Home | History | Annotate | Download | only in wx 
      1 /*
      2  * Copyright (C) 2010 Kevin Ollivier, Stefan Csomor  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "config.h"
     30 #include "FontPlatformData.h"
     31 
     32 #include <wx/defs.h>
     33 #include <wx/font.h>
     34 #include <wx/fontutil.h>
     35 
     36 #if !wxCHECK_VERSION(2,9,0)
     37 #include <wx/mac/private.h>
     38 #else
     39 #include <wx/osx/private.h>
     40 #endif
     41 
     42 #if !wxCHECK_VERSION(2,9,0) || !wxOSX_USE_COCOA
     43 
     44 static inline double DegToRad(double deg)
     45 {
     46     return (deg * M_PI) / 180.0;
     47 }
     48 
     49 static const NSAffineTransformStruct kSlantNSTransformStruct = { 1, 0, tan(DegToRad(11)), 1, 0, 0  };
     50 
     51 NSFont* OSXCreateNSFont(const wxNativeFontInfo* info)
     52 {
     53     NSFont* nsFont;
     54     int weight = 5;
     55     NSFontTraitMask traits = 0;
     56     if (info->GetWeight() == wxFONTWEIGHT_BOLD)
     57     {
     58         traits |= NSBoldFontMask;
     59         weight = 9;
     60     }
     61     else if (info->GetWeight() == wxFONTWEIGHT_LIGHT)
     62         weight = 3;
     63 
     64     if (info->GetStyle() == wxFONTSTYLE_ITALIC || info->GetStyle() == wxFONTSTYLE_SLANT)
     65         traits |= NSItalicFontMask;
     66 
     67     nsFont = [[NSFontManager sharedFontManager] fontWithFamily:(NSString*)(CFStringRef)wxMacCFStringHolder(info->GetFaceName())
     68         traits:traits weight:weight size:info->GetPointSize()];
     69 
     70     if ( nsFont == nil )
     71     {
     72         NSFontTraitMask remainingTraits = traits;
     73         nsFont = [[NSFontManager sharedFontManager] fontWithFamily:(NSString*)(CFStringRef)wxMacCFStringHolder(info->GetFaceName())
     74                                                             traits:0 weight:5 size:info->GetPointSize()];
     75         if ( nsFont == nil )
     76         {
     77             if ( info->GetWeight() == wxFONTWEIGHT_BOLD )
     78             {
     79                 nsFont = [NSFont boldSystemFontOfSize:info->GetPointSize()];
     80                 remainingTraits &= ~NSBoldFontMask;
     81             }
     82             else
     83                 nsFont = [NSFont systemFontOfSize:info->GetPointSize()];
     84         }
     85 
     86         // fallback - if in doubt, let go of the bold attribute
     87         if ( nsFont && (remainingTraits & NSItalicFontMask) )
     88         {
     89             NSFont* nsFontWithTraits = nil;
     90             if ( remainingTraits & NSBoldFontMask)
     91             {
     92                 nsFontWithTraits = [[NSFontManager sharedFontManager] convertFont:nsFont toHaveTrait:NSBoldFontMask];
     93                 if ( nsFontWithTraits == nil )
     94                 {
     95                     nsFontWithTraits = [[NSFontManager sharedFontManager] convertFont:nsFont toHaveTrait:NSItalicFontMask];
     96                     if ( nsFontWithTraits != nil )
     97                         remainingTraits &= ~NSItalicFontMask;
     98                 }
     99                 else
    100                 {
    101                     remainingTraits &= ~NSBoldFontMask;
    102                 }
    103             }
    104             if ( remainingTraits & NSItalicFontMask)
    105             {
    106                 if ( nsFontWithTraits == nil )
    107                     nsFontWithTraits = nsFont;
    108 
    109                 NSAffineTransform* transform = [NSAffineTransform transform];
    110                 [transform setTransformStruct:kSlantNSTransformStruct];
    111                 [transform scaleBy:info->GetPointSize()];
    112                 NSFontDescriptor* italicDesc = [[nsFontWithTraits fontDescriptor] fontDescriptorWithMatrix:transform];
    113                 if ( italicDesc != nil )
    114                 {
    115                     NSFont* f = [NSFont fontWithDescriptor:italicDesc size:(CGFloat)(info->GetPointSize())];
    116                     if ( f != nil )
    117                         nsFontWithTraits = f;
    118                 }
    119             }
    120             if ( nsFontWithTraits != nil )
    121                 nsFont = nsFontWithTraits;
    122         }
    123     }
    124 
    125     wxASSERT_MSG(nsFont != nil,wxT("Couldn't create nsFont")) ;
    126     wxMacCocoaRetain(nsFont);
    127     return nsFont;
    128 }
    129 
    130 #endif
    131 
    132 namespace WebCore {
    133 
    134 void FontPlatformData::cacheNSFont()
    135 {
    136     if (m_nsFont)
    137         return;
    138 
    139 #if wxCHECK_VERSION(2,9,1) && wxOSX_USE_COCOA
    140     if (m_font && m_font->font())
    141         m_nsFont = (NSFont*)m_font->font()->OSXGetNSFont();
    142 #else
    143     m_nsFont = OSXCreateNSFont(m_font->font()->GetNativeFontInfo());
    144 #endif
    145 }
    146 
    147 }
    148