+// 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 )
+ {
+ if ( event.GetKeyCode() == WXK_RETURN )
+ {
+ wxString value = GetValue();
+
+ if ( m_cb->GetCount() == 0 )
+ {
+ // make Enter generate "selected" event if there is only one item
+ // in the combobox - without it, it's impossible to select it at
+ // all!
+ wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() );
+ event.SetInt( 0 );
+ event.SetString( value );
+ event.SetEventObject( m_cb );
+ m_cb->GetEventHandler()->ProcessEvent( event );
+ }
+ else
+ {
+ // add the item to the list if it's not there yet
+ if ( m_cb->FindString(value) == wxNOT_FOUND )
+ {
+ m_cb->Append(value);
+ m_cb->SetStringSelection(value);
+
+ // and generate the selected event for it
+ wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() );
+ event.SetInt( m_cb->GetCount() - 1 );
+ event.SetString( value );
+ event.SetEventObject( m_cb );
+ m_cb->GetEventHandler()->ProcessEvent( event );
+ }
+
+ // This will invoke the dialog default action, such
+ // as the clicking the default button.
+
+ 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 ;
+ }
+ }
+
+ return;
+ }
+ }
+
+ event.Skip();
+ }
+
+private:
+ wxComboBox *m_cb;
+
+ DECLARE_EVENT_TABLE()
+};
+
+BEGIN_EVENT_TABLE(wxComboBoxText, wxTextCtrl)
+ EVT_CHAR( wxComboBoxText::OnChar)
+END_EVENT_TABLE()
+
+class wxComboBoxChoice : public wxChoice
+{
+public:
+ wxComboBoxChoice(wxComboBox *cb, int style)
+ : wxChoice( cb , 1 )
+ {
+ 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);
+ }
+ 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;
+
+ 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 );
+}
projects / wxWidgets.git / blobdiff