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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 | wxBorder wxToggleButton::GetDefaultBorder() const | |
87 | { | |
88 | return wxBORDER_NONE; | |
89 | } | |
90 | ||
91 | 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 | ||
113 | 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 | ||
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 | ||
155 | 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 | ||
164 | void wxToggleButton::Command(wxCommandEvent & event) | |
165 | { | |
166 | SetValue((event.GetInt() != 0)); | |
167 | ProcessCommand(event); | |
168 | } | |
169 | ||
170 | #endif // wxUSE_TOGGLEBTN |