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 #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/wx.h"
  33 #endif
  34
  35 // Can't resolve reference to CreateUpDownControl in
  36 // TWIN32, but could probably use normal CreateWindow instead.
  37
  38 #if wxUSE_SPINBTN
  39
  40 #if defined(__WIN95__) && !defined(__TWIN32__)
  41
  42 #include "wx/spinbutt.h"
  43 #include "wx/msw/private.h"
  44
  45 #if !defined(__GNUWIN32__) || defined(__TWIN32__) || defined(wxUSE_NORLANDER_HEADERS)
  46     #include <commctrl.h>
  47 #endif
  48
  49 // ============================================================================
  50 // implementation
  51 // ============================================================================
  52
  53 // ----------------------------------------------------------------------------
  54 // wxWin macros
  55 // ----------------------------------------------------------------------------
  56
  57 #if !USE_SHARED_LIBRARY
  58     IMPLEMENT_DYNAMIC_CLASS(wxSpinButton, wxControl)
  59     IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxScrollEvent);
  60 #endif
  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_SETBUDDYINT; // it doesn't harm if we don't have buddy
 110
 111     if ( m_windowStyle & wxSP_HORIZONTAL )
 112         wstyle |= UDS_HORZ;
 113     if ( m_windowStyle & wxSP_ARROW_KEYS )
 114         wstyle |= UDS_ARROWKEYS;
 115     if ( m_windowStyle & wxSP_WRAP )
 116         wstyle |= UDS_WRAP;
 117
 118     // create the UpDown control.
 119     m_hWnd = (WXHWND)CreateUpDownControl
 120                      (
 121                        wstyle,
 122                        x, y, width, height,
 123                        GetHwndOf(parent),
 124                        m_windowId,
 125                        wxGetInstance(),
 126                        NULL, // no buddy
 127                        m_max, m_min,
 128                        m_min // initial position
 129                      );
 130
 131     if ( !m_hWnd )
 132     {
 133         wxLogLastError("CreateUpDownControl");
 134
 135         return FALSE;
 136     }
 137
 138     if ( parent )
 139     {
 140         parent->AddChild(this);
 141     }
 142
 143     SubclassWin(m_hWnd);
 144
 145     return TRUE;
 146 }
 147
 148 wxSpinButton::~wxSpinButton()
 149 {
 150 }
 151
 152 // ----------------------------------------------------------------------------
 153 // size calculation
 154 // ----------------------------------------------------------------------------
 155
 156 wxSize wxSpinButton::DoGetBestSize() const
 157 {
 158     if ( (GetWindowStyle() & wxSP_VERTICAL) != 0 )
 159     {
 160         // vertical control
 161         return wxSize(GetSystemMetrics(SM_CXVSCROLL),
 162                       2*GetSystemMetrics(SM_CYVSCROLL));
 163     }
 164     else
 165     {
 166         // horizontal control
 167         return wxSize(2*GetSystemMetrics(SM_CXHSCROLL),
 168                       GetSystemMetrics(SM_CYHSCROLL));
 169     }
 170 }
 171
 172 // ----------------------------------------------------------------------------
 173 // Attributes
 174 // ----------------------------------------------------------------------------
 175
 176 int wxSpinButton::GetValue() const
 177 {
 178     return (short)LOWORD(::SendMessage(GetHwnd(), UDM_GETPOS, 0, 0));
 179 }
 180
 181 void wxSpinButton::SetValue(int val)
 182 {
 183     ::SendMessage(GetHwnd(), UDM_SETPOS, 0, (LPARAM) MAKELONG((short) val, 0));
 184 }
 185
 186 void wxSpinButton::SetRange(int minVal, int maxVal)
 187 {
 188     wxSpinButtonBase::SetRange(minVal, maxVal);
 189     ::SendMessage(GetHwnd(), UDM_SETRANGE, 0,
 190                    (LPARAM) MAKELONG((short)maxVal, (short)minVal));
 191 }
 192
 193 bool wxSpinButton::MSWOnScroll(int orientation, WXWORD wParam,
 194                                WXWORD pos, WXHWND control)
 195 {
 196     wxCHECK_MSG( control, FALSE, wxT("scrolling what?") )
 197
 198     if ( wParam != SB_THUMBPOSITION )
 199     {
 200         // probable SB_ENDSCROLL - we don't react to it
 201         return FALSE;
 202     }
 203
 204     wxSpinEvent event(wxEVT_SCROLL_THUMBTRACK, m_windowId);
 205     event.SetPosition((short)pos);    // cast is important for negative values!
 206     event.SetEventObject(this);
 207
 208     return GetEventHandler()->ProcessEvent(event);
 209 }
 210
 211 bool wxSpinButton::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 212 {
 213 #ifndef __GNUWIN32__
 214 #if defined(__BORLANDC__) || defined(__WATCOMC__)
 215     LPNM_UPDOWN lpnmud = (LPNM_UPDOWN)lParam;
 216 #elif defined(__VISUALC__) && (__VISUALC__ >= 1000) && (__VISUALC__ < 1020)
 217     LPNM_UPDOWN lpnmud = (LPNM_UPDOWN)lParam;
 218 #else
 219     LPNMUPDOWN lpnmud = (LPNMUPDOWN)lParam;
 220 #endif
 221
 222     wxSpinEvent event(lpnmud->iDelta > 0 ? wxEVT_SCROLL_LINEUP
 223                                          : wxEVT_SCROLL_LINEDOWN,
 224                       m_windowId);
 225     event.SetPosition(lpnmud->iPos + lpnmud->iDelta);
 226     event.SetEventObject(this);
 227
 228     bool processed = GetEventHandler()->ProcessEvent(event);
 229
 230     *result = event.IsAllowed() ? 0 : 1;
 231
 232     return processed;
 233 #else // GnuWin32
 234     return FALSE;
 235 #endif
 236 }
 237
 238 bool wxSpinButton::MSWCommand(WXUINT cmd, WXWORD id)
 239 {
 240     // No command messages
 241     return FALSE;
 242 }
 243
 244 #endif // __WIN95__
 245
 246 #endif
 247     // wxUSE_SPINCTN
 248