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     // VZ: disabling this ugliness which completely breaks checkboxes in wxGrid
  83     //     whoever did it, please tell me where and how does the checkbox fail
  84     //     to appear
  85 #if 0
  86     wxString Label = label;
  87     if (Label == wxT(""))
  88         Label = wxT(" "); // Apparently needed or checkbox won't show
  89 #endif // 0
  90
  91     if ( id == -1 )
  92         m_windowId = NewControlId();
  93     else
  94         m_windowId = id;
  95
  96     int x = pos.x;
  97     int y = pos.y;
  98     int width = size.x;
  99     int height = size.y;
 100
 101     long msStyle = BS_AUTOCHECKBOX | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
 102     if ( style & wxALIGN_RIGHT )
 103         msStyle |= BS_LEFTTEXT;
 104
 105     // We perhaps have different concepts of 3D here - a 3D border,
 106     // versus a 3D button.
 107     // So we only wish to give a border if this is specified
 108     // in the style.
 109     bool want3D;
 110     WXDWORD exStyle = Determine3DEffects(0, &want3D) ;
 111
 112     // Even with extended styles, need to combine with WS_BORDER
 113     // for them to look right.
 114     /*
 115        if ( want3D || wxStyleHasBorder(m_windowStyle) )
 116        msStyle |= WS_BORDER;
 117      */
 118
 119     m_hWnd = (WXHWND)CreateWindowEx(exStyle, wxT("BUTTON"), label,
 120             msStyle,
 121             0, 0, 0, 0,
 122             (HWND)parent->GetHWND(), (HMENU)m_windowId,
 123             wxGetInstance(), NULL);
 124
 125 #if wxUSE_CTL3D
 126     if (want3D)
 127     {
 128         Ctl3dSubclassCtl(GetHwnd());
 129         m_useCtl3D = TRUE;
 130     }
 131 #endif
 132
 133     // Subclass again for purposes of dialog editing mode
 134     SubclassWin(m_hWnd);
 135
 136     SetFont(parent->GetFont());
 137
 138     SetSize(x, y, width, height);
 139
 140     return TRUE;
 141 }
 142
 143 void wxCheckBox::SetLabel(const wxString& label)
 144 {
 145   SetWindowText(GetHwnd(), label);
 146 }
 147
 148 wxSize wxCheckBox::DoGetBestSize() const
 149 {
 150     int wCheckbox, hCheckbox;
 151
 152     wxString str = wxGetWindowText(GetHWND());
 153
 154     if ( !str.IsEmpty() )
 155     {
 156         GetTextExtent(str, &wCheckbox, &hCheckbox);
 157         wCheckbox += RADIO_SIZE;
 158
 159         if ( hCheckbox < RADIO_SIZE )
 160             hCheckbox = RADIO_SIZE;
 161     }
 162     else
 163     {
 164         wCheckbox = RADIO_SIZE;
 165         hCheckbox = RADIO_SIZE;
 166     }
 167
 168     return wxSize(wCheckbox, hCheckbox);
 169 }
 170
 171 void wxCheckBox::SetValue(bool val)
 172 {
 173     SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
 174 }
 175
 176 #ifndef BST_CHECKED
 177 #define BST_CHECKED 0x0001
 178 #endif
 179
 180 bool wxCheckBox::GetValue() const
 181 {
 182 #ifdef __WIN32__
 183   return (SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED);
 184 #else
 185   return ((0x003 & SendMessage(GetHwnd(), BM_GETCHECK, 0, 0)) == 0x003);
 186 #endif
 187 }
 188
 189 void wxCheckBox::Command (wxCommandEvent & event)
 190 {
 191   SetValue ((event.GetInt() != 0));
 192   ProcessCommand (event);
 193 }
 194
 195 // ----------------------------------------------------------------------------
 196 // wxBitmapCheckBox
 197 // ----------------------------------------------------------------------------
 198
 199 bool wxBitmapCheckBox::Create(wxWindow *parent, wxWindowID id, const wxBitmap *label,
 200            const wxPoint& pos,
 201            const wxSize& size, long style,
 202            const wxValidator& validator,
 203            const wxString& name)
 204 {
 205   SetName(name);
 206 #if wxUSE_VALIDATORS
 207   SetValidator(validator);
 208 #endif // wxUSE_VALIDATORS
 209   if (parent) parent->AddChild(this);
 210
 211   SetBackgroundColour(parent->GetBackgroundColour()) ;
 212   SetForegroundColour(parent->GetForegroundColour()) ;
 213   m_windowStyle = style;
 214
 215   if ( id == -1 )
 216       m_windowId = NewControlId();
 217   else
 218       m_windowId = id;
 219
 220   int x = pos.x;
 221   int y = pos.y;
 222   int width = size.x;
 223   int height = size.y;
 224
 225   checkWidth = -1 ;
 226   checkHeight = -1 ;
 227   long msStyle = CHECK_FLAGS;
 228
 229   HWND wx_button = CreateWindowEx(MakeExtendedStyle(m_windowStyle), CHECK_CLASS, wxT("toggle"),
 230                     msStyle,
 231                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 232                     wxGetInstance(), NULL);
 233
 234 #if wxUSE_CTL3D
 235   if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
 236   {
 237     Ctl3dSubclassCtl(wx_button);
 238     m_useCtl3D = TRUE;
 239   }
 240 #endif
 241
 242   m_hWnd = (WXHWND)wx_button;
 243
 244   // Subclass again for purposes of dialog editing mode
 245   SubclassWin((WXHWND)wx_button);
 246
 247   SetSize(x, y, width, height);
 248
 249   ShowWindow(wx_button, SW_SHOW);
 250
 251   return TRUE;
 252 }
 253
 254 void wxBitmapCheckBox::SetLabel(const wxBitmap& bitmap)
 255 {
 256     wxFAIL_MSG(wxT("not implemented"));
 257 }