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added possibility to throw different objects and crash directly from the main frame...
[wxWidgets.git] / src / msw / radiobut.cpp
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2bda0e17 1/////////////////////////////////////////////////////////////////////////////
1e6feb95 2// Name: msw/radiobut.cpp
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3// Purpose: wxRadioButton
4// Author: Julian Smart
5// Modified by:
6// Created: 04/01/98
7// RCS-ID: $Id$
6c9a19aa 8// Copyright: (c) Julian Smart
65571936 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
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12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
14f355c2 20#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
f607434a 21 #pragma implementation "radiobut.h"
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22#endif
23
24// For compilers that support precompilation, includes "wx.h".
25#include "wx/wxprec.h"
26
27#ifdef __BORLANDC__
f607434a 28 #pragma hdrstop
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29#endif
30
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31#if wxUSE_RADIOBTN
32
2bda0e17 33#ifndef WX_PRECOMP
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34 #include "wx/radiobut.h"
35 #include "wx/settings.h"
36 #include "wx/dcscreen.h"
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37#endif
38
39#include "wx/msw/private.h"
40
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41// ============================================================================
42// wxRadioButton implementation
43// ============================================================================
44
45// ----------------------------------------------------------------------------
46// wxRadioButton creation
47// ----------------------------------------------------------------------------
48
2bda0e17 49
51741307 50#if wxUSE_EXTENDED_RTTI
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51WX_DEFINE_FLAGS( wxRadioButtonStyle )
52
3ff066a4 53wxBEGIN_FLAGS( wxRadioButtonStyle )
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54 // new style border flags, we put them first to
55 // use them for streaming out
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56 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
57 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
58 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
59 wxFLAGS_MEMBER(wxBORDER_RAISED)
60 wxFLAGS_MEMBER(wxBORDER_STATIC)
61 wxFLAGS_MEMBER(wxBORDER_NONE)
4d08943e 62
bc9fb572 63 // old style border flags
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64 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
65 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
66 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
67 wxFLAGS_MEMBER(wxRAISED_BORDER)
68 wxFLAGS_MEMBER(wxSTATIC_BORDER)
cb0afb26 69 wxFLAGS_MEMBER(wxBORDER)
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70
71 // standard window styles
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72 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
73 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
74 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
75 wxFLAGS_MEMBER(wxWANTS_CHARS)
cb0afb26 76 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
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77 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
78 wxFLAGS_MEMBER(wxVSCROLL)
79 wxFLAGS_MEMBER(wxHSCROLL)
bc9fb572 80
3ff066a4 81 wxFLAGS_MEMBER(wxRB_GROUP)
bc9fb572 82
3ff066a4 83wxEND_FLAGS( wxRadioButtonStyle )
bc9fb572 84
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85IMPLEMENT_DYNAMIC_CLASS_XTI(wxRadioButton, wxControl,"wx/radiobut.h")
86
3ff066a4 87wxBEGIN_PROPERTIES_TABLE(wxRadioButton)
f607434a 88 wxEVENT_PROPERTY( Click , wxEVT_COMMAND_RADIOBUTTON_SELECTED , wxCommandEvent )
af498247 89 wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
f607434a 90 wxPROPERTY( Label,wxString, SetLabel, GetLabel, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
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91 wxPROPERTY( Value ,bool, SetValue, GetValue, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
92 wxPROPERTY_FLAGS( WindowStyle , wxRadioButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
3ff066a4 93wxEND_PROPERTIES_TABLE()
51741307 94
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95wxBEGIN_HANDLERS_TABLE(wxRadioButton)
96wxEND_HANDLERS_TABLE()
51741307 97
4d08943e 98wxCONSTRUCTOR_6( wxRadioButton , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
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99
100#else
101IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
102#endif
066f1b7a 103
066f1b7a 104
5f199b71 105void wxRadioButton::Init()
621793f4 106{
f607434a 107 m_isChecked = false;
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108}
109
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110bool wxRadioButton::Create(wxWindow *parent,
111 wxWindowID id,
112 const wxString& label,
113 const wxPoint& pos,
114 const wxSize& size,
115 long style,
116 const wxValidator& validator,
117 const wxString& name)
2bda0e17 118{
5f199b71 119 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
f607434a 120 return false;
2bda0e17 121
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122 long msStyle = WS_TABSTOP;
123 if ( HasFlag(wxRB_GROUP) )
124 msStyle |= WS_GROUP;
125
126 /*
127 wxRB_SINGLE is a temporary workaround for the following problem: if you
128 have 2 radiobuttons in the same group but which are not consecutive in
129 the dialog, Windows can enter an infinite loop! The simplest way to
130 reproduce it is to create radio button, then a panel and then another
131 radio button: then checking the last button hangs the app.
2bda0e17 132
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133 Ideally, we'd detect (and avoid) such situation automatically but for
134 now, as I don't know how to do it, just allow the user to create
135 BS_RADIOBUTTON buttons for such situations.
136 */
137 msStyle |= HasFlag(wxRB_SINGLE) ? BS_RADIOBUTTON : BS_AUTORADIOBUTTON;
2bda0e17 138
5f199b71 139 if ( HasFlag(wxCLIP_SIBLINGS) )
b0766406 140 msStyle |= WS_CLIPSIBLINGS;
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141 if ( HasFlag(wxALIGN_RIGHT) )
142 msStyle |= BS_LEFTTEXT | BS_RIGHT;
b0766406 143
5f199b71 144 if ( !MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, 0) )
f607434a 145 return false;
b0766406 146
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147 // for compatibility with wxGTK, the first radio button in a group is
148 // always checked (this makes sense anyhow as you need to ensure that at
149 // least one button in the group is checked and this is the simlpest way to
150 // do it)
151 if ( HasFlag(wxRB_GROUP) )
f607434a 152 SetValue(true);
c085e333 153
f607434a 154 return true;
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155}
156
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157// ----------------------------------------------------------------------------
158// wxRadioButton functions
159// ----------------------------------------------------------------------------
2bda0e17 160
5f199b71 161void wxRadioButton::SetValue(bool value)
2bda0e17 162{
3a5bcc4d 163 (void)::SendMessage(GetHwnd(), BM_SETCHECK, (value?BST_CHECKED:BST_UNCHECKED), 0L);
2b5f62a0 164
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165 m_isChecked = value;
166
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167 // if we set the value of one radio button we also must clear all the other
168 // buttons in the same group: Windows doesn't do it automatically
f607434a 169 if ( m_isChecked )
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170 {
171 const wxWindowList& siblings = GetParent()->GetChildren();
222ed1d6 172 wxWindowList::compatibility_iterator nodeThis = siblings.Find(this);
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173 wxCHECK_RET( nodeThis, _T("radio button not a child of its parent?") );
174
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175 // if it's not the first item of the group ...
176 if ( !HasFlag(wxRB_GROUP) )
2b5f62a0 177 {
2b17e391 178 // ... turn off all radio buttons before it
222ed1d6 179 for ( wxWindowList::compatibility_iterator nodeBefore = nodeThis->GetPrevious();
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180 nodeBefore;
181 nodeBefore = nodeBefore->GetPrevious() )
2b5f62a0 182 {
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183 wxRadioButton *btn = wxDynamicCast(nodeBefore->GetData(),
184 wxRadioButton);
c5b3143a 185 if ( btn && btn->HasFlag(wxRB_SINGLE) )
2b17e391 186 {
c5b3143a 187 // A wxRB_SINGLE button isn't part of this group
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188 break;
189 }
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190
191 if (btn)
2b17e391 192 {
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193 btn->SetValue(false);
194
195 if ( btn->HasFlag(wxRB_GROUP) )
196 {
197 // even if there are other radio buttons before this one,
198 // they're not in the same group with us
199 break;
200 }
2b17e391 201 }
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202 }
203 }
204
2b17e391 205 // ... and also turn off all buttons after this one
222ed1d6 206 for ( wxWindowList::compatibility_iterator nodeAfter = nodeThis->GetNext();
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207 nodeAfter;
208 nodeAfter = nodeAfter->GetNext() )
209 {
210 wxRadioButton *btn = wxDynamicCast(nodeAfter->GetData(),
211 wxRadioButton);
212
c5b3143a 213 if ( btn && (btn->HasFlag(wxRB_GROUP) || btn->HasFlag(wxRB_SINGLE) ) )
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214 {
215 // no more buttons or the first button of the next group
216 break;
217 }
218
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219 if (btn)
220 btn->SetValue(false);
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221 }
222 }
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223}
224
5f199b71 225bool wxRadioButton::GetValue() const
2bda0e17 226{
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227 wxASSERT_MSG( m_isChecked ==
228 (::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0L) != 0),
229 _T("wxRadioButton::m_isChecked is out of sync?") );
230
231 return m_isChecked;
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232}
233
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234// ----------------------------------------------------------------------------
235// wxRadioButton event processing
236// ----------------------------------------------------------------------------
237
238void wxRadioButton::Command (wxCommandEvent& event)
2bda0e17 239{
687706f5 240 SetValue(event.GetInt() != 0);
5f199b71 241 ProcessCommand(event);
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242}
243
5f199b71 244bool wxRadioButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
f6bcfd97 245{
5f199b71 246 if ( param != BN_CLICKED )
f607434a 247 return false;
5f199b71 248
f607434a 249 if ( !m_isChecked )
f6bcfd97 250 {
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251 // we have to do this for BS_RADIOBUTTON anyhow and, strangely enough,
252 // sometimes this is needed even for BS_AUTORADIOBUTTON (when we
253 // receive focus the button gets BN_CLICKED but stays unchecked!)
254 SetValue(true);
2b5f62a0 255
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256 wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, GetId());
257 event.SetEventObject( this );
f607434a 258 event.SetInt(true); // always checked
f6bcfd97 259
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260 ProcessCommand(event);
261 }
f6bcfd97 262
f607434a 263 return true;
f6bcfd97 264}
2bda0e17 265
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266// ----------------------------------------------------------------------------
267// wxRadioButton geometry
268// ----------------------------------------------------------------------------
269
270wxSize wxRadioButton::DoGetBestSize() const
2bda0e17 271{
5f199b71 272 static int s_radioSize = 0;
2bda0e17 273
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274 if ( !s_radioSize )
275 {
276 wxScreenDC dc;
277 dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
2bda0e17 278
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279 s_radioSize = dc.GetCharHeight();
280 }
2bda0e17 281
5f199b71 282 wxString str = GetLabel();
2bda0e17 283
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284 int wRadio, hRadio;
285 if ( !str.empty() )
286 {
287 GetTextExtent(str, &wRadio, &hRadio);
288 wRadio += s_radioSize + GetCharWidth();
2bda0e17 289
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290 if ( hRadio < s_radioSize )
291 hRadio = s_radioSize;
292 }
293 else
294 {
295 wRadio = s_radioSize;
296 hRadio = s_radioSize;
297 }
2bda0e17 298
5f199b71 299 return wxSize(wRadio, hRadio);
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300}
301
1e6feb95 302#endif // wxUSE_RADIOBTN
f607434a 303