/////////////////////////////////////////////////////////////////////////////
-// Name: font.cpp
+// Name: src/msw/font.cpp
// Purpose: wxFont class
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows licence
+// Copyright: (c) wxWindows team
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
#endif
#ifndef WX_PRECOMP
- #include <stdio.h>
#include "wx/setup.h"
#include "wx/list.h"
#include "wx/utils.h"
#include "wx/app.h"
#include "wx/font.h"
+ #include "wx/log.h"
#endif // WX_PRECOMP
#include "wx/msw/private.h"
+#include "wx/fontutil.h"
+#include "wx/fontmap.h"
+
+#include "wx/tokenzr.h"
+
IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
// ----------------------------------------------------------------------------
// wxFontRefData - the internal description of the font
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxFontRefData: public wxGDIRefData
{
-friend class WXDLLEXPORT wxFont;
-
public:
+ // constructors
wxFontRefData()
{
- Init(12, wxDEFAULT, wxNORMAL, wxNORMAL, FALSE,
- "", wxFONTENCODING_DEFAULT);
- }
-
- wxFontRefData(const wxFontRefData& data)
- {
- Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
- data.m_underlined, data.m_faceName, data.m_encoding);
-
- m_fontId = data.m_fontId;
+ Init(-1, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL,
+ FALSE, _T(""), wxFONTENCODING_DEFAULT);
}
wxFontRefData(int size,
Init(size, family, style, weight, underlined, faceName, encoding);
}
+ wxFontRefData(const wxNativeFontInfo& info, WXHFONT hFont = 0)
+ {
+ Init(info, hFont);
+ }
+
+ wxFontRefData(const wxFontRefData& data)
+ {
+ if ( data.m_nativeFontInfoOk )
+ {
+ Init(data.m_nativeFontInfo);
+ }
+ else
+ {
+ Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
+ data.m_underlined, data.m_faceName, data.m_encoding);
+ }
+ }
+
virtual ~wxFontRefData();
+ // operations
+ bool Alloc(wxFont *font);
+
+ void Free();
+
+ // all wxFont accessors
+ int GetPointSize() const
+ {
+ return m_nativeFontInfoOk ? m_nativeFontInfo.GetPointSize()
+ : m_pointSize;
+ }
+
+ int GetFamily() const
+ {
+ return m_family;
+ }
+
+ int GetStyle() const
+ {
+ return m_nativeFontInfoOk ? m_nativeFontInfo.GetStyle()
+ : m_style;
+ }
+
+ int GetWeight() const
+ {
+ return m_nativeFontInfoOk ? m_nativeFontInfo.GetWeight()
+ : m_weight;
+ }
+
+ bool GetUnderlined() const
+ {
+ return m_nativeFontInfoOk ? m_nativeFontInfo.GetUnderlined()
+ : m_underlined;
+ }
+
+ wxString GetFaceName() const
+ {
+ wxString s;
+ if ( m_nativeFontInfoOk )
+ s = m_nativeFontInfo.GetFaceName();
+ else
+ s = m_faceName;
+
+ return s;
+ }
+
+ wxFontEncoding GetEncoding() const
+ {
+ return m_nativeFontInfoOk ? m_nativeFontInfo.GetEncoding()
+ : m_encoding;
+ }
+
+ WXHFONT GetHFONT() const { return m_hFont; }
+
+ // ... and setters
+ void SetPointSize(int pointSize)
+ {
+ if ( m_nativeFontInfoOk )
+ m_nativeFontInfo.SetPointSize(pointSize);
+ else
+ m_pointSize = pointSize;
+ }
+
+ void SetFamily(int family)
+ {
+ m_family = family;
+ }
+
+ void SetStyle(int style)
+ {
+ if ( m_nativeFontInfoOk )
+ m_nativeFontInfo.SetStyle((wxFontStyle)style);
+ else
+ m_style = style;
+ }
+
+ void SetWeight(int weight)
+ {
+ if ( m_nativeFontInfoOk )
+ m_nativeFontInfo.SetWeight((wxFontWeight)weight);
+ else
+ m_weight = weight;
+ }
+
+ void SetFaceName(const wxString& faceName)
+ {
+ if ( m_nativeFontInfoOk )
+ m_nativeFontInfo.SetFaceName(faceName);
+ else
+ m_faceName = faceName;
+ }
+
+ void SetUnderlined(bool underlined)
+ {
+ if ( m_nativeFontInfoOk )
+ m_nativeFontInfo.SetUnderlined(underlined);
+ else
+ m_underlined = underlined;
+ }
+
+ void SetEncoding(wxFontEncoding encoding)
+ {
+ if ( m_nativeFontInfoOk )
+ m_nativeFontInfo.SetEncoding(encoding);
+ else
+ m_encoding = encoding;
+ }
+
+ // native font info tests
+ bool HasNativeFontInfo() const { return m_nativeFontInfoOk; }
+
+ const wxNativeFontInfo& GetNativeFontInfo() const
+ { return m_nativeFontInfo; }
+
protected:
// common part of all ctors
void Init(int size,
const wxString& faceName,
wxFontEncoding encoding);
- // If TRUE, the pointer to the actual font is temporary and SHOULD NOT BE
- // DELETED by destructor
- bool m_temporary;
-
- int m_fontId;
+ void Init(const wxNativeFontInfo& info, WXHFONT hFont = 0);
// font characterstics
int m_pointSize;
// Windows font handle
WXHFONT m_hFont;
+
+ // Native font info
+ wxNativeFontInfo m_nativeFontInfo;
+ bool m_nativeFontInfoOk;
};
// ============================================================================
wxFontEncoding encoding)
{
m_style = style;
- m_pointSize = pointSize;
+ m_pointSize = pointSize == -1 ? wxNORMAL_FONT->GetPointSize() : pointSize;
m_family = family;
m_style = style;
m_weight = weight;
m_faceName = faceName;
m_encoding = encoding;
- m_fontId = 0;
- m_temporary = FALSE;
-
m_hFont = 0;
+
+ m_nativeFontInfoOk = FALSE;
+}
+
+void wxFontRefData::Init(const wxNativeFontInfo& info, WXHFONT hFont)
+{
+ // we don't really need the family, what for?
+#if 0
+ // extract family from pitch-and-family
+ int lfFamily = info.lf.lfPitchAndFamily;
+ if ( lfFamily & FIXED_PITCH )
+ lfFamily -= FIXED_PITCH;
+ if ( lfFamily & VARIABLE_PITCH )
+ lfFamily -= VARIABLE_PITCH;
+
+ switch ( lfFamily )
+ {
+ case FF_ROMAN:
+ m_family = wxROMAN;
+ break;
+
+ case FF_SWISS:
+ m_family = wxSWISS;
+ break;
+
+ case FF_SCRIPT:
+ m_family = wxSCRIPT;
+ break;
+
+ case FF_MODERN:
+ m_family = wxMODERN;
+ break;
+
+ case FF_DECORATIVE:
+ m_family = wxDECORATIVE;
+ break;
+
+ default:
+ m_family = wxSWISS;
+ }
+#endif // 0
+
+ // hFont may be zero, or it be passed in case we really want to
+ // use the exact font created in the underlying system
+ // (for example where we can't guarantee conversion from HFONT
+ // to LOGFONT back to HFONT)
+ m_hFont = hFont;
+
+ m_nativeFontInfoOk = TRUE;
+ m_nativeFontInfo = info;
}
wxFontRefData::~wxFontRefData()
+{
+ Free();
+}
+
+bool wxFontRefData::Alloc(wxFont *font)
+{
+ if ( !m_nativeFontInfoOk )
+ {
+ wxFillLogFont(&m_nativeFontInfo.lf, font);
+ m_nativeFontInfoOk = TRUE;
+ }
+
+ HFONT hfont = ::CreateFontIndirect(&m_nativeFontInfo.lf);
+ if ( !hfont )
+ {
+ wxLogLastError(wxT("CreateFont"));
+
+ return FALSE;
+ }
+
+ m_hFont = (WXHFONT)hfont;
+
+ return TRUE;
+}
+
+void wxFontRefData::Free()
{
if ( m_hFont )
{
if ( !::DeleteObject((HFONT) m_hFont) )
{
- wxLogLastError("DeleteObject(font)");
+ wxLogLastError(wxT("DeleteObject(font)"));
}
+
+ m_hFont = 0;
}
}
+// ----------------------------------------------------------------------------
+// wxNativeFontInfo
+// ----------------------------------------------------------------------------
+
+void wxNativeFontInfo::Init()
+{
+ wxZeroMemory(lf);
+}
+
+int wxNativeFontInfo::GetPointSize() const
+{
+ // FIXME: using the screen here results in incorrect font size calculation
+ // for printing!
+ const int ppInch = ::GetDeviceCaps(ScreenHDC(), LOGPIXELSY);
+
+ return (int) (((72.0*(double)abs(lf.lfHeight)) / (double) ppInch) + 0.5);
+}
+
+wxFontStyle wxNativeFontInfo::GetStyle() const
+{
+ return lf.lfItalic ? wxFONTSTYLE_ITALIC : wxFONTSTYLE_NORMAL;
+}
+
+wxFontWeight wxNativeFontInfo::GetWeight() const
+{
+ if ( lf.lfWeight <= 300 )
+ return wxFONTWEIGHT_LIGHT;
+
+ if ( lf.lfWeight >= 600 )
+ return wxFONTWEIGHT_BOLD;
+
+ return wxFONTWEIGHT_NORMAL;
+}
+
+bool wxNativeFontInfo::GetUnderlined() const
+{
+ return lf.lfUnderline != 0;
+}
+
+wxString wxNativeFontInfo::GetFaceName() const
+{
+ return lf.lfFaceName;
+}
+
+wxFontFamily wxNativeFontInfo::GetFamily() const
+{
+ // extract family from pitch-and-family
+ int lfFamily = lf.lfPitchAndFamily;
+ int family;
+
+ if ( lfFamily & FIXED_PITCH )
+ lfFamily -= FIXED_PITCH;
+ if ( lfFamily & VARIABLE_PITCH )
+ lfFamily -= VARIABLE_PITCH;
+
+ switch ( lfFamily )
+ {
+ case FF_ROMAN:
+ family = wxROMAN;
+ break;
+
+ case FF_SWISS:
+ family = wxSWISS;
+ break;
+
+ case FF_SCRIPT:
+ family = wxSCRIPT;
+ break;
+
+ case FF_MODERN:
+ family = wxMODERN;
+ break;
+
+ case FF_DECORATIVE:
+ family = wxDECORATIVE;
+ break;
+
+ default:
+ family = wxSWISS;
+ }
+ return (wxFontFamily)family;
+}
+
+wxFontEncoding wxNativeFontInfo::GetEncoding() const
+{
+ return wxGetFontEncFromCharSet(lf.lfCharSet);
+}
+
+void wxNativeFontInfo::SetPointSize(int pointsize)
+{
+#if wxFONT_SIZE_COMPATIBILITY
+ // Incorrect, but compatible with old wxWindows behaviour
+ lf.lfHeight = (pointSize*ppInch)/72;
+#else // wxFONT_SIZE_COMPATIBILITY
+ // FIXME: using the screen here results in incorrect font size calculation
+ // for printing!
+ const int ppInch = ::GetDeviceCaps(ScreenHDC(), LOGPIXELSY);
+
+ lf.lfHeight = -(int)((pointsize*((double)ppInch)/72.0) + 0.5);
+#endif // wxFONT_SIZE_COMPATIBILITY/!wxFONT_SIZE_COMPATIBILITY
+}
+
+void wxNativeFontInfo::SetStyle(wxFontStyle style)
+{
+ switch ( style )
+ {
+ default:
+ wxFAIL_MSG( _T("unknown font style") );
+ // fall through
+
+ case wxFONTSTYLE_NORMAL:
+ break;
+
+ case wxFONTSTYLE_ITALIC:
+ case wxFONTSTYLE_SLANT:
+ lf.lfItalic = TRUE;
+ break;
+ }
+}
+
+void wxNativeFontInfo::SetWeight(wxFontWeight weight)
+{
+ switch ( weight )
+ {
+ default:
+ wxFAIL_MSG( _T("unknown font weight") );
+ // fall through
+
+ case wxFONTWEIGHT_NORMAL:
+ lf.lfWeight = FW_NORMAL;
+ break;
+
+ case wxFONTWEIGHT_LIGHT:
+ lf.lfWeight = FW_LIGHT;
+ break;
+
+ case wxFONTWEIGHT_BOLD:
+ lf.lfWeight = FW_BOLD;
+ break;
+ }
+}
+
+void wxNativeFontInfo::SetUnderlined(bool underlined)
+{
+ lf.lfUnderline = underlined;
+}
+
+void wxNativeFontInfo::SetFaceName(wxString facename)
+{
+ wxStrncpy(lf.lfFaceName, facename, WXSIZEOF(lf.lfFaceName));
+}
+
+void wxNativeFontInfo::SetFamily(wxFontFamily family)
+{
+ int ff_family;
+ wxString facename;
+
+ switch ( family )
+ {
+ case wxSCRIPT:
+ ff_family = FF_SCRIPT;
+ facename = _T("Script");
+ break;
+
+ case wxDECORATIVE:
+ ff_family = FF_DECORATIVE;
+ facename = _T("Old English Text MT");
+ break;
+
+ case wxROMAN:
+ ff_family = FF_ROMAN;
+ facename = _T("Times New Roman");
+ break;
+
+ case wxTELETYPE:
+ case wxMODERN:
+ ff_family = FF_MODERN;
+ facename = _T("Courier New");
+ break;
+
+ case wxSWISS:
+ ff_family = FF_SWISS;
+ facename = _T("Arial");
+ break;
+
+ case wxDEFAULT:
+ default:
+ ff_family = FF_SWISS;
+ facename = _T("MS Sans Serif");
+ }
+
+ lf.lfPitchAndFamily = DEFAULT_PITCH | ff_family;
+
+ if ( !wxStrlen(lf.lfFaceName) )
+ {
+ SetFaceName(facename);
+ }
+}
+
+void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding)
+{
+ wxNativeEncodingInfo info;
+ if ( !wxGetNativeFontEncoding(encoding, &info) )
+ {
+#if wxUSE_FONTMAP
+ if ( wxTheFontMapper->GetAltForEncoding(encoding, &info) )
+ {
+ if ( !info.facename.empty() )
+ {
+ // if we have this encoding only in some particular facename, use
+ // the facename - it is better to show the correct characters in a
+ // wrong facename than unreadable text in a correct one
+ SetFaceName(info.facename);
+ }
+ }
+ else
+#endif // wxUSE_FONTMAP
+ {
+ // unsupported encoding, replace with the default
+ info.charset = ANSI_CHARSET;
+ }
+ }
+
+ lf.lfCharSet = info.charset;
+}
+
+bool wxNativeFontInfo::FromString(const wxString& s)
+{
+ long l;
+
+ wxStringTokenizer tokenizer(s, _T(";"));
+
+ // first the version
+ wxString token = tokenizer.GetNextToken();
+ if ( token != _T('0') )
+ return FALSE;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfHeight = l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfWidth = l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfEscapement = l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfOrientation = l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfWeight = l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfItalic = (BYTE)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfUnderline = (BYTE)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfStrikeOut = (BYTE)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfCharSet = (BYTE)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfOutPrecision = (BYTE)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfClipPrecision = (BYTE)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfQuality = (BYTE)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return FALSE;
+ lf.lfPitchAndFamily = (BYTE)l;
+
+ token = tokenizer.GetNextToken();
+ if(!token)
+ return FALSE;
+ wxStrcpy(lf.lfFaceName, token.c_str());
+
+ return TRUE;
+}
+
+wxString wxNativeFontInfo::ToString() const
+{
+ wxString s;
+
+ s.Printf(_T("%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%s"),
+ 0, // version, in case we want to change the format later
+ lf.lfHeight,
+ lf.lfWidth,
+ lf.lfEscapement,
+ lf.lfOrientation,
+ lf.lfWeight,
+ lf.lfItalic,
+ lf.lfUnderline,
+ lf.lfStrikeOut,
+ lf.lfCharSet,
+ lf.lfOutPrecision,
+ lf.lfClipPrecision,
+ lf.lfQuality,
+ lf.lfPitchAndFamily,
+ lf.lfFaceName);
+
+ return s;
+}
+
// ----------------------------------------------------------------------------
// wxFont
// ----------------------------------------------------------------------------
void wxFont::Init()
{
- if ( wxTheFontList )
- wxTheFontList->Append(this);
+}
+
+bool wxFont::Create(const wxNativeFontInfo& info, WXHFONT hFont)
+{
+ UnRef();
+
+ m_refData = new wxFontRefData(info, hFont);
+
+ RealizeResource();
+
+ return TRUE;
+}
+
+wxFont::wxFont(const wxString& fontdesc)
+{
+ wxNativeFontInfo info;
+ if ( info.FromString(fontdesc) )
+ (void)Create(info);
}
/* Constructor for a font. Note that the real construction is done
wxFontEncoding encoding)
{
UnRef();
+
+ // wxDEFAULT is a valid value for the font size too so we must treat it
+ // specially here (otherwise the size would be 70 == wxDEFAULT value)
+ if ( pointSize == wxDEFAULT )
+ {
+ pointSize = wxNORMAL_FONT->GetPointSize();
+ }
+
m_refData = new wxFontRefData(pointSize, family, style, weight,
underlined, faceName, encoding);
wxFont::~wxFont()
{
- if ( wxTheFontList )
- wxTheFontList->DeleteObject(this);
}
// ----------------------------------------------------------------------------
return TRUE;
}
- LOGFONT lf;
- wxFillLogFont(&lf, this);
- M_FONTDATA->m_hFont = (WXHFONT)::CreateFontIndirect(&lf);
- M_FONTDATA->m_faceName = lf.lfFaceName;
- if ( !M_FONTDATA->m_hFont )
- {
- wxLogLastError("CreateFont");
-
- return FALSE;
- }
-
- return TRUE;
+ return M_FONTDATA->Alloc(this);
}
-bool wxFont::FreeResource(bool force)
+bool wxFont::FreeResource(bool WXUNUSED(force))
{
if ( GetResourceHandle() )
{
- if ( !::DeleteObject((HFONT) M_FONTDATA->m_hFont) )
- {
- wxLogLastError("DeleteObject(font)");
- }
-
- M_FONTDATA->m_hFont = 0;
+ M_FONTDATA->Free();
return TRUE;
}
+
return FALSE;
}
WXHANDLE wxFont::GetResourceHandle()
{
- if ( !M_FONTDATA )
- return 0;
- else
- return (WXHANDLE)M_FONTDATA->m_hFont;
+ return GetHFONT();
+}
+
+WXHFONT wxFont::GetHFONT() const
+{
+ return M_FONTDATA ? M_FONTDATA->GetHFONT() : 0;
}
bool wxFont::IsFree() const
{
- return (M_FONTDATA && (M_FONTDATA->m_hFont == 0));
+ return M_FONTDATA && (M_FONTDATA->GetHFONT() == 0);
}
void wxFont::Unshare()
{
Unshare();
- M_FONTDATA->m_pointSize = pointSize;
+ M_FONTDATA->SetPointSize(pointSize);
RealizeResource();
}
{
Unshare();
- M_FONTDATA->m_family = family;
+ M_FONTDATA->SetFamily(family);
RealizeResource();
}
{
Unshare();
- M_FONTDATA->m_style = style;
+ M_FONTDATA->SetStyle(style);
RealizeResource();
}
{
Unshare();
- M_FONTDATA->m_weight = weight;
+ M_FONTDATA->SetWeight(weight);
RealizeResource();
}
{
Unshare();
- M_FONTDATA->m_faceName = faceName;
+ M_FONTDATA->SetFaceName(faceName);
RealizeResource();
}
{
Unshare();
- M_FONTDATA->m_underlined = underlined;
+ M_FONTDATA->SetUnderlined(underlined);
RealizeResource();
}
{
Unshare();
- M_FONTDATA->m_encoding = encoding;
+ M_FONTDATA->SetEncoding(encoding);
+
+ RealizeResource();
+}
+
+void wxFont::SetNativeFontInfo(const wxNativeFontInfo& info)
+{
+ Unshare();
+
+ FreeResource();
+
+ *M_FONTDATA = wxFontRefData(info);
RealizeResource();
}
int wxFont::GetPointSize() const
{
- return M_FONTDATA->m_pointSize;
+ wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
+
+ return M_FONTDATA->GetPointSize();
}
int wxFont::GetFamily() const
{
- return M_FONTDATA->m_family;
-}
+ wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
-int wxFont::GetFontId() const
-{
- return M_FONTDATA->m_fontId;
+ return M_FONTDATA->GetFamily();
}
int wxFont::GetStyle() const
{
- return M_FONTDATA->m_style;
+ wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
+
+ return M_FONTDATA->GetStyle();
}
int wxFont::GetWeight() const
{
- return M_FONTDATA->m_weight;
+ wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
+
+ return M_FONTDATA->GetWeight();
}
bool wxFont::GetUnderlined() const
{
- return M_FONTDATA->m_underlined;
+ wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
+
+ return M_FONTDATA->GetUnderlined();
}
wxString wxFont::GetFaceName() const
{
- wxString str;
- if ( M_FONTDATA )
- str = M_FONTDATA->m_faceName;
- return str;
+ wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
+
+ return M_FONTDATA->GetFaceName();
}
wxFontEncoding wxFont::GetEncoding() const
{
- return M_FONTDATA->m_encoding;
+ wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
+
+ return M_FONTDATA->GetEncoding();
+}
+
+wxNativeFontInfo *wxFont::GetNativeFontInfo() const
+{
+ if ( M_FONTDATA->HasNativeFontInfo() )
+ return new wxNativeFontInfo(M_FONTDATA->GetNativeFontInfo());
+
+ return 0;
}
projects / wxWidgets.git / blobdiff