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Diffstat (limited to 'tikzit/src/gtk/TikzDocument.m')
| -rw-r--r-- | tikzit/src/gtk/TikzDocument.m | 913 |
1 files changed, 0 insertions, 913 deletions
diff --git a/tikzit/src/gtk/TikzDocument.m b/tikzit/src/gtk/TikzDocument.m deleted file mode 100644 index 6e013b1..0000000 --- a/tikzit/src/gtk/TikzDocument.m +++ /dev/null @@ -1,913 +0,0 @@ -// -// TikzDocument.h -// TikZiT -// -// Copyright 2010 Chris Heunen -// Copyright 2010 Alex Merry -// -// 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 "TikzDocument.h" - -@interface TikzDocument (Private) -- (void) styleRenamed:(NSNotification*)n; - -- (void) setPath:(NSString*)path; -- (void) setGraph:(Graph*)g; - -- (void) registerUndoForChange:(GraphChange*)change; -- (void) registerUndoGroupForChange:(GraphChange*)change withName:(NSString*)name; -- (void) undoGraphChange:(GraphChange*)change; -- (void) completedGraphChange:(GraphChange*)change withName:(NSString*)name; -- (void) attachStylesToGraph:(Graph*)g; - -- (void) regenerateTikz; -@end - -@implementation TikzDocument - -+ (TikzDocument*) documentWithStyleManager:(StyleManager*)manager -{ - return [[[TikzDocument alloc] initWithStyleManager:manager] autorelease]; -} - -+ (TikzDocument*) documentWithGraph:(Graph*)g - styleManager:(StyleManager*)manager -{ - return [[[TikzDocument alloc] initWithGraph:g - styleManager:manager] autorelease]; -} - -+ (TikzDocument*) documentWithTikz:(NSString*)t - styleManager:(StyleManager*)manager - error:(NSError**)error -{ - return [[[TikzDocument alloc] initWithTikz:t - styleManager:manager - error:error] autorelease]; -} - -+ (TikzDocument*) documentFromFile:(NSString*)pth - styleManager:(StyleManager*)manager - error:(NSError**)error -{ - return [[[TikzDocument alloc] initFromFile:pth - styleManager:manager - error:error] autorelease]; -} - - -- (id) initWithStyleManager:(StyleManager*)manager { - self = [self initWithGraph:[Graph graph] styleManager:manager]; - return self; -} - -- (id) initWithGraph:(Graph*)g styleManager:(StyleManager*)manager { - self = [super init]; - - if (self) { - graph = nil; - styleManager = [manager retain]; - pickSupport = [[PickSupport alloc] init]; - undoManager = [[NSUndoManager alloc] init]; - [undoManager setGroupsByEvent:NO]; - tikz = nil; - path = nil; - nodesetBeingModified = nil; - nodesetBeingModifiedOldCopy = nil; - nodeBeingModified = nil; - nodeBeingModifiedOldCopy = nil; - edgeBeingModified = nil; - edgeBeingModifiedOldCopy = nil; - - [undoManager disableUndoRegistration]; - [self setGraph:g]; - [undoManager enableUndoRegistration]; - - hasChanges = NO; - - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(styleRenamed:) - name:@"NodeStyleRenamed" - object:styleManager]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(styleRenamed:) - name:@"EdgeStyleRenamed" - object:styleManager]; - } - - return self; -} - -- (id) initWithTikz:(NSString*)t - styleManager:(StyleManager*)manager - error:(NSError**)error -{ - self = [self initWithStyleManager:manager]; - - if (self) { - [undoManager disableUndoRegistration]; - BOOL success = [self updateTikz:t error:error]; - if (!success) { - [self release]; - return nil; - } - [undoManager enableUndoRegistration]; - hasChanges = NO; - } - - return self; -} - -- (id) initFromFile:(NSString*)pth - styleManager:(StyleManager*)manager - error:(NSError**)error -{ - NSStringEncoding enc; // we can't pass in NULL here... - NSString *t = [NSString stringWithContentsOfFile:pth - usedEncoding:&enc error:error]; - if (t == nil) { - [self release]; - return nil; - } - - self = [self initWithTikz:t styleManager:manager error:error]; - - if (self) { - [self setPath:pth]; - } - return self; -} - -- (void) dealloc { - [[NSNotificationCenter defaultCenter] removeObserver:self]; - - [styleManager release]; - [graph release]; - [pickSupport release]; - [undoManager release]; - [tikz release]; - [path release]; - [nodesetBeingModified release]; - [nodesetBeingModifiedOldCopy release]; - [nodeBeingModified release]; - [nodeBeingModifiedOldCopy release]; - [edgeBeingModified release]; - [edgeBeingModifiedOldCopy release]; - [oldGraphData release]; - [super dealloc]; -} - -@synthesize graph, pickSupport, path; - -- (NSString*) name { - if (path) { - return [[NSFileManager defaultManager] displayNameAtPath: path]; - } else { - return @"Untitled"; - } -} - -- (NSString*) suggestedFileName { - if (path) { - return [path lastPathComponent]; - } else { - return @"untitled.tikz"; - } -} - -- (BOOL) hasUnsavedChanges { - return hasChanges; -} - -- (StyleManager*) styleManager { - return styleManager; -} - -- (void) setStyleManager:(StyleManager*)manager { - StyleManager *oldManager = styleManager; - [[NSNotificationCenter defaultCenter] - removeObserver:self - name:nil - object:oldManager]; - - styleManager = [manager retain]; - - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(styleRenamed:) - name:@"NodeStyleRenamed" - object:styleManager]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(styleRenamed:) - name:@"EdgeStyleRenamed" - object:styleManager]; - - [self attachStylesToGraph:graph]; - [oldManager release]; -} - -- (void) postGraphReplaced { - [[NSNotificationCenter defaultCenter] postNotificationName:@"GraphReplaced" object:self]; -} - -- (void) postGraphChange:(GraphChange*)change { - NSDictionary *info = [NSDictionary dictionaryWithObject:change forKey:@"change"]; - [[NSNotificationCenter defaultCenter] postNotificationName:@"GraphChanged" object:self userInfo:info]; -} - -- (void) postIncompleteGraphChange:(GraphChange*)change { - NSDictionary *info = [NSDictionary dictionaryWithObject:change forKey:@"change"]; - [[NSNotificationCenter defaultCenter] postNotificationName:@"GraphBeingChanged" object:self userInfo:info]; -} - -- (void) postCancelledGraphChange:(GraphChange*)change { - NSDictionary *info = [NSDictionary dictionaryWithObject:change forKey:@"change"]; - [[NSNotificationCenter defaultCenter] postNotificationName:@"GraphChangeCancelled" object:self userInfo:info]; -} - -- (void) postTikzChanged { - [[NSNotificationCenter defaultCenter] postNotificationName:@"TikzChanged" object:self]; -} - -- (void) postUndoStackChanged { - [[NSNotificationCenter defaultCenter] postNotificationName:@"UndoStackChanged" object:self]; -} - -- (NSString*) tikz { - return tikz; -} - -- (BOOL) updateTikz:(NSString*)t error:(NSError**)error { - if (t == nil) { - t = [NSString string]; - } - if (t == tikz || [t isEqual:tikz]) { - return YES; - } - - Graph *g = [Graph graphFromTikz:t error:error]; - if (g) { - // updateTikz actually generates a graph from the tikz, - // and generates the final tikz from that - [self startUndoGroup]; - [self setGraph:g]; - [self nameAndEndUndoGroup:@"Update tikz"]; - return YES; - } - - return NO; -} - -- (Graph*) selectionCut { - Graph *selection = [self selectionCopy]; - [self startUndoGroup]; - [self removeSelected]; - [self nameAndEndUndoGroup:@"Cut"]; - return selection; -} - -- (Graph*) selectionCopy { - return [[graph copyOfSubgraphWithNodes:[pickSupport selectedNodes]] autorelease]; -} - -- (void) paste:(Graph*)g { - if (g == nil || [[g nodes] count] == 0) { - // nothing to paste - return; - } - - // place to the right of the existing graph - NSRect bounds = [graph bounds]; - NSRect gBounds = [g bounds]; - float dx = NSMaxX (bounds) - gBounds.origin.x + 0.5f; - [g shiftNodes:[g nodes] byPoint:NSMakePoint (dx, 0)]; - - GraphChange *change = [graph insertGraph:g]; - [self completedGraphChange:change withName:@"Paste"]; - - // select everything from the clipboard - [pickSupport deselectAllEdges]; - [pickSupport selectAllNodes:[NSSet setWithArray:[g nodes]] replacingSelection:YES]; -} - -- (void) pasteFromTikz:(NSString*)t { - Graph *clipboard = [Graph graphFromTikz:t]; - if (clipboard) { - [self attachStylesToGraph:clipboard]; - [self paste:clipboard]; - } -} - -- (BOOL) isNodeSelected:(Node*)node { - return [pickSupport isNodeSelected:node]; -} - -- (BOOL) isEdgeSelected:(Edge*)edge { - return [pickSupport isEdgeSelected:edge]; -} - -- (NSEnumerator*) nodeEnumerator { - return [[graph nodes] objectEnumerator]; -} - -- (NSEnumerator*) edgeEnumerator { - return [[graph edges] objectEnumerator]; -} - -- (BOOL) canUndo { - return [undoManager canUndo]; -} - -- (void) undo { - [undoManager undo]; - [self postUndoStackChanged]; -} - -- (BOOL) canRedo { - return [undoManager canRedo]; -} - -- (void) redo { - [undoManager redo]; - [self postUndoStackChanged]; -} - -- (NSString*) undoName { - return [undoManager undoActionName]; -} - -- (NSString*) redoName { - return [undoManager redoActionName]; -} - -- (void) startUndoGroup { - [undoManager beginUndoGrouping]; -} - -- (void) nameAndEndUndoGroup:(NSString*)nm { - [undoManager setActionName:nm]; - [undoManager endUndoGrouping]; - [self postUndoStackChanged]; -} - -- (void) endUndoGroup { - [undoManager endUndoGrouping]; - [self postUndoStackChanged]; -} - -- (void) startModifyNode:(Node*)node { - if (nodeBeingModified != nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Already modifying a node"]; - } - nodeBeingModified = [node retain]; - nodeBeingModifiedOldCopy = [node copy]; -} - -- (void) modifyNodeCheckPoint { - [self regenerateTikz]; - GraphChange *change = [GraphChange propertyChangeOfNode:nodeBeingModified - fromOld:nodeBeingModifiedOldCopy - toNew:[[nodeBeingModified copy] autorelease]]; - [self postIncompleteGraphChange:change]; -} - -- (void) _finishModifySequence:(GraphChange*)change withName:(NSString*)chName cancelled:(BOOL)cancelled { - if (cancelled) { - change = [change invert]; - [graph applyGraphChange:change]; - [self regenerateTikz]; - [self postCancelledGraphChange:change]; - } else { - [self registerUndoGroupForChange:change withName:chName]; - [self regenerateTikz]; - [self postGraphChange:change]; - } -} - -- (void) _finishModifyNodeCancelled:(BOOL)cancelled { - if (nodeBeingModified == nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Not modifying a node"]; - } - - GraphChange *change = [GraphChange propertyChangeOfNode:nodeBeingModified - fromOld:nodeBeingModifiedOldCopy - toNew:[[nodeBeingModified copy] autorelease]]; - [self _finishModifySequence:change withName:@"Modify node" cancelled:cancelled]; - - [nodeBeingModified release]; - nodeBeingModified = nil; - [nodeBeingModifiedOldCopy release]; - nodeBeingModifiedOldCopy = nil; -} - -- (void) endModifyNode { [self _finishModifyNodeCancelled:NO]; } -- (void) cancelModifyNode { [self _finishModifyNodeCancelled:YES]; } - -- (void) startModifyNodes:(NSSet*)nodes { - if (nodesetBeingModified != nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Already modifying a node set"]; - } - - nodesetBeingModified = [nodes copy]; - nodesetBeingModifiedOldCopy = [[Graph nodeTableForNodes:nodes] retain]; -} - -- (void) modifyNodesCheckPoint { - [self regenerateTikz]; - GraphChange *change = [GraphChange propertyChangeOfNodesFromOldCopies:nodesetBeingModifiedOldCopy - toNewCopies:[Graph nodeTableForNodes:nodesetBeingModified]]; - [self postIncompleteGraphChange:change]; -} - -- (void) _finishModifyNodes:(BOOL)cancelled { - if (nodesetBeingModified == nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Not modifying a node set"]; - } - - GraphChange *change = [GraphChange propertyChangeOfNodesFromOldCopies:nodesetBeingModifiedOldCopy - toNewCopies:[Graph nodeTableForNodes:nodesetBeingModified]]; - [self _finishModifySequence:change withName:@"Modify nodes" cancelled:cancelled]; - - [nodesetBeingModified release]; - nodesetBeingModified = nil; - [nodesetBeingModifiedOldCopy release]; - nodesetBeingModifiedOldCopy = nil; -} - -- (void) endModifyNodes { [self _finishModifyNodes:NO]; } -- (void) cancelModifyNodes { [self _finishModifyNodes:YES]; } - -- (void) startShiftNodes:(NSSet*)nodes { - if (nodesetBeingModified != nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Already modifying a node set"]; - } - - nodesetBeingModified = [nodes copy]; - currentNodeShift = NSZeroPoint; -} - -- (void) shiftNodesUpdate:(NSPoint)currentShift { - if (nodesetBeingModified == nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Not modifying a node set"]; - } - - currentNodeShift = currentShift; - [self regenerateTikz]; - GraphChange *change = [GraphChange shiftNodes:nodesetBeingModified - byPoint:currentNodeShift]; - [self postIncompleteGraphChange:change]; -} - -- (void) _finishShiftNodesCancelled:(BOOL)cancelled { - if (nodesetBeingModified == nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Not modifying a node set"]; - } - - if (!NSEqualPoints (currentNodeShift, NSZeroPoint)) { - GraphChange *change = [GraphChange shiftNodes:nodesetBeingModified - byPoint:currentNodeShift]; - [self _finishModifySequence:change withName:@"Move nodes" cancelled:cancelled]; - } - - [nodesetBeingModified release]; - nodesetBeingModified = nil; -} - -- (void) endShiftNodes { [self _finishShiftNodesCancelled:NO]; } -- (void) cancelShiftNodes { [self _finishShiftNodesCancelled:YES]; } - -- (void) startModifyEdge:(Edge*)edge { - if (edgeBeingModified != nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Already modifying an edge"]; - } - edgeBeingModified = [edge retain]; - edgeBeingModifiedOldCopy = [edge copy]; -} - -- (void) modifyEdgeCheckPoint { - [self regenerateTikz]; - GraphChange *change = [GraphChange propertyChangeOfEdge:edgeBeingModified - fromOld:edgeBeingModifiedOldCopy - toNew:[[edgeBeingModified copy] autorelease]]; - [self postIncompleteGraphChange:change]; -} - -- (void) _finishModifyEdgeCancelled:(BOOL)cancelled { - if (edgeBeingModified == nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Not modifying an edge"]; - } - - GraphChange *change = [GraphChange propertyChangeOfEdge:edgeBeingModified - fromOld:edgeBeingModifiedOldCopy - toNew:[[edgeBeingModified copy] autorelease]]; - [self _finishModifySequence:change withName:@"Modify edge" cancelled:cancelled]; - - [edgeBeingModified release]; - edgeBeingModified = nil; - [edgeBeingModifiedOldCopy release]; - edgeBeingModifiedOldCopy = nil; -} - -- (void) endModifyEdge { [self _finishModifyEdgeCancelled:NO]; } -- (void) cancelModifyEdge { [self _finishModifyEdgeCancelled:YES]; } - -- (void) startModifyEdges:(NSSet*)edges { - if (edgesetBeingModified != nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Already modifying an edge set"]; - } - - edgesetBeingModified = [edges copy]; - edgesetBeingModifiedOldCopy = [[Graph edgeTableForEdges:edges] retain]; -} - -- (void) modifyEdgesCheckPoint { - [self regenerateTikz]; - GraphChange *change = [GraphChange propertyChangeOfEdgesFromOldCopies:edgesetBeingModifiedOldCopy - toNewCopies:[Graph edgeTableForEdges:edgesetBeingModified]]; - [self postIncompleteGraphChange:change]; -} - -- (void) _finishModifyEdgesCancelled:(BOOL)cancelled { - if (edgesetBeingModified == nil) { - [NSException raise:@"NSInternalInconsistencyException" format:@"Not modifying an edge"]; - } - - GraphChange *change = [GraphChange propertyChangeOfEdgesFromOldCopies:edgesetBeingModifiedOldCopy - toNewCopies:[Graph edgeTableForEdges:edgesetBeingModified]]; - [self _finishModifySequence:change withName:@"Modify edges" cancelled:cancelled]; - - [edgesetBeingModified release]; - edgesetBeingModified = nil; - [edgesetBeingModifiedOldCopy release]; - edgesetBeingModifiedOldCopy = nil; -} - -- (void) endModifyEdges { [self _finishModifyEdgesCancelled:NO]; } -- (void) cancelModifyEdges { [self _finishModifyEdgesCancelled:YES]; } - -- (void) startChangeBoundingBox { - oldGraphBounds = [graph boundingBox]; -} - -- (void) changeBoundingBoxCheckPoint { - [self regenerateTikz]; - GraphChange *change = [GraphChange changeBoundingBoxFrom:oldGraphBounds - to:[graph boundingBox]]; - [self postIncompleteGraphChange:change]; -} - -- (void) _finishChangeBoundingBoxCancelled:(BOOL)cancelled { - GraphChange *change = [GraphChange changeBoundingBoxFrom:oldGraphBounds - to:[graph boundingBox]]; - [self _finishModifySequence:change withName:@"Set bounding box" cancelled:cancelled]; -} -- (void) endChangeBoundingBox { [self _finishChangeBoundingBoxCancelled:NO]; } -- (void) cancelChangeBoundingBox { [self _finishChangeBoundingBoxCancelled:YES]; } - -- (void) startChangeGraphProperties { - oldGraphData = [[graph data] copy]; -} - -- (void) changeGraphPropertiesCheckPoint { - [self regenerateTikz]; - GraphChange *change = [GraphChange propertyChangeOfGraphFrom:oldGraphData - to:[graph data]]; - [self postIncompleteGraphChange:change]; -} - -- (void) _finishChangeGraphPropertiesCancelled:(BOOL)cancelled { - GraphChange *change = [GraphChange propertyChangeOfGraphFrom:oldGraphData - to:[graph data]]; - [self _finishModifySequence:change withName:@"Change graph properties" cancelled:cancelled]; - [oldGraphData release]; - oldGraphData = nil; -} -- (void) endChangeGraphProperties { [self _finishChangeGraphPropertiesCancelled:NO]; } -- (void) cancelChangeGraphProperties { [self _finishChangeGraphPropertiesCancelled:YES]; } - -- (void) removeSelected { - NSUInteger selEdges = [[pickSupport selectedEdges] count]; - NSUInteger selNodes = [[pickSupport selectedNodes] count]; - - if (selEdges == 0 && selNodes == 0) { - return; - } - - NSString *actionName = @"Remove selection"; - - [self startUndoGroup]; - if (selEdges > 0) { - GraphChange *change = [graph removeEdges:[pickSupport selectedEdges]]; - [self registerUndoForChange:change]; - [pickSupport deselectAllEdges]; - [self postGraphChange:change]; - } else { - actionName = (selNodes == 1 ? @"Remove node" : @"Remove nodes"); - } - if (selNodes > 0) { - GraphChange *change = [graph removeNodes:[pickSupport selectedNodes]]; - [self registerUndoForChange:change]; - [pickSupport deselectAllNodes]; - [self postGraphChange:change]; - } else { - actionName = (selEdges == 1 ? @"Remove edge" : @"Remove edges"); - } - [self nameAndEndUndoGroup:actionName]; - [self regenerateTikz]; -} - -- (void) addNode:(Node*)node { - GraphChange *change = [graph addNode:node]; - [self completedGraphChange:change withName:@"Add node"]; -} - -- (void) removeNode:(Node*)node { - [pickSupport deselectNode:node]; - GraphChange *change = [graph removeNode:node]; - [self completedGraphChange:change withName:@"Remove node"]; -} - -- (void) addEdge:(Edge*)edge { - GraphChange *change = [graph addEdge:edge]; - [self completedGraphChange:change withName:@"Add edge"]; -} - -- (void) removeEdge:(Edge*)edge { - [pickSupport deselectEdge:edge]; - GraphChange *change = [graph removeEdge:edge]; - [self completedGraphChange:change withName:@"Remove edge"]; -} - -- (void) shiftSelectedNodesByPoint:(NSPoint)offset { - if ([[pickSupport selectedNodes] count] > 0) { - GraphChange *change = [graph shiftNodes:[pickSupport selectedNodes] byPoint:offset]; - [self completedGraphChange:change withName:@"Move nodes"]; - } -} - -- (void) insertGraph:(Graph*)g { - GraphChange *change = [graph insertGraph:g]; - [self completedGraphChange:change withName:@"Insert graph"]; -} - -- (void) flipSelectedNodesHorizontally { - if ([[pickSupport selectedNodes] count] > 0) { - GraphChange *change = [graph flipHorizontalNodes:[pickSupport selectedNodes]]; - [self completedGraphChange:change withName:@"Flip nodes horizontally"]; - } -} - -- (void) flipSelectedNodesVertically { - if ([[pickSupport selectedNodes] count] > 0) { - GraphChange *change = [graph flipVerticalNodes:[pickSupport selectedNodes]]; - [self completedGraphChange:change withName:@"Flip nodes vertically"]; - } -} - -- (void) reverseSelectedEdges { - if ([[pickSupport selectedEdges] count] > 0) { - GraphChange *change = [graph reverseEdges:[pickSupport selectedEdges]]; - [self completedGraphChange:change withName:@"Reverse edges"]; - } -} - -- (void) bringSelectionForward { - BOOL hasNodeSelection = [[pickSupport selectedNodes] count] > 0; - BOOL hasEdgeSelection = [[pickSupport selectedEdges] count] > 0; - if (!hasNodeSelection && !hasEdgeSelection) - return; - - [self startUndoGroup]; - GraphChange *nodeChange; - GraphChange *edgeChange; - if (hasNodeSelection) { - nodeChange = [graph bringNodesForward:[pickSupport selectedNodes]]; - [self registerUndoForChange:nodeChange]; - } - if (hasEdgeSelection) { - edgeChange = [graph bringEdgesForward:[pickSupport selectedEdges]]; - [self registerUndoForChange:edgeChange]; - } - [self nameAndEndUndoGroup:@"Bring forward"]; - [self regenerateTikz]; - if (hasNodeSelection) - [self postGraphChange:nodeChange]; - if (hasEdgeSelection) - [self postGraphChange:edgeChange]; -} - -- (void) bringSelectionToFront { - BOOL hasNodeSelection = [[pickSupport selectedNodes] count] > 0; - BOOL hasEdgeSelection = [[pickSupport selectedEdges] count] > 0; - if (!hasNodeSelection && !hasEdgeSelection) - return; - - [self startUndoGroup]; - GraphChange *nodeChange; - GraphChange *edgeChange; - if (hasNodeSelection) { - nodeChange = [graph bringNodesToFront:[pickSupport selectedNodes]]; - [self registerUndoForChange:nodeChange]; - } - if (hasEdgeSelection) { - edgeChange = [graph bringEdgesToFront:[pickSupport selectedEdges]]; - [self registerUndoForChange:edgeChange]; - } - [self nameAndEndUndoGroup:@"Bring to front"]; - [self regenerateTikz]; - if (hasNodeSelection) - [self postGraphChange:nodeChange]; - if (hasEdgeSelection) - [self postGraphChange:edgeChange]; -} - -- (void) sendSelectionBackward { - BOOL hasNodeSelection = [[pickSupport selectedNodes] count] > 0; - BOOL hasEdgeSelection = [[pickSupport selectedEdges] count] > 0; - if (!hasNodeSelection && !hasEdgeSelection) - return; - - [self startUndoGroup]; - GraphChange *nodeChange; - GraphChange *edgeChange; - if (hasNodeSelection) { - nodeChange = [graph sendNodesBackward:[pickSupport selectedNodes]]; - [self registerUndoForChange:nodeChange]; - } - if (hasEdgeSelection) { - edgeChange = [graph sendNodesBackward:[pickSupport selectedEdges]]; - [self registerUndoForChange:edgeChange]; - } - [self nameAndEndUndoGroup:@"Send backward"]; - [self regenerateTikz]; - if (hasNodeSelection) - [self postGraphChange:nodeChange]; - if (hasEdgeSelection) - [self postGraphChange:edgeChange]; -} - -- (void) sendSelectionToBack { - BOOL hasNodeSelection = [[pickSupport selectedNodes] count] > 0; - BOOL hasEdgeSelection = [[pickSupport selectedEdges] count] > 0; - if (!hasNodeSelection && !hasEdgeSelection) - return; - - [self startUndoGroup]; - GraphChange *nodeChange; - GraphChange *edgeChange; - if (hasNodeSelection) { - nodeChange = [graph sendNodesToBack:[pickSupport selectedNodes]]; - [self registerUndoForChange:nodeChange]; - } - if (hasEdgeSelection) { - edgeChange = [graph sendNodesToBack:[pickSupport selectedEdges]]; - [self registerUndoForChange:edgeChange]; - } - [self nameAndEndUndoGroup:@"Send to back"]; - [self regenerateTikz]; - if (hasNodeSelection) - [self postGraphChange:nodeChange]; - if (hasEdgeSelection) - [self postGraphChange:edgeChange]; -} - -- (BOOL) saveCopyToPath: (NSString*)p error: (NSError**)error { - if (!p) { - [NSException raise:@"No document path" format:@"No path given"]; - } - // we use glib for writing the file, because GNUStep sucks in this regard - // (older versions don't have -[NSString writeToFile:atomically:encoding:error:]) - GError *gerror = NULL; - gchar *filename = [p glibFilename]; - BOOL success = g_file_set_contents (filename, [tikz UTF8String], -1, &gerror) ? YES : NO; - if (gerror) { - GErrorToNSError (gerror, error); - g_error_free (gerror); - } - g_free (filename); - return success; -} - -- (BOOL) saveToPath: (NSString*)p error: (NSError**)error { - BOOL success = [self saveCopyToPath:p error:error]; - if (success) { - [self setPath:p]; - hasChanges = NO; - } - return success; -} - -- (BOOL) save: (NSError**)error { - if (!path) { - [NSException raise:@"No document path" format:@"Tried to save a document when there was no path"]; - } - return [self saveToPath:path error:error]; -} - -@end - -@implementation TikzDocument (Private) -- (void) styleRenamed:(NSNotification*)n { - [self regenerateTikz]; -} - -- (void) setPath:(NSString*)p { - [p retain]; - [path release]; - path = p; -} - -- (void) setGraph:(Graph*)g { - if (g == nil) { - g = [Graph graph]; - } - if (g == graph) { - return; - } - - [pickSupport deselectAllNodes]; - [pickSupport deselectAllEdges]; - - [self startUndoGroup]; - [undoManager registerUndoWithTarget:self selector:@selector(setGraph:) object:graph]; - [g retain]; - [graph release]; - graph = g; - - [self attachStylesToGraph:graph]; - - [self regenerateTikz]; - [self postGraphReplaced]; - [self nameAndEndUndoGroup:@"Replace graph"]; -} - -- (void) registerUndoForChange:(GraphChange*)change { - [undoManager registerUndoWithTarget:self - selector:@selector(undoGraphChange:) - object:change]; -} - -- (void) registerUndoGroupForChange:(GraphChange*)change withName:(NSString*)nm { - [self startUndoGroup]; - [self registerUndoForChange:change]; - [self nameAndEndUndoGroup:nm]; -} - -- (void) undoGraphChange:(GraphChange*)change { - GraphChange *inverse = [change invert]; - [graph applyGraphChange:inverse]; - [self startUndoGroup]; - [undoManager registerUndoWithTarget:self - selector:@selector(undoGraphChange:) - object:inverse]; - [self endUndoGroup]; - [self regenerateTikz]; - [self postGraphChange:change]; -} - -- (void) completedGraphChange:(GraphChange*)change withName:(NSString*)name { - if (change == nil) { - NSLog(@"No graph change given for change %@", name); - return; - } - [self registerUndoGroupForChange:change withName:name]; - [self regenerateTikz]; - [self postGraphChange:change]; -} - -- (void) attachStylesToGraph:(Graph*)g { - for (Node *n in [g nodes]) { - [n attachStyleFromTable:[styleManager nodeStyles]]; - } - for (Edge *e in [g edges]) { - [e attachStyleFromTable:[styleManager edgeStyles]]; - } -} - -- (void) regenerateTikz { - [tikz release]; - tikz = [[graph tikz] retain]; - hasChanges = YES; - [self postTikzChanged]; -} -@end - -// vim:ft=objc:sts=4:sw=4:et |