samples/widgets/spinbtn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWindows Widgets Sample
   3 // Name:        spinbtn.cpp
   4 // Purpose:     Part of the widgets sample showing wxSpinButton
   5 // Author:      Vadim Zeitlin
   6 // Created:     16.04.01
   7 // Id:          $Id$
   8 // Copyright:   (c) 2001 Vadim Zeitlin
   9 // License:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers
  28 #ifndef WX_PRECOMP
  29     #include "wx/log.h"
  30
  31     #include "wx/button.h"
  32     #include "wx/checkbox.h"
  33     #include "wx/radiobox.h"
  34     #include "wx/statbox.h"
  35     #include "wx/textctrl.h"
  36 #endif
  37
  38 #include "wx/spinbutt.h"
  39 #include "wx/spinctrl.h"
  40
  41 #include "wx/sizer.h"
  42
  43 #include "widgets.h"
  44 #if 1
  45 #include "icons/spinbtn.xpm"
  46
  47 // ----------------------------------------------------------------------------
  48 // constants
  49 // ----------------------------------------------------------------------------
  50
  51 // control ids
  52 enum
  53 {
  54     SpinBtnPage_Reset = 100,
  55     SpinBtnPage_Clear,
  56     SpinBtnPage_SetValue,
  57     SpinBtnPage_SetMinAndMax,
  58     SpinBtnPage_CurValueText,
  59     SpinBtnPage_ValueText,
  60     SpinBtnPage_MinText,
  61     SpinBtnPage_MaxText,
  62     SpinBtnPage_SpinBtn,
  63     SpinBtnPage_SpinCtrl
  64 };
  65
  66 // ----------------------------------------------------------------------------
  67 // SpinBtnWidgetsPage
  68 // ----------------------------------------------------------------------------
  69
  70 class SpinBtnWidgetsPage : public WidgetsPage
  71 {
  72 public:
  73     SpinBtnWidgetsPage(wxNotebook *notebook, wxImageList *imaglist);
  74     virtual ~SpinBtnWidgetsPage();
  75
  76 protected:
  77     // event handlers
  78     void OnButtonReset(wxCommandEvent& event);
  79     void OnButtonClear(wxCommandEvent& event);
  80     void OnButtonSetValue(wxCommandEvent& event);
  81     void OnButtonSetMinAndMax(wxCommandEvent& event);
  82
  83     void OnCheckOrRadioBox(wxCommandEvent& event);
  84
  85     void OnSpinBtn(wxCommandEvent& event);
  86     void OnSpinBtnUp(wxCommandEvent& event);
  87     void OnSpinBtnDown(wxCommandEvent& event);
  88     void OnSpinCtrl(wxCommandEvent& event);
  89
  90     void OnUpdateUIValueButton(wxUpdateUIEvent& event);
  91     void OnUpdateUIMinMaxButton(wxUpdateUIEvent& event);
  92
  93     void OnUpdateUIResetButton(wxUpdateUIEvent& event);
  94
  95     void OnUpdateUICurValueText(wxUpdateUIEvent& event);
  96
  97     // reset the spinbtn parameters
  98     void Reset();
  99
 100     // (re)create the spinbtn
 101     void CreateSpin();
 102
 103     // is this spinbtn value in range?
 104     bool IsValidValue(int val) const
 105         { return (val >= m_min) && (val <= m_max); }
 106
 107     // the spinbtn range
 108     int m_min, m_max;
 109
 110     // the controls
 111     // ------------
 112
 113     // the check/radio boxes for styles
 114     wxCheckBox *m_chkVert,
 115                *m_chkWrap;
 116
 117     // the spinbtn and the spinctrl and the sizer containing them
 118     wxSpinButton *m_spinbtn;
 119     wxSpinCtrl *m_spinctrl;
 120
 121     wxSizer *m_sizerSpin;
 122
 123     // the text entries for set value/range
 124     wxTextCtrl *m_textValue,
 125                *m_textMin,
 126                *m_textMax;
 127
 128 private:
 129     DECLARE_EVENT_TABLE()
 130     DECLARE_WIDGETS_PAGE(SpinBtnWidgetsPage)
 131 };
 132
 133 // ----------------------------------------------------------------------------
 134 // event tables
 135 // ----------------------------------------------------------------------------
 136
 137 BEGIN_EVENT_TABLE(SpinBtnWidgetsPage, WidgetsPage)
 138     EVT_BUTTON(SpinBtnPage_Reset, SpinBtnWidgetsPage::OnButtonReset)
 139     EVT_BUTTON(SpinBtnPage_SetValue, SpinBtnWidgetsPage::OnButtonSetValue)
 140     EVT_BUTTON(SpinBtnPage_SetMinAndMax, SpinBtnWidgetsPage::OnButtonSetMinAndMax)
 141
 142     EVT_UPDATE_UI(SpinBtnPage_SetValue, SpinBtnWidgetsPage::OnUpdateUIValueButton)
 143     EVT_UPDATE_UI(SpinBtnPage_SetMinAndMax, SpinBtnWidgetsPage::OnUpdateUIMinMaxButton)
 144
 145     EVT_UPDATE_UI(SpinBtnPage_Reset, SpinBtnWidgetsPage::OnUpdateUIResetButton)
 146
 147     EVT_UPDATE_UI(SpinBtnPage_CurValueText, SpinBtnWidgetsPage::OnUpdateUICurValueText)
 148
 149     EVT_SPIN(SpinBtnPage_SpinBtn, SpinBtnWidgetsPage::OnSpinBtn)
 150     EVT_SPIN_UP(SpinBtnPage_SpinBtn, SpinBtnWidgetsPage::OnSpinBtnUp)
 151     EVT_SPIN_DOWN(SpinBtnPage_SpinBtn, SpinBtnWidgetsPage::OnSpinBtnDown)
 152     EVT_SPINCTRL(SpinBtnPage_SpinCtrl, SpinBtnWidgetsPage::OnSpinCtrl)
 153
 154     EVT_CHECKBOX(-1, SpinBtnWidgetsPage::OnCheckOrRadioBox)
 155     EVT_RADIOBOX(-1, SpinBtnWidgetsPage::OnCheckOrRadioBox)
 156 END_EVENT_TABLE()
 157
 158 // ============================================================================
 159 // implementation
 160 // ============================================================================
 161
 162 IMPLEMENT_WIDGETS_PAGE(SpinBtnWidgetsPage, _T("Spin"));
 163
 164 SpinBtnWidgetsPage::SpinBtnWidgetsPage(wxNotebook *notebook,
 165                                        wxImageList *imaglist)
 166                   : WidgetsPage(notebook)
 167 {
 168     m_chkVert = NULL;
 169     m_chkWrap = NULL;
 170     m_spinbtn = NULL;
 171     m_spinctrl = NULL;
 172     m_textValue = NULL;
 173     m_textMin = NULL;
 174     m_textMax = NULL;
 175     imaglist->Add(wxBitmap(spinbtn_xpm));
 176
 177     // init everything
 178     m_min = 0;
 179     m_max = 10;
 180
 181     m_chkVert =
 182     m_chkWrap = (wxCheckBox *)NULL;
 183
 184     m_spinbtn = (wxSpinButton *)NULL;
 185     m_sizerSpin = (wxSizer *)NULL;
 186
 187     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 188
 189     // left pane
 190     wxStaticBox *box = new wxStaticBox(this, -1, _T("&Set style"));
 191     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 192
 193     m_chkVert = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Vertical"));
 194     m_chkWrap = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Wrap"));
 195
 196     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 197
 198     wxButton *btn = new wxButton(this, SpinBtnPage_Reset, _T("&Reset"));
 199     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 200
 201     // middle pane
 202     wxStaticBox *box2 = new wxStaticBox(this, -1, _T("&Change spinbtn value"));
 203     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 204
 205     wxTextCtrl *text;
 206     wxSizer *sizerRow = CreateSizerWithTextAndLabel(_T("Current value"),
 207                                                     SpinBtnPage_CurValueText,
 208                                                     &text);
 209     text->SetEditable(FALSE);
 210
 211     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 212
 213     sizerRow = CreateSizerWithTextAndButton(SpinBtnPage_SetValue,
 214                                             _T("Set &value"),
 215                                             SpinBtnPage_ValueText,
 216                                             &m_textValue);
 217     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 218
 219     sizerRow = CreateSizerWithTextAndButton(SpinBtnPage_SetMinAndMax,
 220                                             _T("&Min and max"),
 221                                             SpinBtnPage_MinText,
 222                                             &m_textMin);
 223
 224     m_textMax = new wxTextCtrl(this, SpinBtnPage_MaxText, _T(""));
 225     sizerRow->Add(m_textMax, 1, wxLEFT | wxALIGN_CENTRE_VERTICAL, 5);
 226
 227     m_textMin->SetValue( wxString::Format(_T("%d"), m_min) );
 228     m_textMax->SetValue( wxString::Format(_T("%d"), m_max) );
 229
 230     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 231
 232     // right pane
 233     wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL);
 234     sizerRight->SetMinSize(150, 0);
 235     m_sizerSpin = sizerRight; // save it to modify it later
 236
 237     Reset();
 238     CreateSpin();
 239
 240     // the 3 panes panes compose the window
 241     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 242     sizerTop->Add(sizerMiddle, 0, wxGROW | wxALL, 10);
 243     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 244
 245     // final initializations
 246     SetAutoLayout(TRUE);
 247     SetSizer(sizerTop);
 248
 249     sizerTop->Fit(this);
 250 }
 251
 252 SpinBtnWidgetsPage::~SpinBtnWidgetsPage()
 253 {
 254 }
 255
 256 // ----------------------------------------------------------------------------
 257 // operations
 258 // ----------------------------------------------------------------------------
 259
 260 void SpinBtnWidgetsPage::Reset()
 261 {
 262     m_chkVert->SetValue(TRUE);
 263     m_chkWrap->SetValue(FALSE);
 264 }
 265
 266 void SpinBtnWidgetsPage::CreateSpin()
 267 {
 268     int flags = 0;
 269
 270     bool isVert = m_chkVert->GetValue();
 271     if ( isVert )
 272         flags |= wxSP_VERTICAL;
 273     else
 274         flags |= wxSP_HORIZONTAL;
 275
 276     if ( m_chkWrap->GetValue() )
 277         flags |= wxSP_WRAP;
 278
 279     int val = m_min;
 280     if ( m_spinbtn )
 281     {
 282         int valOld = m_spinbtn->GetValue();
 283         if ( !IsValidValue(valOld) )
 284         {
 285             val = valOld;
 286         }
 287
 288         m_sizerSpin->Detach( m_spinbtn );
 289         m_sizerSpin->Detach( m_spinctrl );
 290
 291         // there are 3 spacers left
 292         m_sizerSpin->Remove( 0u );
 293         m_sizerSpin->Remove( 0u );
 294         m_sizerSpin->Remove( 0u );
 295
 296         delete m_spinbtn;
 297         delete m_spinctrl;
 298     }
 299
 300     m_spinbtn = new wxSpinButton(this, SpinBtnPage_SpinBtn,
 301                                  wxDefaultPosition, wxDefaultSize,
 302                                  flags);
 303
 304     m_spinbtn->SetValue(val);
 305     m_spinbtn->SetRange(m_min, m_max);
 306
 307     m_spinctrl = new wxSpinCtrl(this, SpinBtnPage_SpinCtrl,
 308                                 wxString::Format(_T("%d"), val),
 309                                 wxDefaultPosition, wxDefaultSize,
 310                                 flags,
 311                                 m_min, m_max, val);
 312
 313     m_sizerSpin->Add(0, 0, 1);
 314     m_sizerSpin->Add(m_spinbtn, 0, wxALIGN_CENTRE | wxALL, 5);
 315     m_sizerSpin->Add(0, 0, 1);
 316     m_sizerSpin->Add(m_spinctrl, 0, wxALIGN_CENTRE | wxALL, 5);
 317     m_sizerSpin->Add(0, 0, 1);
 318
 319     m_sizerSpin->Layout();
 320 }
 321
 322 // ----------------------------------------------------------------------------
 323 // event handlers
 324 // ----------------------------------------------------------------------------
 325
 326 void SpinBtnWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 327 {
 328     Reset();
 329
 330     CreateSpin();
 331 }
 332
 333 void SpinBtnWidgetsPage::OnButtonSetMinAndMax(wxCommandEvent& WXUNUSED(event))
 334 {
 335     long minNew,
 336          maxNew = 0; // init to suppress compiler warning
 337     if ( !m_textMin->GetValue().ToLong(&minNew) ||
 338          !m_textMax->GetValue().ToLong(&maxNew) ||
 339          minNew >= maxNew )
 340     {
 341         wxLogWarning(_T("Invalid min/max values for the spinbtn."));
 342
 343         return;
 344     }
 345
 346     m_min = minNew;
 347     m_max = maxNew;
 348
 349     m_spinbtn->SetRange(minNew, maxNew);
 350     m_spinctrl->SetRange(minNew, maxNew);
 351 }
 352
 353 void SpinBtnWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event))
 354 {
 355     long val;
 356     if ( !m_textValue->GetValue().ToLong(&val) || !IsValidValue(val) )
 357     {
 358         wxLogWarning(_T("Invalid spinbtn value."));
 359
 360         return;
 361     }
 362
 363     m_spinbtn->SetValue(val);
 364     m_spinctrl->SetValue(val);
 365 }
 366
 367 void SpinBtnWidgetsPage::OnUpdateUIValueButton(wxUpdateUIEvent& event)
 368 {
 369     long val;
 370     event.Enable( m_textValue->GetValue().ToLong(&val) && IsValidValue(val) );
 371 }
 372
 373 void SpinBtnWidgetsPage::OnUpdateUIMinMaxButton(wxUpdateUIEvent& event)
 374 {
 375     long mn, mx;
 376     event.Enable( m_textMin->GetValue().ToLong(&mn) &&
 377                   m_textMax->GetValue().ToLong(&mx) &&
 378                   mn < mx);
 379 }
 380
 381 void SpinBtnWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 382 {
 383     event.Enable( !m_chkVert->GetValue() || m_chkWrap->GetValue() );
 384 }
 385
 386 void SpinBtnWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 387 {
 388     CreateSpin();
 389 }
 390
 391 void SpinBtnWidgetsPage::OnUpdateUICurValueText(wxUpdateUIEvent& event)
 392 {
 393     event.SetText( wxString::Format(_T("%d"), m_spinbtn->GetValue()));
 394 }
 395
 396 void SpinBtnWidgetsPage::OnSpinBtn(wxCommandEvent& event)
 397 {
 398     int value = event.GetInt();
 399
 400     wxASSERT_MSG( value == m_spinbtn->GetValue(),
 401                   _T("spinbtn value should be the same") );
 402
 403     wxLogMessage(_T("Spin button value changed, now %d"), value);
 404 }
 405
 406 void SpinBtnWidgetsPage::OnSpinBtnUp(wxCommandEvent& event)
 407 {
 408     wxLogMessage( _T("Spin button value incremented, will be %ld (was %d)"),
 409                   event.GetInt(), m_spinbtn->GetValue() );
 410 }
 411
 412 void SpinBtnWidgetsPage::OnSpinBtnDown(wxCommandEvent& event)
 413 {
 414     wxLogMessage( _T("Spin button value decremented, will be %ld (was %d)"),
 415                   event.GetInt(), m_spinbtn->GetValue() );
 416 }
 417
 418 void SpinBtnWidgetsPage::OnSpinCtrl(wxCommandEvent& event)
 419 {
 420     if (!m_spinctrl)
 421         return;
 422     int value = event.GetInt();
 423
 424     wxASSERT_MSG( value == m_spinctrl->GetValue(),
 425                   _T("spinctrl value should be the same") );
 426
 427     wxLogMessage(_T("Spin control value changed, now %d"), value);
 428 }
 429 #endif