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 // GCC implementation
  12 //-----------------------------------------------------------------------------
  13
  14 #ifdef __GNUG__
  15     #pragma implementation "derivdlg.h"
  16 #endif
  17
  18 //-----------------------------------------------------------------------------
  19 // Standard wxWindows headers
  20 //-----------------------------------------------------------------------------
  21
  22 // For compilers that support precompilation, includes "wx/wx.h".
  23 #include "wx/wxprec.h"
  24
  25 #ifdef __BORLANDC__
  26     #pragma hdrstop
  27 #endif
  28
  29 // For all others, include the necessary headers (this file is usually all you
  30 // need because it includes almost all "standard" wxWindows headers)
  31 #ifndef WX_PRECOMP
  32     #include "wx/wx.h"
  33 #endif
  34
  35 //-----------------------------------------------------------------------------
  36 // Header of this .cpp file
  37 //-----------------------------------------------------------------------------
  38
  39 #include "derivdlg.h"
  40
  41 //-----------------------------------------------------------------------------
  42 // Remaining headers: Needed wx headers, then wx/contrib headers, then application headers
  43 //-----------------------------------------------------------------------------
  44
  45 #include "wx/xrc/xmlres.h"              // XRC XML resouces
  46
  47 //-----------------------------------------------------------------------------
  48 // Event table: connect the events to the handler functions to process them
  49 //-----------------------------------------------------------------------------
  50
  51 BEGIN_EVENT_TABLE(PreferencesDialog, wxDialog)
  52     EVT_BUTTON( XRCID( "my_button" ), PreferencesDialog::OnMyButtonClicked )
  53     EVT_UPDATE_UI(XRCID( "my_checkbox" ), PreferencesDialog::OuUpdateUIMyCheckbox )
  54     // Note that the ID here isn't a XRCID, it is one of the standard wx ID's.
  55     EVT_BUTTON( wxID_OK, PreferencesDialog::OnOK )
  56 END_EVENT_TABLE()
  57
  58 //-----------------------------------------------------------------------------
  59 // Public members
  60 //-----------------------------------------------------------------------------
  61 // Constructor (Notice how small and easy it is)
  62 PreferencesDialog::PreferencesDialog(wxWindow* parent)
  63 {
  64     wxXmlResource::Get()->LoadDialog(this, parent, wxT("derived_dialog"));
  65 }
  66
  67 // Destructor. (Empty, as I don't need anything special done when destructing).
  68 PreferencesDialog::~PreferencesDialog()
  69 {
  70 }
  71
  72 //-----------------------------------------------------------------------------
  73 // Private members (including the event handlers)
  74 //-----------------------------------------------------------------------------
  75
  76 void PreferencesDialog::OnMyButtonClicked( wxCommandEvent &WXUNUSED(event) )
  77 {
  78     // Construct a message dialog.
  79     wxMessageDialog msgDlg(this, _("You clicked on My Button"));
  80
  81     // Show it modally.
  82     msgDlg.ShowModal();
  83 }
  84
  85
  86 // Update the enabled/disabled state of the edit/delete buttons depending on
  87 // whether a row (item) is selected in the listctrl
  88 void PreferencesDialog::OuUpdateUIMyCheckbox( wxUpdateUIEvent &WXUNUSED(event) )
  89 {
  90     // Get a boolean value of whether the checkbox is checked
  91     bool myCheckBoxIsChecked;
  92     // You could just write:
  93     // myCheckBoxIsChecked = event.IsChecked();
  94     // since the event that was passed into this function already has the
  95     // is a pointer to the right control. However,
  96     // this is the XRCCTRL way (which is more obvious as to what is going on).
  97     myCheckBoxIsChecked = XRCCTRL(*this, "my_checkbox", wxCheckBox)->IsChecked();
  98
  99     // Now call either Enable(TRUE) or Enable(FALSE) on the textctrl, depending
 100     // on the value of that boolean.
 101     XRCCTRL(*this, "my_textctrl", wxTextCtrl)->Enable(myCheckBoxIsChecked);
 102 }
 103
 104
 105 void PreferencesDialog::OnOK( wxCommandEvent& WXUNUSED(event) )
 106 {
 107     // Construct a message dialog (An extra parameters to put a cancel button on).
 108     wxMessageDialog msgDlg2(this, _("Press OK to close Derived dialog, or Cancel to abort"),
 109                             _("Overriding base class OK button handler"),
 110                             wxOK | wxCANCEL | wxCENTER );
 111
 112     // Show the message dialog, and if it returns wxID_OK (ie they clicked on OK button)...
 113     if (msgDlg2.ShowModal() == wxID_OK)
 114     {
 115         // ...then end this Preferences dialog.
 116         EndModal( wxID_OK );
 117         // You could also have used event.Skip() which would then skip up
 118         // to the wxDialog's event table and see if there was a EVT_BUTTON
 119         // handler for wxID_OK and if there was, then execute that code.
 120     }
 121
 122     // Otherwise do nothing.
 123 }