GNUstepとCocotron / GNUstep and Cocotron

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題: 発表者: 場所: 日付: (/6TUFQͱ$PDPUSPO KQ NBD04OBUJWF4ZNQPTJVN

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macOS native (/6TUFQͱ$PDPUSPO © 2019 1024jp 0QFO4UFQ4QFDJpDBUJPOr/47JFX OpenStep Specification—10/19/94 1-218 Chapter 1: Application Kit NSView Inherits From: NSResponder : NSObject Conforms To: NSCoding (NSResponder) NSObject (NSObject) Declared In: AppKit/NSView.h AppKit/NSClipView.h Class Description NSView is an abstract class that provides its subclasses with a structure for drawing and for handling events. Any application that needs to display, print, or receive events must use NSView objects. To be displayed, a view must be placed in a window (represented by an NSWindow object). All the views within a window are arranged in a hierarchy, with each view having a single superview and zero or more subviews. Each view has its own area to draw in and its own coordinate system, expressed as a transformation of its superview’s coordinate system. An NSView object can scale, translate, or rotate its coordinates, or flip the polarity of its y-axis. An NSView keeps track of its size and location in two ways: as a frame rectangle (expressed in its superview’s coordinate system) and as a bounds rectangle (expressed in its own coordinate system). Both are represented by NSRect structures. Subclasses of NSView typically override drawRect: to implement an object’s distinctive appearance. They also frequently override one or more of NSView’s or NSResponder’s event-handling methods, to react to the user’s manipulations of the mouse and keyboard. Initializing NSView Objects – (id)initWithFrame:(NSRect)frameRect Initializes a new NSView object to the location and dimensions of frameRect. Managing the NSView Hierarchy – (void)addSubview:(NSView *)aView Makes aView a subview of the receiving view object. – (void)addSubview:(NSView *)aView Makes aView a subview of the receiving view object. positioned:(NSWindowOrderingMode)place It is positioned relative to otherView according to relativeTo:(NSView *)otherView place. OpenStep Specification—10/19/94 1-220 Chapter 1: Application Kit – (void)setFrameRotation:(float)angle Rotates the view’s frame to angle. This method posts the NSViewFocusChangedNotification notification with the receiving object to the default notification center. – (void)setFrameSize:(NSSize)newSize Resizes the view’s frame to newSize. This method posts the NSViewFrameChangedNotification and NSViewFocusChangedNotification notifications with the receiving object to the default notification center. Modifying the Coordinate System – (float)boundsRotation Returns the rotation of the view’s coordinate system. – (NSRect)bounds Gets the view’s bounds rectangle. – (BOOL)isFlipped Returns whether the view is flipped. – (BOOL)isRotatedFromBase Returns whether the view is rotated. – (BOOL)isRotatedOrScaledFromBase Returns whether the view is rotated or scaled. – (void)scaleUnitSquareToSize:(NSSize)newSize Scales the NSView’s coordinate system unit size to newSize. This method posts the notification NSViewFocusChangedNotification with the receiving object to the default notification center. – (void)setBounds:(NSRect)aRect Sets the NSView’s bounds rectangle to aRect. – (void)setBoundsOrigin:(NSPoint)newOrigin Sets the NSView’s drawing origin to newOrigin. This method posts the NSViewFocusChangedNotification notification with the receiving object to the default notification center. – (void)setBoundsRotation:(float)angle Rotates the NSView’s coordinate system to angle. This method posts the NSViewFocusChangedNotification notification with the receiving object to the default notification center. – (void)setBoundsSize:(NSSize)newSize Resizes the NSView’s coordinate system to newSize. This method posts the NSViewFocusChangedNotification notification with the receiving object to the default notification center. – (void)translateOriginToPoint:(NSPoint)point Shifts the NSView’s coordinate system to point. This method posts the NSViewFocusChangedNotification notification with the receiving object to the default notification center.

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