src/msw/checkbox.cpp

   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