/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/

#include "aqua/salgdi.h"
#include "sallayout.hxx"

#include <ApplicationServices/ApplicationServices.h>

// =======================================================================

class CTTextStyle
:	public ImplMacTextStyle
{
public:
	explicit	CTTextStyle( const ImplFontSelectData& );
	virtual		~CTTextStyle( void );

	virtual SalLayout* GetTextLayout( void ) const;

	virtual void	GetFontMetric( float fDPIY, ImplFontMetricData& ) const;
	virtual bool	GetGlyphBoundRect( sal_GlyphId, Rectangle& ) const;
	virtual bool	GetGlyphOutline( sal_GlyphId, basegfx::B2DPolyPolygon& ) const;

	virtual void	SetTextColor( const RGBAColor& ) {}

private:
	/// CoreText text style object
	CFMutableDictionaryRef	mpStyleDict;

	friend class CTLayout;
	CFMutableDictionaryRef	GetStyleDict( void ) const { return mpStyleDict; }
};

// =======================================================================

#ifndef DISABLE_CORETEXT_DYNLOAD
// the CoreText symbols may need to be loaded dynamically
// since platform targets like OSX 10.4 do not provide all required symbols
// TODO: avoid the dlsym stuff if the target platform is >= OSX10.5

class DynCoreTextSyms
{
public:
	// dynamic symbols to access the CoreText API
	uint32_t	(*GetCoreTextVersion)(void);
	CTFontCollectionRef (*FontCollectionCreateFromAvailableFonts)(CFDictionaryRef);
	CFArrayRef	(*FontCollectionCreateMatchingFontDescriptors)(CTFontCollectionRef);
	CGPathRef	(*FontCreatePathForGlyph)(CTFontRef,CGGlyph,const CGAffineTransform*);
	CGRect          (*FontGetBoundingRectsForGlyphs)(CTFontRef,CTFontOrientation,CGGlyph*,CGRect*,CFIndex);
	CTLineRef	(*LineCreateJustifiedLine)(CTLineRef,CGFloat,double);
	double		(*LineGetTrailingWhitespaceWidth)(CTLineRef);
	CGFloat		(*LineGetOffsetForStringIndex)(CTLineRef,CFIndex,CGFloat*);
	CFArrayRef	(*LineGetGlyphRuns)(CTLineRef);
	CFIndex		(*RunGetGlyphCount)(CTRunRef);
	const CGGlyph*	(*RunGetGlyphsPtr)(CTRunRef);
	const CGPoint*	(*RunGetPositionsPtr)(CTRunRef);
	const CGSize*	(*RunGetAdvancesPtr)(CTRunRef);
	const CFIndex * (*RunGetStringIndicesPtr)(CTRunRef);

	// singleton helpers
	static const DynCoreTextSyms& get( void );
	bool		IsActive( void ) const { return mbIsActive; }

private:
	explicit	DynCoreTextSyms( void );
	bool		mbIsActive;
};

#endif // DISABLE_CORETEXT_DYNLOAD

// =======================================================================