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     #include "wx/dcscreen.h"
  35     #include "wx/settings.h"
  36 #endif
  37
  38 #include "wx/msw/private.h"
  39
  40 // ----------------------------------------------------------------------------
  41 // macros
  42 // ----------------------------------------------------------------------------
  43
  44 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl)
  45 IMPLEMENT_DYNAMIC_CLASS(wxBitmapCheckBox, wxCheckBox)
  46
  47 // ============================================================================
  48 // implementation
  49 // ============================================================================
  50
  51 // ----------------------------------------------------------------------------
  52 // wxCheckBox
  53 // ----------------------------------------------------------------------------
  54
  55 bool wxCheckBox::MSWCommand(WXUINT WXUNUSED(param), WXWORD WXUNUSED(id))
  56 {
  57     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, m_windowId);
  58     event.SetInt(GetValue());
  59     event.SetEventObject(this);
  60     ProcessCommand(event);
  61     return TRUE;
  62 }
  63
  64 // Single check box item
  65 bool wxCheckBox::Create(wxWindow *parent,
  66                         wxWindowID id,
  67                         const wxString& label,
  68                         const wxPoint& pos,
  69                         const wxSize& size, long style,
  70                         const wxValidator& validator,
  71                         const wxString& name)
  72 {
  73     SetName(name);
  74 #if wxUSE_VALIDATORS
  75     SetValidator(validator);
  76 #endif // wxUSE_VALIDATORS
  77     if (parent) parent->AddChild(this);
  78
  79     SetBackgroundColour(parent->GetBackgroundColour()) ;
  80     SetForegroundColour(parent->GetForegroundColour()) ;
  81
  82     m_windowStyle = style;
  83
  84     // VZ: disabling this ugliness which completely breaks checkboxes in wxGrid
  85     //     whoever did it, please tell me where and how does the checkbox fail
  86     //     to appear
  87 #if 0
  88     wxString Label = label;
  89     if (Label == wxT(""))
  90         Label = wxT(" "); // Apparently needed or checkbox won't show
  91 #endif // 0
  92
  93     if ( id == -1 )
  94         m_windowId = NewControlId();
  95     else
  96         m_windowId = id;
  97
  98     int x = pos.x;
  99     int y = pos.y;
 100     int width = size.x;
 101     int height = size.y;
 102
 103     long msStyle = BS_AUTOCHECKBOX | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
 104     if ( style & wxALIGN_RIGHT )
 105         msStyle |= BS_LEFTTEXT;
 106
 107     // We perhaps have different concepts of 3D here - a 3D border,
 108     // versus a 3D button.
 109     // So we only wish to give a border if this is specified
 110     // in the style.
 111     bool want3D;
 112     WXDWORD exStyle = Determine3DEffects(0, &want3D) ;
 113
 114     // Even with extended styles, need to combine with WS_BORDER
 115     // for them to look right.
 116     /*
 117        if ( want3D || wxStyleHasBorder(m_windowStyle) )
 118        msStyle |= WS_BORDER;
 119      */
 120
 121     m_hWnd = (WXHWND)CreateWindowEx(exStyle, wxT("BUTTON"), label,
 122             msStyle,
 123             0, 0, 0, 0,
 124             (HWND)parent->GetHWND(), (HMENU)m_windowId,
 125             wxGetInstance(), NULL);
 126
 127 #if wxUSE_CTL3D
 128     if (want3D)
 129     {
 130         Ctl3dSubclassCtl(GetHwnd());
 131         m_useCtl3D = TRUE;
 132     }
 133 #endif
 134
 135     // Subclass again for purposes of dialog editing mode
 136     SubclassWin(m_hWnd);
 137
 138     SetFont(parent->GetFont());
 139
 140     SetSize(x, y, width, height);
 141
 142     return TRUE;
 143 }
 144
 145 void wxCheckBox::SetLabel(const wxString& label)
 146 {
 147     SetWindowText(GetHwnd(), label);
 148 }
 149
 150 wxSize wxCheckBox::DoGetBestSize() const
 151 {
 152     static int s_checkSize = 0;
 153
 154     if ( !s_checkSize )
 155     {
 156         wxScreenDC dc;
 157         dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 158
 159         s_checkSize = (3*dc.GetCharHeight())/2;
 160     }
 161
 162     wxString str = wxGetWindowText(GetHWND());
 163
 164     int wCheckbox, hCheckbox;
 165     if ( !str.IsEmpty() )
 166     {
 167         GetTextExtent(str, &wCheckbox, &hCheckbox);
 168         wCheckbox += s_checkSize + GetCharWidth();
 169
 170         if ( hCheckbox < s_checkSize )
 171             hCheckbox = s_checkSize;
 172     }
 173     else
 174     {
 175         wCheckbox = s_checkSize;
 176         hCheckbox = s_checkSize;
 177     }
 178
 179     return wxSize(wCheckbox, hCheckbox);
 180 }
 181
 182 void wxCheckBox::SetValue(bool val)
 183 {
 184     SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
 185 }
 186
 187 #ifndef BST_CHECKED
 188 #define BST_CHECKED 0x0001
 189 #endif
 190
 191 bool wxCheckBox::GetValue() const
 192 {
 193 #ifdef __WIN32__
 194   return (SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED);
 195 #else
 196   return ((0x001 & SendMessage(GetHwnd(), BM_GETCHECK, 0, 0)) == 0x001);
 197 #endif
 198 }
 199
 200 void wxCheckBox::Command (wxCommandEvent & event)
 201 {
 202   SetValue ((event.GetInt() != 0));
 203   ProcessCommand (event);
 204 }
 205
 206 // ----------------------------------------------------------------------------
 207 // wxBitmapCheckBox
 208 // ----------------------------------------------------------------------------
 209
 210 bool wxBitmapCheckBox::Create(wxWindow *parent, wxWindowID id, const wxBitmap *WXUNUSED(label),
 211            const wxPoint& pos,
 212            const wxSize& size, long style,
 213            const wxValidator& validator,
 214            const wxString& name)
 215 {
 216   SetName(name);
 217 #if wxUSE_VALIDATORS
 218   SetValidator(validator);
 219 #endif // wxUSE_VALIDATORS
 220   if (parent) parent->AddChild(this);
 221
 222   SetBackgroundColour(parent->GetBackgroundColour()) ;
 223   SetForegroundColour(parent->GetForegroundColour()) ;
 224   m_windowStyle = style;
 225
 226   if ( id == -1 )
 227       m_windowId = NewControlId();
 228   else
 229       m_windowId = id;
 230
 231   int x = pos.x;
 232   int y = pos.y;
 233   int width = size.x;
 234   int height = size.y;
 235
 236   checkWidth = -1 ;
 237   checkHeight = -1 ;
 238   long msStyle = CHECK_FLAGS;
 239
 240   HWND wx_button = CreateWindowEx(MakeExtendedStyle(m_windowStyle), CHECK_CLASS, wxT("toggle"),
 241                     msStyle,
 242                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 243                     wxGetInstance(), NULL);
 244
 245 #if wxUSE_CTL3D
 246   if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
 247   {
 248     Ctl3dSubclassCtl(wx_button);
 249     m_useCtl3D = TRUE;
 250   }
 251 #endif
 252
 253   m_hWnd = (WXHWND)wx_button;
 254
 255   // Subclass again for purposes of dialog editing mode
 256   SubclassWin((WXHWND)wx_button);
 257
 258   SetSize(x, y, width, height);
 259
 260   ShowWindow(wx_button, SW_SHOW);
 261
 262   return TRUE;
 263 }
 264
 265 void wxBitmapCheckBox::SetLabel(const wxBitmap& WXUNUSED(bitmap))
 266 {
 267     wxFAIL_MSG(wxT("not implemented"));
 268 }