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/* Generated by Interface Builder */
#import "TagView.h"
#import "CardImage.h"
#import "DragCoordinator.h"
#import <appkit/appkit.h>
#import <zone.h>
// This is a base class from which every card is derived.
// These are the physical bitmap size for each card.
#define CARD_WIDTH 100
#define CARD_HEIGHT 150
// All cards in the deck have the save top face image.
// This variable is assigned in this class's
// +initialize method and all instances of this class
// reference that bitmap when drawing their top face.
extern CardImage *topFaceBitmap;
// All of the cards composite their face to this window
// to implement dragging.
// This variable is initialized in the class's
// +initialize method.
extern Window *compositeWindow;
// All of the card image objects are allocated
// from this zone.
extern NXZone *cardZone;
@interface CardView:TagView
{
// This is the bitmap used for the bottom face of the card.
// This variable is declared here but
// always assigned in a subclass.
CardImage *bottomFaceBitmap;
// When true the top face of the card is composited to
// the view, false indicates the bottom face.
BOOL showTopFaceFlag;
// This flag indicates to the card whether it should respond
// to events implemented in this class or pass then along the
// responder chain. Cards that are in the draw pile and your
// hand tile respond to events. In all other cases the events are
// passed along the responder chain (this is because the draw pile
// and hand tile are the only cases where cards can be grabbed).
BOOL eventsEnabledFlag;
// Dragging a card is implemented more in fashion with how
// the appkit intended it to--although it is somewhat complex.
// When the mouseDown:event is detected the window's event mask is
// altered to allow dragging. The mouseUp: event restores it to
// its previous state.
// The delta is the coordinate depth into the card--in bounds
// coordinates--where the mouseDown: event was first detecetd.
// this allows for offset adjustment when the card is being
// dragged (we have to specify the corner of the composite
// window when dragging).
int oldMask;
NXPoint cardDelta;
// While a card is being dragged around the screen and when the
// card is released, this object is informed of those actions.
// That object takes care of notifying tracking views and passing
// the card from this object's super view to the tracking view.
DragCoordinator *dragCoordinator;
}
// The initialize method locates and creates a bitmap for
// the top card face such that this bitmap can be shared by
// all cards.
+ initialize;
// The +new method simply modifys the instance variable
// so that the top card will be displayed first.
- init;
// Destroys the bottom card face bitmap.
- free;
// This method controls whether subclasses of this class will
// respond to events (YES=respond).
// This method is usually called by one of the stack or tile views
// when a card is handed to them.
- setEventsEnabled:( BOOL )flag;
// On mouseDown: events the card is composited to the compositeWindow's
// content view and the window is displayed above the card's view.
// The play window's event mask is altered to allow dragging events to be
// passed.
// When the mouse goes up the window is moved off the screen. If the
// mouseUp: event ocurred over a tracking rectangle then the card
// view is passed to the owner of that rectangle. Also, then window's
// event mask is restored to its previous state.
// As mouseDragged: events are received the compositeWindow is moved
// about the screen.
- mouseDown:( NXEvent * )theEvent;
- mouseUp:( NXEvent * )theEvent;
- mouseDragged:( NXEvent * )theEvent;
// This object is informed of card drag movement and when the
// card is released.
- setDragCoordinator:( DragCoordinator * )anObject;
// This method determines which face of the card is displayed
// (YES==top side).
- setShowTopFace:( BOOL )flag;
- drawSelf:( const NXRect * )rects :( int )rectCount;
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.