/
RScriptEditorTextView.m
1636 lines (1319 loc) · 55.9 KB
/
RScriptEditorTextView.m
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/*
* R.app : a Cocoa front end to: "R A Computer Language for Statistical Data Analysis"
*
* R.app Copyright notes:
* Copyright (C) 2004-5 The R Foundation
* written by Stefano M. Iacus and Simon Urbanek
*
*
* R Copyright notes:
* Copyright (C) 1995-1996 Robert Gentleman and Ross Ihaka
* Copyright (C) 1998-2001 The R Development Core Team
* Copyright (C) 2002-2004 The R Foundation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* A copy of the GNU General Public License is available via WWW at
* http://www.gnu.org/copyleft/gpl.html. You can also obtain it by
* writing to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA.
*
* RScriptEditorTextView.m
*
* Created by Hans-J. Bibiko on 15/02/2011.
*
*/
#import "RScriptEditorTextView.h"
#import "RScriptEditorTextStorage.h"
#import "RScriptEditorTypeSetter.h"
#import "RScriptEditorLayoutManager.h"
#import "RGUI.h"
#import "Tools/RTooltip.h"
#pragma mark -
#pragma mark flex init
/**
* Include all the extern variables and prototypes required for flex (used for syntax highlighting)
*/
#import "RScriptEditorTokens.h"
#import "RdScriptEditorTokens.h"
// R lexer
extern NSUInteger yylex();
extern NSUInteger yyuoffset, yyuleng;
typedef struct yy_buffer_state *YY_BUFFER_STATE;
void yy_switch_to_buffer(YY_BUFFER_STATE);
YY_BUFFER_STATE yy_scan_string (const char *);
// Rd lexer
extern NSUInteger rdlex();
typedef struct rd_buffer_state *RD_BUFFER_STATE;
void rd_switch_to_buffer(RD_BUFFER_STATE);
RD_BUFFER_STATE rd_scan_string (const char *);
static SEL _foldedSel;
#pragma mark -
#pragma mark attribute definition
#define kAPlinked @"Linked" // attribute for a via auto-pair inserted char
#define kAPval @"linked"
#define kLEXToken @"Quoted" // set via lex to indicate a quoted string
#define kLEXTokenValue @"isMarked"
#define kRkeyword @"s" // attribute for found R keywords
#define kQuote @"Quote"
#define kQuoteValue @"isQuoted"
#define kValue @"x"
#define kBTQuote @"BTQuote"
#define kBTQuoteValue @"isBTQuoted"
#pragma mark -
#define R_SYNTAX_HILITE_BIAS 2000
#define R_MAX_TEXT_SIZE_FOR_SYNTAX_HIGHLIGHTING 20000000
static inline const char* NSStringUTF8String(NSString* self)
{
typedef const char* (*SPUTF8StringMethodPtr)(NSString*, SEL);
static SPUTF8StringMethodPtr SPNSStringGetUTF8String;
if (!SPNSStringGetUTF8String) SPNSStringGetUTF8String = (SPUTF8StringMethodPtr)[NSString instanceMethodForSelector:@selector(UTF8String)];
const char* to_return = SPNSStringGetUTF8String(self, @selector(UTF8String));
return to_return;
}
static inline void NSMutableAttributedStringAddAttributeValueRange (NSMutableAttributedString* self, NSString* aStr, id aValue, NSRange aRange)
{
typedef void (*SPMutableAttributedStringAddAttributeValueRangeMethodPtr)(NSMutableAttributedString*, SEL, NSString*, id, NSRange);
static SPMutableAttributedStringAddAttributeValueRangeMethodPtr SPMutableAttributedStringAddAttributeValueRange;
if (!SPMutableAttributedStringAddAttributeValueRange) SPMutableAttributedStringAddAttributeValueRange = (SPMutableAttributedStringAddAttributeValueRangeMethodPtr)[self methodForSelector:@selector(addAttribute:value:range:)];
SPMutableAttributedStringAddAttributeValueRange(self, @selector(addAttribute:value:range:), aStr, aValue, aRange);
return;
}
static inline id NSMutableAttributedStringAttributeAtIndex (NSMutableAttributedString* self, NSString* aStr, NSUInteger index, NSRangePointer range)
{
typedef id (*SPMutableAttributedStringAttributeAtIndexMethodPtr)(NSMutableAttributedString*, SEL, NSString*, NSUInteger, NSRangePointer);
static SPMutableAttributedStringAttributeAtIndexMethodPtr SPMutableAttributedStringAttributeAtIndex;
if (!SPMutableAttributedStringAttributeAtIndex) SPMutableAttributedStringAttributeAtIndex = (SPMutableAttributedStringAttributeAtIndexMethodPtr)[self methodForSelector:@selector(attribute:atIndex:effectiveRange:)];
id r = SPMutableAttributedStringAttributeAtIndex(self, @selector(attribute:atIndex:effectiveRange:), aStr, index, range);
return r;
}
@implementation RScriptEditorTextView
- (void)awakeFromNib
{
// we are a subclass of RTextView which has its own awake and we must call it
[super awakeFromNib];
SLog(@"RScriptEditorTextView: awakeFromNib <%@>", self);
selfDelegate = (RDocumentWinCtrl*)[self delegate];
breakSyntaxHighlighting = 0;
_foldedSel = @selector(foldedAtIndex:);
// Bind scrollView programmatically - if done in RDocument.xib this'd lead to
// calling awakeFromNib twice
id scrView = (NSScrollView *)self.superview.superview;
if ([scrView isKindOfClass:[NSScrollView class]]) {
if(scrollView) [scrollView release];
scrollView = [scrView retain];
SLog(@"RScriptEditorTextView:awakeFromNib set scrollView");
}
prefs = [[NSUserDefaults standardUserDefaults] retain];
[[Preferences sharedPreferences] addDependent:self];
lineNumberingEnabled = [Preferences flagForKey:showLineNumbersKey withDefault:NO];
// Init textStorage and set self as delegate for the textView's textStorage to enable
// syntax highlighting, folding etc.
theTextStorage = [[RScriptEditorTextStorage alloc] initWithDelegate:self];
_foldedImp = [theTextStorage methodForSelector:_foldedSel];
// Make sure using foldingLayoutManager
if (![[self layoutManager] isKindOfClass:[RScriptEditorLayoutManager class]]) {
RScriptEditorLayoutManager *layoutManager = [[RScriptEditorLayoutManager alloc] init];
[[self textContainer] replaceLayoutManager:layoutManager];
[layoutManager release];
}
// disabled to get the current text range in textView safer
[[self layoutManager] setBackgroundLayoutEnabled:NO];
[[self layoutManager] replaceTextStorage:theTextStorage];
[(RScriptEditorTypeSetter*)[[self layoutManager] typesetter] setTextStorage:theTextStorage];
isSyntaxHighlighting = NO;
if([prefs objectForKey:highlightCurrentLine] == nil) [prefs setBool:YES forKey:highlightCurrentLine];
if([prefs objectForKey:indentNewLines] == nil) [prefs setBool:YES forKey:indentNewLines];
[self setFont:[Preferences unarchivedObjectForKey:RScriptEditorDefaultFont withDefault:[NSFont fontWithName:@"Monaco" size:11]]];
// Set defaults for general usage
braceHighlightInterval = [Preferences floatForKey:HighlightIntervalKey withDefault:0.3f];
argsHints = [Preferences flagForKey:prefShowArgsHints withDefault:YES];
lineWrappingEnabled = [Preferences flagForKey:enableLineWrappingKey withDefault:YES];
syntaxHighlightingEnabled = [Preferences flagForKey:showSyntaxColoringKey withDefault:YES];
deleteBackward = NO;
startListeningToBoundChanges = NO;
currentHighlight = -1;
// For now replaced selectedTextBackgroundColor by redColor
highlightColorAttr = [[NSDictionary alloc] initWithObjectsAndKeys:[NSColor redColor], NSBackgroundColorAttributeName, nil];
if([selfDelegate isRdDocument])
editorToolbar = [[RdEditorToolbar alloc] initWithEditor:selfDelegate];
else
editorToolbar = [[REditorToolbar alloc] initWithEditor:selfDelegate];
[self setAllowsDocumentBackgroundColorChange:YES];
[self setContinuousSpellCheckingEnabled:NO];
if(![Preferences flagForKey:enableLineWrappingKey withDefault: YES])
[scrollView setHasHorizontalScroller:YES];
if(!lineWrappingEnabled)
[self updateLineWrappingMode];
// Re-define tab stops for a better editing
[self setTabStops];
NSColor *c = [Preferences unarchivedObjectForKey:normalSyntaxColorKey withDefault:nil];
if (c) shColorNormal = c;
else shColorNormal=[NSColor colorWithDeviceRed:0.025 green:0.085 blue:0.600 alpha:1.0];
[shColorNormal retain];
c=[Preferences unarchivedObjectForKey:stringSyntaxColorKey withDefault:nil];
if (c) shColorString = c;
else shColorString=[NSColor colorWithDeviceRed:0.690 green:0.075 blue:0.000 alpha:1.0];
[shColorString retain];
c=[Preferences unarchivedObjectForKey:numberSyntaxColorKey withDefault:nil];
if (c) shColorNumber = c;
else shColorNumber=[NSColor colorWithDeviceRed:0.020 green:0.320 blue:0.095 alpha:1.0];
[shColorNumber retain];
c=[Preferences unarchivedObjectForKey:keywordSyntaxColorKey withDefault:nil];
if (c) shColorKeyword = c;
else shColorKeyword=[NSColor colorWithDeviceRed:0.765 green:0.535 blue:0.035 alpha:1.0];
[shColorKeyword retain];
c=[Preferences unarchivedObjectForKey:commentSyntaxColorKey withDefault:nil];
if (c) shColorComment = c;
else shColorComment=[NSColor colorWithDeviceRed:0.312 green:0.309 blue:0.309 alpha:1.0];
[shColorComment retain];
c=[Preferences unarchivedObjectForKey:identifierSyntaxColorKey withDefault:nil];
if (c) shColorIdentifier = c;
else shColorIdentifier=[NSColor colorWithDeviceRed:0.0 green:0.0 blue:0.0 alpha:1.0];
[shColorIdentifier retain];
c=[Preferences unarchivedObjectForKey:editorSelectionBackgroundColorKey withDefault:nil];
if (!c) c=[NSColor colorWithDeviceRed:0.71f green:0.835f blue:1.0f alpha:1.0f];
NSMutableDictionary *attr = [NSMutableDictionary dictionary];
[attr setDictionary:[self selectedTextAttributes]];
[attr setObject:c forKey:NSBackgroundColorAttributeName];
[self setSelectedTextAttributes:attr];
// Rd stuff
// c=[Preferences unarchivedObjectForKey:sectionRdSyntaxColorKey withDefault:nil];
// if (c) rdColorSection = c;
// else rdColorSection=[NSColor colorWithDeviceRed:0.8 green:0.0353 blue:0.02 alpha:1.0];
// [rdColorSection retain];
//
// c=[Preferences unarchivedObjectForKey:macroArgRdSyntaxColorKey withDefault:nil];
// if (c) rdColorMacroArg = c;
// else rdColorMacroArg=[NSColor colorWithDeviceRed:0.0 green:0.0 blue:0.98 alpha:1.0];
// [rdColorMacroArg retain];
//
// c=[Preferences unarchivedObjectForKey:macroGenRdSyntaxColorKey withDefault:nil];
// if (c) rdColorMacroGen = c;
// else rdColorMacroGen=[NSColor colorWithDeviceRed:0.4 green:0.78 blue:0.98 alpha:1.0];
// [rdColorMacroGen retain];
//
// c=[Preferences unarchivedObjectForKey:directiveRdSyntaxColorKey withDefault:nil];
// if (c) rdColorDirective = c;
// else rdColorDirective=[NSColor colorWithDeviceRed:0.0 green:0.785 blue:0.0 alpha:1.0];
// [rdColorDirective retain];
// c=[Preferences unarchivedObjectForKey:commentRdSyntaxColorKey withDefault:nil];
// if (c) rdColorComment = c;
// else rdColorComment=[NSColor colorWithDeviceRed:0.1 green:0.55 blue:0.05 alpha:1.0];
// [rdColorComment retain];
// c=[Preferences unarchivedObjectForKey:normalRdSyntaxColorKey withDefault:nil];
// if (c) rdColorNormal = c;
// else rdColorNormal=[NSColor colorWithDeviceRed:0.0 green:0.0 blue:0.0 alpha:1.0];
// [rdColorNormal retain];
c=[Preferences unarchivedObjectForKey:editorBackgroundColorKey withDefault:nil];
if (c) shColorBackground = c;
else shColorBackground=[NSColor colorWithDeviceRed:1.0 green:1.0 blue:1.0 alpha:1.0];
[shColorBackground retain];
c=[Preferences unarchivedObjectForKey:editorCurrentLineBackgroundColorKey withDefault:nil];
if (c) shColorCurrentLine = c;
else shColorCurrentLine=[NSColor colorWithDeviceRed:0.9 green:0.9 blue:0.9 alpha:0.8];
[shColorCurrentLine retain];
c=[Preferences unarchivedObjectForKey:editorCursorColorKey withDefault:nil];
if (c) shColorCursor = c;
else shColorCursor=[NSColor blackColor];
[shColorCursor retain];
[self setInsertionPointColor:shColorCursor];
// Register observers for the when editor background colors preference changes
[prefs addObserver:self forKeyPath:normalSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:stringSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:numberSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:keywordSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:commentSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
// [prefs addObserver:self forKeyPath:normalRdSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
// [prefs addObserver:self forKeyPath:commentRdSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
// [prefs addObserver:self forKeyPath:sectionRdSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
// [prefs addObserver:self forKeyPath:macroArgRdSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
// [prefs addObserver:self forKeyPath:macroGenRdSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
// [prefs addObserver:self forKeyPath:directiveRdSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:editorBackgroundColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:editorCurrentLineBackgroundColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:identifierSyntaxColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:editorCursorColorKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:showSyntaxColoringKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:prefShowArgsHints options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:enableLineWrappingKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:RScriptEditorDefaultFont options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:HighlightIntervalKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:highlightCurrentLine options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:showLineNumbersKey options:NSKeyValueObservingOptionNew context:NULL];
[prefs addObserver:self forKeyPath:editorSelectionBackgroundColorKey options:NSKeyValueObservingOptionNew context:NULL];
if(syntaxHighlightingEnabled) {
[self setTextColor:shColorNormal];
[self setInsertionPointColor:shColorCursor];
} else {
[self setTextColor:shColorNormal];
[self setInsertionPointColor:shColorCursor];
}
#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
[[self layoutManager] setAllowsNonContiguousLayout:YES];
#endif
// add NSViewBoundsDidChangeNotification to scrollView
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(boundsDidChangeNotification:) name:NSViewBoundsDidChangeNotification object:[scrollView contentView]];
}
- (void)dealloc {
SLog(@"RScriptEditorTextView: dealloc <%@>", self);
[theTextStorage release];
if(scrollView) [scrollView release];
if(editorToolbar) [editorToolbar release];
if(highlightColorAttr) [highlightColorAttr release];
if(shColorNormal) [shColorNormal release];
if(shColorString) [shColorString release];
if(shColorNumber) [shColorNumber release];
if(shColorKeyword) [shColorKeyword release];
if(shColorComment) [shColorComment release];
if(shColorIdentifier) [shColorIdentifier release];
if(shColorBackground) [shColorBackground release];
if(shColorCurrentLine) [shColorCurrentLine release];
if(shColorCursor) [shColorCursor release];
// if(rdColorNormal) [rdColorNormal release];
// if(rdColorComment) [rdColorComment release];
// if(rdColorSection) [rdColorSection release];
// if(rdColorMacroArg) [rdColorMacroArg release];
// if(rdColorMacroGen) [rdColorMacroGen release];
// if(rdColorDirective) [rdColorDirective release];
[[NSNotificationCenter defaultCenter] removeObserver:self];
[[Preferences sharedPreferences] removeDependent:self];
if(prefs) [prefs release];
[super dealloc];
}
- (id)scrollView
{
return scrollView;
}
- (void)setNonSyntaxHighlighting
{
[theTextStorage removeAttribute:NSForegroundColorAttributeName range:NSMakeRange(0, [[theTextStorage string] length])];
[theTextStorage removeAttribute:NSBackgroundColorAttributeName range:NSMakeRange(0, [[theTextStorage string] length])];
[self setTextColor:shColorNormal];
[self setInsertionPointColor:shColorCursor];
[self setNeedsDisplayInRect:[self visibleRect]];
}
/**
* This method is called as part of Key Value Observing which is used to watch for prefernce changes which effect the interface.
*/
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
if ([keyPath isEqualToString:normalSyntaxColorKey]) {
if(shColorNormal) [shColorNormal release];
shColorNormal = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
if([self isEditable])
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
} else if ([keyPath isEqualToString:stringSyntaxColorKey]) {
if(shColorString) [shColorString release];
shColorString = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
if([self isEditable])
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
} else if ([keyPath isEqualToString:numberSyntaxColorKey]) {
if(shColorNumber) [shColorNumber release];
shColorNumber = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
if([self isEditable])
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
} else if ([keyPath isEqualToString:keywordSyntaxColorKey]) {
if(shColorKeyword) [shColorKeyword release];
shColorKeyword = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
if([self isEditable])
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
} else if ([keyPath isEqualToString:commentSyntaxColorKey]) {
if(shColorComment) [shColorComment release];
shColorComment = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
if([self isEditable])
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
} else if ([keyPath isEqualToString:identifierSyntaxColorKey]) {
if(shColorIdentifier) [shColorIdentifier release];
shColorIdentifier = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
if([self isEditable])
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
// } else if ([keyPath isEqualToString:sectionRdSyntaxColorKey]) {
// if(rdColorSection) [rdColorSection release];
// rdColorSection = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
// if([self isEditable])
// [self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
// } else if ([keyPath isEqualToString:macroArgRdSyntaxColorKey]) {
// if(rdColorMacroArg) [rdColorMacroArg release];
// rdColorMacroArg = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
// if([self isEditable])
// [self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
// } else if ([keyPath isEqualToString:macroGenRdSyntaxColorKey]) {
// if(rdColorMacroGen) [rdColorMacroGen release];
// rdColorMacroGen = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
// if([self isEditable])
// [self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
// } else if ([keyPath isEqualToString:directiveRdSyntaxColorKey]) {
// if(rdColorDirective) [rdColorDirective release];
// rdColorDirective = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
// if([self isEditable])
// [self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
} else if ([keyPath isEqualToString:editorCursorColorKey]) {
if(shColorCursor) [shColorCursor release];
shColorCursor = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
[self setInsertionPointColor:shColorCursor];
[self setNeedsDisplayInRect:[self visibleRect]];
} else if ([keyPath isEqualToString:identifierSyntaxColorKey]) {
if(shColorIdentifier) [shColorIdentifier release];
shColorIdentifier = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
if([self isEditable])
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.1];
} else if ([keyPath isEqualToString:editorBackgroundColorKey]) {
if(shColorBackground) [shColorBackground release];
shColorBackground = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
[self setNeedsDisplayInRect:[self visibleRect]];
} else if ([keyPath isEqualToString:editorCurrentLineBackgroundColorKey]) {
if(shColorCurrentLine) [shColorCurrentLine release];
shColorCurrentLine = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
[self setNeedsDisplayInRect:[self visibleRect]];
} else if ([keyPath isEqualToString:editorSelectionBackgroundColorKey]) {
NSColor *c = [[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]] retain];
NSMutableDictionary *attr = [NSMutableDictionary dictionary];
[attr setDictionary:[self selectedTextAttributes]];
[attr setObject:c forKey:NSBackgroundColorAttributeName];
[self setSelectedTextAttributes:attr];
[self setNeedsDisplayInRect:[self visibleRect]];
} else if ([keyPath isEqualToString:showSyntaxColoringKey]) {
syntaxHighlightingEnabled = [[change objectForKey:NSKeyValueChangeNewKey] boolValue];
if(syntaxHighlightingEnabled) {
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.05f];
} else {
[self performSelector:@selector(setNonSyntaxHighlighting) withObject:nil afterDelay:0.05f];
}
} else if ([keyPath isEqualToString:enableLineWrappingKey]) {
[self updateLineWrappingMode];
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.05f];
[self setNeedsDisplay:YES];
} else if ([keyPath isEqualToString:showLineNumbersKey]) {
lineNumberingEnabled = [[change objectForKey:NSKeyValueChangeNewKey] boolValue];
if(lineNumberingEnabled) {
NoodleLineNumberView *theRulerView = [[NoodleLineNumberView alloc] initWithScrollView:scrollView];
[scrollView setVerticalRulerView:theRulerView];
[scrollView setHasHorizontalRuler:NO];
[scrollView setHasVerticalRuler:YES];
[scrollView setRulersVisible:YES];
[theRulerView release];
[(NoodleLineNumberView*)[[self enclosingScrollView] verticalRulerView] setLineWrappingMode:[Preferences flagForKey:enableLineWrappingKey withDefault: YES]];
} else {
[scrollView setHasHorizontalRuler:NO];
[scrollView setHasVerticalRuler:NO];
[scrollView setRulersVisible:NO];
}
[self setNeedsDisplay:YES];
} else if ([keyPath isEqualToString:prefShowArgsHints]) {
argsHints = [[change objectForKey:NSKeyValueChangeNewKey] boolValue];
if(!argsHints) {
[selfDelegate setStatusLineText:@""];
} else {
[self currentFunctionHint];
}
} else if ([keyPath isEqualToString:highlightCurrentLine]) {
[self setNeedsDisplayInRect:[self visibleRect]];
} else if ([keyPath isEqualToString:RScriptEditorDefaultFont] && ![[[[self window] windowController] document] isRTF] && ![self selectedRange].length) {
[self setFont:[NSUnarchiver unarchiveObjectWithData:[change objectForKey:NSKeyValueChangeNewKey]]];
[self setNeedsDisplayInRect:[self visibleRect]];
} else if ([keyPath isEqualToString:HighlightIntervalKey]) {
braceHighlightInterval = [Preferences floatForKey:HighlightIntervalKey withDefault:0.3f];
}
}
- (void)updateLineWrappingMode
{
NSSize layoutSize;
lineWrappingEnabled = [Preferences flagForKey:enableLineWrappingKey withDefault: YES];
[self setHorizontallyResizable:YES];
if (!lineWrappingEnabled) {
NSRange curRange = [self selectedRange];
layoutSize = NSMakeSize(10e6,10e6);
[scrollView setHasHorizontalScroller:YES];
[self setMaxSize:layoutSize];
[[self textContainer] setContainerSize:layoutSize];
[[self textContainer] setWidthTracksTextView:NO];
[self scrollRangeToVisible:NSMakeRange(curRange.location, 0)];
} else {
[scrollView setHasHorizontalScroller:NO];
layoutSize = [self maxSize];
[self setMaxSize:layoutSize];
[[self textContainer] setContainerSize:layoutSize];
[[self textContainer] setWidthTracksTextView:YES];
// Enforce view to be re-layouted correctly
// by re-inserting the the current text buffer
[[self undoManager] disableUndoRegistration];
NSRange curRange = [self selectedRange];
NSString *t = [[NSString alloc] initWithString:[self string]];
[self selectAll:nil];
[self insertText:@""];
usleep(1000);
[self insertText:t];
[t release];
[self setSelectedRange:curRange];
[self scrollRangeToVisible:NSMakeRange(curRange.location, 0)];
[[self undoManager] enableUndoRegistration];
}
[[self textContainer] setHeightTracksTextView:NO];
}
- (void)drawRect:(NSRect)rect
{
// Draw background only for screen display but not while printing
if([NSGraphicsContext currentContextDrawingToScreen]) {
// Draw textview's background
[shColorBackground setFill];
NSRectFill(rect);
// Highlightes the current line if set in the Pref
// and if nothing is selected in the text view
if ([prefs boolForKey:highlightCurrentLine] && ![self selectedRange].length && ![self isSnippetMode]) {
NSUInteger rectCount;
NSRange curLineRange = [[self string] lineRangeForRange:[self selectedRange]];
// [theTextStorage ensureAttributesAreFixedInRange:curLineRange];
NSRectArray queryRects = [[self layoutManager] rectArrayForCharacterRange: curLineRange
withinSelectedCharacterRange: curLineRange
inTextContainer: [self textContainer]
rectCount: &rectCount ];
[shColorCurrentLine setFill];
NSRectFillListUsingOperation(queryRects, rectCount, NSCompositeSourceOver);
}
}
[super drawRect:rect];
}
#pragma mark -
/**
* Performs syntax highlighting, trigger undo behaviour
*/
- (void)textStorageDidProcessEditing:(NSNotification *)notification
{
// Make sure that the notification is from the correct textStorage object
if (theTextStorage != [notification object]) return;
NSInteger editedMask = [theTextStorage editedMask];
SLog(@"RScriptEditorTextView: textStorageDidProcessEditing <%@> with mask %d", self, editedMask);
// if the user really changed the text
if(editedMask != 1) {
// For larger text break a running syntax highlighting for user interaction
// to make them more responsive (typing and scrolling)
// if([[theTextStorage string] length] > 120000) {
// breakSyntaxHighlighting = 1;
// }
[self checkSnippets];
breakSyntaxHighlighting = 1;
// Cancel calling doSyntaxHighlighting
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(doSyntaxHighlighting)
object:nil];
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.05f];
// Cancel setting undo break point
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(breakUndoCoalescing)
object:nil];
// Improve undo behaviour, i.e. it depends how fast the user types
[self performSelector:@selector(breakUndoCoalescing) withObject:nil afterDelay:0.8f];
[NSObject cancelPreviousPerformRequestsWithTarget:(RDocumentWinCtrl*)[self delegate]
selector:@selector(functionRescan)
object:nil];
// update function list to display the function in which the cursor is located
[(RDocumentWinCtrl*)[self delegate] performSelector:@selector(functionRescan) withObject:nil afterDelay:0.3f];
}
deleteBackward = NO;
startListeningToBoundChanges = YES;
}
#pragma mark -
- (BOOL)lineNumberingEnabled
{
return lineNumberingEnabled;
}
- (void)setDeleteBackward:(BOOL)delBack
{
deleteBackward = delBack;
}
/**
* Sets Tab Stops width for better editing behaviour
*/
- (void)setTabStops
{
SLog(@"RScriptEditorTextView: setTabStops <%@>", self);
NSFont *tvFont = [self font];
int i;
NSTextTab *aTab;
NSMutableArray *myArrayOfTabs;
NSMutableParagraphStyle *paragraphStyle;
BOOL oldEditableStatus = [self isEditable];
[self setEditable:YES];
int tabStopWidth = [Preferences integerForKey:RScriptEditorTabWidth withDefault:4];
if(tabStopWidth < 1) tabStopWidth = 1;
float theTabWidth = [[NSString stringWithString:@" "] sizeWithAttributes:[NSDictionary dictionaryWithObject:tvFont forKey:NSFontAttributeName]].width;
theTabWidth = (float)tabStopWidth * theTabWidth;
int numberOfTabs = 256/tabStopWidth;
myArrayOfTabs = [NSMutableArray arrayWithCapacity:numberOfTabs];
aTab = [[NSTextTab alloc] initWithType:NSLeftTabStopType location:theTabWidth];
[myArrayOfTabs addObject:aTab];
[aTab release];
for(i=1; i<numberOfTabs; i++) {
aTab = [[NSTextTab alloc] initWithType:NSLeftTabStopType location:theTabWidth + ((float)i * theTabWidth)];
[myArrayOfTabs addObject:aTab];
[aTab release];
}
paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
[paragraphStyle setTabStops:myArrayOfTabs];
// Soft wrapped lines are indented slightly
[paragraphStyle setHeadIndent:4.0];
NSMutableDictionary *textAttributes = [[[NSMutableDictionary alloc] initWithCapacity:1] autorelease];
[textAttributes setObject:paragraphStyle forKey:NSParagraphStyleAttributeName];
NSRange range = NSMakeRange(0, [theTextStorage length]);
if ([self shouldChangeTextInRange:range replacementString:nil]) {
[theTextStorage setAttributes:textAttributes range: range];
[self didChangeText];
}
[self setTypingAttributes:textAttributes];
[self setDefaultParagraphStyle:paragraphStyle];
[self setFont:tvFont];
[self setEditable:oldEditableStatus];
[paragraphStyle release];
}
- (BOOL)isSyntaxHighlighting
{
return isSyntaxHighlighting;
}
- (BOOL)breakSyntaxHighlighting
{
return breakSyntaxHighlighting;
}
/**
* Syntax Highlighting.
*
* (The main bottleneck is the [NSTextStorage addAttribute:value:range:] method - the parsing itself is really fast!)
* Some sample code from Andrew Choi ( http://members.shaw.ca/akochoi-old/blog/2003/11-09/index.html#3 ) has been reused.
*/
- (void)doSyntaxHighlighting
{
if(!syntaxHighlightingEnabled)
breakSyntaxHighlighting = 0;
if (!syntaxHighlightingEnabled || [selfDelegate plain]) return;
isSyntaxHighlighting = YES;
NSString *selfstr = [theTextStorage string];
NSInteger strlength = (NSInteger)[selfstr length];
// do not highlight if text larger than 10MB
if(strlength > 10000000 || !strlength) {
isSyntaxHighlighting = NO;
breakSyntaxHighlighting = 0;
return;
}
// == Do highlighting partly (max R_SYNTAX_HILITE_BIAS*2 around visibleRange
// by considering entire lines).
// Get the text range currently displayed in the view port
NSRect visibleRect = [self visibleRect];
NSRange visibleRange = [[self layoutManager] glyphRangeForBoundingRectWithoutAdditionalLayout:visibleRect inTextContainer:[self textContainer]];
if(!visibleRange.length) {
isSyntaxHighlighting = NO;
breakSyntaxHighlighting = 0;
return;
}
NSInteger start = visibleRange.location - R_SYNTAX_HILITE_BIAS;
if (start > 0)
while(start > 0) {
if(CFStringGetCharacterAtIndex((CFStringRef)selfstr, start)=='\n')
break;
start--;
}
if(start < 0) start = 0;
NSInteger end = NSMaxRange(visibleRange) + R_SYNTAX_HILITE_BIAS;
if (end > strlength) {
end = strlength;
} else {
while(end < strlength) {
if(CFStringGetCharacterAtIndex((CFStringRef)selfstr, end)=='\n')
break;
end++;
}
}
NSRange textRange = NSMakeRange(start, end-start);
// only to be sure that nothing went wrongly
textRange = NSIntersectionRange(textRange, NSMakeRange(0, [theTextStorage length]));
if (!textRange.length || textRange.length > 30000) {
isSyntaxHighlighting = NO;
breakSyntaxHighlighting = 0;
return;
}
[theTextStorage beginEditing];
NSColor *tokenColor = nil;
size_t token;
NSRange tokenRange;
// initialise flex
yyuoffset = textRange.location; yyuleng = 0;
BOOL hasFoldedItems = [theTextStorage hasFoldedItems];
if([selfDelegate isRdDocument]) {
rd_switch_to_buffer(rd_scan_string(NSStringUTF8String([selfstr substringWithRange:textRange])));
// now loop through all the tokens
while ((token = rdlex())) {
if(hasFoldedItems && [theTextStorage foldedAtIndex: yyuoffset] > -1) continue;
switch (token) {
case RDPT_COMMENT:
tokenColor = shColorComment;
break;
case RDPT_SECTION:
tokenColor = shColorKeyword;
break;
case RDPT_MACRO_ARG:
tokenColor = shColorNumber;
break;
case RDPT_MACRO_GEN:
tokenColor = shColorNumber;
break;
case RDPT_DIRECTIVE:
tokenColor = shColorString;
break;
case RDPT_OTHER:
tokenColor = shColorNormal;
break;
default:
tokenColor = shColorNormal;
}
tokenRange = NSMakeRange(yyuoffset, yyuleng);
// make sure that tokenRange is valid (and therefore within textRange)
// otherwise a bug in the lex code could cause the the TextView to crash
// NOTE Disabled for testing purposes for speed it up
tokenRange = NSIntersectionRange(tokenRange, textRange);
if (!tokenRange.length) continue;
NSMutableAttributedStringAddAttributeValueRange(theTextStorage, NSForegroundColorAttributeName, tokenColor, tokenRange);
if(breakSyntaxHighlighting) {
// Cancel calling doSyntaxHighlighting
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(doSyntaxHighlighting)
object:nil];
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.08f];
breakSyntaxHighlighting = 0;
break;
}
}
} else {
yy_switch_to_buffer(yy_scan_string(NSStringUTF8String([selfstr substringWithRange:textRange])));
// now loop through all the tokens
while ((token = yylex())) {
if(hasFoldedItems && [theTextStorage foldedAtIndex: yyuoffset] > -1) continue;
switch (token) {
case RPT_SINGLE_QUOTED_TEXT:
case RPT_DOUBLE_QUOTED_TEXT:
tokenColor = shColorString;
break;
case RPT_RESERVED_WORD:
tokenColor = shColorKeyword;
break;
case RPT_NUMERIC:
tokenColor = shColorNumber;
break;
case RPT_BACKTICK_QUOTED_TEXT:
tokenColor = shColorString;
break;
case RPT_COMMENT:
tokenColor = shColorComment;
break;
case RPT_VARIABLE:
tokenColor = shColorIdentifier;
break;
default:
tokenColor = shColorNormal;
}
tokenRange = NSMakeRange(yyuoffset, yyuleng);
// make sure that tokenRange is valid (and therefore within textRange)
// otherwise a bug in the lex code could cause the the TextView to crash
tokenRange = NSIntersectionRange(tokenRange, textRange);
if (!tokenRange.length) continue;
NSMutableAttributedStringAddAttributeValueRange(theTextStorage, NSForegroundColorAttributeName, tokenColor, tokenRange);
if(breakSyntaxHighlighting) {
// Cancel calling doSyntaxHighlighting
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(doSyntaxHighlighting)
object:nil];
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.08f];
breakSyntaxHighlighting = 0;
break;
}
}
}
// set current textColor to the color of the caret's position - 1
// to try to suppress writing in normalColor before syntax highlighting
NSUInteger ix = [self selectedRange].location;
if(ix > 1) {
NSMutableDictionary *typeAttr = [NSMutableDictionary dictionary];
[typeAttr setDictionary:[self typingAttributes]];
NSColor *c = [theTextStorage attribute:NSForegroundColorAttributeName atIndex:ix-1 effectiveRange:nil];
if(c) [typeAttr setObject:c forKey:NSForegroundColorAttributeName];
[self setTypingAttributes:typeAttr];
}
[theTextStorage endEditing];
[self setNeedsDisplayInRect:visibleRect];
breakSyntaxHighlighting = 0;
isSyntaxHighlighting = NO;
}
-(void)resetHighlights
{
SLog(@"RScriptEditorTextView: resetHighlights with current highlite %d", currentHighlight);
if (currentHighlight>-1) {
if (currentHighlight<[theTextStorage length]) {
NSLayoutManager *lm = [self layoutManager];
if (lm) {
NSRange fr = NSMakeRange(currentHighlight,1);
NSDictionary *d = [lm temporaryAttributesAtCharacterIndex:currentHighlight effectiveRange:&fr];
if (!d || [d objectForKey:NSBackgroundColorAttributeName]==nil) {
fr = NSMakeRange(0,[[self string] length]);
SLog(@"resetHighlights: attribute at %d not found, clearing all %d characters - better safe than sorry", currentHighlight, fr.length);
}
[lm removeTemporaryAttribute:NSBackgroundColorAttributeName forCharacterRange:fr];
}
}
currentHighlight=-1;
}
}
-(void)highlightCharacter:(NSNumber*)loc
{
NSInteger pos = [loc intValue];
SLog(@"RScriptEditorTextView: highlightCharacter: %d", pos);
if (pos>=0 && pos<[[self string] length]) {
#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
[self showFindIndicatorForRange:NSMakeRange(pos, 1)];
#else
[self resetHighlights];
NSLayoutManager *lm = [self layoutManager];
if (lm) {
currentHighlight = pos;
[lm setTemporaryAttributes:highlightColorAttr forCharacterRange:NSMakeRange(pos, 1)];
[self performSelector:@selector(resetBackgroundColor:) withObject:nil afterDelay:braceHighlightInterval];
}
#endif
}
else SLog(@"highlightCharacter: attempt to set highlight %d beyond the text range 0:%d - I refuse!", pos, [[self string] length] - 1);
}
-(void)resetBackgroundColor:(id)sender
{
[self resetHighlights];
}
/**
* Scrollview delegate after the textView's view port was changed.
* Manily used to update the syntax highlighting for a large text size
*/
- (void)boundsDidChangeNotification:(NSNotification *)notification
{
if(startListeningToBoundChanges) {
breakSyntaxHighlighting = 1;
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(doSyntaxHighlighting)
object:nil];
if(![theTextStorage changeInLength]) {
if([[theTextStorage string] length] > 120000)
breakSyntaxHighlighting = 2;
[self performSelector:@selector(doSyntaxHighlighting) withObject:nil afterDelay:0.08];
}
if(lineNumberingEnabled) {
[NSObject cancelPreviousPerformRequestsWithTarget:[[self enclosingScrollView] verticalRulerView]
selector:@selector(refresh)
object:nil];
[[[self enclosingScrollView] verticalRulerView] performSelector:@selector(refresh) withObject:nil afterDelay:0.001f];