ToolBar.cpp

#include <wx/app.h>
#include <wx/artprov.h>
#include <wx/choice.h>
#include <wx/frame.h>
#include <wx/listbox.h>
#include <wx/menu.h>
#include <wx/toolbar.h>
#include <map>

using namespace std;

namespace ToolBarExample {
  class Frame : public wxFrame {
  public:
    Frame() : wxFrame {nullptr, wxID_ANY, "ToolBar example"} {
      SetClientSize(820, 500);
      
      // On Windows the default size icon of toolbar is 16x16, on macOS is 32x32 and on gtk is 24x24...
      if (wxPlatformInfo::Get().GetOperatingSystemFamilyName() == "Windows") toolBar->SetToolBitmapSize({16, 16});
      else if (wxPlatformInfo::Get().GetOperatingSystemFamilyName() == "Macintosh") toolBar->SetToolBitmapSize({32, 32});
      else toolBar->SetToolBitmapSize({24, 24});
      toolBar->AddTool(wxID_NEW, "&New", wxArtProvider::GetBitmap(wxART_NEW, wxART_TOOLBAR));
      toolBar->AddTool(wxID_OPEN, "&Open...", wxArtProvider::GetBitmap(wxART_FILE_OPEN, wxART_TOOLBAR));
      toolBar->AddTool(wxID_SAVE, "&Save", wxArtProvider::GetBitmap(wxART_FILE_SAVE, wxART_TOOLBAR));
      toolBar->AddTool(wxID_PRINT, "&Print...", wxArtProvider::GetBitmap(wxART_PRINT, wxART_TOOLBAR));
      toolBar->AddSeparator();
      toolBar->AddTool(wxID_CUT, "Cu&t", wxArtProvider::GetBitmap(wxART_CUT, wxART_TOOLBAR));
      toolBar->AddTool(wxID_COPY, "&Copy", wxArtProvider::GetBitmap(wxART_COPY, wxART_TOOLBAR));
      toolBar->AddTool(wxID_PASTE, "&Paste", wxArtProvider::GetBitmap(wxART_PASTE, wxART_TOOLBAR));
      toolBar->AddSeparator();
      toolBar->AddControl(choice, "Items");
      toolBar->AddStretchableSpace();
      /// Does not works on macOS : No DropDown menu supported !
      toolBar->AddTool(wxID_HELP, "&Help", wxArtProvider::GetBitmap(wxART_HELP, wxART_TOOLBAR), wxEmptyString, wxITEM_DROPDOWN);
      toolBar->SetDropdownMenu(wxID_HELP, menuHelp);
      
      SetToolBar(toolBar);
      toolBar->Realize();
      toolBar->Bind(wxEVT_MENU, [&](wxCommandEvent& event) {
        static auto names = map<int, wxString> {{wxID_NEW, "New"}, {wxID_OPEN, "Open..."}, {wxID_SAVE, "Save"}, {wxID_EXIT, "Quit"}, {wxID_CUT, "Cut"}, {wxID_COPY, "Copy"}, {wxID_PASTE, "Paste"}, {wxID_PRINT, "Print..."}, {wxID_HELP, "Help"}, {wxID_HELP_CONTEXT, "Help context"}, {wxID_HELP_INDEX, "Help index"}, {wxID_HELP_SEARCH, "Help search"}, {wxID_ABOUT, "About..."}, {wxID_ANY, "Any"}};
        listBox1->Append(wxString::Format("%s clicked", names.find(event.GetId()) != names.end() ? names[event.GetId()] : "Unknown"));
        listBox1->Select(listBox1->GetCount() - 1);
        if (event.GetId() == wxID_EXIT) Close();
      });
      
      toolBar->Bind(wxEVT_TOOL_DROPDOWN, [&](wxCommandEvent& event) {
        listBox1->Append(wxString::Format("DropDown clicked"));
      });

      auto items = vector<wxString> {"item 1", "item 2", "item 3", "item 4", "item 5", "item 6", "item 7", "item 8", "item 9", "item 10"};
      choice->Append(static_cast<int>(items.size()), items.data());
      choice->SetSelection(0);
      choice->Bind(wxEVT_CHOICE, [&](wxCommandEvent& e) {
        listBox1->Append(wxString::Format("Choose item : %s", choice->GetStringSelection()));
        listBox1->Select(listBox1->GetCount() - 1);
      });
      
      menuHelp->Append(wxID_HELP_CONTEXT, "Context");
      menuHelp->Append(wxID_HELP_INDEX, "Index");
      menuHelp->Append(wxID_HELP_SEARCH, "Search");
      menuHelp->AppendSeparator();
      menuHelp->Append(wxID_ABOUT, "About");
    }
    
  private:
    wxListBox* listBox1 = new wxListBox {this, wxID_ANY};
    wxToolBar* toolBar = new wxToolBar {this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTB_HORIZONTAL};
    wxChoice* choice = new wxChoice {toolBar, wxID_ANY};
    wxMenu* menuHelp = new wxMenu;
  };
  
  class Application : public wxApp {
    bool OnInit() override {return (new Frame)->Show();}
  };
}

wxIMPLEMENT_APP(ToolBarExample::Application);