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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@36153 72102866-910b-0410-8b05-ffd578937521
176 lines
5.2 KiB
Objective-C
176 lines
5.2 KiB
Objective-C
/* -*-objc-*-
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NSRulerView.h
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The NSRulerView class.
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Copyright (C) 1999-2002 Free Software Foundation, Inc.
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Author: Michael Hanni <mhanni@sprintmail.com>
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Date: Feb 1999
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Author: Fred Kiefer <FredKiefer@gmx.de>
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Date: Sept 2001
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Author: Diego Kreutz (kreutz@inf.ufsm.br)
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Date: January 2002
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This file is part of the GNUstep GUI Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; see the file COPYING.LIB.
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If not, see <http://www.gnu.org/licenses/> or write to the
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Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef _GNUstep_H_NSRulerView
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#define _GNUstep_H_NSRulerView
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#import <AppKit/NSView.h>
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/* Declaring classes, rather than #including the full class header,
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* results in much faster compilations. */
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@class NSScrollView;
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@class NSString;
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@class NSArray;
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@class NSRulerMarker;
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@class NSCoder;
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@class NSEvent;
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typedef enum {
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NSHorizontalRuler,
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NSVerticalRuler
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} NSRulerOrientation;
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@class GSRulerUnit;
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@interface NSRulerView : NSView
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{
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GSRulerUnit *_unit;
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NSScrollView *_scrollView;
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NSView *_clientView; // Not retained
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NSView *_accessoryView;
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CGFloat _originOffset;
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NSMutableArray *_markers;
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NSRulerOrientation _orientation;
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CGFloat _ruleThickness;
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CGFloat _reservedThicknessForAccessoryView;
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CGFloat _reservedThicknessForMarkers;
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/* Cached values. It's a little expensive to calculate them and they
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* change only when the unit or the originOffset is changed or when
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* clientView changes it's size or zooming factor. This cache is
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* invalidated by -invalidateHashMarks method. */
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BOOL _cacheIsValid;
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float _markDistance;
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float _labelDistance;
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int _marksToBigMark;
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int _marksToMidMark;
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int _marksToLabel;
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float _UNUSED;
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float _unitToRuler;
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NSString *_labelFormat;
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}
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- (id) initWithScrollView:(NSScrollView *)aScrollView
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orientation:(NSRulerOrientation)o;
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+ (void) registerUnitWithName:(NSString *)uName
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abbreviation:(NSString *)abbreviation
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unitToPointsConversionFactor:(CGFloat)conversionFactor
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stepUpCycle:(NSArray *)stepUpCycle
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stepDownCycle:(NSArray *)stepDownCycle;
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- (void) setMeasurementUnits: (NSString *)uName;
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- (NSString *) measurementUnits;
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- (void) setClientView: (NSView *)aView;
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- (NSView *) clientView;
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- (void) setAccessoryView: (NSView *)aView;
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- (NSView *) accessoryView;
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- (void) setOriginOffset: (CGFloat)offset;
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- (CGFloat) originOffset;
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- (void) setMarkers: (NSArray *)newMarkers;
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- (NSArray *) markers;
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- (void) addMarker: (NSRulerMarker *)aMarker;
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- (void) removeMarker: (NSRulerMarker *)aMarker;
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- (BOOL) trackMarker: (NSRulerMarker *)aMarker
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withMouseEvent: (NSEvent *)theEvent;
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- (void) moveRulerlineFromLocation: (CGFloat)oldLoc toLocation: (CGFloat)newLoc;
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- (void) drawHashMarksAndLabelsInRect: (NSRect)aRect;
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- (void) drawMarkersInRect: (NSRect)aRect;
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- (void) invalidateHashMarks;
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- (void) setScrollView:(NSScrollView *) scrollView;
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- (NSScrollView *) scrollView;
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- (void) setOrientation: (NSRulerOrientation)o;
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- (NSRulerOrientation) orientation;
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- (void) setReservedThicknessForAccessoryView: (CGFloat)thickness;
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- (CGFloat) reservedThicknessForAccessoryView;
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- (void) setReservedThicknessForMarkers: (CGFloat)thickness;
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- (CGFloat) reservedThicknessForMarkers;
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- (void) setRuleThickness: (CGFloat)thickness;
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- (CGFloat) ruleThickness;
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- (CGFloat) requiredThickness;
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- (CGFloat) baselineLocation;
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- (BOOL) isFlipped;
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@end
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/*
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* Methods Implemented by the client view ... FIXME/TODO: we currently
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* do not send all these messages to the client view ... while we
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* should!
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*/
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@interface NSObject (NSRulerViewClientView)
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- (void)rulerView: (NSRulerView *)aRulerView
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didAddMarker: (NSRulerMarker *)aMarker;
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- (void)rulerView: (NSRulerView *)aRulerView
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didMoveMarker: (NSRulerMarker *)aMarker;
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- (void)rulerView: (NSRulerView *)aRulerView
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didRemoveMarker: (NSRulerMarker *)aMarker;
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- (void)rulerView: (NSRulerView *)aRulerView
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handleMouseDown: (NSEvent *)theEvent;
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- (BOOL)rulerView: (NSRulerView *)aRulerView
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shouldAddMarker: (NSRulerMarker *)aMarker;
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- (BOOL)rulerView: (NSRulerView *)aRulerView
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shouldMoveMarker: (NSRulerMarker *)aMarker;
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- (BOOL)rulerView: (NSRulerView *)aRulerView
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shouldRemoveMarker: (NSRulerMarker *)aMarker;
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- (CGFloat)rulerView: (NSRulerView *)aRulerView
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willAddMarker: (NSRulerMarker *)aMarker
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atLocation: (CGFloat)location;
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- (CGFloat)rulerView: (NSRulerView *)aRulerView
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willMoveMarker: (NSRulerMarker *)aMarker
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toLocation: (CGFloat)location;
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- (void)rulerView: (NSRulerView *)aRulerView
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willSetClientView: (NSView *)newClient;
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@end
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#endif /* _GNUstep_H_NSRulerView */
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