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Code Issues Projects Releases Wiki Activity

support multi-touch mouse-down, resolves #2

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This commit is contained in:
Jesús A. Álvarez 2016-11-18 22:12:56 +01:00
parent 739e763089
commit 134e15691d
1 changed files with 51 additions and 24 deletions
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75
Mini vMac/TrackPad.m
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@ -19,7 +19,8 @@
NSTimeInterval previousClickTime, previousTouchTime;
CGFloat touchDistanceThreshold;
CGPoint previousTouchLoc;
BOOL click, drag;
BOOL shouldClick;
BOOL isDragging;
NSMutableSet *currentTouches;
}
@ -28,58 +29,84 @@
touchTimeThreshold = 0.25;
touchDistanceThreshold = 16;
currentTouches = [NSMutableSet setWithCapacity:4];
self.multipleTouchEnabled = YES;
}
return self;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
click = YES;
CGPoint touchLoc = [touches.anyObject locationInView:self];
if ((event.timestamp - previousTouchTime < touchTimeThreshold) &&
fabs(previousTouchLoc.x - touchLoc.x) < touchDistanceThreshold &&
fabs(previousTouchLoc.y - touchLoc.y) < touchDistanceThreshold) {
drag = YES;
[[AppDelegate sharedEmulator] setMouseButton:YES];
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
[currentTouches unionSet:touches];
if (currentTouches.count == 1) {
[self firstTouchBegan:touches.anyObject withEvent:event];
} else {
[self startDragging];
}
previousTouchTime = event.timestamp;
previousTouchLoc = touchLoc;
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
CGPoint touchLoc = [touches.anyObject locationInView:self];
CGPoint locDiff = touchLoc;
locDiff.x -= previousTouchLoc.x;
locDiff.y -= previousTouchLoc.y;
- (void)firstTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event {
CGPoint touchLoc = [touch locationInView:self];
if (!isDragging && (event.timestamp - previousTouchTime < touchTimeThreshold) &&
fabs(previousTouchLoc.x - touchLoc.x) < touchDistanceThreshold &&
fabs(previousTouchLoc.y - touchLoc.y) < touchDistanceThreshold) {
[self startDragging];
}
}
- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
UITouch *touch = touches.anyObject;
CGPoint touchLoc = [touch locationInView:self];
previousTouchLoc = [touch previousLocationInView:self];
// acceleration
CGPoint locDiff = CGPointMake(touchLoc.x - previousTouchLoc.x, touchLoc.y - previousTouchLoc.y);
NSTimeInterval timeDiff = 100 * (event.timestamp - previousTouchTime);
NSTimeInterval accel = TRACKPAD_ACCEL_N / (TRACKPAD_ACCEL_T + ((timeDiff * timeDiff)/TRACKPAD_ACCEL_D));
locDiff.x *= accel;
locDiff.y *= accel;
click = NO;
shouldClick = NO;
[[AppDelegate sharedEmulator] moveMouseX:locDiff.x Y:locDiff.y];
previousTouchTime = event.timestamp;
previousTouchLoc = touchLoc;
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
[currentTouches minusSet:touches];
if (currentTouches.count > 0) {
return;
}
CGPoint touchLoc = [touches.anyObject locationInView:self];
if (click && (event.timestamp - previousTouchTime < touchTimeThreshold)) {
if (shouldClick && (event.timestamp - previousTouchTime < touchTimeThreshold)) {
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(mouseClick) object:nil];
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(mouseUp) object:nil];
[self performSelector:@selector(mouseClick) withObject:nil afterDelay:touchTimeThreshold];
}
click = NO;
if (drag) {
[[AppDelegate sharedEmulator] setMouseButton:NO];
drag = NO;
shouldClick = NO;
if (isDragging) {
[self stopDragging];
}
previousTouchLoc = touchLoc;
previousTouchTime = event.timestamp;
}
- (void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
[currentTouches minusSet:touches];
[self stopDragging];
}
- (void)startDragging {
isDragging = YES;
shouldClick = NO;
[[AppDelegate sharedEmulator] setMouseButton:YES];
}
- (void)stopDragging {
isDragging = NO;
shouldClick = NO;
[[AppDelegate sharedEmulator] setMouseButton:NO];
}
- (void)mouseClick {
if (drag) {
if (isDragging) {
return;
}
[[AppDelegate sharedEmulator] setMouseButton:YES];