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 // RCS-ID: $Id: tglbtn.cpp 41632 2006-10-04 23:02:13Z VZ $
10 // Copyright: (c) 2000 Johnny C. Norris II
11 // License: wxWindows licence
12 /////////////////////////////////////////////////////////////////////////////
13
14 // ============================================================================
15 // declarations
16 // ============================================================================
17
18 // ----------------------------------------------------------------------------
19 // headers
20 // ----------------------------------------------------------------------------
21
22 #include "wx/wxprec.h"
23
24 #ifdef __BORLANDC__
25 #pragma hdrstop
26 #endif
27
28 #if wxUSE_TOGGLEBTN
29
30 #include "wx/tglbtn.h"
31
32 #ifndef WX_PRECOMP
33 #include "wx/button.h"
34 #include "wx/brush.h"
35 #include "wx/dcscreen.h"
36 #include "wx/settings.h"
37
38 #include "wx/log.h"
39 #endif // WX_PRECOMP
40
41 #include "wx/msw/private.h"
42
43 // ----------------------------------------------------------------------------
44 // macros
45 // ----------------------------------------------------------------------------
46
IMPLEMENT_DYNAMIC_CLASS(wxToggleButton,wxControl)47 IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
48 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED)
49
50 #define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
51
52 // ============================================================================
53 // implementation
54 // ============================================================================
55
56 // ----------------------------------------------------------------------------
57 // wxToggleButton
58 // ----------------------------------------------------------------------------
59
60 bool wxToggleButton::MSWCommand(WXUINT WXUNUSED(param), WXWORD WXUNUSED(id))
61 {
62 wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, m_windowId);
63 event.SetInt(GetValue());
64 event.SetEventObject(this);
65 ProcessCommand(event);
66 return true;
67 }
68
69 // 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)70 bool wxToggleButton::Create(wxWindow *parent, wxWindowID id,
71 const wxString& label,
72 const wxPoint& pos,
73 const wxSize& size, long style,
74 const wxValidator& validator,
75 const wxString& name)
76 {
77 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
78 return false;
79
80 if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) )
81 return false;
82
83 return true;
84 }
85
GetDefaultBorder() const86 wxBorder wxToggleButton::GetDefaultBorder() const
87 {
88 return wxBORDER_NONE;
89 }
90
MSWGetStyle(long style,WXDWORD * exstyle) const91 WXDWORD wxToggleButton::MSWGetStyle(long style, WXDWORD *exstyle) const
92 {
93 WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
94
95 #ifndef BS_PUSHLIKE
96 #define BS_PUSHLIKE 0x00001000L
97 #endif
98
99 msStyle |= BS_AUTOCHECKBOX | BS_PUSHLIKE | WS_TABSTOP;
100
101 if(style & wxBU_LEFT)
102 msStyle |= BS_LEFT;
103 if(style & wxBU_RIGHT)
104 msStyle |= BS_RIGHT;
105 if(style & wxBU_TOP)
106 msStyle |= BS_TOP;
107 if(style & wxBU_BOTTOM)
108 msStyle |= BS_BOTTOM;
109
110 return msStyle;
111 }
112
DoGetBestSize() const113 wxSize wxToggleButton::DoGetBestSize() const
114 {
115 wxString label = wxGetWindowText(GetHWND());
116 int wBtn;
117 GetTextExtent(GetLabelText(label), &wBtn, NULL);
118
119 int wChar, hChar;
120 wxGetCharSize(GetHWND(), &wChar, &hChar, GetFont());
121
122 // add a margin - the button is wider than just its label
123 wBtn += 3*wChar;
124
125 // the button height is proportional to the height of the font used
126 int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar);
127
128 #if wxUSE_BUTTON
129 // make all buttons of at least standard size unless wxBU_EXACTFIT is given
130 if ( !HasFlag(wxBU_EXACTFIT) )
131 {
132 const wxSize szMin = wxButton::GetDefaultSize();
133 if ( wBtn < szMin.x )
134 wBtn = szMin.x;
135 if ( hBtn < szMin.y )
136 hBtn = szMin.y;
137 }
138 #endif // wxUSE_BUTTON
139
140 wxSize sz(wBtn, hBtn);
141
142 CacheBestSize(sz);
143 return sz;
144 }
145
SetValue(bool val)146 void wxToggleButton::SetValue(bool val)
147 {
148 ::SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
149 }
150
151 #ifndef BST_CHECKED
152 #define BST_CHECKED 0x0001
153 #endif
154
GetValue() const155 bool wxToggleButton::GetValue() const
156 {
157 #ifdef __WIN32__
158 return (::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED);
159 #else
160 return ((0x001 & ::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0)) == 0x001);
161 #endif
162 }
163
Command(wxCommandEvent & event)164 void wxToggleButton::Command(wxCommandEvent & event)
165 {
166 SetValue((event.GetInt() != 0));
167 ProcessCommand(event);
168 }
169
170 #endif // wxUSE_TOGGLEBTN
171