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 #include "wx/wxprec.h"
  12
  13 #if wxUSE_SPINCTRL
  14
  15 #include "wx/spinbutt.h"
  16 #include "wx/spinctrl.h"
  17 #include "wx/textctrl.h"
  18
  19
  20 // ----------------------------------------------------------------------------
  21 // constants
  22 // ----------------------------------------------------------------------------
  23
  24 // the focus rect around a text may have 4 pixels in each direction
  25 // we handle these problems right now in an extended vis region of a window
  26 static const wxCoord TEXTBORDER = 4 ;
  27 // the margin between the text control and the spin
  28 static const wxCoord MARGIN = 8 - TEXTBORDER;
  29
  30 // ----------------------------------------------------------------------------
  31 // wxSpinCtrlText: text control used by spin control
  32 // ----------------------------------------------------------------------------
  33
  34 class wxSpinCtrlText : public wxTextCtrl
  35 {
  36 public:
  37     wxSpinCtrlText(wxSpinCtrl *spin, const wxString& value)
  38         : wxTextCtrl(spin , -1, value, wxDefaultPosition, wxSize(40, -1))
  39     {
  40         m_spin = spin;
  41
  42         // remove the default minsize, the spinctrl will have one instead
  43         SetSizeHints(-1,-1);
  44     }
  45
  46     bool ProcessEvent(wxEvent &event)
  47     {
  48         // Hand button down events to wxSpinCtrl. Doesn't work.
  49         if (event.GetEventType() == wxEVT_LEFT_DOWN && m_spin->ProcessEvent( event ))
  50             return TRUE;
  51
  52         return wxTextCtrl::ProcessEvent( event );
  53     }
  54
  55 protected:
  56     void OnTextChange(wxCommandEvent& event)
  57     {
  58         int val;
  59         if ( m_spin->GetTextValue(&val) )
  60         {
  61             m_spin->GetSpinButton()->SetValue(val);
  62
  63             // If we're already processing a text update from m_spin,
  64             // don't send it again, since we could end up recursing
  65             // infinitely.
  66             if (event.GetId() == m_spin->GetId())
  67             {
  68                 event.Skip();
  69                 return;
  70             }
  71
  72             // Send event that the text was manually changed
  73             wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_spin->GetId());
  74             event.SetEventObject(m_spin);
  75             event.SetString(m_spin->GetText()->GetValue());
  76             event.SetInt(val);
  77
  78             m_spin->GetEventHandler()->ProcessEvent(event);
  79         }
  80
  81         event.Skip();
  82     }
  83
  84 private:
  85     wxSpinCtrl *m_spin;
  86
  87     DECLARE_EVENT_TABLE()
  88 };
  89
  90 BEGIN_EVENT_TABLE(wxSpinCtrlText, wxTextCtrl)
  91     EVT_TEXT(-1, wxSpinCtrlText::OnTextChange)
  92 END_EVENT_TABLE()
  93
  94 // ----------------------------------------------------------------------------
  95 // wxSpinCtrlButton: spin button used by spin control
  96 // ----------------------------------------------------------------------------
  97
  98 class wxSpinCtrlButton : public wxSpinButton
  99 {
 100 public:
 101     wxSpinCtrlButton(wxSpinCtrl *spin, int style)
 102         : wxSpinButton(spin )
 103     {
 104         m_spin = spin;
 105         SetWindowStyle(style | wxSP_VERTICAL);
 106
 107         // TODO: The spin button gets truncated a little bit due to size
 108         // differences so change it's default size a bit.  SMALL still gets a
 109         // bit truncated, but MINI seems to be too small...  Readdress this
 110         // when the textctrl issues are all sorted out.
 111         //SetWindowVariant(wxWINDOW_VARIANT_SMALL);
 112
 113         // remove the default minsize, the spinctrl will have one instead
 114         SetSizeHints(-1,-1);
 115     }
 116
 117 protected:
 118     void OnSpinButton(wxSpinEvent& eventSpin)
 119     {
 120       m_spin->SetTextValue(eventSpin.GetPosition());
 121
 122       wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, m_spin->GetId());
 123       event.SetEventObject(m_spin);
 124       event.SetInt(eventSpin.GetPosition());
 125
 126       m_spin->GetEventHandler()->ProcessEvent(event);
 127     }
 128
 129 private:
 130     wxSpinCtrl *m_spin;
 131
 132     DECLARE_EVENT_TABLE()
 133 };
 134
 135 BEGIN_EVENT_TABLE(wxSpinCtrlButton, wxSpinButton)
 136     EVT_SPIN(-1, wxSpinCtrlButton::OnSpinButton)
 137 END_EVENT_TABLE()
 138
 139 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
 140
 141 // ============================================================================
 142 // implementation
 143 // ============================================================================
 144
 145 // ----------------------------------------------------------------------------
 146 // wxSpinCtrl creation
 147 // ----------------------------------------------------------------------------
 148
 149 void wxSpinCtrl::Init()
 150 {
 151     m_text = NULL;
 152     m_btn = NULL;
 153 }
 154
 155 bool wxSpinCtrl::Create(wxWindow *parent,
 156                         wxWindowID id,
 157                         const wxString& value,
 158                         const wxPoint& pos,
 159                         const wxSize& size,
 160                         long style,
 161                         int min,
 162                         int max,
 163                         int initial,
 164                         const wxString& name)
 165 {
 166     m_macIsUserPane = true;
 167     if ( !wxControl::Create(parent, id, pos, size, style,
 168                             wxDefaultValidator, name) )
 169     {
 170         return FALSE;
 171     }
 172
 173     // the string value overrides the numeric one (for backwards compatibility
 174     // reasons and also because it is simpler to satisfy the string value which
 175     // comes much sooner in the list of arguments and leave the initial
 176     // parameter unspecified)
 177     if ( !value.empty() )
 178     {
 179         long l;
 180         if ( value.ToLong(&l) )
 181             initial = l;
 182     }
 183
 184     wxSize csize = size ;
 185     m_text = new wxSpinCtrlText(this, value);
 186     m_btn = new wxSpinCtrlButton(this, style);
 187
 188     m_btn->SetRange(min, max);
 189     m_btn->SetValue(initial);
 190
 191     if ( size.x == -1 ){
 192         csize.x = m_text->GetSize().x + MARGIN + m_btn->GetSize().x ;
 193     }
 194
 195     if ( size.y == -1 ) {
 196             csize.y = m_text->GetSize().y + 2 * TEXTBORDER ; //allow for text border highlights
 197             if ( m_btn->GetSize().y > csize.y )
 198                 csize.y = m_btn->GetSize().y ;
 199     }
 200
 201     //SetSize(csize);
 202
 203     //MacPostControlCreate(pos, csize);
 204     SetInitialBestSize(csize);
 205
 206     return TRUE;
 207 }
 208
 209 wxSpinCtrl::~wxSpinCtrl()
 210 {
 211     // delete the controls now, don't leave them alive even though they would
 212     // still be eventually deleted by our parent - but it will be too late, the
 213     // user code expects them to be gone now
 214     delete m_text;
 215     m_text = NULL ;
 216     delete m_btn;
 217     m_btn = NULL ;
 218 }
 219
 220 // ----------------------------------------------------------------------------
 221 // geometry
 222 // ----------------------------------------------------------------------------
 223
 224 wxSize wxSpinCtrl::DoGetBestSize() const
 225 {
 226     if (!m_btn || !m_text)
 227         return GetSize();
 228
 229     wxSize sizeBtn = m_btn->GetBestSize(),
 230            sizeText = m_text->GetBestSize();
 231
 232     sizeText.y += 2 * TEXTBORDER ;
 233     sizeText.x += 2 * TEXTBORDER ;
 234
 235     int height;
 236     if (sizeText.y > sizeBtn.y)
 237         height = sizeText.y;
 238     else
 239         height = sizeBtn.y;
 240
 241     return wxSize(sizeBtn.x + sizeText.x + MARGIN, height );
 242 }
 243
 244 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 245 {
 246     // position the subcontrols inside the client area
 247     wxSize sizeBtn = m_btn->GetSize();
 248     wxSize sizeText = m_text->GetSize();
 249
 250     wxControl::DoMoveWindow(x, y, width, height);
 251
 252     wxCoord wText = width - sizeBtn.x - MARGIN - 2 * TEXTBORDER;
 253
 254     m_text->SetSize(TEXTBORDER, (height - sizeText.y) / 2, wText, -1);
 255     m_btn->SetSize(0 + wText + MARGIN + 2 * TEXTBORDER , (height - sizeBtn.y) / 2 , -1, -1 );
 256 }
 257
 258 // ----------------------------------------------------------------------------
 259 // operations forwarded to the subcontrols
 260 // ----------------------------------------------------------------------------
 261
 262 bool wxSpinCtrl::Enable(bool enable)
 263 {
 264     if ( !wxControl::Enable(enable) )
 265         return FALSE;
 266     return TRUE;
 267 }
 268
 269 bool wxSpinCtrl::Show(bool show)
 270 {
 271     if ( !wxControl::Show(show) )
 272         return FALSE;
 273     return TRUE;
 274 }
 275
 276 void wxSpinCtrl::SetFocus()
 277 {
 278     if ( m_text != NULL) {
 279         m_text->SetFocus();
 280     }
 281 }
 282
 283 // ----------------------------------------------------------------------------
 284 // value and range access
 285 // ----------------------------------------------------------------------------
 286
 287 bool wxSpinCtrl::GetTextValue(int *val) const
 288 {
 289     long l;
 290     if ( !m_text->GetValue().ToLong(&l) )
 291     {
 292         // not a number at all
 293         return FALSE;
 294     }
 295
 296     if ( l < GetMin() || l > GetMax() )
 297     {
 298         // out of range
 299         return FALSE;
 300     }
 301
 302     *val = l;
 303
 304     return TRUE;
 305 }
 306
 307 int wxSpinCtrl::GetValue() const
 308 {
 309     return m_btn ? m_btn->GetValue() : 0;
 310 }
 311
 312 int wxSpinCtrl::GetMin() const
 313 {
 314     return m_btn ? m_btn->GetMin() : 0;
 315 }
 316
 317 int wxSpinCtrl::GetMax() const
 318 {
 319     return m_btn ? m_btn->GetMax() : 0;
 320 }
 321
 322 // ----------------------------------------------------------------------------
 323 // changing value and range
 324 // ----------------------------------------------------------------------------
 325
 326 void wxSpinCtrl::SetTextValue(int val)
 327 {
 328     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetTextValue") );
 329
 330     m_text->SetValue(wxString::Format(_T("%d"), val));
 331
 332     // select all text
 333     m_text->SetSelection(0, -1);
 334
 335     // and give focus to the control!
 336     // m_text->SetFocus();    Why???? TODO.
 337 }
 338
 339 void wxSpinCtrl::SetValue(int val)
 340 {
 341     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetValue") );
 342
 343     SetTextValue(val);
 344
 345     m_btn->SetValue(val);
 346 }
 347
 348 void wxSpinCtrl::SetValue(const wxString& text)
 349 {
 350     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetValue") );
 351
 352     long val;
 353     if ( text.ToLong(&val) && ((val > INT_MIN) && (val < INT_MAX)) )
 354     {
 355         SetValue((int)val);
 356     }
 357     else // not a number at all or out of range
 358     {
 359         m_text->SetValue(text);
 360         m_text->SetSelection(0, -1);
 361     }
 362 }
 363
 364 void wxSpinCtrl::SetRange(int min, int max)
 365 {
 366     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetRange") );
 367
 368     m_btn->SetRange(min, max);
 369 }
 370
 371 void wxSpinCtrl::SetSelection(long from, long to)
 372 {
 373     // if from and to are both -1, it means (in wxWidgets) that all text should
 374     // be selected
 375     if ( (from == -1) && (to == -1) )
 376     {
 377         from = 0;
 378     }
 379     m_text->SetSelection(from, to);
 380 }
 381
 382 #endif // wxUSE_SPINCTRL