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Merge in text-system-branch.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@15720 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
alexm
parent
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652bc4ad08
4 changed files with 0 additions and 552 deletions
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/*
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NSTypesetter.h
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The text layout class(es)
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Copyright (C) 1999 Free Software Foundation, Inc.
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Author: Jonathan Gapen <jagapen@home.com>
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Date: May 2000
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This file is part of the GNUstep GUI Library.
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||||||
This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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||||||
License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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||||||
|
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||||||
This library is distributed in the hope that it will be useful,
|
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||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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||||||
|
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||||||
You should have received a copy of the GNU Library General Public
|
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||||||
License along with this library; see the file COPYING.LIB.
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||||||
If not, write to the Free Software Foundation,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef GNUstep_H_NSTypesetter
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#define GNUstep_H_NSTypesetter
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#include <AppKit/NSFont.h>
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#include <AppKit/NSLayoutManager.h>
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#include <Foundation/NSGeometry.h>
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#include <Foundation/NSRange.h>
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@class NSParagraphStyle, NSTextContainer, NSTextStorage;
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// FIXME - when the use of this type becomes clear
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typedef void NSTypesetterGlyphInfo;
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typedef enum
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{
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NSLayoutNotDone = 1,
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NSLayoutDone,
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NSLayoutCantFit,
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NSLayoutOutOfGlyphs
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} NSLayoutStatus;
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@interface NSTypesetter : NSObject
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{
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}
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+ (NSSize) printingAdjustmentsInLayoutManager: (NSLayoutManager *)layoutManager
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forNominallySpacedGlyphRange: (NSRange)glyphRange
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packedGlyphs: (const unsigned char *)glyphs
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count: (unsigned)packedGlyphCount;
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+ (id) sharedSystemTypesetter;
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- (float) baselineOffsetInLayoutManager: (NSLayoutManager *)layoutManager
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glyphIndex: (unsigned)glyphIndex;
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- (void) layoutGlyphsInLayoutManager: (NSLayoutManager *)layoutManager
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startingAtGlyphIndex: (unsigned)glyphIndex
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maxNumberOfLineFragments: (unsigned)maxFragments
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nextGlyphIndex: (unsigned *)nextGlyph;
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@end
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//
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// Basic horizontal (l-to-r or r-to-l) typesetter
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//
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@interface NSSimpleHorizontalTypesetter : NSTypesetter
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{
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NSTypesetterGlyphInfo *_glyphInfo;
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unsigned _capacityGlyphInfo;
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unsigned _sizeGlyphInfo;
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NSLayoutManager *_currentLayoutManager;
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NSTextStorage *_currentTextStorage;
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NSTextContainer *_currentContainer;
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NSParagraphStyle *_currentParagraphStyle;
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unsigned _firstIndexOfCurrentLineFragment;
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unsigned _currentGlyphIndex;
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}
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//
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// Get the shared horizontal typesetter
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//
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+ (id) sharedInstance;
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//
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// Get information about a typesetter
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//
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- (NSTypesetterGlyphInfo *) baseOfTypesetterGlyphInfo;
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- (unsigned) capacityOfTypesetterGlyphInfo;
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- (NSTextContainer *) currentContainer;
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- (NSLayoutManager *) currentLayoutManager;
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- (NSParagraphStyle *) currentParagraphStyle;
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- (NSTextStorage *) currentTextStorage;
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- (unsigned) firstIndexOfCurrentLineFragment;
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- (unsigned) sizeOfTypesetterGlyphInfo;
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//
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// Glyph layout
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//
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- (void) breakLineAtIndex: (unsigned)location;
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- (void) fullJustifyLineAtGlyphIndex: (unsigned)glyphIndex;
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- (unsigned) glyphIndexToBreakLineByHyphenatingWordAtIndex: (unsigned)charIndex;
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- (unsigned) glyphIndexToBreakLineByWrappingAtIndex: (unsigned)charIndex;
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- (void) insertGlyph: (NSGlyph)glyph
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atGlyphIndex: (unsigned) glyphIndex
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characterIndex: (unsigned) charIndex;
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- (NSLayoutStatus) layoutControlGlyphForLineFragment: (NSRect)lineFrag;
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- (NSLayoutStatus) layoutGlyphsInHorizontalLineFragment: (NSRect *)fragRect
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baseline: (float *)baseline;
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- (void) layoutGlyphsInLayoutManager: (NSLayoutManager *)layoutManager
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startingAtGlyphIndex: (unsigned)startGlyphIndex
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maxNumberOfLineFragments: (unsigned)maxNumLines
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nextGlyphIndex: (unsigned *)nextGlyph;
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- (void) layoutTab;
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- (void) typesetterLaidOneGlyph: (NSTypesetterGlyphInfo *)glyphInfo;
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- (void) updateCurGlyphOffset;
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- (void) willSetLineFragmentRect: (NSRect *)aRect
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forGlyphRange: (NSRange)aRange
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usedRect: (NSRect *)usedRect;
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//
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// Caching
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//
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- (void) clearAttributesCache;
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- (void) clearGlyphCache;
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- (void) fillAttributesCache;
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- (unsigned) growGlyphCaches: (unsigned)desiredCapacity
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fillGlyphInfo: (BOOL)flag;
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@end
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#endif /* GNUstep_H_NSTypesetter */
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/*
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GSSimpleLayoutManager.h
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First GNUstep layout manager, extracted from NSText
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Copyright (C) 2000 Free Software Foundation, Inc.
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Author: Fred Kiefer <FredKiefer@gmx.de>
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Date: September 2000
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Extracted from NSText, reorganised to specification
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This file is part of the GNUstep GUI Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
|
|
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License as published by the Free Software Foundation; either
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||||||
version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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|
||||||
Library General Public License for more details.
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|
||||||
|
|
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You should have received a copy of the GNU Library General Public
|
|
||||||
License along with this library; see the file COPYING.LIB.
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|
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If not, write to the Free Software Foundation,
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|
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59 Temple Place - Suite 330, Boston, MA 02111 - 1307, USA.
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*/
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#ifndef __GSSimpleLayoutManager_h_GNUSTEP_GUI_INCLUDE
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#define __GSSimpleLayoutManager_h_GNUSTEP_GUI_INCLUDE
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#include <Foundation/NSGeometry.h>
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#include <Foundation/NSArray.h>
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#include <AppKit/NSTextView.h>
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#include <AppKit/NSLayoutManager.h>
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@interface GSSimpleLayoutManager: NSLayoutManager
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{
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// contains private _GNULineLayoutInfo objects
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NSMutableArray *_lineLayoutInfo;
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NSRect _rects[4];
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}
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@end
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#endif /*__NSCharacterSet_h_GNUSTEP_BASE_INCLUDE*/
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/*
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NSSimpleHorizontalTypesetter.m
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The text layout class for horizontal scripts
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Copyright (C) 2000 Free Software Foundation, Inc.
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Author: Jonathan Gapen <jagapen@home.com>
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Date: May 2000
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This file is part of the GNUstep GUI Library.
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This library is free software; you can redistribute it and/or
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||||||
modify it under the terms of the GNU Library General Public
|
|
||||||
License as published by the Free Software Foundation; either
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|
||||||
version 2 of the License, or (at your option) any later version.
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||||||
|
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||||||
This library is distributed in the hope that it will be useful,
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|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Library General Public License for more details.
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|
||||||
|
|
||||||
You should have received a copy of the GNU Library General Public
|
|
||||||
License along with this library; see the file COPYING.LIB.
|
|
||||||
If not, write to the Free Software Foundation,
|
|
||||||
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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|
||||||
*/
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#include <AppKit/NSLayoutManager.h>
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#include <AppKit/NSTypesetter.h>
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#include <Foundation/NSLock.h>
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@implementation NSSimpleHorizontalTypesetter
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static NSSimpleHorizontalTypesetter *_gs_horiz_typesetter = nil;
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static NSLock *_gs_horiz_typesetter_lock;
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+ (void) initialize
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{
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if (self == [NSSimpleHorizontalTypesetter class])
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{
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[self setVersion: 1];
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_gs_horiz_typesetter_lock = [NSLock new];
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}
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}
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+ (id) sharedInstance
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{
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if (_gs_horiz_typesetter == nil)
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{
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[_gs_horiz_typesetter_lock lock];
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if (_gs_horiz_typesetter == nil)
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_gs_horiz_typesetter = RETAIN([NSSimpleHorizontalTypesetter new]);
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[_gs_horiz_typesetter_lock unlock];
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}
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return _gs_horiz_typesetter;
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}
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//
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// Get information about the typesetter
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//
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- (NSTypesetterGlyphInfo *) baseOfTypesetterGlyphInfo
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{
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return _glyphInfo;
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}
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- (unsigned) capacityOfTypesetterGlyphInfo
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{
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return _capacityGlyphInfo;
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}
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- (NSTextContainer *) currentContainer
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{
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return _currentContainer;
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}
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- (NSLayoutManager *) currentLayoutManager
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{
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return _currentLayoutManager;
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}
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- (NSParagraphStyle *) currentParagraphStyle
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{
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return _currentParagraphStyle;
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}
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- (NSTextStorage *) currentTextStorage
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|
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{
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return _currentTextStorage;
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}
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- (unsigned) firstIndexOfCurrentLineFragment
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|
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{
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return _firstIndexOfCurrentLineFragment;
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}
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- (unsigned) sizeOfTypesetterGlyphInfo
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|
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{
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return _sizeGlyphInfo;
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}
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//
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// Glyph layout
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//
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||||||
- (void) breakLineAtIndex: (unsigned)location
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|
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{
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|
||||||
// Find an index to break the line, if inside a word try to hyphenate and
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// add a hyphen, if not possibe wrap.
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// Do justification acording to the paragraph style.
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|
||||||
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|
||||||
return;
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|
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}
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|
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- (void) fullJustifyLineAtGlyphIndex: (unsigned)glyphIndex
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|
||||||
{
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|
||||||
return;
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|
||||||
}
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|
||||||
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|
||||||
- (unsigned) glyphIndexToBreakLineByHyphenatingWordAtIndex: (unsigned)charIndex
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|
||||||
{
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return 0;
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|
||||||
}
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|
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- (unsigned) glyphIndexToBreakLineByWrappingAtIndex: (unsigned)charIndex
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|
||||||
{
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return 0;
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|
||||||
}
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- (void) insertGlyph: (NSGlyph)glyph
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atGlyphIndex: (unsigned)glyphIndex
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characterIndex: (unsigned)charIndex
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|
||||||
{
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|
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return;
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|
||||||
}
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||||||
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|
||||||
- (NSLayoutStatus) layoutControlGlyphForLineFragment: (NSRect)fragRect
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|
||||||
{
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|
||||||
return NSLayoutOutOfGlyphs;
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|
||||||
}
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|
||||||
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|
||||||
- (NSLayoutStatus) layoutGlyphsInHorizontalLineFragment: (NSRect *)fragRect
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|
||||||
baseline: (float *)baseline
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|
||||||
{
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|
||||||
*fragRect = NSZeroRect;
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|
||||||
*baseline = 0.0;
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|
||||||
|
|
||||||
return NSLayoutOutOfGlyphs;
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|
||||||
}
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|
||||||
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|
||||||
/*
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|
||||||
I think that this is the main interface of the typesetter to the outside
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||||||
world. So this must be protected by a lock!!
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||||||
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|
||||||
|
|
||||||
*/
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|
||||||
- (void) layoutGlyphsInLayoutManager: (NSLayoutManager *)layoutManager
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|
||||||
startingAtGlyphIndex: (unsigned)glyphIndex
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|
||||||
maxNumberOfLineFragments: (unsigned)maxNumLines
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|
||||||
nextGlyphIndex: (unsigned *)nextGlyph
|
|
||||||
{
|
|
||||||
unsigned charIndex;
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|
||||||
unsigned numLines = 0;
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|
||||||
NSLayoutStatus status;
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|
||||||
|
|
||||||
[_gs_horiz_typesetter_lock lock];
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|
||||||
// Set up all the internal state variables
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|
||||||
// Don't assign here
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|
||||||
_currentLayoutManager = layoutManager;
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|
||||||
_currentTextStorage = [layoutManager textStorage];
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|
||||||
// This probably is wrong as it does layouting itself
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|
||||||
_currentContainer = [layoutManager textContainerForGlyphAtIndex: glyphIndex
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|
||||||
effectiveRange: NULL];
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|
||||||
charIndex = [layoutManager characterIndexForGlyphAtIndex: glyphIndex];
|
|
||||||
_currentParagraphStyle = [_currentTextStorage
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|
||||||
attribute: NSParagraphStyleAttributeName
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|
||||||
atIndex: charIndex
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|
||||||
effectiveRange: NULL];
|
|
||||||
_firstIndexOfCurrentLineFragment = glyphIndex;
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|
||||||
|
|
||||||
|
|
||||||
do {
|
|
||||||
float baseline = 0;
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|
||||||
NSRect lineFragmentRect;
|
|
||||||
NSRect usedRect;
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|
||||||
|
|
||||||
// Get the current lineFragmentRect from the layout manager / container
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|
||||||
usedRect = lineFragmentRect;
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|
||||||
|
|
||||||
// Build up a line
|
|
||||||
status = [self layoutGlyphsInHorizontalLineFragment: &usedRect
|
|
||||||
baseline: &baseline];
|
|
||||||
if (status == NSLayoutOutOfGlyphs)
|
|
||||||
{
|
|
||||||
[self growGlyphCaches: [self sizeOfTypesetterGlyphInfo] + 100
|
|
||||||
fillGlyphInfo: YES];
|
|
||||||
continue;
|
|
||||||
}
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|
||||||
|
|
||||||
[self willSetLineFragmentRect: lineFragmentRect
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|
||||||
forGlyphRange: NSMakeRange(_firstIndexOfCurrentLineFragment,
|
|
||||||
_currentGlyphIndex - _firstIndexOfCurrentLineFragment)
|
|
||||||
usedRect: usedRect];
|
|
||||||
[self breakLineAtIndex: _currentGlyphIndex];
|
|
||||||
|
|
||||||
_firstIndexOfCurrentLineFragment = _currentGlyphIndex + 1;
|
|
||||||
numLines++;
|
|
||||||
} while((numLines <= maxNumLines) && (status));
|
|
||||||
|
|
||||||
if (nextGlyph != NULL)
|
|
||||||
*nextGlyph = _firstIndexOfCurrentLineFragment;
|
|
||||||
|
|
||||||
[_gs_horiz_typesetter_lock unlock];
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
This is probably the second method to be called from the outside
|
|
||||||
*/
|
|
||||||
- (float) baselineOffsetInLayoutManager: (NSLayoutManager *)layoutManager
|
|
||||||
glyphIndex: (unsigned)glyphIndex
|
|
||||||
{
|
|
||||||
return 0.0;
|
|
||||||
}
|
|
||||||
|
|
||||||
- (void) layoutTab
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
- (void) typesetterLaidOneGlyph: (NSTypesetterGlyphInfo *)glyphInfo
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
- (void) updateCurGlyphOffset
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
- (void) willSetLineFragmentRect: (NSRect *)aRect
|
|
||||||
forGlyphRange: (NSRange)aRange
|
|
||||||
usedRect: (NSRect *)usedRect
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// Caching
|
|
||||||
//
|
|
||||||
|
|
||||||
- (void) clearAttributesCache
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
- (void) clearGlyphCache
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
- (void) fillAttributesCache
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
- (unsigned) growGlyphCaches: (unsigned)newCapacity
|
|
||||||
fillGlyphInfo: (BOOL)flag
|
|
||||||
{
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
@end
|
|
||||||
|
|
||||||
|
|
@ -1,86 +0,0 @@
|
||||||
/*
|
|
||||||
NSTypesetter.m
|
|
||||||
|
|
||||||
The text layout class
|
|
||||||
|
|
||||||
Copyright (C) 2000 Free Software Foundation, Inc.
|
|
||||||
|
|
||||||
Author: Jonathan Gapen <jagapen@home.com>
|
|
||||||
Date: May 2000
|
|
||||||
|
|
||||||
This file is part of the GNUstep GUI Library.
|
|
||||||
|
|
||||||
This library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Library General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
This library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Library General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Library General Public
|
|
||||||
License along with this library; see the file COPYING.LIB.
|
|
||||||
If not, write to the Free Software Foundation,
|
|
||||||
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <AppKit/NSLayoutManager.h>
|
|
||||||
#include <AppKit/NSTypesetter.h>
|
|
||||||
#include <Foundation/NSLock.h>
|
|
||||||
|
|
||||||
|
|
||||||
@implementation NSTypesetter
|
|
||||||
|
|
||||||
static NSTypesetter *_gs_system_typesetter = nil;
|
|
||||||
static NSLock *_gs_typesetter_lock;
|
|
||||||
|
|
||||||
+ (void) initialize
|
|
||||||
{
|
|
||||||
if (self == [NSTypesetter class])
|
|
||||||
{
|
|
||||||
[self setVersion: 1];
|
|
||||||
_gs_typesetter_lock = [NSLock new];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
+ (id) sharedSystemTypesetter
|
|
||||||
{
|
|
||||||
if (_gs_system_typesetter == nil)
|
|
||||||
{
|
|
||||||
[_gs_typesetter_lock lock];
|
|
||||||
|
|
||||||
if (_gs_system_typesetter == nil)
|
|
||||||
_gs_system_typesetter = [NSSimpleHorizontalTypesetter sharedInstance];
|
|
||||||
|
|
||||||
[_gs_typesetter_lock unlock];
|
|
||||||
}
|
|
||||||
|
|
||||||
return _gs_system_typesetter;
|
|
||||||
}
|
|
||||||
|
|
||||||
+ (NSSize) printingAdjustmentsInLayoutManager: (NSLayoutManager *)layoutManager
|
|
||||||
forNominallySpacedGlyphRange: (NSRange)glyphRange
|
|
||||||
packedGlyphs: (const unsigned char *)glyphs
|
|
||||||
count: (unsigned)packedGlyphCount
|
|
||||||
{
|
|
||||||
return NSMakeSize(0, 0);
|
|
||||||
}
|
|
||||||
|
|
||||||
- (float) baselineOffsetInLayoutManager: (NSLayoutManager *)layoutManager
|
|
||||||
glyphIndex: (unsigned)glyphIndex
|
|
||||||
{
|
|
||||||
return 0.0;
|
|
||||||
}
|
|
||||||
|
|
||||||
- (void) layoutGlyphsInLayoutManager: (NSLayoutManager *)layoutManager
|
|
||||||
startingAtGlyphIndex: (unsigned)glyphIndex
|
|
||||||
maxNumberOfLineFragments: (unsigned)maxFragments
|
|
||||||
nextGlyphIndex: (unsigned *)nextGlyph
|
|
||||||
{
|
|
||||||
if (nextGlyph != NULL)
|
|
||||||
*nextGlyph = glyphIndex;
|
|
||||||
}
|
|
||||||
|
|
||||||
@end
|
|
||||||
Loading…
Reference in a new issue