X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/457814b5aa2ee5c83abc65a6aee2a3ebcb1af34f..d8eff331e23435d9d8d6483a40f6fd9997a13f87:/samples/validate/validate.cpp diff --git a/samples/validate/validate.cpp b/samples/validate/validate.cpp index 70e5c07232..dc03e879b7 100644 --- a/samples/validate/validate.cpp +++ b/samples/validate/validate.cpp @@ -1,105 +1,333 @@ ///////////////////////////////////////////////////////////////////////////// // Name: validate.cpp -// Purpose: wxWindows validation sample +// Purpose: wxWidgets validator sample // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Copyright: (c) Julian Smart +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -// #pragma implementation -// #pragma interface -#endif +// See online help for an overview of validators. In general, a +// validator transfers data between a control and a variable. +// It may also test for validity of a string transferred to or +// from a text control. All validators transfer data, but not +// all test validity, so don't be confused by the name. // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop -#endif + #pragma hdrstop +#endif // __BORLANDC__ #ifndef WX_PRECOMP -#include "wx/wx.h" -#endif + #include "wx/wx.h" +#endif // WX_PRECOMP + +#include "validate.h" +#include "wx/sizer.h" +#include "wx/valgen.h" #include "wx/valtext.h" -#include "validate.h" +#ifndef __WXMSW__ + #include "../sample.xpm" +#endif -BEGIN_EVENT_TABLE(MyFrame, wxFrame) - EVT_MENU(wxID_EXIT, MyFrame::OnQuit) - EVT_MENU(VALIDATE_TEST_DIALOG, MyFrame::OnTestDialog) -END_EVENT_TABLE() +// ---------------------------------------------------------------------------- +// Global data +// ---------------------------------------------------------------------------- -IMPLEMENT_APP(MyApp) +MyData g_data; -MyData g_data; +wxString g_listbox_choices[] = + {wxT("one"), wxT("two"), wxT("three")}; -bool MyApp::OnInit(void) +wxString g_combobox_choices[] = + {wxT("yes"), wxT("no (doesn't validate)"), wxT("maybe (doesn't validate)")}; + +wxString g_radiobox_choices[] = + {wxT("green"), wxT("yellow"), wxT("red")}; + +// ---------------------------------------------------------------------------- +// MyData +// ---------------------------------------------------------------------------- + +MyData::MyData() { - // Create the main frame window - MyFrame *frame = new MyFrame(NULL, "Validation Test", 50, 50, 300, 250); + // This string will be passed to an alpha-only validator, which + // will complain because spaces aren't alpha. Note that validation + // is performed only when 'OK' is pressed. + m_string = wxT("Spaces are invalid here"); + m_string2 = "Valid text"; + m_listbox_choices.Add(0); +} - // Give it an icon -#ifdef __WINDOWS__ - frame->SetIcon(wxIcon("mondrian")); -#endif -#ifdef __X__ - frame->SetIcon(wxIcon("aiai.xbm")); -#endif +// ---------------------------------------------------------------------------- +// MyComboBoxValidator +// ---------------------------------------------------------------------------- + +bool MyComboBoxValidator::Validate(wxWindow *WXUNUSED(parent)) +{ + wxASSERT(GetWindow()->IsKindOf(CLASSINFO(wxComboBox))); + + wxComboBox* cb = (wxComboBox*)GetWindow(); + if (cb->GetValue() == g_combobox_choices[1] || + cb->GetValue() == g_combobox_choices[2]) + { + // we accept any string != g_combobox_choices[1|2] ! - // Make a menubar - wxMenu *file_menu = new wxMenu; + wxLogError("Invalid combo box text!"); + return false; + } - file_menu->Append(VALIDATE_TEST_DIALOG, "&Test dialog"); - file_menu->Append(wxID_EXIT, "E&xit"); - wxMenuBar *menu_bar = new wxMenuBar; - menu_bar->Append(file_menu, "File"); - frame->SetMenuBar(menu_bar); + if (m_var) + *m_var = cb->GetValue(); - frame->CreateStatusBar(1); + return true; +} + +bool MyComboBoxValidator::TransferToWindow() +{ + wxASSERT(GetWindow()->IsKindOf(CLASSINFO(wxComboBox))); + + if ( m_var ) + { + wxComboBox* cb = (wxComboBox*)GetWindow(); + if ( !cb ) + return false; + + cb->SetValue(*m_var); + } - // Show the frame - frame->Show(TRUE); + return true; +} + +bool MyComboBoxValidator::TransferFromWindow() +{ + wxASSERT(GetWindow()->IsKindOf(CLASSINFO(wxComboBox))); - SetTopWindow(frame); + if ( m_var ) + { + wxComboBox* cb = (wxComboBox*)GetWindow(); + if ( !cb ) + return false; - return TRUE; + *m_var = cb->GetValue(); + } + + return true; } -// My frame constructor -MyFrame::MyFrame(wxFrame *frame, char *title, int x, int y, int w, int h): - wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h)) -{} +// ---------------------------------------------------------------------------- +// MyApp +// ---------------------------------------------------------------------------- -void MyFrame::OnQuit(wxCommandEvent& event) +IMPLEMENT_APP(MyApp) + +bool MyApp::OnInit() { - Close(TRUE); + if ( !wxApp::OnInit() ) + return false; + + // Create and display the main frame window. + MyFrame *frame = new MyFrame((wxFrame *) NULL, wxT("Validator Test"), + 50, 50, 300, 250); + frame->Show(true); + SetTopWindow(frame); + return true; } -void MyFrame::OnTestDialog(wxCommandEvent& event) +// ---------------------------------------------------------------------------- +// MyFrame +// ---------------------------------------------------------------------------- + +BEGIN_EVENT_TABLE(MyFrame, wxFrame) + EVT_MENU(wxID_EXIT, MyFrame::OnQuit) + EVT_MENU(VALIDATE_TEST_DIALOG, MyFrame::OnTestDialog) + EVT_MENU(VALIDATE_TOGGLE_BELL, MyFrame::OnToggleBell) +END_EVENT_TABLE() + +MyFrame::MyFrame(wxFrame *frame, const wxString&title, int x, int y, int w, int h) + : wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)), + m_silent(true) { - MyDialog dialog(this, "Validation test dialog", wxPoint(100, 100), wxSize(340, 200)); + SetIcon(wxICON(sample)); + + // Create a listbox to display the validated data. + m_listbox = new wxListBox(this, wxID_ANY); + m_listbox->Append(wxString(wxT("Try 'File|Test' to see how validators work."))); + + wxMenu *file_menu = new wxMenu; + + file_menu->Append(VALIDATE_TEST_DIALOG, wxT("&Test dialog..."), wxT("Demonstrate validators")); + file_menu->AppendCheckItem(VALIDATE_TOGGLE_BELL, wxT("&Bell on error"), wxT("Toggle bell on error")); + file_menu->AppendSeparator(); + file_menu->Append(wxID_EXIT, wxT("E&xit")); - dialog.ShowModal(); + wxMenuBar *menu_bar = new wxMenuBar; + menu_bar->Append(file_menu, wxT("&File")); + SetMenuBar(menu_bar); + + // All validators share a common (static) flag that controls + // whether they beep on error. Here we turn it off: + wxValidator::SuppressBellOnError(m_silent); + file_menu->Check(VALIDATE_TOGGLE_BELL, !wxValidator::IsSilent()); + +#if wxUSE_STATUSBAR + CreateStatusBar(1); +#endif // wxUSE_STATUSBAR +} + +void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) +{ + Close(true); } -MyDialog::MyDialog(wxWindow *parent, const wxString& title, const wxPoint& pos, const wxSize& size, - const long style): - wxDialog(parent, VALIDATE_DIALOG_ID, title, pos, size, wxDEFAULT_DIALOG_STYLE|wxDIALOG_MODAL) +void MyFrame::OnTestDialog(wxCommandEvent& WXUNUSED(event)) { - wxButton *but1 = new wxButton(this, wxID_OK, "OK", wxPoint(250, 10), wxSize(80, 30)); - wxButton *but2 = new wxButton(this, wxID_CANCEL, "Cancel", wxPoint(250, 60), wxSize(80, 30)); + // The validators defined in the dialog implementation bind controls + // and variables together. Values are transferred between them behind + // the scenes, so here we don't have to query the controls for their + // values. + MyDialog dialog(this, wxT("Validator demonstration")); + + // When the dialog is displayed, validators automatically transfer + // data from variables to their corresponding controls. + if ( dialog.ShowModal() == wxID_OK ) + { + // 'OK' was pressed, so controls that have validators are + // automatically transferred to the variables we specified + // when we created the validators. + m_listbox->Clear(); + m_listbox->Append(wxString(wxT("string: ")) + g_data.m_string); + m_listbox->Append(wxString(wxT("string #2: ")) + g_data.m_string2); + + for(unsigned int i = 0; i < g_data.m_listbox_choices.GetCount(); ++i) + { + int j = g_data.m_listbox_choices[i]; + m_listbox->Append(wxString(wxT("listbox choice(s): ")) + g_listbox_choices[j]); + } + + wxString checkbox_state(g_data.m_checkbox_state ? wxT("checked") : wxT("unchecked")); + m_listbox->Append(wxString(wxT("checkbox: ")) + checkbox_state); + m_listbox->Append(wxString(wxT("combobox: ")) + g_data.m_combobox_choice); + m_listbox->Append(wxString(wxT("radiobox: ")) + g_radiobox_choices[g_data.m_radiobox_choice]); + } +} + +void MyFrame::OnToggleBell(wxCommandEvent& event) +{ + m_silent = !m_silent; + wxValidator::SuppressBellOnError(m_silent); + event.Skip(); +} + +// ---------------------------------------------------------------------------- +// MyDialog +// ---------------------------------------------------------------------------- + +MyDialog::MyDialog( wxWindow *parent, const wxString& title, + const wxPoint& pos, const wxSize& size, const long WXUNUSED(style) ) : + wxDialog(parent, VALIDATE_DIALOG_ID, title, pos, size, wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER) +{ + // setup the flex grid sizer + // ------------------------- + + wxFlexGridSizer *flexgridsizer = new wxFlexGridSizer(3, 2, 5, 5); + + // Create and add controls to sizers. Note that a member variable + // of g_data is bound to each control upon construction. There is + // currently no easy way to substitute a different validator or a + // different transfer variable after a control has been constructed. + + // Pointers to some of these controls are saved in member variables + // so that we can use them elsewhere, like this one. + m_text = new wxTextCtrl(this, VALIDATE_TEXT, wxEmptyString, + wxDefaultPosition, wxDefaultSize, 0, + wxTextValidator(wxFILTER_ALPHA, &g_data.m_string)); + m_text->SetToolTip("uses wxTextValidator with wxFILTER_ALPHA"); + flexgridsizer->Add(m_text, 1, wxGROW); + - wxTextCtrl *txt1 = new wxTextCtrl(this, VALIDATE_TEXT, "", - wxPoint(10, 10), wxSize(100, -1), 0, wxTextValidator(wxFILTER_ALPHA, &g_data.m_string)); + // Now set a wxTextValidator with an explicit list of characters NOT allowed: + wxTextValidator textVal(wxFILTER_EMPTY|wxFILTER_EXCLUDE_LIST, &g_data.m_string2); + textVal.SetCharExcludes("bcwyz"); + wxTextCtrl* txt2 = + new wxTextCtrl(this, VALIDATE_TEXT2, wxEmptyString, + wxDefaultPosition, wxDefaultSize, 0, textVal); + txt2->SetToolTip("uses wxTextValidator with wxFILTER_EMPTY|wxFILTER_EXCLUDE_LIST (to exclude 'bcwyz')"); + flexgridsizer->Add(txt2, 1, wxGROW); + + flexgridsizer->Add(new wxListBox((wxWindow*)this, VALIDATE_LIST, + wxDefaultPosition, wxDefaultSize, + 3, g_listbox_choices, wxLB_MULTIPLE, + wxGenericValidator(&g_data.m_listbox_choices)), + 1, wxGROW); + + m_combobox = new wxComboBox(this, VALIDATE_COMBO, wxEmptyString, + wxDefaultPosition, wxDefaultSize, + 3, g_combobox_choices, 0L, + MyComboBoxValidator(&g_data.m_combobox_choice)); + m_combobox->SetToolTip("uses a custom validator (MyComboBoxValidator)"); + flexgridsizer->Add(m_combobox, 1, wxALIGN_CENTER); + + // This wxCheckBox* doesn't need to be assigned to any pointer + // because we don't use it elsewhere--it can be anonymous. + // We don't need any such pointer to query its state, which + // can be gotten directly from g_data. + flexgridsizer->Add(new wxCheckBox(this, VALIDATE_CHECK, wxT("Sample checkbox"), + wxDefaultPosition, wxDefaultSize, 0, + wxGenericValidator(&g_data.m_checkbox_state)), + 1, wxALIGN_CENTER|wxALL, 15); + + flexgridsizer->AddGrowableCol(0); + flexgridsizer->AddGrowableCol(1); + flexgridsizer->AddGrowableRow(1); + + + // setup the button sizer + // ---------------------- + + wxStdDialogButtonSizer *btn = new wxStdDialogButtonSizer(); + btn->AddButton(new wxButton(this, wxID_OK)); + btn->AddButton(new wxButton(this, wxID_CANCEL)); + btn->Realize(); + + + // setup the main sizer + // -------------------- + + wxBoxSizer *mainsizer = new wxBoxSizer( wxVERTICAL ); + + mainsizer->Add(flexgridsizer, 1, wxGROW | wxALL, 10); + + mainsizer->Add(new wxRadioBox((wxWindow*)this, VALIDATE_RADIO, wxT("Pick a color"), + wxDefaultPosition, wxDefaultSize, + 3, g_radiobox_choices, 1, wxRA_SPECIFY_ROWS, + wxGenericValidator(&g_data.m_radiobox_choice)), + 0, wxGROW | wxLEFT|wxBOTTOM|wxRIGHT, 10); + + mainsizer->Add(btn, 0, wxGROW | wxALL, 10); + + SetSizer(mainsizer); + mainsizer->SetSizeHints(this); + + // make the dialog a bit bigger than its minimal size: + SetSize(GetBestSize()*1.5); +} + +bool MyDialog::TransferDataToWindow() +{ + bool r = wxDialog::TransferDataToWindow(); -// SetBackgroundColour(wxColour(0,0,255)); + // These function calls have to be made here, after the + // dialog has been created. + m_text->SetFocus(); + m_combobox->SetSelection(0); - but1->SetFocus(); - but1->SetDefault(); + return r; }