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_CHECKED
  43     #define BST_CHECKED 0x0001
  44 #endif
  45
  46 // ============================================================================
  47 // implementation
  48 // ============================================================================
  49
  50 #if wxUSE_EXTENDED_RTTI
  51 IMPLEMENT_DYNAMIC_CLASS_XTI(wxCheckBox, wxControl,"wx/checkbox.h")
  52
  53 WX_BEGIN_PROPERTIES_TABLE(wxCheckBox)
  54         WX_DELEGATE( OnClick , wxEVT_COMMAND_CHECKBOX_CLICKED , wxCommandEvent )
  55
  56         WX_PROPERTY( Font , wxFont , SetFont , GetFont  , )
  57         WX_PROPERTY( Label,wxString, SetLabel, GetLabel, wxEmptyString )
  58         WX_PROPERTY( Value ,bool, SetValue, GetValue, )
  59 WX_END_PROPERTIES_TABLE()
  60
  61 WX_BEGIN_HANDLERS_TABLE(wxCheckBox)
  62 WX_END_HANDLERS_TABLE()
  63
  64 WX_CONSTRUCTOR_6( wxCheckBox , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
  65 #else
  66 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl)
  67 #endif
  68
  69
  70 // ----------------------------------------------------------------------------
  71 // wxCheckBox
  72 // ----------------------------------------------------------------------------
  73
  74 bool wxCheckBox::MSWCommand(WXUINT WXUNUSED(param), WXWORD WXUNUSED(id))
  75 {
  76     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, m_windowId);
  77     event.SetInt(GetValue());
  78     event.SetEventObject(this);
  79     ProcessCommand(event);
  80     return TRUE;
  81 }
  82
  83 bool wxCheckBox::Create(wxWindow *parent,
  84                         wxWindowID id,
  85                         const wxString& label,
  86                         const wxPoint& pos,
  87                         const wxSize& size, long style,
  88                         const wxValidator& validator,
  89                         const wxString& name)
  90 {
  91     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
  92         return FALSE;
  93
  94     long msStyle = BS_AUTOCHECKBOX | WS_TABSTOP;
  95     if ( style & wxALIGN_RIGHT )
  96         msStyle |= BS_LEFTTEXT;
  97
  98     return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, 0);
  99 }
 100
 101 void wxCheckBox::SetLabel(const wxString& label)
 102 {
 103     SetWindowText(GetHwnd(), label);
 104 }
 105
 106 wxSize wxCheckBox::DoGetBestSize() const
 107 {
 108     static int s_checkSize = 0;
 109
 110     if ( !s_checkSize )
 111     {
 112         wxScreenDC dc;
 113         dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 114
 115         s_checkSize = dc.GetCharHeight();
 116     }
 117
 118     wxString str = wxGetWindowText(GetHWND());
 119
 120     int wCheckbox, hCheckbox;
 121     if ( !str.IsEmpty() )
 122     {
 123         GetTextExtent(str, &wCheckbox, &hCheckbox);
 124         wCheckbox += s_checkSize + GetCharWidth();
 125
 126         if ( hCheckbox < s_checkSize )
 127             hCheckbox = s_checkSize;
 128     }
 129     else
 130     {
 131         wCheckbox = s_checkSize;
 132         hCheckbox = s_checkSize;
 133     }
 134
 135     return wxSize(wCheckbox, hCheckbox);
 136 }
 137
 138 void wxCheckBox::SetValue(bool val)
 139 {
 140     SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
 141 }
 142
 143 bool wxCheckBox::GetValue() const
 144 {
 145     return (SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) & BST_CHECKED) != 0;
 146 }
 147
 148 void wxCheckBox::Command(wxCommandEvent& event)
 149 {
 150     SetValue(event.GetInt() != 0);
 151     ProcessCommand(event);
 152 }
 153
 154 #endif // wxUSE_CHECKBOX