src/msw/spinbutt.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        spinbutt.cpp
   3 // Purpose:     wxSpinButton
   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 "spinbutt.h"
  22     #pragma implementation "spinbutbase.h"
  23 #endif
  24
  25 // For compilers that support precompilation, includes "wx.h".
  26 #include "wx/wxprec.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 #ifndef WX_PRECOMP
  33     #include "wx/wx.h"
  34 #endif
  35
  36 // Can't resolve reference to CreateUpDownControl in
  37 // TWIN32, but could probably use normal CreateWindow instead.
  38
  39 #if wxUSE_SPINBTN
  40
  41 IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxNotifyEvent)
  42
  43 #if defined(__WIN95__) && !defined(__TWIN32__)
  44
  45 #include "wx/spinbutt.h"
  46 #include "wx/msw/private.h"
  47
  48 #if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) || defined(__TWIN32__))
  49     #include <commctrl.h>
  50 #endif
  51
  52 // ============================================================================
  53 // implementation
  54 // ============================================================================
  55
  56 // ----------------------------------------------------------------------------
  57 // wxWin macros
  58 // ----------------------------------------------------------------------------
  59
  60 IMPLEMENT_DYNAMIC_CLASS(wxSpinButton, wxControl)
  61
  62 // ----------------------------------------------------------------------------
  63 // wxSpinButton
  64 // ----------------------------------------------------------------------------
  65
  66 bool wxSpinButton::Create(wxWindow *parent,
  67                           wxWindowID id,
  68                           const wxPoint& pos,
  69                           const wxSize& size,
  70                           long style,
  71                           const wxString& name)
  72 {
  73     // basic initialization
  74     InitBase();
  75
  76     m_windowId = (id == -1) ? NewControlId() : id;
  77
  78     m_backgroundColour = parent->GetBackgroundColour() ;
  79     m_foregroundColour = parent->GetForegroundColour() ;
  80
  81     SetName(name);
  82
  83     int x = pos.x;
  84     int y = pos.y;
  85     int width = size.x;
  86     int height = size.y;
  87
  88     m_windowStyle = style;
  89
  90     SetParent(parent);
  91
  92     // get the right size for the control
  93     if ( width <= 0 || height <= 0 )
  94     {
  95         wxSize size = DoGetBestSize();
  96         if ( width <= 0 )
  97             width = size.x;
  98         if ( height <= 0 )
  99             height = size.y;
 100     }
 101
 102     if ( x < 0 )
 103         x = 0;
 104     if ( y < 0 )
 105         y = 0;
 106
 107     // translate the styles
 108     DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP |
 109                    UDS_NOTHOUSANDS | // never useful, sometimes harmful
 110                    UDS_SETBUDDYINT;  // it doesn't harm if we don't have buddy
 111
 112     if ( m_windowStyle & wxSP_HORIZONTAL )
 113         wstyle |= UDS_HORZ;
 114     if ( m_windowStyle & wxSP_ARROW_KEYS )
 115         wstyle |= UDS_ARROWKEYS;
 116     if ( m_windowStyle & wxSP_WRAP )
 117         wstyle |= UDS_WRAP;
 118
 119     // create the UpDown control.
 120     m_hWnd = (WXHWND)CreateUpDownControl
 121                      (
 122                        wstyle,
 123                        x, y, width, height,
 124                        GetHwndOf(parent),
 125                        m_windowId,
 126                        wxGetInstance(),
 127                        NULL, // no buddy
 128                        m_max, m_min,
 129                        m_min // initial position
 130                      );
 131
 132     if ( !m_hWnd )
 133     {
 134         wxLogLastError("CreateUpDownControl");
 135
 136         return FALSE;
 137     }
 138
 139     if ( parent )
 140     {
 141         parent->AddChild(this);
 142     }
 143
 144     SubclassWin(m_hWnd);
 145
 146     return TRUE;
 147 }
 148
 149 wxSpinButton::~wxSpinButton()
 150 {
 151 }
 152
 153 // ----------------------------------------------------------------------------
 154 // size calculation
 155 // ----------------------------------------------------------------------------
 156
 157 wxSize wxSpinButton::DoGetBestSize() const
 158 {
 159     if ( (GetWindowStyle() & wxSP_VERTICAL) != 0 )
 160     {
 161         // vertical control
 162         return wxSize(GetSystemMetrics(SM_CXVSCROLL),
 163                       2*GetSystemMetrics(SM_CYVSCROLL));
 164     }
 165     else
 166     {
 167         // horizontal control
 168         return wxSize(2*GetSystemMetrics(SM_CXHSCROLL),
 169                       GetSystemMetrics(SM_CYHSCROLL));
 170     }
 171 }
 172
 173 // ----------------------------------------------------------------------------
 174 // Attributes
 175 // ----------------------------------------------------------------------------
 176
 177 int wxSpinButton::GetValue() const
 178 {
 179     return (short)LOWORD(::SendMessage(GetHwnd(), UDM_GETPOS, 0, 0));
 180 }
 181
 182 void wxSpinButton::SetValue(int val)
 183 {
 184     ::SendMessage(GetHwnd(), UDM_SETPOS, 0, (LPARAM) MAKELONG((short) val, 0));
 185 }
 186
 187 void wxSpinButton::SetRange(int minVal, int maxVal)
 188 {
 189     wxSpinButtonBase::SetRange(minVal, maxVal);
 190     ::SendMessage(GetHwnd(), UDM_SETRANGE, 0,
 191                    (LPARAM) MAKELONG((short)maxVal, (short)minVal));
 192 }
 193
 194 bool wxSpinButton::MSWOnScroll(int orientation, WXWORD wParam,
 195                                WXWORD pos, WXHWND control)
 196 {
 197     wxCHECK_MSG( control, FALSE, wxT("scrolling what?") )
 198
 199     if ( wParam != SB_THUMBPOSITION )
 200     {
 201         // probable SB_ENDSCROLL - we don't react to it
 202         return FALSE;
 203     }
 204
 205     wxSpinEvent event(wxEVT_SCROLL_THUMBTRACK, m_windowId);
 206     event.SetPosition((short)pos);    // cast is important for negative values!
 207     event.SetEventObject(this);
 208
 209     return GetEventHandler()->ProcessEvent(event);
 210 }
 211
 212 bool wxSpinButton::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 213 {
 214 #ifndef __GNUWIN32__
 215 #if defined(__BORLANDC__) || defined(__WATCOMC__)
 216     LPNM_UPDOWN lpnmud = (LPNM_UPDOWN)lParam;
 217 #elif defined(__VISUALC__) && (__VISUALC__ >= 1000) && (__VISUALC__ < 1020)
 218     LPNM_UPDOWN lpnmud = (LPNM_UPDOWN)lParam;
 219 #else
 220     LPNMUPDOWN lpnmud = (LPNMUPDOWN)lParam;
 221 #endif
 222
 223     wxSpinEvent event(lpnmud->iDelta > 0 ? wxEVT_SCROLL_LINEUP
 224                                          : wxEVT_SCROLL_LINEDOWN,
 225                       m_windowId);
 226     event.SetPosition(lpnmud->iPos + lpnmud->iDelta);
 227     event.SetEventObject(this);
 228
 229     bool processed = GetEventHandler()->ProcessEvent(event);
 230
 231     *result = event.IsAllowed() ? 0 : 1;
 232
 233     return processed;
 234 #else // GnuWin32
 235     return FALSE;
 236 #endif
 237 }
 238
 239 bool wxSpinButton::MSWCommand(WXUINT cmd, WXWORD id)
 240 {
 241     // No command messages
 242     return FALSE;
 243 }
 244
 245 #endif // __WIN95__
 246
 247 #endif
 248     // wxUSE_SPINCTN
 249