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 #ifdef __GNUG__
  13     #pragma implementation "spinbutt.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/wx.h"
  25 #endif
  26
  27 // Can't resolve reference to CreateUpDownControl in
  28 // TWIN32, but could probably use normal CreateWindow instead.
  29
  30 #if defined(__WIN95__) && !defined(__TWIN32__)
  31
  32 #include "wx/spinbutt.h"
  33 #include "wx/msw/private.h"
  34
  35 #if !defined(__GNUWIN32__) || defined(__TWIN32__)
  36     #include <commctrl.h>
  37 #endif
  38
  39 #if !USE_SHARED_LIBRARY
  40     IMPLEMENT_DYNAMIC_CLASS(wxSpinButton, wxControl)
  41     IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxScrollEvent);
  42 #endif
  43
  44 bool wxSpinButton::Create(wxWindow *parent,
  45                           wxWindowID id,
  46                           const wxPoint& pos,
  47                           const wxSize& size,
  48                           long style,
  49                           const wxString& name)
  50 {
  51   wxSystemSettings settings;
  52   m_backgroundColour = parent->GetBackgroundColour() ;
  53   m_foregroundColour = parent->GetForegroundColour() ;
  54
  55   SetName(name);
  56
  57   int x = pos.x;
  58   int y = pos.y;
  59   int width = size.x;
  60   int height = size.y;
  61
  62   m_windowStyle = style;
  63
  64   SetParent(parent);
  65
  66   if (width <= 0)
  67     width = 100;
  68   if (height <= 0)
  69     height = 30;
  70   if (x < 0)
  71     x = 0;
  72   if (y < 0)
  73     y = 0;
  74
  75   InitBase();
  76
  77   m_windowId = (id == -1) ? NewControlId() : id;
  78
  79   DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP;
  80
  81   if ( m_windowStyle & wxSP_HORIZONTAL )
  82     wstyle |= UDS_HORZ;
  83   if ( m_windowStyle & wxSP_ARROW_KEYS )
  84     wstyle |= UDS_ARROWKEYS;
  85   if ( m_windowStyle & wxSP_WRAP )
  86     wstyle |= UDS_WRAP;
  87
  88   // Create the ListView control.
  89   HWND hWndListControl = CreateUpDownControl(wstyle,
  90     x, y, width, height,
  91     (HWND) parent->GetHWND(),
  92     m_windowId,
  93     wxGetInstance(),
  94     0,
  95     m_min, m_max, m_min);
  96
  97   m_hWnd = (WXHWND) hWndListControl;
  98   if (parent) parent->AddChild(this);
  99
 100   // TODO: have this for all controls.
 101   if ( !m_hWnd )
 102     return FALSE;
 103
 104   SubclassWin((WXHWND) m_hWnd);
 105
 106   return TRUE;
 107 }
 108
 109 wxSpinButton::~wxSpinButton()
 110 {
 111 }
 112
 113 // Attributes
 114 ////////////////////////////////////////////////////////////////////////////
 115
 116 int wxSpinButton::GetValue() const
 117 {
 118     return (short)LOWORD(::SendMessage(GetHwnd(), UDM_GETPOS, 0, 0));
 119 }
 120
 121 void wxSpinButton::SetValue(int val)
 122 {
 123     ::SendMessage(GetHwnd(), UDM_SETPOS, 0, (LPARAM) MAKELONG((short) val, 0));
 124 }
 125
 126 void wxSpinButton::SetRange(int minVal, int maxVal)
 127 {
 128     wxSpinButtonBase::SetRange(minVal, maxVal);
 129     ::SendMessage(GetHwnd(), UDM_SETRANGE, 0,
 130                    (LPARAM) MAKELONG((short)maxVal, (short)minVal));
 131 }
 132
 133 bool wxSpinButton::MSWOnScroll(int orientation, WXWORD wParam,
 134                                WXWORD pos, WXHWND control)
 135 {
 136     wxCHECK_MSG( control, FALSE, _T("scrolling what?") )
 137
 138     if ( wParam != SB_THUMBPOSITION )
 139     {
 140         // probable SB_ENDSCROLL - we don't react to it
 141         return FALSE;
 142     }
 143
 144     wxSpinEvent event(wxEVT_SCROLL_THUMBTRACK, m_windowId);
 145     event.SetPosition((short)pos);    // cast is important for negative values!
 146     event.SetEventObject(this);
 147
 148     return GetEventHandler()->ProcessEvent(event);
 149 }
 150
 151 bool wxSpinButton::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 152 {
 153     LPNMUPDOWN lpnmud = (LPNMUPDOWN)lParam;
 154
 155     wxSpinEvent event(lpnmud->iDelta > 0 ? wxEVT_SCROLL_LINEUP
 156                                          : wxEVT_SCROLL_LINEDOWN,
 157                       m_windowId);
 158     event.SetPosition(lpnmud->iPos + lpnmud->iDelta);
 159     event.SetEventObject(this);
 160
 161     bool processed = GetEventHandler()->ProcessEvent(event);
 162
 163     *result = event.IsAllowed() ? 0 : 1;
 164
 165     return processed;
 166 }
 167
 168 bool wxSpinButton::MSWCommand(WXUINT cmd, WXWORD id)
 169 {
 170     // No command messages
 171     return FALSE;
 172 }
 173
 174 #endif // __WIN95__