1 files changed, 119 insertions, 0 deletions
diff --git a/gui/wxmain.hpp b/gui/wxmain.hpp
new file mode 100644
index 0000000..97baae3
--- /dev/null
+++ b/gui/wxmain.hpp
@@ -0,0 +1,119 @@
+#ifndef WXMAIN_HPP_
+#define WXMAIN_HPP_
+
+#include "stmdsp.hpp"
+
+#include <future>
+#include <thread>
+#include <wx/button.h>
+#include <wx/combobox.h>
+#include <wx/dcclient.h>
+#include <wx/frame.h>
+#include <wx/stattext.h>
+#include <wx/timer.h>
+
+class MainFrame : public wxFrame
+{
+    enum Id {
+        Welcome = 1,
+        Single,
+        SelectDevice,
+        RenderTimer
+    };
+
+    bool m_is_rendering = false;
+    wxTimer *m_render_timer = nullptr;
+    wxComboBox *m_device_combo = nullptr;
+
+    const wxRect m_clipping_region = {20, 100, 600, 360};
+
+    stmdsp::device *m_device = nullptr;
+    std::future<std::vector<stmdsp::adcsample_t>> m_device_samples_future;
+    std::vector<stmdsp::adcsample_t> m_device_samples;
+
+public:
+    MainFrame() : wxFrame(nullptr, -1, "Hello world", wxPoint(50, 50), wxSize(640, 480))
+    {
+        new wxStaticText(this, Id::Welcome, "Welcome to the GUI.", wxPoint(20, 20));
+        new wxButton(this, Id::Single, "Single", wxPoint(20, 60));
+        m_device_combo = new wxComboBox(this, Id::SelectDevice, "", wxPoint(470, 20), wxSize(150, 30));
+        m_device_combo->SetEditable(false);
+        stmdsp::scanner scanner;
+        for (auto& dev : scanner.scan())
+            m_device_combo->Append(dev);
+        if (m_device_combo->GetCount() > 0)
+            m_device_combo->SetSelection(0);
+
+        m_render_timer = new wxTimer(this, Id::RenderTimer);
+
+        Bind(wxEVT_BUTTON, &MainFrame::onSinglePressed, this, Id::Single);
+        Bind(wxEVT_PAINT, &MainFrame::onPaint, this, wxID_ANY);
+        Bind(wxEVT_TIMER, &MainFrame::onRenderTimer, this, Id::RenderTimer);
+    }
+
+    void onPaint([[maybe_unused]] wxPaintEvent& pe) {
+        auto *dc = new wxClientDC(this);
+        dc->SetClippingRegion(m_clipping_region);
+
+        dc->SetBrush(*wxBLACK_BRUSH);
+        dc->SetPen(*wxBLACK_PEN);
+        dc->DrawRectangle(m_clipping_region);
+
+        if (m_device_samples.size() > 0) {
+            dc->SetPen(*wxRED_PEN);
+            auto points = new wxPoint[m_device_samples.size()];
+            const float spacing = static_cast<float>(m_clipping_region.GetWidth()) / m_device_samples.size();
+            float x = 0;
+            for (auto ptr = points; auto sample : m_device_samples) {
+                *ptr++ = wxPoint {
+                    static_cast<int>(x),
+                    m_clipping_region.GetHeight() - sample * m_clipping_region.GetHeight() / 4096
+                };
+                x += spacing;
+            }
+            dc->DrawLines(m_device_samples.size(), points, m_clipping_region.GetX(), m_clipping_region.GetY());
+            delete[] points;
+        }
+    }
+
+    void doSingle() {
+        m_device_samples_future = std::async(std::launch::async,
+                                             [this]() { return m_device->sample(250); });
+    }
+
+    void onSinglePressed(wxCommandEvent& ce) {
+        auto button = dynamic_cast<wxButton *>(ce.GetEventObject());
+
+        if (!m_render_timer->IsRunning()) {
+            m_device = new stmdsp::device(m_device_combo->GetStringSelection().ToStdString());
+            if (m_device->connected()) {
+                doSingle();
+                m_render_timer->Start(100);
+                button->SetLabel("Stop");
+            } else {
+                delete m_device;
+                m_device = nullptr;
+            }
+        } else {
+            m_render_timer->Stop();
+            button->SetLabel("Single");
+
+            delete m_device;
+            m_device = nullptr;
+        }
+    }
+
+    void onRenderTimer([[maybe_unused]] wxTimerEvent& te) {
+        updateDrawing();
+    }
+
+    void updateDrawing() {
+        if (m_device_samples = m_device_samples_future.get(); m_device_samples.size() > 0)
+            this->RefreshRect(m_clipping_region);
+
+        doSingle();
+    }
+};
+
+#endif // WXMAIN_HPP_
+