src/msw/checkbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  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 #ifndef WX_PRECOMP
  32     #include "wx/checkbox.h"
  33     #include "wx/brush.h"
  34 #endif
  35
  36 #include "wx/msw/private.h"
  37
  38 // ----------------------------------------------------------------------------
  39 // macros
  40 // ----------------------------------------------------------------------------
  41
  42 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl)
  43 IMPLEMENT_DYNAMIC_CLASS(wxBitmapCheckBox, wxCheckBox)
  44
  45 // ============================================================================
  46 // implementation
  47 // ============================================================================
  48
  49 // ----------------------------------------------------------------------------
  50 // wxCheckBox
  51 // ----------------------------------------------------------------------------
  52
  53 bool wxCheckBox::MSWCommand(WXUINT WXUNUSED(param), WXWORD WXUNUSED(id))
  54 {
  55     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, m_windowId);
  56     event.SetInt(GetValue());
  57     event.SetEventObject(this);
  58     ProcessCommand(event);
  59     return TRUE;
  60 }
  61
  62 // Single check box item
  63 bool wxCheckBox::Create(wxWindow *parent,
  64                         wxWindowID id,
  65                         const wxString& label,
  66                         const wxPoint& pos,
  67                         const wxSize& size, long style,
  68                         const wxValidator& validator,
  69                         const wxString& name)
  70 {
  71     SetName(name);
  72 #if wxUSE_VALIDATORS
  73     SetValidator(validator);
  74 #endif // wxUSE_VALIDATORS
  75     if (parent) parent->AddChild(this);
  76
  77     SetBackgroundColour(parent->GetBackgroundColour()) ;
  78     SetForegroundColour(parent->GetForegroundColour()) ;
  79
  80     m_windowStyle = style;
  81
  82     wxString Label = label;
  83     if (Label == wxT(""))
  84         Label = wxT(" "); // Apparently needed or checkbox won't show
  85
  86     if ( id == -1 )
  87         m_windowId = NewControlId();
  88     else
  89         m_windowId = id;
  90
  91     int x = pos.x;
  92     int y = pos.y;
  93     int width = size.x;
  94     int height = size.y;
  95
  96     long msStyle = BS_AUTOCHECKBOX | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
  97     if ( style & wxALIGN_RIGHT )
  98         msStyle |= BS_LEFTTEXT;
  99
 100     // We perhaps have different concepts of 3D here - a 3D border,
 101     // versus a 3D button.
 102     // So we only wish to give a border if this is specified
 103     // in the style.
 104     bool want3D;
 105     WXDWORD exStyle = Determine3DEffects(0, &want3D) ;
 106
 107     // Even with extended styles, need to combine with WS_BORDER
 108     // for them to look right.
 109     /*
 110        if ( want3D || wxStyleHasBorder(m_windowStyle) )
 111        msStyle |= WS_BORDER;
 112      */
 113
 114     m_hWnd = (WXHWND)CreateWindowEx(exStyle, wxT("BUTTON"), Label,
 115             msStyle,
 116             0, 0, 0, 0,
 117             (HWND)parent->GetHWND(), (HMENU)m_windowId,
 118             wxGetInstance(), NULL);
 119
 120 #if wxUSE_CTL3D
 121     if (want3D)
 122     {
 123         Ctl3dSubclassCtl(GetHwnd());
 124         m_useCtl3D = TRUE;
 125     }
 126 #endif
 127
 128     // Subclass again for purposes of dialog editing mode
 129     SubclassWin(m_hWnd);
 130
 131     SetFont(parent->GetFont());
 132
 133     SetSize(x, y, width, height);
 134
 135     return TRUE;
 136 }
 137
 138 void wxCheckBox::SetLabel(const wxString& label)
 139 {
 140   SetWindowText(GetHwnd(), label);
 141 }
 142
 143 wxSize wxCheckBox::DoGetBestSize() const
 144 {
 145     int wCheckbox, hCheckbox;
 146
 147     wxString str = wxGetWindowText(GetHWND());
 148
 149     if ( !str.IsEmpty() )
 150     {
 151         GetTextExtent(str, &wCheckbox, &hCheckbox);
 152         wCheckbox += RADIO_SIZE;
 153
 154         if ( hCheckbox < RADIO_SIZE )
 155             hCheckbox = RADIO_SIZE;
 156     }
 157     else
 158     {
 159         wCheckbox = RADIO_SIZE;
 160         hCheckbox = RADIO_SIZE;
 161     }
 162
 163     return wxSize(wCheckbox, hCheckbox);
 164 }
 165
 166 void wxCheckBox::SetValue(bool val)
 167 {
 168     SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
 169 }
 170
 171 #ifndef BST_CHECKED
 172 #define BST_CHECKED 0x0001
 173 #endif
 174
 175 bool wxCheckBox::GetValue() const
 176 {
 177 #ifdef __WIN32__
 178   return (SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED);
 179 #else
 180   return ((0x003 & SendMessage(GetHwnd(), BM_GETCHECK, 0, 0)) == 0x003);
 181 #endif
 182 }
 183
 184 void wxCheckBox::Command (wxCommandEvent & event)
 185 {
 186   SetValue ((event.GetInt() != 0));
 187   ProcessCommand (event);
 188 }
 189
 190 // ----------------------------------------------------------------------------
 191 // wxBitmapCheckBox
 192 // ----------------------------------------------------------------------------
 193
 194 bool wxBitmapCheckBox::Create(wxWindow *parent, wxWindowID id, const wxBitmap *label,
 195            const wxPoint& pos,
 196            const wxSize& size, long style,
 197            const wxValidator& validator,
 198            const wxString& name)
 199 {
 200   SetName(name);
 201 #if wxUSE_VALIDATORS
 202   SetValidator(validator);
 203 #endif // wxUSE_VALIDATORS
 204   if (parent) parent->AddChild(this);
 205
 206   SetBackgroundColour(parent->GetBackgroundColour()) ;
 207   SetForegroundColour(parent->GetForegroundColour()) ;
 208   m_windowStyle = style;
 209
 210   if ( id == -1 )
 211       m_windowId = NewControlId();
 212   else
 213       m_windowId = id;
 214
 215   int x = pos.x;
 216   int y = pos.y;
 217   int width = size.x;
 218   int height = size.y;
 219
 220   checkWidth = -1 ;
 221   checkHeight = -1 ;
 222   long msStyle = CHECK_FLAGS;
 223
 224   HWND wx_button = CreateWindowEx(MakeExtendedStyle(m_windowStyle), CHECK_CLASS, wxT("toggle"),
 225                     msStyle,
 226                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 227                     wxGetInstance(), NULL);
 228
 229 #if wxUSE_CTL3D
 230   if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
 231   {
 232     Ctl3dSubclassCtl(wx_button);
 233     m_useCtl3D = TRUE;
 234   }
 235 #endif
 236
 237   m_hWnd = (WXHWND)wx_button;
 238
 239   // Subclass again for purposes of dialog editing mode
 240   SubclassWin((WXHWND)wx_button);
 241
 242   SetSize(x, y, width, height);
 243
 244   ShowWindow(wx_button, SW_SHOW);
 245
 246   return TRUE;
 247 }
 248
 249 void wxBitmapCheckBox::SetLabel(const wxBitmap& bitmap)
 250 {
 251     wxFAIL_MSG(wxT("not implemented"));
 252 }