private void UpdateFrequency(long f, FrequencyChangeSource source)
{
var min = (long)(_displayCenterFrequency - _spectrumWidth / _scale / 2);
if (f < min)
{
f = min;
}
var max = (long)(_displayCenterFrequency + _spectrumWidth / _scale / 2);
if (f > max)
{
f = max;
}
if (_useSnap)
{
f = (f + Math.Sign(f) * _stepSize / 2) / _stepSize * _stepSize;
}
if (f != _frequency)
{
var args = new FrequencyEventArgs(f, source);
OnFrequencyChanged(args);
if (!args.Cancel)
{
_frequency = args.Frequency;
_performNeeded = true;
}
}
}
private bool UpdateCenterFrequency(long f, FrequencyChangeSource source)
{
if (f < 0)
{
f = 0L;
}
if (this._useSnap)
{
f = (long)((float)f + (float)(Math.Sign(f) * this._stepSize) * 0.5f) / this._stepSize * this._stepSize;
}
if (f != this._centerFrequency)
{
FrequencyEventArgs frequencyEventArgs = new FrequencyEventArgs(f, source);
this.OnCenterFrequencyChanged(frequencyEventArgs);
if (!frequencyEventArgs.Cancel)
{
long num = frequencyEventArgs.Frequency - this._centerFrequency;
this._displayCenterFrequency += num;
this._centerFrequency = frequencyEventArgs.Frequency;
this._performNeeded = true;
}
return(true);
}
return(false);
}
private void UpdateCenterFrequency(long f, FrequencyChangeSource source)
{
if (f < 0)
{
f = 0;
}
if (_useSnap)
{
f = (f + Math.Sign(f) * _stepSize / 2) / _stepSize * _stepSize;
}
if (f != _centerFrequency)
{
var args = new FrequencyEventArgs(f, source);
OnCenterFrequencyChanged(args);
if (!args.Cancel)
{
var delta = args.Frequency - _centerFrequency;
_displayCenterFrequency += delta;
_centerFrequency = args.Frequency;
_drawBackgroundNeeded = true;
}
}
}
private bool UpdateFrequency(long f, FrequencyChangeSource source)
{
if (this._useSnap)
{
f = (long)((float)f + (float)(Math.Sign(f) * this._stepSize) * 0.5f) / this._stepSize * this._stepSize;
}
long num = (long)((float)this._displayCenterFrequency - (float)this._spectrumWidth / this._scale * 0.5f);
long num2 = (long)((float)this._displayCenterFrequency + (float)this._spectrumWidth / this._scale * 0.5f);
if (source == FrequencyChangeSource.Scroll)
{
long num3 = 0L;
if (f < num)
{
num3 = f - num;
}
else if (f > num2)
{
num3 = f - num2;
}
if (num3 != 0L && !this.UpdateCenterFrequency(this._centerFrequency + num3, source))
{
return(false);
}
}
else if (f < num)
{
f = num;
}
else if (f > num2)
{
f = num2;
}
if (f != this._frequency)
{
FrequencyEventArgs frequencyEventArgs = new FrequencyEventArgs(f, source);
this.OnFrequencyChanged(frequencyEventArgs);
if (!frequencyEventArgs.Cancel)
{
this._frequency = frequencyEventArgs.Frequency;
this._performNeeded = true;
}
return(true);
}
return(false);
}
private void UpdateCenterFrequency(long f, FrequencyChangeSource source)
{
if (f < 0)
{
f = 0;
}
if (_useSnap)
{
f = (f + Math.Sign(f) * _stepSize / 2) / _stepSize * _stepSize;
}
if (f != _centerFrequency)
{
var args = new FrequencyEventArgs(f, source);
OnCenterFrequencyChanged(args);
if (!args.Cancel)
{
var delta = args.Frequency - _centerFrequency;
_displayCenterFrequency += delta;
_centerFrequency = args.Frequency;
_drawBackgroundNeeded = true;
}
}
}
private void UpdateFrequency(long f, FrequencyChangeSource source)
{
var min = (long) (_displayCenterFrequency - _spectrumWidth / _scale / 2);
if (f < min)
{
f = min;
}
var max = (long) (_displayCenterFrequency + _spectrumWidth / _scale / 2);
if (f > max)
{
f = max;
}
if (_useSnap)
{
f = (f + Math.Sign(f) * _stepSize / 2) / _stepSize * _stepSize;
}
if (f != _frequency)
{
var args = new FrequencyEventArgs(f, source);
OnFrequencyChanged(args);
if (!args.Cancel)
{
_frequency = args.Frequency;
_performNeeded = true;
}
}
}
public FrequencyEventArgs(long frequency, FrequencyChangeSource source)
{
Frequency = frequency;
Source = source;
}
public FrequencyEventArgs(long frequency, FrequencyChangeSource source)
{
Frequency = frequency;
Source = source;
}
public FrequencyEventArgs(long frequency, FrequencyChangeSource source)
{
this.Frequency = frequency;
this.Source = source;
}
private void UpdateFrequency(long f, FrequencyChangeSource source)
{
long num1 = (long) ((double) this._displayCenterFrequency - (double) this._spectrumWidth / (double) this._scale / 2.0);
if (f < num1)
f = num1;
long num2 = (long) ((double) this._displayCenterFrequency + (double) this._spectrumWidth / (double) this._scale / 2.0);
if (f > num2)
f = num2;
if (this._useSnap)
f = (f + (long) (Math.Sign(f) * this._stepSize / 2)) / (long) this._stepSize * (long) this._stepSize;
if (f == this._frequency)
return;
FrequencyEventArgs e = new FrequencyEventArgs(f, source);
this.OnFrequencyChanged(e);
if (e.Cancel)
return;
this._frequency = e.Frequency;
this._performNeeded = true;
}
private void UpdateCenterFrequency(long f, FrequencyChangeSource source)
{
if (f < 0L)
f = 0L;
if (this._useSnap)
f = (f + (long) (Math.Sign(f) * this._stepSize / 2)) / (long) this._stepSize * (long) this._stepSize;
if (f == this._centerFrequency)
return;
FrequencyEventArgs e = new FrequencyEventArgs(f, source);
this.OnCenterFrequencyChanged(e);
if (e.Cancel)
return;
this._displayCenterFrequency += e.Frequency - this._centerFrequency;
this._centerFrequency = e.Frequency;
this._drawBackgroundNeeded = true;
}
public FrequencyEventArgs(long frequency, FrequencyChangeSource source)
{
this.Frequency = frequency;
this.Source = source;
}
