UserDialogShowWindowModal.cpp

#include <wx/app.h>
#include <wx/button.h>
#include <wx/dialog.h>
#include <wx/frame.h>
#include <wx/panel.h>
#include <wx/stattext.h>
#include <wx/textctrl.h>

namespace UserDialogShowWindowModalExample {
  class UserInputDialog : public wxDialog {
  public:
    UserInputDialog(wxWindow* parent) : wxDialog {parent, wxID_ANY, "Input Dialog"} {
      SetClientSize(200, 80);
      CenterOnScreen();
      buttonOk->SetDefault();
    }
    
    wxString GetInputText() const {return text->GetValue();}
    virtual void SetInputText(const wxString& inputString) {text->SetValue(inputString);}

  private:
    wxPanel* panel = new wxPanel {this};
    wxTextCtrl* text = new wxTextCtrl {panel, wxID_ANY, wxEmptyString, {10, 10}, {180, 25}};
    wxButton* buttonCancel = new wxButton {panel, wxID_CANCEL, "Cancel", {10, 50}, {85, -1}};
    wxButton* buttonOk = new wxButton {panel, wxID_OK, "OK", {105, 50}, {85, -1}};
  };

  class Frame : public wxFrame {
  public:
    Frame() : wxFrame(nullptr, wxID_ANY, "User dialog example", wxDefaultPosition, {800, 450}) {
      Center();
      
      buttonDialog->Bind(wxEVT_BUTTON, [&](wxCommandEvent& e) {
        dialog->Bind(wxEVT_WINDOW_MODAL_DIALOG_CLOSED, [&](wxWindowModalDialogEvent& event) {
          if (event.GetReturnCode() == wxID_OK)
            inputText->SetLabel(dialog->GetInputText());
        });
        dialog->SetInputText(inputText->GetLabel());
        dialog->ShowWindowModal();
      });
    }
  private:
    UserInputDialog* dialog = new UserInputDialog {this};
    wxPanel* panel = new wxPanel {this};
    wxButton* buttonDialog = new wxButton {panel, wxID_ANY, "Dialog", {10, 10}};
    wxStaticText* inputText = new wxStaticText {panel, wxID_ANY, "User input text", {10, 50}};
  };

  class Application : public wxApp {
    bool OnInit() override {return (new Frame())->Show();}
  };
}

wxIMPLEMENT_APP(UserDialogShowWindowModalExample::Application);