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SWBombTool.m
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SWBombTool.m
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/**
* Copyright 2007-2010 Soggy Waffles. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY SOGGY WAFFLES ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SOGGY WAFFLES OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of Soggy Waffles.
*/
#import "SWBombTool.h"
#import "SWDocument.h"
@implementation SWBombTool
- (NSBezierPath *)pathFromPoint:(NSPoint)begin toPoint:(NSPoint)end
{
return nil;
}
- (NSBezierPath *)performDrawAtPoint:(NSPoint)point
withMainImage:(NSBitmapImageRep *)mainImage
bufferImage:(NSBitmapImageRep *)bufferImage
mouseEvent:(SWMouseEvent)event
{
if (event == MOUSE_DOWN) {
// If there's an explosion going on, kill it
if (isExploding) {
[self endExplosion:bombTimer];
}
i = 0;
rect = NSZeroRect;
p = point;
_bufferImage = bufferImage;
_mainImage = mainImage;
// We do this to make a copy of the color
bombColor = (flags & NSAlternateKeyMask) ? frontColor : backColor;
if (flags & NSShiftKeyMask) {
bombSpeed = 2;
} else {
bombSpeed = 50;
}
max = sqrt([mainImage size].width*[mainImage size].width + [_mainImage size].height*[_mainImage size].height);
bombTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0/60.0) // 1 μs
target:self
selector:@selector(drawNewCircle:)
userInfo:nil
repeats:YES];
isExploding = YES;
}
return nil;
}
// Each time this method is called (by the timer), a larger circle is drawn. This happens
// until the circle is larger than the image, at which point we can end the animation
- (void)drawNewCircle:(NSTimer *)timer
{
if (i < max) {
// Where to draw the circle - it's a square!
rect.origin.x = p.x - i;
rect.origin.y = p.y - i;
rect.size.width = 2*i;
rect.size.height = 2*i;
// Perform the actual drawing
SWLockFocus(_mainImage);
//SWClearImageRect(image, rect);
// [[NSColor clearColor] set];
// [[NSBezierPath bezierPathWithOvalInRect:rect] fill];
[NSGraphicsContext saveGraphicsState];
[[NSGraphicsContext currentContext] setCompositingOperation:NSCompositeCopy];
[bombColor set];
[[NSBezierPath bezierPathWithOvalInRect:rect] fill];
[NSGraphicsContext restoreGraphicsState];
SWUnlockFocus(_mainImage);
// Change the redraw rect
redrawRect = rect;
// Get the view to perform a redraw to see the new circle
[NSApp sendAction:@selector(refreshImage:)
to:nil
from:self];
// bombSpeed == either 2 or 25, depending on the shift
i += bombSpeed;
} else {
[self endExplosion:timer];
}
}
- (void)endExplosion:(NSTimer *)timer
{
// Stop the timer
[timer invalidate];
[document handleUndoWithImageData:nil frame:NSZeroRect];
SWLockFocus(_mainImage);
[bombColor set];
NSRectFill(NSMakeRect(0,0,[_mainImage size].width, [_mainImage size].height));
SWUnlockFocus(_mainImage);
[SWImageTools clearImage:_bufferImage];
[NSApp sendAction:@selector(refreshImage:)
to:nil
from:nil];
isExploding = NO;
}
- (NSCursor *)cursor
{
if (!customCursor) {
NSImage *customImage = [NSImage imageNamed:@"bomb-cursor.png"];
customCursor = [[NSCursor alloc] initWithImage:customImage hotSpot:NSMakePoint(8,8)];
}
return customCursor;
}
// Overwrite to stop the animation
- (void)tieUpLooseEnds
{
if (isExploding) {
[self endExplosion:bombTimer];
}
[super tieUpLooseEnds];
}
- (NSString *)description
{
return @"Bomb";
}
@end