Add mute button and 'M' to toggle mute on waterfall hover

src/AppFrame.cpp

@@ -103,12 +103,25 @@ AppFrame::AppFrame() :
 
     demodTray->AddSpacer(1);
 
+    wxBoxSizer *demodGainTray = new wxBoxSizer(wxVERTICAL);
+            
     demodGainMeter = new MeterCanvas(this, attribList);
     demodGainMeter->setMax(2.0);
     demodGainMeter->setHelpTip("Current Demodulator Gain Level.  Click / Drag to set Gain level.");
     demodGainMeter->setShowUserInput(false);
-    demodTray->Add(demodGainMeter, 1, wxEXPAND | wxALL, 0);
+    demodGainTray->Add(demodGainMeter, 8, wxEXPAND | wxALL, 0);
 
+    demodGainTray->AddSpacer(1);
+
+    demodMuteButton = new ModeSelectorCanvas(this, attribList);
+    demodMuteButton->addChoice(1, "M");
+    demodMuteButton->setHelpTip("Demodulator Mute Toggle");
+    demodMuteButton->setToggleMode(true);
+          
+    demodGainTray->Add(demodMuteButton, 1, wxEXPAND | wxALL, 0);
+
+    demodTray->Add(demodGainTray, 1, wxEXPAND | wxALL, 0);
+            
     vbox->Add(demodTray, 12, wxEXPAND | wxALL, 0);
     vbox->AddSpacer(1);
 
@@ -663,6 +676,7 @@ void AppFrame::OnIdle(wxIdleEvent& event) {
             outputDeviceMenuItems[outputDevice]->Check(true);
             int dType = demod->getDemodulatorType();
             demodModeSelector->setSelection(dType);
+            demodMuteButton->setSelection(demod->isMuted()?1:-1);
         }
         if (demodWaterfallCanvas->getDragState() == WaterfallCanvas::WF_DRAG_NONE) {
             long long centerFreq = demod->getFrequency();
@@ -694,6 +708,22 @@ void AppFrame::OnIdle(wxIdleEvent& event) {
                 demod->setDemodulatorType(dSelection);
             }
 
+            int muteMode = demodMuteButton->getSelection();
+            if (demodMuteButton->modeChanged()) {
+                if (demod->isMuted() && muteMode == -1) {
+                    demod->setMuted(false);
+                } else if (!demod->isMuted() && muteMode == 1) {
+                    demod->setMuted(true);
+                }
+                demodMuteButton->clearModeChanged();
+            } else {
+                if (demod->isMuted() && muteMode == -1) {
+                    demodMuteButton->setSelection(1);
+                } else if (!demod->isMuted() && muteMode == 1) {
+                    demodMuteButton->setSelection(-1);
+                }
+            }
+
             demodWaterfallCanvas->setBandwidth(demodBw);
             demodSpectrumCanvas->setBandwidth(demodBw);
         }
@@ -812,6 +842,7 @@ void AppFrame::saveSession(std::string fileName) {
         *demod->newChild("stereo") = (*instance_i)->isStereo() ? 1 : 0;
         *demod->newChild("output_device") = outputDevices[(*instance_i)->getOutputDevice()].name;
         *demod->newChild("gain") = (*instance_i)->getGain();
+        *demod->newChild("muted") = (*instance_i)->isMuted() ? 1 : 0;
     }
 
     s.SaveToFileXML(fileName);
@@ -859,6 +890,7 @@ bool AppFrame::loadSession(std::string fileName) {
             float squelch_level = demod->hasAnother("squelch_level") ? (float) *demod->getNext("squelch_level") : 0;
             int squelch_enabled = demod->hasAnother("squelch_enabled") ? (int) *demod->getNext("squelch_enabled") : 0;
             int stereo = demod->hasAnother("stereo") ? (int) *demod->getNext("stereo") : 0;
+            int muted = demod->hasAnother("muted") ? (int) *demod->getNext("muted") : 0;
             std::string output_device = demod->hasAnother("output_device") ? string(*(demod->getNext("output_device"))) : "";
             float gain = demod->hasAnother("gain") ? (float) *demod->getNext("gain") : 1.0;
 
@@ -870,6 +902,7 @@ bool AppFrame::loadSession(std::string fileName) {
             newDemod->setFrequency(freq);
             newDemod->setGain(gain);
             newDemod->updateLabel(freq);
+            newDemod->setMuted(muted?true:false);
             if (squelch_enabled) {
                 newDemod->setSquelchEnabled(true);
                 newDemod->setSquelchLevel(squelch_level);

src/AppFrame.h

@@ -81,6 +81,7 @@ private:
 //    UITestCanvas *testCanvas;
     MeterCanvas *spectrumAvgMeter;
     MeterCanvas *waterfallSpeedMeter;
+    ModeSelectorCanvas *demodMuteButton;
 
     DemodulatorInstance *activeDemodulator;
 

src/demod/DemodulatorInstance.cpp

@@ -10,6 +10,7 @@ DemodulatorInstance::DemodulatorInstance() :
 	active.store(false);
 	squelch.store(false);
 	stereo.store(false);
+    muted.store(false);
 	tracking.store(false);
 	follow.store(false);
 	currentAudioSampleRate.store(0);
@@ -412,6 +413,15 @@ void DemodulatorInstance::setTracking(bool tracking) {
     this->tracking = tracking;
 }
 
+bool DemodulatorInstance::isMuted() {
+    return demodulatorThread->isMuted();
+}
+
+void DemodulatorInstance::setMuted(bool muted) {
+    this->muted = muted;
+    demodulatorThread->setMuted(muted);
+}
+
 DemodulatorThreadInputQueue *DemodulatorInstance::getIQInputDataPipe() {
     return pipeIQInputData;
 }

src/demod/DemodulatorInstance.h

@@ -73,6 +73,9 @@ public:
 
     bool isTracking();
     void setTracking(bool tracking);
+    
+    bool isMuted();
+    void setMuted(bool muted);
 
     DemodulatorThreadInputQueue *getIQInputDataPipe();
 
@@ -98,6 +101,7 @@ private:
     std::atomic_bool active;
     std::atomic_bool squelch;
     std::atomic_bool stereo;
+    std::atomic_bool muted;
 
     std::atomic_llong currentFrequency;
     std::atomic_int currentBandwidth;

src/demod/DemodulatorThread.cpp

@@ -14,6 +14,7 @@
 DemodulatorThread::DemodulatorThread() : IOThread(), iqAutoGain(NULL), amOutputCeil(1), amOutputCeilMA(1), amOutputCeilMAA(1), audioSampleRate(0), squelchLevel(0), signalLevel(0), squelchEnabled(false), iqInputQueue(NULL), audioOutputQueue(NULL), audioVisOutputQueue(NULL), threadQueueControl(NULL), threadQueueNotify(NULL) {
 
 	stereo.store(false);
+    muted.store(false);
 	agcEnabled.store(false);
 	demodulatorType.store(DEMOD_TYPE_FM);
 
@@ -404,7 +405,11 @@ void DemodulatorThread::run() {
         }
 
         if (ati != NULL) {
-            audioOutputQueue->push(ati);
+            if (!muted.load()) {
+                audioOutputQueue->push(ati);
+            } else {
+                ati->setRefCount(0);
+            }
         }
 
         if (!threadQueueControl->empty()) {
@@ -510,6 +515,14 @@ bool DemodulatorThread::isStereo() {
     return stereo.load();
 }
 
+bool DemodulatorThread::isMuted() {
+    return muted.load();
+}
+
+void DemodulatorThread::setMuted(bool muted) {
+    this->muted.store(muted);
+}
+
 void DemodulatorThread::setAGC(bool state) {
 	agcEnabled.store(state);
 }

src/demod/DemodulatorThread.h

@@ -27,6 +27,9 @@ public:
     void setAGC(bool state);
     bool getAGC();
 
+    void setMuted(bool state);
+    bool isMuted();
+    
     float getSignalLevel();
     void setSquelchLevel(float signal_level_in);
     float getSquelchLevel();
@@ -64,6 +67,7 @@ protected:
     float amOutputCeilMAA;
 
     std::atomic_bool stereo;
+    std::atomic_bool muted;
     std::atomic_bool agcEnabled;
     std::atomic_int demodulatorType;
     int audioSampleRate;

src/visual/ModeSelectorCanvas.cpp

@@ -25,7 +25,7 @@ EVT_ENTER_WINDOW(ModeSelectorCanvas::OnMouseEnterWindow)
 wxEND_EVENT_TABLE()
 
 ModeSelectorCanvas::ModeSelectorCanvas(wxWindow *parent, int *attribList) :
-InteractiveCanvas(parent, attribList), numChoices(0), currentSelection(-1) {
+InteractiveCanvas(parent, attribList), numChoices(0), currentSelection(-1), toggleMode(false), inputChanged(false) {
 
     glContext = new ModeSelectorContext(this, &wxGetApp().GetContext(this));
 }
@@ -97,10 +97,21 @@ void ModeSelectorCanvas::OnMouseReleased(wxMouseEvent& event) {
 
     const wxSize ClientSize = GetClientSize();
 
+    int selectedButton = currentSelection;
     if (mouseTracker.getOriginDeltaMouseX() < 2.0 / ClientSize.y) {
-        currentSelection = getHoveredSelection();
+        selectedButton = getHoveredSelection();
     }
 
+    if (toggleMode && (currentSelection == selectedButton)) {
+        selectedButton = -1;
+    }
+    
+    if (currentSelection != selectedButton) {
+        inputChanged = true;
+    }
+    
+    currentSelection = selectedButton;
+    
     SetCursor (wxCURSOR_ARROW);
 }
 
@@ -148,4 +159,15 @@ int ModeSelectorCanvas::getSelection() {
     return selections[currentSelection].value;
 }
 
+void ModeSelectorCanvas::setToggleMode(bool toggleMode) {
+    this->toggleMode = toggleMode;
+}
+
+bool ModeSelectorCanvas::modeChanged() {
+    return inputChanged;
+}
+
+void ModeSelectorCanvas::clearModeChanged() {
+    inputChanged = false;
+}
 

src/visual/ModeSelectorCanvas.h

@@ -35,6 +35,11 @@ public:
     void setSelection(int value);
     int getSelection();
 
+    void setToggleMode(bool toggleMode);
+
+    bool modeChanged();
+    void clearModeChanged();
+    
 private:
     void setNumChoices(int numChoices_in);
 
@@ -53,6 +58,8 @@ private:
     std::string helpTip;
     int numChoices;
     int currentSelection;
+    bool toggleMode;
+    bool inputChanged;
     std::vector<ModeSelectorMode> selections;
     //
 wxDECLARE_EVENT_TABLE();

src/visual/PrimaryGLContext.cpp

@@ -94,7 +94,12 @@ void PrimaryGLContext::DrawDemodInfo(DemodulatorInstance *demod, RGB3f color, lo
 
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
-    glColor4f(0, 0, 0, 0.35);
+    if (demod->isMuted()) {
+        glColor4f(0.8, 0, 0, 0.35);
+    } else {
+        glColor4f(0, 0, 0, 0.35);
+    }
+    
     glBegin(GL_QUADS);
     glVertex3f(uxPos - ofsLeft, hPos + labelHeight, 0.0);
     glVertex3f(uxPos - ofsLeft, -1.0, 0.0);
@@ -128,12 +133,18 @@ void PrimaryGLContext::DrawDemodInfo(DemodulatorInstance *demod, RGB3f color, lo
 
     glColor4f(1.0, 1.0, 1.0, 0.8);
 
+    std::string demodLabel = demod->getLabel();
+    
+    if (demod->isMuted()) {
+        demodLabel.append("[M]");
+    }
+    
     if (demod->getDemodulatorType() == DEMOD_TYPE_USB) {
-        GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demod->getLabel(), uxPos, hPos, 16, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
+        GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demodLabel, uxPos, hPos, 16, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
     } else if (demod->getDemodulatorType() == DEMOD_TYPE_LSB) {
-        GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demod->getLabel(), uxPos, hPos, 16, GLFont::GLFONT_ALIGN_RIGHT, GLFont::GLFONT_ALIGN_CENTER);
+        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(demod->getLabel(), uxPos, hPos, 16, GLFont::GLFONT_ALIGN_CENTER, GLFont::GLFONT_ALIGN_CENTER);
+        GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demodLabel, uxPos, hPos, 16, GLFont::GLFONT_ALIGN_CENTER, GLFont::GLFONT_ALIGN_CENTER);
     }
 
     glDisable(GL_BLEND);
@@ -230,7 +241,11 @@ void PrimaryGLContext::DrawDemod(DemodulatorInstance *demod, RGB3f color, long l
     glColor3f(0, 0, 0);
     GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demodStr, 2.0 * (uxPos - 0.5) + xOfs, -1.0 + hPos - yOfs, 16, demodAlign,
             GLFont::GLFONT_ALIGN_CENTER);
-    glColor3f(0.8, 0.8, 0.8);
+    if (demod->isMuted()) {
+        glColor3f(0.8, 0.2, 0.2);
+    } else {
+        glColor3f(0.8, 0.2, 0.2);
+    }
     GLFont::getFont(GLFont::GLFONT_SIZE16).drawString(demodStr, 2.0 * (uxPos - 0.5), -1.0 + hPos, 16, demodAlign, GLFont::GLFONT_ALIGN_CENTER);
 
     glDisable(GL_BLEND);

src/visual/WaterfallCanvas.cpp

@@ -322,6 +322,12 @@ void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
         wxGetApp().removeDemodulator(activeDemod);
         wxGetApp().getDemodMgr().deleteThread(activeDemod);
         break;
+    case 'M':
+        if (!activeDemod) {
+            break;
+        }
+        activeDemod->setMuted(!activeDemod->isMuted());
+        break;
     case 'S':
         if (!activeDemod) {
             break;