1 files changed, 89 insertions, 0 deletions
diff --git a/gui/wxsiggen.cpp b/gui/wxsiggen.cpp
new file mode 100644
index 0000000..f6abce8
--- /dev/null
+++ b/gui/wxsiggen.cpp
@@ -0,0 +1,89 @@
+/**
+ * @file wxsiggen.cpp
+ * @brief Dialog prompt for providing signal generator input.
+ *
+ * Copyright (C) 2021 Clyne Sullivan
+ *
+ * Distributed under the GNU GPL v3 or later. You should have received a copy of
+ * the GNU General Public License along with this program.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "wxsiggen.hpp"
+
+#include <wx/filedlg.h>
+#include <wx/radiobox.h>
+
+static const std::array<wxString, 3> Sources {{
+    "List",
+    "Formula",
+    "WAV audio"
+}};
+static const std::array<wxString, 3> Instructions {{
+    "Enter a list of numbers:",
+    "Enter a formula. f(x) = ",
+    wxEmptyString
+}};
+
+SiggenDialog::SiggenDialog(wxWindow *parent) :
+    wxDialog(parent, wxID_ANY, "stmdspgui signal generator", wxDefaultPosition, wxSize(300, 200))
+{
+    m_instruction = new wxStaticText(this, wxID_ANY, wxEmptyString, wxPoint(10, 70));
+    m_source_list = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxPoint(10, 100), wxSize(280, 30));
+    m_source_math = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxPoint(10, 100), wxSize(280, 30));
+    m_source_file = new wxButton(this, 42, "Choose file...", wxPoint(10, 75), wxSize(280, 50));
+
+    auto radio = new wxRadioBox(this, wxID_ANY, "Source", wxPoint(10, 10), wxSize(280, 50),
+                                Sources.size(), Sources.data());
+    auto save = new wxButton(this, 43, "Save", wxPoint(200, 150));
+
+    m_instruction->SetLabel(Instructions[0]);
+    m_source_math->Hide();
+    m_source_file->Hide();
+
+    Bind(wxEVT_RADIOBOX, &SiggenDialog::onSourceChange, this, wxID_ANY, wxID_ANY, radio);
+    Bind(wxEVT_BUTTON, &SiggenDialog::onSourceFile, this, 42, 42, m_source_file);
+    Bind(wxEVT_BUTTON, &SiggenDialog::onSave, this, 43, 43, save);
+}
+
+SiggenDialog::~SiggenDialog()
+{
+    Unbind(wxEVT_BUTTON, &SiggenDialog::onSave, this, 43, 43);
+    Unbind(wxEVT_BUTTON, &SiggenDialog::onSourceFile, this, 42, 42);
+    Unbind(wxEVT_RADIOBOX, &SiggenDialog::onSourceChange, this, wxID_ANY, wxID_ANY);
+}
+
+void SiggenDialog::onSourceFile(wxCommandEvent&)
+{
+    wxFileDialog dialog (this, "Open audio file", "", "",
+                         "Audio file (*.wav)|*.wav",
+                         wxFD_OPEN | wxFD_FILE_MUST_EXIST);
+    if (dialog.ShowModal() != wxID_CANCEL)
+        m_result = dialog.GetPath();
+}
+
+void SiggenDialog::onSave(wxCommandEvent&)
+{
+    if (m_source_list->IsShown())
+        m_result = m_source_list->GetValue();
+    else if (m_source_math->IsShown())
+        m_result = m_source_math->GetValue();
+
+    EndModal(!m_result.IsEmpty() ? wxID_OK : wxID_CANCEL);
+}
+
+void SiggenDialog::onSourceChange(wxCommandEvent& ce)
+{
+    auto radio = dynamic_cast<wxRadioBox*>(ce.GetEventObject());
+    if (radio == nullptr)
+        return;
+
+    m_result.Clear();
+    if (int selection = radio->GetSelection(); selection >= 0 && selection < Sources.size()) {
+        m_instruction->SetLabel(Instructions[selection]);
+        m_source_list->Show(selection == 0);
+        m_source_math->Show(selection == 1);
+        m_source_file->Show(selection == 2);
+    }
+}
+