384 lines
13 KiB
C++
384 lines
13 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: validate.cpp
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// Purpose: wxWidgets validator sample
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// Author: Julian Smart
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// Modified by:
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// Created: 04/01/98
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// See online help for an overview of validators. In general, a
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// validator transfers data between a control and a variable.
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// It may also test for validity of a string transferred to or
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// from a text control. All validators transfer data, but not
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// all test validity, so don't be confused by the name.
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif // __BORLANDC__
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif // WX_PRECOMP
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#include "validate.h"
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#include "wx/sizer.h"
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#include "wx/valgen.h"
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#include "wx/valtext.h"
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#include "wx/valnum.h"
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#ifndef wxHAS_IMAGES_IN_RESOURCES
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#include "../sample.xpm"
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#endif
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// ----------------------------------------------------------------------------
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// Global data
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// ----------------------------------------------------------------------------
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MyData g_data;
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wxString g_listbox_choices[] =
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{wxT("one"), wxT("two"), wxT("three")};
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wxString g_combobox_choices[] =
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{wxT("yes"), wxT("no (doesn't validate)"), wxT("maybe (doesn't validate)")};
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wxString g_radiobox_choices[] =
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{wxT("green"), wxT("yellow"), wxT("red")};
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// ----------------------------------------------------------------------------
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// MyData
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// ----------------------------------------------------------------------------
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MyData::MyData()
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{
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// This string will be passed to an alpha-only validator, which
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// will complain because spaces aren't alpha. Note that validation
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// is performed only when 'OK' is pressed.
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m_string = wxT("Spaces are invalid here");
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m_string2 = "Valid text";
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m_listbox_choices.Add(0);
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m_intValue = 0;
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m_doubleValue = 12354.31;
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}
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// ----------------------------------------------------------------------------
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// MyComboBoxValidator
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// ----------------------------------------------------------------------------
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bool MyComboBoxValidator::Validate(wxWindow *WXUNUSED(parent))
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{
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wxASSERT(GetWindow()->IsKindOf(CLASSINFO(wxComboBox)));
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wxComboBox* cb = (wxComboBox*)GetWindow();
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if (cb->GetValue() == g_combobox_choices[1] ||
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cb->GetValue() == g_combobox_choices[2])
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{
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// we accept any string != g_combobox_choices[1|2] !
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wxLogError("Invalid combo box text!");
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return false;
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}
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if (m_var)
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*m_var = cb->GetValue();
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return true;
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}
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bool MyComboBoxValidator::TransferToWindow()
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{
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wxASSERT(GetWindow()->IsKindOf(CLASSINFO(wxComboBox)));
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if ( m_var )
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{
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wxComboBox* cb = (wxComboBox*)GetWindow();
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if ( !cb )
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return false;
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cb->SetValue(*m_var);
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}
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return true;
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}
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bool MyComboBoxValidator::TransferFromWindow()
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{
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wxASSERT(GetWindow()->IsKindOf(CLASSINFO(wxComboBox)));
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if ( m_var )
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{
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wxComboBox* cb = (wxComboBox*)GetWindow();
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if ( !cb )
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return false;
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*m_var = cb->GetValue();
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}
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return true;
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}
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// ----------------------------------------------------------------------------
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// MyApp
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// ----------------------------------------------------------------------------
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IMPLEMENT_APP(MyApp)
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bool MyApp::OnInit()
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{
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if ( !wxApp::OnInit() )
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return false;
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// Create and display the main frame window.
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MyFrame *frame = new MyFrame((wxFrame *) NULL, wxT("Validator Test"),
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50, 50, 300, 250);
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frame->Show(true);
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return true;
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}
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// ----------------------------------------------------------------------------
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// MyFrame
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// ----------------------------------------------------------------------------
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wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MENU(wxID_EXIT, MyFrame::OnQuit)
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EVT_MENU(VALIDATE_TEST_DIALOG, MyFrame::OnTestDialog)
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EVT_MENU(VALIDATE_TOGGLE_BELL, MyFrame::OnToggleBell)
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wxEND_EVENT_TABLE()
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MyFrame::MyFrame(wxFrame *frame, const wxString&title, int x, int y, int w, int h)
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: wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
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m_silent(true)
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{
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SetIcon(wxICON(sample));
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// Create a listbox to display the validated data.
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m_listbox = new wxListBox(this, wxID_ANY);
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m_listbox->Append(wxString(wxT("Try 'File|Test' to see how validators work.")));
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wxMenu *file_menu = new wxMenu;
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file_menu->Append(VALIDATE_TEST_DIALOG, wxT("&Test dialog..."), wxT("Demonstrate validators"));
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file_menu->AppendCheckItem(VALIDATE_TOGGLE_BELL, wxT("&Bell on error"), wxT("Toggle bell on error"));
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file_menu->AppendSeparator();
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file_menu->Append(wxID_EXIT, wxT("E&xit"));
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wxMenuBar *menu_bar = new wxMenuBar;
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menu_bar->Append(file_menu, wxT("&File"));
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SetMenuBar(menu_bar);
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// All validators share a common (static) flag that controls
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// whether they beep on error. Here we turn it off:
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wxValidator::SuppressBellOnError(m_silent);
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file_menu->Check(VALIDATE_TOGGLE_BELL, !wxValidator::IsSilent());
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#if wxUSE_STATUSBAR
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CreateStatusBar(1);
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#endif // wxUSE_STATUSBAR
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}
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void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
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{
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Close(true);
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}
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void MyFrame::OnTestDialog(wxCommandEvent& WXUNUSED(event))
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{
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// The validators defined in the dialog implementation bind controls
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// and variables together. Values are transferred between them behind
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// the scenes, so here we don't have to query the controls for their
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// values.
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MyDialog dialog(this, wxT("Validator demonstration"));
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// When the dialog is displayed, validators automatically transfer
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// data from variables to their corresponding controls.
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if ( dialog.ShowModal() == wxID_OK )
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{
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// 'OK' was pressed, so controls that have validators are
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// automatically transferred to the variables we specified
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// when we created the validators.
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m_listbox->Clear();
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m_listbox->Append(wxString(wxT("string: ")) + g_data.m_string);
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m_listbox->Append(wxString(wxT("string #2: ")) + g_data.m_string2);
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for(unsigned int i = 0; i < g_data.m_listbox_choices.GetCount(); ++i)
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{
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int j = g_data.m_listbox_choices[i];
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m_listbox->Append(wxString(wxT("listbox choice(s): ")) + g_listbox_choices[j]);
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}
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wxString checkbox_state(g_data.m_checkbox_state ? wxT("checked") : wxT("unchecked"));
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m_listbox->Append(wxString(wxT("checkbox: ")) + checkbox_state);
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m_listbox->Append(wxString(wxT("combobox: ")) + g_data.m_combobox_choice);
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m_listbox->Append(wxString(wxT("radiobox: ")) + g_radiobox_choices[g_data.m_radiobox_choice]);
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m_listbox->Append(wxString::Format("integer value: %d", g_data.m_intValue));
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m_listbox->Append(wxString::Format("double value: %.3f", g_data.m_doubleValue));
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}
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}
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void MyFrame::OnToggleBell(wxCommandEvent& event)
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{
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m_silent = !m_silent;
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wxValidator::SuppressBellOnError(m_silent);
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event.Skip();
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}
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// ----------------------------------------------------------------------------
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// MyDialog
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// ----------------------------------------------------------------------------
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MyDialog::MyDialog( wxWindow *parent, const wxString& title,
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const wxPoint& pos, const wxSize& size, const long WXUNUSED(style) ) :
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wxDialog(parent, VALIDATE_DIALOG_ID, title, pos, size, wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER)
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{
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// setup the flex grid sizer
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// -------------------------
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wxFlexGridSizer *flexgridsizer = new wxFlexGridSizer(3, 2, 5, 5);
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// Create and add controls to sizers. Note that a member variable
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// of g_data is bound to each control upon construction. There is
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// currently no easy way to substitute a different validator or a
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// different transfer variable after a control has been constructed.
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// Pointers to some of these controls are saved in member variables
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// so that we can use them elsewhere, like this one.
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m_text = new wxTextCtrl(this, VALIDATE_TEXT, wxEmptyString,
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wxDefaultPosition, wxDefaultSize, 0,
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wxTextValidator(wxFILTER_ALPHA, &g_data.m_string));
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m_text->SetToolTip("uses wxTextValidator with wxFILTER_ALPHA");
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flexgridsizer->Add(m_text, 1, wxGROW);
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// Now set a wxTextValidator with an explicit list of characters NOT allowed:
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wxTextValidator textVal(wxFILTER_EMPTY|wxFILTER_EXCLUDE_CHAR_LIST, &g_data.m_string2);
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textVal.SetCharExcludes("bcwyz");
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wxTextCtrl* txt2 =
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new wxTextCtrl(this, VALIDATE_TEXT2, wxEmptyString,
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wxDefaultPosition, wxDefaultSize, 0, textVal);
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txt2->SetToolTip("uses wxTextValidator with wxFILTER_EMPTY|wxFILTER_EXCLUDE_CHAR_LIST to exclude 'bcwyz'");
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flexgridsizer->Add(txt2, 1, wxGROW);
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flexgridsizer->Add(new wxListBox((wxWindow*)this, VALIDATE_LIST,
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wxDefaultPosition, wxDefaultSize,
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3, g_listbox_choices, wxLB_MULTIPLE,
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wxGenericValidator(&g_data.m_listbox_choices)),
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1, wxGROW);
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m_combobox = new wxComboBox(this, VALIDATE_COMBO, wxEmptyString,
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wxDefaultPosition, wxDefaultSize,
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3, g_combobox_choices, 0L,
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MyComboBoxValidator(&g_data.m_combobox_choice));
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m_combobox->SetToolTip("uses a custom validator (MyComboBoxValidator)");
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flexgridsizer->Add(m_combobox, 1, wxALIGN_CENTER);
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// This wxCheckBox* doesn't need to be assigned to any pointer
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// because we don't use it elsewhere--it can be anonymous.
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// We don't need any such pointer to query its state, which
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// can be gotten directly from g_data.
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flexgridsizer->Add(new wxCheckBox(this, VALIDATE_CHECK, wxT("Sample checkbox"),
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wxDefaultPosition, wxDefaultSize, 0,
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wxGenericValidator(&g_data.m_checkbox_state)),
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1, wxALIGN_CENTER|wxALL, 15);
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flexgridsizer->AddGrowableCol(0);
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flexgridsizer->AddGrowableCol(1);
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flexgridsizer->AddGrowableRow(1);
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// setup the button sizer
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// ----------------------
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wxStdDialogButtonSizer *btn = new wxStdDialogButtonSizer();
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btn->AddButton(new wxButton(this, wxID_OK));
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btn->AddButton(new wxButton(this, wxID_CANCEL));
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btn->Realize();
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// setup a sizer with the controls for numeric validators
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// ------------------------------------------------------
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wxIntegerValidator<int> valInt(&g_data.m_intValue,
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wxNUM_VAL_THOUSANDS_SEPARATOR |
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wxNUM_VAL_ZERO_AS_BLANK);
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valInt.SetMin(0); // Only allow positive numbers
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m_numericTextInt = new wxTextCtrl
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(
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this,
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wxID_ANY,
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"",
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wxDefaultPosition,
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wxDefaultSize,
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wxTE_RIGHT,
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valInt
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);
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m_numericTextInt->SetToolTip("uses wxIntegerValidator to accept positive "
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"integers only");
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m_numericTextDouble = new wxTextCtrl
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(
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this,
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wxID_ANY,
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"",
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wxDefaultPosition,
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wxDefaultSize,
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wxTE_RIGHT,
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wxMakeFloatingPointValidator
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(
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3,
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&g_data.m_doubleValue,
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wxNUM_VAL_THOUSANDS_SEPARATOR |
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wxNUM_VAL_NO_TRAILING_ZEROES
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)
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);
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m_numericTextDouble->SetToolTip("uses wxFloatingPointValidator with 3 decimals");
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wxBoxSizer *numSizer = new wxBoxSizer( wxHORIZONTAL );
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numSizer->Add( m_numericTextInt, 1, wxALL, 10 );
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numSizer->Add( m_numericTextDouble, 1, wxALL, 10 );
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// setup the main sizer
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// --------------------
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wxBoxSizer *mainsizer = new wxBoxSizer( wxVERTICAL );
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mainsizer->Add(flexgridsizer, 1, wxGROW | wxALL, 10);
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mainsizer->Add(new wxRadioBox((wxWindow*)this, VALIDATE_RADIO, wxT("Pick a color"),
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wxDefaultPosition, wxDefaultSize,
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3, g_radiobox_choices, 1, wxRA_SPECIFY_ROWS,
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wxGenericValidator(&g_data.m_radiobox_choice)),
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0, wxGROW | wxLEFT|wxBOTTOM|wxRIGHT, 10);
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mainsizer->Add( numSizer, 0, wxGROW | wxALL );
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mainsizer->Add(btn, 0, wxGROW | wxALL, 10);
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SetSizer(mainsizer);
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mainsizer->SetSizeHints(this);
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// make the dialog a bit bigger than its minimal size:
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SetSize(GetBestSize()*1.5);
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}
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bool MyDialog::TransferDataToWindow()
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{
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bool r = wxDialog::TransferDataToWindow();
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// These function calls have to be made here, after the
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// dialog has been created.
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m_text->SetFocus();
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m_combobox->SetSelection(0);
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return r;
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}
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