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/* This code is based on Apple's "GeekGameBoard" sample code, version 1.0.
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http://developer.apple.com/samplecode/GeekGameBoard/
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Copyright © 2007 Apple Inc. Copyright © 2008 Jens Alfke. All Rights Reserved.
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Redistribution and use in source and binary forms, with or without modification, are permitted
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provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list of conditions
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and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this list of
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conditions and the following disclaimer in the documentation and/or other materials provided
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with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
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BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "Dispenser.h"
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#import "Piece.h"
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#import "QuartzUtils.h"
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#import "GGBUtils.h"
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@implementation Dispenser
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- (id) initWithPrototype: (Bit*)prototype quantity: (unsigned)quantity frame: (CGRect)frame
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{
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self = [super init];
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if (self != nil) {
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self.backgroundColor = kTranslucentLightGrayColor;
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self.borderColor = kTranslucentGrayColor;
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self.borderWidth = 3;
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self.cornerRadius = 16;
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self.zPosition = kBoardZ;
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self.masksToBounds = YES;
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self.frame = frame;
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self.prototype = prototype;
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self.quantity = quantity;
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}
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return self;
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}
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- (void) dealloc
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{
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[_prototype release];
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[super dealloc];
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}
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@synthesize bit=_bit;
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- (Bit*) createBit
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{
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if( _prototype ) {
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Bit *bit = [_prototype copy];
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CGRect bounds = self.bounds;
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bit.position = GetCGRectCenter(bounds);
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return [bit autorelease];
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} else
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return nil;
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}
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- (void) x_regenerateCurrentBit
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{
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NSAssert(_bit==nil,@"Already have a currentBit");
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[CATransaction begin];
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[CATransaction setValue: (id)kCFBooleanTrue
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forKey: kCATransactionDisableActions];
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self.bit = [self createBit];
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CGPoint pos = _bit.position;
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_bit.position = CGPointMake(pos.x, pos.y+70);
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[self addSublayer: _bit];
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[CATransaction commit];
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_bit.position = pos;
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}
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- (Bit*) prototype
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{
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return _prototype;
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}
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- (void) setPrototype: (Bit*)prototype
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{
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setObj(&_prototype, prototype);
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if( _bit ) {
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[_bit removeFromSuperlayer];
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self.bit = nil;
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if( prototype )
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[self x_regenerateCurrentBit];
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}
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}
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- (unsigned) quantity
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{
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return _quantity;
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}
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- (void) setQuantity: (unsigned)quantity
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{
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_quantity = quantity;
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if( quantity > 0 && !_bit )
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[self x_regenerateCurrentBit];
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else if( quantity==0 && _bit ) {
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[_bit removeFromSuperlayer];
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self.bit = nil;
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}
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}
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#pragma mark -
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#pragma mark DRAGGING BITS:
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- (Bit*) canDragBit: (Bit*)bit
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{
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bit = [super canDragBit: bit];
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if( bit==_bit ) {
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[[bit retain] autorelease];
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self.bit = nil;
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}
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return bit;
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}
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- (void) cancelDragBit: (Bit*)bit
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{
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if( ! _bit )
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self.bit = bit;
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else
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[bit removeFromSuperlayer];
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}
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- (void) draggedBit: (Bit*)bit to: (id<BitHolder>)dst
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{
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if( --_quantity > 0 )
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[self performSelector: @selector(x_regenerateCurrentBit) withObject: nil afterDelay: 0.0];
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}
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- (BOOL) canDropBit: (Bit*)bit atPoint: (CGPoint)point
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{
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return [bit isEqual: _bit];
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}
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- (BOOL) dropBit: (Bit*)bit atPoint: (CGPoint)point
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{
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[bit removeFromSuperlayer];
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return YES;
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}
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#pragma mark -
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#pragma mark DRAG-AND-DROP:
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#if ! TARGET_OS_ASPEN
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// An image from another app can be dragged onto a Dispenser to change the Piece's appearance.
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- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
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{
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if( ! [_prototype isKindOfClass: [Piece class]] )
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return NSDragOperationNone;
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NSPasteboard *pb = [sender draggingPasteboard];
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if( [NSImage canInitWithPasteboard: pb] )
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return NSDragOperationCopy;
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else
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return NSDragOperationNone;
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}
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- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
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{
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if( ! [_prototype isKindOfClass: [Piece class]] )
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return NO;
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CGImageRef image = GetCGImageFromPasteboard([sender draggingPasteboard]);
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if( image ) {
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[(Piece*)_prototype setImage: image];
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self.prototype = _prototype; // recreates _bit
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return YES;
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} else
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return NO;
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}
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#endif
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@end
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