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adding CoreText implementation

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50331 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor
2007-11-29 21:52:28 +00:00
parent 16bdd5e4a3
commit c07e1e2c85
2 changed files with 596 additions and 509 deletions
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528
src/mac/carbon/graphics.cpp
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@@ -696,18 +696,37 @@ public:
wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
~wxMacCoreGraphicsFontData();
#if wxMAC_USE_ATSU_TEXT
virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
#endif
#if wxMAC_USE_CORE_TEXT
CTFontRef GetCTFont() const { return m_ctFont ; }
#endif
wxColour GetColour() const { return m_colour ; }
bool GetUnderlined() const { return m_underlined ; }
private :
wxColour m_colour;
bool m_underlined;
#if wxMAC_USE_ATSU_TEXT
ATSUStyle m_macATSUIStyle;
#endif
#if wxMAC_USE_CORE_TEXT
wxCFRef< CTFontRef > m_ctFont;
#endif
};
wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
{
m_macATSUIStyle = NULL;
OSStatus status = noErr;
m_colour = col;
m_underlined = font.GetUnderlined();
#if wxMAC_USE_CORE_TEXT
#elif wxMAC_USE_ATSU_TEXT
OSStatus status;
m_ctFont.reset( wxCFRetain((CTFontRef) font.MacGetCTFont()) );
#endif
#if wxMAC_USE_ATSU_TEXT
status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
@@ -739,20 +758,23 @@ wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* rendere
atsuTags, atsuSizes, atsuValues);
wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
#elif WXMAC_USE_CG_TEXT
#endif
#if WXMAC_USE_CG_TEXT
#endif
}
wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
{
#if wxMAC_USE_CORE_TEXT
#elif wxMAC_USE_ATSU_TEXT
#endif
#if wxMAC_USE_ATSU_TEXT
if ( m_macATSUIStyle )
{
::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
m_macATSUIStyle = NULL;
}
#elif WXMAC_USE_CG_TEXT
#endif
#if WXMAC_USE_CG_TEXT
#endif
}
@@ -1720,10 +1742,39 @@ void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDoub
EnsureIsValid();
#if wxMAC_USE_CORE_TEXT
// TODO core text implementation here
#elif wxMAC_USE_ATSU_TEXT
DrawText(str, x, y, 0.0);
#elif WXMAC_USE_CG_TEXT
if ( UMAGetSystemVersion() >= 0x1050 )
{
wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
wxMacCFStringHolder text(str, wxLocale::GetSystemEncoding() );
CTFontRef font = fref->GetCTFont();
CGColorRef col = fref->GetColour().GetPixel();
CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
CFStringRef keys[] = { kCTFontAttributeName , kCTForegroundColorAttributeName, kCTUnderlineStyleAttributeName };
CFTypeRef values[] = { font, col, underlined };
wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
y += CTFontGetAscent(font);
CGContextSaveGState(m_cgContext);
CGContextTranslateCTM(m_cgContext, x, y);
CGContextScaleCTM(m_cgContext, 1, -1);
CGContextSetTextPosition(m_cgContext, 0, 0);
CTLineDraw( line, m_cgContext );
CGContextRestoreGState(m_cgContext);
return;
}
#endif
#if wxMAC_USE_ATSU_TEXT
{
DrawText(str, x, y, 0.0);
return;
}
#endif
#if WXMAC_USE_CG_TEXT
// TODO core graphics text implementation here
#endif
}
@@ -1735,115 +1786,124 @@ void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDoub
EnsureIsValid();
#if wxMAC_USE_CORE_TEXT
// default implementation takes care of rotation and calls non rotated DrawText afterwards
wxGraphicsContext::DrawText( str, x, y, angle );
#elif wxMAC_USE_ATSU_TEXT
OSStatus status = noErr;
ATSUTextLayout atsuLayout;
UniCharCount chars = str.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
if ( UMAGetSystemVersion() >= 0x1050 )
{
// default implementation takes care of rotation and calls non rotated DrawText afterwards
wxGraphicsContext::DrawText( str, x, y, angle );
return;
}
#endif
chars = unicharlen / 2;
#if wxMAC_USE_ATSU_TEXT
{
OSStatus status = noErr;
ATSUTextLayout atsuLayout;
UniCharCount chars = str.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
#endif
chars = unicharlen / 2;
#else
#if wxUSE_UNICODE
ubuf = (UniChar*) str.wc_str();
ubuf = (UniChar*) str.wc_str();
#else
wxWCharBuffer wchar = str.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
wxWCharBuffer wchar = str.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
#endif
#endif
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
status = ::ATSUSetTransientFontMatching( atsuLayout , true );
wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
int iAngle = int( angle * RAD2DEG );
if ( abs(iAngle) > 0 )
{
Fixed atsuAngle = IntToFixed( iAngle );
ATSUAttributeTag atsuTags[] =
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
status = ::ATSUSetTransientFontMatching( atsuLayout , true );
wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
int iAngle = int( angle * RAD2DEG );
if ( abs(iAngle) > 0 )
{
kATSULineRotationTag ,
};
ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
Fixed atsuAngle = IntToFixed( iAngle );
ATSUAttributeTag atsuTags[] =
{
kATSULineRotationTag ,
};
ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
sizeof( Fixed ) ,
};
ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
&atsuAngle ,
};
status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
atsuTags, atsuSizes, atsuValues );
}
{
sizeof( Fixed ) ,
};
ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
&atsuAngle ,
};
status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
atsuTags, atsuSizes, atsuValues );
}
{
ATSUAttributeTag atsuTags[] =
{
kATSUCGContextTag ,
};
ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
sizeof( CGContextRef ) ,
};
ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
&m_cgContext ,
};
status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
atsuTags, atsuSizes, atsuValues );
}
ATSUTextMeasurement textBefore, textAfter;
ATSUTextMeasurement ascent, descent;
status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
&textBefore , &textAfter, &ascent , &descent );
wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
Rect rect;
x += (int)(sin(angle) * FixedToInt(ascent));
y += (int)(cos(angle) * FixedToInt(ascent));
status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
IntToFixed(x) , IntToFixed(y) , &rect );
wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
CGContextSaveGState(m_cgContext);
CGContextTranslateCTM(m_cgContext, x, y);
CGContextScaleCTM(m_cgContext, 1, -1);
status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
IntToFixed(0) , IntToFixed(0) );
wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
CGContextRestoreGState(m_cgContext);
::ATSUDisposeTextLayout(atsuLayout);
ATSUAttributeTag atsuTags[] =
{
kATSUCGContextTag ,
};
ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
sizeof( CGContextRef ) ,
};
ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
&m_cgContext ,
};
status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
atsuTags, atsuSizes, atsuValues );
}
ATSUTextMeasurement textBefore, textAfter;
ATSUTextMeasurement ascent, descent;
status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
&textBefore , &textAfter, &ascent , &descent );
wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
Rect rect;
x += (int)(sin(angle) * FixedToInt(ascent));
y += (int)(cos(angle) * FixedToInt(ascent));
status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
IntToFixed(x) , IntToFixed(y) , &rect );
wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
CGContextSaveGState(m_cgContext);
CGContextTranslateCTM(m_cgContext, x, y);
CGContextScaleCTM(m_cgContext, 1, -1);
status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
IntToFixed(0) , IntToFixed(0) );
wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
CGContextRestoreGState(m_cgContext);
::ATSUDisposeTextLayout(atsuLayout);
#if SIZEOF_WCHAR_T == 4
free( ubuf );
free( ubuf );
#endif
#elif WXMAC_USE_CG_TEXT
return;
}
#endif
#if WXMAC_USE_CG_TEXT
// default implementation takes care of rotation and calls non rotated DrawText afterwards
wxGraphicsContext::DrawText( str, x, y, angle );
#endif
@@ -1867,63 +1927,94 @@ void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *wid
return;
#if wxMAC_USE_CORE_TEXT
// TODO core text implementation here
#elif wxMAC_USE_ATSU_TEXT
OSStatus status = noErr;
if ( UMAGetSystemVersion() >= 0x1050 )
{
wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
CTFontRef font = fref->GetCTFont();
ATSUTextLayout atsuLayout;
UniCharCount chars = str.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
wxMacCFStringHolder text(str, wxLocale::GetSystemEncoding() );
CFStringRef keys[] = { kCTFontAttributeName };
CFTypeRef values[] = { font };
wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
CGFloat w, a, d, l;
w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
if ( height )
*height = a+d+l;
if ( descent )
*descent = d;
if ( externalLeading )
*externalLeading = l;
if ( width )
*width = w;
return;
}
#endif
chars = unicharlen / 2;
#if wxMAC_USE_ATSU_TEXT
{
OSStatus status = noErr;
ATSUTextLayout atsuLayout;
UniCharCount chars = str.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
#endif
chars = unicharlen / 2;
#else
#if wxUSE_UNICODE
ubuf = (UniChar*) str.wc_str();
ubuf = (UniChar*) str.wc_str();
#else
wxWCharBuffer wchar = str.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
wxWCharBuffer wchar = str.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
#endif
#endif
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
ATSUTextMeasurement textBefore, textAfter;
ATSUTextMeasurement textAscent, textDescent;
status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
&textBefore , &textAfter, &textAscent , &textDescent );
if ( height )
*height = FixedToInt(textAscent + textDescent);
if ( descent )
*descent = FixedToInt(textDescent);
if ( externalLeading )
*externalLeading = 0;
if ( width )
*width = FixedToInt(textAfter - textBefore);
::ATSUDisposeTextLayout(atsuLayout);
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
ATSUTextMeasurement textBefore, textAfter;
ATSUTextMeasurement textAscent, textDescent;
status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
&textBefore , &textAfter, &textAscent , &textDescent );
if ( height )
*height = FixedToInt(textAscent + textDescent);
if ( descent )
*descent = FixedToInt(textDescent);
if ( externalLeading )
*externalLeading = 0;
if ( width )
*width = FixedToInt(textAfter - textBefore);
::ATSUDisposeTextLayout(atsuLayout);
#if SIZEOF_WCHAR_T == 4
free( ubuf ) ;
free( ubuf ) ;
#endif
#elif WXMAC_USE_CG_TEXT
return;
}
#endif
#if WXMAC_USE_CG_TEXT
// TODO core graphics text implementation here
#endif
}
@@ -1937,60 +2028,83 @@ void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArr
return;
#if wxMAC_USE_CORE_TEXT
// TODO core text implementation here
#elif wxMAC_USE_ATSU_TEXT
ATSUTextLayout atsuLayout;
UniCharCount chars = text.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = text.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
#endif
chars = unicharlen / 2;
#else
#if wxUSE_UNICODE
ubuf = (UniChar*) text.wc_str();
#else
wxWCharBuffer wchar = text.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
#endif
#endif
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
for ( int pos = 0; pos < (int)chars; pos ++ )
{
unsigned long actualNumberOfBounds = 0;
ATSTrapezoid glyphBounds;
// We get a single bound, since the text should only require one. If it requires more, there is an issue
OSStatus result;
result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
if (result != noErr || actualNumberOfBounds != 1 )
return;
widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
//unsigned char uch = s[i];
wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
CTFontRef font = fref->GetCTFont();
wxMacCFStringHolder t(text, wxLocale::GetSystemEncoding() );
CFStringRef keys[] = { kCTFontAttributeName };
CFTypeRef values[] = { font };
wxCFRef<CFDictionaryRef> attributes( CFDictionaryCreate(kCFAllocatorDefault, (const void**) &keys, (const void**) &values,
WXSIZEOF( keys ), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks) );
wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, t, attributes) );
wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
int chars = text.length();
for ( int pos = 0; pos < (int)chars; pos ++ )
{
widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
}
return;
}
::ATSUDisposeTextLayout(atsuLayout);
#if SIZEOF_WCHAR_T == 4
free( ubuf ) ;
#endif
#elif WXMAC_USE_CG_TEXT
#if wxMAC_USE_ATSU_TEXT
{
ATSUTextLayout atsuLayout;
UniCharCount chars = text.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = text.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
#endif
chars = unicharlen / 2;
#else
#if wxUSE_UNICODE
ubuf = (UniChar*) text.wc_str();
#else
wxWCharBuffer wchar = text.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
#endif
#endif
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
for ( int pos = 0; pos < (int)chars; pos ++ )
{
unsigned long actualNumberOfBounds = 0;
ATSTrapezoid glyphBounds;
// We get a single bound, since the text should only require one. If it requires more, there is an issue
OSStatus result;
result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
if (result != noErr || actualNumberOfBounds != 1 )
return;
widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
//unsigned char uch = s[i];
}
::ATSUDisposeTextLayout(atsuLayout);
#if SIZEOF_WCHAR_T == 4
free( ubuf ) ;
#endif
}
#endif
#if WXMAC_USE_CG_TEXT
// TODO core graphics text implementation here
#endif
}