CFontCache Class Reference

#include <CFontCache.hpp>

Collaboration diagram for CFontCache:

Public Member Functions
void	Read ()
void	SetFontDir (const LPCWSTR Path)
const CStringW &	FontPath () const
CStringW	GetFontFilePath (const PCWSTR Path) const
size_t	Size ()
CStringW	Name (size_t Index)
CStringW	File (size_t Index)
CFontInfo *	Find (const FontPidlEntry *fontEntry)
BOOL	IsMarkDeleted (size_t Index) const
void	MarkDeleted (const FontPidlEntry *fontEntry)
CStringW	Filename (CFontInfo *info, bool alwaysFullPath=false)

Protected Member Functions
	CFontCache ()
void	Insert (CAtlList< CFontInfo > &fonts, const CStringW &KeyName, PCWSTR Value)

Private Attributes
CSimpleArray< CFontInfo >	m_Fonts
CStringW	m_FontFolderPath

Friends
class	CFontExtModule

Detailed Description

Definition at line 39 of file CFontCache.hpp.

Constructor & Destructor Documentation

CFontCache()

CFontCache::CFontCache ( )

protected

Definition at line 117 of file CFontCache.cpp.

{
}

Member Function Documentation

File()

CStringW CFontCache::File

(

size_t

Index

)

Definition at line 146 of file CFontCache.cpp.

{
    if (m_Fonts.GetSize() == 0)
        Read();
 
    if ((INT)Index >= m_Fonts.GetSize())
        return L"";
 
    return m_Fonts[Index].File();
}

Referenced by CEnumFonts::Next(), and CFontExt::ParseDisplayName().

Filename()

CStringW CFontCache::Filename	(	CFontInfo *	info,
		bool	alwaysFullPath = false
	)

Definition at line 193 of file CFontCache.cpp.

{
    CStringW File;
    if (info)
    {
        File = info->File();
 
        if (!File.IsEmpty() && alwaysFullPath)
        {
            // Ensure this is a full path
            if (PathIsRelativeW(File))
            {
                File = m_FontFolderPath + File;
            }
        }
    }
 
    return File;
}

Referenced by _CDataObject_CreateInstance(), and CFontInfo::ReadAttrs().

Find()

CFontInfo * CFontCache::Find

(

const FontPidlEntry *

fontEntry

)

Definition at line 157 of file CFontCache.cpp.

{
    if (m_Fonts.GetSize() == 0)
        Read();
 
    for (INT i = 0; i < m_Fonts.GetSize(); ++i)
    {
        if (m_Fonts[i].Name().CompareNoCase(fontEntry->Name()) == 0)
        {
            return &m_Fonts[i];
        }
    }
    return nullptr;
}

Referenced by _CDataObject_CreateInstance(), CFontExt::CompareIDs(), and CFontExt::GetDetailsOf().

FontPath()

const CStringW & CFontCache::FontPath ( ) const

inline

Definition at line 54 of file CFontCache.hpp.

{ return m_FontFolderPath; }

Referenced by InstallFontFiles().

GetFontFilePath()

CStringW CFontCache::GetFontFilePath

(

const PCWSTR

Path

)

const

Definition at line 236 of file CFontCache.cpp.

{
    if (PathIsRelativeW(Path))
        return m_FontFolderPath + Path;
    return Path;
}

Referenced by DeleteFontFiles(), CFontExt::GetDisplayNameOf(), CFontExt::GetUIObjectOf(), Insert(), CFontExt::ParseDisplayName(), and RunFontViewer().

Insert()

void CFontCache::Insert ( CAtlList< CFontInfo > &  fonts, const CStringW &  KeyName, PCWSTR  Value  )

protected

Definition at line 213 of file CFontCache.cpp.

{
    CFontInfo newInfo(KeyName, Value);
 
    CStringW strFontFile = g_FontCache->GetFontFilePath(newInfo.File());
    if (!PathFileExistsW(strFontFile))
        return;
 
    POSITION it = fonts.GetHeadPosition();
    while (it != NULL)
    {
        POSITION lastit = it;
        const CFontInfo& info = fonts.GetNext(it);
        if (info.Name().CompareNoCase(KeyName) >= 0)
        {
            fonts.InsertBefore(lastit, newInfo);
            return;
        }
    }
 
    fonts.AddTail(newInfo);
}

Referenced by Read().

IsMarkDeleted()

BOOL CFontCache::IsMarkDeleted

(

size_t

Index

)

const

Definition at line 172 of file CFontCache.cpp.

{
    if ((INT)Index >= m_Fonts.GetSize())
        return FALSE;
    return m_Fonts[Index].IsMarkDeleted();
}

Referenced by CEnumFonts::Next(), and CEnumFonts::Skip().

MarkDeleted()

void CFontCache::MarkDeleted

(

const FontPidlEntry *

fontEntry

)

Definition at line 181 of file CFontCache.cpp.

{
    for (INT i = 0; i < m_Fonts.GetSize(); ++i)
    {
        if (m_Fonts[i].Name().CompareNoCase(fontEntry->Name()) == 0)
        {
            m_Fonts[i].MarkDeleted();
            break;
        }
    }
}

Referenced by DeleteFontFiles().

Name()

CStringW CFontCache::Name

(

size_t

Index

)

Definition at line 135 of file CFontCache.cpp.

{
    if (m_Fonts.GetSize() == 0)
        Read();
 
    if ((INT)Index >= m_Fonts.GetSize())
        return L"";
 
    return m_Fonts[Index].Name();
}

Referenced by CEnumFonts::Next(), and CFontExt::ParseDisplayName().

Read()

void CFontCache::Read

(

)

Definition at line 243 of file CFontCache.cpp.

{
    CRegKey key;
    LSTATUS error = key.Open(FONT_HIVE, FONT_KEY, KEY_READ);
    if (error != ERROR_SUCCESS)
    {
        ERR("Can't open registry: %ld\n", error);
        return;
    }
 
    CComHeapPtr<WCHAR> Name, Value;
    DWORD cchName = MAX_PATH, cchValue = MAX_PATH;
    if (!Name.Allocate(cchName) || !Value.Allocate(cchValue))
    {
        ERR("Out of memory\n");
        return;
    }
 
    // Enumerate all registered font names
    CAtlList<CFontInfo> fonts;
    for (DWORD iItem = 0;; ++iItem)
    {
        DWORD cchName2 = cchName, cbValue = cchValue * sizeof(WCHAR);
        error = RegEnumValueW(key, iItem, Name, &cchName2, NULL, NULL,
                              (PBYTE)(PWSTR)Value, &cbValue);
        if (error == ERROR_MORE_DATA)
        {
            cchName += 128;
            cchValue += 128;
            if (!Name.Reallocate(cchName) || !Value.Reallocate(cchValue))
            {
                ERR("Out of memory\n");
                break;
            }
            --iItem;
            continue;
        }
 
        if (error != ERROR_SUCCESS)
            break;
 
        if (Name[0] && Value[0])
        {
            // Insert will create an ordered list (sorted)
            Insert(fonts, (PCWSTR)Name, (PCWSTR)Value);
        }
    }
 
    // Move the fonts from a list to an array (for easy indexing)
    m_Fonts.RemoveAll();
    POSITION it = fonts.GetHeadPosition();
    while (it != NULL)
        m_Fonts.Add(fonts.GetNext(it));
}

Referenced by CFontExt::Drop(), File(), CFontFolderViewCB::FilterEvent(), Find(), Name(), CFontExt::ParseDisplayName(), and Size().

SetFontDir()

void CFontCache::SetFontDir

(

const LPCWSTR

Path

)

Definition at line 121 of file CFontCache.cpp.

{
    if (m_FontFolderPath.IsEmpty())
        m_FontFolderPath = Path;
}

Referenced by CFontExt::Initialize().

Size()

size_t CFontCache::Size

(

)

Definition at line 127 of file CFontCache.cpp.

{
    if (m_Fonts.GetSize() == 0)
        Read();
 
    return m_Fonts.GetSize();
}

Referenced by CEnumFonts::Next(), CFontExt::ParseDisplayName(), and CEnumFonts::Skip().

Friends And Related Function Documentation

CFontExtModule

friend class CFontExtModule

friend

Definition at line 66 of file CFontCache.hpp.

Member Data Documentation

m_FontFolderPath

CStringW CFontCache::m_FontFolderPath

private

Definition at line 43 of file CFontCache.hpp.

Referenced by Filename(), FontPath(), GetFontFilePath(), and SetFontDir().

m_Fonts

CSimpleArray<CFontInfo> CFontCache::m_Fonts

private

Definition at line 42 of file CFontCache.hpp.

Referenced by File(), Find(), IsMarkDeleted(), MarkDeleted(), Name(), Read(), and Size().

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The documentation for this class was generated from the following files:

• dll/shellext/fontext/CFontCache.hpp
• dll/shellext/fontext/CFontCache.cpp