xref: /trunk/main/vcl/aqua/source/gdi/ctfonts.hxx (revision e89c3263)
1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 #include "aqua/salgdi.h"
23 #include "sallayout.hxx"
24 
25 #include <ApplicationServices/ApplicationServices.h>
26 
27 // =======================================================================
28 
29 class CTTextStyle
30 :	public ImplMacTextStyle
31 {
32 public:
33 	explicit	CTTextStyle( const ImplFontSelectData& );
34 	virtual		~CTTextStyle( void );
35 
36 	virtual SalLayout* GetTextLayout( void ) const;
37 
38 	virtual void	GetFontMetric( float fDPIY, ImplFontMetricData& ) const;
39 	virtual bool	GetGlyphBoundRect( sal_GlyphId, Rectangle& ) const;
40 	virtual bool	GetGlyphOutline( sal_GlyphId, basegfx::B2DPolyPolygon& ) const;
41 
SetTextColor(const RGBAColor &)42 	virtual void	SetTextColor( const RGBAColor& ) {}
43 
44 private:
45 	/// CoreText text style object
46 	CFMutableDictionaryRef	mpStyleDict;
47 
48 	friend class CTLayout;
GetStyleDict(void) const49 	CFMutableDictionaryRef	GetStyleDict( void ) const { return mpStyleDict; }
50 };
51 
52 // =======================================================================
53 
54 #ifndef DISABLE_CORETEXT_DYNLOAD
55 // the CoreText symbols may need to be loaded dynamically
56 // since platform targets like OSX 10.4 do not provide all required symbols
57 // TODO: avoid the dlsym stuff if the target platform is >= OSX10.5
58 
59 class DynCoreTextSyms
60 {
61 public:
62 	// dynamic symbols to access the CoreText API
63 	uint32_t	(*GetCoreTextVersion)(void);
64 	CTFontCollectionRef (*FontCollectionCreateFromAvailableFonts)(CFDictionaryRef);
65 	CFArrayRef	(*FontCollectionCreateMatchingFontDescriptors)(CTFontCollectionRef);
66 	CGPathRef	(*FontCreatePathForGlyph)(CTFontRef,CGGlyph,const CGAffineTransform*);
67 	CGRect          (*FontGetBoundingRectsForGlyphs)(CTFontRef,CTFontOrientation,CGGlyph*,CGRect*,CFIndex);
68 	CTLineRef	(*LineCreateJustifiedLine)(CTLineRef,CGFloat,double);
69 	double		(*LineGetTrailingWhitespaceWidth)(CTLineRef);
70 	CGFloat		(*LineGetOffsetForStringIndex)(CTLineRef,CFIndex,CGFloat*);
71 	CFArrayRef	(*LineGetGlyphRuns)(CTLineRef);
72 	CFIndex		(*RunGetGlyphCount)(CTRunRef);
73 	const CGGlyph*	(*RunGetGlyphsPtr)(CTRunRef);
74 	const CGPoint*	(*RunGetPositionsPtr)(CTRunRef);
75 	const CGSize*	(*RunGetAdvancesPtr)(CTRunRef);
76 	const CFIndex * (*RunGetStringIndicesPtr)(CTRunRef);
77 
78 	// singleton helpers
79 	static const DynCoreTextSyms& get( void );
IsActive(void) const80 	bool		IsActive( void ) const { return mbIsActive; }
81 
82 private:
83 	explicit	DynCoreTextSyms( void );
84 	bool		mbIsActive;
85 };
86 
87 #endif // DISABLE_CORETEXT_DYNLOAD
88 
89 // =======================================================================
90 
91