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/app.h"
  30     #include "wx/log.h"
  31
  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/sizer.h"
  40
  41 #include "widgets.h"
  42
  43 #include "icons/button.xpm"
  44
  45 // ----------------------------------------------------------------------------
  46 // constants
  47 // ----------------------------------------------------------------------------
  48
  49 // control ids
  50 enum
  51 {
  52     ButtonPage_Reset = 100,
  53     ButtonPage_ChangeLabel,
  54     ButtonPage_Button
  55 };
  56
  57 // radio boxes
  58 enum
  59 {
  60     ButtonHAlign_Left,
  61     ButtonHAlign_Centre,
  62     ButtonHAlign_Right
  63 };
  64
  65 enum
  66 {
  67     ButtonVAlign_Top,
  68     ButtonVAlign_Centre,
  69     ButtonVAlign_Bottom
  70 };
  71
  72 // ----------------------------------------------------------------------------
  73 // ButtonWidgetsPage
  74 // ----------------------------------------------------------------------------
  75
  76 class ButtonWidgetsPage : public WidgetsPage
  77 {
  78 public:
  79     ButtonWidgetsPage(wxNotebook *notebook, wxImageList *imaglist);
  80     virtual ~ButtonWidgetsPage();
  81
  82 protected:
  83     // event handlers
  84     void OnCheckOrRadioBox(wxCommandEvent& event);
  85
  86     void OnButton(wxCommandEvent& event);
  87     void OnButtonReset(wxCommandEvent& event);
  88     void OnButtonChangeLabel(wxCommandEvent& event);
  89
  90     // reset the wxButton parameters
  91     void Reset();
  92
  93     // (re)create the wxButton
  94     void CreateButton();
  95
  96     // the controls
  97     // ------------
  98
  99     // the check/radio boxes for styles
 100     wxCheckBox *m_chkImage,
 101                *m_chkFit,
 102                *m_chkDefault;
 103
 104     wxRadioBox *m_radioHAlign,
 105                *m_radioVAlign;
 106
 107     // the gauge itself and the sizer it is in
 108     wxButton *m_button;
 109     wxSizer *m_sizerButton;
 110
 111     // the text entries for command parameters
 112     wxTextCtrl *m_textLabel;
 113
 114 private:
 115     DECLARE_EVENT_TABLE();
 116     DECLARE_WIDGETS_PAGE(ButtonWidgetsPage);
 117 };
 118
 119 // ----------------------------------------------------------------------------
 120 // event tables
 121 // ----------------------------------------------------------------------------
 122
 123 BEGIN_EVENT_TABLE(ButtonWidgetsPage, WidgetsPage)
 124     EVT_BUTTON(ButtonPage_Button, ButtonWidgetsPage::OnButton)
 125
 126     EVT_BUTTON(ButtonPage_Reset, ButtonWidgetsPage::OnButtonReset)
 127     EVT_BUTTON(ButtonPage_ChangeLabel, ButtonWidgetsPage::OnButtonChangeLabel)
 128
 129     EVT_CHECKBOX(-1, ButtonWidgetsPage::OnCheckOrRadioBox)
 130     EVT_RADIOBOX(-1, ButtonWidgetsPage::OnCheckOrRadioBox)
 131 END_EVENT_TABLE()
 132
 133 // ============================================================================
 134 // implementation
 135 // ============================================================================
 136
 137 IMPLEMENT_WIDGETS_PAGE(ButtonWidgetsPage, _T("Button"));
 138
 139 ButtonWidgetsPage::ButtonWidgetsPage(wxNotebook *notebook,
 140                                        wxImageList *imaglist)
 141                   : WidgetsPage(notebook)
 142 {
 143     imaglist->Add(wxBitmap(button_xpm));
 144
 145     // init everything
 146     m_chkImage =
 147     m_chkFit =
 148     m_chkDefault = (wxCheckBox *)NULL;
 149
 150     m_radioHAlign =
 151     m_radioVAlign = (wxRadioBox *)NULL;
 152
 153     m_textLabel = (wxTextCtrl *)NULL;
 154
 155     m_button = (wxButton *)NULL;
 156     m_sizerButton = (wxSizer *)NULL;
 157
 158     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 159
 160     // left pane
 161     wxStaticBox *box = new wxStaticBox(this, -1, _T("&Set style"));
 162
 163     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 164
 165     m_chkImage = CreateCheckBoxAndAddToSizer(sizerLeft, _T("With &image"));
 166     m_chkFit = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Fit exactly"));
 167     m_chkDefault = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Default"));
 168
 169 #ifndef __WXUNIVERSAL__
 170     // only wxUniv currently supoprts buttons with images
 171     m_chkImage->Disable();
 172 #endif // !wxUniv
 173
 174     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 175
 176     // should be in sync with enums Button[HV]Align!
 177     static const wxString halign[] =
 178     {
 179         _T("left"),
 180         _T("centre"),
 181         _T("right"),
 182     };
 183
 184     static const wxString valign[] =
 185     {
 186         _T("top"),
 187         _T("centre"),
 188         _T("bottom"),
 189     };
 190
 191     m_radioHAlign = new wxRadioBox(this, -1, _T("&Horz alignment"),
 192                                    wxDefaultPosition, wxDefaultSize,
 193                                    WXSIZEOF(halign), halign);
 194     m_radioVAlign = new wxRadioBox(this, -1, _T("&Vert alignment"),
 195                                    wxDefaultPosition, wxDefaultSize,
 196                                    WXSIZEOF(valign), valign);
 197
 198     sizerLeft->Add(m_radioHAlign, 0, wxGROW | wxALL, 5);
 199     sizerLeft->Add(m_radioVAlign, 0, wxGROW | wxALL, 5);
 200
 201     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 202
 203     wxButton *btn = new wxButton(this, ButtonPage_Reset, _T("&Reset"));
 204     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 205
 206     // middle pane
 207     wxStaticBox *box2 = new wxStaticBox(this, -1, _T("&Operations"));
 208     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 209
 210     wxSizer *sizerRow = CreateSizerWithTextAndButton(ButtonPage_ChangeLabel,
 211                                                      _T("Change label"),
 212                                                      -1,
 213                                                      &m_textLabel);
 214
 215     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 216
 217     // right pane
 218     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 219     m_button = new wxButton(this, ButtonPage_Button, _T("&Press me!"));
 220     sizerRight->Add(0, 0, 1, wxCENTRE);
 221     sizerRight->Add(m_button, 1, wxCENTRE);
 222     sizerRight->Add(0, 0, 1, wxCENTRE);
 223     sizerRight->SetMinSize(250, 0);
 224     m_sizerButton = sizerRight; // save it to modify it later
 225
 226     // the 3 panes panes compose the window
 227     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 228     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 229     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 230
 231     // final initializations
 232     Reset();
 233
 234     SetAutoLayout(TRUE);
 235     SetSizer(sizerTop);
 236
 237     sizerTop->Fit(this);
 238 }
 239
 240 ButtonWidgetsPage::~ButtonWidgetsPage()
 241 {
 242 }
 243
 244 // ----------------------------------------------------------------------------
 245 // operations
 246 // ----------------------------------------------------------------------------
 247
 248 void ButtonWidgetsPage::Reset()
 249 {
 250     m_chkFit->SetValue(TRUE);
 251     m_chkImage->SetValue(FALSE);
 252     m_chkDefault->SetValue(FALSE);
 253
 254     m_radioHAlign->SetSelection(ButtonHAlign_Centre);
 255     m_radioVAlign->SetSelection(ButtonVAlign_Centre);
 256 }
 257
 258 void ButtonWidgetsPage::CreateButton()
 259 {
 260     wxString label;
 261     if ( m_button )
 262     {
 263         label = m_button->GetLabel();
 264
 265         size_t count = m_sizerButton->GetChildren().GetCount();
 266         for ( size_t n = 0; n < count; n++ )
 267         {
 268             m_sizerButton->Remove(0);
 269         }
 270
 271         delete m_button;
 272     }
 273     else
 274     {
 275         label = _T("&Press me!");
 276     }
 277
 278     int flags = 0;
 279     switch ( m_radioHAlign->GetSelection() )
 280     {
 281         case ButtonHAlign_Left:
 282             flags |= wxALIGN_LEFT;
 283             break;
 284
 285         default:
 286             wxFAIL_MSG(_T("unexpected radiobox selection"));
 287             // fall through
 288
 289         case ButtonHAlign_Centre:
 290             flags |= wxALIGN_CENTRE_HORIZONTAL;
 291             break;
 292
 293         case ButtonHAlign_Right:
 294             flags |= wxALIGN_RIGHT;
 295             break;
 296     }
 297
 298     switch ( m_radioVAlign->GetSelection() )
 299     {
 300         case ButtonVAlign_Top:
 301             flags |= wxALIGN_TOP;
 302             break;
 303
 304         default:
 305             wxFAIL_MSG(_T("unexpected radiobox selection"));
 306             // fall through
 307
 308         case ButtonVAlign_Centre:
 309             flags |= wxALIGN_CENTRE_VERTICAL;
 310             break;
 311
 312         case ButtonVAlign_Bottom:
 313             flags |= wxALIGN_BOTTOM;
 314             break;
 315     }
 316
 317     m_button = new wxButton(this, ButtonPage_Button, label,
 318                             wxDefaultPosition, wxDefaultSize,
 319                             flags);
 320
 321 #ifdef __WXUNIVERSAL__
 322     if ( m_chkImage->GetValue() )
 323     {
 324         m_button->SetImageLabel(wxTheApp->GetStdIcon(wxICON_INFORMATION));
 325     }
 326 #endif // wxUniv
 327
 328     if ( m_chkDefault->GetValue() )
 329     {
 330         m_button->SetDefault();
 331     }
 332
 333     if ( m_chkFit->GetValue() )
 334     {
 335         m_sizerButton->Add(0, 0, 1, wxCENTRE);
 336         m_sizerButton->Add(m_button, 1, wxCENTRE);
 337         m_sizerButton->Add(0, 0, 1, wxCENTRE);
 338     }
 339     else
 340     {
 341         m_sizerButton->Add(m_button, 1, wxGROW | wxALL, 5);
 342     }
 343
 344     m_sizerButton->Layout();
 345 }
 346
 347 // ----------------------------------------------------------------------------
 348 // event handlers
 349 // ----------------------------------------------------------------------------
 350
 351 void ButtonWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 352 {
 353     Reset();
 354
 355     CreateButton();
 356 }
 357
 358 void ButtonWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 359 {
 360     CreateButton();
 361 }
 362
 363 void ButtonWidgetsPage::OnButtonChangeLabel(wxCommandEvent& WXUNUSED(event))
 364 {
 365     m_button->SetLabel(m_textLabel->GetValue());
 366 }
 367
 368 void ButtonWidgetsPage::OnButton(wxCommandEvent& event)
 369 {
 370     wxLogMessage(_T("Test button clicked."));
 371 }
 372