samples/widgets/spinbtn.cpp

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