+// composite combobox implementation by Dan "Bud" Keith bud@otsys.com
+
+
+static int nextPopUpMenuId = 1000 ;
+MenuHandle NewUniqueMenu()
+{
+ MenuHandle handle = NewMenu( nextPopUpMenuId , "\pMenu" ) ;
+ nextPopUpMenuId++ ;
+ return handle ;
+}
+
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+// the margin between the text control and the choice
+#if TARGET_API_MAC_OSX
+// margin should be bigger on OS X due to blue highlight
+// around text control.
+static const wxCoord MARGIN = 4;
+// this is the border a focus rect on OSX is needing
+static const int TEXTFOCUSBORDER = 3 ;
+#else
+static const wxCoord MARGIN = 2;
+static const int TEXTFOCUSBORDER = 0 ;
+#endif
+static const int POPUPHEIGHT = 23;
+
+
+// ----------------------------------------------------------------------------
+// wxComboBoxText: text control forwards events to combobox
+// ----------------------------------------------------------------------------
+
+class wxComboBoxText : public wxTextCtrl
+{
+public:
+ wxComboBoxText( wxComboBox * cb )
+ : wxTextCtrl( cb , 1 )
+ {
+ m_cb = cb;
+ }
+
+protected:
+ void OnChar( wxKeyEvent& event )
+ {
+ // Allows processing the tab key to go to the next control
+ if (event.GetKeyCode() == WXK_TAB)
+ {
+ wxNavigationKeyEvent NavEvent;
+ NavEvent.SetEventObject(this);
+ NavEvent.SetDirection(true);
+ NavEvent.SetWindowChange(false);
+
+ // Get the parent of the combo and have it process the navigation?
+ if (m_cb->GetParent()->GetEventHandler()->ProcessEvent(NavEvent))
+ return;
+ }
+
+ // send the event to the combobox class in case the user has bound EVT_CHAR
+ wxKeyEvent kevt(event);
+ kevt.SetEventObject(m_cb);
+ if (m_cb->GetEventHandler()->ProcessEvent(kevt))
+ // If the event was handled and not skipped then we're done
+ return;
+
+ if ( event.GetKeyCode() == WXK_RETURN )
+ {
+ wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_cb->GetId());
+ event.SetString( GetValue() );
+ event.SetInt( m_cb->GetSelection() );
+ event.SetEventObject( m_cb );
+
+ // This will invoke the dialog default action, such
+ // as the clicking the default button.
+
+ if (!m_cb->GetEventHandler()->ProcessEvent( event ))
+ {
+ wxWindow *parent = GetParent();
+ while( parent && !parent->IsTopLevel() && parent->GetDefaultItem() == NULL ) {
+ parent = parent->GetParent() ;
+ }
+ if ( parent && parent->GetDefaultItem() )
+ {
+ wxButton *def = wxDynamicCast(parent->GetDefaultItem(),
+ wxButton);
+ if ( def && def->IsEnabled() )
+ {
+ wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, def->GetId() );
+ event.SetEventObject(def);
+ def->Command(event);
+ }
+ }
+
+ return;
+ }
+ }
+
+ event.Skip();
+ }
+
+ void OnKeyUp( wxKeyEvent& event )
+ {
+ event.SetEventObject(m_cb);
+ event.SetId(m_cb->GetId());
+ if (! m_cb->GetEventHandler()->ProcessEvent(event))
+ event.Skip();
+ }
+
+ void OnKeyDown( wxKeyEvent& event )
+ {
+ event.SetEventObject(m_cb);
+ event.SetId(m_cb->GetId());
+ if (! m_cb->GetEventHandler()->ProcessEvent(event))
+ event.Skip();
+ }
+
+ void OnText( wxCommandEvent& event )
+ {
+ event.SetEventObject(m_cb);
+ event.SetId(m_cb->GetId());
+ if (! m_cb->GetEventHandler()->ProcessEvent(event))
+ event.Skip();
+ }
+
+private:
+ wxComboBox *m_cb;
+
+ DECLARE_EVENT_TABLE()
+};
+
+BEGIN_EVENT_TABLE(wxComboBoxText, wxTextCtrl)
+ EVT_KEY_DOWN( wxComboBoxText::OnKeyDown)
+ EVT_CHAR( wxComboBoxText::OnChar)
+ EVT_KEY_UP( wxComboBoxText::OnKeyUp)
+ EVT_TEXT( -1, wxComboBoxText::OnText)
+END_EVENT_TABLE()
+
+class wxComboBoxChoice : public wxChoice
+{
+public:
+ wxComboBoxChoice(wxComboBox *cb, int style)
+ : wxChoice( cb , 1 , wxDefaultPosition , wxDefaultSize , 0 , NULL , style & (wxCB_SORT) )
+ {
+ m_cb = cb;
+ }
+ int GetPopupWidth() const
+ {
+ switch ( GetWindowVariant() )
+ {
+ case wxWINDOW_VARIANT_NORMAL :
+ case wxWINDOW_VARIANT_LARGE :
+ return 24 ;
+ default :
+ return 21 ;
+ }
+ }
+
+protected:
+ void OnChoice( wxCommandEvent& e )
+ {
+ wxString s = e.GetString();
+
+ m_cb->DelegateChoice( s );
+ wxCommandEvent event2(wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() );
+ event2.SetInt(m_cb->GetSelection());
+ event2.SetEventObject(m_cb);
+ event2.SetString(m_cb->GetStringSelection());
+ m_cb->ProcessCommand(event2);
+
+ // For consistency with MSW and GTK, also send a text updated event
+ // After all, the text is updated when a selection is made
+ wxCommandEvent TextEvent( wxEVT_COMMAND_TEXT_UPDATED, m_cb->GetId() );
+ TextEvent.SetString( m_cb->GetStringSelection() );
+ TextEvent.SetEventObject( m_cb );
+ m_cb->ProcessCommand( TextEvent );
+ }
+ virtual wxSize DoGetBestSize() const
+ {
+ wxSize sz = wxChoice::DoGetBestSize() ;
+ if (! m_cb->HasFlag(wxCB_READONLY) )
+ sz.x = GetPopupWidth() ;
+ return sz ;
+ }
+
+private:
+ wxComboBox *m_cb;
+
+ DECLARE_EVENT_TABLE()
+};
+
+BEGIN_EVENT_TABLE(wxComboBoxChoice, wxChoice)
+ EVT_CHOICE(-1, wxComboBoxChoice::OnChoice)
+END_EVENT_TABLE()
+
+wxComboBox::~wxComboBox()
+{
+ // delete client objects
+ FreeData();
+
+ // delete the controls now, don't leave them alive even though they would
+ // still be eventually deleted by our parent - but it will be too late, the
+ // user code expects them to be gone now
+ if (m_text != NULL) {
+ delete m_text;
+ m_text = NULL;
+ }
+ if (m_choice != NULL) {
+ delete m_choice;
+ m_choice = NULL;
+ }
+}
+
+
+// ----------------------------------------------------------------------------
+// geometry
+// ----------------------------------------------------------------------------
+
+wxSize wxComboBox::DoGetBestSize() const
+{
+ if (!m_choice && !m_text)
+ return GetSize();
+ wxSize size = m_choice->GetBestSize();
+
+ if ( m_text != NULL )
+ {
+ wxSize sizeText = m_text->GetBestSize();
+ if (sizeText.y > size.y)
+ size.y = sizeText.y;
+ size.x = m_choice->GetPopupWidth() + sizeText.x + MARGIN;
+ size.x += TEXTFOCUSBORDER ;
+ size.y += 2 * TEXTFOCUSBORDER ;
+ }
+ else
+ {
+ // clipping is too tight
+ size.y += 1 ;
+ }
+ return size;
+}
+
+void wxComboBox::DoMoveWindow(int x, int y, int width, int height)
+{
+ wxControl::DoMoveWindow(x, y, width , height );
+
+ if ( m_text == NULL )
+ {
+ // we might not be fully constructed yet, therefore watch out...
+ if ( m_choice )
+ m_choice->SetSize(0, 0 , width, -1);
+ }
+ else
+ {
+ wxCoord wText = width - m_choice->GetPopupWidth() - MARGIN;
+ m_text->SetSize(TEXTFOCUSBORDER, TEXTFOCUSBORDER, wText, -1 );
+ // put it at an inset of 1 to have outer area shadows drawn as well
+ m_choice->SetSize(TEXTFOCUSBORDER + wText + MARGIN - 1 , TEXTFOCUSBORDER, m_choice->GetPopupWidth() , -1);
+ }
+}
+
+
+
+// ----------------------------------------------------------------------------
+// operations forwarded to the subcontrols
+// ----------------------------------------------------------------------------
+
+bool wxComboBox::Enable(bool enable)
+{
+ if ( !wxControl::Enable(enable) )
+ return false;
+
+ if (m_text)
+ m_text->Enable(enable);
+
+ return true;
+}
+
+bool wxComboBox::Show(bool show)
+{
+ if ( !wxControl::Show(show) )
+ return false;
+
+ return true;
+}
+
+void wxComboBox::SetFocus()
+{
+ if ( m_text != NULL) {
+ m_text->SetFocus();
+ }
+}
+
+
+void wxComboBox::DelegateTextChanged( const wxString& value )
+{
+ SetStringSelection( value );
+}
+
+
+void wxComboBox::DelegateChoice( const wxString& value )
+{
+ SetStringSelection( value );
+}
+
+
+bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
+ const wxString& value,
+ const wxPoint& pos,
+ const wxSize& size,
+ const wxArrayString& choices,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
+{
+ wxCArrayString chs( choices );
+
+ return Create( parent, id, value, pos, size, chs.GetCount(),
+ chs.GetStrings(), style, validator, name );
+}
projects / wxWidgets.git / blobdiff