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Current File : //usr/include/GNUstep/AppKit/NSBezierPath.h
/*
The NSBezierPath class
Copyright (C) 1999, 2005 Free Software Foundation, Inc.
Author: Enrico Sersale <enrico@imago.ro>
Date: Dec 1999
This file is part of the GNUstep GUI Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; see the file COPYING.LIB.
If not, see <http://www.gnu.org/licenses/> or write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef BEZIERPATH_H
#define BEZIERPATH_H
#import <GNUstepBase/GSVersionMacros.h>
#import <Foundation/NSGeometry.h>
#import <Foundation/NSObject.h>
#import <AppKit/NSFont.h>
@class NSAffineTransform;
@class NSImage;
typedef enum {
NSButtLineCapStyle = 0,
NSRoundLineCapStyle = 1,
NSSquareLineCapStyle = 2
} NSLineCapStyle;
typedef enum {
NSMiterLineJoinStyle = 0,
NSRoundLineJoinStyle = 1,
NSBevelLineJoinStyle = 2
} NSLineJoinStyle;
/** A winding rule defines which points are considered inside and which
points are considered outside a path.
<deflist>
<term>NSNonZeroWindingRule</term>
<desc>A point is inside the path iff the winding count at the point
is non-zero.</desc>
<term>NSEvenOddWindingRule</term>
<desc>A point is inside the path iff the winding count at the point
is odd.</desc>
</deflist>
*/
typedef enum {
NSNonZeroWindingRule,
NSEvenOddWindingRule
} NSWindingRule;
typedef enum {
NSMoveToBezierPathElement,
NSLineToBezierPathElement,
NSCurveToBezierPathElement,
NSClosePathBezierPathElement
} NSBezierPathElement;
@interface NSBezierPath : NSObject <NSCopying, NSCoding>
{
@private
NSWindingRule _windingRule;
NSLineCapStyle _lineCapStyle;
NSLineJoinStyle _lineJoinStyle;
CGFloat _lineWidth;
CGFloat _flatness;
CGFloat _miterLimit;
NSInteger _dash_count;
CGFloat _dash_phase;
CGFloat *_dash_pattern;
NSRect _bounds;
NSRect _controlPointBounds;
NSImage *_cacheImage;
#ifndef _IN_NSBEZIERPATH_M
#define GSIArray void*
#endif
GSIArray _pathElements;
#ifndef _IN_NSBEZIERPATH_M
#undef GSIArray
#endif
BOOL _cachesBezierPath;
BOOL _shouldRecalculateBounds;
BOOL _flat;
}
//
// Creating common paths
//
+ (NSBezierPath *)bezierPath;
+ (NSBezierPath *)bezierPathWithRect:(NSRect)aRect;
+ (NSBezierPath *)bezierPathWithOvalInRect:(NSRect)aRect;
#if OS_API_VERSION(MAC_OS_X_VERSION_10_5, GS_API_LATEST)
+ (NSBezierPath *)bezierPathWithRoundedRect:(NSRect)aRect
xRadius:(CGFloat)xRadius
yRadius:(CGFloat)yRadius;
#endif
//
// Immediate mode drawing of common paths
//
+ (void)fillRect:(NSRect)aRect;
/** Using default stroke color and default drawing attributes, strokes
a rectangle using the specified rect. */
+ (void)strokeRect:(NSRect)aRect;
+ (void)clipRect:(NSRect)aRect;
/** Using default stroke color and default drawing attributes, draws a line
between the two points specified. */
+ (void)strokeLineFromPoint:(NSPoint)point1 toPoint:(NSPoint)point2;
+ (void)drawPackedGlyphs: (const char *)packedGlyphs atPoint: (NSPoint)aPoint;
//
// Default path rendering parameters
//
+ (void)setDefaultMiterLimit:(CGFloat)limit;
+ (CGFloat)defaultMiterLimit;
+ (void)setDefaultFlatness:(CGFloat)flatness;
+ (CGFloat)defaultFlatness;
+ (void)setDefaultWindingRule:(NSWindingRule)windingRule;
+ (NSWindingRule)defaultWindingRule;
+ (void)setDefaultLineCapStyle:(NSLineCapStyle)lineCapStyle;
+ (NSLineCapStyle)defaultLineCapStyle;
+ (void)setDefaultLineJoinStyle:(NSLineJoinStyle)lineJoinStyle;
+ (NSLineJoinStyle)defaultLineJoinStyle;
+ (void)setDefaultLineWidth:(CGFloat)lineWidth;
+ (CGFloat)defaultLineWidth;
//
// Path construction
//
- (void)moveToPoint:(NSPoint)aPoint;
- (void)lineToPoint:(NSPoint)aPoint;
- (void)curveToPoint:(NSPoint)aPoint
controlPoint1:(NSPoint)controlPoint1
controlPoint2:(NSPoint)controlPoint2;
- (void)closePath;
- (void)removeAllPoints;
//
// Relative path construction
//
- (void)relativeMoveToPoint:(NSPoint)aPoint;
- (void)relativeLineToPoint:(NSPoint)aPoint;
- (void)relativeCurveToPoint:(NSPoint)aPoint
controlPoint1:(NSPoint)controlPoint1
controlPoint2:(NSPoint)controlPoint2;
//
// Path rendering parameters
//
- (CGFloat)lineWidth;
- (void)setLineWidth:(CGFloat)lineWidth;
- (NSLineCapStyle)lineCapStyle;
- (void)setLineCapStyle:(NSLineCapStyle)lineCapStyle;
- (NSLineJoinStyle)lineJoinStyle;
- (void)setLineJoinStyle:(NSLineJoinStyle)lineJoinStyle;
- (NSWindingRule)windingRule;
- (void)setWindingRule:(NSWindingRule)windingRule;
- (void)setFlatness:(CGFloat)flatness;
- (CGFloat)flatness;
- (void)setMiterLimit:(CGFloat)limit;
- (CGFloat)miterLimit;
- (void)getLineDash:(CGFloat *)pattern count:(NSInteger *)count phase:(CGFloat *)phase;
- (void)setLineDash:(const CGFloat *)pattern count:(NSInteger)count phase:(CGFloat)phase;
//
// Path operations
//
- (void)stroke;
- (void)fill;
- (void)addClip;
- (void)setClip;
//
// Path modifications.
//
- (NSBezierPath *)bezierPathByFlatteningPath;
- (NSBezierPath *)bezierPathByReversingPath;
//
// Applying transformations.
//
- (void)transformUsingAffineTransform:(NSAffineTransform *)transform;
//
// Path info
//
- (BOOL)isEmpty;
- (NSPoint)currentPoint;
- (NSRect)controlPointBounds;
- (NSRect)bounds;
//
// Elements
//
- (NSInteger)elementCount;
- (NSBezierPathElement)elementAtIndex:(NSInteger)index
associatedPoints:(NSPoint *)points;
- (NSBezierPathElement)elementAtIndex:(NSInteger)index;
- (void)setAssociatedPoints:(NSPoint *)points atIndex:(NSInteger)index;
//
// Appending common paths
//
- (void)appendBezierPath:(NSBezierPath *)aPath;
- (void)appendBezierPathWithRect:(NSRect)aRect;
- (void)appendBezierPathWithPoints:(NSPoint *)points count:(NSInteger)count;
- (void)appendBezierPathWithOvalInRect:(NSRect)aRect;
- (void)appendBezierPathWithArcWithCenter:(NSPoint)center
radius:(CGFloat)radius
startAngle:(CGFloat)startAngle
endAngle:(CGFloat)endAngle
clockwise:(BOOL)clockwise;
- (void)appendBezierPathWithArcWithCenter:(NSPoint)center
radius:(CGFloat)radius
startAngle:(CGFloat)startAngle
endAngle:(CGFloat)endAngle;
- (void)appendBezierPathWithArcFromPoint:(NSPoint)point1
toPoint:(NSPoint)point2
radius:(CGFloat)radius;
- (void)appendBezierPathWithGlyph:(NSGlyph)glyph inFont:(NSFont *)font;
- (void)appendBezierPathWithGlyphs:(NSGlyph *)glyphs
count:(NSInteger)count
inFont:(NSFont *)font;
- (void)appendBezierPathWithPackedGlyphs:(const char *)packedGlyphs;
#if OS_API_VERSION(MAC_OS_X_VERSION_10_5, GS_API_LATEST)
- (void)appendBezierPathWithRoundedRect:(NSRect)aRect
xRadius:(CGFloat)xRadius
yRadius:(CGFloat)yRadius;
#endif
//
// Hit detection
//
#if OS_API_VERSION(GS_API_NONE, GS_API_NONE)
/** Returns the winding count, according to the PostScript definition,
at the given point. */
- (int) windingCountAtPoint: (NSPoint)point;
#endif
/** Returns YES iff the path contains, according to the current
<ref type="type" id="NSWindingRule">winding rule</ref>, the given point.
*/
- (BOOL)containsPoint:(NSPoint)point;
//
// Caching
//
- (BOOL)cachesBezierPath;
- (void)setCachesBezierPath:(BOOL)flag;
@end
#endif // BEZIERPATH_H
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