src/mac/carbon/spinctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        spinbutt.cpp
   3 // Purpose:     wxSpinCtrl
   4 // Author:      Robert
   5 // Modified by: Mark Newsam (Based on GTK file)
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  12 #pragma implementation "spinctrl.h"
  13 #endif
  14
  15 #include "wx/defs.h"
  16
  17 #if wxUSE_SPINCTRL
  18
  19 #include "wx/spinbutt.h"
  20 #include "wx/spinctrl.h"
  21 #include "wx/textctrl.h"
  22
  23
  24 // ----------------------------------------------------------------------------
  25 // constants
  26 // ----------------------------------------------------------------------------
  27
  28 // the margin between the text control and the spin
  29 static const wxCoord MARGIN = 2;
  30
  31 // ----------------------------------------------------------------------------
  32 // wxSpinCtrlText: text control used by spin control
  33 // ----------------------------------------------------------------------------
  34
  35 class wxSpinCtrlText : public wxTextCtrl
  36 {
  37 public:
  38     wxSpinCtrlText(wxSpinCtrl *spin, const wxString& value)
  39         : wxTextCtrl(spin , -1, value)
  40     {
  41         m_spin = spin;
  42
  43         // remove the default minsize, the spinctrl will have one instead
  44         SetSizeHints(-1,-1);
  45     }
  46
  47 protected:
  48     void OnTextChange(wxCommandEvent& event)
  49     {
  50         int val;
  51         if ( m_spin->GetTextValue(&val) )
  52         {
  53             m_spin->GetSpinButton()->SetValue(val);
  54         }
  55
  56         event.Skip();
  57     }
  58
  59     bool ProcessEvent(wxEvent &event)
  60     {
  61         // Hand button down events to wxSpinCtrl. Doesn't work.
  62         if (event.GetEventType() == wxEVT_LEFT_DOWN && m_spin->ProcessEvent( event ))
  63             return TRUE;
  64
  65         return wxTextCtrl::ProcessEvent( event );
  66     }
  67
  68 private:
  69     wxSpinCtrl *m_spin;
  70
  71     DECLARE_EVENT_TABLE()
  72 };
  73
  74 BEGIN_EVENT_TABLE(wxSpinCtrlText, wxTextCtrl)
  75     EVT_TEXT(-1, wxSpinCtrlText::OnTextChange)
  76 END_EVENT_TABLE()
  77
  78 // ----------------------------------------------------------------------------
  79 // wxSpinCtrlButton: spin button used by spin control
  80 // ----------------------------------------------------------------------------
  81
  82 class wxSpinCtrlButton : public wxSpinButton
  83 {
  84 public:
  85     wxSpinCtrlButton(wxSpinCtrl *spin, int style)
  86         : wxSpinButton(spin )
  87     {
  88         m_spin = spin;
  89         SetWindowStyle(style | wxSP_VERTICAL);
  90
  91         // TODO: The spin button gets truncated a little bit due to size
  92         // differences so change it's default size a bit.  SMALL still gets a
  93         // bit truncated, but MINI seems to be too small...  Readdress this
  94         // when the textctrl issues are all sorted out.
  95         SetWindowVariant(wxWINDOW_VARIANT_SMALL);
  96
  97         // remove the default minsize, the spinctrl will have one instead
  98         SetSizeHints(-1,-1);
  99     }
 100
 101 protected:
 102     void OnSpinButton(wxSpinEvent& eventSpin)
 103     {
 104       m_spin->SetTextValue(eventSpin.GetPosition());
 105
 106       wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, m_spin->GetId());
 107       event.SetEventObject(m_spin);
 108       event.SetInt(eventSpin.GetPosition());
 109
 110       m_spin->GetEventHandler()->ProcessEvent(event);
 111     }
 112
 113 private:
 114     wxSpinCtrl *m_spin;
 115
 116     DECLARE_EVENT_TABLE()
 117 };
 118
 119 BEGIN_EVENT_TABLE(wxSpinCtrlButton, wxSpinButton)
 120     EVT_SPIN(-1, wxSpinCtrlButton::OnSpinButton)
 121 END_EVENT_TABLE()
 122
 123 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
 124
 125 // ============================================================================
 126 // implementation
 127 // ============================================================================
 128
 129 // ----------------------------------------------------------------------------
 130 // wxSpinCtrl creation
 131 // ----------------------------------------------------------------------------
 132
 133 void wxSpinCtrl::Init()
 134 {
 135     m_text = NULL;
 136     m_btn = NULL;
 137 }
 138
 139 bool wxSpinCtrl::Create(wxWindow *parent,
 140                         wxWindowID id,
 141                         const wxString& value,
 142                         const wxPoint& pos,
 143                         const wxSize& size,
 144                         long style,
 145                         int min,
 146                         int max,
 147                         int initial,
 148                         const wxString& name)
 149 {
 150     if ( !wxControl::Create(parent, id, wxDefaultPosition, wxDefaultSize, style,
 151                             wxDefaultValidator, name) )
 152     {
 153         return FALSE;
 154     }
 155
 156     // the string value overrides the numeric one (for backwards compatibility
 157     // reasons and also because it is simpler to satisfy the string value which
 158     // comes much sooner in the list of arguments and leave the initial
 159     // parameter unspecified)
 160     if ( !value.empty() )
 161     {
 162         long l;
 163         if ( value.ToLong(&l) )
 164             initial = l;
 165     }
 166
 167     wxSize csize = size ;
 168     m_text = new wxSpinCtrlText(this, value);
 169     m_btn = new wxSpinCtrlButton(this, style);
 170
 171     m_btn->SetRange(min, max);
 172     m_btn->SetValue(initial);
 173
 174     if ( size.y == -1 ) {
 175       csize.y = m_text->GetSize().y ;
 176     }
 177     SetBestSize(csize);
 178
 179     return TRUE;
 180 }
 181
 182 wxSpinCtrl::~wxSpinCtrl()
 183 {
 184     // delete the controls now, don't leave them alive even though they would
 185     // still be eventually deleted by our parent - but it will be too late, the
 186     // user code expects them to be gone now
 187     delete m_text;
 188     m_text = NULL ;
 189     delete m_btn;
 190     m_btn = NULL ;
 191 }
 192
 193 // ----------------------------------------------------------------------------
 194 // geometry
 195 // ----------------------------------------------------------------------------
 196
 197 wxSize wxSpinCtrl::DoGetBestSize() const
 198 {
 199     if (!m_btn || !m_text)
 200         return GetSize();
 201
 202     wxSize sizeBtn = m_btn->GetBestSize(),
 203            sizeText = m_text->GetBestSize();
 204
 205     return wxSize(sizeBtn.x + sizeText.x + MARGIN, sizeText.y);
 206 }
 207
 208 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 209 {
 210     wxControl::DoMoveWindow(x, y, width, height);
 211
 212     // position the subcontrols inside the client area
 213     wxSize sizeBtn = m_btn->GetSize();
 214
 215     wxCoord wText = width - sizeBtn.x;
 216     m_text->SetSize(0, 0, wText, height);
 217     m_btn->SetSize(0 + wText + MARGIN, 0, -1, height);
 218 }
 219
 220 // ----------------------------------------------------------------------------
 221 // operations forwarded to the subcontrols
 222 // ----------------------------------------------------------------------------
 223
 224 bool wxSpinCtrl::Enable(bool enable)
 225 {
 226     if ( !wxControl::Enable(enable) )
 227         return FALSE;
 228     return TRUE;
 229 }
 230
 231 bool wxSpinCtrl::Show(bool show)
 232 {
 233     if ( !wxControl::Show(show) )
 234         return FALSE;
 235     return TRUE;
 236 }
 237
 238 // ----------------------------------------------------------------------------
 239 // value and range access
 240 // ----------------------------------------------------------------------------
 241
 242 bool wxSpinCtrl::GetTextValue(int *val) const
 243 {
 244     long l;
 245     if ( !m_text->GetValue().ToLong(&l) )
 246     {
 247         // not a number at all
 248         return FALSE;
 249     }
 250
 251     if ( l < GetMin() || l > GetMax() )
 252     {
 253         // out of range
 254         return FALSE;
 255     }
 256
 257     *val = l;
 258
 259     return TRUE;
 260 }
 261
 262 int wxSpinCtrl::GetValue() const
 263 {
 264     return m_btn ? m_btn->GetValue() : 0;
 265 }
 266
 267 int wxSpinCtrl::GetMin() const
 268 {
 269     return m_btn ? m_btn->GetMin() : 0;
 270 }
 271
 272 int wxSpinCtrl::GetMax() const
 273 {
 274     return m_btn ? m_btn->GetMax() : 0;
 275 }
 276
 277 // ----------------------------------------------------------------------------
 278 // changing value and range
 279 // ----------------------------------------------------------------------------
 280
 281 void wxSpinCtrl::SetTextValue(int val)
 282 {
 283     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetTextValue") );
 284
 285     m_text->SetValue(wxString::Format(_T("%d"), val));
 286
 287     // select all text
 288     m_text->SetSelection(0, -1);
 289
 290     // and give focus to the control!
 291     // m_text->SetFocus();    Why???? TODO.
 292 }
 293
 294 void wxSpinCtrl::SetValue(int val)
 295 {
 296     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetValue") );
 297
 298     SetTextValue(val);
 299
 300     m_btn->SetValue(val);
 301 }
 302
 303 void wxSpinCtrl::SetValue(const wxString& text)
 304 {
 305     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetValue") );
 306
 307     long val;
 308     if ( text.ToLong(&val) && ((val > INT_MIN) && (val < INT_MAX)) )
 309     {
 310         SetValue((int)val);
 311     }
 312     else // not a number at all or out of range
 313     {
 314         m_text->SetValue(text);
 315         m_text->SetSelection(0, -1);
 316     }
 317 }
 318
 319 void wxSpinCtrl::SetRange(int min, int max)
 320 {
 321     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetRange") );
 322
 323     m_btn->SetRange(min, max);
 324 }
 325
 326 void wxSpinCtrl::SetSelection(long from, long to)
 327 {
 328     // if from and to are both -1, it means (in wxWidgets) that all text should
 329     // be selected
 330     if ( (from == -1) && (to == -1) )
 331     {
 332         from = 0;
 333     }
 334     m_text->SetSelection(from, to);
 335 }
 336
 337 #endif // wxUSE_SPINCTRL