jens@16: //
jens@16: //  MYAnimatingSplitView.m
jens@16: //  Cloudy
jens@16: //
jens@16: //  Created by Jens Alfke on 7/10/08.
jens@16: //  Copyright 2008 Jens Alfke. All rights reserved.
jens@16: //
jens@16: 
jens@16: #import "MYAnimatingSplitView.h"
jens@16: #import "DateUtils.h"
jens@16: 
jens@16: 
jens@16: #define kDefaultAnimationTime 0.3
jens@16: 
jens@16: 
jens@16: @interface MYAnimatingSplitView ()
jens@16: @property (readwrite) BOOL isLiveResizing;
jens@16: @end
jens@16: 
jens@16: 
jens@16: @implementation MYAnimatingSplitView
jens@16: 
jens@16: 
jens@16: @synthesize animationTime=_animationTime;
jens@16: 
jens@16: 
jens@16: - (void) my_animateDividerToPosition: (float)pos
jens@16: {
jens@16:     const NSTimeInterval maxTime = _animationTime ?: kDefaultAnimationTime;
jens@16:     
jens@16:     NSTimeInterval startTime = TimeIntervalSinceBoot();
jens@16:     float startPos = self.dividerPosition;
jens@16:     const NSTimeInterval animationTime = maxTime * fabs(pos-startPos)/self.frame.size.height;
jens@16:     float fract;
jens@16:     do {
jens@16:         fract = (float) MIN(1.0, (TimeIntervalSinceBoot()-startTime)/animationTime);
jens@16:         float curPos = startPos + fract*(pos-startPos);
jens@16:         [self setPosition: curPos ofDividerAtIndex: 0];
jens@16:         [self.window displayIfNeeded];
jens@16:         [self.window update];
jens@16:     }while( fract < 1.0 );
jens@16: }
jens@16: 
jens@16: 
jens@16: - (void) getDividerPositionMin: (float*)outMin max: (float*)outMax
jens@16: {
jens@16:     *outMin = [self.delegate splitView: self 
jens@16:                     constrainMinCoordinate: [self minPossiblePositionOfDividerAtIndex: 0]
jens@16:                     ofSubviewAt: 0];
jens@16:     *outMax = [self.delegate splitView: self 
jens@16:                     constrainMaxCoordinate: [self maxPossiblePositionOfDividerAtIndex: 0]
jens@16:                     ofSubviewAt: 0];
jens@16: }
jens@16: 
jens@16: - (float) dividerPosition
jens@16: {
jens@16:     return NSMaxY([[self.subviews objectAtIndex: 0] frame]);
jens@16: }
jens@16: 
jens@16: - (void) setDividerPosition: (float)pos
jens@16: {
jens@16:     float minPos,maxPos;
jens@16:     [self getDividerPositionMin: &minPos max: &maxPos];
jens@16:     NSView *targetView = [[self subviews] objectAtIndex:0];
jens@16:     NSRect startFrame = [targetView frame];
jens@16: 
jens@16:     // First uncollapse any collapsed subview:
jens@16:     if( [self isSubviewCollapsed: targetView] )
jens@16:         [self setPosition: minPos ofDividerAtIndex: 0];
jens@16:     else if( startFrame.size.height > maxPos )
jens@16:         [self setPosition: maxPos ofDividerAtIndex: 0];
jens@16:     // Now animate:
jens@16:     [self my_animateDividerToPosition: pos];
jens@16: }
jens@16: 
jens@16: - (float) dividerFractionalPosition
jens@16: {
jens@16:     float minPos, maxPos, pos=self.dividerPosition;
jens@16:     [self getDividerPositionMin: &minPos max: &maxPos];
jens@16:     float denom = maxPos-minPos;
jens@16:     if( denom<=0 )
jens@17:         return 0.0f;
jens@16:     else
jens@16:         return (pos-minPos)/denom;
jens@16: }
jens@16: 
jens@16: - (void) setDividerFractionalPosition: (float)fract
jens@16: {
jens@16:     float minPos, maxPos;
jens@16:     [self getDividerPositionMin: &minPos max: &maxPos];
jens@16:     self.dividerPosition = roundf( minPos + fract*(maxPos-minPos) );
jens@16: }
jens@16: 
jens@16: 
jens@16: - (void) collapseSubviewAtIndex: (int)index animate: (BOOL)animate
jens@16: {
jens@16:     if( ! [self isSubviewCollapsed: [self.subviews objectAtIndex: index]] ) {
jens@16:         float pos = index==0 ?[self minPossiblePositionOfDividerAtIndex: 0]
jens@16:                              :[self maxPossiblePositionOfDividerAtIndex: 0];
jens@16:         if( animate )
jens@16:             [self my_animateDividerToPosition: pos];
jens@16:         else
jens@16:             [self setPosition: pos ofDividerAtIndex: 0];
jens@16:     }
jens@16: }
jens@16: 
jens@16: - (void) collapseSubviewAtIndex: (int)index
jens@16: {
jens@16:     [self collapseSubviewAtIndex: index animate: YES];
jens@16: }
jens@16: 
jens@16: 
jens@16: 
jens@16: - (BOOL) isLiveResizing
jens@16: {
jens@16:     return _isLiveResizing;
jens@16: }
jens@16: 
jens@16: - (void) setIsLiveResizing: (BOOL)inLiveResize
jens@16: {
jens@16:     _isLiveResizing = inLiveResize;
jens@16:     id delegate = self.delegate;
jens@16:     if( [delegate respondsToSelector: @selector(splitView:inLiveResize:)] )
jens@16:         [delegate splitView: self inLiveResize: inLiveResize];
jens@16: }
jens@16: 
jens@16: 
jens@16: - (void)viewWillStartLiveResize
jens@16: {
jens@16:     [super viewWillStartLiveResize];
jens@16:     self.isLiveResizing = YES;
jens@16: }
jens@16: 
jens@16: - (void) viewDidEndLiveResize
jens@16: {
jens@16:     [super viewDidEndLiveResize];
jens@16:     self.isLiveResizing = NO;
jens@16: }
jens@16: 
jens@16: @end