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__)) || \
  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
 151     m_text = new wxSpinCtrlText(this, value);
 152     m_btn = new wxSpinCtrlButton(this, style);
 153
 154     m_btn->SetRange(min, max);
 155     m_btn->SetValue(initial);
 156
 157     DoSetSize(pos.x, pos.y, size.x, size.y);
 158
 159     // have to disable this window to avoid interfering it with message
 160     // processing to the text and the button... but pretend it is enabled to
 161     // make IsEnabled() return TRUE
 162     wxControl::Enable(FALSE); // don't use non virtual Disable() here!
 163     m_isEnabled = TRUE;
 164
 165     // we don't even need to show this window itself - and not doing it avoids
 166     // that it overwrites the text control
 167     wxControl::Show(FALSE);
 168     m_isShown = TRUE;
 169
 170     return TRUE;
 171 }
 172
 173 wxSpinCtrl::~wxSpinCtrl()
 174 {
 175     // delete the controls now, don't leave them alive even though they woudl
 176     // still be eventually deleted by our parent - but it will be too late, the
 177     // user code expects them to be gone now
 178     delete m_text;
 179     delete m_btn;
 180 }
 181
 182 // ----------------------------------------------------------------------------
 183 // geometry
 184 // ----------------------------------------------------------------------------
 185
 186 wxSize wxSpinCtrl::DoGetBestClientSize() const
 187 {
 188     wxSize sizeBtn = m_btn->GetBestSize(),
 189            sizeText = m_text->GetBestSize();
 190
 191     return wxSize(sizeBtn.x + sizeText.x + MARGIN, sizeText.y);
 192 }
 193
 194 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 195 {
 196     wxControl::DoMoveWindow(x, y, width, height);
 197
 198     // position the subcontrols inside the client area
 199     wxSize sizeBtn = m_btn->GetSize();
 200
 201     wxCoord wText = width - sizeBtn.x;
 202     m_text->SetSize(x, y, wText, height);
 203     m_btn->SetSize(x + wText + MARGIN, y, -1, height);
 204 }
 205
 206 // ----------------------------------------------------------------------------
 207 // operations forwarded to the subcontrols
 208 // ----------------------------------------------------------------------------
 209
 210 bool wxSpinCtrl::Enable(bool enable)
 211 {
 212     if ( !wxControl::Enable(enable) )
 213         return FALSE;
 214
 215     m_btn->Enable(enable);
 216     m_text->Enable(enable);
 217
 218     return TRUE;
 219 }
 220
 221 bool wxSpinCtrl::Show(bool show)
 222 {
 223     if ( !wxControl::Show(show) )
 224         return FALSE;
 225
 226     // under GTK Show() is called the first time before we are fully
 227     // constructed
 228     if ( m_btn )
 229     {
 230         m_btn->Show(show);
 231         m_text->Show(show);
 232     }
 233
 234     return TRUE;
 235 }
 236
 237 // ----------------------------------------------------------------------------
 238 // value and range access
 239 // ----------------------------------------------------------------------------
 240
 241 bool wxSpinCtrl::GetTextValue(int *val) const
 242 {
 243     long l;
 244     if ( !m_text->GetValue().ToLong(&l) )
 245     {
 246         // not a number at all
 247         return FALSE;
 248     }
 249
 250     if ( l < GetMin() || l > GetMax() )
 251     {
 252         // out of range
 253         return FALSE;
 254     }
 255
 256     *val = l;
 257
 258     return TRUE;
 259 }
 260
 261 int wxSpinCtrl::GetValue() const
 262 {
 263     return m_btn ? m_btn->GetValue() : 0;
 264 }
 265
 266 int wxSpinCtrl::GetMin() const
 267 {
 268     return m_btn ? m_btn->GetMin() : 0;
 269 }
 270
 271 int wxSpinCtrl::GetMax() const
 272 {
 273     return m_btn ? m_btn->GetMax() : 0;
 274 }
 275
 276 // ----------------------------------------------------------------------------
 277 // changing value and range
 278 // ----------------------------------------------------------------------------
 279
 280 void wxSpinCtrl::SetTextValue(int val)
 281 {
 282     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetTextValue") );
 283
 284     m_text->SetValue(wxString::Format(_T("%d"), val));
 285
 286     // select all text
 287     m_text->SetSelection(0, -1);
 288
 289     // and give focus to the control!
 290     m_text->SetFocus();
 291 }
 292
 293 void wxSpinCtrl::SetValue(int val)
 294 {
 295     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetValue") );
 296
 297     SetTextValue(val);
 298
 299     m_btn->SetValue(val);
 300 }
 301
 302 void wxSpinCtrl::SetValue(const wxString& text)
 303 {
 304     wxCHECK_RET( m_text, _T("invalid call to wxSpinCtrl::SetValue") );
 305
 306     long val;
 307     if ( text.ToLong(&val) && ((val > INT_MIN) && (val < INT_MAX)) )
 308     {
 309         SetValue((int)val);
 310     }
 311     else // not a number at all or out of range
 312     {
 313         m_text->SetValue(text);
 314         m_text->SetSelection(0, -1);
 315     }
 316 }
 317
 318 void wxSpinCtrl::SetRange(int min, int max)
 319 {
 320     wxCHECK_RET( m_btn, _T("invalid call to wxSpinCtrl::SetRange") );
 321
 322     m_btn->SetRange(min, max);
 323 }
 324
 325 #endif // !wxPort-with-native-spinctrl