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check the validity of wxString pointer itself too
[wxWidgets.git] / src / xrc / xh_wizrd.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: xh_wizrd.cpp
3 // Purpose: XRC resource for wxWizard
4 // Author: Vaclav Slavik
5 // Created: 2003/03/01
6 // RCS-ID: $Id$
7 // Copyright: (c) 2000 Vaclav Slavik
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
12 #pragma implementation "xh_wizrd.h"
13 #endif
14
15 // For compilers that support precompilation, includes "wx.h".
16 #include "wx/wxprec.h"
17
18 #ifdef __BORLANDC__
19 #pragma hdrstop
20 #endif
21
22 #if wxUSE_XRC && wxUSE_WIZARDDLG
23
24 #include "wx/xrc/xh_wizrd.h"
25 #include "wx/log.h"
26 #include "wx/wizard.h"
27
28 IMPLEMENT_DYNAMIC_CLASS(wxWizardXmlHandler, wxXmlResourceHandler)
29
30 wxWizardXmlHandler::wxWizardXmlHandler() : wxXmlResourceHandler()
31 {
32 m_wizard = NULL;
33 m_lastSimplePage = NULL;
34 XRC_ADD_STYLE(wxWIZARD_EX_HELPBUTTON);
35 AddWindowStyles();
36 }
37
38 wxObject *wxWizardXmlHandler::DoCreateResource()
39 {
40 if (m_class == wxT("wxWizard"))
41 {
42 XRC_MAKE_INSTANCE(wiz, wxWizard)
43
44 long style = GetStyle(wxT("exstyle"), 0);
45 if (style != 0)
46 wiz->SetExtraStyle(style);
47 wiz->Create(m_parentAsWindow,
48 GetID(),
49 GetText(wxT("title")),
50 GetBitmap(),
51 GetPosition());
52
53 wxWizard *old = m_wizard;
54 m_wizard = wiz;
55 m_lastSimplePage = NULL;
56 CreateChildren(wiz, true /*this handler only*/);
57 m_wizard = old;
58 return wiz;
59 }
60 else
61 {
62 wxWizardPage *page = NULL;
63 wxUnusedVar(page);
64
65 if (m_class == wxT("wxWizardPageSimple"))
66 {
67 XRC_MAKE_INSTANCE(p, wxWizardPageSimple)
68 p->Create(m_wizard, NULL, NULL, GetBitmap());
69 if (m_lastSimplePage)
70 wxWizardPageSimple::Chain(m_lastSimplePage, p);
71 page = p;
72 m_lastSimplePage = p;
73 }
74 else /*if (m_class == wxT("wxWizardPage"))*/
75 {
76 wxWizardPage *p = NULL;
77 if (m_instance)
78 p = wxStaticCast(m_instance, wxWizardPage);
79 else
80 wxLogError(wxT("wxWizardPage is abstract class, must be subclassed"));
81 p->Create(m_wizard, GetBitmap());
82 page = p;
83 }
84
85 page->SetName(GetName());
86 page->SetId(GetID());
87
88 SetupWindow(page);
89 CreateChildren(page);
90 return page;
91 }
92 }
93
94 bool wxWizardXmlHandler::CanHandle(wxXmlNode *node)
95 {
96 return IsOfClass(node, wxT("wxWizard")) ||
97 (m_wizard != NULL &&
98 (IsOfClass(node, wxT("wxWizardPage")) ||
99 IsOfClass(node, wxT("wxWizardPageSimple")))
100 );
101 }
102
103 #endif // wxUSE_XRC && wxUSE_WIZARDDLG