src/generic/spinctlg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/spinctlg.cpp
   3 // Purpose:     implements wxSpinCtrl as a composite control
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     29.01.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // License:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "spinctlg.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #if !(defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXPM__)) || defined(__WXMAC__) || \
  32     defined(__WXUNIVERSAL__)
  33
  34 #ifndef WX_PRECOMP
  35     #include "wx/textctrl.h"
  36 #endif //WX_PRECOMP
  37
  38 #include "wx/spinbutt.h"
  39 #include "wx/spinctrl.h"
  40
  41 // ----------------------------------------------------------------------------
  42 // constants
  43 // ----------------------------------------------------------------------------
  44
  45 // the margin between the text control and the spin
  46 static const wxCoord MARGIN = 2;
  47
  48 // ----------------------------------------------------------------------------
  49 // wxSpinCtrlText: text control used by spin control
  50 // ----------------------------------------------------------------------------
  51
  52 class wxSpinCtrlText : public wxTextCtrl
  53 {
  54 public:
  55     wxSpinCtrlText(wxSpinCtrl *spin, const wxString& value)
  56         : wxTextCtrl(spin->GetParent(), -1, value)
  57     {
  58         m_spin = spin;
  59     }
  60
  61 protected:
  62     void OnTextChange(wxCommandEvent& event)
  63     {
  64         int val;
  65         if ( m_spin->GetTextValue(&val) )
  66         {
  67             m_spin->GetSpinButton()->SetValue(val);
  68         }
  69
  70         event.Skip();
  71     }
  72
  73     bool ProcessEvent(wxEvent &event)
  74     {
  75         // Hand button down events to wxSpinCtrl. Doesn't work.
  76         if (event.GetEventType() == wxEVT_LEFT_DOWN && m_spin->ProcessEvent( event ))
  77             return TRUE;
  78
  79         return wxTextCtrl::ProcessEvent( event );
  80     }
  81
  82 private:
  83     wxSpinCtrl *m_spin;
  84
  85     DECLARE_EVENT_TABLE()
  86 };
  87
  88 BEGIN_EVENT_TABLE(wxSpinCtrlText, wxTextCtrl)
  89     EVT_TEXT(-1, wxSpinCtrlText::OnTextChange)
  90 END_EVENT_TABLE()
  91
  92 // ----------------------------------------------------------------------------
  93 // wxSpinCtrlButton: spin button used by spin control
  94 // ----------------------------------------------------------------------------
  95
  96 class wxSpinCtrlButton : public wxSpinButton
  97 {
  98 public:
  99     wxSpinCtrlButton(wxSpinCtrl *spin, int style)
 100         : wxSpinButton(spin->GetParent())
 101     {
 102         m_spin = spin;
 103
 104         SetWindowStyle(style);
 105     }
 106
 107 protected:
 108     void OnSpinButton(wxSpinEvent& event)
 109     {
 110         m_spin->SetTextValue(event.GetPosition());
 111
 112         event.Skip();
 113     }
 114
 115 private:
 116     wxSpinCtrl *m_spin;
 117
 118     DECLARE_EVENT_TABLE()
 119 };
 120
 121 BEGIN_EVENT_TABLE(wxSpinCtrlButton, wxSpinButton)
 122     EVT_SPIN(-1, wxSpinCtrlButton::OnSpinButton)
 123 END_EVENT_TABLE()
 124
 125 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
 126
 127 // ============================================================================
 128 // implementation
 129 // ============================================================================
 130
 131 // ----------------------------------------------------------------------------
 132 // wxSpinCtrl creation
 133 // ----------------------------------------------------------------------------
 134
 135 void wxSpinCtrl::Init()
 136 {
 137     m_text = NULL;
 138     m_btn = NULL;
 139 }
 140
 141 bool wxSpinCtrl::Create(wxWindow *parent,
 142                         wxWindowID id,
 143                         const wxString& value,
 144                         const wxPoint& pos,
 145                         const wxSize& size,
 146                         long style,
 147                         int min,
 148                         int max,
 149                         int initial,
 150                         const wxString& name)
 151 {
 152     if ( !wxControl::Create(parent, id, pos, size, style,
 153                             wxDefaultValidator, name) )
 154     {
 155         return FALSE;
 156     }
 157
 158     SetBackgroundColour(*wxRED);
 159     m_text = new wxSpinCtrlText(this, value);
 160     m_btn = new wxSpinCtrlButton(this, style);
 161
 162     m_btn->SetRange(min, max);
 163     m_btn->SetValue(initial);
 164 #ifdef __WXMAC__
 165     wxSize csize = size ;
 166     if ( size.y == -1 ) {
 167       csize.y = m_text->GetSize().y ;
 168     }
 169     DoSetSize(pos.x, pos.y, csize.x, csize.y);
 170 #else
 171     DoSetSize(pos.x, pos.y, size.x, size.y);
 172 #endif
 173     // have to disable this window to avoid interfering it with message
 174     // processing to the text and the button... but pretend it is enabled to
 175     // make IsEnabled() return TRUE
 176     wxControl::Enable(FALSE); // don't use non virtual Disable() here!
 177     m_isEnabled = TRUE;
 178
 179     // we don't even need to show this window itself - and not doing it avoids
 180     // that it overwrites the text control
 181     wxControl::Show(FALSE);
 182 #ifndef __WXMAC__
 183     m_isShown = TRUE;
 184 #endif
 185     return TRUE;
 186 }
 187
 188 wxSpinCtrl::~wxSpinCtrl()
 189 {
 190     // delete the controls now, don't leave them alive even though they woudl
 191     // still be eventually deleted by our parent - but it will be too late, the
 192     // user code expects them to be gone now
 193     delete m_text;
 194     delete m_btn;
 195 }
 196
 197 // ----------------------------------------------------------------------------
 198 // geometry
 199 // ----------------------------------------------------------------------------
 200
 201 wxSize wxSpinCtrl::DoGetBestClientSize() const
 202 {
 203     wxSize sizeBtn = m_btn->GetBestSize(),
 204            sizeText = m_text->GetBestSize();
 205
 206     return wxSize(sizeBtn.x + sizeText.x + MARGIN, sizeText.y);
 207 }
 208
 209 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 210 {
 211     wxControl::DoMoveWindow(x, y, width, height);
 212
 213     // position the subcontrols inside the client area
 214     wxSize sizeBtn = m_btn->GetSize();
 215
 216     wxCoord wText = width - sizeBtn.x;
 217     m_text->SetSize(x, y, wText, height);
 218     m_btn->SetSize(x + wText + MARGIN, y, -1, height);
 219 }
 220
 221 // ----------------------------------------------------------------------------
 222 // operations forwarded to the subcontrols
 223 // ----------------------------------------------------------------------------
 224
 225 bool wxSpinCtrl::Enable(bool enable)
 226 {
 227     if ( !wxControl::Enable(enable) )
 228         return FALSE;
 229
 230     m_btn->Enable(enable);
 231     m_text->Enable(enable);
 232
 233     return TRUE;
 234 }
 235
 236 bool wxSpinCtrl::Show(bool show)
 237 {
 238     if ( !wxControl::Show(show) )
 239         return FALSE;
 240
 241     // under GTK Show() is called the first time before we are fully
 242     // constructed
 243     if ( m_btn )
 244     {
 245         m_btn->Show(show);
 246         m_text->Show(show);
 247     }
 248
 249     return TRUE;
 250 }
 251
 252 // ----------------------------------------------------------------------------
 253 // value and range access
 254 // ----------------------------------------------------------------------------
 255
 256 bool wxSpinCtrl::GetTextValue(int *val) const
 257 {
 258     long l;
 259     if ( !m_text->GetValue().ToLong(&l) )
 260     {
 261         // not a number at all
 262         return FALSE;
 263     }
 264
 265     if ( l < GetMin() || l > GetMax() )
 266     {
 267         // out of range
 268         return FALSE;
 269     }
 270
 271     *val = l;
 272
 273     return TRUE;
 274 }
 275
 276 int wxSpinCtrl::GetValue() const
 277 {
 278     return m_btn ? m_btn->GetValue() : 0;
 279 }
 280
 281 int wxSpinCtrl::GetMin() const
 282 {
 283     return m_btn ? m_btn->GetMin() : 0;
 284 }
 285
 286 int wxSpinCtrl::GetMax() const
 287 {
 288     return m_btn ? m_btn->GetMax() : 0;
 289 }
 290
 291 // ----------------------------------------------------------------------------
 292 // changing value and range
 293 // ----------------------------------------------------------------------------
 294
 295 void wxSpinCtrl::SetTextValue(int val)
 296 {
 297     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetTextValue") );
 298
 299     m_text->SetValue(wxString::Format(_T("%d"), val));
 300
 301     // select all text
 302     m_text->SetSelection(0, -1);
 303
 304     // and give focus to the control!
 305     m_text->SetFocus();
 306 }
 307
 308 void wxSpinCtrl::SetValue(int val)
 309 {
 310     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetValue") );
 311
 312     SetTextValue(val);
 313
 314     m_btn->SetValue(val);
 315 }
 316
 317 void wxSpinCtrl::SetValue(const wxString& text)
 318 {
 319     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetValue") );
 320
 321     long val;
 322     if ( text.ToLong(&val) && ((val > INT_MIN) && (val < INT_MAX)) )
 323     {
 324         SetValue((int)val);
 325     }
 326     else // not a number at all or out of range
 327     {
 328         m_text->SetValue(text);
 329         m_text->SetSelection(0, -1);
 330     }
 331 }
 332
 333 void wxSpinCtrl::SetRange(int min, int max)
 334 {
 335     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetRange") );
 336
 337     m_btn->SetRange(min, max);
 338 }
 339
 340 #endif // !wxPort-with-native-spinctrl