Method OnKeyDown

src/visual/WaterfallCanvas.cpp:391–484

}

void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
    InteractiveCanvas::OnKeyDown(event);

    auto activeDemod = wxGetApp().getDemodMgr().getActiveContextModem();

    long long originalFreq = getCenterFrequency();
    long long freq = originalFreq;

    switch (event.GetKeyCode()) {
    case WXK_UP:
    case WXK_NUMPAD_UP:
            if (!shiftDown) {
                mouseZoom = 1.0;
                zoom = 0.95f;
            } else {
                scaleMove = 1.0;
            }
        break;
    case WXK_DOWN:
    case WXK_NUMPAD_DOWN:
            if (!shiftDown) {
                mouseZoom = 1.0;
                zoom = 1.05f;
            } else {
                scaleMove = -1.0;
            }
        break;
    case WXK_RIGHT:
    case WXK_NUMPAD_RIGHT:
        if (isView) {
            freqMove = shiftDown?5.0:1.0;
            freqMoving = true;
        } else {
            freq += shiftDown?(getBandwidth() * 10):(getBandwidth() / 2);
        }
        break;
    case WXK_LEFT:
    case WXK_NUMPAD_LEFT:
        if (isView) {
            freqMove = shiftDown?-5.0:-1.0;
            freqMoving = true;
        } else {
            freq -= shiftDown?(getBandwidth() * 10):(getBandwidth() / 2);
        }
        break;
    case 'D':
    case WXK_DELETE:
        if (!activeDemod) {
            break;
        }
        wxGetApp().removeDemodulator(activeDemod);
        wxGetApp().getDemodMgr().deleteThread(activeDemod);
        break;
    case WXK_SPACE:
        wxGetApp().showFrequencyInput();
        break;
    case 'E': //E is for 'Edit the label' of the active demodulator. 
        wxGetApp().showLabelInput();