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Show frequency / demod preview with snap on waterfall hover

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This commit is contained in:
Charles J. Cliffe 2016-01-13 00:07:42 -05:00
parent 23d2346d37
commit d2d6f92502
3 changed files with 96 additions and 0 deletions
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80
src/visual/PrimaryGLContext.cpp
View File

@ -151,6 +151,86 @@ void PrimaryGLContext::DrawDemodInfo(DemodulatorInstance *demod, RGBA4f color, l
}
void PrimaryGLContext::DrawFreqBwInfo(long long freq, int bw, RGBA4f color, long long center_freq, long long srate) {
if (!srate) {
srate = wxGetApp().getSampleRate();
}
GLint vp[4];
glGetIntegerv( GL_VIEWPORT, vp);
float viewHeight = (float) vp[3];
float viewWidth = (float) vp[2];
if (center_freq == -1) {
center_freq = wxGetApp().getFrequency();
}
float uxPos = (float) (freq - (center_freq - srate / 2)) / (float) srate;
uxPos = (uxPos - 0.5) * 2.0;
glDisable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// glColor4f(color.r, color.g, color.b, 0.6);
//
std::string lastType = wxGetApp().getDemodMgr().getLastDemodulatorType();
float ofs = (float) bw / (float) srate;
float ofsLeft = (lastType!="USB")?ofs:0, ofsRight = (lastType!="LSB")?ofs:0;
//
float labelHeight = 20.0 / viewHeight;
float hPos = -1.0 + labelHeight;
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//
// glBegin(GL_QUADS);
// glVertex3f(uxPos - ofsLeft, hPos + labelHeight, 0.0);
// glVertex3f(uxPos - ofsLeft, -1.0, 0.0);
//
// glVertex3f(uxPos + ofsRight, -1.0, 0.0);
// glVertex3f(uxPos + ofsRight, hPos + labelHeight, 0.0);
// glEnd();
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glColor4f(color.r, color.g, color.b, 0.2);
glBegin(GL_QUADS);
glVertex3f(uxPos - ofsLeft, 1.0, 0.0);
glVertex3f(uxPos - ofsLeft, -1.0, 0.0);
glVertex3f(uxPos + ofsRight, -1.0, 0.0);
glVertex3f(uxPos + ofsRight, 1.0, 0.0);
glEnd();
if (ofs * 2.0 < 16.0 / viewWidth) {
glColor4f(color.r, color.g, color.b, 0.2);
glBegin(GL_QUADS);
glVertex3f(uxPos - ofsLeft, hPos + labelHeight, 0.0);
glVertex3f(uxPos - ofsLeft, -1.0, 0.0);
glVertex3f(uxPos + ofsRight, -1.0, 0.0);
glVertex3f(uxPos + ofsRight, hPos + labelHeight, 0.0);
glEnd();
}
glColor4f(1.0, 1.0, 1.0, 0.8);
std::string demodLabel = std::to_string((double)freq/1000000.0);
if (lastType == "USB") {
GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demodLabel, uxPos, hPos, 16, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
} else if (lastType == "LSB") {
GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demodLabel, uxPos, hPos, 16, GLFont::GLFONT_ALIGN_RIGHT, GLFont::GLFONT_ALIGN_CENTER);
} else {
GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demodLabel, uxPos, hPos, 16, GLFont::GLFONT_ALIGN_CENTER, GLFont::GLFONT_ALIGN_CENTER);
}
glDisable(GL_BLEND);
}
void PrimaryGLContext::DrawDemod(DemodulatorInstance *demod, RGBA4f color, long long center_freq, long long srate) {
if (!demod) {
return;

1
src/visual/PrimaryGLContext.h
View File

@ -25,6 +25,7 @@ public:
void DrawRangeSelector(float uxPos1, float uxPos2, RGBA4f color);
void DrawDemod(DemodulatorInstance *demod, RGBA4f color, long long center_freq = -1, long long srate = 0);
void DrawDemodInfo(DemodulatorInstance *demod, RGBA4f color, long long center_freq = -1, long long srate = 0);
void DrawFreqBwInfo(long long freq, int bw, RGBA4f color, long long center_freq = - 1, long long srate = 0);
void setHoverAlpha(float hoverAlpha);

15
src/visual/SpectrumCanvas.cpp
View File

@ -96,6 +96,21 @@ void SpectrumCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
glContext->DrawDemodInfo(demods[i], ThemeMgr::mgr.currentTheme->fftHighlight, getCenterFrequency(), getBandwidth());
}
if (waterfallCanvas) {
MouseTracker *wfmt = waterfallCanvas->getMouseTracker();
if (wfmt->mouseInView() && !wxGetApp().getDemodMgr().getActiveDemodulator()) {
int snap = wxGetApp().getFrequencySnap();
long long freq = getFrequencyAt(wfmt->getMouseX());
if (snap > 1) {
freq = roundf((float)freq/(float)snap)*snap;
}
glContext->DrawFreqBwInfo(freq, wxGetApp().getDemodMgr().getLastBandwidth(), ThemeMgr::mgr.currentTheme->fftHighlight*0.35, getCenterFrequency(), getBandwidth());
}
}
glContext->EndDraw();
spectrumPanel.drawChildren();