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         // the height of a standard button in the dialog units is 8,
 160         // translate this to pixels (as one dialog unit is precisely equal to
 161         // 8 character heights, it's just the char height)
 162         s_checkSize = dc.GetCharHeight();
 163     }
 164
 165     wxString str = wxGetWindowText(GetHWND());
 166
 167     int wCheckbox, hCheckbox;
 168     if ( !str.IsEmpty() )
 169     {
 170         GetTextExtent(str, &wCheckbox, &hCheckbox);
 171         wCheckbox += s_checkSize + GetCharWidth();
 172
 173         if ( hCheckbox < s_checkSize )
 174             hCheckbox = s_checkSize;
 175     }
 176     else
 177     {
 178         wCheckbox = s_checkSize;
 179         hCheckbox = s_checkSize;
 180     }
 181
 182     return wxSize(wCheckbox, hCheckbox);
 183 }
 184
 185 void wxCheckBox::SetValue(bool val)
 186 {
 187     SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
 188 }
 189
 190 #ifndef BST_CHECKED
 191 #define BST_CHECKED 0x0001
 192 #endif
 193
 194 bool wxCheckBox::GetValue() const
 195 {
 196 #ifdef __WIN32__
 197   return (SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED);
 198 #else
 199   return ((0x001 & SendMessage(GetHwnd(), BM_GETCHECK, 0, 0)) == 0x001);
 200 #endif
 201 }
 202
 203 void wxCheckBox::Command (wxCommandEvent & event)
 204 {
 205   SetValue ((event.GetInt() != 0));
 206   ProcessCommand (event);
 207 }
 208
 209 // ----------------------------------------------------------------------------
 210 // wxBitmapCheckBox
 211 // ----------------------------------------------------------------------------
 212
 213 bool wxBitmapCheckBox::Create(wxWindow *parent, wxWindowID id, const wxBitmap *label,
 214            const wxPoint& pos,
 215            const wxSize& size, long style,
 216            const wxValidator& validator,
 217            const wxString& name)
 218 {
 219   SetName(name);
 220 #if wxUSE_VALIDATORS
 221   SetValidator(validator);
 222 #endif // wxUSE_VALIDATORS
 223   if (parent) parent->AddChild(this);
 224
 225   SetBackgroundColour(parent->GetBackgroundColour()) ;
 226   SetForegroundColour(parent->GetForegroundColour()) ;
 227   m_windowStyle = style;
 228
 229   if ( id == -1 )
 230       m_windowId = NewControlId();
 231   else
 232       m_windowId = id;
 233
 234   int x = pos.x;
 235   int y = pos.y;
 236   int width = size.x;
 237   int height = size.y;
 238
 239   checkWidth = -1 ;
 240   checkHeight = -1 ;
 241   long msStyle = CHECK_FLAGS;
 242
 243   HWND wx_button = CreateWindowEx(MakeExtendedStyle(m_windowStyle), CHECK_CLASS, wxT("toggle"),
 244                     msStyle,
 245                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 246                     wxGetInstance(), NULL);
 247
 248 #if wxUSE_CTL3D
 249   if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
 250   {
 251     Ctl3dSubclassCtl(wx_button);
 252     m_useCtl3D = TRUE;
 253   }
 254 #endif
 255
 256   m_hWnd = (WXHWND)wx_button;
 257
 258   // Subclass again for purposes of dialog editing mode
 259   SubclassWin((WXHWND)wx_button);
 260
 261   SetSize(x, y, width, height);
 262
 263   ShowWindow(wx_button, SW_SHOW);
 264
 265   return TRUE;
 266 }
 267
 268 void wxBitmapCheckBox::SetLabel(const wxBitmap& bitmap)
 269 {
 270     wxFAIL_MSG(wxT("not implemented"));
 271 }