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//
// PrioritySplitViewDelegate.m
// ColumnSplitView
//
// Created by Matt Gallagher on 2009/09/01.
// Copyright 2009 Matt Gallagher. All rights reserved.
//
#import "PrioritySplitViewDelegate.h"
@implementation PrioritySplitViewDelegate
- (void)setMinimumLength:(CGFloat)minLength forViewAtIndex:(NSInteger)viewIndex
{
if (!lengthsByViewIndex)
{
lengthsByViewIndex = [[NSMutableDictionary alloc] initWithCapacity:0];
}
[lengthsByViewIndex
setObject:[NSNumber numberWithDouble:minLength]
forKey:[NSNumber numberWithInteger:viewIndex]];
}
- (void)setPriority:(NSInteger)priorityIndex forViewAtIndex:(NSInteger)viewIndex
{
if (!viewIndicesByPriority)
{
viewIndicesByPriority = [[NSMutableDictionary alloc] initWithCapacity:0];
}
[viewIndicesByPriority
setObject:[NSNumber numberWithInteger:viewIndex]
forKey:[NSNumber numberWithInteger:priorityIndex]];
}
- (CGFloat)splitView:(NSSplitView *)sender
constrainMinCoordinate:(CGFloat)proposedMin ofSubviewAt:(NSInteger)offset
{
NSView *subview = [[sender subviews] objectAtIndex:offset];
NSRect subviewFrame = subview.frame;
CGFloat frameOrigin;
if ([sender isVertical])
{
frameOrigin = subviewFrame.origin.x;
}
else
{
frameOrigin = subviewFrame.origin.y;
}
CGFloat minimumSize =
[[lengthsByViewIndex objectForKey:[NSNumber numberWithInteger:offset]]
doubleValue];
return frameOrigin + minimumSize;
}
- (CGFloat)splitView:(NSSplitView *)sender
constrainMaxCoordinate:(CGFloat)proposedMax ofSubviewAt:(NSInteger)offset
{
NSView *growingSubview = [[sender subviews] objectAtIndex:offset];
NSView *shrinkingSubview = [[sender subviews] objectAtIndex:offset + 1];
NSRect growingSubviewFrame = growingSubview.frame;
NSRect shrinkingSubviewFrame = shrinkingSubview.frame;
CGFloat shrinkingSize;
CGFloat currentCoordinate;
if ([sender isVertical])
{
currentCoordinate =
growingSubviewFrame.origin.x + growingSubviewFrame.size.width;
shrinkingSize = shrinkingSubviewFrame.size.width;
}
else
{
currentCoordinate =
growingSubviewFrame.origin.y + growingSubviewFrame.size.height;
shrinkingSize = shrinkingSubviewFrame.size.height;
}
CGFloat minimumSize =
[[lengthsByViewIndex objectForKey:[NSNumber numberWithInteger:offset + 1]]
doubleValue];
return currentCoordinate + (shrinkingSize - minimumSize);
}
- (void)splitView:(NSSplitView *)sender
resizeSubviewsWithOldSize:(NSSize)oldSize
{
NSArray *subviews = [sender subviews];
NSInteger subviewsCount = [subviews count];
BOOL isVertical = [sender isVertical];
CGFloat delta = [sender isVertical] ?
(sender.bounds.size.width - oldSize.width) :
(sender.bounds.size.height - oldSize.height);
NSInteger viewCountCheck = 0;
for (NSNumber *priorityIndex in
[[viewIndicesByPriority allKeys] sortedArrayUsingSelector:@selector(compare:)])
{
NSNumber *viewIndex = [viewIndicesByPriority objectForKey:priorityIndex];
NSInteger viewIndexValue = [viewIndex integerValue];
if (viewIndexValue >= subviewsCount)
{
continue;
}
NSView *view = [subviews objectAtIndex:viewIndexValue];
NSSize frameSize = [view frame].size;
NSNumber *minLength = [lengthsByViewIndex objectForKey:viewIndex];
CGFloat minLengthValue = [minLength doubleValue];
if (isVertical)
{
frameSize.height = sender.bounds.size.height;
if (delta > 0 ||
frameSize.width + delta >= minLengthValue)
{
frameSize.width += delta;
delta = 0;
}
else if (delta < 0)
{
delta += frameSize.width - minLengthValue;
frameSize.width = minLengthValue;
}
}
else
{
frameSize.width = sender.bounds.size.width;
if (delta > 0 ||
frameSize.height + delta >= minLengthValue)
{
frameSize.height += delta;
delta = 0;
}
else if (delta < 0)
{
delta += frameSize.height - minLengthValue;
frameSize.height = minLengthValue;
}
}
[view setFrameSize:frameSize];
viewCountCheck++;
}
NSAssert1(viewCountCheck == [subviews count],
@"Number of valid views in priority list is less than the subview count"
@" of split view %p.",
sender);
NSAssert3(fabs(delta) < 0.5,
@"Split view %p resized smaller than minimum %@ of %f",
sender,
isVertical ? @"width" : @"height",
sender.frame.size.width - delta);
CGFloat offset = 0;
CGFloat dividerThickness = [sender dividerThickness];
for (NSView *subview in subviews)
{
NSRect viewFrame = [subview frame];
NSPoint viewOrigin = viewFrame.origin;
if([sender isVertical]) {
viewOrigin.x = offset;
offset += viewFrame.size.width + dividerThickness;
}
else {
viewOrigin.y = offset;
offset += viewFrame.size.height + dividerThickness;
}
[subview setFrameOrigin:viewOrigin];
}
}
@end
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