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 #include "wx/spinbutt.h"
  42
  43 IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxNotifyEvent)
  44
  45 #if defined(__WIN95__) && !defined(__TWIN32__)
  46
  47 #include "wx/msw/private.h"
  48
  49 #if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) || defined(__TWIN32__))
  50     #include <commctrl.h>
  51 #endif
  52
  53 // ============================================================================
  54 // implementation
  55 // ============================================================================
  56
  57 // ----------------------------------------------------------------------------
  58 // wxWin macros
  59 // ----------------------------------------------------------------------------
  60
  61 IMPLEMENT_DYNAMIC_CLASS(wxSpinButton, wxControl)
  62
  63 // ----------------------------------------------------------------------------
  64 // wxSpinButton
  65 // ----------------------------------------------------------------------------
  66
  67 bool wxSpinButton::Create(wxWindow *parent,
  68                           wxWindowID id,
  69                           const wxPoint& pos,
  70                           const wxSize& size,
  71                           long style,
  72                           const wxString& name)
  73 {
  74     // basic initialization
  75     InitBase();
  76
  77     m_windowId = (id == -1) ? NewControlId() : id;
  78
  79     m_backgroundColour = parent->GetBackgroundColour() ;
  80     m_foregroundColour = parent->GetForegroundColour() ;
  81
  82     SetName(name);
  83
  84     int x = pos.x;
  85     int y = pos.y;
  86     int width = size.x;
  87     int height = size.y;
  88
  89     m_windowStyle = style;
  90
  91     SetParent(parent);
  92
  93     // get the right size for the control
  94     if ( width <= 0 || height <= 0 )
  95     {
  96         wxSize size = DoGetBestSize();
  97         if ( width <= 0 )
  98             width = size.x;
  99         if ( height <= 0 )
 100             height = size.y;
 101     }
 102
 103     if ( x < 0 )
 104         x = 0;
 105     if ( y < 0 )
 106         y = 0;
 107
 108     // translate the styles
 109     DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP | /*  WS_CLIPSIBLINGS | */
 110                    UDS_NOTHOUSANDS | // never useful, sometimes harmful
 111                    UDS_SETBUDDYINT;  // it doesn't harm if we don't have buddy
 112
 113     if ( m_windowStyle & wxSP_HORIZONTAL )
 114         wstyle |= UDS_HORZ;
 115     if ( m_windowStyle & wxSP_ARROW_KEYS )
 116         wstyle |= UDS_ARROWKEYS;
 117     if ( m_windowStyle & wxSP_WRAP )
 118         wstyle |= UDS_WRAP;
 119
 120     // create the UpDown control.
 121     m_hWnd = (WXHWND)CreateUpDownControl
 122                      (
 123                        wstyle,
 124                        x, y, width, height,
 125                        GetHwndOf(parent),
 126                        m_windowId,
 127                        wxGetInstance(),
 128                        NULL, // no buddy
 129                        m_max, m_min,
 130                        m_min // initial position
 131                      );
 132
 133     if ( !m_hWnd )
 134     {
 135         wxLogLastError(wxT("CreateUpDownControl"));
 136
 137         return FALSE;
 138     }
 139
 140     if ( parent )
 141     {
 142         parent->AddChild(this);
 143     }
 144
 145     SubclassWin(m_hWnd);
 146
 147     return TRUE;
 148 }
 149
 150 wxSpinButton::~wxSpinButton()
 151 {
 152 }
 153
 154 // ----------------------------------------------------------------------------
 155 // size calculation
 156 // ----------------------------------------------------------------------------
 157
 158 wxSize wxSpinButton::DoGetBestSize() const
 159 {
 160     if ( (GetWindowStyle() & wxSP_VERTICAL) != 0 )
 161     {
 162         // vertical control
 163         return wxSize(GetSystemMetrics(SM_CXVSCROLL),
 164                       2*GetSystemMetrics(SM_CYVSCROLL));
 165     }
 166     else
 167     {
 168         // horizontal control
 169         return wxSize(2*GetSystemMetrics(SM_CXHSCROLL),
 170                       GetSystemMetrics(SM_CYHSCROLL));
 171     }
 172 }
 173
 174 // ----------------------------------------------------------------------------
 175 // Attributes
 176 // ----------------------------------------------------------------------------
 177
 178 int wxSpinButton::GetValue() const
 179 {
 180     return (short)LOWORD(::SendMessage(GetHwnd(), UDM_GETPOS, 0, 0));
 181 }
 182
 183 void wxSpinButton::SetValue(int val)
 184 {
 185     ::SendMessage(GetHwnd(), UDM_SETPOS, 0, (LPARAM) MAKELONG((short) val, 0));
 186 }
 187
 188 void wxSpinButton::SetRange(int minVal, int maxVal)
 189 {
 190     wxSpinButtonBase::SetRange(minVal, maxVal);
 191     ::SendMessage(GetHwnd(), UDM_SETRANGE, 0,
 192                    (LPARAM) MAKELONG((short)maxVal, (short)minVal));
 193 }
 194
 195 bool wxSpinButton::MSWOnScroll(int orientation, WXWORD wParam,
 196                                WXWORD pos, WXHWND control)
 197 {
 198     wxCHECK_MSG( control, FALSE, wxT("scrolling what?") )
 199
 200     if ( wParam != SB_THUMBPOSITION )
 201     {
 202         // probable SB_ENDSCROLL - we don't react to it
 203         return FALSE;
 204     }
 205
 206     wxSpinEvent event(wxEVT_SCROLL_THUMBTRACK, m_windowId);
 207     event.SetPosition((short)pos);    // cast is important for negative values!
 208     event.SetEventObject(this);
 209
 210     return GetEventHandler()->ProcessEvent(event);
 211 }
 212
 213 bool wxSpinButton::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 214 {
 215 #ifndef __GNUWIN32__
 216 #if defined(__BORLANDC__) || defined(__WATCOMC__)
 217     LPNM_UPDOWN lpnmud = (LPNM_UPDOWN)lParam;
 218 #elif defined(__VISUALC__) && (__VISUALC__ >= 1000) && (__VISUALC__ < 1020)
 219     LPNM_UPDOWN lpnmud = (LPNM_UPDOWN)lParam;
 220 #else
 221     LPNMUPDOWN lpnmud = (LPNMUPDOWN)lParam;
 222 #endif
 223
 224     if (lpnmud->hdr.hwndFrom != GetHwnd()) // make sure it is the right control
 225         return FALSE;
 226
 227     wxSpinEvent event(lpnmud->iDelta > 0 ? wxEVT_SCROLL_LINEUP
 228                                          : wxEVT_SCROLL_LINEDOWN,
 229                       m_windowId);
 230     event.SetPosition(lpnmud->iPos + lpnmud->iDelta);
 231     event.SetEventObject(this);
 232
 233     bool processed = GetEventHandler()->ProcessEvent(event);
 234
 235     *result = event.IsAllowed() ? 0 : 1;
 236
 237     return processed;
 238 #else // GnuWin32
 239     return FALSE;
 240 #endif
 241 }
 242
 243 bool wxSpinButton::MSWCommand(WXUINT cmd, WXWORD id)
 244 {
 245     // No command messages
 246     return FALSE;
 247 }
 248
 249 #endif // __WIN95__
 250
 251 #endif
 252     // wxUSE_SPINCTN
 253