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 #if !USE_SHARED_LIBRARY
  43     IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl)
  44     IMPLEMENT_DYNAMIC_CLASS(wxBitmapCheckBox, wxCheckBox)
  45 #endif
  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, wxWindowID id, 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     SetValidator(validator);
  73     if (parent) parent->AddChild(this);
  74
  75     SetBackgroundColour(parent->GetBackgroundColour()) ;
  76     SetForegroundColour(parent->GetForegroundColour()) ;
  77
  78     m_windowStyle = style;
  79
  80     wxString Label = label;
  81     if (Label == _T(""))
  82         Label = _T(" "); // Apparently needed or checkbox won't show
  83
  84     if ( id == -1 )
  85         m_windowId = NewControlId();
  86     else
  87         m_windowId = id;
  88
  89     int x = pos.x;
  90     int y = pos.y;
  91     int width = size.x;
  92     int height = size.y;
  93
  94     long msStyle = BS_AUTOCHECKBOX | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
  95     if ( style & wxALIGN_RIGHT )
  96         msStyle |= BS_LEFTTEXT;
  97
  98     // We perhaps have different concepts of 3D here - a 3D border,
  99     // versus a 3D button.
 100     // So we only wish to give a border if this is specified
 101     // in the style.
 102     bool want3D;
 103     WXDWORD exStyle = Determine3DEffects(0, &want3D) ;
 104
 105     // Even with extended styles, need to combine with WS_BORDER
 106     // for them to look right.
 107     /*
 108        if ( want3D || wxStyleHasBorder(m_windowStyle) )
 109        msStyle |= WS_BORDER;
 110      */
 111
 112     m_hWnd = (WXHWND)CreateWindowEx(exStyle, _T("BUTTON"), Label,
 113             msStyle,
 114             0, 0, 0, 0,
 115             (HWND)parent->GetHWND(), (HMENU)m_windowId,
 116             wxGetInstance(), NULL);
 117
 118 #if wxUSE_CTL3D
 119     if (want3D)
 120     {
 121         Ctl3dSubclassCtl(GetHwnd());
 122         m_useCtl3D = TRUE;
 123     }
 124 #endif
 125
 126     // Subclass again for purposes of dialog editing mode
 127     SubclassWin(m_hWnd);
 128
 129     SetFont(parent->GetFont());
 130
 131     SetSize(x, y, width, height);
 132
 133     return TRUE;
 134 }
 135
 136 void wxCheckBox::SetLabel(const wxString& label)
 137 {
 138   SetWindowText(GetHwnd(), label);
 139 }
 140
 141 wxSize wxCheckBox::DoGetBestSize()
 142 {
 143     int wCheckbox, hCheckbox;
 144
 145     wxString str = wxGetWindowText(GetHWND());
 146
 147     if ( !str.IsEmpty() )
 148     {
 149         GetTextExtent(str, &wCheckbox, &hCheckbox);
 150         wCheckbox += RADIO_SIZE;
 151
 152         if ( hCheckbox < RADIO_SIZE )
 153             hCheckbox = RADIO_SIZE;
 154     }
 155     else
 156     {
 157         wCheckbox = RADIO_SIZE;
 158         hCheckbox = RADIO_SIZE;
 159     }
 160
 161     return wxSize(wCheckbox, hCheckbox);
 162 }
 163
 164 void wxCheckBox::SetValue(bool val)
 165 {
 166     SendMessage(GetHwnd(), BM_SETCHECK, val, 0);
 167 }
 168
 169 #ifndef BST_CHECKED
 170 #define BST_CHECKED 0x0001
 171 #endif
 172
 173 bool wxCheckBox::GetValue() const
 174 {
 175 #ifdef __WIN32__
 176   return (SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) == BST_CHECKED);
 177 #else
 178   return ((0x003 & SendMessage(GetHwnd(), BM_GETCHECK, 0, 0)) == 0x003);
 179 #endif
 180 }
 181
 182 WXHBRUSH wxCheckBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
 183                                 WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 184 {
 185 #if wxUSE_CTL3D
 186   if ( m_useCtl3D )
 187   {
 188     HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
 189
 190       return (WXHBRUSH) hbrush;
 191   }
 192 #endif
 193
 194   if (GetParent()->GetTransparentBackground())
 195     SetBkMode((HDC) pDC, TRANSPARENT);
 196   else
 197     SetBkMode((HDC) pDC, OPAQUE);
 198
 199   ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 200   ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
 201
 202   wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 203
 204   // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
 205   // has a zero usage count.
 206 //  backgroundBrush->RealizeResource();
 207   return (WXHBRUSH) backgroundBrush->GetResourceHandle();
 208 }
 209
 210 void wxCheckBox::Command (wxCommandEvent & event)
 211 {
 212   SetValue ((event.GetInt() != 0));
 213   ProcessCommand (event);
 214 }
 215
 216 // ----------------------------------------------------------------------------
 217 // wxBitmapCheckBox
 218 // ----------------------------------------------------------------------------
 219
 220 bool wxBitmapCheckBox::Create(wxWindow *parent, wxWindowID id, const wxBitmap *label,
 221            const wxPoint& pos,
 222            const wxSize& size, long style,
 223            const wxValidator& validator,
 224            const wxString& name)
 225 {
 226   SetName(name);
 227   SetValidator(validator);
 228   if (parent) parent->AddChild(this);
 229
 230   SetBackgroundColour(parent->GetBackgroundColour()) ;
 231   SetForegroundColour(parent->GetForegroundColour()) ;
 232   m_windowStyle = style;
 233
 234   if ( id == -1 )
 235       m_windowId = NewControlId();
 236   else
 237       m_windowId = id;
 238
 239   int x = pos.x;
 240   int y = pos.y;
 241   int width = size.x;
 242   int height = size.y;
 243
 244   checkWidth = -1 ;
 245   checkHeight = -1 ;
 246   long msStyle = CHECK_FLAGS;
 247
 248   HWND wx_button = CreateWindowEx(MakeExtendedStyle(m_windowStyle), CHECK_CLASS, _T("toggle"),
 249                     msStyle,
 250                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 251                     wxGetInstance(), NULL);
 252
 253 #if wxUSE_CTL3D
 254   if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
 255   {
 256     Ctl3dSubclassCtl(wx_button);
 257     m_useCtl3D = TRUE;
 258   }
 259 #endif
 260
 261   m_hWnd = (WXHWND)wx_button;
 262
 263   // Subclass again for purposes of dialog editing mode
 264   SubclassWin((WXHWND)wx_button);
 265
 266   SetSize(x, y, width, height);
 267
 268   ShowWindow(wx_button, SW_SHOW);
 269
 270   return TRUE;
 271 }
 272
 273 void wxBitmapCheckBox::SetLabel(const wxBitmap& bitmap)
 274 {
 275     wxFAIL_MSG("not implemented");
 276 }