void SpectrumCanvas::OnMouseMoved(wxMouseEvent& event) {
    InteractiveCanvas::OnMouseMoved(event);
    if (mouseTracker.mouseDown()) {
        int freqChange = mouseTracker.getDeltaMouseX() * getBandwidth();

        if (freqChange != 0) {
            moveCenterFrequency(freqChange);
        }
    }
    else if (scaleFactorEnabled && mouseTracker.mouseRightDown()) {
        
        float yDelta = mouseTracker.getDeltaMouseY();

        scaleFactor += yDelta*2.0;
        if (scaleFactor < 0.25) {
            scaleFactor = 0.25;
        }
        if (scaleFactor > 10.0) {
            scaleFactor = 10.0;
        }
        
        resetScaleFactor = false;
        updateScaleFactor(scaleFactor);
    } else {
        if (scaleFactorEnabled) {
            setStatusText("Drag horizontal to adjust center frequency. Right-drag or SHIFT+UP/DOWN to adjust vertical scale; right-click to reset. 'B' to toggle decibels display.");
        } else {
            setStatusText("Displaying spectrum of active demodulator.");
        }
    }
}
void SpectrumCanvas::OnMouseMoved(wxMouseEvent& event) {
    InteractiveCanvas::OnMouseMoved(event);
    if (mouseTracker.mouseDown()) {
        int freqChange = mouseTracker.getDeltaMouseX() * getBandwidth();

        if (freqChange != 0) {
            moveCenterFrequency(freqChange);
        }
    } else {
        setStatusText("Click and drag to adjust center frequency.");
    }
}