_H
#include "HashTable.h"
#include <Looper.h>
#include <ObjectList.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_CACHE_H
class BPath;
class FontFamily;
class FontStyle;
class ServerFont;
/*!
\class FontManager FontManager.h
\brief Manager for the largest part of the font subsystem
*/
class FontManager : public BLooper {
public:
FontManager();
virtual ~FontManager();
status_t InitCheck() { return fInitStatus; }
void SaveRecentFontMappings();
virtual void MessageReceived(BMessage* message);
int32 CheckRevision(uid_t user);
int32 CountFamilies();
int32 CountStyles(const char *family);
FontFamily* FamilyAt(int32 index) const;
FontFamily *GetFamily(uint16 familyID) const;
FontFamily *GetFamily(const char *name);
FontStyle *GetStyleByIndex(const char *family, int32 index);
FontStyle *GetStyle(const char *family, const char *style, uint16 familyID = 0xffff,
uint16 styleID = 0xffff, uint16 face = 0);
FontStyle *GetStyle(const char *family, uint16 styleID);
FontStyle *GetStyle(uint16 familyID, uint16 styleID) const;
FontStyle* FindStyleMatchingFace(uint16 face) const;
const ServerFont* DefaultFont() const;
void AttachUser(uid_t userID);
void DetachUser(uid_t userID);
private:
struct font_directory;
struct font_mapping;
bool _LoadRecentFontMappings();
status_t _SetDefaultFont();
void _AddSystemPaths();
status_t _AddPath(const char* path);
status_t _AddPath(BEntry& entry, font_directory** _newDirectory = NULL);
FontFamily* _FindFamily(const char* family) const;
void _RemoveFamily(const char* family);
void _ScanFontsIfNecessary();
void _ScanFonts();
status_t _ScanFontDirectory(font_directory& directory);
status_t _AddFont(BPath& path);
FT_CharMap _GetSupportedCharmap(const FT_Face &face);
private:
status_t fInitStatus;
BObjectList<font_directory> fDirectories;
BObjectList<font_mapping> fMappings;
BObjectList<FontFamily> fFamilies;
HashTable fStyleHashTable;
ServerFont *fDefaultFont;
bool fScanned;
int32 fNextID;
};
extern FT_Library gFreeTypeLibrary;
extern FontManager *gFontManager;
#endif /* FONT_MANAGER_H */