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