/**
 * Copyright: Copyright (c) 2009 Jacob Carlborg.
 * Authors: Jacob Carlborg
 * Version: Initial created: Sep 24, 2009 
 * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0)
 */
module dstep.appkit.NSSimpleHorizontalTypesetter;

import dstep.appkit.NSFont;
import dstep.appkit.NSLayoutManager;
import dstep.appkit.NSParagraphStyle;
import dstep.appkit.NSTextContainer;
import dstep.appkit.NSTextStorage;
import dstep.appkit.NSTypesetter;
import dstep.internal.Version;
import dstep.foundation.NSGeometry;
import dstep.foundation.NSObjCRuntime;
import dstep.foundation.NSRange;
import dstep.objc.bridge.Bridge;
import dstep.objc.objc;

version (D_LP64)
{
	pragma(msg, "warning: NSSimpleHorizontalTypesetter is deprecated starting from Mac OS X 10.4 Tiger.");
	pragma(msg, "warning: Developers are recommended to adopt NSATSTypesetter, the default concrete subclass from Mac OS X 10.3 Panther.");
}

else:

typedef int NSLayoutStatus;
	
enum 
{
	NSLayoutNotDone = 0,
	NSLayoutDone,
	NSLayoutCantFit,
	NSLayoutOutOfGlyphs
}

typedef int NSGlyphLayoutMode;

enum
{
	NSGlyphLayoutAtAPoint = 0,
	NSGlyphLayoutAgainstAPoint,
	NSGlyphLayoutWithPrevious
}

typedef int NSLayoutDirection;

enum
{
    NSLayoutLeftToRight = 0,
    NSLayoutRightToLeft
}

const NSBaselineNotSet = -1.0;
const NumGlyphsToGetEachTime = 20;

alias extern (C) NSPoint function (id obj, SEL sel, NSGlyph cur, NSGlyph prev, bool isNominal) _NSPositionOfGlyphMethod;

struct NSTypesetterGlyphInfo
{
	NSPoint curLocation;
	float extent;
	float belowBaseline;
	float aboveBaseline;
	uint glyphCharacterIndex;
	id font;
	NSSize attachmentSize;
	
	struct
	{
		uint defaultPositioning; //:1
		uint dontShow; //:1
		uint isAttachment; //:1
	}
}

const TNSTypesetterSubclassExtensions = `

	void typesetterLaidOneGlyph (NSTypesetterGlyphInfo* gl)
	{
		return invokeObjcSelf!(void, "typesetterLaidOneGlyph:", NSTypesetterGlyphInfo*)(gl);
	}
	
	void willSetLineFragmentRect (NSRect* aRect, NSRange aRange, NSRect* bRect)
	{
		return invokeObjcSelf!(void, "willSetLineFragmentRect:forGlyphRange:usedRect:", NSRect*, NSRange, NSRect*)(aRect, aRange, bRect);
	}
`;

class NSSimpleHorizontalTypesetter : NSTypesetter
{
	mixin (ObjcWrap);
	
	static NSSimpleHorizontalTypesetter sharedInstance ()
	{
		return invokeObjcSelfClass!(NSSimpleHorizontalTypesetter, "sharedInstance");
	}
	
	NSLayoutManager currentLayoutManager ()
	{
		return invokeObjcSelf!(NSLayoutManager, "currentLayoutManager");
	}
	
	NSTextContainer currentContainer ()
	{
		return invokeObjcSelf!(NSTextContainer, "currentContainer");
	}
	
	NSParagraphStyle currentParagraphStyle ()
	{
		return invokeObjcSelf!(NSParagraphStyle, "currentParagraphStyle");
	}
	
	NSTextStorage currentTextStorage ()
	{
		return invokeObjcSelf!(NSTextStorage, "currentTextStorage");
	}
	
	NSTypesetterGlyphInfo baseOfTypesetterGlyphInfo ()
	{
		return invokeObjcSelf!(NSTypesetterGlyphInfo, "baseOfTypesetterGlyphInfo");
	}
	
	NSUInteger sizeOfTypesetterGlyphInfo ()
	{
		return invokeObjcSelf!(NSUInteger, "sizeOfTypesetterGlyphInfo");
	}
	
	NSUInteger capacityOfTypesetterGlyphInfo ()
	{
		return invokeObjcSelf!(NSUInteger, "capacityOfTypesetterGlyphInfo");
	}
	
	NSUInteger firstGlyphIndexOfCurrentLineFragment ()
	{
		return invokeObjcSelf!(NSUInteger, "firstGlyphIndexOfCurrentLineFragment");
	}
	
	void layoutGlyphsInLayoutManager (NSLayoutManager layoutManager, NSUInteger startGlyphIndex, NSUInteger maxNumLines, out NSUInteger nextGlyphIndex)
	{
		return invokeObjcSelf!(void, "layoutGlyphsInLayoutManager:startingAtGlyphIndex:maxNumberOfLineFragments:nextGlyphIndex:", NSLayoutManager, NSUInteger, NSUInteger, NSUInteger*)(layoutManager, startGlyphIndex, maxNumLines, &nextGlyphIndex);
	}
	
	NSLayoutStatus layoutGlyphsInHorizontalLineFragment (NSRect* lineFragmentRect, float* baseline)
	{
		return invokeObjcSelf!(NSLayoutStatus, "layoutGlyphsInHorizontalLineFragment:baseline:", NSRect*, float*)(lineFragmentRect, baseline);
	}
	
	void clearGlyphCache ()
	{
		return invokeObjcSelf!(void, "clearGlyphCache");
	}
	
	void fillAttributesCache ()
	{
		return invokeObjcSelf!(void, "fillAttributesCache");
	}
	
	void clearAttributesCache ()
	{
		return invokeObjcSelf!(void, "clearAttributesCache");
	}
	
	NSUInteger growGlyphCaches (NSUInteger desiredCapacity, bool fillGlyphInfo)
	{
		return invokeObjcSelf!(NSUInteger, "growGlyphCaches:fillGlyphInfo:", NSUInteger, bool)(desiredCapacity, fillGlyphInfo);
	}
	
	void updateCurGlyphOffset ()
	{
		return invokeObjcSelf!(void, "updateCurGlyphOffset");
	}
	
	void insertGlyph (NSGlyph glyph, NSUInteger glyphIndex, NSUInteger charIndex)
	{
		return invokeObjcSelf!(void, "insertGlyph:atGlyphIndex:characterIndex:", NSGlyph, NSUInteger, NSUInteger)(glyph, glyphIndex, charIndex);
	}
	
	NSLayoutStatus layoutControlGlyphForLineFragment (NSRect lineFrag)
	{
		return invokeObjcSelf!(NSLayoutStatus, "layoutControlGlyphForLineFragment:", NSRect)(lineFrag);
	}
	
	void layoutTab ()
	{
		return invokeObjcSelf!(void, "layoutTab");
	}
	
	void breakLineAtIndex (NSUInteger location)
	{
		return invokeObjcSelf!(void, "breakLineAtIndex:", NSUInteger)(location);
	}
	
	NSUInteger glyphIndexToBreakLineByHyphenatingWordAtIndex (NSUInteger charIndex)
	{
		return invokeObjcSelf!(NSUInteger, "glyphIndexToBreakLineByHyphenatingWordAtIndex:", NSUInteger)(charIndex);
	}
	
	NSUInteger glyphIndexToBreakLineByWordWrappingAtIndex (NSUInteger charIndex)
	{
		return invokeObjcSelf!(NSUInteger, "glyphIndexToBreakLineByWordWrappingAtIndex:", NSUInteger)(charIndex);
	}
	
	void fullJustifyLineAtGlyphIndex (NSUInteger glyphIndexForLineBreak)
	{
		return invokeObjcSelf!(void, "fullJustifyLineAtGlyphIndex:", NSUInteger)(glyphIndexForLineBreak);
	}
	
	// NSTypesetterSubclassExtensions
	void typesetterLaidOneGlyph (NSTypesetterGlyphInfo* gl)
	{
		return invokeObjcSelf!(void, "typesetterLaidOneGlyph:", NSTypesetterGlyphInfo*)(gl);
	}
	
	void willSetLineFragmentRect (NSRect* aRect, NSRange aRange, NSRect* bRect)
	{
		return invokeObjcSelf!(void, "willSetLineFragmentRect:forGlyphRange:usedRect:", NSRect*, NSRange, NSRect*)(aRect, aRange, bRect);
	}
}