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 private:
  74     wxSpinCtrl *m_spin;
  75
  76     DECLARE_EVENT_TABLE()
  77 };
  78
  79 BEGIN_EVENT_TABLE(wxSpinCtrlText, wxTextCtrl)
  80     EVT_TEXT(-1, wxSpinCtrlText::OnTextChange)
  81 END_EVENT_TABLE()
  82
  83 // ----------------------------------------------------------------------------
  84 // wxSpinCtrlButton: spin button used by spin control
  85 // ----------------------------------------------------------------------------
  86
  87 class wxSpinCtrlButton : public wxSpinButton
  88 {
  89 public:
  90     wxSpinCtrlButton(wxSpinCtrl *spin, int style)
  91         : wxSpinButton(spin->GetParent())
  92     {
  93         m_spin = spin;
  94
  95         SetWindowStyle(style);
  96     }
  97
  98 protected:
  99     void OnSpinButton(wxSpinEvent& event)
 100     {
 101         m_spin->SetTextValue(event.GetPosition());
 102
 103         event.Skip();
 104     }
 105
 106 private:
 107     wxSpinCtrl *m_spin;
 108
 109     DECLARE_EVENT_TABLE()
 110 };
 111
 112 BEGIN_EVENT_TABLE(wxSpinCtrlButton, wxSpinButton)
 113     EVT_SPIN(-1, wxSpinCtrlButton::OnSpinButton)
 114 END_EVENT_TABLE()
 115
 116 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
 117
 118 // ============================================================================
 119 // implementation
 120 // ============================================================================
 121
 122 // ----------------------------------------------------------------------------
 123 // wxSpinCtrl creation
 124 // ----------------------------------------------------------------------------
 125
 126 void wxSpinCtrl::Init()
 127 {
 128     m_text = NULL;
 129     m_btn = NULL;
 130 }
 131
 132 bool wxSpinCtrl::Create(wxWindow *parent,
 133                         wxWindowID id,
 134                         const wxString& value,
 135                         const wxPoint& pos,
 136                         const wxSize& size,
 137                         long style,
 138                         int min,
 139                         int max,
 140                         int initial,
 141                         const wxString& name)
 142 {
 143     if ( !wxControl::Create(parent, id, pos, size, style,
 144                             wxDefaultValidator, name) )
 145     {
 146         return FALSE;
 147     }
 148
 149     SetBackgroundColour(*wxRED);
 150     m_text = new wxSpinCtrlText(this, value);
 151     m_btn = new wxSpinCtrlButton(this, style);
 152
 153     m_btn->SetRange(min, max);
 154     m_btn->SetValue(initial);
 155
 156     DoSetSize(pos.x, pos.y, size.x, size.y);
 157 #ifdef __WXMAC__
 158     DoMoveWindow( pos.x, pos.y, size.x, size.y ) ;
 159 #endif
 160     // have to disable this window to avoid interfering it with message
 161     // processing to the text and the button... but pretend it is enabled to
 162     // make IsEnabled() return TRUE
 163     wxControl::Enable(FALSE); // don't use non virtual Disable() here!
 164     m_isEnabled = TRUE;
 165
 166     // we don't even need to show this window itself - and not doing it avoids
 167     // that it overwrites the text control
 168     wxControl::Show(FALSE);
 169     m_isShown = TRUE;
 170
 171     return TRUE;
 172 }
 173
 174 wxSpinCtrl::~wxSpinCtrl()
 175 {
 176     // delete the controls now, don't leave them alive even though they woudl
 177     // still be eventually deleted by our parent - but it will be too late, the
 178     // user code expects them to be gone now
 179     delete m_text;
 180     delete m_btn;
 181 }
 182
 183 // ----------------------------------------------------------------------------
 184 // geometry
 185 // ----------------------------------------------------------------------------
 186
 187 wxSize wxSpinCtrl::DoGetBestClientSize() const
 188 {
 189     wxSize sizeBtn = m_btn->GetBestSize(),
 190            sizeText = m_text->GetBestSize();
 191
 192     return wxSize(sizeBtn.x + sizeText.x + MARGIN, sizeText.y);
 193 }
 194
 195 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 196 {
 197     wxControl::DoMoveWindow(x, y, width, height);
 198
 199     // position the subcontrols inside the client area
 200     wxSize sizeBtn = m_btn->GetSize();
 201
 202     wxCoord wText = width - sizeBtn.x;
 203     m_text->SetSize(x, y, wText, height);
 204     m_btn->SetSize(x + wText + MARGIN, y, -1, height);
 205 }
 206
 207 // ----------------------------------------------------------------------------
 208 // operations forwarded to the subcontrols
 209 // ----------------------------------------------------------------------------
 210
 211 bool wxSpinCtrl::Enable(bool enable)
 212 {
 213     if ( !wxControl::Enable(enable) )
 214         return FALSE;
 215
 216     m_btn->Enable(enable);
 217     m_text->Enable(enable);
 218
 219     return TRUE;
 220 }
 221
 222 bool wxSpinCtrl::Show(bool show)
 223 {
 224     if ( !wxControl::Show(show) )
 225         return FALSE;
 226
 227     // under GTK Show() is called the first time before we are fully
 228     // constructed
 229     if ( m_btn )
 230     {
 231         m_btn->Show(show);
 232         m_text->Show(show);
 233     }
 234
 235     return TRUE;
 236 }
 237
 238 // ----------------------------------------------------------------------------
 239 // value and range access
 240 // ----------------------------------------------------------------------------
 241
 242 bool wxSpinCtrl::GetTextValue(int *val) const
 243 {
 244     long l;
 245     if ( !m_text->GetValue().ToLong(&l) )
 246     {
 247         // not a number at all
 248         return FALSE;
 249     }
 250
 251     if ( l < GetMin() || l > GetMax() )
 252     {
 253         // out of range
 254         return FALSE;
 255     }
 256
 257     *val = l;
 258
 259     return TRUE;
 260 }
 261
 262 int wxSpinCtrl::GetValue() const
 263 {
 264     return m_btn ? m_btn->GetValue() : 0;
 265 }
 266
 267 int wxSpinCtrl::GetMin() const
 268 {
 269     return m_btn ? m_btn->GetMin() : 0;
 270 }
 271
 272 int wxSpinCtrl::GetMax() const
 273 {
 274     return m_btn ? m_btn->GetMax() : 0;
 275 }
 276
 277 // ----------------------------------------------------------------------------
 278 // changing value and range
 279 // ----------------------------------------------------------------------------
 280
 281 void wxSpinCtrl::SetTextValue(int val)
 282 {
 283     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetTextValue") );
 284
 285     m_text->SetValue(wxString::Format(_T("%d"), val));
 286
 287     // select all text
 288     m_text->SetSelection(0, -1);
 289
 290     // and give focus to the control!
 291     m_text->SetFocus();
 292 }
 293
 294 void wxSpinCtrl::SetValue(int val)
 295 {
 296     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetValue") );
 297
 298     SetTextValue(val);
 299
 300     m_btn->SetValue(val);
 301 }
 302
 303 void wxSpinCtrl::SetValue(const wxString& text)
 304 {
 305     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetValue") );
 306
 307     long val;
 308     if ( text.ToLong(&val) && ((val > INT_MIN) && (val < INT_MAX)) )
 309     {
 310         SetValue((int)val);
 311     }
 312     else // not a number at all or out of range
 313     {
 314         m_text->SetValue(text);
 315         m_text->SetSelection(0, -1);
 316     }
 317 }
 318
 319 void wxSpinCtrl::SetRange(int min, int max)
 320 {
 321     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetRange") );
 322
 323     m_btn->SetRange(min, max);
 324 }
 325
 326 #endif // !wxPort-with-native-spinctrl