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 #if wxUSE_SPINCTRL
  39
  40 #include "wx/spinbutt.h"
  41 #include "wx/spinctrl.h"
  42
  43 // ----------------------------------------------------------------------------
  44 // constants
  45 // ----------------------------------------------------------------------------
  46
  47 // the margin between the text control and the spin
  48 static const wxCoord MARGIN = 2;
  49
  50 // ----------------------------------------------------------------------------
  51 // wxSpinCtrlText: text control used by spin control
  52 // ----------------------------------------------------------------------------
  53
  54 class wxSpinCtrlText : public wxTextCtrl
  55 {
  56 public:
  57     wxSpinCtrlText(wxSpinCtrl *spin, const wxString& value)
  58         : wxTextCtrl(spin->GetParent(), -1, value)
  59     {
  60         m_spin = spin;
  61     }
  62
  63 protected:
  64     void OnTextChange(wxCommandEvent& event)
  65     {
  66         int val;
  67         if ( m_spin->GetTextValue(&val) )
  68         {
  69             m_spin->GetSpinButton()->SetValue(val);
  70         }
  71
  72         event.Skip();
  73     }
  74
  75     bool ProcessEvent(wxEvent &event)
  76     {
  77         // Hand button down events to wxSpinCtrl. Doesn't work.
  78         if (event.GetEventType() == wxEVT_LEFT_DOWN && m_spin->ProcessEvent( event ))
  79             return TRUE;
  80
  81         return wxTextCtrl::ProcessEvent( event );
  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->GetParent())
 103     {
 104         m_spin = spin;
 105
 106         SetWindowStyle(style | wxSP_VERTICAL);
 107     }
 108
 109 protected:
 110     void OnSpinButton(wxSpinEvent& event)
 111     {
 112         m_spin->SetTextValue(event.GetPosition());
 113
 114         event.Skip();
 115     }
 116
 117 private:
 118     wxSpinCtrl *m_spin;
 119
 120     DECLARE_EVENT_TABLE()
 121 };
 122
 123 BEGIN_EVENT_TABLE(wxSpinCtrlButton, wxSpinButton)
 124     EVT_SPIN(-1, wxSpinCtrlButton::OnSpinButton)
 125 END_EVENT_TABLE()
 126
 127 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
 128
 129 // ============================================================================
 130 // implementation
 131 // ============================================================================
 132
 133 // ----------------------------------------------------------------------------
 134 // wxSpinCtrl creation
 135 // ----------------------------------------------------------------------------
 136
 137 void wxSpinCtrl::Init()
 138 {
 139     m_text = NULL;
 140     m_btn = NULL;
 141 }
 142
 143 bool wxSpinCtrl::Create(wxWindow *parent,
 144                         wxWindowID id,
 145                         const wxString& value,
 146                         const wxPoint& pos,
 147                         const wxSize& size,
 148                         long style,
 149                         int min,
 150                         int max,
 151                         int initial,
 152                         const wxString& name)
 153 {
 154     if ( !wxControl::Create(parent, id, pos, size, style,
 155                             wxDefaultValidator, name) )
 156     {
 157         return FALSE;
 158     }
 159
 160     // the string value overrides the numeric one (for backwards compatibility
 161     // reasons and also because it is simpler to satisfy the string value which
 162     // comes much sooner in the list of arguments and leave the initial
 163     // parameter unspecified)
 164     if ( !value.empty() )
 165     {
 166         long l;
 167         if ( value.ToLong(&l) )
 168             initial = l;
 169     }
 170
 171     SetBackgroundColour(*wxRED);
 172     m_text = new wxSpinCtrlText(this, value);
 173     m_btn = new wxSpinCtrlButton(this, style);
 174
 175     m_btn->SetRange(min, max);
 176     m_btn->SetValue(initial);
 177 #ifdef __WXMAC__
 178     wxSize csize = size ;
 179     if ( size.y == -1 ) {
 180       csize.y = m_text->GetSize().y ;
 181     }
 182     DoSetSize(pos.x, pos.y, csize.x, csize.y);
 183 #else
 184     DoSetSize(pos.x, pos.y, size.x, size.y);
 185 #endif
 186     // have to disable this window to avoid interfering it with message
 187     // processing to the text and the button... but pretend it is enabled to
 188     // make IsEnabled() return TRUE
 189     wxControl::Enable(FALSE); // don't use non virtual Disable() here!
 190     m_isEnabled = TRUE;
 191
 192     // we don't even need to show this window itself - and not doing it avoids
 193     // that it overwrites the text control
 194     wxControl::Show(FALSE);
 195 #ifndef __WXMAC__
 196     m_isShown = TRUE;
 197 #endif
 198     return TRUE;
 199 }
 200
 201 wxSpinCtrl::~wxSpinCtrl()
 202 {
 203     // delete the controls now, don't leave them alive even though they woudl
 204     // still be eventually deleted by our parent - but it will be too late, the
 205     // user code expects them to be gone now
 206     delete m_text;
 207     delete m_btn;
 208 }
 209
 210 // ----------------------------------------------------------------------------
 211 // geometry
 212 // ----------------------------------------------------------------------------
 213
 214 wxSize wxSpinCtrl::DoGetBestClientSize() const
 215 {
 216     wxSize sizeBtn = m_btn->GetBestSize(),
 217            sizeText = m_text->GetBestSize();
 218
 219     return wxSize(sizeBtn.x + sizeText.x + MARGIN, sizeText.y);
 220 }
 221
 222 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 223 {
 224     wxControl::DoMoveWindow(x, y, width, height);
 225
 226     // position the subcontrols inside the client area
 227     wxSize sizeBtn = m_btn->GetSize();
 228
 229     wxCoord wText = width - sizeBtn.x;
 230     m_text->SetSize(x, y, wText, height);
 231     m_btn->SetSize(x + wText + MARGIN, y, -1, height);
 232 }
 233
 234 // ----------------------------------------------------------------------------
 235 // operations forwarded to the subcontrols
 236 // ----------------------------------------------------------------------------
 237
 238 bool wxSpinCtrl::Enable(bool enable)
 239 {
 240     if ( !wxControl::Enable(enable) )
 241         return FALSE;
 242
 243     m_btn->Enable(enable);
 244     m_text->Enable(enable);
 245
 246     return TRUE;
 247 }
 248
 249 bool wxSpinCtrl::Show(bool show)
 250 {
 251     if ( !wxControl::Show(show) )
 252         return FALSE;
 253
 254     // under GTK Show() is called the first time before we are fully
 255     // constructed
 256     if ( m_btn )
 257     {
 258         m_btn->Show(show);
 259         m_text->Show(show);
 260     }
 261
 262     return TRUE;
 263 }
 264
 265 // ----------------------------------------------------------------------------
 266 // value and range access
 267 // ----------------------------------------------------------------------------
 268
 269 bool wxSpinCtrl::GetTextValue(int *val) const
 270 {
 271     long l;
 272     if ( !m_text->GetValue().ToLong(&l) )
 273     {
 274         // not a number at all
 275         return FALSE;
 276     }
 277
 278     if ( l < GetMin() || l > GetMax() )
 279     {
 280         // out of range
 281         return FALSE;
 282     }
 283
 284     *val = l;
 285
 286     return TRUE;
 287 }
 288
 289 int wxSpinCtrl::GetValue() const
 290 {
 291     return m_btn ? m_btn->GetValue() : 0;
 292 }
 293
 294 int wxSpinCtrl::GetMin() const
 295 {
 296     return m_btn ? m_btn->GetMin() : 0;
 297 }
 298
 299 int wxSpinCtrl::GetMax() const
 300 {
 301     return m_btn ? m_btn->GetMax() : 0;
 302 }
 303
 304 // ----------------------------------------------------------------------------
 305 // changing value and range
 306 // ----------------------------------------------------------------------------
 307
 308 void wxSpinCtrl::SetTextValue(int val)
 309 {
 310     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetTextValue") );
 311
 312     m_text->SetValue(wxString::Format(_T("%d"), val));
 313
 314     // select all text
 315     m_text->SetSelection(0, -1);
 316
 317     // and give focus to the control!
 318     m_text->SetFocus();
 319 }
 320
 321 void wxSpinCtrl::SetValue(int val)
 322 {
 323     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetValue") );
 324
 325     SetTextValue(val);
 326
 327     m_btn->SetValue(val);
 328 }
 329
 330 void wxSpinCtrl::SetValue(const wxString& text)
 331 {
 332     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetValue") );
 333
 334     long val;
 335     if ( text.ToLong(&val) && ((val > INT_MIN) && (val < INT_MAX)) )
 336     {
 337         SetValue((int)val);
 338     }
 339     else // not a number at all or out of range
 340     {
 341         m_text->SetValue(text);
 342         m_text->SetSelection(0, -1);
 343     }
 344 }
 345
 346 void wxSpinCtrl::SetRange(int min, int max)
 347 {
 348     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetRange") );
 349
 350     m_btn->SetRange(min, max);
 351 }
 352
 353 #endif // wxUSE_SPINCTRL
 354 #endif // !wxPort-with-native-spinctrl