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Diffstat (limited to 'tikzit-old/src/common/Edge.h')
| -rw-r--r-- | tikzit-old/src/common/Edge.h | 401 |
1 files changed, 0 insertions, 401 deletions
diff --git a/tikzit-old/src/common/Edge.h b/tikzit-old/src/common/Edge.h deleted file mode 100644 index accf38c..0000000 --- a/tikzit-old/src/common/Edge.h +++ /dev/null @@ -1,401 +0,0 @@ -// -// Edge.h -// 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/>. -// - - -// Edge : store the data associated with an edge. Also, lazily compute -// bezier curve control points based on bend and the coordinates of -// the endpoints. - -#import "Node.h" -#import "EdgeStyle.h" - -/*! - @typedef enum EdgeBendMode - @brief Indicates the type of edge bend. - @var EdgeBendModeBasic A basic, one-angle bend. Positive values will be interpreted - as bend left, negative as bend right. - @var EdgeBendModeInOut A two-angle bend mode, using inAngle and outAngle. - */ -typedef enum { - EdgeBendModeBasic, - EdgeBendModeInOut -} EdgeBendMode; - -/*! - @class Edge - @brief A graph edge, with associated bend and style data. - @details A graph edge, with associated bend and style data. This class - also contains methods for computing the bezier control points - and the midpoint of the curve. - */ -@interface Edge : NSObject<NSCopying> { - Node *source; - Node *target; - Node *edgeNode; - int bend; - int inAngle, outAngle; - EdgeBendMode bendMode; - float weight; - EdgeStyle *style; - GraphElementData *data; - NSString *sourceAnchor; - NSString *targetAnchor; - - // When set to YES, lazily create the edge node, and keep it around when set - // to NO (at least until saved/loaded). - BOOL hasEdgeNode; - BOOL dirty; - - // these are all cached values computed from the above - NSPoint src; - NSPoint targ; - NSPoint head; - NSPoint tail; - NSPoint cp1; - NSPoint cp2; - NSPoint mid; - NSPoint midTan; - NSPoint headTan; - NSPoint tailTan; -} - -/*! - @property data - @brief Associated edge data. - */ -@property (copy) GraphElementData *data; - -// KVC methods -- (void) insertObject:(GraphElementProperty*)gep - inDataAtIndex:(NSUInteger)index; -- (void) removeObjectFromDataAtIndex:(NSUInteger)index; -- (void) replaceObjectInDataAtIndex:(NSUInteger)index - withObject:(GraphElementProperty*)gep; - -/*! - @property style - @brief Edge style. - */ -@property (retain) EdgeStyle *style; - -/*! - @property source - @brief Source node. - */ -@property (retain) Node *source; - -/*! - @property target - @brief Target node. - */ -@property (retain) Node *target; - -/*! - @property edgeNode - @brief A node attached to this edge, as in a label or tick. - */ -@property (retain) Node *edgeNode; - -/*! - @property sourceAnchor - @brief The source node anchor point, as in north or center. - */ -@property (copy) NSString *sourceAnchor; - -/*! - @property targetAnchor - @brief The target node anchor point, as in north or center. - */ -@property (copy) NSString *targetAnchor; - -/*! - @property hasEdgeNode - @brief A read/write property. When set to true, a new edge node is actually constructed. -*/ -@property (assign) BOOL hasEdgeNode; - -/*! - @property bend - @brief The degrees by which the edge bends. - */ -@property (assign) int bend; - -/*! - @property weight - @brief How close the edge will pass to control points. - */ -@property (assign) float weight; - -/*! - @property inAngle - @brief The angle by which the edge enters its target. - */ -@property (assign) int inAngle; - -/*! - @property outAngle - @brief The angle by which the edge leaves its target. - */ -@property (assign) int outAngle; - -/*! - @property bendMode - @brief The mode of the edge bend. Either simple bend in in/out style. - */ -@property (assign) EdgeBendMode bendMode; - -/*! - @property head - @brief The starting point of the edge. - @detail This value is computed based on the source, target and - either bend or in/out angles. It is where the edge - makes contact with the source node. - */ -@property (readonly) NSPoint head; - -/*! - @property tail - @brief The ending point of the edge. - @detail This value is computed based on the source, target and - either bend or in/out angles. It is where the edge - makes contact with the target node. - */ -@property (readonly) NSPoint tail; - -/*! - @property cp1 - @brief The first control point of the edge. - @detail This value is computed based on the source, target and - either bend or in/out angles. - */ -@property (readonly) NSPoint cp1; - -/*! - @property cp2 - @brief The second control point of the edge. - @detail This value is computed based on the source, target and - either bend or in/out angles. - */ -@property (readonly) NSPoint cp2; - -/*! - @property mid - @brief The midpoint of the curve. Computed from the source, target, and control points. - */ -@property (readonly) NSPoint mid; - -/*! - @property mid_tan - @brief The second point of a line tangent to the midpoint. (The first is the midpoint itself.) - */ -@property (readonly) NSPoint midTan; - -/*! - @property left_normal - @brief The second point in a line perp. to the edge coming from mid-point. (left side) - */ -@property (readonly) NSPoint leftNormal; - -/*! - @property left_normal - @brief The second point in a line perp. to the edge coming from mid-point. (right side) - */ -@property (readonly) NSPoint rightNormal; - -@property (readonly) NSPoint headTan; - -/*! - @property leftHeadNormal - */ -@property (readonly) NSPoint leftHeadNormal; - -/*! - @property rightHeadNormal - */ -@property (readonly) NSPoint rightHeadNormal; - -@property (readonly) NSPoint tailTan; - -/*! - @property leftTailNormal - */ -@property (readonly) NSPoint leftTailNormal; - -/*! - @property rightTailNormal - */ -@property (readonly) NSPoint rightTailNormal; - -/*! - @property isSelfLoop - @brief Returns YES if this edge is a self loop. - */ -@property (readonly) BOOL isSelfLoop; - -/*! - @property isStraight - @brief Returns YES if this edge can be drawn as a straight line (as opposed to a bezier curve). - */ -@property (readonly) BOOL isStraight; - - -/*! - @brief Construct a blank edge. - @result An edge. - */ -- (id)init; - -/*! - @brief Construct an edge with the given source and target. - @param s the source node. - @param t the target node. - @result An edge. - */ -- (id)initWithSource:(Node*)s andTarget:(Node*)t; - -/*! - @brief Force the recalculation of the derived properties. - */ -- (void)recalculateProperties; - -/*! - @brief Recompute the control points and midpoint. - */ -- (void)updateControls; - -/*! - @brief Push edge properties back into its <tt>GraphElementData</tt>. - */ -- (void)updateData; - -/*! - @brief Set edge properties from fields in <tt>GraphElementData</tt>. - */ -- (void)setAttributesFromData; - -/*! - @brief Use data.style to find and attach the <tt>EdgeStyle</tt> object from the given array. - */ -- (BOOL)attachStyleFromTable:(NSArray*)styles; - -/*! - @brief Convert the bend angle to an inAngle and outAngle. - */ -- (void)convertBendToAngles; - -/*! - @brief Set the bend angle to the average of the in and out angles. - */ -- (void)convertAnglesToBend; - -/*! - @brief Update this edge to look just like the given edge. - @param e an edge to mimic. - */ -- (void)setPropertiesFromEdge:(Edge *)e; - -/*! - @brief Get a bounding rect for this edge. - @detail Note that this may not be a tight bound. - */ -- (NSRect)boundingRect; - -/*! - @brief Moves the first control point, updating edge properties as necessary - @detail This will move a control point and adjust the weight and - bend (or outAngle) to fit. - - A courseness can be specified for both the weight and the - bend, allowing them to be constrained to certain values. For - example, passing 10 as the bend courseness will force the bend - to be a multiple of 5. Passing 0 for either of these will - cause the relevant value to be unconstrained. - @param point the new position of the control point - @param wc force the weight to be a multiple of this value (unless 0) - @param bc force the bend (or outAngle) to be a multiple of this value (unless 0) - @param link when in EdgeBendModeInOut, change both the in and out angles at once - */ -- (void) moveCp1To:(NSPoint)point withWeightCourseness:(float)wc andBendCourseness:(int)bc forceLinkControlPoints:(BOOL)link; - -/*! - @brief Moves the first control point, updating edge properties as necessary - @detail This will move a control point and adjust the weight and - bend (or outAngle) to fit. - - The same as moveCp1To:point withWeightCourseness:0.0f andBendCourseness:0 forceLinkControlPoints:No - @param point the new position of the control point - @param wc force the weight to be a multiple of this value (unless 0) - @param bc force the bend (or outAngle) to be a multiple of this value (unless 0) - @param link when in EdgeBendModeInOut, change both the in and out angles at once - */ -- (void) moveCp1To:(NSPoint)point; - -/*! - @brief Moves the first control point, updating edge properties as necessary - @detail This will move a control point and adjust the weight and - bend (or inAngle) to fit. - - A courseness can be specified for both the weight and the - bend, allowing them to be constrained to certain values. For - example, passing 10 as the bend courseness will force the bend - to be a multiple of 5. Passing 0 for either of these will - cause the relevant value to be unconstrained. - @param point the new position of the control point - @param wc force the weight to be a multiple of this value (unless 0) - @param bc force the bend (or inAngle) to be a multiple of this value (unless 0) - @param link when in EdgeBendModeInOut, change both the in and out angles at once - */ -- (void) moveCp2To:(NSPoint)point withWeightCourseness:(float)wc andBendCourseness:(int)bc forceLinkControlPoints:(BOOL)link; - -/*! - @brief Moves the first control point, updating edge properties as necessary - @detail This will move a control point and adjust the weight and - bend (or inAngle) to fit. - - The same as moveCp2To:point withWeightCourseness:0.0f andBendCourseness:0 forceLinkControlPoints:No - @param point the new position of the control point - */ -- (void) moveCp2To:(NSPoint)point; - -/*! - @brief Reverse edge direction, updating bend/inAngle/outAngle/etc - */ -- (void)reverse; - -/*! - @brief Factory method to make a blank edge. - @result An edge. - */ -+ (Edge*)edge; - -/*! - @brief Factory method to make an edge with the given source and target. - @param s a source node. - @param t a target node. - @result An edge. - */ -+ (Edge*)edgeWithSource:(Node*)s andTarget:(Node*)t; - -@end - -// vi:ft=objc:noet:ts=4:sts=4:sw=4 |