620 lines
16 KiB
Mathematica
620 lines
16 KiB
Mathematica
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//The MIT License (MIT)
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//
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//Copyright (c) 2014 Rafał Augustyniak
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//
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//Permission is hereby granted, free of charge, to any person obtaining a copy of
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//this software and associated documentation files (the "Software"), to deal in
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//the Software without restriction, including without limitation the rights to
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//use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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//the Software, and to permit persons to whom the Software is furnished to do so,
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//subject to the following conditions:
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//
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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//FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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//COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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//IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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//CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#import "RATreeView.h"
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#import "RATreeView_ClassExtension.h"
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#import "RATreeView+Enums.h"
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#import "RATreeView+Private.h"
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#import "RABatchChanges.h"
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#import "RATreeNodeCollectionController.h"
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#import "RATreeNode.h"
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#import "RATableView.h"
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wincomplete-implementation"
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@implementation RATreeView
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#pragma clang diagnostic pop
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#pragma mark Initializing a TreeView Object
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- (id)init
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{
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return [self initWithFrame:CGRectMake(0, 0, 100, 100) style:RATreeViewStylePlain];
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}
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- (id)initWithFrame:(CGRect)frame
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{
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return [self initWithFrame:frame style:RATreeViewStylePlain];
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}
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- (id)initWithFrame:(CGRect)frame style:(RATreeViewStyle)style
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{
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self = [super initWithFrame:frame];
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if (self) {
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CGRect innerFrame = CGRectMake(0, 0, CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds));
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[self commonInitWithFrame:innerFrame style:style];
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}
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return self;
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}
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- (id)initWithCoder:(NSCoder *)aDecoder
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{
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self = [super initWithCoder:aDecoder];
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if (self) {
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CGRect innerFrame = CGRectMake(0, 0, CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds));
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[self commonInitWithFrame:innerFrame style:RATreeViewStylePlain];
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}
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return self;
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}
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- (void)commonInitWithFrame:(CGRect)frame style:(RATreeViewStyle)style
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{
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UITableViewStyle tableViewStyle = [RATreeView tableViewStyleForTreeViewStyle:style];
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RATableView *tableView = [[RATableView alloc] initWithFrame:frame style:tableViewStyle];
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tableView.tableViewDelegate = (id<UITableViewDelegate>)self;
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tableView.dataSource = (id<UITableViewDataSource>)self;
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tableView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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tableView.backgroundColor = [UIColor clearColor];
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[self addSubview:tableView];
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[self setTableView:tableView];
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self.expandsChildRowsWhenRowExpands = NO;
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self.collapsesChildRowsWhenRowCollapses = NO;
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self.rowsExpandingAnimation = RATreeViewRowAnimationTop;
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self.rowsCollapsingAnimation = RATreeViewRowAnimationBottom;
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}
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- (void)awakeFromNib
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{
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[super awakeFromNib];
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self.tableView.backgroundColor = [UIColor clearColor];
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}
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#pragma mark Scroll View
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- (UIScrollView *)scrollView
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{
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return self.tableView;
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}
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#pragma mark Configuring a Tree View
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- (NSInteger)numberOfRows
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{
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return [self.tableView numberOfRowsInSection:0];
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}
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- (RATreeViewStyle)style
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{
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UITableViewStyle tableViewStyle = self.tableView.style;
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return [RATreeView treeViewStyleForTableViewStyle:tableViewStyle];
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}
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#if TARGET_OS_IOS
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- (RATreeViewCellSeparatorStyle)separatorStyle
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{
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RATreeViewCellSeparatorStyle style = [RATreeView treeViewCellSeparatorStyleForTableViewSeparatorStyle:self.tableView.separatorStyle];
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return style;
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}
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- (void)setSeparatorStyle:(RATreeViewCellSeparatorStyle)separatorStyle
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{
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UITableViewCellSeparatorStyle tableViewSeparatorStyle = [RATreeView tableViewCellSeparatorStyleForTreeViewCellSeparatorStyle:separatorStyle];
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self.tableView.separatorStyle = tableViewSeparatorStyle;
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}
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- (UIColor *)separatorColor
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{
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return self.tableView.separatorColor;
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}
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- (void)setSeparatorColor:(UIColor *)separatorColor
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{
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self.tableView.separatorColor = separatorColor;
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}
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#endif
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- (CGFloat)rowHeight
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{
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return self.tableView.rowHeight;
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}
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- (void)setRowHeight:(CGFloat)rowHeight
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{
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self.tableView.rowHeight = rowHeight;
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}
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- (CGFloat)estimatedRowHeight
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{
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if ([self.tableView respondsToSelector:@selector(estimatedRowHeight)]) {
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return self.tableView.estimatedRowHeight;
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} else {
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return 0;
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}
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}
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- (void)setEstimatedRowHeight:(CGFloat)estimatedRowHeight
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{
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if ([self.tableView respondsToSelector:@selector(estimatedRowHeight)]) {
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self.tableView.estimatedRowHeight = estimatedRowHeight;
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}
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}
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- (UIEdgeInsets)separatorInset
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{
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if ([self.tableView respondsToSelector:@selector(separatorInset)]) {
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return self.tableView.separatorInset;
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} else {
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return UIEdgeInsetsZero;
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}
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}
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- (void)setSeparatorInset:(UIEdgeInsets)separatorInset
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{
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if ([self.tableView respondsToSelector:@selector(separatorInset)]) {
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self.tableView.separatorInset = separatorInset;
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}
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}
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#if TARGET_OS_IOS
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- (UIVisualEffect *)separatorEffect
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{
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if ([self.tableView respondsToSelector:@selector(separatorEffect)]) {
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return self.tableView.separatorEffect;
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} else {
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return nil;
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}
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}
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- (void)setSeparatorEffect:(UIVisualEffect *)separatorEffect
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{
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if ([self.tableView respondsToSelector:@selector(separatorEffect)]) {
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self.tableView.separatorEffect = separatorEffect;
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}
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}
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#endif
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- (BOOL)cellLayoutMarginsFollowReadableWidth
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{
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if ([self.tableView respondsToSelector:@selector(cellLayoutMarginsFollowReadableWidth)]) {
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return self.tableView.cellLayoutMarginsFollowReadableWidth;
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} else {
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return NO;
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}
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}
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- (void)setCellLayoutMarginsFollowReadableWidth:(BOOL)cellLayoutMarginsFollowReadableWidth
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{
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if ([self.tableView respondsToSelector:@selector(cellLayoutMarginsFollowReadableWidth)]) {
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self.tableView.cellLayoutMarginsFollowReadableWidth = cellLayoutMarginsFollowReadableWidth;
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}
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}
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- (UIView *)backgroundView
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{
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return self.tableView.backgroundView;
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}
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- (void)setBackgroundView:(UIView *)backgroundView
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{
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self.tableView.backgroundView = backgroundView;
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}
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#pragma mark Expanding and Collapsing Rows
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- (void)expandRowForItem:(id)item
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{
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[self expandRowForItem:item withRowAnimation:self.rowsExpandingAnimation];
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}
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- (void)expandRowForItem:(id)item withRowAnimation:(RATreeViewRowAnimation)animation
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{
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[self expandRowForItem:item expandChildren:NO withRowAnimation:animation];
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}
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- (void)expandRowForItem:(id)item expandChildren:(BOOL)expandChildren withRowAnimation:(RATreeViewRowAnimation)animation
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{
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NSIndexPath *indexPath = [self indexPathForItem:item];
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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if (!treeNode || treeNode.expanded) {
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return;
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}
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[self expandCellForTreeNode:treeNode expandChildren:expandChildren withRowAnimation:animation];
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}
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- (void)collapseRowForItem:(id)item
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{
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[self collapseRowForItem:item withRowAnimation:self.rowsCollapsingAnimation];
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}
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- (void)collapseRowForItem:(id)item withRowAnimation:(RATreeViewRowAnimation)animation
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{
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[self collapseRowForItem:item collapseChildren:NO withRowAnimation:animation];
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}
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- (void)collapseRowForItem:(id)item collapseChildren:(BOOL)collapseChildren withRowAnimation:(RATreeViewRowAnimation)animation
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{
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NSIndexPath *indexPath = [self indexPathForItem:item];
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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if (!treeNode) {
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return;
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}
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[self collapseCellForTreeNode:treeNode collapseChildren:collapseChildren withRowAnimation:animation];
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}
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#pragma mark - Changing tree's structure
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- (void)beginUpdates
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{
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[self.tableView beginUpdates];
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[self.batchChanges beginUpdates];
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}
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- (void)endUpdates
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{
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[self.batchChanges endUpdates];
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[self.tableView endUpdates];
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}
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- (void)insertItemsAtIndexes:(NSIndexSet *)indexes inParent:(id)parent withAnimation:(RATreeViewRowAnimation)animation
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{
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if (parent && ![self isCellForItemExpanded:parent]) {
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return;
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}
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__weak __typeof(self) weakSelf = self;
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[indexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL *stop) {
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[weakSelf insertItemAtIndex:idx inParent:parent withAnimation:animation];
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}];
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}
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- (void)deleteItemsAtIndexes:(NSIndexSet *)indexes inParent:(id)parent withAnimation:(RATreeViewRowAnimation)animation
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{
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if (parent && ![self isCellForItemExpanded:parent]) {
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return;
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}
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__weak __typeof(self) weakSelf = self;
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[indexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL *stop) {
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[weakSelf removeItemAtIndex:idx inParent:parent withAnimation:animation];
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}];
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}
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#pragma mark - Creating Table View Cells
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- (void)registerNib:(UINib *)nib forCellReuseIdentifier:(NSString *)identifier
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{
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[self.tableView registerNib:nib forCellReuseIdentifier:identifier];
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}
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- (void)registerClass:(Class)cellClass forCellReuseIdentifier:(NSString *)identifier
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{
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[self.tableView registerClass:cellClass forCellReuseIdentifier:identifier];
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}
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- (id)dequeueReusableCellWithIdentifier:(NSString *)identifier
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{
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return [self.tableView dequeueReusableCellWithIdentifier:identifier];
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}
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#pragma mark - Accessing Header and Footer Views
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- (void)registerNib:(UINib *)nib forHeaderFooterViewReuseIdentifier:(NSString *)identifier
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{
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[self.tableView registerNib:nib forHeaderFooterViewReuseIdentifier:identifier];
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}
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- (void)registerClass:(Class)aClass forHeaderFooterViewReuseIdentifier:(NSString *)identifier
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{
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[self.tableView registerClass:aClass forHeaderFooterViewReuseIdentifier:identifier];
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}
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- (id)dequeueReusableHeaderFooterViewWithIdentifier:(NSString *)identifier
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{
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return [self.tableView dequeueReusableHeaderFooterViewWithIdentifier:identifier];
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}
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- (UIView *)treeHeaderView
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{
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return self.tableView.tableHeaderView;
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}
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- (void)setTreeHeaderView:(UIView *)treeHeaderView
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{
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self.tableView.tableHeaderView = treeHeaderView;
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}
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- (UIView *)treeFooterView
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{
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return self.tableView.tableFooterView;
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}
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- (void)setTreeFooterView:(UIView *)treeFooterView
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{
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self.tableView.tableFooterView = treeFooterView;
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}
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#pragma mark - Working with Expandability
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- (BOOL)isCellForItemExpanded:(id)item
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{
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NSIndexPath *indexPath = [self indexPathForItem:item];
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return [self treeNodeForIndexPath:indexPath].expanded;
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}
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- (BOOL)isCellExpanded:(UITableViewCell *)cell
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{
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id item = [self itemForCell:cell];
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return [self isCellForItemExpanded:item];
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}
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#pragma mark - Working with Indentation
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- (NSInteger)levelForCellForItem:(id)item
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{
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return [self.treeNodeCollectionController levelForItem:item];
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}
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- (NSInteger)levelForCell:(UITableViewCell *)cell
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{
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id item = [self itemForCell:cell];
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||
|
|
return [self levelForCellForItem:item];
|
||
|
|
}
|
||
|
|
|
||
|
|
#pragma mark - Getting the Parent for an Item
|
||
|
|
|
||
|
|
- (id)parentForItem:(id)item
|
||
|
|
{
|
||
|
|
return [self.treeNodeCollectionController parentForItem:item];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#pragma mark - Accessing Cells
|
||
|
|
|
||
|
|
- (UITableViewCell *)cellForItem:(id)item
|
||
|
|
{
|
||
|
|
NSIndexPath *indexPath = [self indexPathForItem:item];
|
||
|
|
return [self.tableView cellForRowAtIndexPath:indexPath];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (NSArray *)visibleCells
|
||
|
|
{
|
||
|
|
return [self.tableView visibleCells];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (id)itemForCell:(UITableViewCell *)cell
|
||
|
|
{
|
||
|
|
NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
|
||
|
|
return [self treeNodeForIndexPath:indexPath].item;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (id)itemForRowAtPoint:(CGPoint)point
|
||
|
|
{
|
||
|
|
NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:point];
|
||
|
|
return !indexPath ? nil : [self treeNodeForIndexPath:indexPath].item;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (id)itemsForRowsInRect:(CGRect)rect
|
||
|
|
{
|
||
|
|
NSArray *indexPaths = [self.tableView indexPathsForRowsInRect:rect];
|
||
|
|
return [self itemsForIndexPaths:indexPaths];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (NSArray *)itemsForVisibleRows
|
||
|
|
{
|
||
|
|
NSArray *indexPaths = [self.tableView indexPathsForVisibleRows];
|
||
|
|
return [self itemsForIndexPaths:indexPaths];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#pragma mark - Scrolling the TreeView
|
||
|
|
|
||
|
|
- (void)scrollToRowForItem:(id)item atScrollPosition:(RATreeViewScrollPosition)scrollPosition animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
NSIndexPath *indexPath = [self indexPathForItem:item];
|
||
|
|
UITableViewScrollPosition tableViewScrollPosition = [RATreeView tableViewScrollPositionForTreeViewScrollPosition:scrollPosition];
|
||
|
|
[self.tableView scrollToRowAtIndexPath:indexPath atScrollPosition:tableViewScrollPosition animated:animated];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)scrollToNearestSelectedRowAtScrollPosition:(RATreeViewScrollPosition)scrollPosition animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
UITableViewScrollPosition tableViewScrollPosition = [RATreeView tableViewScrollPositionForTreeViewScrollPosition:scrollPosition];
|
||
|
|
[self.tableView scrollToNearestSelectedRowAtScrollPosition:tableViewScrollPosition animated:animated];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#pragma mark - Managing Selections
|
||
|
|
|
||
|
|
- (id)itemForSelectedRow
|
||
|
|
{
|
||
|
|
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
|
||
|
|
return [self treeNodeForIndexPath:indexPath].item;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (NSArray *)itemsForSelectedRows
|
||
|
|
{
|
||
|
|
NSArray *selectedRows = [self.tableView indexPathsForSelectedRows];
|
||
|
|
return [self itemsForIndexPaths:selectedRows];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)selectRowForItem:(id)item animated:(BOOL)animated scrollPosition:(RATreeViewScrollPosition)scrollPosition
|
||
|
|
{
|
||
|
|
if ([self isCellForItemExpanded:[self parentForItem:item]]) {
|
||
|
|
NSIndexPath *indexPath = [self indexPathForItem:item];
|
||
|
|
UITableViewScrollPosition tableViewScrollPosition = [RATreeView tableViewScrollPositionForTreeViewScrollPosition:scrollPosition];
|
||
|
|
[self.tableView selectRowAtIndexPath:indexPath animated:animated scrollPosition:tableViewScrollPosition];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)deselectRowForItem:(id)item animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
if ([self isCellForItemExpanded:[self parentForItem:item]]) {
|
||
|
|
NSIndexPath *indexPath = [self indexPathForItem:item];
|
||
|
|
[self.tableView deselectRowAtIndexPath:indexPath animated:animated];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
- (BOOL)allowsSelection
|
||
|
|
{
|
||
|
|
return self.tableView.allowsSelection;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)setAllowsSelection:(BOOL)allowsSelection
|
||
|
|
{
|
||
|
|
self.tableView.allowsSelection = allowsSelection;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (BOOL)allowsMultipleSelection
|
||
|
|
{
|
||
|
|
return self.tableView.allowsMultipleSelection;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)setAllowsMultipleSelection:(BOOL)allowsMultipleSelection
|
||
|
|
{
|
||
|
|
self.tableView.allowsMultipleSelection = allowsMultipleSelection;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (BOOL)allowsSelectionDuringEditing
|
||
|
|
{
|
||
|
|
return self.tableView.allowsSelectionDuringEditing;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)setAllowsSelectionDuringEditing:(BOOL)allowsSelectionDuringEditing
|
||
|
|
{
|
||
|
|
self.tableView.allowsSelectionDuringEditing = allowsSelectionDuringEditing;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (BOOL)allowsMultipleSelectionDuringEditing
|
||
|
|
{
|
||
|
|
return self.tableView.allowsMultipleSelectionDuringEditing;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)setAllowsMultipleSelectionDuringEditing:(BOOL)allowsMultipleSelectionDuringEditing
|
||
|
|
{
|
||
|
|
self.tableView.allowsMultipleSelectionDuringEditing = allowsMultipleSelectionDuringEditing;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#pragma mark - Managing the Editing of Tree Cells
|
||
|
|
|
||
|
|
- (BOOL)isEditing
|
||
|
|
{
|
||
|
|
return self.tableView.isEditing;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)setEditing:(BOOL)editing
|
||
|
|
{
|
||
|
|
self.tableView.editing = editing;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)setEditing:(BOOL)editing animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
[self.tableView setEditing:editing animated:animated];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#pragma mark - Reloading the Tree View
|
||
|
|
|
||
|
|
- (void)reloadData
|
||
|
|
{
|
||
|
|
[self setupTreeStructure];
|
||
|
|
[self.tableView reloadData];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)reloadRowsForItems:(NSArray *)items withRowAnimation:(RATreeViewRowAnimation)animation
|
||
|
|
{
|
||
|
|
NSMutableArray *indexes = [NSMutableArray array];
|
||
|
|
UITableViewRowAnimation tableViewRowAnimation = [RATreeView tableViewRowAnimationForTreeViewRowAnimation:animation];
|
||
|
|
for (id item in items) {
|
||
|
|
NSIndexPath *indexPath = [self indexPathForItem:item];
|
||
|
|
[indexes addObject:indexPath];
|
||
|
|
}
|
||
|
|
|
||
|
|
[self.tableView reloadRowsAtIndexPaths:indexes withRowAnimation:tableViewRowAnimation];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)reloadRows
|
||
|
|
{
|
||
|
|
NSIndexSet *indexSet = [NSIndexSet indexSetWithIndex:0];
|
||
|
|
[self.tableView reloadSections:indexSet withRowAnimation:UITableViewRowAnimationNone];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#pragma mark - UIScrollView's properties
|
||
|
|
|
||
|
|
- (void)setContentOffset:(CGPoint)contentOffset animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
[self.tableView setContentOffset:contentOffset animated:animated];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)scrollRectToVisible:(CGRect)visible animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
[self.tableView scrollRectToVisible:visible animated:animated];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)setZoomScale:(CGFloat)zoomScale animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
[self.tableView setZoomScale:zoomScale animated:animated];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)flashScrollIndicators
|
||
|
|
{
|
||
|
|
[self.tableView flashScrollIndicators];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)zoomToRect:(CGRect)rect animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
[self.tableView zoomToRect:rect animated:animated];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#pragma mark -
|
||
|
|
|
||
|
|
- (NSArray *)itemsForIndexPaths:(NSArray *)indexPaths
|
||
|
|
{
|
||
|
|
if (!indexPaths) {
|
||
|
|
return nil;
|
||
|
|
}
|
||
|
|
NSMutableArray *items = [NSMutableArray array];
|
||
|
|
for (NSIndexPath *indexPath in indexPaths) {
|
||
|
|
[items addObject:[self treeNodeForIndexPath:indexPath].item];
|
||
|
|
}
|
||
|
|
|
||
|
|
return [items copy];
|
||
|
|
}
|
||
|
|
|
||
|
|
@end
|