1 /* vi:set ts=8 sts=4 sw=4 ft=objc:
3 * VIM - Vi IMproved by Bram Moolenaar
4 * MacVim GUI port by Bjorn Winckler
6 * Do ":help uganda" in Vim to read copying and usage conditions.
7 * Do ":help credits" in Vim to see a list of people who contributed.
8 * See README.txt for an overview of the Vim source code.
13 * Dispatches keyboard and mouse input to the backend. Handles drag-n-drop of
16 * Support for input managers is somewhat hacked together. Marked text is
17 * displayed in a popup window instead of 'in-line' (because it is easier).
20 #import "MMAppController.h"
21 #import "MMTextStorage.h"
22 #import "MMTextView.h"
23 #import "MMTypesetter.h"
24 #import "MMVimController.h"
25 #import "MMWindowController.h"
26 #import "Miscellaneous.h"
30 // This is taken from gui.h
31 #define DRAW_CURSOR 0x20
33 // The max/min drag timer interval in seconds
34 static NSTimeInterval MMDragTimerMaxInterval = .3f;
35 static NSTimeInterval MMDragTimerMinInterval = .01f;
37 // The number of pixels in which the drag timer interval changes
38 static float MMDragAreaSize = 73.0f;
40 static char MMKeypadEnter[2] = { 'K', 'A' };
41 static NSString *MMKeypadEnterString = @"KA";
49 @interface MMTextView (Private)
51 - (BOOL)convertPoint:(NSPoint)point toRow:(int *)row column:(int *)column;
52 - (BOOL)convertRow:(int)row column:(int)column toPoint:(NSPoint *)point;
53 - (BOOL)convertRow:(int)row column:(int)column numRows:(int)nr
54 numColumns:(int)nc toRect:(NSRect *)rect;
55 - (NSRect)trackingRect;
56 - (void)dispatchKeyEvent:(NSEvent *)event;
57 - (MMWindowController *)windowController;
58 - (MMVimController *)vimController;
59 - (void)startDragTimerWithInterval:(NSTimeInterval)t;
60 - (void)dragTimerFired:(NSTimer *)timer;
61 - (void)sendKeyDown:(const char *)chars length:(int)len modifiers:(int)flags;
62 - (void)hideMouseCursor;
63 - (void)drawInsertionPointAtRow:(int)row column:(int)col shape:(int)shape
64 fraction:(int)percent color:(NSColor *)color;
65 - (void)drawInvertedRectAtRow:(int)row column:(int)col numRows:(int)nrows
66 numColumns:(int)ncols invert:(int)invert;
71 @implementation MMTextView
73 - (id)initWithFrame:(NSRect)frame
75 // Set up a Cocoa text system. Note that the textStorage is released in
76 // -[MMVimView dealloc].
77 MMTextStorage *textStorage = [[MMTextStorage alloc] init];
78 NSLayoutManager *lm = [[NSLayoutManager alloc] init];
79 NSTextContainer *tc = [[NSTextContainer alloc] initWithContainerSize:
80 NSMakeSize(1.0e7,1.0e7)];
82 NSString *typesetterString = [[NSUserDefaults standardUserDefaults]
83 stringForKey:MMTypesetterKey];
84 if ([typesetterString isEqual:@"MMTypesetter"]) {
85 NSTypesetter *typesetter = [[MMTypesetter alloc] init];
86 [lm setTypesetter:typesetter];
88 } else if ([typesetterString isEqual:@"MMTypesetter2"]) {
89 NSTypesetter *typesetter = [[MMTypesetter2 alloc] init];
90 [lm setTypesetter:typesetter];
93 // Only MMTypesetter supports different cell width multipliers.
94 [[NSUserDefaults standardUserDefaults]
95 setFloat:1.0 forKey:MMCellWidthMultiplierKey];
98 // The characters in the text storage are in display order, so disable
99 // bidirectional text processing (this call is 10.4 only).
100 [[lm typesetter] setBidiProcessingEnabled:NO];
102 [tc setWidthTracksTextView:NO];
103 [tc setHeightTracksTextView:NO];
104 [tc setLineFragmentPadding:0];
106 [textStorage addLayoutManager:lm];
107 [lm addTextContainer:tc];
109 // The text storage retains the layout manager which in turn retains
110 // the text container.
114 // NOTE: This will make the text storage the principal owner of the text
115 // system. Releasing the text storage will in turn release the layout
116 // manager, the text container, and finally the text view (self). This
117 // complicates deallocation somewhat, see -[MMVimView dealloc].
118 if (![super initWithFrame:frame textContainer:tc]) {
119 [textStorage release];
123 // NOTE: If the default changes to 'NO' then the intialization of
124 // p_antialias in option.c must change as well.
131 //NSLog(@"MMTextView dealloc");
133 if (markedTextField) {
134 [[markedTextField window] autorelease];
135 [markedTextField release];
136 markedTextField = nil;
148 - (BOOL)shouldDrawInsertionPoint
150 // NOTE: The insertion point is drawn manually in drawRect:. It would be
151 // nice to be able to use the insertion point related methods of
152 // NSTextView, but it seems impossible to get them to work properly (search
153 // the cocoabuilder archives).
157 - (void)setShouldDrawInsertionPoint:(BOOL)on
159 shouldDrawInsertionPoint = on;
162 - (void)setPreEditRow:(int)row column:(int)col
168 - (void)hideMarkedTextField
170 if (markedTextField) {
171 NSWindow *win = [markedTextField window];
173 [markedTextField setStringValue:@""];
178 #define MM_DEBUG_DRAWING 0
180 - (void)performBatchDrawWithData:(NSData *)data
182 MMTextStorage *textStorage = (MMTextStorage *)[self textStorage];
186 const void *bytes = [data bytes];
187 const void *end = bytes + [data length];
188 int cursorRow = -1, cursorCol = 0;
191 NSLog(@"====> BEGIN %s", _cmd);
193 [textStorage beginEditing];
195 // TODO: Sanity check input
197 while (bytes < end) {
198 int type = *((int*)bytes); bytes += sizeof(int);
200 if (ClearAllDrawType == type) {
202 NSLog(@" Clear all");
204 [textStorage clearAll];
205 } else if (ClearBlockDrawType == type) {
206 unsigned color = *((unsigned*)bytes); bytes += sizeof(unsigned);
207 int row1 = *((int*)bytes); bytes += sizeof(int);
208 int col1 = *((int*)bytes); bytes += sizeof(int);
209 int row2 = *((int*)bytes); bytes += sizeof(int);
210 int col2 = *((int*)bytes); bytes += sizeof(int);
213 NSLog(@" Clear block (%d,%d) -> (%d,%d)", row1, col1,
216 [textStorage clearBlockFromRow:row1 column:col1
217 toRow:row2 column:col2
218 color:[NSColor colorWithArgbInt:color]];
219 } else if (DeleteLinesDrawType == type) {
220 unsigned color = *((unsigned*)bytes); bytes += sizeof(unsigned);
221 int row = *((int*)bytes); bytes += sizeof(int);
222 int count = *((int*)bytes); bytes += sizeof(int);
223 int bot = *((int*)bytes); bytes += sizeof(int);
224 int left = *((int*)bytes); bytes += sizeof(int);
225 int right = *((int*)bytes); bytes += sizeof(int);
228 NSLog(@" Delete %d line(s) from %d", count, row);
230 [textStorage deleteLinesFromRow:row lineCount:count
231 scrollBottom:bot left:left right:right
232 color:[NSColor colorWithArgbInt:color]];
233 } else if (DrawStringDrawType == type) {
234 int bg = *((int*)bytes); bytes += sizeof(int);
235 int fg = *((int*)bytes); bytes += sizeof(int);
236 int sp = *((int*)bytes); bytes += sizeof(int);
237 int row = *((int*)bytes); bytes += sizeof(int);
238 int col = *((int*)bytes); bytes += sizeof(int);
239 int cells = *((int*)bytes); bytes += sizeof(int);
240 int flags = *((int*)bytes); bytes += sizeof(int);
241 int len = *((int*)bytes); bytes += sizeof(int);
242 NSString *string = [[NSString alloc]
243 initWithBytes:(void*)bytes length:len
244 encoding:NSUTF8StringEncoding];
248 NSLog(@" Draw string at (%d,%d) length=%d flags=%d fg=0x%x "
249 "bg=0x%x sp=0x%x (%@)", row, col, len, flags, fg, bg, sp,
250 len > 0 ? [string substringToIndex:1] : @"");
252 // NOTE: If this is a call to draw the (block) cursor, then cancel
253 // any previous request to draw the insertion point, or it might
254 // get drawn as well.
255 if (flags & DRAW_CURSOR) {
256 [self setShouldDrawInsertionPoint:NO];
257 //NSColor *color = [NSColor colorWithRgbInt:bg];
258 //[self drawInsertionPointAtRow:row column:col
259 // shape:MMInsertionPointBlock
263 [textStorage drawString:string
264 atRow:row column:col cells:cells
266 foregroundColor:[NSColor colorWithRgbInt:fg]
267 backgroundColor:[NSColor colorWithArgbInt:bg]
268 specialColor:[NSColor colorWithRgbInt:sp]];
271 } else if (InsertLinesDrawType == type) {
272 unsigned color = *((unsigned*)bytes); bytes += sizeof(unsigned);
273 int row = *((int*)bytes); bytes += sizeof(int);
274 int count = *((int*)bytes); bytes += sizeof(int);
275 int bot = *((int*)bytes); bytes += sizeof(int);
276 int left = *((int*)bytes); bytes += sizeof(int);
277 int right = *((int*)bytes); bytes += sizeof(int);
280 NSLog(@" Insert %d line(s) at row %d", count, row);
282 [textStorage insertLinesAtRow:row lineCount:count
283 scrollBottom:bot left:left right:right
284 color:[NSColor colorWithArgbInt:color]];
285 } else if (DrawCursorDrawType == type) {
286 unsigned color = *((unsigned*)bytes); bytes += sizeof(unsigned);
287 int row = *((int*)bytes); bytes += sizeof(int);
288 int col = *((int*)bytes); bytes += sizeof(int);
289 int shape = *((int*)bytes); bytes += sizeof(int);
290 int percent = *((int*)bytes); bytes += sizeof(int);
293 NSLog(@" Draw cursor at (%d,%d)", row, col);
295 [self drawInsertionPointAtRow:row column:col shape:shape
297 color:[NSColor colorWithRgbInt:color]];
298 } else if (DrawInvertedRectDrawType == type) {
299 int row = *((int*)bytes); bytes += sizeof(int);
300 int col = *((int*)bytes); bytes += sizeof(int);
301 int nr = *((int*)bytes); bytes += sizeof(int);
302 int nc = *((int*)bytes); bytes += sizeof(int);
303 int invert = *((int*)bytes); bytes += sizeof(int);
306 NSLog(@" Draw inverted rect: row=%d col=%d nrows=%d ncols=%d",
309 [self drawInvertedRectAtRow:row column:col numRows:nr numColumns:nc
311 } else if (SetCursorPosDrawType == type) {
312 cursorRow = *((int*)bytes); bytes += sizeof(int);
313 cursorCol = *((int*)bytes); bytes += sizeof(int);
315 NSLog(@"WARNING: Unknown draw type (type=%d)", type);
319 [textStorage endEditing];
321 if (cursorRow >= 0) {
322 unsigned off = [textStorage characterIndexForRow:cursorRow
324 unsigned maxoff = [[textStorage string] length];
325 if (off > maxoff) off = maxoff;
327 [self setSelectedRange:NSMakeRange(off, 0)];
330 // NOTE: During resizing, Cocoa only sends draw messages before Vim's rows
331 // and columns are changed (due to ipc delays). Force a redraw here.
332 [self displayIfNeeded];
335 NSLog(@"<==== END %s", _cmd);
339 - (void)setMouseShape:(int)shape
345 - (void)setAntialias:(BOOL)state
352 return [(MMTextStorage*)[self textStorage] font];
355 - (void)setFont:(NSFont *)newFont
357 [(MMTextStorage*)[self textStorage] setFont:newFont];
360 - (void)setWideFont:(NSFont *)newFont
362 [(MMTextStorage*)[self textStorage] setWideFont:newFont];
367 return [(MMTextStorage*)[self textStorage] cellSize];
370 - (void)setLinespace:(float)newLinespace
372 return [(MMTextStorage*)[self textStorage] setLinespace:newLinespace];
375 - (void)getMaxRows:(int*)rows columns:(int*)cols
377 return [(MMTextStorage*)[self textStorage] getMaxRows:rows columns:cols];
380 - (void)setMaxRows:(int)rows columns:(int)cols
382 return [(MMTextStorage*)[self textStorage] setMaxRows:rows columns:cols];
385 - (NSRect)rectForRowsInRange:(NSRange)range
387 return [(MMTextStorage*)[self textStorage] rectForRowsInRange:range];
390 - (NSRect)rectForColumnsInRange:(NSRange)range
392 return [(MMTextStorage*)[self textStorage] rectForColumnsInRange:range];
395 - (void)setDefaultColorsBackground:(NSColor *)bgColor
396 foreground:(NSColor *)fgColor
398 [self setBackgroundColor:bgColor];
399 return [(MMTextStorage*)[self textStorage]
400 setDefaultColorsBackground:bgColor foreground:fgColor];
403 - (NSSize)constrainRows:(int *)rows columns:(int *)cols toSize:(NSSize)size
405 NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
406 int right = [ud integerForKey:MMTextInsetRightKey];
407 int bot = [ud integerForKey:MMTextInsetBottomKey];
409 size.width -= [self textContainerOrigin].x + right;
410 size.height -= [self textContainerOrigin].y + bot;
412 NSSize newSize = [(MMTextStorage*)[self textStorage] fitToSize:size
416 newSize.width += [self textContainerOrigin].x + right;
417 newSize.height += [self textContainerOrigin].y + bot;
422 - (NSSize)desiredSize
424 NSSize size = [(MMTextStorage*)[self textStorage] size];
426 NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
427 int right = [ud integerForKey:MMTextInsetRightKey];
428 int bot = [ud integerForKey:MMTextInsetBottomKey];
430 size.width += [self textContainerOrigin].x + right;
431 size.height += [self textContainerOrigin].y + bot;
438 NSSize cellSize = [(MMTextStorage*)[self textStorage] cellSize];
439 NSSize size = { MMMinColumns*cellSize.width, MMMinRows*cellSize.height };
441 NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
442 int right = [ud integerForKey:MMTextInsetRightKey];
443 int bot = [ud integerForKey:MMTextInsetBottomKey];
445 size.width += [self textContainerOrigin].x + right;
446 size.height += [self textContainerOrigin].y + bot;
456 - (void)drawRect:(NSRect)rect
458 NSGraphicsContext *context = [NSGraphicsContext currentContext];
459 [context setShouldAntialias:antialias];
461 [super drawRect:rect];
464 CGContextRef cgctx = (CGContextRef)[context graphicsPort];
465 CGContextSaveGState(cgctx);
466 CGContextSetBlendMode(cgctx, kCGBlendModeDifference);
467 CGContextSetRGBFillColor(cgctx, 1.0, 1.0, 1.0, 1.0);
470 CGRect *rect = (CGRect*)invertRects;
471 for (i = 0; i < numInvertRects; ++i)
472 CGContextFillRect(cgctx, rect[i]);
474 CGContextRestoreGState(cgctx);
481 if (shouldDrawInsertionPoint) {
482 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
484 NSRect ipRect = [ts boundingRectForCharacterAtRow:insertionPointRow
485 column:insertionPointColumn];
486 ipRect.origin.x += [self textContainerOrigin].x;
487 ipRect.origin.y += [self textContainerOrigin].y;
489 if (MMInsertionPointHorizontal == insertionPointShape) {
490 int frac = ([ts cellSize].height * insertionPointFraction + 99)/100;
491 ipRect.origin.y += ipRect.size.height - frac;
492 ipRect.size.height = frac;
493 } else if (MMInsertionPointVertical == insertionPointShape) {
494 int frac = ([ts cellSize].width * insertionPointFraction + 99)/100;
495 ipRect.size.width = frac;
496 } else if (MMInsertionPointVerticalRight == insertionPointShape) {
497 int frac = ([ts cellSize].width * insertionPointFraction + 99)/100;
498 ipRect.origin.x += ipRect.size.width - frac;
499 ipRect.size.width = frac;
502 [[self insertionPointColor] set];
503 if (MMInsertionPointHollow == insertionPointShape) {
509 // NOTE: We only draw the cursor once and rely on Vim to say when it
510 // should be drawn again.
511 shouldDrawInsertionPoint = NO;
513 //NSLog(@"%s draw insertion point %@ shape=%d color=%@", _cmd,
514 // NSStringFromRect(ipRect), insertionPointShape,
515 // [self insertionPointColor]);
518 // this code invalidates the shadow, so we don't
519 // get shifting ghost text on scroll and resize
520 // but makes speed unusable
521 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
522 if ([ts defaultBackgroundAlpha] < 1.0f) {
523 if (floor(NSAppKitVersionNumber) <= NSAppKitVersionNumber10_1)
525 [[self window] setHasShadow:NO];
526 [[self window] setHasShadow:YES];
529 [[self window] invalidateShadow];
535 - (void)keyDown:(NSEvent *)event
537 //NSLog(@"%s %@", _cmd, event);
538 // HACK! If control modifier is held, don't pass the event along to
539 // interpretKeyEvents: since some keys are bound to multiple commands which
540 // means doCommandBySelector: is called several times. Do the same for
541 // Alt+Function key presses (Alt+Up and Alt+Down are bound to two
542 // commands). This hack may break input management, but unless we can
543 // figure out a way to disable key bindings there seems little else to do.
545 // TODO: Figure out a way to disable Cocoa key bindings entirely, without
546 // affecting input management.
547 int flags = [event modifierFlags];
548 if ((flags & NSControlKeyMask) ||
549 ((flags & NSAlternateKeyMask) && (flags & NSFunctionKeyMask))) {
550 NSString *unmod = [event charactersIgnoringModifiers];
551 if ([unmod length] == 1 && [unmod characterAtIndex:0] <= 0x7f
552 && [unmod characterAtIndex:0] >= 0x60) {
553 // HACK! Send Ctrl-letter keys (and C-@, C-[, C-\, C-], C-^, C-_)
554 // as normal text to be added to the Vim input buffer. This must
555 // be done in order for the backend to be able to separate e.g.
556 // Ctrl-i and Ctrl-tab.
557 [self insertText:[event characters]];
559 [self dispatchKeyEvent:event];
562 [super keyDown:event];
566 - (void)insertText:(id)string
568 //NSLog(@"%s %@", _cmd, string);
569 // NOTE! This method is called for normal key presses but also for
570 // Option-key presses --- even when Ctrl is held as well as Option. When
571 // Ctrl is held, the AppKit translates the character to a Ctrl+key stroke,
572 // so 'string' need not be a printable character! In this case it still
573 // works to pass 'string' on to Vim as a printable character (since
574 // modifiers are already included and should not be added to the input
575 // buffer using CSI, K_MODIFIER).
577 [self hideMarkedTextField];
579 NSEvent *event = [NSApp currentEvent];
581 // HACK! In order to be able to bind to <S-Space>, <S-M-Tab>, etc. we have
582 // to watch for them here.
583 if ([event type] == NSKeyDown
584 && [[event charactersIgnoringModifiers] length] > 0
585 && [event modifierFlags]
586 & (NSShiftKeyMask|NSControlKeyMask|NSAlternateKeyMask)) {
587 unichar c = [[event charactersIgnoringModifiers] characterAtIndex:0];
589 // <S-M-Tab> translates to 0x19
590 if (' ' == c || 0x19 == c) {
591 [self dispatchKeyEvent:event];
596 [self hideMouseCursor];
598 // NOTE: 'string' is either an NSString or an NSAttributedString. Since we
599 // do not support attributes, simply pass the corresponding NSString in the
601 if ([string isKindOfClass:[NSAttributedString class]])
602 string = [string string];
604 //NSLog(@"send InsertTextMsgID: %@", string);
606 [[self vimController] sendMessage:InsertTextMsgID
607 data:[string dataUsingEncoding:NSUTF8StringEncoding]];
611 - (void)doCommandBySelector:(SEL)selector
613 //NSLog(@"%s %@", _cmd, NSStringFromSelector(selector));
614 // By ignoring the selector we effectively disable the key binding
615 // mechanism of Cocoa. Hopefully this is what the user will expect
616 // (pressing Ctrl+P would otherwise result in moveUp: instead of previous
619 // We usually end up here if the user pressed Ctrl+key (but not
622 NSEvent *event = [NSApp currentEvent];
624 if (selector == @selector(cancelOperation:)
625 || selector == @selector(insertNewline:)) {
626 // HACK! If there was marked text which got abandoned as a result of
627 // hitting escape or enter, then 'insertText:' is called with the
628 // abandoned text but '[event characters]' includes the abandoned text
629 // as well. Since 'dispatchKeyEvent:' looks at '[event characters]' we
630 // must intercept these keys here or the abandonded text gets inserted
632 NSString *key = [event charactersIgnoringModifiers];
633 const char *chars = [key UTF8String];
634 int len = [key lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
636 if (0x3 == chars[0]) {
637 // HACK! AppKit turns enter (not return) into Ctrl-C, so we need to
638 // handle it separately (else Ctrl-C doesn't work).
639 len = sizeof(MMKeypadEnter)/sizeof(MMKeypadEnter[0]);
640 chars = MMKeypadEnter;
643 [self sendKeyDown:chars length:len modifiers:[event modifierFlags]];
645 [self dispatchKeyEvent:event];
649 - (BOOL)performKeyEquivalent:(NSEvent *)event
651 //NSLog(@"%s %@", _cmd, event);
652 // Called for Cmd+key keystrokes, function keys, arrow keys, page
653 // up/down, home, end.
655 // NOTE: This message cannot be ignored since Cmd+letter keys never are
656 // passed to keyDown:. It seems as if the main menu consumes Cmd-key
657 // strokes, unless the key is a function key.
659 // NOTE: If the event that triggered this method represents a function key
660 // down then we do nothing, otherwise the input method never gets the key
661 // stroke (some input methods use e.g. arrow keys). The function key down
662 // event will still reach Vim though (via keyDown:). The exceptions to
663 // this rule are: PageUp/PageDown (keycode 116/121).
664 int flags = [event modifierFlags];
665 if ([event type] != NSKeyDown || flags & NSFunctionKeyMask
666 && !(116 == [event keyCode] || 121 == [event keyCode]))
669 // HACK! KeyCode 50 represent the key which switches between windows
670 // within an application (like Cmd+Tab is used to switch between
671 // applications). Return NO here, else the window switching does not work.
672 if ([event keyCode] == 50)
675 // HACK! Let the main menu try to handle any key down event, before
676 // passing it on to vim, otherwise key equivalents for menus will
677 // effectively be disabled.
678 if ([[NSApp mainMenu] performKeyEquivalent:event])
681 // HACK! On Leopard Ctrl-key events end up here instead of keyDown:.
682 if (flags & NSControlKeyMask) {
683 [self keyDown:event];
687 //NSLog(@"%s%@", _cmd, event);
689 NSString *chars = [event characters];
690 NSString *unmodchars = [event charactersIgnoringModifiers];
691 int len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
692 NSMutableData *data = [NSMutableData data];
697 // If 'chars' and 'unmodchars' differs when shift flag is present, then we
698 // can clear the shift flag as it is already included in 'unmodchars'.
699 // Failing to clear the shift flag means <D-Bar> turns into <S-D-Bar> (on
700 // an English keyboard).
701 if (flags & NSShiftKeyMask && ![chars isEqual:unmodchars])
702 flags &= ~NSShiftKeyMask;
704 if (0x3 == [unmodchars characterAtIndex:0]) {
705 // HACK! AppKit turns enter (not return) into Ctrl-C, so we need to
706 // handle it separately (else Cmd-enter turns into Ctrl-C).
707 unmodchars = MMKeypadEnterString;
708 len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
711 [data appendBytes:&flags length:sizeof(int)];
712 [data appendBytes:&len length:sizeof(int)];
713 [data appendBytes:[unmodchars UTF8String] length:len];
715 [[self vimController] sendMessage:CmdKeyMsgID data:data];
720 - (BOOL)hasMarkedText
722 //NSLog(@"%s", _cmd);
723 return markedTextField && [[markedTextField stringValue] length] > 0;
726 - (NSRange)markedRange
728 //NSLog(@"%s", _cmd);
729 unsigned len = [[markedTextField stringValue] length];
730 return NSMakeRange(len > 0 ? 0 : NSNotFound, len);
733 - (void)setMarkedText:(id)text selectedRange:(NSRange)range
735 //NSLog(@"setMarkedText:'%@' selectedRange:%@", text,
736 // NSStringFromRange(range));
738 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
741 if (!markedTextField) {
742 // Create a text field and put it inside a floating panel. This field
743 // is used to display marked text.
744 NSSize cellSize = [ts cellSize];
745 NSRect cellRect = { 0, 0, cellSize.width, cellSize.height };
747 markedTextField = [[NSTextField alloc] initWithFrame:cellRect];
748 [markedTextField setEditable:NO];
749 [markedTextField setSelectable:NO];
750 [markedTextField setBezeled:NO];
751 [markedTextField setBordered:YES];
753 // NOTE: The panel that holds the marked text field is allocated here
754 // and released in dealloc. No pointer to the panel is kept, instead
755 // [markedTextField window] is used to access the panel.
756 NSPanel *panel = [[NSPanel alloc]
757 initWithContentRect:cellRect
758 styleMask:NSBorderlessWindowMask|NSUtilityWindowMask
759 backing:NSBackingStoreBuffered
762 //[panel setHidesOnDeactivate:NO];
763 [panel setFloatingPanel:YES];
764 [panel setBecomesKeyOnlyIfNeeded:YES];
765 [panel setContentView:markedTextField];
768 if (text && [text length] > 0) {
769 [markedTextField setFont:[ts font]];
770 if ([text isKindOfClass:[NSAttributedString class]])
771 [markedTextField setAttributedStringValue:text];
773 [markedTextField setStringValue:text];
775 [markedTextField sizeToFit];
776 NSSize size = [markedTextField frame].size;
778 // Convert coordinates (row,col) -> view -> window base -> screen
780 if (![self convertRow:preEditRow+1 column:preEditColumn
783 origin = [self convertPoint:origin toView:nil];
784 origin = [[self window] convertBaseToScreen:origin];
786 NSWindow *win = [markedTextField window];
787 [win setContentSize:size];
788 [win setFrameOrigin:origin];
789 [win orderFront:nil];
791 [self hideMarkedTextField];
797 //NSLog(@"%s", _cmd);
798 [self hideMarkedTextField];
801 - (NSRect)firstRectForCharacterRange:(NSRange)range
803 //NSLog(@"%s%@", _cmd, NSStringFromRange(range));
804 // HACK! This method is called when the input manager wants to pop up an
805 // auxiliary window. The position where this should be is controller by
806 // Vim by sending SetPreEditPositionMsgID so compute a position based on
807 // the pre-edit (row,column) pair.
808 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
810 NSRect rect = [ts boundingRectForCharacterAtRow:preEditRow
811 column:preEditColumn];
812 rect.origin.x += [self textContainerOrigin].x;
813 rect.origin.y += [self textContainerOrigin].y + [ts cellSize].height;
815 rect.origin = [self convertPoint:rect.origin toView:nil];
816 rect.origin = [[self window] convertBaseToScreen:rect.origin];
821 - (void)scrollWheel:(NSEvent *)event
823 if ([event deltaY] == 0)
827 NSPoint pt = [self convertPoint:[event locationInWindow] fromView:nil];
828 if (![self convertPoint:pt toRow:&row column:&col])
831 int flags = [event modifierFlags];
832 float dy = [event deltaY];
833 NSMutableData *data = [NSMutableData data];
835 [data appendBytes:&row length:sizeof(int)];
836 [data appendBytes:&col length:sizeof(int)];
837 [data appendBytes:&flags length:sizeof(int)];
838 [data appendBytes:&dy length:sizeof(float)];
840 [[self vimController] sendMessage:ScrollWheelMsgID data:data];
843 - (void)mouseDown:(NSEvent *)event
846 NSPoint pt = [self convertPoint:[event locationInWindow] fromView:nil];
847 if (![self convertPoint:pt toRow:&row column:&col])
850 int button = [event buttonNumber];
851 int flags = [event modifierFlags];
852 int count = [event clickCount];
853 NSMutableData *data = [NSMutableData data];
855 // If desired, intepret Ctrl-Click as a right mouse click.
856 BOOL translateCtrlClick = [[NSUserDefaults standardUserDefaults]
857 boolForKey:MMTranslateCtrlClickKey];
858 flags = flags & NSDeviceIndependentModifierFlagsMask;
859 if (translateCtrlClick && button == 0 &&
860 (flags == NSControlKeyMask ||
861 flags == (NSControlKeyMask|NSAlphaShiftKeyMask))) {
863 flags &= ~NSControlKeyMask;
866 [data appendBytes:&row length:sizeof(int)];
867 [data appendBytes:&col length:sizeof(int)];
868 [data appendBytes:&button length:sizeof(int)];
869 [data appendBytes:&flags length:sizeof(int)];
870 [data appendBytes:&count length:sizeof(int)];
872 [[self vimController] sendMessage:MouseDownMsgID data:data];
875 - (void)rightMouseDown:(NSEvent *)event
877 [self mouseDown:event];
880 - (void)otherMouseDown:(NSEvent *)event
882 [self mouseDown:event];
885 - (void)mouseUp:(NSEvent *)event
888 NSPoint pt = [self convertPoint:[event locationInWindow] fromView:nil];
889 if (![self convertPoint:pt toRow:&row column:&col])
892 int flags = [event modifierFlags];
893 NSMutableData *data = [NSMutableData data];
895 [data appendBytes:&row length:sizeof(int)];
896 [data appendBytes:&col length:sizeof(int)];
897 [data appendBytes:&flags length:sizeof(int)];
899 [[self vimController] sendMessage:MouseUpMsgID data:data];
904 - (void)rightMouseUp:(NSEvent *)event
906 [self mouseUp:event];
909 - (void)otherMouseUp:(NSEvent *)event
911 [self mouseUp:event];
914 - (void)mouseDragged:(NSEvent *)event
916 int flags = [event modifierFlags];
918 NSPoint pt = [self convertPoint:[event locationInWindow] fromView:nil];
919 if (![self convertPoint:pt toRow:&row column:&col])
922 // Autoscrolling is done in dragTimerFired:
923 if (!isAutoscrolling) {
924 NSMutableData *data = [NSMutableData data];
926 [data appendBytes:&row length:sizeof(int)];
927 [data appendBytes:&col length:sizeof(int)];
928 [data appendBytes:&flags length:sizeof(int)];
930 [[self vimController] sendMessage:MouseDraggedMsgID data:data];
934 dragRow = row; dragColumn = col; dragFlags = flags;
936 [self startDragTimerWithInterval:.5];
941 - (void)rightMouseDragged:(NSEvent *)event
943 [self mouseDragged:event];
946 - (void)otherMouseDragged:(NSEvent *)event
948 [self mouseDragged:event];
951 - (void)mouseMoved:(NSEvent *)event
953 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
956 // HACK! NSTextView has a nasty habit of resetting the cursor to the
957 // default I-beam cursor at random moments. The only reliable way we know
958 // of to work around this is to set the cursor each time the mouse moves.
961 NSPoint pt = [self convertPoint:[event locationInWindow] fromView:nil];
963 if (![self convertPoint:pt toRow:&row column:&col])
966 // HACK! It seems impossible to get the tracking rects set up before the
967 // view is visible, which means that the first mouseEntered: or
968 // mouseExited: events are never received. This forces us to check if the
969 // mouseMoved: event really happened over the text.
971 [ts getMaxRows:&rows columns:&cols];
972 if (row >= 0 && row < rows && col >= 0 && col < cols) {
973 NSMutableData *data = [NSMutableData data];
975 [data appendBytes:&row length:sizeof(int)];
976 [data appendBytes:&col length:sizeof(int)];
978 [[self vimController] sendMessage:MouseMovedMsgID data:data];
980 //NSLog(@"Moved %d %d\n", col, row);
984 - (void)mouseEntered:(NSEvent *)event
986 //NSLog(@"%s", _cmd);
988 // NOTE: This event is received even when the window is not key; thus we
989 // have to take care not to enable mouse moved events unless our window is
991 if ([[self window] isKeyWindow]) {
992 [[self window] setAcceptsMouseMovedEvents:YES];
996 - (void)mouseExited:(NSEvent *)event
998 //NSLog(@"%s", _cmd);
1000 [[self window] setAcceptsMouseMovedEvents:NO];
1002 // NOTE: This event is received even when the window is not key; if the
1003 // mouse shape is set when our window is not key, the hollow (unfocused)
1004 // cursor will become a block (focused) cursor.
1005 if ([[self window] isKeyWindow]) {
1007 NSMutableData *data = [NSMutableData data];
1008 [data appendBytes:&shape length:sizeof(int)];
1009 [[self vimController] sendMessage:SetMouseShapeMsgID data:data];
1013 - (void)setFrame:(NSRect)frame
1015 //NSLog(@"%s", _cmd);
1017 // When the frame changes we also need to update the tracking rect.
1018 [super setFrame:frame];
1019 [self removeTrackingRect:trackingRectTag];
1020 trackingRectTag = [self addTrackingRect:[self trackingRect] owner:self
1021 userData:NULL assumeInside:YES];
1024 - (void)viewDidMoveToWindow
1026 //NSLog(@"%s (window=%@)", _cmd, [self window]);
1028 // Set a tracking rect which covers the text.
1029 // NOTE: While the mouse cursor is in this rect the view will receive
1030 // 'mouseMoved:' events so that Vim can take care of updating the mouse
1032 if ([self window]) {
1033 [[self window] setAcceptsMouseMovedEvents:YES];
1034 trackingRectTag = [self addTrackingRect:[self trackingRect] owner:self
1035 userData:NULL assumeInside:YES];
1039 - (void)viewWillMoveToWindow:(NSWindow *)newWindow
1041 //NSLog(@"%s%@", _cmd, newWindow);
1043 // Remove tracking rect if view moves or is removed.
1044 if ([self window] && trackingRectTag) {
1045 [self removeTrackingRect:trackingRectTag];
1046 trackingRectTag = 0;
1050 - (NSMenu*)menuForEvent:(NSEvent *)event
1052 // HACK! Return nil to disable NSTextView's popup menus (Vim provides its
1053 // own). Called when user Ctrl-clicks in the view (this is already handled
1054 // in rightMouseDown:).
1058 - (NSArray *)acceptableDragTypes
1060 return [NSArray arrayWithObjects:NSFilenamesPboardType,
1061 NSStringPboardType, nil];
1064 - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
1066 NSPasteboard *pboard = [sender draggingPasteboard];
1068 if ([[pboard types] containsObject:NSStringPboardType]) {
1069 NSString *string = [pboard stringForType:NSStringPboardType];
1070 [[self vimController] dropString:string];
1072 } else if ([[pboard types] containsObject:NSFilenamesPboardType]) {
1073 NSArray *files = [pboard propertyListForType:NSFilenamesPboardType];
1074 [[self vimController] dropFiles:files forceOpen:NO];
1081 - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
1083 NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
1084 NSPasteboard *pboard = [sender draggingPasteboard];
1086 if ( [[pboard types] containsObject:NSFilenamesPboardType]
1087 && (sourceDragMask & NSDragOperationCopy) )
1088 return NSDragOperationCopy;
1089 if ( [[pboard types] containsObject:NSStringPboardType]
1090 && (sourceDragMask & NSDragOperationCopy) )
1091 return NSDragOperationCopy;
1093 return NSDragOperationNone;
1096 - (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
1098 NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
1099 NSPasteboard *pboard = [sender draggingPasteboard];
1101 if ( [[pboard types] containsObject:NSFilenamesPboardType]
1102 && (sourceDragMask & NSDragOperationCopy) )
1103 return NSDragOperationCopy;
1104 if ( [[pboard types] containsObject:NSStringPboardType]
1105 && (sourceDragMask & NSDragOperationCopy) )
1106 return NSDragOperationCopy;
1108 return NSDragOperationNone;
1111 - (void)changeFont:(id)sender
1113 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
1116 NSFont *oldFont = [ts font];
1117 NSFont *newFont = [sender convertFont:oldFont];
1120 NSString *name = [newFont displayName];
1121 unsigned len = [name lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
1123 NSMutableData *data = [NSMutableData data];
1124 float pointSize = [newFont pointSize];
1126 [data appendBytes:&pointSize length:sizeof(float)];
1128 ++len; // include NUL byte
1129 [data appendBytes:&len length:sizeof(unsigned)];
1130 [data appendBytes:[name UTF8String] length:len];
1132 [[self vimController] sendMessage:SetFontMsgID data:data];
1137 - (void)resetCursorRects
1139 // No need to set up cursor rects since Vim handles cursor changes.
1142 - (void)updateFontPanel
1144 // The font panel is updated whenever the font is set.
1149 // NOTE: The menu items cut/copy/paste/undo/redo/select all/... must be bound
1150 // to the same actions as in IB otherwise they will not work with dialogs. All
1151 // we do here is forward these actions to the Vim process.
1153 - (IBAction)cut:(id)sender
1155 [[self windowController] vimMenuItemAction:sender];
1158 - (IBAction)copy:(id)sender
1160 [[self windowController] vimMenuItemAction:sender];
1163 - (IBAction)paste:(id)sender
1165 [[self windowController] vimMenuItemAction:sender];
1168 - (IBAction)undo:(id)sender
1170 [[self windowController] vimMenuItemAction:sender];
1173 - (IBAction)redo:(id)sender
1175 [[self windowController] vimMenuItemAction:sender];
1178 - (IBAction)selectAll:(id)sender
1180 [[self windowController] vimMenuItemAction:sender];
1183 - (BOOL)validateMenuItem:(NSMenuItem *)item
1185 if ([item action] == @selector(cut:)
1186 || [item action] == @selector(copy:)
1187 || [item action] == @selector(paste:)
1188 || [item action] == @selector(undo:)
1189 || [item action] == @selector(redo:)
1190 || [item action] == @selector(selectAll:))
1200 @implementation MMTextView (Private)
1204 static NSCursor *customIbeamCursor = nil;
1206 if (!customIbeamCursor) {
1207 // Use a custom Ibeam cursor that has better contrast against dark
1209 // TODO: Is the hotspot ok?
1210 NSImage *ibeamImage = [NSImage imageNamed:@"ibeam"];
1212 NSSize size = [ibeamImage size];
1213 NSPoint hotSpot = { size.width*.5f, size.height*.5f };
1215 customIbeamCursor = [[NSCursor alloc]
1216 initWithImage:ibeamImage hotSpot:hotSpot];
1218 if (!customIbeamCursor) {
1219 NSLog(@"WARNING: Failed to load custom Ibeam cursor");
1220 customIbeamCursor = [NSCursor IBeamCursor];
1224 // This switch should match mshape_names[] in misc2.c.
1226 // TODO: Add missing cursor shapes.
1227 switch (mouseShape) {
1228 case 2: [customIbeamCursor set]; break;
1229 case 3: case 4: [[NSCursor resizeUpDownCursor] set]; break;
1230 case 5: case 6: [[NSCursor resizeLeftRightCursor] set]; break;
1231 case 9: [[NSCursor crosshairCursor] set]; break;
1232 case 10: [[NSCursor pointingHandCursor] set]; break;
1233 case 11: [[NSCursor openHandCursor] set]; break;
1235 [[NSCursor arrowCursor] set]; break;
1238 // Shape 1 indicates that the mouse cursor should be hidden.
1239 if (1 == mouseShape)
1240 [NSCursor setHiddenUntilMouseMoves:YES];
1243 - (BOOL)convertPoint:(NSPoint)point toRow:(int *)row column:(int *)column
1245 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
1246 NSSize cellSize = [ts cellSize];
1247 if (!(cellSize.width > 0 && cellSize.height > 0))
1249 NSPoint origin = [self textContainerOrigin];
1251 if (row) *row = floor((point.y-origin.y-1) / cellSize.height);
1252 if (column) *column = floor((point.x-origin.x-1) / cellSize.width);
1254 //NSLog(@"convertPoint:%@ toRow:%d column:%d", NSStringFromPoint(point),
1260 - (BOOL)convertRow:(int)row column:(int)column toPoint:(NSPoint *)point
1262 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
1263 NSSize cellSize = [ts cellSize];
1264 if (!(point && cellSize.width > 0 && cellSize.height > 0))
1267 *point = [self textContainerOrigin];
1268 point->x += column * cellSize.width;
1269 point->y += row * cellSize.height;
1274 - (BOOL)convertRow:(int)row column:(int)column numRows:(int)nr
1275 numColumns:(int)nc toRect:(NSRect *)rect
1277 MMTextStorage *ts = (MMTextStorage*)[self textStorage];
1278 NSSize cellSize = [ts cellSize];
1279 if (!(rect && cellSize.width > 0 && cellSize.height > 0))
1282 rect->origin = [self textContainerOrigin];
1283 rect->origin.x += column * cellSize.width;
1284 rect->origin.y += row * cellSize.height;
1285 rect->size.width = cellSize.width * nc;
1286 rect->size.height = cellSize.height * nr;
1291 - (NSRect)trackingRect
1293 NSRect rect = [self frame];
1294 NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
1295 int left = [ud integerForKey:MMTextInsetLeftKey];
1296 int top = [ud integerForKey:MMTextInsetTopKey];
1297 int right = [ud integerForKey:MMTextInsetRightKey];
1298 int bot = [ud integerForKey:MMTextInsetBottomKey];
1300 rect.origin.x = left;
1301 rect.origin.y = top;
1302 rect.size.width -= left + right - 1;
1303 rect.size.height -= top + bot - 1;
1308 - (void)dispatchKeyEvent:(NSEvent *)event
1310 // Only handle the command if it came from a keyDown event
1311 if ([event type] != NSKeyDown)
1314 NSString *chars = [event characters];
1315 NSString *unmodchars = [event charactersIgnoringModifiers];
1316 unichar c = [chars characterAtIndex:0];
1317 unichar imc = [unmodchars characterAtIndex:0];
1319 const char *bytes = 0;
1320 int mods = [event modifierFlags];
1322 //NSLog(@"%s chars[0]=0x%x unmodchars[0]=0x%x (chars=%@ unmodchars=%@)",
1323 // _cmd, c, imc, chars, unmodchars);
1325 if (' ' == imc && 0xa0 != c) {
1326 // HACK! The AppKit turns <C-Space> into <C-@> which is not standard
1327 // Vim behaviour, so bypass this problem. (0xa0 is <M-Space>, which
1328 // should be passed on as is.)
1329 len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
1330 bytes = [unmodchars UTF8String];
1331 } else if (imc == c && '2' == c) {
1332 // HACK! Translate Ctrl+2 to <C-@>.
1333 static char ctrl_at = 0;
1334 len = 1; bytes = &ctrl_at;
1335 } else if (imc == c && '6' == c) {
1336 // HACK! Translate Ctrl+6 to <C-^>.
1337 static char ctrl_hat = 0x1e;
1338 len = 1; bytes = &ctrl_hat;
1339 } else if (c == 0x19 && imc == 0x19) {
1340 // HACK! AppKit turns back tab into Ctrl-Y, so we need to handle it
1341 // separately (else Ctrl-Y doesn't work).
1342 static char tab = 0x9;
1343 len = 1; bytes = &tab; mods |= NSShiftKeyMask;
1345 len = [chars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
1346 bytes = [chars UTF8String];
1349 [self sendKeyDown:bytes length:len modifiers:mods];
1352 - (MMWindowController *)windowController
1354 id windowController = [[self window] windowController];
1355 if ([windowController isKindOfClass:[MMWindowController class]])
1356 return (MMWindowController*)windowController;
1360 - (MMVimController *)vimController
1362 return [[self windowController] vimController];
1365 - (void)startDragTimerWithInterval:(NSTimeInterval)t
1367 [NSTimer scheduledTimerWithTimeInterval:t target:self
1368 selector:@selector(dragTimerFired:)
1369 userInfo:nil repeats:NO];
1372 - (void)dragTimerFired:(NSTimer *)timer
1374 // TODO: Autoscroll in horizontal direction?
1375 static unsigned tick = 1;
1376 MMTextStorage *ts = (MMTextStorage *)[self textStorage];
1378 isAutoscrolling = NO;
1380 if (isDragging && ts && (dragRow < 0 || dragRow >= [ts maxRows])) {
1381 // HACK! If the mouse cursor is outside the text area, then send a
1382 // dragged event. However, if row&col hasn't changed since the last
1383 // dragged event, Vim won't do anything (see gui_send_mouse_event()).
1384 // Thus we fiddle with the column to make sure something happens.
1385 int col = dragColumn + (dragRow < 0 ? -(tick % 2) : +(tick % 2));
1386 NSMutableData *data = [NSMutableData data];
1388 [data appendBytes:&dragRow length:sizeof(int)];
1389 [data appendBytes:&col length:sizeof(int)];
1390 [data appendBytes:&dragFlags length:sizeof(int)];
1392 [[self vimController] sendMessage:MouseDraggedMsgID data:data];
1394 isAutoscrolling = YES;
1398 // Compute timer interval depending on how far away the mouse cursor is
1399 // from the text view.
1400 NSRect rect = [self trackingRect];
1402 if (dragPoint.y < rect.origin.y) dy = rect.origin.y - dragPoint.y;
1403 else if (dragPoint.y > NSMaxY(rect)) dy = dragPoint.y - NSMaxY(rect);
1404 if (dy > MMDragAreaSize) dy = MMDragAreaSize;
1406 NSTimeInterval t = MMDragTimerMaxInterval -
1407 dy*(MMDragTimerMaxInterval-MMDragTimerMinInterval)/MMDragAreaSize;
1409 [self startDragTimerWithInterval:t];
1415 - (void)sendKeyDown:(const char *)chars length:(int)len modifiers:(int)flags
1417 if (chars && len > 0) {
1418 NSMutableData *data = [NSMutableData data];
1420 [data appendBytes:&flags length:sizeof(int)];
1421 [data appendBytes:&len length:sizeof(int)];
1422 [data appendBytes:chars length:len];
1424 [self hideMouseCursor];
1426 //NSLog(@"%s len=%d chars=0x%x", _cmd, len, chars[0]);
1427 [[self vimController] sendMessage:KeyDownMsgID data:data];
1431 - (void)hideMouseCursor
1433 // Check 'mousehide' option
1434 id mh = [[[self vimController] vimState] objectForKey:@"p_mh"];
1435 if (mh && ![mh boolValue])
1436 [NSCursor setHiddenUntilMouseMoves:NO];
1438 [NSCursor setHiddenUntilMouseMoves:YES];
1441 - (void)drawInsertionPointAtRow:(int)row column:(int)col shape:(int)shape
1442 fraction:(int)percent color:(NSColor *)color
1444 //NSLog(@"drawInsertionPointAtRow:%d column:%d shape:%d color:%@",
1445 // row, col, shape, color);
1447 // This only stores where to draw the insertion point, the actual drawing
1448 // is done in drawRect:.
1449 shouldDrawInsertionPoint = YES;
1450 insertionPointRow = row;
1451 insertionPointColumn = col;
1452 insertionPointShape = shape;
1453 insertionPointFraction = percent;
1455 [self setInsertionPointColor:color];
1458 - (void)drawInvertedRectAtRow:(int)row column:(int)col numRows:(int)nrows
1459 numColumns:(int)ncols invert:(int)invert
1462 // The result should be inverted.
1463 int n = numInvertRects++;
1464 invertRects = reallocf(invertRects,
1465 numInvertRects*sizeof(NSRect));
1466 if (NULL != invertRects) {
1467 [self convertRow:row column:col numRows:nrows numColumns:ncols
1468 toRect:&invertRects[n]];
1469 [self setNeedsDisplayInRect:invertRects[n]];
1471 n = numInvertRects = 0;
1474 // The result should look normal; all we need to do is to mark
1475 // the rect for redrawing and Cocoa will redraw the text.
1477 [self convertRow:row column:col numRows:nrows numColumns:ncols
1479 [self setNeedsDisplayInRect:rect];
1483 @end // MMTextView (Private)