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/*
Project: Sudoku
DigitSource.m
Copyright (C) 2007-2011 The Free Software Foundation, Inc
Author: Marko Riedel
This application is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This application 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
Library General Public License for more details.
You should have received a copy of the GNU General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#import <Foundation/Foundation.h>
#import <AppKit/AppKit.h>
#import "DigitSource.h"
@implementation DigitSource : NSView
static NSImage *dragImages[10] = {
nil, nil, nil, nil, nil,
nil, nil, nil, nil, nil
};
- initAtPoint:(NSPoint)loc withDigit:(int)dval
{
NSRect frame = {
{ loc.x, loc.y }, { DIGIT_FIELD_DIM, DIGIT_FIELD_DIM }
};
[super initWithFrame:frame];
digit = dval;
if(dragImages[0]==nil){
[self makeDragImages];
}
return self;
}
- (unsigned int)draggingSourceOperationMaskForLocal:(BOOL)flag
{
return NSDragOperationCopy;
}
- makeDragImages
{
int dg;
NSBezierPath *bnds;
NSFont *font;
NSDictionary *attrDict;
for(dg=1; dg<=10; dg++){
NSImage *img;
char str[2] = { (dg==10 ? '.' : '0' + dg), 0 };
NSString *strObj;
NSSize strSize;
NSPoint loc;
img = [[NSImage alloc] initWithSize:NSMakeSize(DIGIT_FIELD_DIM, DIGIT_FIELD_DIM)];
RETAIN(img);
[img lockFocus];
bnds = [NSBezierPath bezierPathWithRect:[self bounds]];
[[NSColor whiteColor] set];
[bnds fill];
[[NSColor blackColor] set];
[bnds setLineWidth:4.0];
[bnds stroke];
font = [NSFont boldSystemFontOfSize:DIGIT_FONT_SIZE];
attrDict = [NSDictionary dictionaryWithObjectsAndKeys:
font, NSFontAttributeName,
[NSColor blueColor], NSForegroundColorAttributeName,
nil];
[font set];
strObj = [NSString stringWithCString:str];
strSize = [strObj sizeWithAttributes:attrDict];
loc = NSMakePoint((DIGIT_FIELD_DIM-strSize.width)/2,
(DIGIT_FIELD_DIM-strSize.height)/2);
[strObj drawAtPoint:loc withAttributes:attrDict];
[img unlockFocus];
dragImages[dg-1] = img;
}
return self;
}
- (void)drawRect:(NSRect)aRec
{
[dragImages[digit-1] compositeToPoint:NSMakePoint(0, 0)
operation:NSCompositeCopy];
}
- (void)mouseDown:(NSEvent *)theEvent
{
if([theEvent type]==NSLeftMouseDown){
NSPasteboard *pboard =
[NSPasteboard pasteboardWithName:NSDragPboard];
[pboard declareTypes:
[NSArray arrayWithObjects:DIGIT_TYPE, nil]
owner:self];
[pboard setString:
[NSString stringWithFormat:@"%d", digit]
forType:DIGIT_TYPE];
[self dragImage:dragImages[digit-1]
at:NSMakePoint(0, 0)
offset:NSMakeSize(0, 0)
event:theEvent
pasteboard:pboard
source:self
slideBack:YES];
}
return;
}
@end
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