137 lines
4.5 KiB
Objective-C
137 lines
4.5 KiB
Objective-C
/*
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Generic controller to select a single item from a list of options
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Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz
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This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
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If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#import "EditorSelectionController.h"
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#import "ConnectionParams.h"
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#import "OrderedDictionary.h"
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@interface EditorSelectionController (Private)
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- (OrderedDictionary*)selectionForIndex:(int)index;
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@end
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@implementation EditorSelectionController
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- (id)initWithConnectionParams:(ConnectionParams*)params entries:(NSArray *)entries selections:(NSArray *)selections
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{
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self = [super initWithStyle:UITableViewStyleGrouped];
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if (self)
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{
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_params = [params retain];
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_entries = [entries retain];
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_selections = [selections retain];
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// allocate and init current selections array
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_cur_selections = [[NSMutableArray alloc] initWithCapacity:[_entries count]];
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for (int i = 0; i < [entries count]; ++i)
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{
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NSString* entry = [entries objectAtIndex:i];
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if([_params hasValueForKeyPath:entry])
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{
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NSUInteger idx = [(OrderedDictionary*)[selections objectAtIndex:i] indexForValue:[NSNumber numberWithInt:[_params intForKeyPath:entry]]];
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[_cur_selections addObject:[NSNumber numberWithInt:(idx != NSNotFound ? idx : 0)]];
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}
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else
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[_cur_selections addObject:[NSNumber numberWithInt:0]];
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}
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}
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return self;
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}
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- (void)didReceiveMemoryWarning
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{
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// Releases the view if it doesn't have a superview.
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[super didReceiveMemoryWarning];
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// Release any cached data, images, etc that aren't in use.
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[_params autorelease];
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[_entries autorelease];
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[_selections autorelease];
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[_cur_selections autorelease];
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}
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#pragma mark - View lifecycle
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- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
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{
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// Return YES for supported orientations
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return YES;
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}
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#pragma mark - Table view data source
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- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
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{
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// Return the number of sections.
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return [_entries count];
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}
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
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{
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// Return the number of rows in the section.
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return [[self selectionForIndex:section] count];
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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UITableViewCell *cell = [self tableViewCellFromIdentifier:TableCellIdentifierMultiChoice];
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// get selection
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OrderedDictionary* selection = [self selectionForIndex:[indexPath section]];
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// set cell properties
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[[cell textLabel] setText:[selection keyAtIndex:[indexPath row]]];
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// set default checkmark
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if([indexPath row] == [[_cur_selections objectAtIndex:[indexPath section]] intValue])
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[cell setAccessoryType:UITableViewCellAccessoryCheckmark];
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else
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[cell setAccessoryType:UITableViewCellAccessoryNone];
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return cell;
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}
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#pragma mark - Table view delegate
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- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
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{
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// has selection change?
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int cur_selection = [[_cur_selections objectAtIndex:[indexPath section]] intValue];
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if([indexPath row] != cur_selection)
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{
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[tableView deselectRowAtIndexPath:indexPath animated:NO];
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NSIndexPath* oldIndexPath = [NSIndexPath indexPathForRow:cur_selection inSection:[indexPath section]];
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// clear old checkmark
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UITableViewCell* old_sel_cell = [tableView cellForRowAtIndexPath:oldIndexPath];
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old_sel_cell.accessoryType = UITableViewCellAccessoryNone;
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// set new checkmark
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UITableViewCell* new_sel_cell = [tableView cellForRowAtIndexPath:indexPath];
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new_sel_cell.accessoryType = UITableViewCellAccessoryCheckmark;
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// get value from selection dictionary
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OrderedDictionary* dict = [self selectionForIndex:[indexPath section]];
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int sel_value = [[dict valueForKey:[dict keyAtIndex:[indexPath row]]] intValue];
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// update selection index and params value
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[_cur_selections replaceObjectAtIndex:[indexPath section] withObject:[NSNumber numberWithInt:[indexPath row]]];
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[_params setInt:sel_value forKeyPath:[_entries objectAtIndex:[indexPath section]]];
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}
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}
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#pragma mark - Convenience functions
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- (OrderedDictionary*)selectionForIndex:(int)index
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{
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return (OrderedDictionary*)[_selections objectAtIndex:index];
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}
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@end
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