Added airspy module + changes to the UI for scaling

CMakeLists.txt

@@ -5,6 +5,7 @@ option(OPT_BUILD_RTL_TCP_SOURCE "Build RTL-TCP Source Module (no dependencies re
 option(OPT_BUILD_SPYSERVER_SOURCE "Build SpyServer Source Module (no dependencies required)" ON)
 option(OPT_BUILD_SOAPY_SOURCE "Build SoapySDR Source Module (Depedencies: soapysdr)" ON)
 option(OPT_BUILD_AIRSPYHF_SOURCE "Build Airspy HF+ Source Module (Depedencies: libairspyhf)" ON)
+option(OPT_BUILD_AIRSPY_SOURCE "Build Airspy Source Module (Depedencies: libairspy)" ON)
 option(OPT_BUILD_PLUTOSDR_SOURCE "Build PlutoSDR Source Module (Depedencies: libiio, libad9361)" ON)
 option(OPT_BUILD_HACKRF_SOURCE "Build HackRF Source Module (Depedencies: libhackrf)" ON)
 option(OPT_BUILD_AUDIO_SINK "Build Audio Sink Module (Depedencies: portaudio)" ON)
@@ -33,6 +34,10 @@ if (OPT_BUILD_AIRSPYHF_SOURCE)
 add_subdirectory("airspyhf_source")
 endif (OPT_BUILD_AIRSPYHF_SOURCE)
 
+if (OPT_BUILD_AIRSPY_SOURCE)
+add_subdirectory("airspy_source")
+endif (OPT_BUILD_AIRSPY_SOURCE)
+
 if (OPT_BUILD_PLUTOSDR_SOURCE)
 add_subdirectory("plutosdr_source")
 endif (OPT_BUILD_PLUTOSDR_SOURCE)

airspy_source/CMakeLists.txt

@@ -0,0 +1,31 @@
+cmake_minimum_required(VERSION 3.13)
+project(airspy_source)
+
+if (MSVC)
+    set(CMAKE_CXX_FLAGS "-O2 /std:c++17 /EHsc")
+else()
+    set(CMAKE_CXX_FLAGS "-O3 -std=c++17 -fpermissive")
+endif (MSVC)
+
+include_directories("src/")
+
+file(GLOB SRC "src/*.cpp")
+
+add_library(airspy_source SHARED ${SRC})
+target_link_libraries(airspy_source PRIVATE sdrpp_core)
+set_target_properties(airspy_source PROPERTIES PREFIX "")
+
+if (MSVC)
+    # Lib path
+    target_link_directories(sdrpp_core PUBLIC "C:/Program Files/PothosSDR/bin/")
+
+    target_link_libraries(airspy_source PUBLIC airspy)
+else (MSVC)
+    find_package(PkgConfig)
+
+    pkg_check_modules(LIBAIRSPYHF REQUIRED libairspy)
+
+    target_include_directories(airspy_source PUBLIC ${LIBAIRSPYHF_INCLUDE_DIRS})
+    target_link_directories(airspy_source PUBLIC ${LIBAIRSPYHF_LIBRARY_DIRS})
+    target_link_libraries(airspy_source PUBLIC ${LIBAIRSPYHF_LIBRARIES})
+endif (MSVC)

airspy_source/src/main.cpp

@@ -0,0 +1,426 @@
+#include <imgui.h>
+#include <spdlog/spdlog.h>
+#include <module.h>
+#include <gui/gui.h>
+#include <signal_path/signal_path.h>
+#include <core.h>
+#include <gui/style.h>
+#include <config.h>
+#include <libairspy/airspy.h>
+
+#define CONCAT(a, b) ((std::string(a) + b).c_str())
+
+SDRPP_MOD_INFO {
+    /* Name:            */ "airspy_source",
+    /* Description:     */ "Airspy source module for SDR++",
+    /* Author:          */ "Ryzerth",
+    /* Version:         */ 0, 1, 0,
+    /* Max instances    */ 1
+};
+
+class AirspySourceModule : public ModuleManager::Instance {
+public:
+    AirspySourceModule(std::string name) {
+        this->name = name;
+
+        sampleRate = 10000000.0;
+
+        handler.ctx = this;
+        handler.selectHandler = menuSelected;
+        handler.deselectHandler = menuDeselected; 
+        handler.menuHandler = menuHandler;
+        handler.startHandler = start;
+        handler.stopHandler = stop;
+        handler.tuneHandler = tune;
+        handler.stream = &stream;
+
+        refresh();
+
+        selectFirst();
+
+        sigpath::sourceManager.registerSource("Airspy", &handler);
+    }
+
+    ~AirspySourceModule() {
+        
+    }
+
+    void enable() {
+        enabled = true;
+    }
+
+    void disable() {
+        enabled = false;
+    }
+
+    bool isEnabled() {
+        return enabled;
+    }
+
+    void refresh() {
+        devList.clear();
+        devListTxt = "";
+
+        uint64_t serials[256];
+        int n = airspy_list_devices(serials, 256);
+
+        char buf[1024];
+        for (int i = 0; i < n; i++) {
+            sprintf(buf, "%016" PRIX64, serials[i]);
+            devList.push_back(serials[i]);
+            devListTxt += buf;
+            devListTxt += '\0';
+        }
+    }
+
+    void selectFirst() {
+        if (devList.size() != 0) {
+            selectBySerial(devList[0]);
+        }
+    }
+
+    void selectByString(std::string serial) {
+        char buf[1024];
+        for (int i = 0; i < devList.size(); i++) {
+            sprintf(buf, "%016" PRIX64, devList[i]);
+            std::string str = buf;
+            if (serial == str) {
+                selectBySerial(devList[i]);
+                return;
+            }
+        }
+        selectFirst();
+    }
+
+    void selectBySerial(uint64_t serial) {
+        selectedSerial = serial;
+        airspy_device* dev;
+        int err = airspy_open_sn(&dev, selectedSerial);
+        if (err != 0) {
+            char buf[1024];
+            sprintf(buf, "%016" PRIX64, selectedSerial);
+            spdlog::error("Could not open Airspy HF+ {0}", buf);
+            return;
+        }
+
+        uint32_t sampleRates[256];
+        airspy_get_samplerates(dev, sampleRates, 0);
+        int n = sampleRates[0];
+        airspy_get_samplerates(dev, sampleRates, n);
+        char buf[1024];
+        sampleRateList.clear();
+        sampleRateListTxt = "";
+        for (int i = 0; i < n; i++) {
+            sampleRateList.push_back(sampleRates[i]);
+            sprintf(buf, "%d", sampleRates[i]);
+            sampleRateListTxt += buf;
+            sampleRateListTxt += '\0';
+        }
+
+        srId = 0;
+
+        airspy_close(dev);
+    }
+
+private:
+    static void menuSelected(void* ctx) {
+        AirspySourceModule* _this = (AirspySourceModule*)ctx;
+        core::setInputSampleRate(_this->sampleRate);
+        spdlog::info("AirspySourceModule '{0}': Menu Select!", _this->name);
+    }
+
+    static void menuDeselected(void* ctx) {
+        AirspySourceModule* _this = (AirspySourceModule*)ctx;
+        spdlog::info("AirspySourceModule '{0}': Menu Deselect!", _this->name);
+    }
+    
+    static void start(void* ctx) {
+        AirspySourceModule* _this = (AirspySourceModule*)ctx;
+        if (_this->running) {
+            return;
+        }
+        if (_this->selectedSerial == 0) {
+            spdlog::error("Tried to start AirspyHF+ source with null serial");
+            return;
+        }
+
+        int err = airspy_open_sn(&_this->openDev, _this->selectedSerial);
+        if (err != 0) {
+            char buf[1024];
+            sprintf(buf, "%016" PRIX64, _this->selectedSerial);
+            spdlog::error("Could not open Airspy {0}", buf);
+            return;
+        }
+
+        airspy_set_samplerate(_this->openDev, _this->sampleRateList[_this->srId]);
+        airspy_set_freq(_this->openDev, _this->freq);
+        
+        if (_this->gainMode == 0) {
+            airspy_set_lna_agc(_this->openDev, 0);
+            airspy_set_mixer_agc(_this->openDev, 0);
+            airspy_set_sensitivity_gain(_this->openDev, _this->sensitiveGain);
+        }
+        else if (_this->gainMode == 1) {
+            airspy_set_lna_agc(_this->openDev, 0);
+            airspy_set_mixer_agc(_this->openDev, 0);
+            airspy_set_linearity_gain(_this->openDev, _this->linearGain);
+        }
+        else if (_this->gainMode == 2) {
+            if (_this->lnaAgc) {
+                airspy_set_lna_agc(_this->openDev, 1);
+            }
+            else {
+                airspy_set_lna_agc(_this->openDev, 0);
+                airspy_set_lna_gain(_this->openDev, _this->lnaGain);
+            }
+            if (_this->mixerAgc) {
+                airspy_set_mixer_agc(_this->openDev, 1);
+            }
+            else {
+                airspy_set_mixer_agc(_this->openDev, 0);
+                airspy_set_mixer_gain(_this->openDev, _this->mixerGain);
+            }
+            airspy_set_vga_gain(_this->openDev, _this->vgaGain);
+        }
+
+        airspy_set_rf_bias(_this->openDev, _this->biasT);
+
+        airspy_start_rx(_this->openDev, callback, _this);
+
+        _this->running = true;
+        spdlog::info("AirspySourceModule '{0}': Start!", _this->name);
+    }
+    
+    static void stop(void* ctx) {
+        AirspySourceModule* _this = (AirspySourceModule*)ctx;
+        if (!_this->running) {
+            return;
+        }
+        _this->running = false;
+        _this->stream.stopWriter();
+        airspy_close(_this->openDev);
+        _this->stream.clearWriteStop();
+        spdlog::info("AirspySourceModule '{0}': Stop!", _this->name);
+    }
+    
+    static void tune(double freq, void* ctx) {
+        AirspySourceModule* _this = (AirspySourceModule*)ctx;
+        if (_this->running) {
+            airspy_set_freq(_this->openDev, freq);
+        }
+        _this->freq = freq;
+        spdlog::info("AirspySourceModule '{0}': Tune: {1}!", _this->name, freq);
+    }
+    
+    static void menuHandler(void* ctx) {
+        AirspySourceModule* _this = (AirspySourceModule*)ctx;
+        float menuWidth = ImGui::GetContentRegionAvailWidth();
+
+        if (_this->running) { style::beginDisabled(); }
+
+        ImGui::SetNextItemWidth(menuWidth);
+        if (ImGui::Combo(CONCAT("##_airspy_dev_sel_", _this->name), &_this->devId, _this->devListTxt.c_str())) {
+            _this->selectBySerial(_this->devList[_this->devId]);
+        }
+
+        if (ImGui::Combo(CONCAT("##_airspy_sr_sel_", _this->name), &_this->srId, _this->sampleRateListTxt.c_str())) {
+            _this->sampleRate = _this->sampleRateList[_this->srId];
+            core::setInputSampleRate(_this->sampleRate);
+        }
+
+        ImGui::SameLine();
+        float refreshBtnWdith = menuWidth - ImGui::GetCursorPosX();
+        if (ImGui::Button(CONCAT("Refresh##_airspy_refr_", _this->name), ImVec2(refreshBtnWdith, 0))) {
+            _this->refresh();
+            _this->selectFirst();
+        }
+
+        if (_this->running) { style::endDisabled(); }
+
+        ImGui::BeginGroup();
+        ImGui::Columns(3, CONCAT("AirspyGainModeColumns##_", _this->name), false);
+        if (ImGui::RadioButton(CONCAT("Sensitive##_airspy_gm_", _this->name), _this->gainMode == 0)) {
+            _this->gainMode = 0;
+            if (_this->running) {
+                airspy_set_lna_agc(_this->openDev, 0);
+                airspy_set_mixer_agc(_this->openDev, 0);
+                airspy_set_sensitivity_gain(_this->openDev, _this->sensitiveGain);
+            }
+        }
+        ImGui::NextColumn();
+        if (ImGui::RadioButton(CONCAT("Linear##_airspy_gm_", _this->name), _this->gainMode == 1)) {
+            _this->gainMode = 1;
+            if (_this->running) {
+                airspy_set_lna_agc(_this->openDev, 0);
+                airspy_set_mixer_agc(_this->openDev, 0);
+                airspy_set_linearity_gain(_this->openDev, _this->linearGain);
+            }
+        }
+        ImGui::NextColumn();
+        if (ImGui::RadioButton(CONCAT("Free##_airspy_gm_", _this->name), _this->gainMode == 2)) {
+            _this->gainMode = 2;
+            if (_this->running) {
+                if (_this->lnaAgc) {
+                    airspy_set_lna_agc(_this->openDev, 1);
+                }
+                else {
+                    airspy_set_lna_agc(_this->openDev, 0);
+                    airspy_set_lna_gain(_this->openDev, _this->lnaGain);
+                }
+                if (_this->mixerAgc) {
+                    airspy_set_mixer_agc(_this->openDev, 1);
+                }
+                else {
+                    airspy_set_mixer_agc(_this->openDev, 0);
+                    airspy_set_mixer_gain(_this->openDev, _this->mixerGain);
+                }
+                airspy_set_vga_gain(_this->openDev, _this->vgaGain);
+            }
+        }
+        ImGui::Columns(1, CONCAT("EndAirspyGainModeColumns##_", _this->name), false);
+        ImGui::EndGroup();
+
+        // Gain menus
+
+        if (_this->gainMode == 0) {
+            ImGui::Text("Gain");
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(menuWidth - ImGui::GetCursorPosX());
+            if (ImGui::SliderInt(CONCAT("##_airspy_sens_gain_", _this->name), &_this->sensitiveGain, 0, 21)) {
+                if (_this->running) {
+                    airspy_set_sensitivity_gain(_this->openDev, _this->sensitiveGain);
+                }
+            }
+        }
+        else if (_this->gainMode == 1) {
+            ImGui::Text("Gain");
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(menuWidth - ImGui::GetCursorPosX());
+            if (ImGui::SliderInt(CONCAT("##_airspy_lin_gain_", _this->name), &_this->linearGain, 0, 21)) {
+                if (_this->running) {
+                    airspy_set_linearity_gain(_this->openDev, _this->linearGain);
+                }
+            }
+        }
+        else if (_this->gainMode == 2) {
+            if (_this->lnaAgc) { style::beginDisabled(); }
+            ImGui::Text("LNA Gain");
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(menuWidth - ImGui::GetCursorPosX());
+            if (ImGui::SliderInt(CONCAT("##_airspy_lna_gain_", _this->name), &_this->lnaGain, 0, 15)) {
+                if (_this->running) {
+                    airspy_set_lna_gain(_this->openDev, _this->lnaGain);
+                }
+            }
+            if (_this->lnaAgc) { style::endDisabled(); }
+
+            if (_this->mixerAgc) { style::beginDisabled(); }
+            ImGui::Text("Mixer Gain");
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(menuWidth - ImGui::GetCursorPosX());
+            if (ImGui::SliderInt(CONCAT("##_airspy_mix_gain_", _this->name), &_this->mixerGain, 0, 15)) {
+                if (_this->running) {
+                    airspy_set_mixer_gain(_this->openDev, _this->mixerGain);
+                }
+            }
+            if (_this->mixerAgc) { style::endDisabled(); }
+
+            ImGui::Text("VGA Gain");
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(menuWidth - ImGui::GetCursorPosX());
+            if (ImGui::SliderInt(CONCAT("##_airspy_vga_gain_", _this->name), &_this->vgaGain, 0, 15)) {
+                if (_this->running) {
+                    airspy_set_vga_gain(_this->openDev, _this->vgaGain);
+                }
+            }
+
+            // AGC Control
+            if (ImGui::Checkbox(CONCAT("LNA AGC##_airspy_", _this->name), &_this->lnaAgc)) {
+                if (_this->running) {
+                    if (_this->lnaAgc) {
+                        airspy_set_lna_agc(_this->openDev, 1);
+                    }
+                    else {
+                        airspy_set_lna_agc(_this->openDev, 0);
+                        airspy_set_lna_gain(_this->openDev, _this->lnaGain);
+                    }
+                }
+            }
+
+            if (ImGui::Checkbox(CONCAT("Mixer AGC##_airspy_", _this->name), &_this->mixerAgc)) {
+                if (_this->running) {
+                    if (_this->mixerAgc) {
+                        airspy_set_mixer_agc(_this->openDev, 1);
+                    }
+                    else {
+                        airspy_set_mixer_agc(_this->openDev, 0);
+                        airspy_set_mixer_gain(_this->openDev, _this->mixerGain);
+                    }
+                }
+            }
+        }
+
+        // Bias T
+
+        if (ImGui::Checkbox(CONCAT("Bias T##_airspy_", _this->name), &_this->biasT)) {
+            if (_this->running) {
+                airspy_set_rf_bias(_this->openDev, _this->biasT);
+            }
+        }
+
+        
+    }
+
+    static int callback(airspy_transfer_t* transfer) {
+        AirspySourceModule* _this = (AirspySourceModule*)transfer->ctx;
+        memcpy(_this->stream.writeBuf, transfer->samples, transfer->sample_count * sizeof(dsp::complex_t));
+        if (!_this->stream.swap(transfer->sample_count)) { return -1; }
+        return 0;
+    }
+
+    std::string name;
+    airspy_device* openDev;
+    bool enabled = true;
+    dsp::stream<dsp::complex_t> stream;
+    double sampleRate;
+    SourceManager::SourceHandler handler;
+    bool running = false;
+    double freq;
+    uint64_t selectedSerial = 0;
+    int devId = 0;
+    int srId = 0;
+
+    bool biasT = false;
+
+    int lnaGain = 0;
+    int vgaGain = 0;
+    int mixerGain = 0;
+    int linearGain = 0;
+    int sensitiveGain = 0;
+
+    int gainMode = 0;
+
+    bool lnaAgc = false;
+    bool mixerAgc = false;
+
+    std::vector<uint64_t> devList;
+    std::string devListTxt;
+    std::vector<uint32_t> sampleRateList;
+    std::string sampleRateListTxt;
+};
+
+MOD_EXPORT void _INIT_() {
+
+}
+
+MOD_EXPORT ModuleManager::Instance* _CREATE_INSTANCE_(std::string name) {
+    return new AirspySourceModule(name);
+}
+
+MOD_EXPORT void _DELETE_INSTANCE_(ModuleManager::Instance* instance) {
+    delete (AirspySourceModule*)instance;
+}
+
+MOD_EXPORT void _END_() {
+
+}

core/src/gui/main_window.cpp

@@ -462,7 +462,7 @@ void drawWindow() {
 
     gui::freqSelect.draw();
 
-    //ImGui::SameLine();
+    ImGui::SameLine();
 
     ImGui::SetCursorPosY(ImGui::GetCursorPosY() - 9);
     if (centerTuning) {

core/src/gui/style.cpp

@@ -25,7 +25,7 @@ namespace style {
         ImGui::GetStyle().ScrollbarRounding = 0.0f;
 
         baseFont = ImGui::GetIO().Fonts->AddFontFromFileTTF(((std::string)(resDir + "/fonts/Roboto-Medium.ttf")).c_str(), 16.0f);
-        bigFont = ImGui::GetIO().Fonts->AddFontFromFileTTF(((std::string)(resDir + "/fonts/Roboto-Medium.ttf")).c_str(), 42.0f);
+        bigFont = ImGui::GetIO().Fonts->AddFontFromFileTTF(((std::string)(resDir + "/fonts/Roboto-Medium.ttf")).c_str(), 45.0f);
         hugeFont = ImGui::GetIO().Fonts->AddFontFromFileTTF(((std::string)(resDir + "/fonts/Roboto-Medium.ttf")).c_str(), 128.0f);
 
         ImGui::StyleColorsDark();
@@ -52,7 +52,7 @@ namespace style {
         ImGui::GetStyle().ScrollbarRounding = 0.0f;
 
         baseFont = ImGui::GetIO().Fonts->AddFontFromFileTTF(((std::string)(resDir + "/fonts/Roboto-Medium.ttf")).c_str(), 16.0f);
-        bigFont = ImGui::GetIO().Fonts->AddFontFromFileTTF(((std::string)(resDir + "/fonts/Roboto-Medium.ttf")).c_str(), 42.0f);
+        bigFont = ImGui::GetIO().Fonts->AddFontFromFileTTF(((std::string)(resDir + "/fonts/Roboto-Medium.ttf")).c_str(), 45.0f);
         hugeFont = ImGui::GetIO().Fonts->AddFontFromFileTTF(((std::string)(resDir + "/fonts/Roboto-Medium.ttf")).c_str(), 128.0f);
 
         ImGui::StyleColorsDark();

core/src/gui/widgets/frequency_select.cpp

@@ -2,6 +2,11 @@
 #include <config.h>
 #include <gui/style.h>
 
+#ifndef IMGUI_DEFINE_MATH_OPERATORS
+#define IMGUI_DEFINE_MATH_OPERATORS
+#endif
+#include <imgui/imgui_internal.h>
+
 bool isInArea(ImVec2 val, ImVec2 min, ImVec2 max) {
     return val.x >= min.x && val.x < max.x && val.y >= min.y && val.y < max.y;
 }
@@ -18,17 +23,20 @@ void FrequencySelect::init() {
 }
 
 void FrequencySelect::onPosChange() {
-    int digitHeight = ImGui::CalcTextSize("0").y;
+    ImVec2 digitSz = ImGui::CalcTextSize("0");
+    ImVec2 commaSz = ImGui::CalcTextSize(".");
+    int digitHeight = digitSz.y;
+    int digitWidth = digitSz.x;
     int commaOffset = 0;
     for (int i = 0; i < 12; i++) {
-        digitTopMins[i] = ImVec2(widgetPos.x + (i * 22) + commaOffset, widgetPos.y);
-        digitBottomMins[i] = ImVec2(widgetPos.x + (i * 22) + commaOffset, widgetPos.y + (digitHeight / 2));
+        digitTopMins[i] = ImVec2(widgetPos.x + (i * digitWidth) + commaOffset, widgetPos.y);
+        digitBottomMins[i] = ImVec2(widgetPos.x + (i * digitWidth) + commaOffset, widgetPos.y + (digitHeight / 2));
 
-        digitTopMaxs[i] = ImVec2(widgetPos.x + (i * 22) + commaOffset + 22, widgetPos.y + (digitHeight / 2));
-        digitBottomMaxs[i] = ImVec2(widgetPos.x + (i * 22) + commaOffset + 22, widgetPos.y + digitHeight);
+        digitTopMaxs[i] = ImVec2(widgetPos.x + (i * digitWidth) + commaOffset + digitWidth, widgetPos.y + (digitHeight / 2));
+        digitBottomMaxs[i] = ImVec2(widgetPos.x + (i * digitWidth) + commaOffset + digitWidth, widgetPos.y + digitHeight);
 
         if ((i + 1) % 3 == 0 && i < 11) {
-            commaOffset += 12;
+            commaOffset += commaSz.x;
         }
     }
 }
@@ -90,18 +98,25 @@ void FrequencySelect::draw() {
     ImU32 disabledColor = ImGui::GetColorU32(ImGuiCol_Text, 0.3f);
     ImU32 textColor = ImGui::GetColorU32(ImGuiCol_Text);
 
+    ImVec2 digitSz = ImGui::CalcTextSize("0");
+    ImVec2 commaSz = ImGui::CalcTextSize(".");
+    int digitHeight = digitSz.y;
+    int digitWidth = digitSz.x;
     int commaOffset = 0;
     bool zeros = true;
+    
+    ImGui::ItemSize(ImRect(digitTopMins[0], ImVec2(digitBottomMaxs[11].x + 15, digitBottomMaxs[11].y)));
+
     for (int i = 0; i < 12; i++) {
         if (digits[i] != 0) {
             zeros = false;
         }
         sprintf(buf, "%d", digits[i]);
-        window->DrawList->AddText(ImVec2(widgetPos.x + (i * 22) + commaOffset, widgetPos.y), 
+        window->DrawList->AddText(ImVec2(widgetPos.x + (i * digitWidth) + commaOffset, widgetPos.y), 
                                 zeros ? disabledColor : textColor, buf);
         if ((i + 1) % 3 == 0 && i < 11) {
-            commaOffset += 12;
-            window->DrawList->AddText(ImVec2(widgetPos.x + (i * 22) + commaOffset + 10, widgetPos.y), 
+            commaOffset += commaSz.x;
+            window->DrawList->AddText(ImVec2(widgetPos.x + (i * digitWidth) + commaOffset + 11, widgetPos.y), 
                                     zeros ? disabledColor : textColor, ".");
         }
     }

core/src/gui/widgets/waterfall.cpp

@@ -347,6 +347,7 @@ namespace ImGui {
             cPos = widgetPos.x + 50 + ((center - lowerFreq) * horizScale);
             width = bPos - aPos;
             txtSz = ImGui::CalcTextSize(bandplan->bands[i].name.c_str());
+            float height = txtSz.y * 2.5f;
             if (bandplan::colorTable.find(bandplan->bands[i].type.c_str()) != bandplan::colorTable.end()) {
                 color = bandplan::colorTable[bandplan->bands[i].type].colorValue;
                 colorTrans = bandplan::colorTable[bandplan->bands[i].type].transColorValue;
@@ -362,19 +363,19 @@ namespace ImGui {
                 bPos = widgetPos.x + 51;
             }
             if (width >= 1.0) {
-                window->DrawList->AddRectFilled(ImVec2(roundf(aPos), widgetPos.y + fftHeight - 25), 
+                window->DrawList->AddRectFilled(ImVec2(roundf(aPos), widgetPos.y + fftHeight + 10 - height), 
                                         ImVec2(roundf(bPos), widgetPos.y + fftHeight + 10), colorTrans);
                 if (startVis) {
-                    window->DrawList->AddLine(ImVec2(roundf(aPos), widgetPos.y + fftHeight - 26), 
+                    window->DrawList->AddLine(ImVec2(roundf(aPos), widgetPos.y + fftHeight + 10 - height - 1), 
                                         ImVec2(roundf(aPos), widgetPos.y + fftHeight + 9), color);
                 }
                 if (endVis) {
-                    window->DrawList->AddLine(ImVec2(roundf(bPos), widgetPos.y + fftHeight - 26), 
+                    window->DrawList->AddLine(ImVec2(roundf(bPos), widgetPos.y + fftHeight + 10 - height - 1), 
                                         ImVec2(roundf(bPos), widgetPos.y + fftHeight + 9), color);
                 }
             }
             if (txtSz.x <= width) {
-                window->DrawList->AddText(ImVec2(cPos - (txtSz.x / 2.0), widgetPos.y + fftHeight - 17), 
+                window->DrawList->AddText(ImVec2(cPos - (txtSz.x / 2.0), widgetPos.y + fftHeight + 10 - (height / 2.0f) - (txtSz.y / 2.0f)), 
                                     IM_COL32(255, 255, 255, 255), bandplan->bands[i].name.c_str());
             }
         }