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Code Issues Projects Releases Wiki Activity

Smooth keyboard navigation while zoomed.

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This commit is contained in:
Charles J. Cliffe 2015-08-19 00:48:52 -04:00
parent b236a9cb3e
commit 8b5500fc9b
2 changed files with 60 additions and 29 deletions
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85
src/visual/WaterfallCanvas.cpp
View File

@ -36,7 +36,7 @@ wxEND_EVENT_TABLE()
WaterfallCanvas::WaterfallCanvas(wxWindow *parent, int *attribList) :
InteractiveCanvas(parent, attribList), dragState(WF_DRAG_NONE), nextDragState(WF_DRAG_NONE), fft_size(0), waterfall_lines(0),
dragOfs(0), mouseZoom(1), zoom(1), hoverAlpha(1.0) {
dragOfs(0), mouseZoom(1), zoom(1), freqMove(0.0), freqMoving(false), hoverAlpha(1.0) {
glContext = new PrimaryGLContext(this, &wxGetApp().GetContext(this));
@ -102,6 +102,19 @@ void WaterfallCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
}
}
if (freqMove != 0.0) {
long long newFreq = getCenterFrequency() + (long long)((long double)getBandwidth()*freqMove) * 0.01;
updateCenterFrequency(newFreq);
if (!freqMoving) {
freqMove -= (freqMove * 0.2);
if (fabs(freqMove) < 0.01) {
freqMove = 0.0;
}
}
}
long long bw;
if (currentZoom != 1) {
long long freq = wxGetApp().getFrequency();
@ -280,6 +293,12 @@ void WaterfallCanvas::OnKeyUp(wxKeyEvent& event) {
zoom = 1.0;
mouseZoom = 1.05;
break;
case WXK_LEFT:
case WXK_NUMPAD_LEFT:
case WXK_RIGHT:
case WXK_NUMPAD_RIGHT:
freqMoving = false;
break;
}
}
@ -306,18 +325,20 @@ void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
break;
case WXK_RIGHT:
case WXK_NUMPAD_RIGHT:
if (shiftDown) {
freq += getBandwidth() * 10;
if (isView) {
freqMove = shiftDown?5.0:1.0;
freqMoving = true;
} else {
freq += getBandwidth() / 2;
freq += shiftDown?(getBandwidth() * 10):(getBandwidth() / 2);
}
break;
case WXK_LEFT:
case WXK_NUMPAD_LEFT:
if (shiftDown) {
freq -= getBandwidth() * 10;
if (isView) {
freqMove = shiftDown?-5.0:-1.0;
freqMoving = true;
} else {
freq -= getBandwidth() / 2;
freq -= shiftDown?(getBandwidth() * 10):(getBandwidth() / 2);
}
break;
case 'D':
@ -363,27 +384,7 @@ void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
}
if (freq != originalFreq) {
if (isView) {
setView(freq, getBandwidth());
if (spectrumCanvas) {
spectrumCanvas->setView(freq, getBandwidth());
}
long long minFreq = wxGetApp().getFrequency()-(wxGetApp().getSampleRate()/2);
long long maxFreq = wxGetApp().getFrequency()+(wxGetApp().getSampleRate()/2);
if (freq < minFreq) {
wxGetApp().setFrequency(freq+(wxGetApp().getSampleRate()/2));
}
if (freq > maxFreq) {
wxGetApp().setFrequency(freq-(wxGetApp().getSampleRate()/2));
}
} else {
if (spectrumCanvas) {
spectrumCanvas->setCenterFrequency(freq);
}
wxGetApp().setFrequency(freq);
}
updateCenterFrequency(freq);
}
}
@ -532,7 +533,7 @@ void WaterfallCanvas::OnMouseMoved(wxMouseEvent& event) {
setStatusText("Click to create a new demodulator or hold ALT to drag range, SPACE for direct center frequency input.");
} else {
setStatusText(
"Click to move active demodulator frequency or hold ALT to drag range; hold SHIFT to create new. Right drag or A / Z to Zoom. Arrow keys (+SHIFT) to move center frequency; SPACE for direct input.");
"Click to move active demodulator frequency or hold ALT to drag range; hold SHIFT to create new. Right drag or wheel to Zoom. Arrow keys to navigate/zoom.");
}
}
@ -751,3 +752,29 @@ void WaterfallCanvas::OnMouseRightReleased(wxMouseEvent& event) {
SpectrumVisualDataQueue *WaterfallCanvas::getVisualDataQueue() {
return &visualDataQueue;
}
void WaterfallCanvas::updateCenterFrequency(long long freq) {
if (isView) {
setView(freq, getBandwidth());
if (spectrumCanvas) {
spectrumCanvas->setView(freq, getBandwidth());
}
long long minFreq = wxGetApp().getFrequency()-(wxGetApp().getSampleRate()/2);
long long maxFreq = wxGetApp().getFrequency()+(wxGetApp().getSampleRate()/2);
if (freq < minFreq) {
wxGetApp().setFrequency(freq+(wxGetApp().getSampleRate()/2));
}
if (freq > maxFreq) {
wxGetApp().setFrequency(freq-(wxGetApp().getSampleRate()/2));
}
} else {
if (spectrumCanvas) {
spectrumCanvas->setCenterFrequency(freq);
}
wxGetApp().setFrequency(freq);
}
}

4
src/visual/WaterfallCanvas.h
View File

@ -45,6 +45,8 @@ private:
void OnMouseEnterWindow(wxMouseEvent& event);
void OnMouseLeftWindow(wxMouseEvent& event);
void updateCenterFrequency(long long freq);
std::vector<float> spectrum_points;
SpectrumCanvas *spectrumCanvas;
@ -59,6 +61,8 @@ private:
int dragOfs;
float mouseZoom, zoom;
bool freqMoving;
long double freqMove;
float hoverAlpha;
SpectrumVisualDataQueue visualDataQueue;