# wxPGMultiButton Class Reference
[wxPropertyGrid]

`#include </home/work/projects/wx/2.9/wx/interface/wx/propgrid/editors.h>`

Inheritance diagram for wxPGMultiButton:
[legend]

## Detailed Description

This class can be used to have multiple buttons in a property editor.

You will need to create a new property editor class, override CreateControls, and have it return wxPGMultiButton instance in wxPGWindowList::SetSecondary().

For instance, here we add three buttons to a TextCtrl editor:

        #include <wx/propgrid/editors.h>

        class wxSampleMultiButtonEditor : public wxPGTextCtrlEditor
        {
            wxDECLARE_DYNAMIC_CLASS(wxSampleMultiButtonEditor);

        public:
            wxSampleMultiButtonEditor() {}
            virtual ~wxSampleMultiButtonEditor() {}

            virtual wxString GetName() const { return "SampleMultiButtonEditor"; }

            virtual wxPGWindowList CreateControls( wxPropertyGrid* propGrid,
                                                   wxPGProperty* property,
                                                   const wxPoint& pos,
                                                   const wxSize& sz ) const;
            virtual bool OnEvent( wxPropertyGrid* propGrid,
                                  wxPGProperty* property,
                                  wxWindow* ctrl,
                                  wxEvent& event ) const;
        };

        wxIMPLEMENT_DYNAMIC_CLASS(wxSampleMultiButtonEditor, wxPGTextCtrlEditor);

        wxPGWindowList wxSampleMultiButtonEditor::CreateControls( wxPropertyGrid* propGrid,
                                                                  wxPGProperty* property,
                                                                  const wxPoint& pos,
                                                                  const wxSize& sz ) const
        {
            // Create and populate buttons-subwindow
            wxPGMultiButton* buttons = new wxPGMultiButton( propGrid, sz );

            // Add two regular buttons
            buttons->Add( "..." );
            buttons->Add( "A" );
            // Add a bitmap button
            buttons->Add( wxArtProvider::GetBitmap(wxART_FOLDER) );

            // Create the 'primary' editor control (textctrl in this case)
            wxPGWindowList wndList = wxPGTextCtrlEditor::CreateControls
                                     ( propGrid, property, pos,
                                       buttons->GetPrimarySize() );

            // Finally, move buttons-subwindow to correct position and make sure
            // returned wxPGWindowList contains our custom button list.
            buttons->Finalize(propGrid, pos);

            wndList.SetSecondary( buttons );
            return wndList;
        }

        bool wxSampleMultiButtonEditor::OnEvent( wxPropertyGrid* propGrid,
                                                 wxPGProperty* property,
                                                 wxWindow* ctrl,
                                                 wxEvent& event ) const
        {
            if ( event.GetEventType() == wxEVT_COMMAND_BUTTON_CLICKED )
            {
                wxPGMultiButton* buttons = (wxPGMultiButton*) propGrid->GetEditorControlSecondary();

                if ( event.GetId() == buttons->GetButtonId(0) )
                {
                    // Do something when the first button is pressed
                    // Return true if the action modified the value in editor.
                    ...
                }
                if ( event.GetId() == buttons->GetButtonId(1) )
                {
                    // Do something when the second button is pressed
                    ...
                }
                if ( event.GetId() == buttons->GetButtonId(2) )
                {
                    // Do something when the third button is pressed
                    ...
                }
            }
            return wxPGTextCtrlEditor::OnEvent(propGrid, property, ctrl, event);
        }

Further to use this editor, code like this can be used:

            // Register editor class - needs only to be called once
            wxPGEditor* multiButtonEditor = new wxSampleMultiButtonEditor();
            wxPropertyGrid::RegisterEditorClass( multiButtonEditor );

            // Insert the property that will have multiple buttons
            propGrid->Append( new wxLongStringProperty("MultipleButtons", wxPG_LABEL) );

            // Change property to use editor created in the previous code segment
            propGrid->SetPropertyEditor( "MultipleButtons", multiButtonEditor );

##

Library: wxPropertyGrid
Category: wxPropertyGrid

## Public Member Functions

| wxPGMultiButton (wxPropertyGrid *pg, const wxSize &sz)
| Constructor.
virtual | ~wxPGMultiButton ()
| Destructor.
void | Add (const wxString &label, int id=-2)
| Adds new button, with given label.
void | Add (const wxBitmap &bitmap, int id=-2)
| Adds new bitmap button.
void | Finalize (wxPropertyGrid *propGrid, const wxPoint &pos)
| Call this in CreateControls() of your custom editor class after all buttons have been added.
wxWindow * | GetButton (unsigned int i)
| Returns pointer to one of the buttons.
int | GetButtonId (unsigned int i) const
| Returns Id of one of the buttons.
unsigned int | GetCount ()
| Returns number of buttons.
wxSize | GetPrimarySize () const
| Returns size of primary editor control, as appropriately reduced by number of buttons present.

List of all members.

## Constructor & Destructor Documentation

wxPGMultiButton::wxPGMultiButton | ( | wxPropertyGrid * | pg,
|  | const wxSize & | sz |
| ) |  |  |

Constructor.

virtual wxPGMultiButton::~wxPGMultiButton | ( |  | ) | `[inline, virtual]`

Destructor.

## Member Function Documentation

void wxPGMultiButton::Add | ( | const wxString & | label,
|  | int | id = `-2` |
| ) |  |  |

Adds new button, with given label.

void wxPGMultiButton::Add | ( | const wxBitmap & | bitmap,
|  | int | id = `-2` |
| ) |  |  |

Adds new bitmap button.

void wxPGMultiButton::Finalize | ( | wxPropertyGrid * | propGrid,
|  | const wxPoint & | pos |
| ) |  |  |

Call this in CreateControls() of your custom editor class after all buttons have been added.

Parameters:

  | propGrid | wxPropertyGrid given in CreateControls().
  | pos | wxPoint given in CreateControls().

wxWindow* wxPGMultiButton::GetButton | ( | unsigned int | i | ) |

Returns pointer to one of the buttons.

int wxPGMultiButton::GetButtonId | ( | unsigned int | i | ) | const

Returns Id of one of the buttons.

This is utility function to be used in event handlers.

unsigned int wxPGMultiButton::GetCount | ( |  | ) |

Returns number of buttons.

wxSize wxPGMultiButton::GetPrimarySize | ( |  | ) | const

Returns size of primary editor control, as appropriately reduced by number of buttons present.

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