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Extended support for RTF
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@6697 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Fred Kiefer
parent
69214d4cbe
commit
474b1eec6b
1 changed files with 329 additions and 129 deletions
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@ -4,6 +4,8 @@
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Author: Stefan Bðhringer (stefan.boehringer@uni-bochum.de)
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Date: Dec 1999
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Author: Fred Kiefer <FredKiefer@gmx.de>
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Date: June 2000
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This file is part of the GNUstep GUI Library.
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@ -23,9 +25,10 @@
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#import <Foundation/Foundation.h>
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#import <AppKit/AppKit.h>
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#import "Parsers/rtfConsumer.h"
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#include <Foundation/Foundation.h>
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#include <AppKit/AppKit.h>
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#include "Parsers/rtfConsumer.h"
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#include "Parsers/rtfConsumerFunctions.h"
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/* we have to satisfy the scanner with a stream reading function */
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typedef struct {
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@ -53,54 +56,77 @@ readNSString(StringContext *ctxt)
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we must implement from the rtfConsumerSkeleton.h file (Supporting files)
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this includes the yacc error handling and output
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*/
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#define GSfontDictName @"fonts"
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#define GScurrentTextPosition @"textPosition"
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#define GSresultName @"result"
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#define GSchanged @"changed"
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#define GSparagraph @"paragraph"
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#define GSfontName @"fontName"
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#define GSfontSize @"fontSize"
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#define GSbold @"bold"
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#define GSitalic @"italic"
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#define GSunderline @"underline"
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#define GSscript @"script"
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#define GSdocumentAttributes @"documentAttributes"
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#define CTXT ((NSMutableDictionary *)ctxt)
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#define FONTS [CTXT objectForKey: GSfontDictName]
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#define RESULT [CTXT objectForKey: GSresultName]
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#define CHANGED [[CTXT objectForKey: GSchanged] boolValue]
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#define SETCHANGED(flag) [CTXT setObject: [NSNumber numberWithBool: flag] forKey: GSchanged]
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#define PARAGRAPH [CTXT objectForKey: GSparagraph]
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#define halfpoints2points(a) ((a)/2.0)
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// FIXME: How to convert twips to points???
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#define twips2points(a) ((a)/500.0)
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static int textPosition(void *ctxt)
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// Hold the attributs of the current run
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@interface RTFAttribute: NSObject <NSCopying>
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{
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return [[CTXT objectForKey: GScurrentTextPosition] intValue];
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@public
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BOOL changed;
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NSParagraphStyle *paragraph;
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NSColor *fgColour;
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NSColor *bgColour;
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NSString *fontName;
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float fontSize;
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BOOL bold;
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BOOL italic;
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BOOL underline;
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int script;
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}
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static NSFont *currentFont(void *ctxt)
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- (NSFont*) currentFont;
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@end
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@implementation RTFAttribute
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- (id) init
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{
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NSFont *font = [NSFont userFontOfSize:12];
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ASSIGN(fontName, [font familyName]);
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fontSize = 12.0;
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italic = NO;
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bold = NO;
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underline = NO;
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script = 0;
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paragraph = [NSMutableParagraphStyle defaultParagraphStyle];
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changed = YES;
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return self;
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}
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- (void) dealloc
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{
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RELEASE(paragraph);
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RELEASE(fontName);
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RELEASE(fgColour);
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RELEASE(bgColour);
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[super dealloc];
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}
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- (id) copyWithZone: (NSZone*)zone
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{
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RTFAttribute *new = [isa allocWithZone: zone];
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new->paragraph = [paragraph copyWithZone: zone];
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new->fontName = [fontName copyWithZone: zone];
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new->fontSize = fontSize;
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new->italic = italic;
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new->bold = bold;
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new->underline = underline;
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new->script = script;
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new->changed = NO;
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return new;
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}
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- (NSFont*) currentFont
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{
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NSFont *font;
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BOOL boldOn;
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BOOL italicOn;
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NSString *name;
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float size;
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NSFontTraitMask traits = 0;
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int weight;
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name = [CTXT objectForKey: GSfontName];
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size = [[CTXT objectForKey: GSfontSize] floatValue];
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boldOn = [[CTXT objectForKey: GSbold] boolValue];
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italicOn = [[CTXT objectForKey: GSitalic] boolValue];
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if (boldOn)
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if (bold)
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{
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weight = 9;
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traits |= NSBoldFontMask;
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@ -111,7 +137,7 @@ static NSFont *currentFont(void *ctxt)
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traits |= NSUnboldFontMask;
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}
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if (italicOn)
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if (italic)
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{
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traits |= NSItalicFontMask;
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}
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@ -120,12 +146,147 @@ static NSFont *currentFont(void *ctxt)
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traits |= NSUnitalicFontMask;
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}
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font = [[NSFontManager sharedFontManager] fontWithFamily: name
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font = [[NSFontManager sharedFontManager] fontWithFamily: fontName
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traits: traits
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weight: weight
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size: size];
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size: fontSize];
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return font;
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}
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@end
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@interface RTFConsumer: NSObject
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{
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@public
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NSMutableDictionary *documentAttributes;
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NSMutableDictionary *fonts;
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NSMutableArray *colours;
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NSMutableArray *attrs;
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NSMutableAttributedString *result;
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int textPosition;
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int ignore;
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}
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- (NSDictionary*) documentAttributes;
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- (RTFAttribute*) attr;
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- (void) push;
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- (void) pop;
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- (NSAttributedString*) result;
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@end
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@implementation RTFConsumer
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- (id) init
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{
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RTFAttribute *attr = [RTFAttribute new];
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textPosition = 0;
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ignore = 0;
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result = [[NSMutableAttributedString alloc] init];
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ASSIGN(documentAttributes, [NSMutableDictionary dictionary]);
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ASSIGN(fonts, [NSMutableDictionary dictionary]);
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ASSIGN(attrs, [NSMutableArray array]);
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ASSIGN(colours, [NSMutableArray array]);
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[attrs addObject: attr];
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return self;
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}
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- (void)dealloc
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{
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RELEASE(fonts);
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RELEASE(attrs);
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RELEASE(colours);
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RELEASE(result);
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RELEASE(documentAttributes);
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[super dealloc];
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}
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- (NSDictionary*) documentAttributes
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{
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RETAIN(documentAttributes);
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return AUTORELEASE(documentAttributes);
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}
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- (RTFAttribute*) attr
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{
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return [attrs lastObject];
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}
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- (void) push
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{
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[attrs addObject: [[attrs lastObject] copy]];
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}
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- (void) pop
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{
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[attrs removeLastObject];
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}
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- (NSAttributedString*) result
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{
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RETAIN(result);
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return AUTORELEASE(result);
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}
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- (NSAttributedString*) parseRTF: (NSData *)rtfData
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documentAttributes: (NSDictionary **)dict
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{
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CREATE_AUTORELEASE_POOL(pool);
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RTFscannerCtxt scanner;
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StringContext stringCtxt;
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NSString *rtfString = [[NSString alloc]
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initWithData: rtfData
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encoding: NSASCIIStringEncoding];
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// Has this RFTConsumer allready been used? Is so, reset!
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if (textPosition)
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[self init];
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initStringContext(&stringCtxt, rtfString);
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lexInitContext(&scanner, &stringCtxt, (int (*)(void*))readNSString);
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NS_DURING
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GSRTFparse((void *)self, &scanner);
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NS_HANDLER
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NSLog(@"Problem during RTF Parsing: %@",
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[localException reason]);
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//[localException raise];
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NS_ENDHANDLER
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RELEASE(pool);
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// document attributes
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if (dict)
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*dict = [self documentAttributes];
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return [self result];
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}
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@end
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#define FONTS ((RTFConsumer *)ctxt)->fonts
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#define COLOURS ((RTFConsumer *)ctxt)->colours
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#define RESULT ((RTFConsumer *)ctxt)->result
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#define IGNORE ((RTFConsumer *)ctxt)->ignore
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#define TEXTPOSITION ((RTFConsumer *)ctxt)->textPosition
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#define DOCUMENTATTRIBUTES ((RTFConsumer*)ctxt)->documentAttributes
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#define CTXT [((RTFConsumer *)ctxt) attr]
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#define CHANGED CTXT->changed
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#define PARAGRAPH CTXT->paragraph
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#define FONTNAME CTXT->fontName
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#define SCRIPT CTXT->script
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#define ITALIC CTXT->italic
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#define BOLD CTXT->bold
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#define UNDERLINE CTXT->underline
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#define FGCOLOUR CTXT->fgColour
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#define BGCOLOUR CTXT->bgColour
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#define PAPERSIZE @"PaperSize"
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#define LEFTMARGIN @"LeftMargin"
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#define RIGHTMARGIN @"RightMargin"
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#define TOPMARGIN @"TopMargin"
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#define BUTTOMMARGIN @"ButtomMargin"
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/* handle errors (this is the yacc error mech) */
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void GSRTFerror(const char *msg)
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@ -146,22 +307,6 @@ void GSRTFgenericRTFcommand(void *ctxt, RTFcmd cmd)
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//Start: we're doing some initialization
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void GSRTFstart(void *ctxt)
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{
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NSFont *font = [NSFont userFontOfSize:12];
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[CTXT setObject: [NSNumber numberWithInt:0] forKey: GScurrentTextPosition];
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[CTXT setObject: [NSMutableDictionary dictionary] forKey: GSfontDictName];
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SETCHANGED(YES);
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[CTXT setObject: [NSMutableParagraphStyle defaultParagraphStyle]
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forKey: GSparagraph];
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[CTXT setObject: [font familyName] forKey: GSfontName];
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[CTXT setObject: [NSNumber numberWithFloat: 12.0] forKey: GSfontSize];
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[CTXT setObject: [NSNumber numberWithBool: NO] forKey: GSbold];
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[CTXT setObject: [NSNumber numberWithBool: NO] forKey: GSitalic];
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[CTXT setObject: [NSNumber numberWithBool: NO] forKey: GSunderline];
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[CTXT setObject: [NSNumber numberWithInt: 0] forKey: GSscript];
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[RESULT beginEditing];
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}
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@ -172,44 +317,50 @@ void GSRTFstop(void *ctxt)
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[RESULT endEditing];
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}
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void GSRTFopenBlock(void *ctxt)
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void GSRTFopenBlock(void *ctxt, BOOL ignore)
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{
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// FIXME: Should push the current state on a stack
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if (!IGNORE)
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[(RTFConsumer *)ctxt push];
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// Switch off any output for ignored block statements
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if (ignore)
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IGNORE++;
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}
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void GSRTFcloseBlock(void *ctxt)
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void GSRTFcloseBlock(void *ctxt, BOOL ignore)
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{
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// FIXME: Should pop the current state from a stack
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if (ignore)
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IGNORE--;
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if (!IGNORE)
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[(RTFConsumer *)ctxt pop];
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}
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void GSRTFmangleText(void *ctxt, const char *text)
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{
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int oldPosition = textPosition(ctxt);
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int oldPosition = TEXTPOSITION;
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int textlen = strlen(text);
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int newPosition = oldPosition + textlen;
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NSRange insertionRange = NSMakeRange(oldPosition,0);
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NSDictionary *attributes;
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NSFont *font;
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if (textlen)
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if (!IGNORE && textlen)
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{
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[CTXT setObject:[NSNumber numberWithInt: newPosition]
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forKey: GScurrentTextPosition];
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TEXTPOSITION = newPosition;
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[RESULT replaceCharactersInRange: insertionRange
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withString: [NSString stringWithCString:text]];
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if (CHANGED)
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{
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font = currentFont(ctxt);
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font = [CTXT currentFont];
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attributes = [NSDictionary dictionaryWithObjectsAndKeys:
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font, NSFontAttributeName,
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[CTXT objectForKey: GSscript], NSSuperscriptAttributeName,
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SCRIPT, NSSuperscriptAttributeName,
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PARAGRAPH, NSParagraphStyleAttributeName,
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nil];
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[RESULT setAttributes: attributes range:
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NSMakeRange(oldPosition, textlen)];
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SETCHANGED(NO);
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CHANGED = NO;
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}
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}
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}
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@ -224,7 +375,7 @@ void GSRTFregisterFont(void *ctxt, const char *fontName,
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{
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[NSException raise:NSInvalidArgumentException
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format:@"Error in RTF (font omitted?), position:%d",
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textPosition(ctxt)];
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TEXTPOSITION];
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}
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// exclude trailing ';' from fontName
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fontNameString = [NSString stringWithCString: fontName
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@ -243,14 +394,14 @@ void GSRTFfontNumber(void *ctxt, int fontNumber)
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[NSException raise: NSInvalidArgumentException
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format: @"Error in RTF (referring to undefined font \\f%d), position:%d",
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fontNumber,
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textPosition(ctxt)];
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TEXTPOSITION];
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}
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else
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{
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if (![fontName isEqual: [CTXT objectForKey: GSfontName]])
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if (![fontName isEqual: FONTNAME])
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{
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[CTXT setObject: fontName forKey: GSfontName];
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SETCHANGED(YES);
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ASSIGN(FONTNAME, fontName);
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CHANGED = YES;
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}
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}
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}
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@ -260,28 +411,77 @@ void GSRTFfontSize(void *ctxt, int fontSize)
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{
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float size = halfpoints2points(fontSize);
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if (size != [[CTXT objectForKey: GSfontSize] floatValue])
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if (size != CTXT->fontSize)
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{
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[CTXT setObject: [NSNumber numberWithFloat: size]
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forKey: GSfontSize];
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SETCHANGED(YES);
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CTXT->fontSize = size;
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CHANGED = YES;
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}
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}
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void GSRTFpaperWidth(void *ctxt, int width)
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{
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float fwidth = twips2points(width);
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NSMutableDictionary *dict = DOCUMENTATTRIBUTES;
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NSValue *val = [dict objectForKey: PAPERSIZE];
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NSSize size;
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if (val == nil)
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size = NSMakeSize(fwidth, 792);
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else
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{
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size = [val sizeValue];
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size.width = fwidth;
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}
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[dict setObject: [NSValue valueWithSize: size] forKey: PAPERSIZE];
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}
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void GSRTFpaperHeight(void *ctxt, int height)
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{
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float fheight = twips2points(height);
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NSMutableDictionary *dict = DOCUMENTATTRIBUTES;
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NSValue *val = [dict objectForKey: PAPERSIZE];
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NSSize size;
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if (val == nil)
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size = NSMakeSize(612, fheight);
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else
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{
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size = [val sizeValue];
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size.height = fheight;
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}
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[dict setObject: [NSValue valueWithSize: size] forKey: PAPERSIZE];
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}
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void GSRTFmarginLeft(void *ctxt, int margin)
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{
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float fmargin = twips2points(margin);
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NSMutableDictionary *dict = DOCUMENTATTRIBUTES;
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[dict setObject: [NSNumber numberWithFloat: fmargin] forKey: LEFTMARGIN];
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}
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void GSRTFmarginRight(void *ctxt, int margin)
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{
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float fmargin = twips2points(margin);
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NSMutableDictionary *dict = DOCUMENTATTRIBUTES;
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[dict setObject: [NSNumber numberWithFloat: fmargin] forKey: RIGHTMARGIN];
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}
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void GSRTFmarginTop(void *ctxt, int margin)
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{
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float fmargin = twips2points(margin);
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NSMutableDictionary *dict = DOCUMENTATTRIBUTES;
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[dict setObject: [NSNumber numberWithFloat: fmargin] forKey: TOPMARGIN];
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}
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void GSRTFmarginButtom(void *ctxt, int margin)
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{
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float fmargin = twips2points(margin);
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NSMutableDictionary *dict = DOCUMENTATTRIBUTES;
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[dict setObject: [NSNumber numberWithFloat: fmargin] forKey: BUTTOMMARGIN];
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}
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void GSRTFfirstLineIndent(void *ctxt, int indent)
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@ -289,10 +489,11 @@ void GSRTFfirstLineIndent(void *ctxt, int indent)
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NSMutableParagraphStyle *para = PARAGRAPH;
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float findent = twips2points(indent);
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if ([para firstLineHeadIndent] != findent)
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// for attributed strings only positiv indent is allowed
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if ((findent >= 0.0) && ([para firstLineHeadIndent] != findent))
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{
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[para setFirstLineHeadIndent: findent];
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SETCHANGED(YES);
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -301,10 +502,11 @@ void GSRTFleftIndent(void *ctxt, int indent)
|
|||
NSMutableParagraphStyle *para = PARAGRAPH;
|
||||
float findent = twips2points(indent);
|
||||
|
||||
if ([para headIndent] != findent)
|
||||
// for attributed strings only positiv indent is allowed
|
||||
if ((findent >= 0.0) && ([para headIndent] != findent))
|
||||
{
|
||||
[para setHeadIndent: findent];
|
||||
SETCHANGED(YES);
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -315,7 +517,7 @@ void GSRTFalignCenter(void *ctxt)
|
|||
if ([para alignment] != NSCenterTextAlignment)
|
||||
{
|
||||
[para setAlignment: NSCenterTextAlignment];
|
||||
SETCHANGED(YES);
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -326,7 +528,7 @@ void GSRTFalignLeft(void *ctxt)
|
|||
if ([para alignment] != NSLeftTextAlignment)
|
||||
{
|
||||
[para setAlignment: NSLeftTextAlignment];
|
||||
SETCHANGED(YES);
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -337,7 +539,7 @@ void GSRTFalignRight(void *ctxt)
|
|||
if ([para alignment] != NSRightTextAlignment)
|
||||
{
|
||||
[para setAlignment: NSRightTextAlignment];
|
||||
SETCHANGED(YES);
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -345,23 +547,39 @@ void GSRTFstyle(void *ctxt, int style)
|
|||
{
|
||||
}
|
||||
|
||||
void GSRTFaddColor(void *ctxt, int red, int green, int blue)
|
||||
{
|
||||
NSColor *colour = [NSColor colorWithCalibratedRed: red/255.0
|
||||
green: green/255.0
|
||||
blue: blue/255.0
|
||||
alpha: 1.0];
|
||||
|
||||
[COLOURS addObject: colour];
|
||||
}
|
||||
|
||||
void GSRTFaddDefaultColor(void *ctxt)
|
||||
{
|
||||
[COLOURS addObject: [NSColor textColor]];
|
||||
}
|
||||
|
||||
void GSRTFcolorbg(void *ctxt, int color)
|
||||
{
|
||||
ASSIGN(BGCOLOUR, [COLOURS objectAtIndex: color]);
|
||||
}
|
||||
|
||||
void GSRTFcolorfg(void *ctxt, int color)
|
||||
{
|
||||
ASSIGN(FGCOLOUR, [COLOURS objectAtIndex: color]);
|
||||
}
|
||||
|
||||
void GSRTFsubscript(void *ctxt, int script)
|
||||
{
|
||||
script = (int) (-halfpoints2points(script) / 3.0);
|
||||
|
||||
if (script != [[CTXT objectForKey: GSscript] intValue])
|
||||
if (script != SCRIPT)
|
||||
{
|
||||
[CTXT setObject: [NSNumber numberWithInt: script]
|
||||
forKey: GSscript];
|
||||
SETCHANGED(YES);
|
||||
SCRIPT = script;
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -369,68 +587,50 @@ void GSRTFsuperscript(void *ctxt, int script)
|
|||
{
|
||||
script = (int) (halfpoints2points(script) / 3.0);
|
||||
|
||||
if (script != [[CTXT objectForKey: GSscript] intValue])
|
||||
if (script != SCRIPT)
|
||||
{
|
||||
[CTXT setObject: [NSNumber numberWithInt: script]
|
||||
forKey: GSscript];
|
||||
SETCHANGED(YES);
|
||||
SCRIPT = script;
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
void GSRTFitalic(void *ctxt, BOOL state)
|
||||
{
|
||||
if (state != [[CTXT objectForKey: GSitalic] boolValue])
|
||||
if (state != ITALIC)
|
||||
{
|
||||
[CTXT setObject: [NSNumber numberWithBool: state] forKey: GSitalic];
|
||||
SETCHANGED(YES);
|
||||
ITALIC = state;
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
void GSRTFbold(void *ctxt, BOOL state)
|
||||
{
|
||||
if (state != [[CTXT objectForKey: GSbold] boolValue])
|
||||
if (state != BOLD)
|
||||
{
|
||||
[CTXT setObject: [NSNumber numberWithBool: state] forKey: GSbold];
|
||||
SETCHANGED(YES);
|
||||
BOLD = state;
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
void GSRTFunderline(void *ctxt, BOOL state)
|
||||
{
|
||||
if (state != [[CTXT objectForKey: GSunderline] boolValue])
|
||||
if (state != UNDERLINE)
|
||||
{
|
||||
[CTXT setObject: [NSNumber numberWithBool: state] forKey: GSunderline];
|
||||
SETCHANGED(YES);
|
||||
UNDERLINE = state;
|
||||
CHANGED = YES;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
BOOL parseRTFintoAttributedString(NSString *rtfString,
|
||||
NSMutableAttributedString *result,
|
||||
NSDictionary **dict)
|
||||
NSAttributedString *parseRTFintoAttributedString(NSData *rtfData,
|
||||
NSDictionary **dict)
|
||||
{
|
||||
RTFscannerCtxt scanner;
|
||||
StringContext stringCtxt;
|
||||
NSMutableDictionary *myDict = [NSMutableDictionary dictionary];
|
||||
|
||||
[myDict setObject: result forKey: GSresultName];
|
||||
initStringContext(&stringCtxt, rtfString);
|
||||
lexInitContext(&scanner, &stringCtxt, (int (*)(void*))readNSString);
|
||||
GSRTFparse(myDict, &scanner);
|
||||
RTFConsumer *consumer = [RTFConsumer new];
|
||||
NSAttributedString *result;
|
||||
|
||||
// document attributes
|
||||
if (dict)
|
||||
(*dict)=[myDict objectForKey: GSdocumentAttributes];
|
||||
result = [consumer parseRTF: rtfData documentAttributes: dict];
|
||||
RELEASE(consumer);
|
||||
|
||||
return YES;
|
||||
}
|
||||
|
||||
NSMutableAttributedString *attributedStringFromRTF(NSString *rtfString)
|
||||
{
|
||||
NSMutableAttributedString *result = [[NSMutableAttributedString alloc] init];
|
||||
|
||||
parseRTFintoAttributedString(rtfString, result, NULL);
|
||||
|
||||
return AUTORELEASE(result);
|
||||
return result;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue