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//
// STSortView.m
// STBasic
//
// Created by SunJiangting on 13-11-2.
// Copyright (c) 2013年 SunJiangting. All rights reserved.
//
#import "STSortView.h"
const NSInteger kSTSortElementTagOffset = 100;
@interface STSortView ()
@property (nonatomic, strong) NSMutableArray * elementViewArray;
@property (nonatomic, strong) UIView * baseline1;
@property (nonatomic, strong) UIView * baseline2;
@property (nonatomic, assign) CGFloat baseWidth;
@property (nonatomic, weak) UIView * cacheView;
- (UIView *) viewAtIndex:(NSInteger) index;
- (CGFloat) frameXAtIndex:(NSInteger) index;
@end
@implementation STSortView
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
// Initialization code
self.factor = 5;
self.elementViewArray = [NSMutableArray arrayWithCapacity:5];
self.baseline1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 2, CGRectGetHeight(frame))];
self.baseline1.backgroundColor = [UIColor blueColor];
[self addSubview:self.baseline1];
self.baseline2 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 2, CGRectGetHeight(frame))];
self.baseline2.backgroundColor = [UIColor greenColor];
[self addSubview:self.baseline2];
}
return self;
}
- (void) reloadSortDataSource:(NSArray *) dataSource {
[self.elementViewArray enumerateObjectsUsingBlock:^(UIView * subView, NSUInteger idx, BOOL *stop) {
[subView removeFromSuperview];
}];
[self.elementViewArray removeAllObjects];
int width = CGRectGetWidth(self.bounds) / dataSource.count;
self.baseWidth = width;
self.baseline1.frame = CGRectMake(0.5 * width, 0, 2, CGRectGetHeight(self.bounds));
self.baseline2.frame = CGRectMake(0.5 * width, 0, 2, CGRectGetHeight(self.bounds));
[dataSource enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
CGFloat height = [obj intValue] * self.factor;
CGRect frame = CGRectZero;
frame.origin = CGPointMake((idx + 0.5) * width, CGRectGetHeight(self.bounds) - height);
frame.size = CGSizeMake(width - 10, height);
UIView * view = [[UIView alloc] initWithFrame:frame];
view.backgroundColor = [UIColor blackColor];
view.tag = idx + kSTSortElementTagOffset;
[self addSubview:view];
[self.elementViewArray addObject:view];
}];
}
/// 基线表示参考线，用于表示 循环走到了哪个节点
- (void) moveBaseline1ToIndex:(NSInteger) index
duration:(NSTimeInterval) duration
completion:(void(^)(BOOL finished)) completion {
CGFloat left = [self frameXAtIndex:index];
CGRect frame = self.baseline1.frame;
frame.origin.x = left;
[UIView animateWithDuration:duration animations:^{
self.baseline1.frame = frame;
} completion:^(BOOL finished) {
self.baseline1.frame = frame;
if (completion) {
completion(finished);
}
}];
}
- (void) moveBaseline2ToIndex:(NSInteger) index
duration:(NSTimeInterval) duration
completion:(void(^)(BOOL finished)) completion {
CGFloat left = [self frameXAtIndex:index];
CGRect frame = self.baseline2.frame;
frame.origin.x = left;
[UIView animateWithDuration:duration animations:^{
self.baseline2.frame = frame;
} completion:^(BOOL finished) {
self.baseline2.frame = frame;
if (completion) {
completion(finished);
}
}];
}
/// 将某个位置的元素移动到另一个位置 比如 array[toIndex] = array[index]
- (void) moveElementAtIndex:(NSInteger) index
toIndex:(NSInteger) toIndex
duration:(NSTimeInterval) duration
completion:(void (^)(BOOL finished)) completion {
UIView * subview = [self viewAtIndex:index];
CGFloat left = [self frameXAtIndex:toIndex];
CGRect frame = subview.frame;
frame.origin.x = left;
frame.origin.y = CGRectGetHeight(self.bounds) - CGRectGetHeight(subview.bounds);
subview.tag = toIndex + kSTSortElementTagOffset;
self.cacheView.tag = index + kSTSortElementTagOffset;
[UIView animateWithDuration:duration animations:^{
subview.frame = frame;
} completion:^(BOOL finished) {
subview.frame = frame;
if (completion) {
completion(finished);
}
}];
}
/// 将某一个位置的元素移动到缓冲区，比如 int temp = array[index]
- (void) moveElementToCacheAtIndex:(NSInteger) index
duration:(NSTimeInterval) duration
completion:(void(^)(BOOL finished)) completion {
UIView * subview = [self viewAtIndex:index];
CGRect frame = subview.frame;
frame.origin.y = 0;
[UIView animateWithDuration:duration animations:^{
subview.frame = frame;
} completion:^(BOOL finished) {
subview.frame = frame;
if (completion) {
completion(finished);
}
}];
self.cacheView = subview;
}
- (void) removeElementFromCacheWithDuration:(NSTimeInterval) duration
completion:(void(^)(BOOL finished)) completion {
CGRect frame = self.cacheView.frame;
frame.origin.y = CGRectGetHeight(self.bounds) - CGRectGetHeight(self.cacheView.frame);
frame.origin.x = [self frameXAtIndex:(self.cacheView.tag - kSTSortElementTagOffset)];
[UIView animateWithDuration:duration animations:^{
self.cacheView.frame = frame;
} completion:^(BOOL finished) {
self.cacheView.frame = frame;
completion(finished);
}];
self.cacheView = nil;
}
/// 交换其中两个元素的位置 比如 int temp = array[index1];array[index1] = array[index2];array[index2] = temp;
- (void) exchangeElementAtIndex:(NSInteger) index1
withElementAtIndex:(NSInteger) index2
duration:(NSTimeInterval) duration
completion:(void(^)(BOOL finished)) completion {
UIView * subview1 = [self viewAtIndex:index1];
UIView * subview2 = [self viewAtIndex:index2];
CGRect frame1 = subview1.frame;
CGRect frame2 = subview2.frame;
frame1.origin.x = [self frameXAtIndex:index2];
frame2.origin.x = [self frameXAtIndex:index1];
subview1.tag = index2 + kSTSortElementTagOffset;
subview2.tag = index1 + kSTSortElementTagOffset;
[UIView animateWithDuration:duration animations:^{
subview1.frame = frame1;
subview2.frame = frame2;
} completion:^(BOOL finished) {
subview1.frame = frame1;
subview2.frame = frame2;
if (completion) {
completion(finished);
}
}];
}
- (UIView *) viewAtIndex:(NSInteger) index {
return [self viewWithTag:(index + kSTSortElementTagOffset)];
}
- (CGFloat) frameXAtIndex:(NSInteger) index {
return (index + 0.5) * self.baseWidth;
}
@end