///////////////////////////////////////////////////////////////////////////// // Program: wxWidgets Widgets Sample // Name: combobox.cpp // Purpose: Part of the widgets sample showing wxComboBox // Author: Vadim Zeitlin // Created: 27.03.01 // Copyright: (c) 2001 Vadim Zeitlin // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- // for compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif #if wxUSE_COMBOBOX // for all others, include the necessary headers #ifndef WX_PRECOMP #include "wx/log.h" #include "wx/bitmap.h" #include "wx/button.h" #include "wx/checkbox.h" #include "wx/combobox.h" #include "wx/radiobox.h" #include "wx/statbox.h" #include "wx/textctrl.h" #endif #include "wx/sizer.h" #include "itemcontainer.h" #include "widgets.h" #include "icons/combobox.xpm" // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- // control ids enum { ComboPage_Reset = wxID_HIGHEST, ComboPage_Popup, ComboPage_Dismiss, ComboPage_SetCurrent, ComboPage_CurText, ComboPage_InsertionPointText, ComboPage_Insert, ComboPage_InsertText, ComboPage_Add, ComboPage_AddText, ComboPage_SetFirst, ComboPage_SetFirstText, ComboPage_AddSeveral, ComboPage_AddMany, ComboPage_Clear, ComboPage_Change, ComboPage_ChangeText, ComboPage_Delete, ComboPage_DeleteText, ComboPage_DeleteSel, ComboPage_SetValue, ComboPage_SetValueText, ComboPage_Combo, ComboPage_ContainerTests }; // kinds of comboboxes enum { ComboKind_Default, ComboKind_Simple, ComboKind_DropDown }; // ---------------------------------------------------------------------------- // ComboboxWidgetsPage // ---------------------------------------------------------------------------- class ComboboxWidgetsPage : public ItemContainerWidgetsPage { public: ComboboxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist); virtual wxControl *GetWidget() const { return m_combobox; } virtual wxTextEntryBase *GetTextEntry() const { return m_combobox; } virtual wxItemContainer* GetContainer() const { return m_combobox; } virtual void RecreateWidget() { CreateCombo(); } // lazy creation of the content virtual void CreateContent(); protected: // event handlers void OnButtonReset(wxCommandEvent& event); void OnButtonPopup(wxCommandEvent&) { m_combobox->Popup(); } void OnButtonDismiss(wxCommandEvent&) { m_combobox->Dismiss(); } void OnButtonChange(wxCommandEvent& event); void OnButtonDelete(wxCommandEvent& event); void OnButtonDeleteSel(wxCommandEvent& event); void OnButtonClear(wxCommandEvent& event); void OnButtonInsert(wxCommandEvent &event); void OnButtonAdd(wxCommandEvent& event); void OnButtonSetFirst(wxCommandEvent& event); void OnButtonAddSeveral(wxCommandEvent& event); void OnButtonAddMany(wxCommandEvent& event); void OnButtonSetValue(wxCommandEvent& event); void OnButtonSetCurrent(wxCommandEvent& event); void OnDropdown(wxCommandEvent& event); void OnCloseup(wxCommandEvent& event); void OnComboBox(wxCommandEvent& event); void OnComboText(wxCommandEvent& event); void OnComboTextPasted(wxClipboardTextEvent& event); void OnCheckOrRadioBox(wxCommandEvent& event); void OnUpdateUIInsertionPointText(wxUpdateUIEvent& event); void OnUpdateUIInsert(wxUpdateUIEvent& event); void OnUpdateUIAddSeveral(wxUpdateUIEvent& event); void OnUpdateUIClearButton(wxUpdateUIEvent& event); void OnUpdateUIDeleteButton(wxUpdateUIEvent& event); void OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event); void OnUpdateUIResetButton(wxUpdateUIEvent& event); void OnUpdateUISetCurrent(wxUpdateUIEvent& event); // reset the combobox parameters void Reset(); // (re)create the combobox void CreateCombo(); // the controls // ------------ // the sel mode radiobox wxRadioBox *m_radioKind; // the checkboxes for styles wxCheckBox *m_chkSort, *m_chkReadonly, *m_chkProcessEnter; // the combobox itself and the sizer it is in wxComboBox *m_combobox; wxSizer *m_sizerCombo; // the text entries for "Add/change string" and "Delete" buttons wxTextCtrl *m_textInsert, *m_textAdd, *m_textSetFirst, *m_textChange, *m_textSetValue, *m_textDelete, *m_textCur; private: wxDECLARE_EVENT_TABLE(); DECLARE_WIDGETS_PAGE(ComboboxWidgetsPage) }; // ---------------------------------------------------------------------------- // event tables // ---------------------------------------------------------------------------- wxBEGIN_EVENT_TABLE(ComboboxWidgetsPage, WidgetsPage) EVT_BUTTON(ComboPage_Reset, ComboboxWidgetsPage::OnButtonReset) EVT_BUTTON(ComboPage_Popup, ComboboxWidgetsPage::OnButtonPopup) EVT_BUTTON(ComboPage_Dismiss, ComboboxWidgetsPage::OnButtonDismiss) EVT_BUTTON(ComboPage_Change, ComboboxWidgetsPage::OnButtonChange) EVT_BUTTON(ComboPage_Delete, ComboboxWidgetsPage::OnButtonDelete) EVT_BUTTON(ComboPage_DeleteSel, ComboboxWidgetsPage::OnButtonDeleteSel) EVT_BUTTON(ComboPage_Clear, ComboboxWidgetsPage::OnButtonClear) EVT_BUTTON(ComboPage_Insert, ComboboxWidgetsPage::OnButtonInsert) EVT_BUTTON(ComboPage_Add, ComboboxWidgetsPage::OnButtonAdd) EVT_BUTTON(ComboPage_SetFirst, ComboboxWidgetsPage::OnButtonSetFirst) EVT_BUTTON(ComboPage_AddSeveral, ComboboxWidgetsPage::OnButtonAddSeveral) EVT_BUTTON(ComboPage_AddMany, ComboboxWidgetsPage::OnButtonAddMany) EVT_BUTTON(ComboPage_SetValue, ComboboxWidgetsPage::OnButtonSetValue) EVT_BUTTON(ComboPage_SetCurrent, ComboboxWidgetsPage::OnButtonSetCurrent) EVT_BUTTON(ComboPage_ContainerTests, ItemContainerWidgetsPage::OnButtonTestItemContainer) EVT_TEXT_ENTER(ComboPage_InsertText, ComboboxWidgetsPage::OnButtonInsert) EVT_TEXT_ENTER(ComboPage_AddText, ComboboxWidgetsPage::OnButtonAdd) EVT_TEXT_ENTER(ComboPage_DeleteText, ComboboxWidgetsPage::OnButtonDelete) EVT_UPDATE_UI(ComboPage_InsertionPointText, ComboboxWidgetsPage::OnUpdateUIInsertionPointText) EVT_UPDATE_UI(ComboPage_Reset, ComboboxWidgetsPage::OnUpdateUIResetButton) EVT_UPDATE_UI(ComboPage_Insert, ComboboxWidgetsPage::OnUpdateUIInsert) EVT_UPDATE_UI(ComboPage_AddSeveral, ComboboxWidgetsPage::OnUpdateUIAddSeveral) EVT_UPDATE_UI(ComboPage_Clear, ComboboxWidgetsPage::OnUpdateUIClearButton) EVT_UPDATE_UI(ComboPage_DeleteText, ComboboxWidgetsPage::OnUpdateUIClearButton) EVT_UPDATE_UI(ComboPage_Delete, ComboboxWidgetsPage::OnUpdateUIDeleteButton) EVT_UPDATE_UI(ComboPage_Change, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton) EVT_UPDATE_UI(ComboPage_ChangeText, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton) EVT_UPDATE_UI(ComboPage_DeleteSel, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton) EVT_UPDATE_UI(ComboPage_SetCurrent, ComboboxWidgetsPage::OnUpdateUISetCurrent) EVT_COMBOBOX(ComboPage_Combo, ComboboxWidgetsPage::OnComboBox) EVT_COMBOBOX_DROPDOWN(ComboPage_Combo, ComboboxWidgetsPage::OnDropdown) EVT_COMBOBOX_CLOSEUP(ComboPage_Combo, ComboboxWidgetsPage::OnCloseup) EVT_TEXT(ComboPage_Combo, ComboboxWidgetsPage::OnComboText) EVT_TEXT_ENTER(ComboPage_Combo, ComboboxWidgetsPage::OnComboText) EVT_TEXT_PASTE(ComboPage_Combo, ComboboxWidgetsPage::OnComboTextPasted) EVT_CHECKBOX(wxID_ANY, ComboboxWidgetsPage::OnCheckOrRadioBox) EVT_RADIOBOX(wxID_ANY, ComboboxWidgetsPage::OnCheckOrRadioBox) wxEND_EVENT_TABLE() // ============================================================================ // implementation // ============================================================================ #if defined(__WXUNIVERSAL__) #define FAMILY_CTRLS UNIVERSAL_CTRLS #else #define FAMILY_CTRLS NATIVE_CTRLS #endif IMPLEMENT_WIDGETS_PAGE(ComboboxWidgetsPage, wxT("Combobox"), FAMILY_CTRLS | WITH_ITEMS_CTRLS | COMBO_CTRLS ); ComboboxWidgetsPage::ComboboxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist) : ItemContainerWidgetsPage(book, imaglist, combobox_xpm) { // init everything m_chkSort = m_chkReadonly = m_chkProcessEnter = (wxCheckBox *)NULL; m_combobox = (wxComboBox *)NULL; m_sizerCombo = (wxSizer *)NULL; } void ComboboxWidgetsPage::CreateContent() { /* What we create here is a frame having 3 panes: style pane is the leftmost one, in the middle the pane with buttons allowing to perform miscellaneous combobox operations and the pane containing the combobox itself to the right */ wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL); // upper left pane // should be in sync with ComboKind_XXX values static const wxString kinds[] = { wxT("default"), wxT("simple"), wxT("drop down"), }; m_radioKind = new wxRadioBox(this, wxID_ANY, wxT("Combobox &kind:"), wxDefaultPosition, wxDefaultSize, WXSIZEOF(kinds), kinds, 1, wxRA_SPECIFY_COLS); wxSizer *sizerLeftTop = new wxStaticBoxSizer(wxVERTICAL, this, "&Set style"); m_chkSort = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("&Sort items")); m_chkReadonly = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("&Read only")); m_chkProcessEnter = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("Process &Enter")); sizerLeftTop->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer sizerLeftTop->Add(m_radioKind, 0, wxGROW | wxALL, 5); wxButton *btn = new wxButton(this, ComboPage_Reset, wxT("&Reset")); sizerLeftTop->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15); // lower left pane wxSizer *sizerLeftBottom = new wxStaticBoxSizer(wxVERTICAL, this, "&Popup"); sizerLeftBottom->Add(new wxButton(this, ComboPage_Popup, "&Show"), wxSizerFlags().Border().Centre()); sizerLeftBottom->Add(new wxButton(this, ComboPage_Dismiss, "&Hide"), wxSizerFlags().Border().Centre()); wxSizer *sizerLeft = new wxBoxSizer(wxVERTICAL); sizerLeft->Add(sizerLeftTop); sizerLeft->AddSpacer(10); sizerLeft->Add(sizerLeftBottom, wxSizerFlags().Expand()); // middle pane wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, wxT("&Change combobox contents")); wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL); wxSizer *sizerRow; sizerRow = CreateSizerWithTextAndButton(ComboPage_SetCurrent, wxT("Current &selection"), ComboPage_CurText, &m_textCur); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); wxTextCtrl *text; sizerRow = CreateSizerWithTextAndLabel(wxT("Insertion Point"), ComboPage_InsertionPointText, &text); text->SetEditable(false); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(ComboPage_Insert, wxT("&Insert this string"), ComboPage_InsertText, &m_textInsert); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(ComboPage_Add, wxT("&Add this string"), ComboPage_AddText, &m_textAdd); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(ComboPage_SetFirst, wxT("Change &1st string"), ComboPage_SetFirstText, &m_textSetFirst); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); btn = new wxButton(this, ComboPage_AddSeveral, wxT("&Append a few strings")); sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5); btn = new wxButton(this, ComboPage_AddMany, wxT("Append &many strings")); sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(ComboPage_Change, wxT("C&hange current"), ComboPage_ChangeText, &m_textChange); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(ComboPage_Delete, wxT("&Delete this item"), ComboPage_DeleteText, &m_textDelete); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); btn = new wxButton(this, ComboPage_DeleteSel, wxT("Delete &selection")); sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5); btn = new wxButton(this, ComboPage_Clear, wxT("&Clear")); sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5); sizerRow = CreateSizerWithTextAndButton(ComboPage_SetValue, wxT("SetValue"), ComboPage_SetValueText, &m_textSetValue); sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5); btn = new wxButton(this, ComboPage_ContainerTests, wxT("Run &tests")); sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5); // right pane wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL); m_combobox = new wxComboBox(this, ComboPage_Combo, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, NULL, 0); sizerRight->Add(m_combobox, 0, wxGROW | wxALL, 5); sizerRight->SetMinSize(150, 0); m_sizerCombo = sizerRight; // save it to modify it later // the 3 panes panes compose the window sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10); sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10); sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10); // final initializations Reset(); SetSizer(sizerTop); } // ---------------------------------------------------------------------------- // operations // ---------------------------------------------------------------------------- void ComboboxWidgetsPage::Reset() { m_chkSort->SetValue(false); m_chkReadonly->SetValue(false); m_chkProcessEnter->SetValue(false); } void ComboboxWidgetsPage::CreateCombo() { int flags = ms_defaultFlags; if ( m_chkSort->GetValue() ) flags |= wxCB_SORT; if ( m_chkReadonly->GetValue() ) flags |= wxCB_READONLY; if ( m_chkProcessEnter->GetValue() ) flags |= wxTE_PROCESS_ENTER; switch ( m_radioKind->GetSelection() ) { default: wxFAIL_MSG( wxT("unknown combo kind") ); // fall through case ComboKind_Default: break; case ComboKind_Simple: flags |= wxCB_SIMPLE; break; case ComboKind_DropDown: flags = wxCB_DROPDOWN; break; } wxArrayString items; if ( m_combobox ) { unsigned int count = m_combobox->GetCount(); for ( unsigned int n = 0; n < count; n++ ) { items.Add(m_combobox->GetString(n)); } m_sizerCombo->Detach( m_combobox ); delete m_combobox; } m_combobox = new wxComboBox(this, ComboPage_Combo, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, NULL, flags); unsigned int count = items.GetCount(); for ( unsigned int n = 0; n < count; n++ ) { m_combobox->Append(items[n]); } m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5); m_sizerCombo->Layout(); } // ---------------------------------------------------------------------------- // event handlers // ---------------------------------------------------------------------------- void ComboboxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event)) { Reset(); CreateCombo(); } void ComboboxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event)) { int sel = m_combobox->GetSelection(); if ( sel != wxNOT_FOUND ) { m_combobox->SetString(sel, m_textChange->GetValue()); } } void ComboboxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event)) { unsigned long n; if ( !m_textDelete->GetValue().ToULong(&n) || (n >= m_combobox->GetCount()) ) { return; } m_combobox->Delete(n); } void ComboboxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event)) { int sel = m_combobox->GetSelection(); if ( sel != wxNOT_FOUND ) { m_combobox->Delete(sel); } } void ComboboxWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event)) { wxString value = m_textSetValue->GetValue(); m_combobox->SetValue( value ); } void ComboboxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event)) { m_combobox->Clear(); } void ComboboxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event)) { static unsigned int s_item = 0; wxString s = m_textInsert->GetValue(); if ( !m_textInsert->IsModified() ) { // update the default string m_textInsert->SetValue(wxString::Format(wxT("test item %u"), ++s_item)); } if (m_combobox->GetSelection() >= 0) m_combobox->Insert(s, m_combobox->GetSelection()); } void ComboboxWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event)) { static unsigned int s_item = 0; wxString s = m_textAdd->GetValue(); if ( !m_textAdd->IsModified() ) { // update the default string m_textAdd->SetValue(wxString::Format(wxT("test item %u"), ++s_item)); } m_combobox->Append(s); } void ComboboxWidgetsPage::OnButtonSetFirst(wxCommandEvent& WXUNUSED(event)) { if ( m_combobox->IsListEmpty() ) { wxLogWarning("No string to change."); return; } m_combobox->SetString(0, m_textSetFirst->GetValue()); } void ComboboxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event)) { // "many" means 1000 here for ( unsigned int n = 0; n < 1000; n++ ) { m_combobox->Append(wxString::Format(wxT("item #%u"), n)); } } void ComboboxWidgetsPage::OnButtonSetCurrent(wxCommandEvent& WXUNUSED(event)) { long n; if ( !m_textCur->GetValue().ToLong(&n) ) return; m_combobox->SetSelection(n); } void ComboboxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event)) { m_combobox->Append(wxT("First")); m_combobox->Append(wxT("another one")); m_combobox->Append(wxT("and the last (very very very very very very very very very very long) one")); } void ComboboxWidgetsPage::OnUpdateUIInsertionPointText(wxUpdateUIEvent& event) { if (m_combobox) event.SetText( wxString::Format(wxT("%ld"), m_combobox->GetInsertionPoint()) ); } void ComboboxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event) { event.Enable( m_chkSort->GetValue() || m_chkReadonly->GetValue() || m_chkProcessEnter->GetValue() ); } void ComboboxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event) { if (m_combobox) { bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT) && (m_combobox->GetSelection() >= 0); event.Enable(enable); } } void ComboboxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event) { if (m_combobox) { unsigned long n; event.Enable(m_textDelete->GetValue().ToULong(&n) && (n < (unsigned)m_combobox->GetCount())); } } void ComboboxWidgetsPage::OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event) { if (m_combobox) event.Enable(m_combobox->GetSelection() != wxNOT_FOUND); } void ComboboxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event) { if (m_combobox) event.Enable(m_combobox->GetCount() != 0); } void ComboboxWidgetsPage::OnUpdateUIAddSeveral(wxUpdateUIEvent& event) { if (m_combobox) event.Enable(!(m_combobox->GetWindowStyle() & wxCB_SORT)); } void ComboboxWidgetsPage::OnUpdateUISetCurrent(wxUpdateUIEvent& event) { long n; event.Enable( m_textCur->GetValue().ToLong(&n) && (n == wxNOT_FOUND || (n >= 0 && (unsigned)n < m_combobox->GetCount())) ); } void ComboboxWidgetsPage::OnComboText(wxCommandEvent& event) { if (!m_combobox) return; wxString s = event.GetString(); wxASSERT_MSG( s == m_combobox->GetValue(), wxT("event and combobox values should be the same") ); if (event.GetEventType() == wxEVT_TEXT_ENTER) { wxLogMessage(wxT("Combobox enter pressed (now '%s')"), s.c_str()); } else { wxLogMessage(wxT("Combobox text changed (now '%s')"), s.c_str()); } } void ComboboxWidgetsPage::OnComboTextPasted(wxClipboardTextEvent& event) { wxLogMessage("Text pasted from clipboard."); event.Skip(); } void ComboboxWidgetsPage::OnComboBox(wxCommandEvent& event) { long sel = event.GetInt(); const wxString selstr = wxString::Format(wxT("%ld"), sel); m_textDelete->SetValue(selstr); m_textCur->SetValue(selstr); wxLogMessage(wxT("Combobox item %ld selected"), sel); wxLogMessage(wxT("Combobox GetValue(): %s"), m_combobox->GetValue().c_str() ); if ( event.GetString() != m_combobox->GetValue() ) { wxLogMessage("ERROR: Event has different string \"%s\"", event.GetString()); } } void ComboboxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event)) { CreateCombo(); } void ComboboxWidgetsPage::OnDropdown(wxCommandEvent& WXUNUSED(event)) { wxLogMessage(wxT("Combobox dropped down")); } void ComboboxWidgetsPage::OnCloseup(wxCommandEvent& WXUNUSED(event)) { wxLogMessage(wxT("Combobox closed up")); } #endif // wxUSE_COMBOBOX