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
14 * files onto window. The rendering is done using ATSUI.
16 * The text view area consists of two parts:
17 * 1. The text area - this is where text is rendered; the size is governed by
18 * the current number of rows and columns.
19 * 2. The inset area - this is a border around the text area; the size is
20 * governed by the user defaults MMTextInset[Left|Right|Top|Bottom].
22 * The current size of the text view frame does not always match the desired
23 * area, i.e. the area determined by the number of rows, columns plus text
24 * inset. This distinction is particularly important when the view is being
28 #import "MMAppController.h"
29 #import "MMAtsuiTextView.h"
30 #import "MMTextViewHelper.h"
31 #import "MMVimController.h"
32 #import "MMWindowController.h"
33 #import "Miscellaneous.h"
36 // TODO: What does DRAW_TRANSP flag do? If the background isn't drawn when
37 // this flag is set, then sometimes the character after the cursor becomes
38 // blank. Everything seems to work fine by just ignoring this flag.
39 #define DRAW_TRANSP 0x01 /* draw with transparant bg */
40 #define DRAW_BOLD 0x02 /* draw bold text */
41 #define DRAW_UNDERL 0x04 /* draw underline text */
42 #define DRAW_UNDERC 0x08 /* draw undercurl text */
43 #define DRAW_ITALIC 0x10 /* draw italic text */
44 #define DRAW_CURSOR 0x20
46 #define kUnderlineOffset (-2)
47 #define kUnderlineHeight 1
48 #define kUndercurlHeight 2
49 #define kUndercurlOffset (-2)
50 #define kUndercurlDotWidth 2
51 #define kUndercurlDotDistance 2
54 @interface NSFont (AppKitPrivate)
55 - (ATSUFontID) _atsFontID;
59 @interface MMAtsuiTextView (Private)
60 - (void)initAtsuStyles;
61 - (void)disposeAtsuStyles;
62 - (void)updateAtsuStyles;
63 - (MMWindowController *)windowController;
64 - (MMVimController *)vimController;
68 @interface MMAtsuiTextView (Drawing)
69 - (NSPoint)originForRow:(int)row column:(int)column;
70 - (NSRect)rectFromRow:(int)row1 column:(int)col1
71 toRow:(int)row2 column:(int)col2;
72 - (NSSize)textAreaSize;
73 - (void)resizeContentImage;
76 - (void)drawString:(UniChar *)string length:(UniCharCount)length
77 atRow:(int)row column:(int)col cells:(int)cells
78 withFlags:(int)flags foregroundColor:(NSColor *)fg
79 backgroundColor:(NSColor *)bg specialColor:(NSColor *)sp;
80 - (void)deleteLinesFromRow:(int)row lineCount:(int)count
81 scrollBottom:(int)bottom left:(int)left right:(int)right
82 color:(NSColor *)color;
83 - (void)insertLinesAtRow:(int)row lineCount:(int)count
84 scrollBottom:(int)bottom left:(int)left right:(int)right
85 color:(NSColor *)color;
86 - (void)clearBlockFromRow:(int)row1 column:(int)col1 toRow:(int)row2
87 column:(int)col2 color:(NSColor *)color;
89 - (void)drawInsertionPointAtRow:(int)row column:(int)col shape:(int)shape
90 fraction:(int)percent;
91 - (void)drawInvertedRectAtRow:(int)row column:(int)col numRows:(int)nrows
92 numColumns:(int)ncols;
98 defaultLineHeightForFont(NSFont *font)
100 // HACK: -[NSFont defaultLineHeightForFont] is deprecated but since the
101 // ATSUI renderer does not use NSLayoutManager we create one temporarily.
102 NSLayoutManager *lm = [[NSLayoutManager alloc] init];
103 float height = [lm defaultLineHeightForFont:font];
109 @implementation MMAtsuiTextView
111 - (id)initWithFrame:(NSRect)frame
113 if (!(self = [super initWithFrame:frame]))
116 // NOTE! It does not matter which font is set here, Vim will set its
117 // own font on startup anyway. Just set some bogus values.
118 font = [[NSFont userFixedPitchFontOfSize:0] retain];
120 cellSize.width = cellSize.height = 1;
122 imageSize = NSZeroSize;
123 insetSize = NSZeroSize;
125 // NOTE: If the default changes to 'NO' then the intialization of
126 // p_antialias in option.c must change as well.
129 helper = [[MMTextViewHelper alloc] init];
130 [helper setTextView:self];
132 [self initAtsuStyles];
134 [self registerForDraggedTypes:[NSArray arrayWithObjects:
135 NSFilenamesPboardType, NSStringPboardType, nil]];
144 [self disposeAtsuStyles];
145 [font release]; font = nil;
146 [defaultBackgroundColor release]; defaultBackgroundColor = nil;
147 [defaultForegroundColor release]; defaultForegroundColor = nil;
149 [helper setTextView:nil];
150 [helper dealloc]; helper = nil;
165 - (void)getMaxRows:(int*)rows columns:(int*)cols
167 if (rows) *rows = maxRows;
168 if (cols) *cols = maxColumns;
171 - (void)setMaxRows:(int)rows columns:(int)cols
173 // NOTE: Just remember the new values, the actual resizing is done lazily.
178 - (void)setDefaultColorsBackground:(NSColor *)bgColor
179 foreground:(NSColor *)fgColor
181 if (defaultBackgroundColor != bgColor) {
182 [defaultBackgroundColor release];
183 defaultBackgroundColor = bgColor ? [bgColor retain] : nil;
186 if (defaultForegroundColor != fgColor) {
187 [defaultForegroundColor release];
188 defaultForegroundColor = fgColor ? [fgColor retain] : nil;
192 - (NSColor *)defaultBackgroundColor
194 return defaultBackgroundColor;
197 - (NSColor *)defaultForegroundColor
199 return defaultForegroundColor;
202 - (void)setTextContainerInset:(NSSize)size
207 - (NSRect)rectForRowsInRange:(NSRange)range
209 NSRect rect = { 0, 0, 0, 0 };
210 unsigned start = range.location > maxRows ? maxRows : range.location;
211 unsigned length = range.length;
213 if (start + length > maxRows)
214 length = maxRows - start;
216 rect.origin.y = cellSize.height * start + insetSize.height;
217 rect.size.height = cellSize.height * length;
222 - (NSRect)rectForColumnsInRange:(NSRange)range
224 NSRect rect = { 0, 0, 0, 0 };
225 unsigned start = range.location > maxColumns ? maxColumns : range.location;
226 unsigned length = range.length;
228 if (start+length > maxColumns)
229 length = maxColumns - start;
231 rect.origin.x = cellSize.width * start + insetSize.width;
232 rect.size.width = cellSize.width * length;
238 - (void)setFont:(NSFont *)newFont
240 if (newFont && font != newFont) {
242 font = [newFont retain];
243 ascender = roundf([font ascender]);
245 float em = [@"m" sizeWithAttributes:
246 [NSDictionary dictionaryWithObject:newFont
247 forKey:NSFontAttributeName]].width;
248 float cellWidthMultiplier = [[NSUserDefaults standardUserDefaults]
249 floatForKey:MMCellWidthMultiplierKey];
251 // NOTE! Even though NSFontFixedAdvanceAttribute is a float, it will
252 // only render at integer sizes. Hence, we restrict the cell width to
253 // an integer here, otherwise the window width and the actual text
254 // width will not match.
255 cellSize.width = ceilf(em * cellWidthMultiplier);
256 cellSize.height = linespace + defaultLineHeightForFont(newFont);
258 [self updateAtsuStyles];
262 - (void)setWideFont:(NSFont *)newFont
265 if (font) [self setWideFont:font];
266 } else if (newFont != fontWide) {
267 float pointSize = [newFont pointSize];
268 NSFontDescriptor *desc = [newFont fontDescriptor];
269 NSDictionary *dictWide = [NSDictionary
270 dictionaryWithObject:[NSNumber numberWithFloat:2*cellSize.width]
271 forKey:NSFontFixedAdvanceAttribute];
272 desc = [desc fontDescriptorByAddingAttributes:dictWide];
273 fontWide = [NSFont fontWithDescriptor:desc size:pointSize];
293 - (void)setLinespace:(float)newLinespace
295 linespace = newLinespace;
297 // NOTE: The linespace is added to the cell height in order for a multiline
298 // selection not to have white (background color) gaps between lines. Also
299 // this simplifies the code a lot because there is no need to check the
300 // linespace when calculating the size of the text view etc. When the
301 // linespace is non-zero the baseline will be adjusted as well; check
303 cellSize.height = linespace + defaultLineHeightForFont(font);
308 - (void)setShouldDrawInsertionPoint:(BOOL)on
312 - (void)setPreEditRow:(int)row column:(int)col
314 [helper setPreEditRow:row column:col];
317 - (void)setMouseShape:(int)shape
319 [helper setMouseShape:shape];
322 - (void)setAntialias:(BOOL)state
327 - (void)keyDown:(NSEvent *)event
329 [helper keyDown:event];
332 - (void)insertText:(id)string
334 [helper insertText:string];
337 - (void)doCommandBySelector:(SEL)selector
339 [helper doCommandBySelector:selector];
342 - (BOOL)performKeyEquivalent:(NSEvent *)event
344 return [helper performKeyEquivalent:event];
347 - (BOOL)hasMarkedText
349 return [helper hasMarkedText];
352 - (NSRange)markedRange
354 return [helper markedRange];
357 - (NSDictionary *)markedTextAttributes
359 return [helper markedTextAttributes];
362 - (void)setMarkedTextAttributes:(NSDictionary *)attr
364 [helper setMarkedTextAttributes:attr];
367 - (void)setMarkedText:(id)text selectedRange:(NSRange)range
369 [helper setMarkedText:text selectedRange:range];
377 - (void)scrollWheel:(NSEvent *)event
379 [helper scrollWheel:event];
382 - (void)mouseDown:(NSEvent *)event
384 [helper mouseDown:event];
387 - (void)rightMouseDown:(NSEvent *)event
389 [helper mouseDown:event];
392 - (void)otherMouseDown:(NSEvent *)event
394 [helper mouseDown:event];
397 - (void)mouseUp:(NSEvent *)event
399 [helper mouseUp:event];
402 - (void)rightMouseUp:(NSEvent *)event
404 [helper mouseUp:event];
407 - (void)otherMouseUp:(NSEvent *)event
409 [helper mouseUp:event];
412 - (void)mouseDragged:(NSEvent *)event
414 [helper mouseDragged:event];
417 - (void)rightMouseDragged:(NSEvent *)event
419 [helper mouseDragged:event];
422 - (void)otherMouseDragged:(NSEvent *)event
424 [helper mouseDragged:event];
427 - (void)mouseMoved:(NSEvent *)event
429 [helper mouseMoved:event];
432 - (void)mouseEntered:(NSEvent *)event
434 [helper mouseEntered:event];
437 - (void)mouseExited:(NSEvent *)event
439 [helper mouseExited:event];
442 - (void)setFrame:(NSRect)frame
444 [super setFrame:frame];
445 [helper setFrame:frame];
448 - (void)viewDidMoveToWindow
450 [helper viewDidMoveToWindow];
453 - (void)viewWillMoveToWindow:(NSWindow *)newWindow
455 [helper viewWillMoveToWindow:newWindow];
458 - (NSMenu*)menuForEvent:(NSEvent *)event
460 // HACK! Return nil to disable default popup menus (Vim provides its own).
461 // Called when user Ctrl-clicks in the view (this is already handled in
466 - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
468 return [helper performDragOperation:sender];
471 - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
473 return [helper draggingEntered:sender];
476 - (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
478 return [helper draggingUpdated:sender];
483 - (BOOL)mouseDownCanMoveWindow
493 - (BOOL)acceptsFirstResponder
503 - (void)drawRect:(NSRect)rect
505 [defaultBackgroundColor set];
508 NSPoint pt = { insetSize.width, insetSize.height };
509 [contentImage compositeToPoint:pt operation:NSCompositeCopy];
511 if ([self hasMarkedText]) {
512 int len = [[helper markedText] length];
514 int cols = maxColumns - [helper preEditColumn];
515 NSFont *theFont = [[self markedTextAttributes]
516 valueForKey:NSFontAttributeName];
517 if (theFont == [self fontWide])
520 int lend = cols > len ? len : cols;
521 NSAttributedString *aString = [[helper markedText]
522 attributedSubstringFromRange:NSMakeRange(done, lend)];
523 NSPoint pt = [self pointForRow:[helper preEditRow]
524 column:[helper preEditColumn]];
525 [aString drawAtPoint:pt];
529 rows = (len - done) / (maxColumns / 2) + 1;
530 for (r = 1; r <= rows; r++) {
531 lend = len - done > maxColumns / 2
532 ? maxColumns / 2 : len - done;
533 aString = [[helper markedText] attributedSubstringFromRange:
534 NSMakeRange(done, lend)];
535 NSPoint pt = [self pointForRow:[helper preEditRow]+r
537 [aString drawAtPoint:pt];
542 rows = maxRows - 1 - [helper preEditRow];
543 cols = [helper preEditColumn];
544 if (theFont == fontWide) {
545 cols += ([helper imRange].location+[helper imRange].length) * 2;
546 if (cols >= maxColumns - 1) {
547 rows -= cols / maxColumns;
548 cols = cols % 2 ? cols % maxColumns + 1 :
552 cols += ([helper imRange].location+[helper imRange].length);
553 if (cols >= maxColumns) {
554 rows -= cols / maxColumns;
555 cols = cols % 2 ? cols % maxColumns + 1 :
560 // TODO: Could IM be in "right-left" mode? If so the insertion point
561 // will be on the wrong side.
562 [self drawInsertionPointAtRow:rows
564 shape:MMInsertionPointVertical
569 - (BOOL) wantsDefaultClipping
575 #define MM_DEBUG_DRAWING 0
577 - (void)performBatchDrawWithData:(NSData *)data
579 const void *bytes = [data bytes];
580 const void *end = bytes + [data length];
582 if (! NSEqualSizes(imageSize, [self textAreaSize]))
583 [self resizeContentImage];
586 NSLog(@"====> BEGIN %s", _cmd);
590 // TODO: Sanity check input
592 while (bytes < end) {
593 int type = *((int*)bytes); bytes += sizeof(int);
595 if (ClearAllDrawType == type) {
597 NSLog(@" Clear all");
600 } else if (ClearBlockDrawType == type) {
601 unsigned color = *((unsigned*)bytes); bytes += sizeof(unsigned);
602 int row1 = *((int*)bytes); bytes += sizeof(int);
603 int col1 = *((int*)bytes); bytes += sizeof(int);
604 int row2 = *((int*)bytes); bytes += sizeof(int);
605 int col2 = *((int*)bytes); bytes += sizeof(int);
608 NSLog(@" Clear block (%d,%d) -> (%d,%d)", row1, col1,
611 [self clearBlockFromRow:row1 column:col1
612 toRow:row2 column:col2
613 color:[NSColor colorWithArgbInt:color]];
614 } else if (DeleteLinesDrawType == type) {
615 unsigned color = *((unsigned*)bytes); bytes += sizeof(unsigned);
616 int row = *((int*)bytes); bytes += sizeof(int);
617 int count = *((int*)bytes); bytes += sizeof(int);
618 int bot = *((int*)bytes); bytes += sizeof(int);
619 int left = *((int*)bytes); bytes += sizeof(int);
620 int right = *((int*)bytes); bytes += sizeof(int);
623 NSLog(@" Delete %d line(s) from %d", count, row);
625 [self deleteLinesFromRow:row lineCount:count
626 scrollBottom:bot left:left right:right
627 color:[NSColor colorWithArgbInt:color]];
628 } else if (DrawStringDrawType == type) {
629 int bg = *((int*)bytes); bytes += sizeof(int);
630 int fg = *((int*)bytes); bytes += sizeof(int);
631 int sp = *((int*)bytes); bytes += sizeof(int);
632 int row = *((int*)bytes); bytes += sizeof(int);
633 int col = *((int*)bytes); bytes += sizeof(int);
634 int cells = *((int*)bytes); bytes += sizeof(int);
635 int flags = *((int*)bytes); bytes += sizeof(int);
636 int len = *((int*)bytes); bytes += sizeof(int);
637 // UniChar *string = (UniChar*)bytes; bytes += len;
638 NSString *string = [[NSString alloc]
639 initWithBytesNoCopy:(void*)bytes
641 encoding:NSUTF8StringEncoding
645 NSLog(@" Draw string at (%d,%d) length=%d flags=%d fg=0x%x "
646 "bg=0x%x sp=0x%x", row, col, len, flags, fg, bg, sp);
648 unichar *characters = malloc(sizeof(unichar) * [string length]);
649 [string getCharacters:characters];
651 [self drawString:characters
652 length:[string length]
655 cells:cells withFlags:flags
656 foregroundColor:[NSColor colorWithRgbInt:fg]
657 backgroundColor:[NSColor colorWithArgbInt:bg]
658 specialColor:[NSColor colorWithRgbInt:sp]];
661 } else if (InsertLinesDrawType == type) {
662 unsigned color = *((unsigned*)bytes); bytes += sizeof(unsigned);
663 int row = *((int*)bytes); bytes += sizeof(int);
664 int count = *((int*)bytes); bytes += sizeof(int);
665 int bot = *((int*)bytes); bytes += sizeof(int);
666 int left = *((int*)bytes); bytes += sizeof(int);
667 int right = *((int*)bytes); bytes += sizeof(int);
670 NSLog(@" Insert %d line(s) at row %d", count, row);
672 [self insertLinesAtRow:row lineCount:count
673 scrollBottom:bot left:left right:right
674 color:[NSColor colorWithArgbInt:color]];
675 } else if (DrawCursorDrawType == type) {
676 unsigned color = *((unsigned*)bytes); bytes += sizeof(unsigned);
677 int row = *((int*)bytes); bytes += sizeof(int);
678 int col = *((int*)bytes); bytes += sizeof(int);
679 int shape = *((int*)bytes); bytes += sizeof(int);
680 int percent = *((int*)bytes); bytes += sizeof(int);
683 NSLog(@" Draw cursor at (%d,%d)", row, col);
685 [helper setInsertionPointColor:[NSColor colorWithRgbInt:color]];
686 [self drawInsertionPointAtRow:row column:col shape:shape
688 } else if (DrawInvertedRectDrawType == type) {
689 int row = *((int*)bytes); bytes += sizeof(int);
690 int col = *((int*)bytes); bytes += sizeof(int);
691 int nr = *((int*)bytes); bytes += sizeof(int);
692 int nc = *((int*)bytes); bytes += sizeof(int);
693 /*int invert = *((int*)bytes);*/ bytes += sizeof(int);
696 NSLog(@" Draw inverted rect: row=%d col=%d nrows=%d ncols=%d",
699 [self drawInvertedRectAtRow:row column:col numRows:nr
701 } else if (SetCursorPosDrawType == type) {
702 // TODO: This is used for Voice Over support in MMTextView,
703 // MMAtsuiTextView currently does not support Voice Over.
704 /*cursorRow = *((int*)bytes);*/ bytes += sizeof(int);
705 /*cursorCol = *((int*)bytes);*/ bytes += sizeof(int);
707 NSLog(@"WARNING: Unknown draw type (type=%d)", type);
713 // NOTE: During resizing, Cocoa only sends draw messages before Vim's rows
714 // and columns are changed (due to ipc delays). Force a redraw here.
715 [self setNeedsDisplay:YES];
716 // [self displayIfNeeded];
719 NSLog(@"<==== END %s", _cmd);
723 - (NSSize)constrainRows:(int *)rows columns:(int *)cols toSize:(NSSize)size
726 // - Rounding errors may cause size change when there should be none
727 // - Desired rows/columns shold not be 'too small'
729 // Constrain the desired size to the given size. Values for the minimum
730 // rows and columns is taken from Vim.
731 NSSize desiredSize = [self desiredSize];
732 int desiredRows = maxRows;
733 int desiredCols = maxColumns;
735 if (size.height != desiredSize.height) {
736 float fh = cellSize.height;
737 float ih = 2 * insetSize.height;
738 if (fh < 1.0f) fh = 1.0f;
740 desiredRows = floor((size.height - ih)/fh);
741 desiredSize.height = fh*desiredRows + ih;
744 if (size.width != desiredSize.width) {
745 float fw = cellSize.width;
746 float iw = 2 * insetSize.width;
747 if (fw < 1.0f) fw = 1.0f;
749 desiredCols = floor((size.width - iw)/fw);
750 desiredSize.width = fw*desiredCols + iw;
753 if (rows) *rows = desiredRows;
754 if (cols) *cols = desiredCols;
759 - (NSSize)desiredSize
761 // Compute the size the text view should be for the entire text area and
762 // inset area to be visible with the present number of rows and columns.
763 return NSMakeSize(maxColumns * cellSize.width + 2 * insetSize.width,
764 maxRows * cellSize.height + 2 * insetSize.height);
769 // Compute the smallest size the text view is allowed to be.
770 return NSMakeSize(MMMinColumns * cellSize.width + 2 * insetSize.width,
771 MMMinRows * cellSize.height + 2 * insetSize.height);
774 - (void)changeFont:(id)sender
776 NSFont *newFont = [sender convertFont:font];
779 NSString *name = [newFont displayName];
780 unsigned len = [name lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
782 NSMutableData *data = [NSMutableData data];
783 float pointSize = [newFont pointSize];
785 [data appendBytes:&pointSize length:sizeof(float)];
787 ++len; // include NUL byte
788 [data appendBytes:&len length:sizeof(unsigned)];
789 [data appendBytes:[name UTF8String] length:len];
791 [[self vimController] sendMessage:SetFontMsgID data:data];
798 // NOTE: The menu items cut/copy/paste/undo/redo/select all/... must be bound
799 // to the same actions as in IB otherwise they will not work with dialogs. All
800 // we do here is forward these actions to the Vim process.
802 - (IBAction)cut:(id)sender
804 [[self windowController] vimMenuItemAction:sender];
807 - (IBAction)copy:(id)sender
809 [[self windowController] vimMenuItemAction:sender];
812 - (IBAction)paste:(id)sender
814 [[self windowController] vimMenuItemAction:sender];
817 - (IBAction)undo:(id)sender
819 [[self windowController] vimMenuItemAction:sender];
822 - (IBAction)redo:(id)sender
824 [[self windowController] vimMenuItemAction:sender];
827 - (IBAction)selectAll:(id)sender
829 [[self windowController] vimMenuItemAction:sender];
832 - (BOOL)convertPoint:(NSPoint)point toRow:(int *)row column:(int *)column
834 // View is not flipped, instead the atsui code draws to a flipped image;
835 // thus we need to 'flip' the coordinate here since the column number
836 // increases in an up-to-down order.
837 point.y = [self frame].size.height - point.y;
839 NSPoint origin = { insetSize.width, insetSize.height };
841 if (!(cellSize.width > 0 && cellSize.height > 0))
844 if (row) *row = floor((point.y-origin.y-1) / cellSize.height);
845 if (column) *column = floor((point.x-origin.x-1) / cellSize.width);
850 - (NSPoint)pointForRow:(int)row column:(int)col
852 // Return the lower left coordinate of the cell at (row,column).
855 pt.x = insetSize.width + col*cellSize.width;
856 pt.y = [self frame].size.height -
857 (insetSize.height + (1+row)*cellSize.height);
862 - (NSRect)rectForRow:(int)row column:(int)col numRows:(int)nr
865 // Return the rect for the block which covers the specified rows and
866 // columns. The lower-left corner is the origin of this rect.
869 rect.origin.x = insetSize.width + col*cellSize.width;
870 rect.origin.y = [self frame].size.height -
871 (insetSize.height + (nr+row)*cellSize.height);
872 rect.size.width = nc*cellSize.width;
873 rect.size.height = nr*cellSize.height;
878 - (NSArray *)validAttributesForMarkedText
883 - (NSAttributedString *)attributedSubstringFromRange:(NSRange)range
888 - (NSUInteger)characterIndexForPoint:(NSPoint)point
893 - (NSInteger)conversationIdentifier
895 return (NSInteger)self;
898 - (NSRange)selectedRange
900 return [helper imRange];
903 - (NSRect)firstRectForCharacterRange:(NSRange)range
905 return [helper firstRectForCharacterRange:range];
908 @end // MMAtsuiTextView
913 @implementation MMAtsuiTextView (Private)
915 - (void)initAtsuStyles
918 for (i = 0; i < MMMaxCellsPerChar; i++)
919 ATSUCreateStyle(&atsuStyles[i]);
922 - (void)disposeAtsuStyles
926 for (i = 0; i < MMMaxCellsPerChar; i++)
927 if (atsuStyles[i] != NULL)
929 if (ATSUDisposeStyle(atsuStyles[i]) != noErr)
930 atsuStyles[i] = NULL;
934 - (void)updateAtsuStyles
940 CGAffineTransform transform = CGAffineTransformMakeScale(1, -1);
941 ATSStyleRenderingOptions options;
943 fontID = [font _atsFontID];
944 fontSize = Long2Fix([font pointSize]);
945 options = kATSStyleApplyAntiAliasing;
947 ATSUAttributeTag attribTags[] =
949 kATSUFontTag, kATSUSizeTag, kATSUImposeWidthTag,
950 kATSUFontMatrixTag, kATSUStyleRenderingOptionsTag,
951 kATSUMaxATSUITagValue + 1
954 ByteCount attribSizes[] =
956 sizeof(ATSUFontID), sizeof(Fixed), sizeof(fontWidth),
957 sizeof(CGAffineTransform), sizeof(ATSStyleRenderingOptions),
961 ATSUAttributeValuePtr attribValues[] =
963 &fontID, &fontSize, &fontWidth, &transform, &options, &font
966 ATSUFontFeatureType featureTypes[] = {
967 kLigaturesType, kLigaturesType
970 ATSUFontFeatureSelector featureSelectors[] = {
971 kCommonLigaturesOffSelector, kRareLigaturesOffSelector
974 for (i = 0; i < MMMaxCellsPerChar; i++)
976 fontWidth = Long2Fix(cellSize.width * (i + 1));
978 if (ATSUSetAttributes(atsuStyles[i],
979 (sizeof attribTags) / sizeof(ATSUAttributeTag),
980 attribTags, attribSizes, attribValues) != noErr)
982 ATSUDisposeStyle(atsuStyles[i]);
983 atsuStyles[i] = NULL;
986 // Turn off ligatures by default
987 ATSUSetFontFeatures(atsuStyles[i],
988 sizeof(featureTypes) / sizeof(featureTypes[0]),
989 featureTypes, featureSelectors);
993 - (MMWindowController *)windowController
995 id windowController = [[self window] windowController];
996 if ([windowController isKindOfClass:[MMWindowController class]])
997 return (MMWindowController*)windowController;
1001 - (MMVimController *)vimController
1003 return [[self windowController] vimController];
1006 @end // MMAtsuiTextView (Private)
1011 @implementation MMAtsuiTextView (Drawing)
1013 - (NSPoint)originForRow:(int)row column:(int)col
1015 return NSMakePoint(col * cellSize.width, row * cellSize.height);
1018 - (NSRect)rectFromRow:(int)row1 column:(int)col1
1019 toRow:(int)row2 column:(int)col2
1021 NSPoint origin = [self originForRow:row1 column:col1];
1022 return NSMakeRect(origin.x, origin.y,
1023 (col2 + 1 - col1) * cellSize.width,
1024 (row2 + 1 - row1) * cellSize.height);
1027 - (NSSize)textAreaSize
1029 // Calculate the (desired) size of the text area, i.e. the text view area
1030 // minus the inset area.
1031 return NSMakeSize(maxColumns * cellSize.width, maxRows * cellSize.height);
1034 - (void)resizeContentImage
1036 //NSLog(@"resizeContentImage");
1037 [contentImage release];
1038 contentImage = [[NSImage alloc] initWithSize:[self textAreaSize]];
1039 [contentImage setFlipped:YES];
1040 imageSize = [self textAreaSize];
1043 - (void)beginDrawing
1045 [contentImage lockFocus];
1050 [contentImage unlockFocus];
1053 #define atsu_style_set_bool(s, t, b) \
1054 ATSUSetAttributes(s, 1, &t, &(sizeof(Boolean)), &&b);
1055 #define FILL_Y(y) (y * cellSize.height)
1057 - (void)drawString:(UniChar *)string length:(UniCharCount)length
1058 atRow:(int)row column:(int)col cells:(int)cells
1059 withFlags:(int)flags foregroundColor:(NSColor *)fg
1060 backgroundColor:(NSColor *)bg specialColor:(NSColor *)sp
1062 // 'string' consists of 'length' utf-16 code pairs and should cover 'cells'
1063 // display cells (a normal character takes up one display cell, a wide
1064 // character takes up two)
1065 ATSUStyle style = (flags & DRAW_WIDE) ? atsuStyles[1] : atsuStyles[0];
1066 ATSUTextLayout layout;
1068 // Font selection and rendering options for ATSUI
1069 ATSUAttributeTag attribTags[3] = { kATSUQDBoldfaceTag,
1071 kATSUStyleRenderingOptionsTag };
1073 ByteCount attribSizes[] = { sizeof(Boolean),
1074 sizeof(CGAffineTransform),
1077 CGAffineTransform theTransform = CGAffineTransformMakeScale(1.0, -1.0);
1078 UInt32 useAntialias;
1080 ATSUAttributeValuePtr attribValues[3] = { &useBold, &theTransform,
1083 useBold = (flags & DRAW_BOLD) ? true : false;
1085 if (flags & DRAW_ITALIC)
1086 theTransform.c = Fix2X(kATSItalicQDSkew);
1088 useAntialias = antialias ? kATSStyleApplyAntiAliasing
1089 : kATSStyleNoAntiAliasing;
1091 ATSUSetAttributes(style, sizeof(attribValues) / sizeof(attribValues[0]),
1092 attribTags, attribSizes, attribValues);
1094 // NSLog(@"drawString: %d", length);
1096 ATSUCreateTextLayout(&layout);
1097 ATSUSetTextPointerLocation(layout, string,
1098 kATSUFromTextBeginning, kATSUToTextEnd,
1100 ATSUSetRunStyle(layout, style, kATSUFromTextBeginning, kATSUToTextEnd);
1102 NSRect rect = NSMakeRect(col * cellSize.width, row * cellSize.height,
1103 length * cellSize.width, cellSize.height);
1104 if (flags & DRAW_WIDE)
1105 rect.size.width = rect.size.width * 2;
1106 CGContextRef context = [[NSGraphicsContext currentContext] graphicsPort];
1108 ATSUAttributeTag tags[] = { kATSUCGContextTag };
1109 ByteCount sizes[] = { sizeof(CGContextRef) };
1110 ATSUAttributeValuePtr values[] = { &context };
1111 ATSUSetLayoutControls(layout, 1, tags, sizes, values);
1113 if (! (flags & DRAW_TRANSP))
1121 ATSUSetTransientFontMatching(layout, TRUE);
1122 ATSUDrawText(layout,
1123 kATSUFromTextBeginning,
1125 X2Fix(rect.origin.x),
1126 X2Fix(rect.origin.y + ascender));
1127 ATSUDisposeTextLayout(layout);
1129 if (flags & DRAW_UNDERL)
1132 NSRectFill(NSMakeRect(rect.origin.x,
1133 (row + 1) * cellSize.height + kUnderlineOffset,
1134 rect.size.width, kUnderlineHeight));
1137 if (flags & DRAW_UNDERC)
1141 float line_end_x = rect.origin.x + rect.size.width;
1143 NSRect line_rect = NSMakeRect(
1145 (row + 1) * cellSize.height + kUndercurlOffset,
1146 kUndercurlDotWidth, kUndercurlHeight);
1148 while (line_rect.origin.x < line_end_x)
1151 NSRectFill(line_rect);
1153 line_rect.origin.x += kUndercurlDotDistance;
1159 - (void)scrollRect:(NSRect)rect lineCount:(int)count
1161 NSPoint destPoint = rect.origin;
1162 destPoint.y += count * cellSize.height;
1164 NSCopyBits(0, rect, destPoint);
1167 - (void)deleteLinesFromRow:(int)row lineCount:(int)count
1168 scrollBottom:(int)bottom left:(int)left right:(int)right
1169 color:(NSColor *)color
1171 NSRect rect = [self rectFromRow:row + count
1176 // move rect up for count lines
1177 [self scrollRect:rect lineCount:-count];
1178 [self clearBlockFromRow:bottom - count + 1
1185 - (void)insertLinesAtRow:(int)row lineCount:(int)count
1186 scrollBottom:(int)bottom left:(int)left right:(int)right
1187 color:(NSColor *)color
1189 NSRect rect = [self rectFromRow:row
1191 toRow:bottom - count
1194 // move rect down for count lines
1195 [self scrollRect:rect lineCount:count];
1196 [self clearBlockFromRow:row
1198 toRow:row + count - 1
1203 - (void)clearBlockFromRow:(int)row1 column:(int)col1 toRow:(int)row2
1204 column:(int)col2 color:(NSColor *)color
1207 NSRectFill([self rectFromRow:row1 column:col1 toRow:row2 column:col2]);
1212 [defaultBackgroundColor set];
1213 NSRectFill(NSMakeRect(0, 0, imageSize.width, imageSize.height));
1216 - (void)drawInsertionPointAtRow:(int)row column:(int)col shape:(int)shape
1217 fraction:(int)percent
1219 NSPoint origin = [self originForRow:row column:col];
1220 NSRect rect = NSMakeRect(origin.x, origin.y,
1221 cellSize.width, cellSize.height);
1223 // NSLog(@"shape = %d, fraction: %d", shape, percent);
1225 if (MMInsertionPointHorizontal == shape) {
1226 int frac = (cellSize.height * percent + 99)/100;
1227 rect.origin.y += rect.size.height - frac;
1228 rect.size.height = frac;
1229 } else if (MMInsertionPointVertical == shape) {
1230 int frac = (cellSize.width * percent + 99)/100;
1231 rect.size.width = frac;
1232 } else if (MMInsertionPointVerticalRight == shape) {
1233 int frac = (cellSize.width * percent + 99)/100;
1234 rect.origin.x += rect.size.width - frac;
1235 rect.size.width = frac;
1238 [[helper insertionPointColor] set];
1239 if (MMInsertionPointHollow == shape) {
1246 - (void)drawInvertedRectAtRow:(int)row column:(int)col numRows:(int)nrows
1247 numColumns:(int)ncols
1249 // TODO: THIS CODE HAS NOT BEEN TESTED!
1250 CGContextRef cgctx = [[NSGraphicsContext currentContext] graphicsPort];
1251 CGContextSaveGState(cgctx);
1252 CGContextSetBlendMode(cgctx, kCGBlendModeDifference);
1253 CGContextSetRGBFillColor(cgctx, 1.0, 1.0, 1.0, 1.0);
1255 CGRect rect = { col * cellSize.width, row * cellSize.height,
1256 ncols * cellSize.width, nrows * cellSize.height };
1257 CGContextFillRect(cgctx, rect);
1259 CGContextRestoreGState(cgctx);
1262 @end // MMAtsuiTextView (Drawing)