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FoldingSignTextAttachmentCell.m
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FoldingSignTextAttachmentCell.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) 2004-12 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.
*
* FoldingSignTextAttachmentCell.h
*
* Created by Hans-J. Bibiko on 01/03/2012.
*
*/
#import "FoldingSignTextAttachmentCell.h"
#import "RScriptEditorTextView.h"
#import "RScriptEditorTextStorage.h"
#define HorizontalInset (4.0)
#define VerticalInset (1.0)
#define MaxWidth (100.0)
@implementation FoldingSignTextAttachmentCell
static NSLayoutManager *scratchLayoutManager = nil;
+ (void)initialize
{
if (self == [FoldingSignTextAttachmentCell class]) {
NSTextContainer *textContainer = [[NSTextContainer alloc] initWithContainerSize:NSZeroSize];
scratchLayoutManager = [[NSLayoutManager alloc] init];
[scratchLayoutManager addTextContainer:textContainer];
[textContainer release];
}
}
- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView characterIndex:(NSUInteger)charIndex layoutManager:(NSLayoutManager *)layoutManager
{
// don't render for scratchLayoutManager
if (layoutManager == scratchLayoutManager) return;
CGFloat h = cellFrame.size.height;
CGFloat y = cellFrame.origin.y;
y += h/4;
h -= h/2;
NSRect p = NSMakeRect(cellFrame.origin.x+4.0f, y, cellFrame.size.width-8.0f, h);
NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:p xRadius:4.0 yRadius:4.0];
NSColor *col = [[layoutManager textStorage] foregroundColor];
[[col colorWithAlphaComponent:0.6f] setFill];
[path fill];
[path stroke];
// [col setFill];
// p = NSMakeRect(cellFrame.origin.x+4.0f+5.0f, y+h/2-1.0f, 3.0f, 3.0f);
// NSRectFill(p);
// p.origin.x+=5.0f;
// NSRectFill(p);
// p.origin.x+=5.0f;
// NSRectFill(p);
}
- (BOOL)wantsToTrackMouseForEvent:(NSEvent *)theEvent inRect:(NSRect)cellFrame ofView:(NSView *)controlView atCharacterIndex:(NSUInteger)charIndex
{
return YES;
}
- (BOOL)trackMouse:(NSEvent *)theEvent inRect:(NSRect)cellFrame ofView:(NSView *)controlView atCharacterIndex:(NSUInteger)charIndex untilMouseUp:(BOOL)flag
{
if ([(RScriptEditorTextView *)controlView respondsToSelector:@selector(unfoldLinesContainingCharacterAtIndex:)]) {
BOOL success = [(RScriptEditorTextView *)controlView unfoldLinesContainingCharacterAtIndex:charIndex];
return success;
}
return NO;
}
- (NSRect)cellFrameForTextContainer:(NSTextContainer *)textContainer proposedLineFragment:(NSRect)lineFrag glyphPosition:(NSPoint)position characterIndex:(NSUInteger)charIndex
{
NSLayoutManager *layoutManager = [textContainer layoutManager];
// we don't do layout for scratchLayoutManager
if (layoutManager == scratchLayoutManager) return NSZeroRect;
NSTextStorage *textStorage = [layoutManager textStorage];
NSTextContainer *scratchContainer = [[scratchLayoutManager textContainers] objectAtIndex:0];
NSRect textFrame;
NSRange glyphRange;
NSRect frame;
if ([scratchLayoutManager textStorage] != textStorage) {
[textStorage addLayoutManager:scratchLayoutManager];
}
if (!NSEqualSizes([textContainer containerSize], [scratchContainer containerSize])) [scratchContainer setContainerSize:[textContainer containerSize]];
[scratchLayoutManager ensureLayoutForCharacterRange:NSMakeRange(charIndex, 1)];
textFrame = [scratchLayoutManager lineFragmentRectForGlyphAtIndex:[scratchLayoutManager glyphIndexForCharacterAtIndex:charIndex] effectiveRange:&glyphRange];
frame.origin = NSZeroPoint;
frame.size = NSMakeSize(30.0f, NSHeight(lineFrag));
frame.origin.y -= [[scratchLayoutManager typesetter] baselineOffsetInLayoutManager:scratchLayoutManager glyphIndex:glyphRange.location];
return frame;
}
@end