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Diffstat (limited to 'tikzit-old/src/gtk/GraphRenderer.m')
| -rw-r--r-- | tikzit-old/src/gtk/GraphRenderer.m | 476 |
1 files changed, 0 insertions, 476 deletions
diff --git a/tikzit-old/src/gtk/GraphRenderer.m b/tikzit-old/src/gtk/GraphRenderer.m deleted file mode 100644 index b413d3e..0000000 --- a/tikzit-old/src/gtk/GraphRenderer.m +++ /dev/null @@ -1,476 +0,0 @@ -/* - * Copyright 2011 Alex Merry <alex.merry@kdemail.net> - * Copyright 2010 Chris Heunen - * - * This program 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 2 of - * the License, or (at your option) any later version. - * - * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#import "GraphRenderer.h" -#import "Edge+Render.h" -#import "Node+Render.h" -#import "Shape.h" - -void graph_renderer_expose_event(GtkWidget *widget, GdkEventExpose *event); - -@interface GraphRenderer (Private) -- (enum NodeState) nodeState:(Node*)node; -- (void) renderBoundingBoxWithContext:(id<RenderContext>)context; -- (void) nodeNeedsRefreshing:(NSNotification*)notification; -- (void) edgeNeedsRefreshing:(NSNotification*)notification; -- (void) graphNeedsRefreshing:(NSNotification*)notification; -- (void) graphChanged:(NSNotification*)notification; -- (void) nodeStylePropertyChanged:(NSNotification*)notification; -- (void) edgeStylePropertyChanged:(NSNotification*)notification; -- (void) shapeDictionaryReplaced:(NSNotification*)notification; -@end - -@implementation GraphRenderer - -- (id) initWithSurface:(NSObject <Surface> *)s { - self = [super init]; - - if (self) { - surface = [s retain]; - grid = [[Grid alloc] initWithSpacing:1.0f subdivisions:4 transformer:[s transformer]]; - highlightedNodes = [[NSMutableSet alloc] initWithCapacity:10]; - [surface setRenderDelegate:self]; - - [[NSNotificationCenter defaultCenter] addObserver:self - selector:@selector(nodeStylePropertyChanged:) - name:@"NodeStylePropertyChanged" - object:nil]; - [[NSNotificationCenter defaultCenter] addObserver:self - selector:@selector(edgeStylePropertyChanged:) - name:@"EdgeStylePropertyChanged" - object:nil]; - } - - return self; -} - -- (id) initWithSurface:(NSObject <Surface> *)s document:(TikzDocument*)document { - self = [self initWithSurface:s]; - - if (self) { - [self setDocument:document]; - } - - return self; -} - -- (void) dealloc { - [[NSNotificationCenter defaultCenter] removeObserver:self]; - [doc release]; - [grid release]; - [highlightedNodes release]; - [surface release]; - - [super dealloc]; -} - -- (id<RenderDelegate>) postRenderer { - return postRenderer; -} -- (void) setPostRenderer:(id<RenderDelegate>)r { - if (r == postRenderer) - return; - - [r retain]; - [postRenderer release]; - postRenderer = r; - - [self invalidateGraph]; -} - -- (void) renderWithContext:(id<RenderContext>)context onSurface:(id<Surface>)s { - [self renderWithContext:context]; - if ([s hasFocus]) { - [s renderFocus]; - } -} - -- (void) renderWithContext:(id<RenderContext>)context { - // blank surface - [context paintWithColor:WhiteRColor]; - - // draw grid - [grid renderGridInContext:context]; - - // draw edges - NSEnumerator *enumerator = [doc edgeEnumerator]; - Edge *edge; - while ((edge = [enumerator nextObject]) != nil) { - [edge renderToSurface:surface withContext:context selected:[doc isEdgeSelected:edge]]; - } - - // draw nodes - enumerator = [doc nodeEnumerator]; - Node *node; - while ((node = [enumerator nextObject]) != nil) { - [node renderToSurface:surface withContext:context state:[self nodeState:node]]; - } - - [self renderBoundingBoxWithContext:context]; - [postRenderer renderWithContext:context onSurface:surface]; -} - -- (void) invalidateGraph { - [surface invalidate]; -} - -- (void) invalidateRect:(NSRect)rect { - [surface invalidateRect:rect]; -} - -- (void) invalidateNodes:(NSSet*)nodes { - for (Node *node in nodes) { - [self invalidateNode:node]; - } -} - -- (void) invalidateEdges:(NSSet*)edges { - for (Edge *edge in edges) { - [self invalidateEdge:edge]; - } -} - -- (void) invalidateNode:(Node*)node { - if (node == nil) { - return; - } - NSRect nodeRect = [node renderBoundsWithLabelForSurface:surface]; - nodeRect = NSInsetRect (nodeRect, -2.0f, -2.0f); - [surface invalidateRect:nodeRect]; -} - -- (void) invalidateEdge:(Edge*)edge { - if (edge == nil) { - return; - } - BOOL selected = [doc isEdgeSelected:edge]; - NSRect edgeRect = [edge renderedBoundsWithTransformer:[surface transformer] whenSelected:selected]; - edgeRect = NSInsetRect (edgeRect, -2.0f, -2.0f); - [surface invalidateRect:edgeRect]; -} - -- (void) invalidateNodesHitBy:(NSPoint)point { - NSEnumerator *enumerator = [doc nodeEnumerator]; - Node *node = nil; - while ((node = [enumerator nextObject]) != nil) { - if ([self point:point hitsNode:node]) { - [self invalidateNode:node]; - } - } -} - -- (BOOL) point:(NSPoint)p hitsNode:(Node*)node { - return [node hitByPoint:p onSurface:surface]; -} - -- (BOOL) point:(NSPoint)p fuzzyHitsNode:(Node*)node { - NSRect bounds = [node renderBoundsForSurface:surface]; - return NSPointInRect(p, bounds); -} - -- (BOOL) point:(NSPoint)p hitsEdge:(Edge*)edge withFuzz:(float)fuzz { - return [edge hitByPoint:p onSurface:surface withFuzz:fuzz]; -} - -- (Node*) anyNodeAt:(NSPoint)p { - NSEnumerator *enumerator = [doc nodeEnumerator]; - Node *node; - while ((node = [enumerator nextObject]) != nil) { - if ([self point:p hitsNode:node]) { - return node; - } - } - return nil; -} - -- (Edge*) anyEdgeAt:(NSPoint)p withFuzz:(float)fuzz { - // FIXME: is there an efficient way to find the "nearest" edge - // if the fuzz is the reason we hit more than one? - NSEnumerator *enumerator = [doc edgeEnumerator]; - Edge *edge; - while ((edge = [enumerator nextObject]) != nil) { - if ([self point:p hitsEdge:edge withFuzz:fuzz]) { - return edge; - } - } - return nil; -} - -- (id<Surface>) surface { - return surface; -} - -- (Transformer*) transformer { - return [surface transformer]; -} - -- (Grid*) grid { - return grid; -} - -- (PickSupport*) pickSupport { - return [doc pickSupport]; -} - -- (Graph*) graph { - return [doc graph]; -} - -- (TikzDocument*) document { - return doc; -} - -- (void) setDocument:(TikzDocument*)document { - if (doc == document) { - return; - } - - if (doc != nil) { - [[NSNotificationCenter defaultCenter] removeObserver:self name:nil object:doc]; - [[NSNotificationCenter defaultCenter] removeObserver:self name:nil object:[doc pickSupport]]; - } - - [document retain]; - [doc release]; - doc = document; - - if (doc != nil) { - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(graphNeedsRefreshing:) - name:@"GraphReplaced" object:doc]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(graphChanged:) - name:@"GraphChanged" object:doc]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(graphChanged:) - name:@"GraphBeingChanged" object:doc]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(graphChanged:) - name:@"GraphChangeCancelled" object:doc]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(nodeNeedsRefreshing:) - name:@"NodeSelected" object:[doc pickSupport]]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(nodeNeedsRefreshing:) - name:@"NodeDeselected" object:[doc pickSupport]]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(graphNeedsRefreshing:) - name:@"NodeSelectionReplaced" object:[doc pickSupport]]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(edgeNeedsRefreshing:) - name:@"EdgeSelected" object:[doc pickSupport]]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(edgeNeedsRefreshing:) - name:@"EdgeDeselected" object:[doc pickSupport]]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(graphNeedsRefreshing:) - name:@"EdgeSelectionReplaced" object:[doc pickSupport]]; - [[NSNotificationCenter defaultCenter] - addObserver:self - selector:@selector(shapeDictionaryReplaced:) - name:@"ShapeDictionaryReplaced" - object:[Shape class]]; - } - [surface invalidate]; -} - -- (BOOL) isNodeHighlighted:(Node*)node { - return [highlightedNodes containsObject:node]; -} -- (void) setNode:(Node*)node highlighted:(BOOL)h { - if (h) { - if (![highlightedNodes containsObject:node]) { - [highlightedNodes addObject:node]; - [self invalidateNode:node]; - } - } else { - if ([highlightedNodes containsObject:node]) { - [highlightedNodes removeObject:node]; - [self invalidateNode:node]; - } - } -} -- (void) clearHighlightedNodes { - [self invalidateNodes:highlightedNodes]; - [highlightedNodes removeAllObjects]; -} - -@end - -@implementation GraphRenderer (Private) -- (enum NodeState) nodeState:(Node*)node { - if ([doc isNodeSelected:node]) { - return NodeSelected; - } else if ([self isNodeHighlighted:node]) { - return NodeHighlighted; - } else { - return NodeNormal; - } -} - -- (void) renderBoundingBoxWithContext:(id<RenderContext>)context { - if ([[self graph] hasBoundingBox]) { - [context saveState]; - - NSRect bbox = [[surface transformer] rectToScreen:[[self graph] boundingBox]]; - - [context setAntialiasMode:AntialiasDisabled]; - [context setLineWidth:1.0]; - [context startPath]; - [context rect:bbox]; - [context strokePathWithColor:MakeSolidRColor (1.0, 0.7, 0.5)]; - - [context restoreState]; - } -} - -- (void) nodeNeedsRefreshing:(NSNotification*)notification { - [self invalidateNode:[[notification userInfo] objectForKey:@"node"]]; -} - -- (void) edgeNeedsRefreshing:(NSNotification*)notification { - Edge *edge = [[notification userInfo] objectForKey:@"edge"]; - NSRect edgeRect = [edge renderedBoundsWithTransformer:[surface transformer] whenSelected:YES]; - edgeRect = NSInsetRect (edgeRect, -2, -2); - [surface invalidateRect:edgeRect]; -} - -- (void) graphNeedsRefreshing:(NSNotification*)notification { - [self invalidateGraph]; -} - -- (void) invalidateBentIncidentEdgesForNode:(Node*)nd { - for (Edge *e in [[self graph] inEdgesForNode:nd]) { - if (![e isStraight]) { - [self invalidateEdge:e]; - } - } - for (Edge *e in [[self graph] outEdgesForNode:nd]) { - if (![e isStraight]) { - [self invalidateEdge:e]; - } - } -} - -- (void) graphChanged:(NSNotification*)notification { - GraphChange *change = [[notification userInfo] objectForKey:@"change"]; - switch ([change changeType]) { - case GraphAddition: - case GraphDeletion: - [self invalidateNodes:[change affectedNodes]]; - [self invalidateEdges:[change affectedEdges]]; - break; - case NodePropertyChange: - if (!NSEqualPoints ([[change oldNode] point], [[change nwNode] point])) { - // if the node has moved, it may be affecting edges - [surface invalidate]; - } else if ([[change oldNode] style] != [[change nwNode] style]) { - // change in style means that edges may touch at a different point, - // but this only matters for bent edges - [self invalidateBentIncidentEdgesForNode:[change nodeRef]]; - // invalide both old and new (old node may be larger) - [self invalidateNode:[change oldNode]]; - [self invalidateNode:[change nwNode]]; - } else { - // invalide both old and new (old node may be larger) - [self invalidateNode:[change oldNode]]; - [self invalidateNode:[change nwNode]]; - } - break; - case EdgePropertyChange: - // invalide both old and new (old bend may increase bounds) - [self invalidateEdge:[change oldEdge]]; - [self invalidateEdge:[change nwEdge]]; - [self invalidateEdge:[change edgeRef]]; - break; - case NodesPropertyChange: - { - NSEnumerator *enumerator = [[change oldNodeTable] keyEnumerator]; - Node *node = nil; - while ((node = [enumerator nextObject]) != nil) { - NSPoint oldPos = [[[change oldNodeTable] objectForKey:node] point]; - NSPoint newPos = [[[change nwNodeTable] objectForKey:node] point]; - NodeStyle *oldStyle = [[[change oldNodeTable] objectForKey:node] style]; - NodeStyle *newStyle = [[[change nwNodeTable] objectForKey:node] style]; - if (!NSEqualPoints (oldPos, newPos)) { - [surface invalidate]; - break; - } else if (oldStyle != newStyle) { - [self invalidateBentIncidentEdgesForNode:node]; - [self invalidateNode:[[change oldNodeTable] objectForKey:node]]; - [self invalidateNode:[[change nwNodeTable] objectForKey:node]]; - } else { - [self invalidateNode:[[change oldNodeTable] objectForKey:node]]; - [self invalidateNode:[[change nwNodeTable] objectForKey:node]]; - } - } - } - break; - case NodesShift: - case NodesFlip: - case BoundingBoxChange: - [surface invalidate]; - break; - default: - // unknown change - [surface invalidate]; - break; - }; -} - -- (void) nodeStylePropertyChanged:(NSNotification*)notification { - if (![@"name" isEqual:[[notification userInfo] objectForKey:@"propertyName"]]) { - BOOL affected = NO; - for (Node *node in [[self graph] nodes]) { - if ([node style] == [notification object]) - affected = YES; - } - if (affected) - [surface invalidate]; - } -} - -- (void) edgeStylePropertyChanged:(NSNotification*)notification { - if (![@"name" isEqual:[[notification userInfo] objectForKey:@"propertyName"]]) { - BOOL affected = NO; - for (Edge *edge in [[self graph] edges]) { - if ([edge style] == [notification object]) - affected = YES; - } - if (affected) - [surface invalidate]; - } -} - -- (void) shapeDictionaryReplaced:(NSNotification*)notification { - [surface invalidate]; -} - -@end - -// vim:ft=objc:ts=8:et:sts=4:sw=4 |