samples/widgets/button.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWindows Widgets Sample
   3 // Name:        button.cpp
   4 // Purpose:     Part of the widgets sample showing wxButton
   5 // Author:      Vadim Zeitlin
   6 // Created:     10.04.01
   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/sizer.h"
  39
  40 #include "widgets.h"
  41
  42 #include "icons/button.xpm"
  43
  44 // ----------------------------------------------------------------------------
  45 // constants
  46 // ----------------------------------------------------------------------------
  47
  48 // control ids
  49 enum
  50 {
  51     ButtonPage_Reset = 100,
  52     ButtonPage_ChangeLabel,
  53     ButtonPage_Button
  54 };
  55
  56 // radio boxes
  57 enum
  58 {
  59     ButtonHAlign_Left,
  60     ButtonHAlign_Centre,
  61     ButtonHAlign_Right
  62 };
  63
  64 enum
  65 {
  66     ButtonVAlign_Top,
  67     ButtonVAlign_Centre,
  68     ButtonVAlign_Bottom
  69 };
  70
  71 // ----------------------------------------------------------------------------
  72 // ButtonWidgetsPage
  73 // ----------------------------------------------------------------------------
  74
  75 class ButtonWidgetsPage : public WidgetsPage
  76 {
  77 public:
  78     ButtonWidgetsPage(wxNotebook *notebook, wxImageList *imaglist);
  79     virtual ~ButtonWidgetsPage();
  80
  81 protected:
  82     // event handlers
  83     void OnCheckOrRadioBox(wxCommandEvent& event);
  84
  85     void OnButton(wxCommandEvent& event);
  86     void OnButtonReset(wxCommandEvent& event);
  87     void OnButtonChangeLabel(wxCommandEvent& event);
  88
  89     // reset the wxButton parameters
  90     void Reset();
  91
  92     // (re)create the wxButton
  93     void CreateButton();
  94
  95     // the controls
  96     // ------------
  97
  98     // the check/radio boxes for styles
  99     wxCheckBox *m_chkImage,
 100                *m_chkFit,
 101                *m_chkDefault;
 102
 103     wxRadioBox *m_radioHAlign,
 104                *m_radioVAlign;
 105
 106     // the gauge itself and the sizer it is in
 107     wxButton *m_button;
 108     wxSizer *m_sizerButton;
 109
 110     // the text entries for command parameters
 111     wxTextCtrl *m_textLabel;
 112
 113 private:
 114     DECLARE_EVENT_TABLE();
 115     DECLARE_WIDGETS_PAGE(ButtonWidgetsPage);
 116 };
 117
 118 // ----------------------------------------------------------------------------
 119 // event tables
 120 // ----------------------------------------------------------------------------
 121
 122 BEGIN_EVENT_TABLE(ButtonWidgetsPage, WidgetsPage)
 123     EVT_BUTTON(ButtonPage_Button, ButtonWidgetsPage::OnButton)
 124
 125     EVT_BUTTON(ButtonPage_Reset, ButtonWidgetsPage::OnButtonReset)
 126     EVT_BUTTON(ButtonPage_ChangeLabel, ButtonWidgetsPage::OnButtonChangeLabel)
 127
 128     EVT_CHECKBOX(-1, ButtonWidgetsPage::OnCheckOrRadioBox)
 129     EVT_RADIOBOX(-1, ButtonWidgetsPage::OnCheckOrRadioBox)
 130 END_EVENT_TABLE()
 131
 132 // ============================================================================
 133 // implementation
 134 // ============================================================================
 135
 136 IMPLEMENT_WIDGETS_PAGE(ButtonWidgetsPage, _T("Button"));
 137
 138 ButtonWidgetsPage::ButtonWidgetsPage(wxNotebook *notebook,
 139                                        wxImageList *imaglist)
 140                   : WidgetsPage(notebook)
 141 {
 142     imaglist->Add(wxBitmap(button_xpm));
 143
 144     // init everything
 145     m_chkImage =
 146     m_chkFit =
 147     m_chkDefault = (wxCheckBox *)NULL;
 148
 149     m_radioHAlign =
 150     m_radioVAlign = (wxRadioBox *)NULL;
 151
 152     m_textLabel = (wxTextCtrl *)NULL;
 153
 154     m_button = (wxButton *)NULL;
 155     m_sizerButton = (wxSizer *)NULL;
 156
 157     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 158
 159     // left pane
 160     wxStaticBox *box = new wxStaticBox(this, -1, _T("&Set style"));
 161
 162     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 163
 164     m_chkImage = CreateCheckBoxAndAddToSizer(sizerLeft, _T("With &image"));
 165     m_chkFit = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Fit exactly"));
 166     m_chkDefault = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Default"));
 167
 168 #ifndef __WXUNIVERSAL__
 169     // only wxUniv currently supoprts buttons with images
 170     m_chkImage->Disable();
 171 #endif // !wxUniv
 172
 173     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 174
 175     // should be in sync with enums Button[HV]Align!
 176     static const wxString halign[] =
 177     {
 178         _T("left"),
 179         _T("centre"),
 180         _T("right"),
 181     };
 182
 183     static const wxString valign[] =
 184     {
 185         _T("top"),
 186         _T("centre"),
 187         _T("bottom"),
 188     };
 189
 190     m_radioHAlign = new wxRadioBox(this, -1, _T("&Horz alignment"),
 191                                    wxDefaultPosition, wxDefaultSize,
 192                                    WXSIZEOF(halign), halign);
 193     m_radioVAlign = new wxRadioBox(this, -1, _T("&Vert alignment"),
 194                                    wxDefaultPosition, wxDefaultSize,
 195                                    WXSIZEOF(valign), valign);
 196
 197     sizerLeft->Add(m_radioHAlign, 0, wxGROW | wxALL, 5);
 198     sizerLeft->Add(m_radioVAlign, 0, wxGROW | wxALL, 5);
 199
 200     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 201
 202     wxButton *btn = new wxButton(this, ButtonPage_Reset, _T("&Reset"));
 203     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 204
 205     // middle pane
 206     wxStaticBox *box2 = new wxStaticBox(this, -1, _T("&Operations"));
 207     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 208
 209     wxSizer *sizerRow = CreateSizerWithTextAndButton(ButtonPage_ChangeLabel,
 210                                                      _T("Change label"),
 211                                                      -1,
 212                                                      &m_textLabel);
 213
 214     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 215
 216     // right pane
 217     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 218     m_button = new wxButton(this, ButtonPage_Button, _T("&Press me!"));
 219     sizerRight->Add(0, 0, 1, wxCENTRE);
 220     sizerRight->Add(m_button, 1, wxCENTRE);
 221     sizerRight->Add(0, 0, 1, wxCENTRE);
 222     sizerRight->SetMinSize(250, 0);
 223     m_sizerButton = sizerRight; // save it to modify it later
 224
 225     // the 3 panes panes compose the window
 226     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 227     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 228     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 229
 230     // final initializations
 231     Reset();
 232
 233     SetAutoLayout(TRUE);
 234     SetSizer(sizerTop);
 235
 236     sizerTop->Fit(this);
 237 }
 238
 239 ButtonWidgetsPage::~ButtonWidgetsPage()
 240 {
 241 }
 242
 243 // ----------------------------------------------------------------------------
 244 // operations
 245 // ----------------------------------------------------------------------------
 246
 247 void ButtonWidgetsPage::Reset()
 248 {
 249     m_chkFit->SetValue(TRUE);
 250     m_chkImage->SetValue(FALSE);
 251     m_chkDefault->SetValue(FALSE);
 252
 253     m_radioHAlign->SetSelection(ButtonHAlign_Centre);
 254     m_radioVAlign->SetSelection(ButtonVAlign_Centre);
 255 }
 256
 257 void ButtonWidgetsPage::CreateButton()
 258 {
 259     wxString label;
 260     if ( m_button )
 261     {
 262         label = m_button->GetLabel();
 263
 264         size_t count = m_sizerButton->GetChildren().GetCount();
 265         for ( size_t n = 0; n < count; n++ )
 266         {
 267             m_sizerButton->Remove(0);
 268         }
 269
 270         delete m_button;
 271     }
 272     else
 273     {
 274         label = _T("&Press me!");
 275     }
 276
 277     int flags = 0;
 278     switch ( m_radioHAlign->GetSelection() )
 279     {
 280         case ButtonHAlign_Left:
 281             flags |= wxALIGN_LEFT;
 282             break;
 283
 284         default:
 285             wxFAIL_MSG(_T("unexpected radiobox selection"));
 286             // fall through
 287
 288         case ButtonHAlign_Centre:
 289             flags |= wxALIGN_CENTRE_HORIZONTAL;
 290             break;
 291
 292         case ButtonHAlign_Right:
 293             flags |= wxALIGN_RIGHT;
 294             break;
 295     }
 296
 297     switch ( m_radioVAlign->GetSelection() )
 298     {
 299         case ButtonVAlign_Top:
 300             flags |= wxALIGN_TOP;
 301             break;
 302
 303         default:
 304             wxFAIL_MSG(_T("unexpected radiobox selection"));
 305             // fall through
 306
 307         case ButtonVAlign_Centre:
 308             flags |= wxALIGN_CENTRE_VERTICAL;
 309             break;
 310
 311         case ButtonVAlign_Bottom:
 312             flags |= wxALIGN_BOTTOM;
 313             break;
 314     }
 315
 316     m_button = new wxButton(this, ButtonPage_Button, label,
 317                             wxDefaultPosition, wxDefaultSize,
 318                             flags);
 319
 320 #ifdef __WXUNIVERSAL__
 321     if ( m_chkImage->GetValue() )
 322     {
 323         m_button->SetImageLabel(wxTheApp->GetStdIcon(wxICON_INFORMATION));
 324     }
 325 #endif // wxUniv
 326
 327     if ( m_chkDefault->GetValue() )
 328     {
 329         m_button->SetDefault();
 330     }
 331
 332     if ( m_chkFit->GetValue() )
 333     {
 334         m_sizerButton->Add(0, 0, 1, wxCENTRE);
 335         m_sizerButton->Add(m_button, 1, wxCENTRE);
 336         m_sizerButton->Add(0, 0, 1, wxCENTRE);
 337     }
 338     else
 339     {
 340         m_sizerButton->Add(m_button, 1, wxGROW | wxALL, 5);
 341     }
 342
 343     m_sizerButton->Layout();
 344 }
 345
 346 // ----------------------------------------------------------------------------
 347 // event handlers
 348 // ----------------------------------------------------------------------------
 349
 350 void ButtonWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 351 {
 352     Reset();
 353
 354     CreateButton();
 355 }
 356
 357 void ButtonWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 358 {
 359     CreateButton();
 360 }
 361
 362 void ButtonWidgetsPage::OnButtonChangeLabel(wxCommandEvent& WXUNUSED(event))
 363 {
 364     m_button->SetLabel(m_textLabel->GetValue());
 365 }
 366
 367 void ButtonWidgetsPage::OnButton(wxCommandEvent& event)
 368 {
 369     wxLogMessage(_T("Test button clicked."));
 370 }
 371