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