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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: panelg.cpp
3 // Purpose: wxPanel
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart and Markus Holzem
9 // Licence: wxWindows license
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifdef __GNUG__
13 #pragma implementation "panelg.h"
14 #endif
15
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
18
19 #ifdef __BORLANDC__
20 #pragma hdrstop
21 #endif
22
23 #ifndef WX_PRECOMP
24 #include "wx/object.h"
25 #include "wx/font.h"
26 #include "wx/colour.h"
27 #include "wx/settings.h"
28 #endif
29
30 #include "wx/generic/panelg.h"
31
32 #if !USE_SHARED_LIBRARY
33 IMPLEMENT_DYNAMIC_CLASS(wxPanel, wxWindow)
34
35 BEGIN_EVENT_TABLE(wxPanel, wxWindow)
36 EVT_SYS_COLOUR_CHANGED(wxPanel::OnSysColourChanged)
37 EVT_SET_FOCUS(wxPanel::OnFocus)
38 EVT_NAVIGATION_KEY(wxPanel::OnNavigationKey)
39 END_EVENT_TABLE()
40
41 #endif
42
43 wxPanel::wxPanel()
44 {
45 m_lastFocus = NULL;
46 }
47
48 bool wxPanel::Create(wxWindow *parent, wxWindowID id,
49 const wxPoint& pos,
50 const wxSize& size,
51 long style,
52 const wxString& name)
53 {
54 m_lastFocus = NULL;
55
56 bool ret = wxWindow::Create(parent, id, pos, size, style, name);
57
58 if ( ret )
59 {
60 #ifndef __WXGTK__
61 SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
62 SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
63 #endif
64 }
65
66 return ret;
67 }
68
69 void wxPanel::InitDialog(void)
70 {
71 wxInitDialogEvent event(GetId());
72 event.SetEventObject(this);
73 GetEventHandler()->ProcessEvent(event);
74 }
75
76 // Responds to colour changes, and passes event on to children.
77 void wxPanel::OnSysColourChanged(wxSysColourChangedEvent& event)
78 {
79 SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
80 Refresh();
81
82 // Propagate the event to the non-top-level children
83 wxWindow::OnSysColourChanged(event);
84 }
85
86 void wxPanel::OnNavigationKey( wxNavigationKeyEvent& event )
87 {
88 // there is not much to do if we have only one child (or not at all)
89 if (GetChildren().GetCount() < 2)
90 {
91 event.Skip();
92 return;
93 }
94
95 // don't process these ones here
96 if (event.IsWindowChange())
97 {
98 event.Skip();
99 return;
100 }
101
102 wxWindow *winFocus = event.GetCurrentFocus();
103 if (!winFocus)
104 winFocus = wxWindow::FindFocus();
105
106 if (!winFocus)
107 {
108 event.Skip();
109 return;
110 }
111
112 wxNode *start_node = GetChildren().Find( winFocus );
113 if (!start_node)
114 start_node = GetChildren().First();
115
116 wxNode *node = event.GetDirection() ? start_node->Next()
117 : start_node->Previous();
118
119 while (node != start_node)
120 {
121 if (!node)
122 {
123 node = event.GetDirection() ? GetChildren().First()
124 : GetChildren().Last();
125
126 continue;
127 }
128
129 wxWindow *child = (wxWindow *)node->Data();
130
131 if (child->AcceptsFocus())
132 {
133 // ok, event processed
134 child->SetFocus();
135 return;
136 }
137
138 node = event.GetDirection() ? node->Next() : node->Previous();
139 }
140
141 // we cycled through all of our children and none of them wanted to accept
142 // focus
143 event.Skip();
144 }
145
146 void wxPanel::OnFocus(wxFocusEvent& event)
147 {
148 if ( m_lastFocus )
149 m_lastFocus->SetFocus();
150 else
151 event.Skip();
152 }