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Fix offset for demod frequency drag

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This commit is contained in:
Charles J. Cliffe 2015-05-11 01:23:02 -04:00
parent 7a2b86641d
commit ec030bafff
2 changed files with 7 additions and 2 deletions
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8
src/visual/WaterfallCanvas.cpp
View File

@ -36,7 +36,7 @@ wxEND_EVENT_TABLE()
WaterfallCanvas::WaterfallCanvas(wxWindow *parent, int *attribList) :
InteractiveCanvas(parent, attribList), spectrumCanvas(NULL), dragState(WF_DRAG_NONE), nextDragState(WF_DRAG_NONE), fft_size(0), waterfall_lines(
0), plan(
NULL), in(NULL), out(NULL), resampler(NULL), resamplerRatio(0), lastInputBandwidth(0), zoom(1), mouseZoom(1), otherWaterfallCanvas(NULL), polling(true), last_data_size(0), fft_in_data(NULL), fft_last_data(NULL), hoverAlpha(1.0) {
NULL), in(NULL), out(NULL), resampler(NULL), resamplerRatio(0), lastInputBandwidth(0), zoom(1), mouseZoom(1), otherWaterfallCanvas(NULL), polling(true), last_data_size(0), fft_in_data(NULL), fft_last_data(NULL), hoverAlpha(1.0), dragOfs(0) {
glContext = new WaterfallContext(this, &wxGetApp().GetContext(this));
@ -633,7 +633,7 @@ void WaterfallCanvas::OnMouseMoved(wxMouseEvent& event) {
}
if (dragState == WF_DRAG_FREQUENCY) {
long long bwTarget = (long long) (mouseTracker.getMouseX() * (float) getBandwidth()) + getCenterFrequency() - (getBandwidth() / 2);
long long bwTarget = (long long) (mouseTracker.getMouseX() * (float) getBandwidth()) + getCenterFrequency() - (getBandwidth() / 2) - dragOfs;
long long currentFreq = demod->getFrequency();
long long bwDiff = bwTarget - currentFreq;
int snap = wxGetApp().getFrequencySnap();
@ -753,6 +753,10 @@ void WaterfallCanvas::OnMouseDown(wxMouseEvent& event) {
dragState = nextDragState;
if (dragState && dragState != WF_DRAG_RANGE) {
DemodulatorInstance *demod = wxGetApp().getDemodMgr().getActiveDemodulator();
if (demod) {
dragOfs = (long long) (mouseTracker.getMouseX() * (float) getBandwidth()) + getCenterFrequency() - (getBandwidth() / 2) - demod->getFrequency();
}
wxGetApp().getDemodMgr().setActiveDemodulator(wxGetApp().getDemodMgr().getActiveDemodulator(), false);
}
}

1
src/visual/WaterfallCanvas.h
View File

@ -74,6 +74,7 @@ private:
int fft_size;
int waterfall_lines;
int dragOfs;
msresamp_crcf resampler;
double resamplerRatio;