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remove always-true tests of unsigned >= 0
[wxWidgets.git] / src / generic / panelg.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/generic/panelg.cpp
3 // Purpose: wxPanel and the keyboard handling code
4 // Author: Julian Smart, Robert Roebling, Vadim Zeitlin
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #ifndef WX_PRECOMP
28 #include "wx/object.h"
29 #include "wx/font.h"
30 #include "wx/colour.h"
31 #include "wx/settings.h"
32 #include "wx/log.h"
33 #include "wx/panel.h"
34 #include "wx/containr.h"
35 #endif
36
37 // ----------------------------------------------------------------------------
38 // wxWin macros
39 // ----------------------------------------------------------------------------
40
41 BEGIN_EVENT_TABLE(wxPanel, wxWindow)
42 WX_EVENT_TABLE_CONTROL_CONTAINER(wxPanel)
43 END_EVENT_TABLE()
44
45 // ============================================================================
46 // implementation
47 // ============================================================================
48
49 WX_DELEGATE_TO_CONTROL_CONTAINER(wxPanel, wxWindow)
50
51 // ----------------------------------------------------------------------------
52 // wxPanel creation
53 // ----------------------------------------------------------------------------
54
55 void wxPanel::Init()
56 {
57 WX_INIT_CONTROL_CONTAINER();
58 }
59
60 bool wxPanel::Create(wxWindow *parent, wxWindowID id,
61 const wxPoint& pos,
62 const wxSize& size,
63 long style,
64 const wxString& name)
65 {
66 if ( !wxWindow::Create(parent, id, pos, size, style, name) )
67 return false;
68
69 // so that non-solid background renders correctly under GTK+:
70 SetThemeEnabled(true);
71
72 #if defined(__WXWINCE__) && (defined(__POCKETPC__) || defined(__SMARTPHONE__))
73 // Required to get solid control backgrounds under WinCE
74 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
75 #endif
76
77 return true;
78 }
79
80 wxPanel::~wxPanel()
81 {
82 }
83
84 void wxPanel::InitDialog()
85 {
86 wxInitDialogEvent event(GetId());
87 event.SetEventObject(this);
88 GetEventHandler()->ProcessEvent(event);
89 }
90
91 #ifdef __WXMSW__
92
93 bool wxPanel::HasTransparentBackground()
94 {
95 for ( wxWindow *win = GetParent(); win; win = win->GetParent() )
96 {
97 if ( win->MSWHasInheritableBackground() )
98 return true;
99
100 if ( win->IsTopLevel() )
101 break;
102 }
103
104 return false;
105 }
106
107 #endif // __WXMSW__