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 defined(__WIN95__) && !defined(__TWIN32__)
  39
  40 #include "wx/spinbutt.h"
  41 #include "wx/msw/private.h"
  42
  43 #if !defined(__GNUWIN32__) || defined(__TWIN32__) || defined(wxUSE_NORLANDER_HEADERS)
  44     #include <commctrl.h>
  45 #endif
  46
  47 // ============================================================================
  48 // implementation
  49 // ============================================================================
  50
  51 // ----------------------------------------------------------------------------
  52 // wxWin macros
  53 // ----------------------------------------------------------------------------
  54
  55 #if !USE_SHARED_LIBRARY
  56     IMPLEMENT_DYNAMIC_CLASS(wxSpinButton, wxControl)
  57     IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxScrollEvent);
  58 #endif
  59
  60 // ----------------------------------------------------------------------------
  61 // wxSpinButton
  62 // ----------------------------------------------------------------------------
  63
  64 bool wxSpinButton::Create(wxWindow *parent,
  65                           wxWindowID id,
  66                           const wxPoint& pos,
  67                           const wxSize& size,
  68                           long style,
  69                           const wxString& name)
  70 {
  71     // basic initialization
  72     InitBase();
  73
  74     m_windowId = (id == -1) ? NewControlId() : id;
  75
  76     m_backgroundColour = parent->GetBackgroundColour() ;
  77     m_foregroundColour = parent->GetForegroundColour() ;
  78
  79     SetName(name);
  80
  81     int x = pos.x;
  82     int y = pos.y;
  83     int width = size.x;
  84     int height = size.y;
  85
  86     m_windowStyle = style;
  87
  88     SetParent(parent);
  89
  90     // get the right size for the control
  91     if ( width <= 0 || height <= 0 )
  92     {
  93         wxSize size = DoGetBestSize();
  94         if ( width <= 0 )
  95             width = size.x;
  96         if ( height <= 0 )
  97             height = size.y;
  98     }
  99
 100     if ( x < 0 )
 101         x = 0;
 102     if ( y < 0 )
 103         y = 0;
 104
 105     // translate the styles
 106     DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP |
 107                    UDS_SETBUDDYINT; // it doesn't harm if we don't have buddy
 108
 109     if ( m_windowStyle & wxSP_HORIZONTAL )
 110         wstyle |= UDS_HORZ;
 111     if ( m_windowStyle & wxSP_ARROW_KEYS )
 112         wstyle |= UDS_ARROWKEYS;
 113     if ( m_windowStyle & wxSP_WRAP )
 114         wstyle |= UDS_WRAP;
 115
 116     // create the UpDown control.
 117     m_hWnd = (WXHWND)CreateUpDownControl
 118                      (
 119                        wstyle,
 120                        x, y, width, height,
 121                        GetHwndOf(parent),
 122                        m_windowId,
 123                        wxGetInstance(),
 124                        NULL, // no buddy
 125                        m_max, m_min,
 126                        m_min // initial position
 127                      );
 128
 129     if ( !m_hWnd )
 130     {
 131         wxLogLastError("CreateUpDownControl");
 132
 133         return FALSE;
 134     }
 135
 136     if ( parent )
 137     {
 138         parent->AddChild(this);
 139     }
 140
 141     SubclassWin(m_hWnd);
 142
 143     return TRUE;
 144 }
 145
 146 wxSpinButton::~wxSpinButton()
 147 {
 148 }
 149
 150 // ----------------------------------------------------------------------------
 151 // size calculation
 152 // ----------------------------------------------------------------------------
 153
 154 wxSize wxSpinButton::DoGetBestSize()
 155 {
 156     if ( (GetWindowStyle() & wxSP_VERTICAL) != 0 )
 157     {
 158         // vertical control
 159         return wxSize(GetSystemMetrics(SM_CXVSCROLL),
 160                       2*GetSystemMetrics(SM_CYVSCROLL));
 161     }
 162     else
 163     {
 164         // horizontal control
 165         return wxSize(2*GetSystemMetrics(SM_CXHSCROLL),
 166                       GetSystemMetrics(SM_CYHSCROLL));
 167     }
 168 }
 169
 170 // ----------------------------------------------------------------------------
 171 // Attributes
 172 // ----------------------------------------------------------------------------
 173
 174 int wxSpinButton::GetValue() const
 175 {
 176     return (short)LOWORD(::SendMessage(GetHwnd(), UDM_GETPOS, 0, 0));
 177 }
 178
 179 void wxSpinButton::SetValue(int val)
 180 {
 181     ::SendMessage(GetHwnd(), UDM_SETPOS, 0, (LPARAM) MAKELONG((short) val, 0));
 182 }
 183
 184 void wxSpinButton::SetRange(int minVal, int maxVal)
 185 {
 186     wxSpinButtonBase::SetRange(minVal, maxVal);
 187     ::SendMessage(GetHwnd(), UDM_SETRANGE, 0,
 188                    (LPARAM) MAKELONG((short)maxVal, (short)minVal));
 189 }
 190
 191 bool wxSpinButton::MSWOnScroll(int orientation, WXWORD wParam,
 192                                WXWORD pos, WXHWND control)
 193 {
 194     wxCHECK_MSG( control, FALSE, wxT("scrolling what?") )
 195
 196     if ( wParam != SB_THUMBPOSITION )
 197     {
 198         // probable SB_ENDSCROLL - we don't react to it
 199         return FALSE;
 200     }
 201
 202     wxSpinEvent event(wxEVT_SCROLL_THUMBTRACK, m_windowId);
 203     event.SetPosition((short)pos);    // cast is important for negative values!
 204     event.SetEventObject(this);
 205
 206     return GetEventHandler()->ProcessEvent(event);
 207 }
 208
 209 bool wxSpinButton::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 210 {
 211 #ifndef __GNUWIN32__
 212 #ifdef __BORLANDC__
 213     LPNM_UPDOWN lpnmud = (LPNM_UPDOWN)lParam;
 214 #elif defined(__VISUALC__) && (__VISUALC__ == 1010)
 215     LPNM_UPDOWN lpnmud = (LPNM_UPDOWN)lParam;
 216 #else
 217     LPNMUPDOWN lpnmud = (LPNMUPDOWN)lParam;
 218 #endif
 219
 220     wxSpinEvent event(lpnmud->iDelta > 0 ? wxEVT_SCROLL_LINEUP
 221                                          : wxEVT_SCROLL_LINEDOWN,
 222                       m_windowId);
 223     event.SetPosition(lpnmud->iPos + lpnmud->iDelta);
 224     event.SetEventObject(this);
 225
 226     bool processed = GetEventHandler()->ProcessEvent(event);
 227
 228     *result = event.IsAllowed() ? 0 : 1;
 229
 230     return processed;
 231 #else // GnuWin32
 232     return FALSE;
 233 #endif
 234 }
 235
 236 bool wxSpinButton::MSWCommand(WXUINT cmd, WXWORD id)
 237 {
 238     // No command messages
 239     return FALSE;
 240 }
 241
 242 #endif // __WIN95__