MYUtilities: MYAnimatingSplitView.m@256370e8935a (annotated)

jens@16	1	//
jens@16	2	// MYAnimatingSplitView.m
jens@16	3	// Cloudy
jens@16	4	//
jens@16	5	// Created by Jens Alfke on 7/10/08.
jens@16	6	// Copyright 2008 Jens Alfke. All rights reserved.
jens@16	7	//
jens@16	8
jens@16	9	#import "MYAnimatingSplitView.h"
jens@16	10	#import "DateUtils.h"
jens@16	11
jens@16	12
jens@16	13	#define kDefaultAnimationTime 0.3
jens@16	14
jens@16	15
jens@16	16	@interface MYAnimatingSplitView ()
jens@16	17	@property (readwrite) BOOL isLiveResizing;
jens@16	18	@end
jens@16	19
jens@16	20
jens@16	21	@implementation MYAnimatingSplitView
jens@16	22
jens@16	23
jens@16	24	@synthesize animationTime=_animationTime;
jens@16	25
jens@16	26
jens@16	27	- (void) my_animateDividerToPosition: (float)pos
jens@16	28	{
jens@16	29	const NSTimeInterval maxTime = _animationTime ?: kDefaultAnimationTime;
jens@16	30
jens@16	31	NSTimeInterval startTime = TimeIntervalSinceBoot();
jens@16	32	float startPos = self.dividerPosition;
jens@16	33	const NSTimeInterval animationTime = maxTime * fabs(pos-startPos)/self.frame.size.height;
jens@16	34	float fract;
jens@16	35	do {
jens@16	36	fract = (float) MIN(1.0, (TimeIntervalSinceBoot()-startTime)/animationTime);
jens@16	37	float curPos = startPos + fract*(pos-startPos);
jens@16	38	[self setPosition: curPos ofDividerAtIndex: 0];
jens@16	39	[self.window displayIfNeeded];
jens@16	40	[self.window update];
jens@16	41	}while( fract < 1.0 );
jens@16	42	}
jens@16	43
jens@16	44
jens@16	45	- (void) getDividerPositionMin: (float)outMin max: (float)outMax
jens@16	46	{
jens@16	47	*outMin = [self.delegate splitView: self
jens@16	48	constrainMinCoordinate: [self minPossiblePositionOfDividerAtIndex: 0]
jens@16	49	ofSubviewAt: 0];
jens@16	50	*outMax = [self.delegate splitView: self
jens@16	51	constrainMaxCoordinate: [self maxPossiblePositionOfDividerAtIndex: 0]
jens@16	52	ofSubviewAt: 0];
jens@16	53	}
jens@16	54
jens@16	55	- (float) dividerPosition
jens@16	56	{
jens@16	57	return NSMaxY([[self.subviews objectAtIndex: 0] frame]);
jens@16	58	}
jens@16	59
jens@16	60	- (void) setDividerPosition: (float)pos
jens@16	61	{
jens@16	62	float minPos,maxPos;
jens@16	63	[self getDividerPositionMin: &minPos max: &maxPos];
jens@16	64	NSView *targetView = [[self subviews] objectAtIndex:0];
jens@16	65	NSRect startFrame = [targetView frame];
jens@16	66
jens@16	67	// First uncollapse any collapsed subview:
jens@16	68	if( [self isSubviewCollapsed: targetView] )
jens@16	69	[self setPosition: minPos ofDividerAtIndex: 0];
jens@16	70	else if( startFrame.size.height > maxPos )
jens@16	71	[self setPosition: maxPos ofDividerAtIndex: 0];
jens@16	72	// Now animate:
jens@16	73	[self my_animateDividerToPosition: pos];
jens@16	74	}
jens@16	75
jens@16	76	- (float) dividerFractionalPosition
jens@16	77	{
jens@16	78	float minPos, maxPos, pos=self.dividerPosition;
jens@16	79	[self getDividerPositionMin: &minPos max: &maxPos];
jens@16	80	float denom = maxPos-minPos;
jens@16	81	if( denom<=0 )
jens@17	82	return 0.0f;
jens@16	83	else
jens@16	84	return (pos-minPos)/denom;
jens@16	85	}
jens@16	86
jens@16	87	- (void) setDividerFractionalPosition: (float)fract
jens@16	88	{
jens@16	89	float minPos, maxPos;
jens@16	90	[self getDividerPositionMin: &minPos max: &maxPos];
jens@16	91	self.dividerPosition = roundf( minPos + fract*(maxPos-minPos) );
jens@16	92	}
jens@16	93
jens@16	94
jens@16	95	- (void) collapseSubviewAtIndex: (int)index animate: (BOOL)animate
jens@16	96	{
jens@16	97	if( ! [self isSubviewCollapsed: [self.subviews objectAtIndex: index]] ) {
jens@16	98	float pos = index==0 ?[self minPossiblePositionOfDividerAtIndex: 0]
jens@16	99	:[self maxPossiblePositionOfDividerAtIndex: 0];
jens@16	100	if( animate )
jens@16	101	[self my_animateDividerToPosition: pos];
jens@16	102	else
jens@16	103	[self setPosition: pos ofDividerAtIndex: 0];
jens@16	104	}
jens@16	105	}
jens@16	106
jens@16	107	- (void) collapseSubviewAtIndex: (int)index
jens@16	108	{
jens@16	109	[self collapseSubviewAtIndex: index animate: YES];
jens@16	110	}
jens@16	111
jens@16	112
jens@16	113
jens@16	114	- (BOOL) isLiveResizing
jens@16	115	{
jens@16	116	return _isLiveResizing;
jens@16	117	}
jens@16	118
jens@16	119	- (void) setIsLiveResizing: (BOOL)inLiveResize
jens@16	120	{
jens@16	121	_isLiveResizing = inLiveResize;
jens@16	122	id delegate = self.delegate;
jens@16	123	if( [delegate respondsToSelector: @selector(splitView:inLiveResize:)] )
jens@16	124	[delegate splitView: self inLiveResize: inLiveResize];
jens@16	125	}
jens@16	126
jens@16	127
jens@16	128	- (void)viewWillStartLiveResize
jens@16	129	{
jens@16	130	[super viewWillStartLiveResize];
jens@16	131	self.isLiveResizing = YES;
jens@16	132	}
jens@16	133
jens@16	134	- (void) viewDidEndLiveResize
jens@16	135	{
jens@16	136	[super viewDidEndLiveResize];
jens@16	137	self.isLiveResizing = NO;
jens@16	138	}
jens@16	139
jens@16	140	@end

author	Jens Alfke <jens@mooseyard.com>
	Sun May 03 10:13:31 2009 -0700 (2009-05-03)
changeset 27	256370e8935a
parent 16	ce9c83f7ec14
permissions	-rw-r--r--