scrubber

- (void) updateMarker1ToPoint:(CGPoint) touchPoint

{

CGFloatpreMarker1Location =self.marker1Location;

CGFloatpreMarker2Location =self.marker2Location;

self.marker1Location= touchPoint.x-self.touch1Location;

if(self.marker1Location<0)

{

self.marker1Location=0;

}

if(self.marker1Location+_sliderImage.size.width>self.marker2Location)

{

self.marker1Location=self.marker2Location-_sliderImage.size.width;

}

_videoOffset1= [selfoffsetForMarker1Location];

_videoOffset2= [selfoffsetForMarker2Location];

if(_videoOffset2-_videoOffset1<=kMinimumVideoLength)

{

self.marker1Location= preMarker1Location;

self.marker2Location= preMarker2Location;

_videoOffset1= [selfoffsetForMarker1Location];

_videoOffset2= [selfoffsetForMarker2Location];

}

//if(_videoOffset2 - _videoOffset1 <= kMinimumVideoLength && self.marker1Location > preMarker1Location)//达到最小值

//{

//self.marker2Location = self.marker2Location + (self.marker1Location - preMarker1Location);

//

//if(self.marker2Location >= kMarker2Start || self.marker2Location >= stripWidth)

//{

//self.marker1Location = preMarker1Location;

//self.marker2Location = preMarker2Location;

//

//}

//

//_videoOffset1 = [self offsetForMarker1Location];

//_videoOffset2 = _videoOffset1 + 5;

//}

//else if(_videoOffset2 - _videoOffset1 >= kMaximumVideoLength && self.marker1Location < preMarker1Location)//达到最大值

//{

//self.marker2Location = self.marker2Location - (preMarker1Location - self.marker1Location);

//

//if(self.marker1Location <= kMarker1Start)

//{

//self.marker1Location = preMarker1Location;

//self.marker2Location = preMarker2Location;

//

//}

//

//_videoOffset1 = [self offsetForMarker1Location];

//_videoOffset2 = _videoOffset1 + kMaximumVideoLength;

//}

[self.delegateleftScrubberPositionChanged];

[self.delegaterightScrubberPositionChanged];

[selfsetNeedsDisplay];

}

- (void) updateMarker2ToPoint:(CGPoint) touchPoint

{

CGFloatpreMarker1Location =self.marker1Location;

CGFloatpreMarker2Location =self.marker2Location;

self.marker2Location= touchPoint.x-self.touch2Location;

if(self.marker2Location+self.sliderImage.size.width>self.width)

{

self.marker2Location=self.width-self.sliderImage.size.width;

}

if(self.marker2Location>stripWidth+self.sliderImage.size.width)

{

self.marker2Location=self.width+self.sliderImage.size.width;

}

if(self.marker2Location

{

self.marker2Location=self.marker1Location+_sliderImage.size.width;

}

_videoOffset1= [selfoffsetForMarker1Location];

_videoOffset2= [selfoffsetForMarker2Location];

if(_videoOffset2-_videoOffset1<=kMinimumVideoLength)

{

self.marker1Location= preMarker1Location;

self.marker2Location= preMarker2Location;

_videoOffset1= [selfoffsetForMarker1Location];

_videoOffset2= [selfoffsetForMarker2Location];

}

//if(_videoOffset2 - _videoOffset1 <= kMinimumVideoLength && self.marker2Location < preMarker2Location)//达到最小值

//{

//self.marker1Location = self.marker1Location - (preMarker2Location - self.marker2Location );

//

//if(self.marker1Location <= kMarker1Start)

//{

//self.marker1Location = preMarker1Location;

//self.marker2Location = preMarker2Location;

//

//}

//

//_videoOffset2 = [self offsetForMarker2Location];

//_videoOffset1 = _videoOffset2 - 5;

//}

//else if(_videoOffset2 - _videoOffset1 >= kMaximumVideoLength && self.marker2Location > preMarker2Location)//达到最大值

//{

//self.marker1Location = self.marker1Location + (self.marker2Location - preMarker2Location );

//

//if(self.marker2Location >= kMarker2Start)

//{

//self.marker1Location = preMarker1Location;

//self.marker2Location = preMarker2Location;

//}

//

//_videoOffset2 = [self offsetForMarker2Location];

////_videoOffset1 = _videoOffset2 - kMaximumVideoLength;

//_videoOffset1 = [self offsetForMarker1Location];

//}

[self.delegateleftScrubberPositionChanged];

[self.delegaterightScrubberPositionChanged];

[selfsetNeedsDisplay];

}