1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/tglbtn.cpp
3 // Purpose: Definition of the wxToggleButton class, which implements a
4 // toggle button under wxMSW.
5 // Author: John Norris, minor changes by Axel Schlueter
6 // and William Gallafent.
7 // Modified by:
8 // Created: 08.02.01
9 // Copyright: (c) 2000 Johnny C. Norris II
10 // Licence: wxWindows licence
11 /////////////////////////////////////////////////////////////////////////////
12
13 // ============================================================================
14 // declarations
15 // ============================================================================
16
17 // ----------------------------------------------------------------------------
18 // headers
19 // ----------------------------------------------------------------------------
20
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #if wxUSE_TOGGLEBTN
28
29 #include "wx/tglbtn.h"
30
31 #ifndef WX_PRECOMP
32 #include "wx/button.h"
33 #include "wx/brush.h"
34 #include "wx/dcscreen.h"
35 #include "wx/settings.h"
36
37 #include "wx/log.h"
38 #endif // WX_PRECOMP
39
40 #include "wx/msw/private.h"
41 #include "wx/msw/private/button.h"
42
43 // ----------------------------------------------------------------------------
44 // macros
45 // ----------------------------------------------------------------------------
46
47 wxDEFINE_EVENT( wxEVT_TOGGLEBUTTON, wxCommandEvent );
48
49 // ============================================================================
50 // implementation
51 // ============================================================================
52
53 //-----------------------------------------------------------------------------
54 // wxBitmapToggleButton
55 //-----------------------------------------------------------------------------
56
IMPLEMENT_DYNAMIC_CLASS(wxBitmapToggleButton,wxToggleButton)57 IMPLEMENT_DYNAMIC_CLASS(wxBitmapToggleButton, wxToggleButton)
58
59 bool wxBitmapToggleButton::Create( wxWindow *parent, wxWindowID id,
60 const wxBitmap& label,const wxPoint& pos, const wxSize& size, long style,
61 const wxValidator& validator, const wxString& name )
62 {
63 if (!wxToggleButton::Create( parent, id, wxEmptyString, pos, size, style, validator, name ))
64 return false;
65
66 SetBitmap(label);
67
68 if (size.x == -1 || size.y == -1)
69 {
70 wxSize new_size = GetBestSize();
71 if (size.x != -1)
72 new_size.x = size.x;
73 if (size.y != -1)
74 new_size.y = size.y;
75 SetSize( new_size );
76 }
77
78 return true;
79 }
80
81
82 // ----------------------------------------------------------------------------
83 // wxToggleButton
84 // ----------------------------------------------------------------------------
85
IMPLEMENT_DYNAMIC_CLASS(wxToggleButton,wxControl)86 IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
87
88 void wxToggleButton::Init()
89 {
90 m_state = false;
91 }
92
93 // Single check box item
Create(wxWindow * parent,wxWindowID id,const wxString & label,const wxPoint & pos,const wxSize & size,long style,const wxValidator & validator,const wxString & name)94 bool wxToggleButton::Create(wxWindow *parent,
95 wxWindowID id,
96 const wxString& label,
97 const wxPoint& pos,
98 const wxSize& size, long style,
99 const wxValidator& validator,
100 const wxString& name)
101 {
102 Init();
103
104 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
105 return false;
106
107 // if the label contains several lines we must explicitly tell the button
108 // about it or it wouldn't draw it correctly ("\n"s would just appear as
109 // black boxes)
110 //
111 // NB: we do it here and not in MSWGetStyle() because we need the label
112 // value and the label is not set yet when MSWGetStyle() is called
113 WXDWORD exstyle;
114 WXDWORD msStyle = MSWGetStyle(style, &exstyle);
115 msStyle |= wxMSWButton::GetMultilineStyle(label);
116
117 return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, exstyle);
118 }
119
MSWGetStyle(long style,WXDWORD * exstyle) const120 WXDWORD wxToggleButton::MSWGetStyle(long style, WXDWORD *exstyle) const
121 {
122 WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
123
124 msStyle |= BS_AUTOCHECKBOX | BS_PUSHLIKE | WS_TABSTOP;
125
126 if ( style & wxBU_LEFT )
127 msStyle |= BS_LEFT;
128 if ( style & wxBU_RIGHT )
129 msStyle |= BS_RIGHT;
130 if ( style & wxBU_TOP )
131 msStyle |= BS_TOP;
132 if ( style & wxBU_BOTTOM )
133 msStyle |= BS_BOTTOM;
134
135 return msStyle;
136 }
137
SetValue(bool val)138 void wxToggleButton::SetValue(bool val)
139 {
140 m_state = val;
141 if ( IsOwnerDrawn() )
142 {
143 Refresh();
144 }
145 else
146 {
147 ::SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
148 }
149 }
150
GetValue() const151 bool wxToggleButton::GetValue() const
152 {
153 if ( IsOwnerDrawn() )
154 {
155 return m_state;
156 }
157 else
158 {
159 return ::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED;
160 }
161 }
162
Command(wxCommandEvent & event)163 void wxToggleButton::Command(wxCommandEvent& event)
164 {
165 SetValue(event.GetInt() != 0);
166 ProcessCommand(event);
167 }
168
MSWCommand(WXUINT param,WXWORD WXUNUSED (id))169 bool wxToggleButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
170 {
171 if ( param != BN_CLICKED && param != BN_DBLCLK )
172 return false;
173
174 // first update the value so that user event handler gets the new
175 // toggle button value
176
177 // ownerdrawn buttons don't manage their state themselves unlike usual
178 // auto checkboxes so do it ourselves in any case
179 m_state = !m_state;
180
181 wxCommandEvent event(wxEVT_TOGGLEBUTTON, m_windowId);
182 event.SetInt(GetValue());
183 event.SetEventObject(this);
184 ProcessCommand(event);
185 return true;
186 }
187
GetNormalState() const188 wxAnyButton::State wxToggleButton::GetNormalState() const
189 {
190 if ( GetValue() )
191 return State_Pressed;
192 else
193 return State_Normal;
194 }
195
196 #endif // wxUSE_TOGGLEBTN
197