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CPTextView commit
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daboe01
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/*
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* CPTextStorage.j
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* AppKit
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*
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* Created by Emmanuel Maillard on 27/02/2010.
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* Copyright Emmanuel Maillard 2010.
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*
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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//@import <Foundation/CPAttributedString.j>
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@import "CPLayoutManager.j"
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CPTextStorageEditedAttributes = 1;
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CPTextStorageEditedCharacters = 2;
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CPTextStorageWillProcessEditingNotification = @"CPTextStorageWillProcessEditingNotification";
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CPTextStorageDidProcessEditingNotification = @"CPTextStorageDidProcessEditingNotification";
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/*
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FIXME: move these to CPAttributed string
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Make use of attributed keys in AppKit
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*/
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CPFontAttributeName = @"CPFontAttributeName";
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CPForegroundColorAttributeName = @"CPForegroundColorAttributeName";
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CPBackgroundColorAttributeName = @"CPBackgroundColorAttributeName";
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CPShadowAttributeName = @"CPShadowAttributeName";
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CPUnderlineStyleAttributeName = @"CPUnderlineStyleAttributeName";
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CPSuperscriptAttributeName = @"CPSuperscriptAttributeName";
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CPBaselineOffsetAttributeName = @"CPBaselineOffsetAttributeName";
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CPAttachmentAttributeName = @"CPAttachmentAttributeName";
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CPLigatureAttributeName = @"CPLigatureAttributeName";
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CPKernAttributeName = @"CPKernAttributeName";
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/*!
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@ingroup appkit
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@class CPTextStorage
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*/
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@implementation CPTextStorage : CPAttributedString
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{
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CPMutableArray _layoutManagers;
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id _delegate;
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int _changeInLength;
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unsigned _editedMask;
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CPRange _editedRange;
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int _editCount; // {begin,end}Editing counter
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CPFont _font;
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CPColor _foregroundColor;
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}
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- (id)initWithString:(CPString)aString attributes:(CPDictionary)attributes
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{
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self = [super initWithString:aString attributes:attributes];
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if (self)
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{
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_layoutManagers = [[CPMutableArray alloc] init];
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_editedRange = CPMakeRange(CPNotFound, 0);
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_changeInLength = 0;
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_editedMask = 0;
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}
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return self;
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}
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- (id)initWithString:(CPString)aString
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{
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return [self initWithString:aString attributes:nil];
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}
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- (id)init
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{
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return [self initWithString:@"" attributes:nil];
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}
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- (id)delegate
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{
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return _delegate;
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}
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- (void)setDelegate:(id)aDelegate
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{
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if (_delegate === aDelegate)
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return;
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var notificationCenter = [CPNotificationCenter defaultCenter];
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if (_delegate && aDelegate === nil)
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{
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[notificationCenter removeObserver:_delegate name:CPTextStorageWillProcessEditingNotification object:self];
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[notificationCenter removeObserver:_delegate name:CPTextStorageDidProcessEditingNotification object:self];
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}
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_delegate = aDelegate;
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if (_delegate)
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{
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if ([_delegate respondsToSelector:@selector(textStorageWillProcessEditing:)])
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[notificationCenter addObserver:_delegate selector:@selector(textStorageWillProcessEditing:) name:CPTextStorageWillProcessEditingNotification object:self];
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if ([_delegate respondsToSelector:@selector(textStorageDidProcessEditing:)])
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[notificationCenter addObserver:_delegate selector:@selector(textStorageDidProcessEditing:) name:CPTextStorageDidProcessEditingNotification object:self];
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}
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}
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- (void)addLayoutManager:(CPLayoutManager)aManager
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{
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if (![_layoutManagers containsObject:aManager])
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{
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[aManager setTextStorage:self];
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[_layoutManagers addObject:aManager];
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}
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}
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- (void)removeLayoutManager:(CPLayoutManager)aManager
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{
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if ([_layoutManagers containsObject:aManager])
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{
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[aManager setTextStorage:nil];
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[_layoutManagers removeObject:aManager];
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}
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}
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- (CPArray)layoutManagers
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{
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return _layoutManagers;
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}
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- (CPRange)editedRange
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{
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return _editedRange;
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}
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- (int)changeInLength
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{
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return _changeInLength;
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}
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- (unsigned)editedMask
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{
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return _editedMask;
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}
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- (void)invalidateAttributesInRange:(CPRange)aRange
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{
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/* FIXME: stub */
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}
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- (void)processEditing
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{
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[[CPNotificationCenter defaultCenter] postNotificationName:CPTextStorageWillProcessEditingNotification
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object:self];
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[self invalidateAttributesInRange:[self editedRange]];
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[[CPNotificationCenter defaultCenter] postNotificationName:CPTextStorageDidProcessEditingNotification
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object:self];
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var c = [_layoutManagers count];
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for (var i = 0; i < c; i++)
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{
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[[_layoutManagers objectAtIndex:i] textStorage:self
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edited:_editedMask
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range:_editedRange
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changeInLength:_changeInLength
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invalidatedRange:_editedRange];
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}
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_editedRange.location = CPNotFound;
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_editedMask = 0;
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_changeInLength = 0;
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}
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- (void)beginEditing
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{
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if (_editCount == 0)
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_editedRange = CPMakeRange(CPNotFound, 0);
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_editCount++;
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}
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- (void)endEditing
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{
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_editCount--;
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if (_editCount == 0)
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[self processEditing];
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}
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- (void)edited:(unsigned)editedMask range:(CPRange)aRange changeInLength:(int)lengthChange
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{
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if (_editCount == 0) /* used outside a beginEditing/endEditing */
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{
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_editedMask = editedMask;
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_changeInLength = lengthChange;
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aRange.length += lengthChange;
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_editedRange = aRange;
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[self processEditing];
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}
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else
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{
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_editedMask |= editedMask;
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_changeInLength += lengthChange;
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aRange.length += lengthChange;
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if (_editedRange.location == CPNotFound)
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_editedRange = aRange;
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else
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_editedRange = CPUnionRange(_editedRange,aRange);
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}
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}
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- (void)removeAttribute:(id)anAttribute range:(CPRange)aRange
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{
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[self beginEditing];
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[super removeAttribute:anAttribute range:aRange];
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[self edited:CPTextStorageEditedAttributes range:aRange changeInLength:0];
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[self endEditing];
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}
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- (void)addAttributes:(CPDictionary)aDictionary range:(CPRange)aRange
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{
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[self beginEditing];
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[super addAttributes:aDictionary range:aRange];
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[self edited:CPTextStorageEditedAttributes range:aRange changeInLength:0];
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[self endEditing];
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}
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- (void)deleteCharactersInRange:(CPRange)aRange
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{
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[self beginEditing];
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[super deleteCharactersInRange:aRange];
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[self edited:CPTextStorageEditedCharacters range:aRange changeInLength:-aRange.length];
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[self endEditing];
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}
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- (void)replaceCharactersInRange:(CPRange)aRange withString:(CPString)aString
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{
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[self beginEditing];
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[super replaceCharactersInRange: aRange withString: aString];
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[self edited: CPTextStorageEditedCharacters range:aRange changeInLength:([aString length] - aRange.length)];
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[self endEditing];
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}
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- (void)replaceCharactersInRange:(CPRange)aRange withAttributedString:(CPAttributedString)aString
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{
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[self beginEditing];
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[super replaceCharactersInRange: aRange withAttributedString:aString];
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[self edited:(CPTextStorageEditedAttributes | CPTextStorageEditedCharacters) range:aRange changeInLength:([aString length] - aRange.length)];
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[self endEditing];
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}
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- (void)setFont:(CPFont)aFont
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{
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_font = aFont;
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}
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- (CPFont)font
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{
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return _font;
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}
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- (void)setForegroundColor:(CPColor)color
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{
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_foregroundColor = color;
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}
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- (CPColor)foregroundColor
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{
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return _foregroundColor;
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}
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- (CPAttributedString)attributedSubstringFromRange:(CPRange)aRange
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{
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if (!aRange.length)
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return [CPAttributedString new];
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return [super attributedSubstringFromRange:aRange];
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}
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@end
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