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Diffstat (limited to 'tikzit-old/src/common/PickSupport.m')
-rw-r--r-- | tikzit-old/src/common/PickSupport.m | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/tikzit-old/src/common/PickSupport.m b/tikzit-old/src/common/PickSupport.m new file mode 100644 index 0000000..560fc2c --- /dev/null +++ b/tikzit-old/src/common/PickSupport.m @@ -0,0 +1,232 @@ +// +// PickSupport.m +// TikZiT +// +// Copyright 2010 Aleks Kissinger. All rights reserved. +// +// +// This file is part of TikZiT. +// +// TikZiT is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// TikZiT is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with TikZiT. If not, see <http://www.gnu.org/licenses/>. +// + +#import "PickSupport.h" + + +@implementation PickSupport + +- (void) postNodeSelectionChanged { + [[NSNotificationCenter defaultCenter] + postNotificationName:@"NodeSelectionChanged" + object:self]; +} + +- (void) postEdgeSelectionChanged { + [[NSNotificationCenter defaultCenter] + postNotificationName:@"EdgeSelectionChanged" + object:self]; +} + +- (id) init { + self = [super init]; + + if (self) { +#if __has_feature(objc_arc) + selectedNodes = [NSMutableSet set]; + selectedEdges = [NSMutableSet set]; +#else + selectedNodes = [[NSMutableSet set] retain]; + selectedEdges = [[NSMutableSet set] retain]; +#endif + } + + return self; +} + ++ (PickSupport*)pickSupport { +#if __has_feature(objc_arc) + return [[PickSupport alloc] init]; +#else + return [[[PickSupport alloc] init] autorelease]; +#endif +} + +@synthesize selectedNodes; +- (void)addSelectedNodesObject:(Node*)node { + return [self selectNode:node]; +} +- (void)addSelectedNodes:(NSSet*)nodes { + return [self selectAllNodes:nodes replacingSelection:NO]; +} +- (void)removeSelectedNodesObject:(Node*)node { + return [self deselectNode:node]; +} +- (void)removeSelectedNodes:(NSSet*)nodes { + if ([selectedNodes count] > 0) { + [selectedNodes minusSet:nodes]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"NodeSelectionReplaced" + object:self]; + [self postNodeSelectionChanged]; + } +} + +@synthesize selectedEdges; +- (void)addSelectedEdgesObject:(Edge*)edge { + return [self selectEdge:edge]; +} +- (void)addSelectedEdges:(NSSet*)edges { + if (selectedEdges == edges) { + return; + } + if ([edges count] == 0) { + return; + } + + [selectedEdges unionSet:edges]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"EdgeSelectionReplaced" + object:self]; + [self postEdgeSelectionChanged]; +} +- (void)removeSelectedEdgesObject:(Edge*)edge { + return [self deselectEdge:edge]; +} +- (void)removeSelectedEdges:(NSSet*)edges { + if ([selectedEdges count] > 0 && [edges count] > 0) { + [selectedEdges minusSet:edges]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"EdgeSelectionReplaced" + object:self]; + [self postEdgeSelectionChanged]; + } +} + +- (BOOL)isNodeSelected:(Node*)nd { + return [selectedNodes containsObject:nd]; +} + +- (BOOL)isEdgeSelected:(Edge*)e { + return [selectedEdges containsObject:e]; +} + +- (void)selectNode:(Node*)nd { + if (nd != nil && ![selectedNodes member:nd]) { + [selectedNodes addObject:nd]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"NodeSelected" + object:self + userInfo:[NSDictionary dictionaryWithObject:nd forKey:@"node"]]; + [self postNodeSelectionChanged]; + } +} + +- (void)deselectNode:(Node*)nd { + if (nd != nil && [selectedNodes member:nd]) { + [selectedNodes removeObject:nd]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"NodeDeselected" + object:self + userInfo:[NSDictionary dictionaryWithObject:nd forKey:@"node"]]; + [self postNodeSelectionChanged]; + } +} + +- (void)selectEdge:(Edge*)e { + if (e != nil && ![selectedEdges member:e]) { + [selectedEdges addObject:e]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"EdgeSelected" + object:self + userInfo:[NSDictionary dictionaryWithObject:e forKey:@"edge"]]; + [self postEdgeSelectionChanged]; + } +} + +- (void)deselectEdge:(Edge*)e { + if (e != nil && [selectedEdges member:e]) { + [selectedEdges removeObject:e]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"EdgeDeselected" + object:self + userInfo:[NSDictionary dictionaryWithObject:e forKey:@"edge"]]; + [self postEdgeSelectionChanged]; + } +} + +- (void)toggleNodeSelected:(Node*)nd { + if ([self isNodeSelected:nd]) + [self deselectNode:nd]; + else + [self selectNode:nd]; +} + +- (void)selectAllNodes:(NSSet*)nodes { + [self selectAllNodes:nodes replacingSelection:YES]; +} + +- (void)selectAllNodes:(NSSet*)nodes replacingSelection:(BOOL)replace { + if (selectedNodes == nodes) { + return; + } + if (!replace && [nodes count] == 0) { + return; + } + + if (replace) { +#if ! __has_feature(objc_arc) + [selectedNodes release]; +#endif + selectedNodes = [nodes mutableCopy]; + } else { + [selectedNodes unionSet:nodes]; + } + [[NSNotificationCenter defaultCenter] + postNotificationName:@"NodeSelectionReplaced" + object:self]; + [self postNodeSelectionChanged]; +} + +- (void)deselectAllNodes { + if ([selectedNodes count] > 0) { + [selectedNodes removeAllObjects]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"NodeSelectionReplaced" + object:self]; + [self postNodeSelectionChanged]; + } +} + +- (void)deselectAllEdges { + if ([selectedEdges count] > 0) { + [selectedEdges removeAllObjects]; + [[NSNotificationCenter defaultCenter] + postNotificationName:@"EdgeSelectionReplaced" + object:self]; + [self postEdgeSelectionChanged]; + } +} + +- (void)dealloc { +#if ! __has_feature(objc_arc) + [selectedNodes release]; + [selectedEdges release]; + + [super dealloc]; +#endif +} + +@end + +// vi:ft=objc:ts=4:noet:sts=4:sw=4 |