src/mac/carbon/spinctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/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 #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 static const wxCoord MARGIN = 8 - TEXTBORDER;
  33
  34 // ----------------------------------------------------------------------------
  35 // wxSpinCtrlText: text control used by spin control
  36 // ----------------------------------------------------------------------------
  37
  38 class wxSpinCtrlText : public wxTextCtrl
  39 {
  40 public:
  41     wxSpinCtrlText(wxSpinCtrl *spin, const wxString& value)
  42         : wxTextCtrl(spin , wxID_ANY, value, wxDefaultPosition, wxSize(40, wxDefaultCoord))
  43     {
  44         m_spin = spin;
  45
  46         // remove the default minsize, the spinctrl will have one instead
  47         SetMinSize(wxDefaultSize);
  48     }
  49
  50     bool ProcessEvent(wxEvent &event)
  51     {
  52         // Hand button down events to wxSpinCtrl. Doesn't work.
  53         if (event.GetEventType() == wxEVT_LEFT_DOWN && m_spin->ProcessEvent( event ))
  54             return true;
  55
  56         return wxTextCtrl::ProcessEvent( event );
  57     }
  58
  59 protected:
  60      void OnKillFocus(wxFocusEvent& WXUNUSED(event))
  61      {
  62          long l;
  63          if ( !GetValue().ToLong(&l) )
  64          {
  65              // not a number at all
  66              return;
  67          }
  68
  69          // is within range
  70          if (l < m_spin->GetMin())
  71              l = m_spin->GetMin();
  72          if (l > m_spin->GetMax())
  73              l = m_spin->GetMax();
  74
  75          // Update text control
  76          wxString str;
  77          str.Printf( wxT("%d"), (int)l );
  78          if (str != GetValue())
  79              SetValue( str );
  80
  81          if (l != m_spin->m_oldValue)
  82          {
  83              // set value in spin button
  84              // does that trigger an event?
  85              m_spin->m_btn->SetValue( l );
  86
  87              // if not
  88              wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, m_spin->GetId());
  89              event.SetEventObject(m_spin);
  90              event.SetInt(l);
  91              m_spin->GetEventHandler()->ProcessEvent(event);
  92
  93              m_spin->m_oldValue = l;
  94          }
  95     }
  96
  97     void OnTextChange(wxCommandEvent& event)
  98     {
  99         int val;
 100         if ( m_spin->GetTextValue(&val) )
 101         {
 102             m_spin->GetSpinButton()->SetValue(val);
 103
 104             // If we're already processing a text update from m_spin,
 105             // don't send it again, since we could end up recursing
 106             // infinitely.
 107             if (event.GetId() == m_spin->GetId())
 108             {
 109                 event.Skip();
 110                 return;
 111             }
 112
 113             // Send event that the text was manually changed
 114             wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_spin->GetId());
 115             event.SetEventObject(m_spin);
 116             event.SetString(m_spin->GetText()->GetValue());
 117             event.SetInt(val);
 118
 119             m_spin->GetEventHandler()->ProcessEvent(event);
 120         }
 121
 122         event.Skip();
 123     }
 124
 125 private:
 126     wxSpinCtrl *m_spin;
 127
 128     DECLARE_EVENT_TABLE()
 129 };
 130
 131 BEGIN_EVENT_TABLE(wxSpinCtrlText, wxTextCtrl)
 132     EVT_TEXT(wxID_ANY, wxSpinCtrlText::OnTextChange)
 133     EVT_KILL_FOCUS( wxSpinCtrlText::OnKillFocus)
 134 END_EVENT_TABLE()
 135
 136 // ----------------------------------------------------------------------------
 137 // wxSpinCtrlButton: spin button used by spin control
 138 // ----------------------------------------------------------------------------
 139
 140 class wxSpinCtrlButton : public wxSpinButton
 141 {
 142 public:
 143     wxSpinCtrlButton(wxSpinCtrl *spin, int style)
 144         : wxSpinButton(spin )
 145     {
 146         m_spin = spin;
 147         SetWindowStyle(style | wxSP_VERTICAL);
 148
 149         // TODO: The spin button gets truncated a little bit due to size
 150         // differences so change it's default size a bit.  SMALL still gets a
 151         // bit truncated, but MINI seems to be too small...  Readdress this
 152         // when the textctrl issues are all sorted out.
 153         //SetWindowVariant(wxWINDOW_VARIANT_SMALL);
 154
 155         // remove the default minsize, the spinctrl will have one instead
 156         SetMinSize(wxDefaultSize);
 157     }
 158
 159 protected:
 160     void OnSpinButton(wxSpinEvent& eventSpin)
 161     {
 162         int pos = eventSpin.GetPosition();
 163         m_spin->SetTextValue(pos);
 164
 165         wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, m_spin->GetId());
 166         event.SetEventObject(m_spin);
 167         event.SetInt(pos);
 168
 169         m_spin->GetEventHandler()->ProcessEvent(event);
 170
 171         m_spin->m_oldValue = pos;
 172     }
 173
 174 private:
 175     wxSpinCtrl *m_spin;
 176
 177     DECLARE_EVENT_TABLE()
 178 };
 179
 180 BEGIN_EVENT_TABLE(wxSpinCtrlButton, wxSpinButton)
 181     EVT_SPIN(wxID_ANY, wxSpinCtrlButton::OnSpinButton)
 182 END_EVENT_TABLE()
 183
 184 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
 185
 186 BEGIN_EVENT_TABLE(wxSpinCtrl, wxControl)
 187     WX_EVENT_TABLE_CONTROL_CONTAINER(wxSpinCtrl)
 188 END_EVENT_TABLE()
 189
 190 WX_DELEGATE_TO_CONTROL_CONTAINER(wxSpinCtrl, wxControl)
 191
 192
 193 // ============================================================================
 194 // implementation
 195 // ============================================================================
 196
 197 // ----------------------------------------------------------------------------
 198 // wxSpinCtrl creation
 199 // ----------------------------------------------------------------------------
 200
 201 void wxSpinCtrl::Init()
 202 {
 203     m_text = NULL;
 204     m_btn = NULL;
 205     WX_INIT_CONTROL_CONTAINER();
 206 }
 207
 208 bool wxSpinCtrl::Create(wxWindow *parent,
 209                         wxWindowID id,
 210                         const wxString& value,
 211                         const wxPoint& pos,
 212                         const wxSize& size,
 213                         long style,
 214                         int min,
 215                         int max,
 216                         int initial,
 217                         const wxString& name)
 218 {
 219     m_macIsUserPane = true;
 220     if ( !wxControl::Create(parent, id, pos, size, style,
 221                             wxDefaultValidator, name) )
 222     {
 223         return false;
 224     }
 225
 226     // the string value overrides the numeric one (for backwards compatibility
 227     // reasons and also because it is simpler to satisfy the string value which
 228     // comes much sooner in the list of arguments and leave the initial
 229     // parameter unspecified)
 230     if ( !value.empty() )
 231     {
 232         long l;
 233         if ( value.ToLong(&l) )
 234             initial = l;
 235     }
 236
 237     wxSize csize = size ;
 238     m_text = new wxSpinCtrlText(this, value);
 239     m_btn = new wxSpinCtrlButton(this, style);
 240
 241     m_btn->SetRange(min, max);
 242     m_btn->SetValue(initial);
 243     // make it different
 244     m_oldValue = GetMin()-1;
 245
 246     if ( size.x == wxDefaultCoord ){
 247         csize.x = m_text->GetSize().x + MARGIN + m_btn->GetSize().x ;
 248     }
 249
 250     if ( size.y == wxDefaultCoord ) {
 251         csize.y = m_text->GetSize().y + 2 * TEXTBORDER ; //allow for text border highlights
 252         if ( m_btn->GetSize().y > csize.y )
 253             csize.y = m_btn->GetSize().y ;
 254     }
 255
 256     //SetSize(csize);
 257
 258     //MacPostControlCreate(pos, csize);
 259     SetInitialSize(csize);
 260
 261     return true;
 262 }
 263
 264 wxSpinCtrl::~wxSpinCtrl()
 265 {
 266     // delete the controls now, don't leave them alive even though they would
 267     // still be eventually deleted by our parent - but it will be too late, the
 268     // user code expects them to be gone now
 269     delete m_text;
 270     m_text = NULL ;
 271     delete m_btn;
 272     m_btn = NULL ;
 273 }
 274
 275 // ----------------------------------------------------------------------------
 276 // geometry
 277 // ----------------------------------------------------------------------------
 278
 279 wxSize wxSpinCtrl::DoGetBestSize() const
 280 {
 281     if (!m_btn || !m_text)
 282         return GetSize();
 283
 284     wxSize sizeBtn = m_btn->GetBestSize(),
 285            sizeText = m_text->GetBestSize();
 286
 287     sizeText.y += 2 * TEXTBORDER ;
 288     sizeText.x += 2 * TEXTBORDER ;
 289
 290     int height;
 291     if (sizeText.y > sizeBtn.y)
 292         height = sizeText.y;
 293     else
 294         height = sizeBtn.y;
 295
 296     return wxSize(sizeBtn.x + sizeText.x + MARGIN, height );
 297 }
 298
 299 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 300 {
 301     // position the subcontrols inside the client area
 302     wxSize sizeBtn = m_btn->GetSize();
 303     wxSize sizeText = m_text->GetSize();
 304
 305     wxControl::DoMoveWindow(x, y, width, height);
 306
 307     wxCoord wText = width - sizeBtn.x - MARGIN - 2 * TEXTBORDER;
 308
 309     m_text->SetSize(TEXTBORDER, (height - sizeText.y) / 2, wText, -1);
 310     m_btn->SetSize(0 + wText + MARGIN + 2 * TEXTBORDER , (height - sizeBtn.y) / 2 , -1, -1 );
 311 }
 312
 313 // ----------------------------------------------------------------------------
 314 // operations forwarded to the subcontrols
 315 // ----------------------------------------------------------------------------
 316
 317 bool wxSpinCtrl::Enable(bool enable)
 318 {
 319     if ( !wxControl::Enable(enable) )
 320         return false;
 321     return true;
 322 }
 323
 324 bool wxSpinCtrl::Show(bool show)
 325 {
 326     if ( !wxControl::Show(show) )
 327         return false;
 328     return true;
 329 }
 330
 331 // ----------------------------------------------------------------------------
 332 // value and range access
 333 // ----------------------------------------------------------------------------
 334
 335 bool wxSpinCtrl::GetTextValue(int *val) const
 336 {
 337     long l;
 338     if ( !m_text->GetValue().ToLong(&l) )
 339     {
 340         // not a number at all
 341         return false;
 342     }
 343
 344     if ( l < GetMin() || l > GetMax() )
 345     {
 346         // out of range
 347         return false;
 348     }
 349
 350     *val = l;
 351
 352     return true;
 353 }
 354
 355 int wxSpinCtrl::GetValue() const
 356 {
 357     return m_btn ? m_btn->GetValue() : 0;
 358 }
 359
 360 int wxSpinCtrl::GetMin() const
 361 {
 362     return m_btn ? m_btn->GetMin() : 0;
 363 }
 364
 365 int wxSpinCtrl::GetMax() const
 366 {
 367     return m_btn ? m_btn->GetMax() : 0;
 368 }
 369
 370 // ----------------------------------------------------------------------------
 371 // changing value and range
 372 // ----------------------------------------------------------------------------
 373
 374 void wxSpinCtrl::SetTextValue(int val)
 375 {
 376     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetTextValue") );
 377
 378     m_text->SetValue(wxString::Format(_T("%d"), val));
 379
 380     // select all text
 381     m_text->SetSelection(0, -1);
 382
 383     // and give focus to the control!
 384     // m_text->SetFocus();    Why???? TODO.
 385 }
 386
 387 void wxSpinCtrl::SetValue(int val)
 388 {
 389     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetValue") );
 390
 391     SetTextValue(val);
 392
 393     m_btn->SetValue(val);
 394     m_oldValue = val;
 395 }
 396
 397 void wxSpinCtrl::SetValue(const wxString& text)
 398 {
 399     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetValue") );
 400
 401     long val;
 402     if ( text.ToLong(&val) && ((val > INT_MIN) && (val < INT_MAX)) )
 403     {
 404         SetValue((int)val);
 405     }
 406     else // not a number at all or out of range
 407     {
 408         m_text->SetValue(text);
 409         m_text->SetSelection(0, -1);
 410     }
 411 }
 412
 413 void wxSpinCtrl::SetRange(int min, int max)
 414 {
 415     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetRange") );
 416
 417     m_btn->SetRange(min, max);
 418 }
 419
 420 void wxSpinCtrl::SetSelection(long from, long to)
 421 {
 422     // if from and to are both -1, it means (in wxWidgets) that all text should
 423     // be selected
 424     if ( (from == -1) && (to == -1) )
 425     {
 426         from = 0;
 427     }
 428     m_text->SetSelection(from, to);
 429 }
 430
 431 #endif // wxUSE_SPINCTRL