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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: msw/checkbox.cpp | |
3 | // Purpose: wxCheckBox | |
4 | // Author: Julian Smart | |
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 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) | |
21 | #pragma implementation "checkbox.h" | |
22 | #endif | |
23 | ||
24 | // For compilers that support precompilation, includes "wx.h". | |
25 | #include "wx/wxprec.h" | |
26 | ||
27 | #ifdef __BORLANDC__ | |
28 | #pragma hdrstop | |
29 | #endif | |
30 | ||
31 | #if wxUSE_CHECKBOX | |
32 | ||
33 | #ifndef WX_PRECOMP | |
34 | #include "wx/checkbox.h" | |
35 | #include "wx/brush.h" | |
36 | #include "wx/dcscreen.h" | |
37 | #include "wx/settings.h" | |
38 | #endif | |
39 | ||
40 | #include "wx/msw/private.h" | |
41 | ||
42 | #ifndef BST_UNCHECKED | |
43 | #define BST_UNCHECKED 0x0000 | |
44 | #endif | |
45 | ||
46 | #ifndef BST_CHECKED | |
47 | #define BST_CHECKED 0x0001 | |
48 | #endif | |
49 | ||
50 | #ifndef BST_INDETERMINATE | |
51 | #define BST_INDETERMINATE 0x0002 | |
52 | #endif | |
53 | ||
54 | // ============================================================================ | |
55 | // implementation | |
56 | // ============================================================================ | |
57 | ||
58 | #if wxUSE_EXTENDED_RTTI | |
59 | WX_DEFINE_FLAGS( wxCheckBoxStyle ) | |
60 | ||
61 | wxBEGIN_FLAGS( wxCheckBoxStyle ) | |
62 | // new style border flags, we put them first to | |
63 | // use them for streaming out | |
64 | wxFLAGS_MEMBER(wxBORDER_SIMPLE) | |
65 | wxFLAGS_MEMBER(wxBORDER_SUNKEN) | |
66 | wxFLAGS_MEMBER(wxBORDER_DOUBLE) | |
67 | wxFLAGS_MEMBER(wxBORDER_RAISED) | |
68 | wxFLAGS_MEMBER(wxBORDER_STATIC) | |
69 | wxFLAGS_MEMBER(wxBORDER_NONE) | |
70 | ||
71 | // old style border flags | |
72 | wxFLAGS_MEMBER(wxSIMPLE_BORDER) | |
73 | wxFLAGS_MEMBER(wxSUNKEN_BORDER) | |
74 | wxFLAGS_MEMBER(wxDOUBLE_BORDER) | |
75 | wxFLAGS_MEMBER(wxRAISED_BORDER) | |
76 | wxFLAGS_MEMBER(wxSTATIC_BORDER) | |
77 | wxFLAGS_MEMBER(wxNO_BORDER) | |
78 | ||
79 | // standard window styles | |
80 | wxFLAGS_MEMBER(wxTAB_TRAVERSAL) | |
81 | wxFLAGS_MEMBER(wxCLIP_CHILDREN) | |
82 | wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW) | |
83 | wxFLAGS_MEMBER(wxWANTS_CHARS) | |
84 | wxFLAGS_MEMBER(wxNO_FULL_REPAINT_ON_RESIZE) | |
85 | wxFLAGS_MEMBER(wxALWAYS_SHOW_SB ) | |
86 | wxFLAGS_MEMBER(wxVSCROLL) | |
87 | wxFLAGS_MEMBER(wxHSCROLL) | |
88 | ||
89 | wxEND_FLAGS( wxCheckBoxStyle ) | |
90 | ||
91 | IMPLEMENT_DYNAMIC_CLASS_XTI(wxCheckBox, wxControl,"wx/checkbox.h") | |
92 | ||
93 | wxBEGIN_PROPERTIES_TABLE(wxCheckBox) | |
94 | wxEVENT_PROPERTY( Click , wxEVT_COMMAND_CHECKBOX_CLICKED , wxCommandEvent ) | |
95 | ||
96 | wxPROPERTY( Font , wxFont , SetFont , GetFont , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) | |
97 | wxPROPERTY( Label,wxString, SetLabel, GetLabel, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) | |
98 | wxPROPERTY( Value ,bool, SetValue, GetValue, , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) | |
99 | wxPROPERTY_FLAGS( WindowStyle , wxCheckBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style | |
100 | wxEND_PROPERTIES_TABLE() | |
101 | ||
102 | wxBEGIN_HANDLERS_TABLE(wxCheckBox) | |
103 | wxEND_HANDLERS_TABLE() | |
104 | ||
105 | wxCONSTRUCTOR_6( wxCheckBox , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle ) | |
106 | #else | |
107 | IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl) | |
108 | #endif | |
109 | ||
110 | ||
111 | // ---------------------------------------------------------------------------- | |
112 | // wxCheckBox | |
113 | // ---------------------------------------------------------------------------- | |
114 | ||
115 | bool wxCheckBox::MSWCommand(WXUINT WXUNUSED(param), WXWORD WXUNUSED(id)) | |
116 | { | |
117 | wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, m_windowId); | |
118 | wxCheckBoxState state = Get3StateValue(); | |
119 | ||
120 | // If the style flag to allow the user setting the undetermined state | |
121 | // is not set, then skip the undetermined state and set it to unchecked. | |
122 | if ( state == wxCHK_UNDETERMINED && !Is3rdStateAllowedForUser() ) | |
123 | { | |
124 | state = wxCHK_UNCHECKED; | |
125 | Set3StateValue(state); | |
126 | } | |
127 | ||
128 | event.SetInt(state); | |
129 | event.SetEventObject(this); | |
130 | ProcessCommand(event); | |
131 | ||
132 | return TRUE; | |
133 | } | |
134 | ||
135 | bool wxCheckBox::Create(wxWindow *parent, | |
136 | wxWindowID id, | |
137 | const wxString& label, | |
138 | const wxPoint& pos, | |
139 | const wxSize& size, long style, | |
140 | const wxValidator& validator, | |
141 | const wxString& name) | |
142 | { | |
143 | if ( !CreateControl(parent, id, pos, size, style, validator, name) ) | |
144 | return FALSE; | |
145 | ||
146 | long msStyle = WS_TABSTOP; | |
147 | ||
148 | if ( style & wxCHK_3STATE ) | |
149 | { | |
150 | msStyle |= BS_AUTO3STATE; | |
151 | } | |
152 | else | |
153 | { | |
154 | wxASSERT_MSG( !Is3rdStateAllowedForUser(), | |
155 | wxT("Using wxCH_ALLOW_3RD_STATE_FOR_USER") | |
156 | wxT(" style flag for a 2-state checkbox is useless") ); | |
157 | msStyle |= BS_AUTOCHECKBOX; | |
158 | } | |
159 | ||
160 | if ( style & wxALIGN_RIGHT ) | |
161 | { | |
162 | msStyle |= BS_LEFTTEXT; | |
163 | } | |
164 | ||
165 | return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, 0); | |
166 | } | |
167 | ||
168 | void wxCheckBox::SetLabel(const wxString& label) | |
169 | { | |
170 | SetWindowText(GetHwnd(), label); | |
171 | } | |
172 | ||
173 | wxSize wxCheckBox::DoGetBestSize() const | |
174 | { | |
175 | static int s_checkSize = 0; | |
176 | ||
177 | if ( !s_checkSize ) | |
178 | { | |
179 | wxScreenDC dc; | |
180 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); | |
181 | ||
182 | s_checkSize = dc.GetCharHeight(); | |
183 | } | |
184 | ||
185 | wxString str = wxGetWindowText(GetHWND()); | |
186 | ||
187 | int wCheckbox, hCheckbox; | |
188 | if ( !str.IsEmpty() ) | |
189 | { | |
190 | GetTextExtent(str, &wCheckbox, &hCheckbox); | |
191 | wCheckbox += s_checkSize + GetCharWidth(); | |
192 | ||
193 | if ( hCheckbox < s_checkSize ) | |
194 | hCheckbox = s_checkSize; | |
195 | } | |
196 | else | |
197 | { | |
198 | wCheckbox = s_checkSize; | |
199 | hCheckbox = s_checkSize; | |
200 | } | |
201 | ||
202 | return wxSize(wCheckbox, hCheckbox); | |
203 | } | |
204 | ||
205 | void wxCheckBox::SetValue(bool val) | |
206 | { | |
207 | if (val) | |
208 | { | |
209 | Set3StateValue(wxCHK_CHECKED); | |
210 | } | |
211 | else | |
212 | { | |
213 | Set3StateValue(wxCHK_UNCHECKED); | |
214 | } | |
215 | } | |
216 | ||
217 | bool wxCheckBox::GetValue() const | |
218 | { | |
219 | return (Get3StateValue() != 0); | |
220 | } | |
221 | ||
222 | void wxCheckBox::Command(wxCommandEvent& event) | |
223 | { | |
224 | int state = event.GetInt(); | |
225 | wxCHECK_RET( (state == wxCHK_UNCHECKED) || (state == wxCHK_CHECKED) | |
226 | || (state == wxCHK_UNDETERMINED), | |
227 | wxT("event.GetInt() returned an invalid checkbox state") ); | |
228 | ||
229 | Set3StateValue((wxCheckBoxState) state); | |
230 | ProcessCommand(event); | |
231 | } | |
232 | ||
233 | wxCOMPILE_TIME_ASSERT(wxCHK_UNCHECKED == BST_UNCHECKED | |
234 | && wxCHK_CHECKED == BST_CHECKED | |
235 | && wxCHK_UNDETERMINED == BST_INDETERMINATE, EnumValuesIncorrect); | |
236 | ||
237 | void wxCheckBox::DoSet3StateValue(wxCheckBoxState state) | |
238 | { | |
239 | ::SendMessage(GetHwnd(), BM_SETCHECK, (WPARAM) state, 0); | |
240 | } | |
241 | ||
242 | wxCheckBoxState wxCheckBox::DoGet3StateValue() const | |
243 | { | |
244 | #ifdef __WIN32__ | |
245 | return (wxCheckBoxState) ::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0); | |
246 | #else | |
247 | return (wxCheckBoxState) ((::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) | |
248 | & 0x001) == 0x001); | |
249 | #endif | |
250 | ||
251 | } | |
252 | ||
253 | #endif // wxUSE_CHECKBOX |