samples/xrc/derivdlg.cpp

   1 //-----------------------------------------------------------------------------
   2 // Name:        derivdlg.cpp
   3 // Purpose:     XML resources sample: A derived dialog
   4 // Author:      Robert O'Connor (rob@medicalmnemonics.com), Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) Robert O'Connor and Vaclav Slavik
   7 // Licence:     wxWindows licence
   8 //-----------------------------------------------------------------------------
   9
  10 //-----------------------------------------------------------------------------
  11 // Standard wxWidgets headers
  12 //-----------------------------------------------------------------------------
  13
  14 // For compilers that support precompilation, includes "wx/wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #ifdef __BORLANDC__
  18     #pragma hdrstop
  19 #endif
  20
  21 // For all others, include the necessary headers (this file is usually all you
  22 // need because it includes almost all "standard" wxWidgets headers)
  23 #ifndef WX_PRECOMP
  24     #include "wx/wx.h"
  25 #endif
  26
  27 //-----------------------------------------------------------------------------
  28 // Header of this .cpp file
  29 //-----------------------------------------------------------------------------
  30
  31 #include "derivdlg.h"
  32
  33 //-----------------------------------------------------------------------------
  34 // Remaining headers: Needed wx headers, then wx/contrib headers, then application headers
  35 //-----------------------------------------------------------------------------
  36
  37 #include "wx/xrc/xmlres.h"              // XRC XML resouces
  38
  39 //-----------------------------------------------------------------------------
  40 // Event table: connect the events to the handler functions to process them
  41 //-----------------------------------------------------------------------------
  42
  43 BEGIN_EVENT_TABLE(PreferencesDialog, wxDialog)
  44     EVT_BUTTON( XRCID( "my_button" ), PreferencesDialog::OnMyButtonClicked )
  45     EVT_UPDATE_UI(XRCID( "my_checkbox" ), PreferencesDialog::OnUpdateUIMyCheckbox )
  46     // Note that the ID here isn't a XRCID, it is one of the standard wx ID's.
  47     EVT_BUTTON( wxID_OK, PreferencesDialog::OnOK )
  48 END_EVENT_TABLE()
  49
  50 //-----------------------------------------------------------------------------
  51 // Public members
  52 //-----------------------------------------------------------------------------
  53 // Constructor (Notice how small and easy it is)
  54 PreferencesDialog::PreferencesDialog(wxWindow* parent)
  55 {
  56     wxXmlResource::Get()->LoadDialog(this, parent, wxT("derived_dialog"));
  57 }
  58
  59 //-----------------------------------------------------------------------------
  60 // Private members (including the event handlers)
  61 //-----------------------------------------------------------------------------
  62
  63 void PreferencesDialog::OnMyButtonClicked( wxCommandEvent &WXUNUSED(event) )
  64 {
  65     // Construct a message dialog.
  66     wxMessageDialog msgDlg(this, _("You clicked on My Button"));
  67
  68     // Show it modally.
  69     msgDlg.ShowModal();
  70 }
  71
  72
  73 // Update the enabled/disabled state of the edit/delete buttons depending on
  74 // whether a row (item) is selected in the listctrl
  75 void PreferencesDialog::OnUpdateUIMyCheckbox( wxUpdateUIEvent &WXUNUSED(event) )
  76 {
  77     // Get a boolean value of whether the checkbox is checked
  78     bool myCheckBoxIsChecked;
  79     // You could just write:
  80     // myCheckBoxIsChecked = event.IsChecked();
  81     // since the event that was passed into this function already has the
  82     // is a pointer to the right control. However,
  83     // this is the XRCCTRL way (which is more obvious as to what is going on).
  84     myCheckBoxIsChecked = XRCCTRL(*this, "my_checkbox", wxCheckBox)->IsChecked();
  85
  86     // Now call either Enable(true) or Enable(false) on the textctrl, depending
  87     // on the value of that boolean.
  88     XRCCTRL(*this, "my_textctrl", wxTextCtrl)->Enable(myCheckBoxIsChecked);
  89 }
  90
  91
  92 void PreferencesDialog::OnOK( wxCommandEvent& WXUNUSED(event) )
  93 {
  94     // Construct a message dialog (An extra parameters to put a cancel button on).
  95     wxMessageDialog msgDlg2(this, _("Press OK to close Derived dialog, or Cancel to abort"),
  96                             _("Overriding base class OK button handler"),
  97                             wxOK | wxCANCEL | wxCENTER );
  98
  99     // Show the message dialog, and if it returns wxID_OK (ie they clicked on OK button)...
 100     if (msgDlg2.ShowModal() == wxID_OK)
 101     {
 102         // ...then end this Preferences dialog.
 103         EndModal( wxID_OK );
 104         // You could also have used event.Skip() which would then skip up
 105         // to the wxDialog's event table and see if there was a EVT_BUTTON
 106         // handler for wxID_OK and if there was, then execute that code.
 107     }
 108
 109     // Otherwise do nothing.
 110 }