src/osx/spinctrl_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/spinctrl_osx.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 #include "wx/wxprec.h"
  12
  13 #if wxUSE_SPINCTRL
  14
  15 #include "wx/spinctrl.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/textctrl.h"
  19     #include "wx/containr.h"
  20 #endif
  21
  22 #include "wx/spinbutt.h"
  23
  24 // ----------------------------------------------------------------------------
  25 // constants
  26 // ----------------------------------------------------------------------------
  27
  28 // the focus rect around a text may have 4 pixels in each direction
  29 // we handle these problems right now in an extended vis region of a window
  30 static const wxCoord TEXTBORDER = 4 ;
  31 // the margin between the text control and the spin
  32 // HIG says 2px between text and stepper control,
  33 // but a value of 3 leads to the same look as the
  34 // spin controls in Apple's apps
  35 static const wxCoord MARGIN = 3;
  36
  37 // ----------------------------------------------------------------------------
  38 // wxSpinCtrlText: text control used by spin control
  39 // ----------------------------------------------------------------------------
  40
  41 class wxSpinCtrlText : public wxTextCtrl
  42 {
  43 public:
  44     wxSpinCtrlText(wxSpinCtrl *spin, const wxString& value, int style)
  45         : wxTextCtrl(spin , wxID_ANY, value, wxDefaultPosition, wxSize(40, wxDefaultCoord), style )
  46     {
  47         m_spin = spin;
  48
  49         // remove the default minsize, the spinctrl will have one instead
  50         SetMinSize(wxDefaultSize);
  51     }
  52
  53     bool ProcessEvent(wxEvent &event)
  54     {
  55         // Hand button down events to wxSpinCtrl. Doesn't work.
  56         if (event.GetEventType() == wxEVT_LEFT_DOWN && m_spin->ProcessEvent( event ))
  57             return true;
  58
  59         return wxTextCtrl::ProcessEvent( event );
  60     }
  61
  62 protected:
  63      void OnSetFocus(wxFocusEvent& event)
  64      {
  65          // delegate to parent control
  66          event.SetEventObject( GetParent() );
  67          GetParent()->HandleWindowEvent(event);
  68      }
  69
  70      void OnKillFocus(wxFocusEvent& event)
  71      {
  72          long l;
  73          if ( !GetValue().ToLong(&l) )
  74          {
  75              // not a number at all
  76              return;
  77          }
  78
  79          // is within range
  80          if (l < m_spin->GetMin())
  81              l = m_spin->GetMin();
  82          if (l > m_spin->GetMax())
  83              l = m_spin->GetMax();
  84
  85          // Update text control
  86          wxString str;
  87          str.Printf( wxT("%d"), (int)l );
  88          if (str != GetValue())
  89              SetValue( str );
  90
  91          if (l != m_spin->m_oldValue)
  92          {
  93              // set value in spin button
  94              // does that trigger an event?
  95              m_spin->m_btn->SetValue( l );
  96
  97              // if not
  98              wxCommandEvent cevent(wxEVT_COMMAND_SPINCTRL_UPDATED, m_spin->GetId());
  99              cevent.SetEventObject(m_spin);
 100              cevent.SetInt(l);
 101              m_spin->HandleWindowEvent(cevent);
 102
 103              m_spin->m_oldValue = l;
 104          }
 105
 106          // delegate to parent control
 107          event.SetEventObject( GetParent() );
 108          GetParent()->HandleWindowEvent(event);
 109     }
 110
 111     void OnTextChange(wxCommandEvent& event)
 112     {
 113         int val;
 114         if ( m_spin->GetTextValue(&val) )
 115         {
 116             m_spin->GetSpinButton()->SetValue(val);
 117
 118             // If we're already processing a text update from m_spin,
 119             // don't send it again, since we could end up recursing
 120             // infinitely.
 121             if (event.GetId() == m_spin->GetId())
 122             {
 123                 event.Skip();
 124                 return;
 125             }
 126
 127             // Send event that the text was manually changed
 128             wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_spin->GetId());
 129             event.SetEventObject(m_spin);
 130             event.SetString(m_spin->GetText()->GetValue());
 131             event.SetInt(val);
 132
 133             m_spin->HandleWindowEvent(event);
 134         }
 135
 136         event.Skip();
 137     }
 138
 139 private:
 140     wxSpinCtrl *m_spin;
 141
 142     DECLARE_EVENT_TABLE()
 143 };
 144
 145 BEGIN_EVENT_TABLE(wxSpinCtrlText, wxTextCtrl)
 146     EVT_TEXT(wxID_ANY, wxSpinCtrlText::OnTextChange)
 147     EVT_SET_FOCUS(wxSpinCtrlText::OnSetFocus)
 148     EVT_KILL_FOCUS(wxSpinCtrlText::OnKillFocus)
 149 END_EVENT_TABLE()
 150
 151 // ----------------------------------------------------------------------------
 152 // wxSpinCtrlButton: spin button used by spin control
 153 // ----------------------------------------------------------------------------
 154
 155 class wxSpinCtrlButton : public wxSpinButton
 156 {
 157 public:
 158     wxSpinCtrlButton(wxSpinCtrl *spin, int style)
 159         : wxSpinButton(spin )
 160     {
 161         m_spin = spin;
 162         SetWindowStyle(style | wxSP_VERTICAL);
 163
 164         // TODO: The spin button gets truncated a little bit due to size
 165         // differences so change it's default size a bit.  SMALL still gets a
 166         // bit truncated, but MINI seems to be too small...  Readdress this
 167         // when the textctrl issues are all sorted out.
 168         //SetWindowVariant(wxWINDOW_VARIANT_SMALL);
 169
 170         // remove the default minsize, the spinctrl will have one instead
 171         SetMinSize(wxDefaultSize);
 172     }
 173
 174 protected:
 175     void OnSpinButton(wxSpinEvent& eventSpin)
 176     {
 177         int pos = eventSpin.GetPosition();
 178         m_spin->SetTextValue(pos);
 179
 180         wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, m_spin->GetId());
 181         event.SetEventObject(m_spin);
 182         event.SetInt(pos);
 183
 184         m_spin->HandleWindowEvent(event);
 185
 186         m_spin->m_oldValue = pos;
 187     }
 188
 189 private:
 190     wxSpinCtrl *m_spin;
 191
 192     DECLARE_EVENT_TABLE()
 193 };
 194
 195 BEGIN_EVENT_TABLE(wxSpinCtrlButton, wxSpinButton)
 196     EVT_SPIN(wxID_ANY, wxSpinCtrlButton::OnSpinButton)
 197 END_EVENT_TABLE()
 198
 199 // ============================================================================
 200 // implementation
 201 // ============================================================================
 202
 203 // ----------------------------------------------------------------------------
 204 // wxSpinCtrl creation
 205 // ----------------------------------------------------------------------------
 206
 207 void wxSpinCtrl::Init()
 208 {
 209     m_text = NULL;
 210     m_btn = NULL;
 211 }
 212
 213 bool wxSpinCtrl::Create(wxWindow *parent,
 214                         wxWindowID id,
 215                         const wxString& value,
 216                         const wxPoint& pos,
 217                         const wxSize& size,
 218                         long style,
 219                         int min,
 220                         int max,
 221                         int initial,
 222                         const wxString& name)
 223 {
 224     if ( !wxControl::Create(parent, id, pos, size, style,
 225                             wxDefaultValidator, name) )
 226     {
 227         return false;
 228     }
 229
 230     // the string value overrides the numeric one (for backwards compatibility
 231     // reasons and also because it is simpler to satisfy the string value which
 232     // comes much sooner in the list of arguments and leave the initial
 233     // parameter unspecified)
 234     if ( !value.empty() )
 235     {
 236         long l;
 237         if ( value.ToLong(&l) )
 238             initial = l;
 239     }
 240
 241     wxSize csize = size ;
 242     m_text = new wxSpinCtrlText(this, value, style & ( wxTE_PROCESS_ENTER | wxALIGN_MASK ) );
 243     m_btn = new wxSpinCtrlButton(this, style);
 244
 245     m_btn->SetRange(min, max);
 246     m_btn->SetValue(initial);
 247     // make it different
 248     m_oldValue = GetMin()-1;
 249
 250     if ( size.x == wxDefaultCoord ){
 251         csize.x = m_text->GetSize().x + MARGIN + m_btn->GetSize().x ;
 252     }
 253
 254     if ( size.y == wxDefaultCoord ) {
 255         csize.y = m_text->GetSize().y + 2 * TEXTBORDER ; //allow for text border highlights
 256         if ( m_btn->GetSize().y > csize.y )
 257             csize.y = m_btn->GetSize().y ;
 258     }
 259
 260     //SetSize(csize);
 261
 262     //MacPostControlCreate(pos, csize);
 263     SetInitialSize(csize);
 264
 265     return true;
 266 }
 267
 268 wxSpinCtrl::~wxSpinCtrl()
 269 {
 270     // delete the controls now, don't leave them alive even though they would
 271     // still be eventually deleted by our parent - but it will be too late, the
 272     // user code expects them to be gone now
 273     wxDELETE(m_text);
 274     wxDELETE(m_btn);
 275 }
 276
 277 // ----------------------------------------------------------------------------
 278 // geometry
 279 // ----------------------------------------------------------------------------
 280
 281 wxSize wxSpinCtrl::DoGetBestSize() const
 282 {
 283     if (!m_btn || !m_text)
 284         return GetSize();
 285
 286     wxSize sizeBtn = m_btn->GetBestSize(),
 287            sizeText = m_text->GetBestSize();
 288
 289     sizeText.y += 2 * TEXTBORDER ;
 290     sizeText.x += 2 * TEXTBORDER ;
 291
 292     int height;
 293     if (sizeText.y > sizeBtn.y)
 294         height = sizeText.y;
 295     else
 296         height = sizeBtn.y;
 297
 298     return wxSize(sizeBtn.x + sizeText.x + MARGIN, height );
 299 }
 300
 301 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 302 {
 303     // position the subcontrols inside the client area
 304     wxSize sizeBtn = m_btn->GetSize();
 305     wxSize sizeText = m_text->GetSize();
 306
 307     wxControl::DoMoveWindow(x, y, width, height);
 308
 309     wxCoord wText = width - sizeBtn.x - MARGIN - 2 * TEXTBORDER;
 310
 311     m_text->SetSize(TEXTBORDER, (height - sizeText.y) / 2, wText, -1);
 312     m_btn->SetSize(0 + wText + MARGIN + TEXTBORDER , (height - sizeBtn.y) / 2 , -1, -1 );
 313 }
 314
 315 // ----------------------------------------------------------------------------
 316 // operations forwarded to the subcontrols
 317 // ----------------------------------------------------------------------------
 318
 319 bool wxSpinCtrl::Enable(bool enable)
 320 {
 321     if ( !wxControl::Enable(enable) )
 322         return false;
 323     m_text->Enable(enable);
 324     m_btn->Enable(enable);
 325     return true;
 326 }
 327
 328 bool wxSpinCtrl::Show(bool show)
 329 {
 330     if ( !wxControl::Show(show) )
 331         return false;
 332     return true;
 333 }
 334
 335 // ----------------------------------------------------------------------------
 336 // value and range access
 337 // ----------------------------------------------------------------------------
 338
 339 bool wxSpinCtrl::GetTextValue(int *val) const
 340 {
 341     long l;
 342     if ( !m_text->GetValue().ToLong(&l) )
 343     {
 344         // not a number at all
 345         return false;
 346     }
 347
 348     if ( l < GetMin() || l > GetMax() )
 349     {
 350         // out of range
 351         return false;
 352     }
 353
 354     *val = l;
 355
 356     return true;
 357 }
 358
 359 int wxSpinCtrl::GetValue() const
 360 {
 361     return m_btn ? m_btn->GetValue() : 0;
 362 }
 363
 364 int wxSpinCtrl::GetMin() const
 365 {
 366     return m_btn ? m_btn->GetMin() : 0;
 367 }
 368
 369 int wxSpinCtrl::GetMax() const
 370 {
 371     return m_btn ? m_btn->GetMax() : 0;
 372 }
 373
 374 // ----------------------------------------------------------------------------
 375 // changing value and range
 376 // ----------------------------------------------------------------------------
 377
 378 void wxSpinCtrl::SetTextValue(int val)
 379 {
 380     wxCHECK_RET( m_text, wxT("invalid call to wxSpinCtrl::SetTextValue") );
 381
 382     m_text->SetValue(wxString::Format(wxT("%d"), val));
 383
 384     // select all text
 385     m_text->SetSelection(0, -1);
 386
 387     m_text->SetInsertionPointEnd();
 388
 389     // and give focus to the control!
 390     // m_text->SetFocus();    Why???? TODO.
 391 }
 392
 393 void wxSpinCtrl::SetValue(int val)
 394 {
 395     wxCHECK_RET( m_btn, wxT("invalid call to wxSpinCtrl::SetValue") );
 396
 397     SetTextValue(val);
 398
 399     m_btn->SetValue(val);
 400     m_oldValue = val;
 401 }
 402
 403 void wxSpinCtrl::SetValue(const wxString& text)
 404 {
 405     wxCHECK_RET( m_text, wxT("invalid call to wxSpinCtrl::SetValue") );
 406
 407     long val;
 408     if ( text.ToLong(&val) && ((val > INT_MIN) && (val < INT_MAX)) )
 409     {
 410         SetValue((int)val);
 411     }
 412     else // not a number at all or out of range
 413     {
 414         m_text->SetValue(text);
 415         m_text->SetSelection(0, -1);
 416     }
 417 }
 418
 419 void wxSpinCtrl::SetRange(int min, int max)
 420 {
 421     wxCHECK_RET( m_btn, wxT("invalid call to wxSpinCtrl::SetRange") );
 422
 423     m_btn->SetRange(min, max);
 424 }
 425
 426 void wxSpinCtrl::SetSelection(long from, long to)
 427 {
 428     // if from and to are both -1, it means (in wxWidgets) that all text should
 429     // be selected
 430     if ( (from == -1) && (to == -1) )
 431     {
 432         from = 0;
 433     }
 434     m_text->SetSelection(from, to);
 435 }
 436
 437 #endif // wxUSE_SPINCTRL