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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: $Id$ | |
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 | ||
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 | |
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 | ||
86 | WXDWORD wxToggleButton::MSWGetStyle(long style, WXDWORD *exstyle) const | |
87 | { | |
88 | WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle); | |
89 | ||
90 | #ifndef BS_PUSHLIKE | |
91 | #define BS_PUSHLIKE 0x00001000L | |
92 | #endif | |
93 | ||
94 | msStyle |= BS_AUTOCHECKBOX | BS_PUSHLIKE | WS_TABSTOP; | |
95 | ||
96 | if(style & wxBU_LEFT) | |
97 | msStyle |= BS_LEFT; | |
98 | if(style & wxBU_RIGHT) | |
99 | msStyle |= BS_RIGHT; | |
100 | if(style & wxBU_TOP) | |
101 | msStyle |= BS_TOP; | |
102 | if(style & wxBU_BOTTOM) | |
103 | msStyle |= BS_BOTTOM; | |
104 | ||
105 | return msStyle; | |
106 | } | |
107 | ||
108 | wxSize wxToggleButton::DoGetBestSize() const | |
109 | { | |
110 | wxString label = wxGetWindowText(GetHWND()); | |
111 | int wBtn; | |
112 | GetTextExtent(GetLabelText(label), &wBtn, NULL); | |
113 | ||
114 | int wChar, hChar; | |
115 | wxGetCharSize(GetHWND(), &wChar, &hChar, GetFont()); | |
116 | ||
117 | // add a margin - the button is wider than just its label | |
118 | wBtn += 3*wChar; | |
119 | ||
120 | // the button height is proportional to the height of the font used | |
121 | int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar); | |
122 | ||
123 | #if wxUSE_BUTTON | |
124 | // make all buttons of at least standard size unless wxBU_EXACTFIT is given | |
125 | if ( !HasFlag(wxBU_EXACTFIT) ) | |
126 | { | |
127 | const wxSize szMin = wxButton::GetDefaultSize(); | |
128 | if ( wBtn < szMin.x ) | |
129 | wBtn = szMin.x; | |
130 | if ( hBtn < szMin.y ) | |
131 | hBtn = szMin.y; | |
132 | } | |
133 | #endif // wxUSE_BUTTON | |
134 | ||
135 | wxSize sz(wBtn, hBtn); | |
136 | ||
137 | CacheBestSize(sz); | |
138 | return sz; | |
139 | } | |
140 | ||
141 | void wxToggleButton::SetValue(bool val) | |
142 | { | |
143 | ::SendMessage(GetHwnd(), BM_SETCHECK, val, 0); | |
144 | } | |
145 | ||
146 | #ifndef BST_CHECKED | |
147 | #define BST_CHECKED 0x0001 | |
148 | #endif | |
149 | ||
150 | bool wxToggleButton::GetValue() const | |
151 | { | |
152 | #ifdef __WIN32__ | |
153 | return (::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED); | |
154 | #else | |
155 | return ((0x001 & ::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0)) == 0x001); | |
156 | #endif | |
157 | } | |
158 | ||
159 | void wxToggleButton::Command(wxCommandEvent & event) | |
160 | { | |
161 | SetValue((event.GetInt() != 0)); | |
162 | ProcessCommand(event); | |
163 | } | |
164 | ||
165 | #endif // wxUSE_TOGGLEBTN |