/* NSText.m The RTFD text class Copyright (C) 1996 Free Software Foundation, Inc. Author: Scott Christley Date: 1996 Author: Felipe A. Rodriguez Date: July 1998 Author: Daniel Bðhringer Date: August 1998 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. */ // doDo: -caret blinking // -formatting routine: broader than 1.5x width cause display problems // -optimization: 1.deletion of single char in paragraph [opti hook 1] // -optimization: 2.newline in first line // -optimization: 3.paragraph made one less line due to delition of single char [opti hook 1; diff from 1.] #if !defined(ABS) #define ABS(A) ({ typeof(A) __a = (A); __a < 0 ? -__a : __a; }) #endif // the definition in gstep-base produces warnings FIX ME FAR #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define HUGE 1e99 enum { NSBackspaceKey = 8, NSCarriageReturnKey = 13, NSDeleteKey = 0x7f, NSBacktabKey = 25 }; @interface _GNULineLayoutInfo:NSObject { NSRange lineRange; NSRect lineRect; float drawingOffset; BOOL dontDisplay; unsigned type; NSString *fingerprintString; // obsolete, unused } typedef enum { // do not use 0 in order to secure calls to nil (calls to nil return 0)! LineLayoutInfoType_Text=1, LineLayoutInfoType_Paragraph=2 } _GNULineLayoutInfo_t; + lineLayoutWithRange:(NSRange) aRange rect:(NSRect) aRect drawingOffset:(float) anOffset type:(unsigned) aType; -(NSRange) lineRange; -(NSRect) lineRect; -(float) drawingOffset; -(BOOL) isDontDisplay; -(unsigned) type; -(void) setLineRange:(NSRange) aRange; -(void) setLineRect:(NSRect) aRect; -(void) setDrawingOffset:(float) anOffset; -(void) setDontDisplay:(BOOL) flag; -(void) setType:(unsigned) aType; -(NSString*) fingerprintString; -(void) setFingerprintString:(NSString*) aString; -(BOOL) isLineTerminatingParagraph; -(NSString*) description; @end @implementation _GNULineLayoutInfo + lineLayoutWithRange:(NSRange) aRange rect:(NSRect) aRect drawingOffset:(float) anOffset type:(unsigned) aType { id ret=[[[_GNULineLayoutInfo alloc] init] autorelease]; [ret setLineRange:aRange]; [ret setLineRect:aRect]; [ret setDrawingOffset:anOffset]; [ret setType:aType]; return ret; } -(BOOL) isDontDisplay {return dontDisplay;} -(unsigned) type {return type;} -(NSRange) lineRange {return lineRange;} -(NSRect) lineRect {return lineRect;} -(float) drawingOffset {return drawingOffset;} -(NSString*) fingerprintString {return fingerprintString;} -(void) setLineRange:(NSRange) aRange {lineRange= aRange;} -(void) setLineRect:(NSRect) aRect { //FIXME, line up textEditor with how text in text cell will be placed. // aRect.origin.y += 2; lineRect= aRect; } -(void) setDrawingOffset:(float) anOffset {drawingOffset= anOffset;} -(void) setDontDisplay:(BOOL) flag {dontDisplay=flag;} -(void) setType:(unsigned) aType {type=aType;} -(void) setFingerprintString:(NSString*) aString { ASSIGN(fingerprintString,aString); } -(NSString*) description { return [[NSDictionary dictionaryWithObjectsAndKeys: NSStringFromRange(lineRange),@"LineRange", NSStringFromRect(lineRect),@"LineRect", fingerprintString,@"fingerprint", nil] description]; } -(BOOL) isLineTerminatingParagraph {return type == LineLayoutInfoType_Paragraph && lineRect.origin.x> 0;} // sort of hackish -(void) dealloc { if(fingerprintString) [fingerprintString release]; [super dealloc]; } @end static NSRange MakeRangeFromAbs(int a1,int a2) // not the same as NSMakeRange! { if (a1 < 0) a1 = 0; if (a2 < 0) a2 = 0; if (a1 < a2) return NSMakeRange(a1,a2-a1); else return NSMakeRange(a2,a1-a2); } /* static NSRange MakeRangeFromAbs(int a1,int a2) { if(a1< a2) return NSMakeRange(a1,a2-a1); else return NSMakeRange(a2,a1-a2); } */ // end: _GNULineLayoutInfo ------------------------------------------------------------------------------------------ // NeXT's NSScanner's scanCharactersFromSet and friends seem to be a bit sluggish on whitespaces and newlines //(have not tried GNUstep-base implementation though). so here is a more pedantic (and faster) implementation: // this class should be considered private since it is not polished at all! @interface _GNUTextScanner:NSObject { NSString *string; NSCharacterSet *set,*iSet; unsigned stringLength; NSRange activeRange; } +(_GNUTextScanner*) scannerWithString:(NSString*) aStr set:(NSCharacterSet*) aSet invertedSet:(NSCharacterSet*) anInvSet; -(void) setString:(NSString*) aString set:(NSCharacterSet*) aSet invertedSet:(NSCharacterSet*) anInvSet; -(NSRange) _scanCharactersInverted:(BOOL) inverted; -(NSRange) scanSetCharacters; -(NSRange) scanNonSetCharacters; -(BOOL) isAtEnd; -(unsigned) scanLocation; -(void) setScanLocation:(unsigned) aLoc; @end @implementation _GNUTextScanner +(_GNUTextScanner*) scannerWithString:(NSString*) aStr set:(NSCharacterSet*) aSet invertedSet:(NSCharacterSet*) anInvSet { _GNUTextScanner *ret=[[self alloc] init]; [ret setString:aStr set:aSet invertedSet:anInvSet]; return [ret autorelease]; } -(void) setString:(NSString*) aString set:(NSCharacterSet*) aSet invertedSet:(NSCharacterSet*) anInvSet { ASSIGN(string,aString); stringLength=[string length]; activeRange=NSMakeRange(0,stringLength); ASSIGN(set,aSet); ASSIGN(iSet,anInvSet); } -(NSRange) _scanCharactersInverted:(BOOL) inverted { NSRange range=NSMakeRange(activeRange.location,0); NSCharacterSet *currentSet= inverted? iSet:set; NSCharacterSet *currentISet= inverted? set:iSet; if(activeRange.location>= stringLength) return range; if([currentSet characterIsMember:[string characterAtIndex:activeRange.location]]) { range=[string rangeOfCharacterFromSet:currentSet options:0 range:activeRange]; } if (range.length) { NSRange iRange=range; iRange=[string rangeOfCharacterFromSet:currentISet options:0 range:MakeRangeFromAbs(NSMaxRange(range),stringLength)]; if(iRange.length) range=MakeRangeFromAbs(range.location,iRange.location); else range=MakeRangeFromAbs(range.location,stringLength); activeRange=MakeRangeFromAbs(NSMaxRange(range),stringLength); } return range; } -(NSRange) scanSetCharacters { return [self _scanCharactersInverted:NO]; } -(NSRange) scanNonSetCharacters { return [self _scanCharactersInverted:YES]; } -(BOOL) isAtEnd { return activeRange.location>= stringLength; } -(unsigned) scanLocation {return activeRange.location;} -(void) setScanLocation:(unsigned) aLoc { activeRange=MakeRangeFromAbs(aLoc,stringLength);} -(void) dealloc { [string release]; [set release]; [iSet release]; [super dealloc]; } @end // end: _GNUTextScanner implementation-------------------------------------- @interface NSAttributedString(DrawingAddition) -(NSSize) sizeRange:(NSRange) aRange; -(void) drawRange:(NSRange) aRange atPoint:(NSPoint) aPoint; -(BOOL) areMultipleFontsInRange:(NSRange) aRange; @end @implementation NSAttributedString(DrawingAddition) -(NSSize) sizeRange:(NSRange) lineRange { NSRect retRect=NSZeroRect; NSRange currRange=NSMakeRange(lineRange.location,0); NSPoint currPoint=NSMakePoint(0,0); NSString *string=[self string]; for(; NSMaxRange(currRange)< NSMaxRange(lineRange);) // draw all "runs" { NSDictionary *attributes=[self attributesAtIndex:NSMaxRange(currRange) longestEffectiveRange:&currRange inRange:lineRange]; NSString *substring=[string substringWithRange:currRange]; NSRect sizeRect=NSMakeRect(currPoint.x,0,0,0); sizeRect.size=[substring sizeWithAttributes:attributes]; retRect=NSUnionRect(retRect,sizeRect); currPoint.x+=sizeRect.size.width; // size attachments } return retRect.size; } -(void) drawRange:(NSRange) lineRange atPoint:(NSPoint) aPoint { NSRange currRange=NSMakeRange(lineRange.location,0); NSPoint currPoint; NSString *string=[self string]; for(currPoint=aPoint; NSMaxRange(currRange)< NSMaxRange(lineRange);) // draw all "runs" { NSDictionary *attributes=[self attributesAtIndex:NSMaxRange(currRange) longestEffectiveRange:&currRange inRange:lineRange]; NSString *substring=[string substringWithRange:currRange]; [substring drawAtPoint:currPoint withAttributes:attributes]; currPoint.x+=[substring sizeWithAttributes:attributes].width; // draw attachments } } -(BOOL) areMultipleFontsInRange:(NSRange) aRange { NSRange longestRange; [self attribute:NSFontAttributeName atIndex:aRange.location longestEffectiveRange:&longestRange inRange:aRange]; if(NSEqualRanges(NSIntersectionRange(longestRange,aRange),aRange)) return NO; else return YES; } @end @interface _GNUSeekableArrayEnumerator:NSObject { unsigned currentIndex; NSArray *array; } - initWithArray:(NSArray*) anArray; - nextObject; - previousObject; - currentObject; @end @implementation _GNUSeekableArrayEnumerator - initWithArray:(NSArray*) anArray { [super init]; array=[anArray retain]; return self; } - nextObject { if(currentIndex >= [array count]) return nil; return [array objectAtIndex:currentIndex++]; } - previousObject { if(!currentIndex) return nil; return [array objectAtIndex:--currentIndex]; } - currentObject { return [array objectAtIndex:currentIndex]; } -(void) dealloc { [array release]; [super dealloc]; } @end @interface NSArray(SeekableEnumerator) -(_GNUSeekableArrayEnumerator*) seekableEnumerator; @end @implementation NSArray(SeekableEnumerator) -(_GNUSeekableArrayEnumerator*) seekableEnumerator { return [[[_GNUSeekableArrayEnumerator alloc] initWithArray:self] autorelease]; } @end // begin: NSText------------------------------------------------------------ @implementation NSText // // Class methods // + (void)initialize { if (self == [NSText class]) { NSArray *r; NSArray *s; [self setVersion:1]; // Initial version r = [NSArray arrayWithObjects: NSStringPboardType, nil]; s = [NSArray arrayWithObjects: NSStringPboardType, nil]; [[NSApplication sharedApplication] registerServicesMenuSendTypes: s returnTypes: r]; } } // //this is sort of a botch up: rtf should be spilled out here in order to be OPENSTEP-compatible // the way to go is surely implementing -(NSData *)RTFDFromRange:(NSRange)range documentAttributes:(NSDictionary *)dict; and friends. // (NeXT OPENSTEP additions to NSAttributedString) // // but on the other hand: since rtf is MS-technology, simply let us declare the NSArchiver generated data stream output being the GNU rich text format ;-) +(NSData*) dataForAttributedString:(NSAttributedString*) aString { return [NSArchiver archivedDataWithRootObject:aString]; } //this is sort of a botch up: a rtf parser should come in here in order to be OPENSTEP-compatible // but on the other hand: since rtf is MS-technology, simply let us declare the NSArchiver generated data stream output being the GNU rich text format ;-) // return value is guaranteed to be a NSAttributedString even if data is only NSString +(NSAttributedString*) attributedStringForData:(NSData*) aData { id erg=[NSUnarchiver unarchiveObjectWithData:aData]; if(![erg isKindOfClass:[NSAttributedString class]]) return [[[NSAttributedString alloc] initWithString:erg] autorelease]; else return erg; } +(NSString*) newlineString {return @"\n";} // // Instance methods // // // Initialization // - init { return [self initWithFrame:NSMakeRect(0,0,100,100)]; } - initWithFrame:(NSRect)frameRect { [super initWithFrame:frameRect]; alignment = NSLeftTextAlignment; is_editable = YES; [self setRichText:NO]; // sets up the contents object is_selectable = YES; imports_graphics = NO; uses_font_panel = NO; is_horizontally_resizable =NO; is_vertically_resizable = YES; is_ruler_visible = NO; is_field_editor = NO; draws_background = YES; [self setBackgroundColor:[NSColor whiteColor]]; [self setTextColor:[NSColor blackColor]]; default_font = [NSFont userFontOfSize:12]; [self setSelectionWordGranularitySet:[NSCharacterSet characterSetWithCharactersInString:@" "]]; //[NSCharacterSet whitespaceCharacterSet] [self setSelectionParagraphGranularitySet:[NSCharacterSet characterSetWithCharactersInString:[[self class] newlineString]]]; [self setMinSize:frameRect.size]; [self setMaxSize:NSMakeSize(HUGE,HUGE)]; [self setString:@"Text"]; [self setSelectedRange:NSMakeRange(0,0)]; return self; } -(NSDictionary*) defaultTypingAttributes { return [NSDictionary dictionaryWithObjectsAndKeys: default_font,NSFontAttributeName, text_color,NSForegroundColorAttributeName, nil]; } /* * Handle enabling/disabling of services menu items. */ - (id) validRequestorForSendType: (NSString*)sendType returnType: (NSString*)returnType { if ((!sendType || [sendType isEqual: NSStringPboardType]) && (!returnType || [returnType isEqual: NSStringPboardType])) { if (([self selectedRange].length || !sendType) && ([self isEditable] || !returnType)) { return self; } } return [super validRequestorForSendType: sendType returnType: returnType]; } - (BOOL) writeSelectionToPasteboard: (NSPasteboard*)pb types: (NSArray*)sendTypes { NSArray *types; NSRange range; NSString *string; if ([sendTypes containsObject: NSStringPboardType] == NO) { return NO; } types = [NSArray arrayWithObjects: NSStringPboardType, nil]; [pb declareTypes: types owner: nil]; range = [self selectedRange]; string = [self string]; string = [string substringWithRange: range]; return [pb setString: string forType: NSStringPboardType]; } // // handle font pasteboard as well! // handle ruler pasteboard as well! -(BOOL) performPasteOperation:(NSPasteboard *)pboard { // color accepting if([pboard availableTypeFromArray:[NSArray arrayWithObject:NSColorPboardType]]) { NSColor *color=[NSColor colorFromPasteboard:pboard]; if([self isRichText]) { [self setTextColor:color range:[self selectedRange]]; } else [self setTextColor:color]; return YES; } if([self importsGraphics]) { NSArray *types=[NSArray arrayWithObjects:NSFileContentsPboardType, NSRTFDPboardType, NSRTFPboardType, NSStringPboardType, NSTIFFPboardType, nil]; if([[pboard availableTypeFromArray:types] isEqualToString:NSRTFDPboardType]) { [self insertText:[[self class] attributedStringForData:[pboard dataForType:NSRTFDPboardType]]]; } else if([[pboard availableTypeFromArray:types] isEqualToString:NSRTFPboardType]) { [self insertText:[[self class] attributedStringForData:[pboard dataForType:NSRTFPboardType]]]; } else if([[pboard availableTypeFromArray:types] isEqualToString:NSStringPboardType]) { [self insertText:[pboard stringForType:NSStringPboardType]]; return YES; } } else if([self isRichText]) { NSArray *types=[NSArray arrayWithObjects:NSRTFPboardType, NSStringPboardType,nil]; if([[pboard availableTypeFromArray:types] isEqualToString:NSRTFPboardType]) { [self insertText:[[self class] attributedStringForData:[pboard dataForType:NSRTFPboardType]]]; } else if([[pboard availableTypeFromArray:types] isEqualToString:NSStringPboardType]) { [self insertText:[pboard stringForType:NSStringPboardType]]; return YES; } } else // plain text { NSArray *types=[NSArray arrayWithObjects:NSStringPboardType, nil]; if([[pboard availableTypeFromArray:types] isEqualToString:NSStringPboardType]) { [self insertText:[pboard stringForType:NSStringPboardType]]; return YES; } } return NO; } - (BOOL) readSelectionFromPasteboard: (NSPasteboard*)pb { return [self performPasteOperation:pb]; } // begin: dragging of colors and files --------------- -(unsigned int) draggingEntered:(id )sender { return NSDragOperationGeneric; } -(unsigned int) draggingUpdated:(id )sender { return NSDragOperationGeneric; } -(void) draggingExited:(id )sender { } -(BOOL) prepareForDragOperation:(id )sender { return YES; } -(BOOL) performDragOperation:(id )sender { return [self performPasteOperation:[sender draggingPasteboard]]; } -(void) concludeDragOperation:(id )sender { } // end: drag accepting --------------------------------- - (void)dealloc { [self unregisterDraggedTypes]; [background_color release]; [default_font release]; [text_color release]; [plainContent release]; [rtfContent release]; [super dealloc]; } -(NSArray*) acceptableDragTypes { NSMutableArray *ret=[NSMutableArray arrayWithObjects:NSStringPboardType, NSColorPboardType, nil]; if([self isRichText]) [ret addObject:NSRTFPboardType]; if([self importsGraphics]) [ret addObject:NSRTFDPboardType]; return ret; } -(void) updateDragTypeRegistration { [self registerForDraggedTypes:[self acceptableDragTypes]]; } -(NSRange) selectionRangeForProposedRange:(NSRange)proposedCharRange granularity:(NSSelectionGranularity)granularity { NSCharacterSet *set=nil; unsigned lastIndex=[self textLength]-1,lpos=MIN(lastIndex,proposedCharRange.location), rpos=NSMaxRange(proposedCharRange); // better: rpos=MAX(0,(int)NSMaxRange(proposedCharRange)-1); NSString *string=[self string]; BOOL rmemberstate,lmemberstate; if(![string length]) { NSLog(@"We have no length, our range is 0,0\n"); return NSMakeRange(0,0); } switch(granularity) { case NSSelectByCharacter: return NSIntersectionRange(proposedCharRange,NSMakeRange(0,[self textLength]+1)); case NSSelectByWord: set=selectionWordGranularitySet; break; case NSSelectByParagraph: set=selectionParagraphGranularitySet; break; } // now work on set... lmemberstate=[set characterIsMember:[string characterAtIndex:lpos]]; rmemberstate=[set characterIsMember:[string characterAtIndex:MIN(rpos,lastIndex)]]; while (rpos<= lastIndex && [set characterIsMember:[string characterAtIndex:rpos]]== rmemberstate) rpos++; while(lpos && [set characterIsMember:[string characterAtIndex:lpos]]== lmemberstate) lpos--; if([set characterIsMember:[string characterAtIndex:lpos]] != lmemberstate && lpos < proposedCharRange.location) lpos++; NSLog(@"lpos = %d, rpos = %d\n", lpos, rpos); return MakeRangeFromAbs(lpos,rpos); } // // Getting and Setting Contents // // low level (no selection handling, relayout or display) -(void) replaceRange:(NSRange)range withAttributedString:(NSAttributedString*)attrString { if([self isRichText]) { return [rtfContent replaceCharactersInRange:range withAttributedString:attrString]; } else return [plainContent replaceCharactersInRange:range withString:[attrString string]]; } -(void) replaceRange:(NSRange)range withRTFD:(NSData *)rtfdData { return [self replaceRange:range withAttributedString:[[self class] attributedStringForData:rtfdData]]; } -(void) replaceRange:(NSRange)range withRTF:(NSData*) rtfData { [self replaceRange:range withRTFD:rtfData]; } -(void) replaceRange:(NSRange)range withString:(NSString*) aString { if([self isRichText]) { return [rtfContent replaceCharactersInRange:range withString:aString]; } else return [plainContent replaceCharactersInRange:range withString:aString]; } -(void) setText:(NSString*) aString range:(NSRange) aRange { [self replaceRange:(NSRange)aRange withString:aString]; } -(NSData*) RTFDFromRange:(NSRange)range { if([self isRichText]) { return [[self class] dataForAttributedString:[rtfContent attributedSubstringFromRange:range]]; } else return nil; } -(NSData*) RTFFromRange:(NSRange)range { return [self RTFDFromRange:range]; } -(void) setString:(NSString *)string { [plainContent release]; plainContent=[[NSMutableString stringWithString:string] retain]; [lineLayoutInformation autorelease]; lineLayoutInformation=nil; // force complete re-layout [self setRichText:NO]; [self setNeedsDisplay:YES]; } -(void) setText:(NSString *)string {[self setString:string];} -(NSString*) string { if([self isRichText]) return [rtfContent string]; else return plainContent; } -(NSString*) text {return [self string];} // // Managing Global Characteristics // -(NSTextAlignment)alignment { return alignment; } -(BOOL) drawsBackground { return draws_background; } -(BOOL) importsGraphics { return imports_graphics; } -(BOOL) isEditable { return is_editable; } -(BOOL) isRichText { return is_rich_text; } -(BOOL) isSelectable { return is_selectable; } - (void)setAlignment:(NSTextAlignment)mode { alignment = mode; } - (void)setDrawsBackground:(BOOL)flag { draws_background = flag; } - (void)setEditable:(BOOL)flag { is_editable = flag; if (flag) is_selectable = YES; // If we are editable then we are selectable } - (void)setImportsGraphics:(BOOL)flag { imports_graphics = flag; [self updateDragTypeRegistration]; } -(void) setRichText:(BOOL)flag { is_rich_text = flag; if(flag) { if(!rtfContent) rtfContent=[[NSMutableAttributedString alloc] initWithString:plainContent? (NSString*)plainContent:@"" attributes:[self defaultTypingAttributes]]; [lineLayoutInformation autorelease]; lineLayoutInformation=nil; [self rebuildLineLayoutInformationStartingAtLine:0]; } else { if(!plainContent) plainContent=[[NSMutableString alloc] initWithString:rtfContent? [rtfContent string]:@""]; [self rebuildLineLayoutInformationStartingAtLine:0]; } [self updateDragTypeRegistration]; [self sizeToFit]; [self setNeedsDisplay:YES]; } - (void)setSelectable:(BOOL)flag { is_selectable = flag; if (!flag) is_editable = NO; // If we are not selectable then we must not be editable } // // Managing Font and Color // -(NSColor*) backgroundColor { return background_color; } -(NSFont*) font { return default_font; } -(NSColor*) textColor { return text_color; } -(BOOL) usesFontPanel { return uses_font_panel; } // This action method changes the font of the selection for a rich text object, or of all text for a plain text object. If the receiver doesn't use the Font Panel, however, this method does nothing. -(void) changeFont:sender { if([self usesFontPanel]) { if([self isRichText]) { NSRange selectedRange=[self selectedRange], searchRange=selectedRange,foundRange; int maxSelRange; for(maxSelRange=NSMaxRange(selectedRange); searchRange.location< maxSelRange; searchRange=NSMakeRange(NSMaxRange(foundRange),maxSelRange-NSMaxRange(foundRange))) { NSFont *font=[rtfContent attribute:NSFontAttributeName atIndex:searchRange.location longestEffectiveRange:&foundRange inRange:searchRange]; if(font) { [self setFont:[sender convertFont:font] ofRange:foundRange]; } } } else { [self setFont:[sender convertFont:[[self defaultTypingAttributes] objectForKey:NSFontAttributeName]]]; } } } -(void) setSelectionWordGranularitySet:(NSCharacterSet*) aSet { ASSIGN(selectionWordGranularitySet, aSet); } -(void) setSelectionParagraphGranularitySet:(NSCharacterSet*) aSet { ASSIGN(selectionParagraphGranularitySet, aSet); } - (void)setBackgroundColor:(NSColor *)color { ASSIGN(background_color, color); } -(void) setTypingAttributes:(NSDictionary*) dict { if(![dict isKindOfClass:[NSMutableDictionary class]]) { [typingAttributes autorelease]; typingAttributes=[[NSMutableDictionary alloc] initWithDictionary:dict]; // do not autorelease! } else ASSIGN(typingAttributes, (NSMutableDictionary*)dict); } -(NSMutableDictionary*) typingAttributes { if(typingAttributes) return typingAttributes; else return [NSMutableDictionary dictionaryWithDictionary:[self defaultTypingAttributes]]; } - (void)setTextColor:(NSColor *)color range:(NSRange)range { if([self isRichText]) { if(color) [rtfContent addAttribute:NSForegroundColorAttributeName value:color range:range]; } else {} } -(void) setColor:(NSColor *)color ofRange:(NSRange)range { [self setTextColor:color range:range]; } - (void)setFont:(NSFont *)obj { ASSIGN(default_font, obj); } - (void)setFont:(NSFont *)font ofRange:(NSRange)range { if([self isRichText]) { if(font) { [rtfContent addAttribute:NSFontAttributeName value:font range:range]; [self rebuildFromCharacterIndex:range.location]; NSLog(@"did set font"); } } else {} } - (void)setTextColor:(NSColor *)color { ASSIGN(text_color,color); if(![self isRichText]) [self setNeedsDisplay:YES]; } - (void)setUsesFontPanel:(BOOL)flag { uses_font_panel = flag; } // // Managing the Selection // - (NSRange)selectedRange { return selected_range; } -(BOOL) shouldDrawInsertionPoint { return ([self selectedRange].length==0) && [self isEditable]; } -(void) drawInsertionPointInRect:(NSRect)rect color:(NSColor *)color turnedOn:(BOOL)flag { BOOL didLock=NO; if (![self window]) return; if([self window] && [[self class] focusView] != self) { [self lockFocus]; didLock=YES; } if(flag) { [color set]; NSRectFill(rect); } else { [[self backgroundColor] set]; NSRectFill(rect); } if(didLock) { [self unlockFocus]; [[self window] flushWindow]; } } -(void) drawInsertionPointAtIndex:(unsigned)index color:(NSColor *)color turnedOn:(BOOL)flag { NSRect startRect=[self rectForCharacterIndex:index]; [self drawInsertionPointInRect:NSMakeRect(startRect.origin.x, startRect.origin.y,0.5,startRect.size.height) color:[NSColor blackColor] turnedOn:flag]; } -(void) drawSelectionAsRangeNoCaret:(NSRange) aRange { if(aRange.length) { NSRect startRect=[self rectForCharacterIndex:aRange.location], endRect=[self rectForCharacterIndex:NSMaxRange(aRange)]; if(startRect.origin.y == endRect.origin.y) // single line selection { NSHighlightRect(NSMakeRect(startRect.origin.x,startRect.origin.y,endRect.origin.x-startRect.origin.x, startRect.size.height)); } else if(startRect.origin.y == endRect.origin.y-endRect.size.height) // two line selection { NSHighlightRect((NSMakeRect(startRect.origin.x,startRect.origin.y,[self frame].size.width-startRect.origin.x,startRect.size.height))); // first line NSHighlightRect(NSMakeRect(0,endRect.origin.y,endRect.origin.x,endRect.size.height)); // second line } else // 3 Rects: multiline selection { NSHighlightRect(((NSMakeRect(startRect.origin.x,startRect.origin.y,[self frame].size.width-startRect.origin.x,startRect.size.height)))); // first line NSHighlightRect(NSMakeRect(0,NSMaxY(startRect),[self frame].size.width,endRect.origin.y-NSMaxY(startRect))); // intermediate lines NSHighlightRect(NSMakeRect(0,endRect.origin.y,endRect.origin.x,endRect.size.height)); // last line } } } -(void) drawSelectionAsRange:(NSRange) aRange { if(aRange.length) { [self drawSelectionAsRangeNoCaret:aRange]; } else [self drawInsertionPointAtIndex:aRange.location color:[NSColor blackColor] turnedOn:YES]; } // low level selection setting including delegation -(void) setSelectedRangeNoDrawing:(NSRange)range { #if 0 // ask delegate for selection validation #endif selected_range = range; #if 0 [[NSNotificationCenter defaultCenter] postNotificationName:NSTextViewDidChangeSelectionNotification object:self userInfo:[NSDictionary dictionaryWithObjectsAndKeys:NSStringFromRange(selected_range),NSOldSelectedCharacterRange, nil]]; #endif } -(void) setSelectedRange:(NSRange)range { BOOL didLock=NO; if(![self window]) return; if([self window] && [[self class] focusView] != self) { [self lockFocus]; didLock=YES; } if(selected_range.length== 0) // remove old cursor { [self drawInsertionPointAtIndex:selected_range.location color:nil turnedOn:NO]; } else { [self drawSelectionAsRange:selected_range]; } [self setSelectedRangeNoDrawing:range]; if([self usesFontPanel]) // update fontPanel { BOOL isMultiple=NO; NSFont *currentFont=nil; if([self isRichText]) { if([rtfContent areMultipleFontsInRange:selected_range]) isMultiple=YES; else currentFont=[[rtfContent attribute:NSFontAttributeName atIndex:range.location longestEffectiveRange:NULL inRange:range] objectForKey:NSFontAttributeName]; } else currentFont=[[self defaultTypingAttributes] objectForKey:NSFontAttributeName]; [[NSFontPanel sharedFontPanel] setPanelFont:currentFont isMultiple:isMultiple]; } // display if(range.length) { // disable caret timed entry } else // no selection { if([self isRichText]) { [self setTypingAttributes:[NSMutableDictionary dictionaryWithDictionary:[rtfContent attributesAtIndex:range.location effectiveRange:NULL]]]; } // enable caret timed entry } [self drawSelectionAsRange:range]; [self scrollRangeToVisible:range]; if(didLock) { [self unlockFocus]; [[self window] flushWindow]; } } // // Sizing the Frame Rectangle // -(void) setFrame:(NSRect)frameRect { [super setFrame:frameRect]; } -(BOOL) isHorizontallyResizable { return is_horizontally_resizable; } -(BOOL) isVerticallyResizable { return is_vertically_resizable; } -(NSSize) maxSize { return maxSize; } -(NSSize) minSize { return minSize; } - (void)setHorizontallyResizable:(BOOL)flag { is_horizontally_resizable = flag; } - (void)setMaxSize:(NSSize)newMaxSize { maxSize=newMaxSize; } - (void)setMinSize:(NSSize)newMinSize { minSize=newMinSize; } -(void) setVerticallyResizable:(BOOL)flag { is_vertically_resizable = flag; } -(unsigned) textLength { if([self isRichText]) return [rtfContent length]; else return [plainContent length]; } -(NSRect) boundingRectForLineRange:(NSRange)lineRange { NSArray *linesToDraw=[lineLayoutInformation subarrayWithRange:lineRange]; NSEnumerator *lineEnum; _GNULineLayoutInfo *currentInfo; NSRect retRect=NSMakeRect(0,0,0,0); for((lineEnum=[linesToDraw objectEnumerator]); (currentInfo=[lineEnum nextObject]);) { retRect=NSUnionRect(retRect,[currentInfo lineRect]); } return retRect; } -(void) disableDisplay {displayDisabled=YES;} -(void) reenableDisplay {displayDisabled=NO;} -(void) sizeToFit { NSRect sizeToRect=[self frame]; NSLog(@"- sizeToFit called.\n"); if ([self isFieldEditor]) // if we are a field editor we don't have to handle the size. return; if([self isHorizontallyResizable]) { if([lineLayoutInformation count]) { sizeToRect=[self boundingRectForLineRange:NSMakeRange(0,[lineLayoutInformation count])]; } else sizeToRect.size=minSize; } else if([self isVerticallyResizable]) { if([lineLayoutInformation count]) { NSRect rect=NSUnionRect([[lineLayoutInformation objectAtIndex:0] lineRect], [[lineLayoutInformation lastObject] lineRect]); float newHeight=rect.size.height; float newY; NSRect tRect; if([[lineLayoutInformation lastObject] type] == LineLayoutInfoType_Paragraph && NSMaxY(rect)<= newHeight) newHeight+=[[lineLayoutInformation lastObject] lineRect].size.height; if ( [[self superview] isKindOfClass: [NSClipView class]] ) tRect = [(NSClipView*)[self superview] documentVisibleRect]; else tRect = [self bounds]; if (currentCursorY < tRect.size.height + tRect.origin.y - [[lineLayoutInformation lastObject] lineRect].size.height) newY = sizeToRect.origin.y; else if (currentCursorY > tRect.size.height + tRect.origin.y - [[lineLayoutInformation lastObject] lineRect].size.height) { newY = currentCursorY - tRect.size.height + ([[lineLayoutInformation lastObject] lineRect].size.height * 2); [(NSClipView *)[self superview] scrollToPoint:NSMakePoint(sizeToRect.origin.x,newY)]; } else NSLog(@"=========> Oops!\n"); newHeight=MIN(maxSize.height,MAX(newHeight,minSize.height)); sizeToRect=NSMakeRect(sizeToRect.origin.x,sizeToRect.origin.y, sizeToRect.size.width,newHeight); } else sizeToRect=NSMakeRect(0,0,minSize.width,minSize.height); } if(!NSEqualSizes([self frame].size,sizeToRect.size)) { [self setFrame:sizeToRect]; //[self setFrameSize:sizeToRect.size]; } } -(void) sizeToFit:sender {[self sizeToFit];} // // Responding to Editing Commands // -(void) alignCenter:sender { } -(void) alignLeft:sender { } -(void) alignRight:sender { } -(void) selectAll:sender { [self setSelectedRange:NSMakeRange(0,[self textLength])]; } -(void) subscript:sender { } -(void) superscript:sender { } -(void) underline:sender { if([self isRichText]) { BOOL doUnderline=YES; if([[rtfContent attribute:NSUnderlineStyleAttributeName atIndex:[self selectedRange].location effectiveRange:NULL] intValue]) doUnderline=NO; if([self selectedRange].length) { [rtfContent addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt:doUnderline] range:[self selectedRange]]; [self rebuildFromCharacterIndex:[self selectedRange].location]; } else [[self typingAttributes] setObject:[NSNumber numberWithInt:doUnderline] forKey: NSUnderlineStyleAttributeName]; // no redraw necess. } } -(void) unscript:sender { if([self isRichText]) { if([self selectedRange].length) { [rtfContent removeAttribute:NSUnderlineStyleAttributeName range:[self selectedRange]]; [self rebuildFromCharacterIndex:[self selectedRange].location]; } else [[self typingAttributes] removeObjectForKey:NSUnderlineStyleAttributeName]; // no redraw necess. } } // // Managing the Ruler // -(BOOL) isRulerVisible { return NO; } -(void) toggleRuler:sender { } // // Scrolling // -(void) scrollRangeToVisible:(NSRange)range { [self scrollRectToVisible:NSUnionRect([self rectForCharacterIndex:[self selectedRange].location], [self rectForCharacterIndex:NSMaxRange([self selectedRange])])]; } // // Reading and Writing RTFD Files // -(BOOL) readRTFDFromFile:(NSString *)path { NSData *data=[NSData dataWithContentsOfFile:path]; id peek; if(data && (peek=[[self class] attributedStringForData:data])) { is_rich_text=YES; // not [self setRichText:YES] for efficiancy reasons [self updateDragTypeRegistration]; [self replaceRange:NSMakeRange(0,[self textLength]) withAttributedString:peek]; [self rebuildLineLayoutInformationStartingAtLine:0]; [self setNeedsDisplay:YES]; return YES; } return NO; } -(BOOL) writeRTFDToFile:(NSString *)path atomically:(BOOL)flag { if([self isRichText]) { NSFileWrapper *wrapper=[[[NSFileWrapper alloc] initRegularFileWithContents:[[self class] dataForAttributedString:rtfContent]] autorelease]; return [wrapper writeToFile:path atomically:flag updateFilenames:YES]; } return NO; } // // Managing the Field Editor // -(BOOL) isFieldEditor { return is_field_editor; } -(void) setFieldEditor:(BOOL)flag { is_field_editor = flag; } -(int) lineLayoutIndexForCharacterIndex:(unsigned) anIndex { NSEnumerator *lineEnum; _GNULineLayoutInfo *currentInfo; if([lineLayoutInformation count] && anIndex>= NSMaxRange([[lineLayoutInformation lastObject] lineRange])) return [lineLayoutInformation count]-1; for((lineEnum=[lineLayoutInformation objectEnumerator]); (currentInfo=[lineEnum nextObject]);) { NSRange lineRange=[currentInfo lineRange]; if(lineRange.location<= anIndex && anIndex<= NSMaxRange(lineRange)-([currentInfo type] == LineLayoutInfoType_Paragraph? 1:0)) return [lineLayoutInformation indexOfObject:currentInfo]; } if([lineLayoutInformation count]) NSLog(@"NSText's lineLayoutIndexForCharacterIndex: index out of bounds!"); return 0; } // choose granularity according to keyboard modifier flags -(void) moveCursorUp:sender { unsigned cursorIndex; NSPoint cursorPoint; if([self selectedRange].length) { currentCursorX=[self rectForCharacterIndex:[self selectedRange].location].origin.x; currentCursorY=[self rectForCharacterIndex:[self selectedRange].location].origin.y; } cursorIndex=[self selectedRange].location; cursorPoint=[self rectForCharacterIndex:cursorIndex].origin; cursorIndex=[self characterIndexForPoint:NSMakePoint(currentCursorX+0.001,MAX(0,cursorPoint.y-0.001))]; [self setSelectedRange:[self selectionRangeForProposedRange:NSMakeRange(cursorIndex,0) granularity:NSSelectByCharacter]]; // FIXME: Terrible hack. [self insertText:@""]; } -(void) moveCursorDown:sender { unsigned cursorIndex; NSRect cursorRect; if([self selectedRange].length) { currentCursorX=[self rectForCharacterIndex:NSMaxRange([self selectedRange])].origin.x; currentCursorY=[self rectForCharacterIndex:NSMaxRange([self selectedRange])].origin.y; } cursorIndex=[self selectedRange].location; cursorRect=[self rectForCharacterIndex:cursorIndex]; cursorIndex=[self characterIndexForPoint:NSMakePoint(currentCursorX+0.001,NSMaxY(cursorRect)+0.001)]; [self setSelectedRange:[self selectionRangeForProposedRange:NSMakeRange(cursorIndex,0) granularity:NSSelectByCharacter]]; // FIXME: Terrible hack. [self insertText:@""]; } -(void) moveCursorLeft:sender { [self setSelectedRange:[self selectionRangeForProposedRange:NSMakeRange([self selectedRange].location-1,0) granularity:NSSelectByCharacter]]; currentCursorX=[self rectForCharacterIndex:[self selectedRange].location].origin.x; } -(void) moveCursorRight:sender { [self setSelectedRange:[self selectionRangeForProposedRange:NSMakeRange(MIN(NSMaxRange([self selectedRange])+1,[self textLength]),0) granularity:NSSelectByCharacter]]; currentCursorX=[self rectForCharacterIndex:[self selectedRange].location].origin.x; } // // Handling Events // -(void) mouseDown:(NSEvent *)theEvent { NSSelectionGranularity granularity= NSSelectByCharacter; NSRange chosenRange,prevChosenRange,proposedRange; NSPoint point,startPoint; NSEvent *currentEvent; unsigned startIndex; BOOL didDragging=NO; NSLog(@"mouseDown:"); if (!is_selectable) return; // If not selectable then don't recognize the mouse down [[self window] makeFirstResponder:self]; switch([theEvent clickCount]) { case 1: granularity=NSSelectByCharacter; break; case 2: granularity=NSSelectByWord; break; case 3: granularity=NSSelectByParagraph; break; } startPoint=[self convertPoint:[theEvent locationInWindow] fromView:nil]; startIndex=[self characterIndexForPoint:startPoint]; proposedRange=NSMakeRange(startIndex,0); chosenRange=prevChosenRange=[self selectionRangeForProposedRange:proposedRange granularity:granularity]; [self lockFocus]; // clean up before doing the dragging if([self selectedRange].length== 0) // remove old cursor { [self drawInsertionPointAtIndex:[self selectedRange].location color:nil turnedOn:NO]; } else [self drawSelectionAsRangeNoCaret:[self selectedRange]]; // make this non-blocking (or make use of timed entries) for(currentEvent= [[self window] nextEventMatchingMask:NSLeftMouseDraggedMask|NSLeftMouseUpMask];[currentEvent type] != NSLeftMouseUp; (currentEvent= [[self window] nextEventMatchingMask:NSLeftMouseDraggedMask|NSLeftMouseUpMask]), prevChosenRange=chosenRange) // run modal loop { BOOL didScroll=[self autoscroll:currentEvent]; point = [self convertPoint:[currentEvent locationInWindow] fromView:nil]; proposedRange=MakeRangeFromAbs([self characterIndexForPoint:point],startIndex); chosenRange=[self selectionRangeForProposedRange:proposedRange granularity:granularity]; if(NSEqualRanges(prevChosenRange,chosenRange)) { if(!didDragging) { [self drawSelectionAsRangeNoCaret:chosenRange]; [[self window] flushWindow]; } else continue; } // this changes the selection without needing instance drawing (carefully thought out ;-) if(!didScroll) { [self drawSelectionAsRangeNoCaret:MakeRangeFromAbs(MIN(chosenRange.location, prevChosenRange.location), MAX(chosenRange.location, prevChosenRange.location))]; [self drawSelectionAsRangeNoCaret:MakeRangeFromAbs(MIN(NSMaxRange(chosenRange),NSMaxRange(prevChosenRange)), MAX(NSMaxRange(chosenRange),NSMaxRange(prevChosenRange)))]; [[self window] flushWindow]; } else { [self drawRectNoSelection:[self visibleRect]]; [self drawSelectionAsRangeNoCaret:chosenRange]; [[self window] flushWindow]; } didDragging=YES; } NSLog(@"chosenRange. location = % d, length = %d\n", (int)chosenRange.location, (int)chosenRange.length); [self setSelectedRangeNoDrawing:chosenRange]; if(!didDragging) [self drawSelectionAsRange:chosenRange]; else if(chosenRange.length == 0) [self drawInsertionPointAtIndex:chosenRange.location color:[NSColor blackColor] turnedOn:YES]; currentCursorX=[self rectForCharacterIndex:chosenRange.location].origin.x; // remember for column stable cursor up/down currentCursorY=[self rectForCharacterIndex:chosenRange.location].origin.y; // remember for column stable cursor up/down [self unlockFocus]; [[self window] flushWindow]; } -(void) redisplayForLineRange:(NSRange) redrawLineRange { BOOL didLock=NO; if([self window] && [[self class] focusView] != self) { [self lockFocus]; didLock=YES; } if([lineLayoutInformation count] && redrawLineRange.location < [lineLayoutInformation count] && redrawLineRange.length) { _GNULineLayoutInfo *firstInfo=[lineLayoutInformation objectAtIndex:redrawLineRange.location]; NSRect displayRect,firstRect=[firstInfo lineRect]; if([firstInfo type] == LineLayoutInfoType_Paragraph && firstRect.origin.x >0 && redrawLineRange.location) { redrawLineRange.location--;redrawLineRange.length++; } displayRect=NSUnionRect([[lineLayoutInformation objectAtIndex:redrawLineRange.location] lineRect], [[lineLayoutInformation objectAtIndex:MAX(0,(int)NSMaxRange(redrawLineRange)-1)] lineRect]); displayRect.size.width=[self frame].size.width-displayRect.origin.x; [[self backgroundColor] set]; NSRectFill(displayRect); if([self isRichText]) { [self drawRichLinesInLineRange:redrawLineRange]; } else { [self drawPlainLinesInLineRange:redrawLineRange]; } [self drawSelectionAsRange:[self selectedRange]]; } if([self drawsBackground]) // clean up the remaining area under text of us { float lowestY=0; NSRect myFrame=[self frame]; if([lineLayoutInformation count]) lowestY=NSMaxY([[lineLayoutInformation lastObject] lineRect]); if(![lineLayoutInformation count] || (lowestY < NSMaxY(myFrame) && myFrame.size.height<= [self minSize].height)) { [[self backgroundColor] set]; NSRectFill(NSMakeRect(0,lowestY,myFrame.size.width,NSMaxY(myFrame)-lowestY)); if(![lineLayoutInformation count] || [[lineLayoutInformation lastObject] type] == LineLayoutInfoType_Paragraph) [self drawSelectionAsRange:[self selectedRange]]; } } if(didLock) { [self unlockFocus]; [[self window] flushWindow]; } } -(void) rebuildFromCharacterIndex:(int) anIndex { NSRange redrawLineRange; int start,count=[self rebuildLineLayoutInformationStartingAtLine:start=[self lineLayoutIndexForCharacterIndex:anIndex]]; redrawLineRange=NSMakeRange(MAX(0,start-1),count+1); redrawLineRange=NSIntersectionRange(redrawLineRange,[self lineRangeForRect:[self visibleRect]]); [self redisplayForLineRange:redrawLineRange]; NSLog(NSStringFromRange(redrawLineRange)); } // central text inserting method (takes care of optimized redraw/ cursor positioning) -(void) insertText:insertObjc { NSRange selectedRange=[self selectedRange]; int lineIndex=[self lineLayoutIndexForCharacterIndex:selectedRange.location],origLineIndex=lineIndex,caretLineIndex=lineIndex; NSRange redrawLineRange; NSString *insertString=nil; if([insertObjc isKindOfClass:[NSString class]]) insertString=insertObjc; else insertString=[insertObjc string]; // in case e.g a space is inserted and a word actually shortened: redraw previous line to give it the chance to move up if([lineLayoutInformation count] && [[lineLayoutInformation objectAtIndex:origLineIndex] type] != LineLayoutInfoType_Paragraph && origLineIndex && [[lineLayoutInformation objectAtIndex:origLineIndex-1] type] != LineLayoutInfoType_Paragraph) origLineIndex--; redrawLineRange=MakeRangeFromAbs(origLineIndex,[lineLayoutInformation count]); if([self isRichText]) { [self replaceRange:[self selectedRange] withAttributedString:[insertObjc isKindOfClass:[NSAttributedString class]]? insertObjc: [[[NSAttributedString alloc] initWithString:insertString attributes:[self typingAttributes]] autorelease]]; } else { [self replaceRange:[self selectedRange] withString:insertString]; } redrawLineRange.length=[self rebuildLineLayoutInformationStartingAtLine:redrawLineRange.location delta:[insertString length]-selectedRange.length actualLine:caretLineIndex]; [self sizeToFit]; // ScrollView interaction [self setSelectedRange:NSMakeRange([self selectedRange].location+[insertString length],0)]; // move cursor [self selectionRangeForProposedRange:] currentCursorX=[self rectForCharacterIndex:[self selectedRange].location].origin.x; // remember x for row-stable cursor movements currentCursorY=[self rectForCharacterIndex:[self selectedRange].location].origin.y; // remember x for row-stable cursor movements redrawLineRange=NSIntersectionRange(redrawLineRange,[self lineRangeForRect:[self visibleRect]]); [self redisplayForLineRange:redrawLineRange]; [self textDidChange:nil]; // broadcast notification } // central text deletion/backspace method (takes care of optimized redraw/ cursor positioning) -(void) deleteRange:(NSRange) aRange backspace:(BOOL) flag { int redrawLineIndex,caretLineIndex,firstLineIndex,lastLineIndex,linePosition; NSRange redrawLineRange; NSRange deleteRange; if(!aRange.length && !flag) return; if(!aRange.location && ! aRange.length) return; if(aRange.length) { deleteRange=aRange;linePosition=deleteRange.location;} else { deleteRange=NSMakeRange(MAX(0,aRange.location-1),1);linePosition=NSMaxRange(deleteRange); } firstLineIndex=caretLineIndex=[self lineLayoutIndexForCharacterIndex:linePosition]; lastLineIndex=[self lineLayoutIndexForCharacterIndex:NSMaxRange(deleteRange)]; redrawLineIndex=MAX(0,firstLineIndex-1); // since first word may move upward if(firstLineIndex && [[lineLayoutInformation objectAtIndex:firstLineIndex-1] type] == LineLayoutInfoType_Paragraph) { _GNULineLayoutInfo *upperInfo=[lineLayoutInformation objectAtIndex:firstLineIndex], *prevInfo=[lineLayoutInformation objectAtIndex:firstLineIndex-1]; if(linePosition> [upperInfo lineRange].location) redrawLineIndex++; // no danger of word moving up else if([prevInfo lineRect].origin.x > 0) redrawLineIndex--; // remove newline: skip paragraph-terminating infoObject redrawLineIndex=MAX(0,redrawLineIndex); } redrawLineIndex=MIN(redrawLineIndex,[lineLayoutInformation count]-1); redrawLineRange=MakeRangeFromAbs(redrawLineIndex,[lineLayoutInformation count]); if([self isRichText]) [rtfContent deleteCharactersInRange:deleteRange]; else [plainContent deleteCharactersInRange:deleteRange]; redrawLineRange.length=[self rebuildLineLayoutInformationStartingAtLine:redrawLineRange.location delta:-deleteRange.length actualLine:caretLineIndex]; [self sizeToFit]; // ScrollView interaction [self setSelectedRange:NSMakeRange(deleteRange.location,0)]; // move cursor [self selectionRangeForProposedRange:] currentCursorX=[self rectForCharacterIndex:[self selectedRange].location].origin.x; // remember x for row-stable cursor movements currentCursorY=[self rectForCharacterIndex:[self selectedRange].location].origin.y; // remember x for row-stable cursor movements redrawLineRange=NSIntersectionRange(redrawLineRange,[self lineRangeForRect:[self visibleRect]]); [self redisplayForLineRange:redrawLineRange]; [self textDidChange:nil]; // broadcast notification } -(void) keyDown:(NSEvent *)theEvent { unsigned short keyCode; if(!is_editable) return; // If not editable then don't recognize the key down if((keyCode=[theEvent keyCode])) switch(keyCode) { case NSUpArrowFunctionKey: //NSUpArrowFunctionKey: [self moveCursorUp:self]; return; case NSDownArrowFunctionKey: //NSDownArrowFunctionKey: [self moveCursorDown:self]; return; case NSLeftArrowFunctionKey: //NSLeftArrowFunctionKey: [self moveCursorLeft:self]; return; case NSRightArrowFunctionKey: //NSRightArrowFunctionKey: [self moveCursorRight:self]; return; case NSBackspaceKey: // backspace [self deleteRange:[self selectedRange] backspace:YES]; return; #if 1 case 0x6d: // end-key: debugging: enforce complete re-layout [lineLayoutInformation autorelease]; lineLayoutInformation=nil; [self rebuildLineLayoutInformationStartingAtLine:0]; [self setNeedsDisplay:YES]; return; #endif #if 1 case 0x45: // num-lock: debugging NSLog([lineLayoutInformation description]); return; #endif case NSCarriageReturnKey: // return if([self isFieldEditor]) //textShouldEndEditing delegation is handled in resignFirstResponder { NSLog(@"isFieldEditor return\n"); #if 0 // Movement codes for movement between fields; these codes are the intValue of the NSTextMovement key in NSTextDidEndEditing notifications [NSNumber numberWithInt:NSIllegalTextMovement] [NSNumber numberWithInt:NSReturnTextMovement] [NSNumber numberWithInt:NSTabTextMovement] [NSNumber numberWithInt:NSBacktabTextMovement] [NSNumber numberWithInt:NSLeftTextMovement] [NSNumber numberWithInt:NSRightTextMovement] [NSNumber numberWithInt:NSUpTextMovement] [NSNumber numberWithInt:NSDownTextMovement] #endif [[self window] makeFirstResponder:[self nextResponder]]; [self textDidEndEditing:[NSNotification notificationWithName:NSTextDidEndEditingNotification object:self userInfo:[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:NSReturnTextMovement],@"NSTextMovement",nil]]]; } else { NSLog(@"\bCarriage return.\b\n"); [self insertText:[[self class] newlineString]]; return; } break; } #if 0 NSLog(@"keycode:%x",keyCode); #endif { // else [self insertText:[theEvent characters]]; } } -(BOOL) acceptsFirstResponder { if ([self isSelectable]) return YES; else return NO; } -(BOOL) resignFirstResponder { if([self shouldDrawInsertionPoint]) { [self lockFocus]; [self drawInsertionPointAtIndex:[self selectedRange].location color:nil turnedOn:NO]; [self unlockFocus]; // stop timed entry } if([self isEditable]) return [self textShouldEndEditing:(NSText*)self]; return YES; } -(BOOL) becomeFirstResponder { if([self shouldDrawInsertionPoint]) { // [self lockFocus]; [self drawInsertionPointAtIndex:[self selectedRange].location color:[NSColor blackColor] turnedOn:YES]; // [self unlockFocus]; // restart timed entry } if([self isEditable] && [self textShouldBeginEditing:(NSText*)self]) return YES; else return NO; } // // Managing the Delegate // - delegate { return delegate; } -(void) setDelegate:anObject { NSNotificationCenter *nc = [NSNotificationCenter defaultCenter]; if (delegate) [nc removeObserver: delegate name: nil object: self]; ASSIGN(delegate, anObject); // delegate = anObject; #define SET_DELEGATE_NOTIFICATION(notif_name) \ if ([delegate respondsToSelector: @selector(text##notif_name:)]) \ [nc addObserver: delegate \ selector: @selector(text##notif_name:) \ name: NSText##notif_name##Notification \ object: self] SET_DELEGATE_NOTIFICATION(DidBeginEditing); SET_DELEGATE_NOTIFICATION(DidChange); SET_DELEGATE_NOTIFICATION(DidEndEditing); } // // Implemented by the Delegate // -(void) textDidBeginEditing:(NSNotification *)aNotification { if ([delegate respondsToSelector:@selector(textDidBeginEditing:)]) [delegate textDidBeginEditing:aNotification? aNotification:[NSNotification notificationWithName:NSTextDidBeginEditingNotification object:self]]; [[NSNotificationCenter defaultCenter] postNotificationName:NSTextDidBeginEditingNotification object:self]; } - (void)textDidChange:(NSNotification *)aNotification { if ([delegate respondsToSelector:@selector(textDidChange:)]) [delegate textDidChange:aNotification? aNotification:[NSNotification notificationWithName:NSTextDidChangeNotification object:self]]; [[NSNotificationCenter defaultCenter] postNotificationName:NSTextDidChangeNotification object:self]; } -(void)textDidEndEditing:(NSNotification *)aNotification { if ([delegate respondsToSelector:@selector(textDidEndEditing:)]) [delegate textDidEndEditing:aNotification? aNotification:[NSNotification notificationWithName:NSTextDidEndEditingNotification object:self]]; [[NSNotificationCenter defaultCenter] postNotificationName:NSTextDidEndEditingNotification object:self]; } -(BOOL) textShouldBeginEditing:(NSText *)textObject { if ([delegate respondsToSelector:@selector(textShouldBeginEditing:)]) return [delegate textShouldBeginEditing:(NSText*)self]; else return YES; } -(BOOL) textShouldEndEditing:(NSText *)textObject { if ([delegate respondsToSelector:@selector(textShouldEndEditing:)]) return [delegate textShouldEndEditing:(NSText*)self]; else return YES; } -(NSRange) characterRangeForBoundingRect:(NSRect)boundsRect { NSRange lineRange=[self lineRangeForRect:boundsRect]; if(lineRange.length) return MakeRangeFromAbs([[lineLayoutInformation objectAtIndex:lineRange.location] lineRange].location, NSMaxRange([[lineLayoutInformation objectAtIndex:NSMaxRange(lineRange)] lineRange])); else return NSMakeRange(0,0); } -(unsigned) characterIndexForPoint:(NSPoint)point { int i; NSEnumerator *lineEnum; _GNULineLayoutInfo *currentInfo; NSDictionary *attributes=[self defaultTypingAttributes]; if(point.y >= NSMaxY([[lineLayoutInformation lastObject] lineRect])) return [self textLength]; point.x=MAX(0,point.x); point.y=MAX(0,point.y); for(i=0,(lineEnum=[lineLayoutInformation objectEnumerator]);(currentInfo=[lineEnum nextObject]);i++) { NSRect rect=[currentInfo lineRect]; if(NSMaxY(rect)>=point.y && rect.origin.y= NSMaxX(rect) ) return NSMaxRange([currentInfo lineRange]); if(NSPointInRect(point,rect)) // this loop holds some optimization potential (linear search) { int retPos=0; NSRange range=[currentInfo lineRange]; for(retPos=range.location; retPos<=NSMaxRange(range); retPos++) // this loop holds some optimization potential (linear search) { NSString *evalString=nil; if([self isRichText]) { if([rtfContent sizeRange:NSMakeRange(range.location,retPos-range.location)].width >= point.x) return MAX(0,retPos-1); } else { evalString=[plainContent substringWithRange:NSMakeRange(range.location,retPos-range.location)]; if([evalString sizeWithAttributes:attributes].width >= point.x) return MAX(0,retPos-1); } } return range.location; } } NSLog(@"NSText's characterIndexForPoint: index not found!"); return 0; } // rect to the end of line -(NSRect) rectForCharacterIndex:(unsigned) index { int i; NSEnumerator *lineEnum; _GNULineLayoutInfo *currentInfo; NSDictionary *attributes=[self defaultTypingAttributes]; if(![lineLayoutInformation count]) return NSMakeRect(0,0,[self frame].size.width,[[[self class] newlineString] sizeWithAttributes:attributes].height); if(index >= NSMaxRange([[lineLayoutInformation lastObject] lineRange])) { NSRect rect=[[lineLayoutInformation lastObject] lineRect]; if(NSMaxX(rect)>= [self frame].size.width) { return NSMakeRect(0, NSMaxY(rect),[self frame].size.width,rect.size.height); } return NSMakeRect(NSMaxX(rect), rect.origin.y,[self frame].size.width-NSMaxX(rect),rect.size.height); } for(i=0,(lineEnum=[lineLayoutInformation objectEnumerator]);(currentInfo=[lineEnum nextObject]);i++) { NSRange range=[currentInfo lineRange]; if(NSLocationInRange(index,range)) { NSRect rect=[currentInfo lineRect]; if([self isRichText]) { NSSize stringSize=[rtfContent sizeRange:MakeRangeFromAbs(range.location,index)]; float x=rect.origin.x+stringSize.width; return NSMakeRect(x,rect.origin.y,NSMaxX(rect)-x,rect.size.height); } else { NSString *evalString=[plainContent substringWithRange:MakeRangeFromAbs(range.location,index)]; NSSize stringSize=[evalString sizeWithAttributes:attributes]; float x=rect.origin.x+stringSize.width; return NSMakeRect(x,rect.origin.y,NSMaxX(rect)-x,rect.size.height); } } } NSLog(@"NSText's rectForCharacterIndex: rect not found!"); return NSZeroRect; } -(unsigned) lineLayoutIndexForPoint:(NSPoint)point { int i; NSEnumerator *lineEnum; _GNULineLayoutInfo *currentInfo; NSDictionary *attributes=[self defaultTypingAttributes]; if(point.y >= NSMaxY([[lineLayoutInformation lastObject] lineRect])) return [lineLayoutInformation count]-1; point.x=MAX(0,point.x); point.y=MAX(0,point.y); for(i=0,(lineEnum=[lineLayoutInformation objectEnumerator]); (currentInfo=[lineEnum nextObject]);i++) { NSRect rect=[currentInfo lineRect]; if(NSMaxY(rect)> point.y && rect.origin.y<= point.y && rect.origin.x< point.x && point.x >= NSMaxX(rect) ) return [lineLayoutInformation indexOfObject:currentInfo]; if(NSPointInRect(point,rect)) // this loop holds some optimization potential (linear search) { int retPos=0; NSRange range=[currentInfo lineRange]; for(retPos=range.location; retPos<=NSMaxRange(range); retPos++) // this loop holds some optimization potential (linear search) { NSString *evalString=nil; if([self isRichText]) { if([rtfContent sizeRange:NSMakeRange(range.location,retPos-range.location)].width >= point.x) return [lineLayoutInformation indexOfObject:currentInfo]; } else { evalString=[plainContent substringWithRange:NSMakeRange(range.location,retPos-range.location)]; if([evalString sizeWithAttributes:attributes].width >= point.x) return [lineLayoutInformation indexOfObject:currentInfo]; } } return [lineLayoutInformation indexOfObject:currentInfo]; } } return 0; } // internal method range is currently not passed as absolute -(void) addNewlines:(NSRange) aRange intoLayoutArray:(NSMutableArray*) anArray attributes:(NSDictionary*) attributes atPoint:(NSPoint*) aPointP width:(float) width characterIndex:(unsigned) startingLineCharIndex ghostEnumerator:(_GNUSeekableArrayEnumerator*) prevArrayEnum didShift:(BOOL*) didShift verticalDisplacement:(float*) verticalDisplacement { NSSize advanceSize=[[[self class] newlineString] sizeWithAttributes:attributes]; int count=aRange.length,charIndex; _GNULineLayoutInfo *thisInfo,*ghostInfo=nil; BOOL isRich=[self isRichText]; (*didShift)=NO; for(charIndex=aRange.location;--count>=0;charIndex++) { NSRect currentLineRect; if(0&& isRich) { advanceSize=[rtfContent sizeRange:NSMakeRange(startingLineCharIndex,1)]; } currentLineRect=NSMakeRect(aPointP->x,aPointP->y,width-aPointP->x,advanceSize.height); [anArray addObject:thisInfo=[_GNULineLayoutInfo lineLayoutWithRange: NSMakeRange(startingLineCharIndex,1) rect:currentLineRect drawingOffset:0 type:LineLayoutInfoType_Paragraph]]; startingLineCharIndex++; aPointP->x=0; aPointP->y+= advanceSize.height; if(prevArrayEnum && !(ghostInfo=[prevArrayEnum nextObject])) prevArrayEnum=nil; if(ghostInfo && ([thisInfo type] != [ghostInfo type])) { _GNULineLayoutInfo *prevInfo=[prevArrayEnum previousObject]; prevArrayEnum=nil; (*didShift)=YES; (*verticalDisplacement)+=aPointP->y-[prevInfo lineRect].origin.y; } } } // private helper function static unsigned _relocLayoutArray(NSMutableArray *lineLayoutInformation,NSArray *ghostArray,int aLine,int relocOffset,int rebuildLineDrift,float yReloc) { unsigned ret=[lineLayoutInformation count]-aLine; // lines actually updated (optimized drawing) NSArray *relocArray=[ghostArray subarrayWithRange:MakeRangeFromAbs(MAX(0,ret+rebuildLineDrift),[ghostArray count])]; NSEnumerator *relocEnum; _GNULineLayoutInfo *currReloc; if(![relocArray count]) return ret; for((relocEnum=[relocArray objectEnumerator]); (currReloc=[relocEnum nextObject]);) { NSRange range=[currReloc lineRange]; [currReloc setLineRange:NSMakeRange(range.location+relocOffset,range.length)]; if(yReloc) { NSRect rect=[currReloc lineRect]; [currReloc setLineRect:NSMakeRect(rect.origin.x,rect.origin.y+yReloc,rect.size.width,rect.size.height)]; } } [lineLayoutInformation addObjectsFromArray:relocArray]; return ret; } // begin: central line formatting method --------------------------------------- // returns count of lines actually updated // detachNewThreadSelector:selector toTarget:target withObject:argument; -(int) rebuildLineLayoutInformationStartingAtLine:(int) aLine delta:(int) insertionDelta actualLine:(int) insertionLineIndex { NSDictionary *attributes=[self defaultTypingAttributes]; NSPoint drawingPoint=NSZeroPoint; _GNUTextScanner *parscanner; float width=[self frame].size.width; unsigned startingIndex=0,currentLineIndex; _GNULineLayoutInfo *lastValidLineInfo=nil; NSArray *ghostArray=nil; // for optimization detection _GNUSeekableArrayEnumerator *prevArrayEnum=nil; NSCharacterSet *invSelectionWordGranularitySet=[selectionWordGranularitySet invertedSet]; NSCharacterSet *invSelectionParagraphGranularitySet=[selectionParagraphGranularitySet invertedSet]; NSString *parsedString; BOOL isHorizontallyResizable=[self isHorizontallyResizable]; int lineDriftOffset=0,rebuildLineDrift=0; BOOL frameshiftCorrection=NO,nlDidShift=NO,enforceOpti=NO; float yDisplacement=0; BOOL isRich=[self isRichText]; if(!lineLayoutInformation) lineLayoutInformation=[[NSMutableArray alloc] init]; else { ghostArray=[lineLayoutInformation subarrayWithRange:NSMakeRange(aLine,[lineLayoutInformation count]-aLine)]; // remember old array for optimization purposes prevArrayEnum=[ghostArray seekableEnumerator]; // every time an object is added to lineLayoutInformation a nextObject has to be performed on prevArrayEnum! } if(aLine) { lastValidLineInfo=[lineLayoutInformation objectAtIndex: aLine-1]; drawingPoint=[lastValidLineInfo lineRect].origin; drawingPoint.y+=[lastValidLineInfo lineRect].size.height; startingIndex=NSMaxRange([lastValidLineInfo lineRange]); } if([lastValidLineInfo type]== LineLayoutInfoType_Paragraph) { drawingPoint.x=0; } if((((int)[lineLayoutInformation count])-1) >= aLine) // keep paragraph-terminating space on same line as paragraph { _GNULineLayoutInfo *anchorLine=[lineLayoutInformation objectAtIndex:aLine]; NSRect anchorRect=[anchorLine lineRect]; if(anchorRect.origin.x> drawingPoint.x && [lastValidLineInfo lineRect].origin.y == anchorRect.origin.y) { drawingPoint= anchorRect.origin; } } [lineLayoutInformation removeObjectsInRange:NSMakeRange(aLine,[lineLayoutInformation count]-aLine)]; currentLineIndex=aLine; // each paragraph for(parscanner=[_GNUTextScanner scannerWithString:parsedString=[[self string] substringFromIndex:startingIndex] set:selectionParagraphGranularitySet invertedSet:invSelectionParagraphGranularitySet]; ![parscanner isAtEnd];) { _GNUTextScanner *linescanner; NSString *paragraph; NSRange paragraphRange,leadingNlRange,trailingNlRange; unsigned startingParagraphIndex=[parscanner scanLocation]+startingIndex,startingLineCharIndex=startingParagraphIndex; BOOL isBuckled=NO,inBuckling=NO; leadingNlRange=[parscanner scanSetCharacters]; if(leadingNlRange.length) // add the leading newlines of current paragraph if any (only the first time) { [self addNewlines:leadingNlRange intoLayoutArray:lineLayoutInformation attributes:attributes atPoint:&drawingPoint width:width characterIndex:startingLineCharIndex ghostEnumerator:prevArrayEnum didShift:&nlDidShift verticalDisplacement:&yDisplacement]; if(nlDidShift) { if(insertionDelta == 1) { frameshiftCorrection=YES; rebuildLineDrift--; } else if(insertionDelta == -1) { frameshiftCorrection=YES; rebuildLineDrift++; } else nlDidShift=NO; } startingLineCharIndex+=leadingNlRange.length; currentLineIndex+=leadingNlRange.length; } paragraphRange=[parscanner scanNonSetCharacters]; trailingNlRange=[parscanner scanSetCharacters]; // each line for(linescanner=[_GNUTextScanner scannerWithString:paragraph=[parsedString substringWithRange:paragraphRange] set:selectionWordGranularitySet invertedSet:invSelectionWordGranularitySet]; ![linescanner isAtEnd];) { NSRect currentLineRect=NSMakeRect(0,drawingPoint.y,0,0); unsigned localLineStartIndex=[linescanner scanLocation]; // starts with zero, do not confuse with startingLineCharIndex NSSize advanceSize=NSZeroSize; // scan the individual words to the end of the line for(;![linescanner isAtEnd]; drawingPoint.x+=advanceSize.width) { NSRange currentStringRange,trailingSpacesRange,leadingSpacesRange; unsigned scannerPosition=[linescanner scanLocation]; // snack next word leadingSpacesRange= [linescanner scanSetCharacters]; // leading spaces: only first time currentStringRange= [linescanner scanNonSetCharacters]; trailingSpacesRange=[linescanner scanSetCharacters]; if (leadingSpacesRange.length) currentStringRange=NSUnionRange (leadingSpacesRange,currentStringRange); if(trailingSpacesRange.length) currentStringRange=NSUnionRange(trailingSpacesRange,currentStringRange); // evaluate size of current word and line so far if(isRich) advanceSize=[rtfContent sizeRange:NSMakeRange(currentStringRange.location+paragraphRange.location+startingIndex,currentStringRange.length)]; else advanceSize=[[paragraph substringWithRange:currentStringRange] sizeWithAttributes:attributes]; currentLineRect=NSUnionRect(currentLineRect,NSMakeRect(drawingPoint.x,drawingPoint.y, advanceSize.width, advanceSize.height)); // handle case where single word is broader than width (buckle word) unfinished and untested for richText (absolute position see above) if(!isHorizontallyResizable && advanceSize.width >= width) { if(isBuckled) { NSSize currentSize=NSMakeSize(HUGE,0); unsigned lastVisibleCharIndex; for(lastVisibleCharIndex=startingLineCharIndex+currentStringRange.length; currentSize.width>= width && lastVisibleCharIndex> startingLineCharIndex; lastVisibleCharIndex--) { if(isRich) { currentSize=[rtfContent sizeRange:MakeRangeFromAbs(startingLineCharIndex,lastVisibleCharIndex)]; } else { NSString *evalString=[plainContent substringWithRange:MakeRangeFromAbs(startingLineCharIndex,lastVisibleCharIndex)]; currentSize=[evalString sizeWithAttributes:attributes]; } } isBuckled=NO; inBuckling=YES; scannerPosition=localLineStartIndex+(lastVisibleCharIndex-startingLineCharIndex); currentLineRect.size.width=advanceSize.width=width; } else // undo layout of extralarge word (will be done the next line [see above]) { isBuckled=YES; currentLineRect.size.width-=advanceSize.width; } } // end of line-> word wrap if(!isHorizontallyResizable && (currentLineRect.size.width >= width || isBuckled)) // >= :wichtig för abknicken (isBuckled) { _GNULineLayoutInfo *ghostInfo=nil,*thisInfo; [linescanner setScanLocation:scannerPosition]; // undo layout of last word currentLineRect.origin.x=0; currentLineRect.origin.y=drawingPoint.y; drawingPoint.y+= currentLineRect.size.height; drawingPoint.x=0; [lineLayoutInformation addObject:thisInfo=[_GNULineLayoutInfo lineLayoutWithRange: NSMakeRange(startingLineCharIndex,scannerPosition-localLineStartIndex) rect:currentLineRect drawingOffset:0 type:LineLayoutInfoType_Text]]; currentLineIndex++; startingLineCharIndex=NSMaxRange([thisInfo lineRange]); if(prevArrayEnum && !(ghostInfo=[prevArrayEnum nextObject])) prevArrayEnum=nil; // optimization stuff (do relayout only as much lines as necessary and patch the rest) --------- if(ghostInfo) { if([ghostInfo type] != [thisInfo type]) // frameshift correction { frameshiftCorrection=YES; if(insertionDelta == -1) // deletition of newline { _GNULineLayoutInfo *nextObject; if(!(nextObject=[prevArrayEnum nextObject])) prevArrayEnum=nil; else { if(nlDidShift && frameshiftCorrection) {// frameshiftCorrection=NO; #if 0 NSLog(@"opti hook 1 (preferred)"); #endif } else { lineDriftOffset+=([thisInfo lineRange].length-[ghostInfo lineRange].length-[nextObject lineRange].length); yDisplacement+=[thisInfo lineRect].origin.y-[nextObject lineRect].origin.y; rebuildLineDrift++; } } } } else lineDriftOffset+=([thisInfo lineRange].length-[ghostInfo lineRange].length); // is it possible to simply patch layout changes into layout array instead of doing a time consuming re-layout of the whole doc? if((currentLineIndex-1 > insertionLineIndex && !inBuckling && !isBuckled) && (!(lineDriftOffset-insertionDelta) || (nlDidShift && !lineDriftOffset) || enforceOpti)) { unsigned erg=_relocLayoutArray(lineLayoutInformation,ghostArray,aLine,insertionDelta, rebuildLineDrift, yDisplacement); if(frameshiftCorrection) erg=[lineLayoutInformation count]-aLine; // y displacement: redisplay all remaining lines else if(currentLineIndex-1 == insertionLineIndex && ABS(insertionDelta)== 1) { erg=2; // return 2: redisplay only this and previous line } #if 1 NSLog(@"opti for:%d",erg); #endif return erg; } } // end: optimization stuff------------------------------------------------------------------------- break; // newline-induced premature lineending: flush } else if([linescanner isAtEnd]) { _GNULineLayoutInfo *thisInfo; scannerPosition=[linescanner scanLocation]; [lineLayoutInformation addObject:thisInfo=[_GNULineLayoutInfo lineLayoutWithRange: NSMakeRange(startingLineCharIndex,scannerPosition-localLineStartIndex) rect:currentLineRect drawingOffset:0 type:LineLayoutInfoType_Text]]; currentLineIndex++; startingLineCharIndex=NSMaxRange([thisInfo lineRange]); // check for optimization (lines after paragraph are unchanged and do not need redisplay/relayout)------ if(prevArrayEnum) { _GNULineLayoutInfo *ghostInfo=nil; ghostInfo=[prevArrayEnum nextObject]; if(ghostInfo) { if([ghostInfo type] != [thisInfo type]) // frameshift correction for inserted newline { frameshiftCorrection=YES; if(insertionDelta == 1) { [prevArrayEnum previousObject]; lineDriftOffset+=([thisInfo lineRange].length-[ghostInfo lineRange].length)+insertionDelta; rebuildLineDrift--; yDisplacement+= [thisInfo lineRect].origin.y-[ghostInfo lineRect].origin.y; } else if(insertionDelta == -1) { if(nlDidShift && frameshiftCorrection) {// frameshiftCorrection=NO; #if 0 NSLog(@"opti hook 2"); #endif } } } else lineDriftOffset+=([thisInfo lineRange].length-[ghostInfo lineRange].length); } else {prevArrayEnum=nil;} // new array obviously longer than the previous one // end: optimization stuff------------------------------------------------------------------------- } } } } if(trailingNlRange.length) // add the trailing newlines of current paragraph if any { [self addNewlines:trailingNlRange intoLayoutArray:lineLayoutInformation attributes:attributes atPoint:&drawingPoint width:width characterIndex:startingLineCharIndex ghostEnumerator:prevArrayEnum didShift:&nlDidShift verticalDisplacement:&yDisplacement]; if(nlDidShift) { if(insertionDelta == 1) { frameshiftCorrection=YES; rebuildLineDrift--; } else if(insertionDelta == -1) { frameshiftCorrection=YES; rebuildLineDrift++; } else nlDidShift=NO; } currentLineIndex+=trailingNlRange.length; } } return [lineLayoutInformation count]-aLine; // lines actually updated (optimized drawing) } // end: central line formatting method ------------------------------------ -(int) rebuildLineLayoutInformationStartingAtLine:(int) aLine { return [self rebuildLineLayoutInformationStartingAtLine:aLine delta:0 actualLine:0]; } // relies on lineLayoutInformation -(void) drawPlainLinesInLineRange:(NSRange) aRange { if(NSMaxRange(aRange) > MAX(0,[lineLayoutInformation count]-1)) // lay out lines before drawing them { [self rebuildLineLayoutInformationStartingAtLine:MAX(0,[lineLayoutInformation count]-1)]; } { NSArray *linesToDraw=[lineLayoutInformation subarrayWithRange:aRange]; NSEnumerator *lineEnum; _GNULineLayoutInfo *currentInfo; NSDictionary *attributes=[self defaultTypingAttributes]; for((lineEnum=[linesToDraw objectEnumerator]);(currentInfo=[lineEnum nextObject]);) { if([currentInfo isDontDisplay] || [currentInfo type]== LineLayoutInfoType_Paragraph) continue; // e.g. for nl [[plainContent substringWithRange:[currentInfo lineRange]] drawAtPoint:[currentInfo lineRect].origin withAttributes:attributes]; // make this use drawInRect:withAttributes: in the future (for proper adoption of layout information [e.g. centering]) } } } -(void) drawRichLinesInLineRange:(NSRange) aRange { if(NSMaxRange(aRange) > [lineLayoutInformation count]-1) // lay out lines before drawing them { [self rebuildLineLayoutInformationStartingAtLine:[lineLayoutInformation count]-1]; } { NSArray *linesToDraw=[lineLayoutInformation subarrayWithRange:aRange]; NSEnumerator *lineEnum; _GNULineLayoutInfo *currentInfo; for((lineEnum=[linesToDraw objectEnumerator]);(currentInfo=[lineEnum nextObject]);) { if([currentInfo isDontDisplay] || [currentInfo type] == LineLayoutInfoType_Paragraph) continue; // e.g. for nl [rtfContent drawRange:[currentInfo lineRange] atPoint:[currentInfo lineRect].origin]; // make this use drawRange: inRect: in the future (for proper adoption of layout information [e.g. centering]) } } } -(NSRange) lineRangeForRect:(NSRect) rect { NSPoint upperLeftPoint=rect.origin, lowerRightPoint=NSMakePoint(NSMaxX(rect),NSMaxY(rect)); NSRange myTest; unsigned startLine,endLine; startLine=[self lineLayoutIndexForPoint:upperLeftPoint], endLine=[self lineLayoutIndexForPoint:lowerRightPoint]; //FIXME return MakeRangeFromAbs(startLine,endLine+1); if ([plainContent length] != 0) { myTest = MakeRangeFromAbs(startLine,endLine+1); NSLog(@"myTest: length = %d, location = %d\n", (int)myTest.length, (int)myTest.location); return myTest; } else { myTest = MakeRangeFromAbs(startLine,endLine); NSLog(@"myTest: length = %d, location = %d\n", (int)myTest.length, (int)myTest.location); return myTest; } } -(void) drawRectNoSelection:(NSRect)rect { NSRange redrawLineRange; if(![lineLayoutInformation count]) // bootstrap layout information for [self lineLayoutIndexForCharacterIndex:anIndex] to work initially { [self rebuildLineLayoutInformationStartingAtLine:0]; } redrawLineRange=[self lineRangeForRect:rect]; NSLog(@"should be drawing text here. No big deal.\n"); if([self drawsBackground]) // clear area under text { [[self backgroundColor] set]; NSRectFill(rect); } if([self isRichText]) { [self drawRichLinesInLineRange:redrawLineRange]; } else { [self drawPlainLinesInLineRange:redrawLineRange]; } } -(void) drawRect:(NSRect)rect { if(displayDisabled) return; [self drawRectNoSelection:rect]; [self drawSelectionAsRange:[self selectedRange]]; } // text lays out from top to bottom -(BOOL) isFlipped {return YES;} // // Copy and paste // -(void) copy:sender { NSMutableArray *types=[NSMutableArray arrayWithObjects:NSStringPboardType, nil]; NSPasteboard *pboard=[NSPasteboard generalPasteboard]; if([self isRichText]) [types addObject:NSRTFPboardType]; if([self importsGraphics]) [types addObject:NSRTFDPboardType]; [pboard declareTypes:types owner:self]; [pboard setString:[[self string] substringWithRange:[self selectedRange]] forType:NSStringPboardType]; if([self isRichText]) [pboard setData:[self RTFFromRange:[self selectedRange]] forType:NSRTFPboardType]; if([self importsGraphics]) [pboard setData:[self RTFDFromRange:[self selectedRange]] forType:NSRTFDPboardType]; } // -(void) copyFont:sender { } // -(void) copyRuler:sender { } -(void) delete:sender { [self deleteRange:[self selectedRange] backspace:NO]; } -(void) cut:sender { if([self selectedRange].length) { [self copy:self]; [self delete:self]; } } -(void) paste:sender { [self performPasteOperation:[NSPasteboard generalPasteboard]]; } -(void) pasteFont:sender { [self performPasteOperation:[NSPasteboard pasteboardWithName:NSFontPboard]]; } -(void) pasteRuler:sender { [self performPasteOperation:[NSPasteboard pasteboardWithName:NSRulerPboard]]; } // // NSCoding protocol // - (void)encodeWithCoder:aCoder { [super encodeWithCoder:aCoder]; [aCoder encodeConditionalObject:delegate]; [aCoder encodeObject: plainContent]; [aCoder encodeObject: rtfContent]; [aCoder encodeValueOfObjCType: "I" at: &alignment]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &is_editable]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &is_rich_text]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &is_selectable]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &imports_graphics]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &uses_font_panel]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &is_horizontally_resizable]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &is_vertically_resizable]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &is_ruler_visible]; [aCoder encodeValueOfObjCType: @encode(BOOL) at: &is_field_editor]; [aCoder encodeObject: background_color]; [aCoder encodeObject: text_color]; [aCoder encodeObject: default_font]; [aCoder encodeValueOfObjCType: @encode(NSRange) at: &selected_range]; } - initWithCoder:aDecoder { [super initWithCoder:aDecoder]; delegate = [aDecoder decodeObject]; plainContent= [aDecoder decodeObject]; rtfContent= [aDecoder decodeObject]; [aDecoder decodeValueOfObjCType: "I" at: &alignment]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &is_editable]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &is_rich_text]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &is_selectable]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &imports_graphics]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &uses_font_panel]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &is_horizontally_resizable]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &is_vertically_resizable]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &is_ruler_visible]; [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &is_field_editor]; background_color = [aDecoder decodeObject]; text_color = [aDecoder decodeObject]; default_font=[aDecoder decodeObject]; [aDecoder decodeValueOfObjCType: @encode(NSRange) at: &selected_range]; return self; } // // Spelling // -(void) checkSpelling:sender { NSRange errorRange=[[NSSpellChecker sharedSpellChecker] checkSpellingOfString:[self string] startingAt:NSMaxRange([self selectedRange])]; if(errorRange.length) [self setSelectedRange:errorRange]; else NSBeep(); } -(void) showGuessPanel:sender { [[[NSSpellChecker sharedSpellChecker] spellingPanel] orderFront:self]; } // // NSChangeSpelling protocol // -(void) changeSpelling:sender { [self insertText:[[(NSControl*)sender selectedCell] stringValue]]; } -(int) spellCheckerDocumentTag { if(!spellCheckerDocumentTag) spellCheckerDocumentTag=[NSSpellChecker uniqueSpellDocumentTag]; return spellCheckerDocumentTag; } // // NSIgnoreMisspelledWords protocol // -(void) ignoreSpelling:sender { [[NSSpellChecker sharedSpellChecker] ignoreWord:[[(NSControl*)sender selectedCell] stringValue] inSpellDocumentWithTag:[self spellCheckerDocumentTag]]; } @end