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 #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 // ----------------------------------------------------------------------------
  43 // macros
  44 // ----------------------------------------------------------------------------
  45
  46 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl)
  47 IMPLEMENT_DYNAMIC_CLASS(wxBitmapCheckBox, wxCheckBox)
  48
  49 // ============================================================================
  50 // implementation
  51 // ============================================================================
  52
  53 // ----------------------------------------------------------------------------
  54 // wxCheckBox
  55 // ----------------------------------------------------------------------------
  56
  57 bool wxCheckBox::MSWCommand(WXUINT WXUNUSED(param), WXWORD WXUNUSED(id))
  58 {
  59     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, m_windowId);
  60     event.SetInt(GetValue());
  61     event.SetEventObject(this);
  62     ProcessCommand(event);
  63     return TRUE;
  64 }
  65
  66 bool wxCheckBox::Create(wxWindow *parent,
  67                         wxWindowID id,
  68                         const wxString& label,
  69                         const wxPoint& pos,
  70                         const wxSize& size, long style,
  71                         const wxValidator& validator,
  72                         const wxString& name)
  73 {
  74     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
  75         return FALSE;
  76
  77     long msStyle = BS_AUTOCHECKBOX | WS_TABSTOP;
  78     if ( style & wxALIGN_RIGHT )
  79         msStyle |= BS_LEFTTEXT;
  80
  81     return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, 0);
  82 }
  83
  84 void wxCheckBox::SetLabel(const wxString& label)
  85 {
  86     SetWindowText(GetHwnd(), label);
  87 }
  88
  89 wxSize wxCheckBox::DoGetBestSize() const
  90 {
  91     static int s_checkSize = 0;
  92
  93     if ( !s_checkSize )
  94     {
  95         wxScreenDC dc;
  96         dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
  97
  98         s_checkSize = dc.GetCharHeight();
  99     }
 100
 101     wxString str = wxGetWindowText(GetHWND());
 102
 103     int wCheckbox, hCheckbox;
 104     if ( !str.IsEmpty() )
 105     {
 106         GetTextExtent(str, &wCheckbox, &hCheckbox);
 107         wCheckbox += s_checkSize + GetCharWidth();
 108
 109         if ( hCheckbox < s_checkSize )
 110             hCheckbox = s_checkSize;
 111     }
 112     else
 113     {
 114         wCheckbox = s_checkSize;
 115         hCheckbox = s_checkSize;
 116     }
 117
 118     return wxSize(wCheckbox, hCheckbox);
 119 }
 120
 121 void wxCheckBox::SetValue(bool val)
 122 {
 123     SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
 124 }
 125
 126 #ifndef BST_CHECKED
 127 #define BST_CHECKED 0x0001
 128 #endif
 129
 130 bool wxCheckBox::GetValue() const
 131 {
 132 #ifdef __WIN32__
 133   return (SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED);
 134 #else
 135   return ((0x001 & SendMessage(GetHwnd(), BM_GETCHECK, 0, 0)) == 0x001);
 136 #endif
 137 }
 138
 139 void wxCheckBox::Command (wxCommandEvent & event)
 140 {
 141   SetValue ((event.GetInt() != 0));
 142   ProcessCommand (event);
 143 }
 144
 145 // ----------------------------------------------------------------------------
 146 // wxBitmapCheckBox
 147 // ----------------------------------------------------------------------------
 148
 149 bool wxBitmapCheckBox::Create(wxWindow *parent, wxWindowID id, const wxBitmap *WXUNUSED(label),
 150            const wxPoint& pos,
 151            const wxSize& size, long style,
 152            const wxValidator& validator,
 153            const wxString& name)
 154 {
 155   SetName(name);
 156 #if wxUSE_VALIDATORS
 157   SetValidator(validator);
 158 #endif // wxUSE_VALIDATORS
 159   if (parent) parent->AddChild(this);
 160
 161   SetBackgroundColour(parent->GetBackgroundColour()) ;
 162   SetForegroundColour(parent->GetForegroundColour()) ;
 163   m_windowStyle = style;
 164
 165   if ( id == -1 )
 166       m_windowId = NewControlId();
 167   else
 168       m_windowId = id;
 169
 170   int x = pos.x;
 171   int y = pos.y;
 172   int width = size.x;
 173   int height = size.y;
 174
 175   checkWidth = -1 ;
 176   checkHeight = -1 ;
 177   long msStyle = CHECK_FLAGS;
 178
 179   HWND wx_button = CreateWindowEx(MakeExtendedStyle(m_windowStyle), CHECK_CLASS, wxT("toggle"),
 180                     msStyle,
 181                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 182                     wxGetInstance(), NULL);
 183
 184 #if wxUSE_CTL3D
 185   if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
 186   {
 187     Ctl3dSubclassCtl(wx_button);
 188     m_useCtl3D = TRUE;
 189   }
 190 #endif
 191
 192   m_hWnd = (WXHWND)wx_button;
 193
 194   // Subclass again for purposes of dialog editing mode
 195   SubclassWin((WXHWND)wx_button);
 196
 197   SetSize(x, y, width, height);
 198
 199   ShowWindow(wx_button, SW_SHOW);
 200
 201   return TRUE;
 202 }
 203
 204 void wxBitmapCheckBox::SetLabel(const wxBitmap& WXUNUSED(bitmap))
 205 {
 206     wxFAIL_MSG(wxT("not implemented"));
 207 }
 208
 209 #endif // wxUSE_CHECKBOX