contrib/samples/gizmos/led/led.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        led.cpp
   3 // Purpose:     LED sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  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 (this file is usually all you
  28 // need because it includes almost all "standard" wxWidgets headers)
  29 #ifndef WX_PRECOMP
  30     #include "wx/wx.h"
  31 #endif
  32
  33 #include "wx/gizmos/ledctrl.h"
  34 #include "wx/sizer.h"
  35 #include "wx/panel.h"
  36 #include "wx/numdlg.h"
  37
  38 // ----------------------------------------------------------------------------
  39 // private classes
  40 // ----------------------------------------------------------------------------
  41
  42 class MyPanel : public wxPanel
  43 {
  44 public:
  45     MyPanel(wxFrame *frame);
  46
  47     void OnIncrement();
  48     void OnDecrement();
  49     void OnSmallIncrement();
  50     void OnSmallDecrement();
  51     void OnSetValue();
  52     void OnAlignLeft();
  53     void OnAlignCenter();
  54     void OnAlignRight();
  55     void OnDrawFaded();
  56
  57 private:
  58     wxLEDNumberCtrl    *m_led;
  59     wxBoxSizer         *m_sizer;
  60 };
  61
  62 // Define a new application type, each program should derive a class from wxApp
  63 class MyApp : public wxApp
  64 {
  65 public:
  66     // override base class virtuals
  67     // ----------------------------
  68
  69     // this one is called on application startup and is a good place for the app
  70     // initialization (doing it here and not in the ctor allows to have an error
  71     // return: if OnInit() returns false, the application terminates)
  72     virtual bool OnInit();
  73 };
  74
  75 // Define a new frame type: this is going to be our main frame
  76 class MyFrame : public wxFrame
  77 {
  78 public:
  79     // ctor(s)
  80     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size,
  81             long style = wxDEFAULT_FRAME_STYLE);
  82
  83     // event handlers (these functions should _not_ be virtual)
  84     void OnQuit(wxCommandEvent& event);
  85     void OnIncrement(wxCommandEvent& event);
  86     void OnDecrement(wxCommandEvent& event);
  87     void OnSmallIncrement(wxCommandEvent& event);
  88     void OnSmallDecrement(wxCommandEvent& event);
  89     void OnSetValue(wxCommandEvent& event);
  90     void OnAlignLeft(wxCommandEvent& event);
  91     void OnAlignCenter(wxCommandEvent& event);
  92     void OnAlignRight(wxCommandEvent& event);
  93     void OnDrawFaded(wxCommandEvent& event);
  94     void OnAbout(wxCommandEvent& event);
  95
  96 private:
  97     MyPanel  *m_panel;
  98
  99     // any class wishing to process wxWidgets events must use this macro
 100     DECLARE_EVENT_TABLE()
 101 };
 102
 103 // ----------------------------------------------------------------------------
 104 // constants
 105 // ----------------------------------------------------------------------------
 106
 107 // IDs for the controls and the menu commands
 108 enum
 109 {
 110     // menu items
 111     LED_Quit = wxID_EXIT,
 112
 113     LED_Edit_Increment = wxID_HIGHEST + 1,
 114     LED_Edit_Decrement,
 115     LED_Edit_Small_Increment,
 116     LED_Edit_Small_Decrement,
 117     LED_Edit_SetValue,
 118     LED_Edit_AlignLeft,
 119     LED_Edit_AlignCenter,
 120     LED_Edit_AlignRight,
 121     LED_Edit_DrawFaded,
 122
 123     // it is important for the id corresponding to the "About" command to have
 124     // this standard value as otherwise it won't be handled properly under Mac
 125     // (where it is special and put into the "Apple" menu)
 126     LED_About = wxID_ABOUT
 127 };
 128
 129 // ----------------------------------------------------------------------------
 130 // event tables and other macros for wxWidgets
 131 // ----------------------------------------------------------------------------
 132
 133 // the event tables connect the wxWidgets events with the functions (event
 134 // handlers) which process them. It can be also done at run-time, but for the
 135 // simple menu events like this the static method is much simpler.
 136 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 137     EVT_MENU(LED_Quit,  MyFrame::OnQuit)
 138     EVT_MENU(LED_Edit_Increment, MyFrame::OnIncrement)
 139     EVT_MENU(LED_Edit_Decrement, MyFrame::OnDecrement)
 140     EVT_MENU(LED_Edit_Small_Increment, MyFrame::OnSmallIncrement)
 141     EVT_MENU(LED_Edit_Small_Decrement, MyFrame::OnSmallDecrement)
 142     EVT_MENU(LED_Edit_SetValue, MyFrame::OnSetValue)
 143     EVT_MENU(LED_Edit_AlignLeft, MyFrame::OnAlignLeft)
 144     EVT_MENU(LED_Edit_AlignCenter, MyFrame::OnAlignCenter)
 145     EVT_MENU(LED_Edit_AlignRight, MyFrame::OnAlignRight)
 146     EVT_MENU(LED_Edit_DrawFaded, MyFrame::OnDrawFaded)
 147     EVT_MENU(LED_About, MyFrame::OnAbout)
 148 END_EVENT_TABLE()
 149
 150 // Create a new application object: this macro will allow wxWidgets to create
 151 // the application object during program execution (it's better than using a
 152 // static object for many reasons) and also declares the accessor function
 153 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 154 // not wxApp)
 155 IMPLEMENT_APP(MyApp)
 156
 157 // ============================================================================
 158 // implementation
 159 // ============================================================================
 160
 161 // ----------------------------------------------------------------------------
 162 // the application class
 163 // ----------------------------------------------------------------------------
 164
 165 // 'Main program' equivalent: the program execution "starts" here
 166 bool MyApp::OnInit()
 167 {
 168     // create the main application window
 169     MyFrame *frame = new MyFrame(_T("LED App"),
 170                                  wxDefaultPosition, wxSize(450, 120));
 171
 172     // and show it (the frames, unlike simple controls, are not shown when
 173     // created initially)
 174     frame->Show(true);
 175
 176     // success: wxApp::OnRun() will be called which will enter the main message
 177     // loop and the application will run. If we returned false here, the
 178     // application would exit immediately.
 179     return true;
 180 }
 181
 182 // ----------------------------------------------------------------------------
 183 // main frame
 184 // ----------------------------------------------------------------------------
 185
 186 // frame constructor
 187 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size, long style)
 188        : wxFrame(NULL, wxID_ANY, title, pos, size, style)
 189 {
 190 #if wxUSE_MENUS
 191     // create a menu bar
 192     wxMenu *menuFile = new wxMenu;
 193
 194     // the "About" item should be in the help menu
 195     wxMenu *helpMenu = new wxMenu;
 196     helpMenu->Append(LED_About, _T("&About...\tF1"), _T("Show about dialog"));
 197
 198     menuFile->Append(LED_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
 199
 200     wxMenu *editMenu = new wxMenu;
 201     editMenu->Append(LED_Edit_Increment, _T("&Increment LED (1)\tCtrl-I"));
 202     editMenu->Append(LED_Edit_Small_Increment, _T("&Increment LED (0.01)\tAlt-I"));
 203     editMenu->Append(LED_Edit_Decrement, _T("&Decrement LED (1)\tCtrl-D"));
 204     editMenu->Append(LED_Edit_Small_Decrement, _T("&Decrement LED (0.01)\tAlt-D"));
 205     editMenu->Append(LED_Edit_SetValue, _T("&Set LED Value...\tCtrl-S"));
 206     editMenu->AppendSeparator();
 207     editMenu->AppendRadioItem(LED_Edit_AlignLeft, _T("Align &Left"));
 208     editMenu->AppendRadioItem(LED_Edit_AlignCenter, _T("Align &Center"));
 209     editMenu->AppendRadioItem(LED_Edit_AlignRight, _T("Align &Right"));
 210     editMenu->AppendSeparator();
 211     editMenu->AppendCheckItem(LED_Edit_DrawFaded, _T("Draw &Faded\tCtrl-F"));
 212
 213     editMenu->Check(LED_Edit_DrawFaded, true);
 214
 215     // now append the freshly created menu to the menu bar...
 216     wxMenuBar *menuBar = new wxMenuBar();
 217     menuBar->Append(menuFile, _T("&File"));
 218     menuBar->Append(editMenu, _T("&Edit"));
 219     menuBar->Append(helpMenu, _T("&Help"));
 220
 221     // ... and attach this menu bar to the frame
 222     SetMenuBar(menuBar);
 223 #endif // wxUSE_MENUS
 224
 225     m_panel = new MyPanel(this);
 226 }
 227
 228
 229 // event handlers
 230
 231 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 232 {
 233     // true is to force the frame to close
 234     Close(true);
 235 }
 236
 237 void MyFrame::OnIncrement(wxCommandEvent& WXUNUSED(event))
 238 {
 239     m_panel->OnIncrement();
 240 }
 241
 242 void MyFrame::OnDecrement(wxCommandEvent& WXUNUSED(event))
 243 {
 244     m_panel->OnDecrement();
 245 }
 246
 247 void MyFrame::OnSmallIncrement(wxCommandEvent& WXUNUSED(event))
 248 {
 249     m_panel->OnSmallIncrement();
 250 }
 251
 252 void MyFrame::OnSmallDecrement(wxCommandEvent& WXUNUSED(event))
 253 {
 254     m_panel->OnSmallDecrement();
 255 }
 256
 257 void MyFrame::OnSetValue(wxCommandEvent& WXUNUSED(event))
 258 {
 259     m_panel->OnSetValue();
 260 }
 261
 262 void MyFrame::OnAlignLeft(wxCommandEvent& WXUNUSED(event))
 263 {
 264     m_panel->OnAlignLeft();
 265 }
 266
 267 void MyFrame::OnAlignCenter(wxCommandEvent& WXUNUSED(event))
 268 {
 269     m_panel->OnAlignCenter();
 270 }
 271
 272 void MyFrame::OnAlignRight(wxCommandEvent& WXUNUSED(event))
 273 {
 274     m_panel->OnAlignRight();
 275 }
 276
 277 void MyFrame::OnDrawFaded(wxCommandEvent& WXUNUSED(event))
 278 {
 279     m_panel->OnDrawFaded();
 280 }
 281
 282 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 283 {
 284     wxString msg;
 285     msg.Printf( _T("This is the About dialog of the LED sample.\n")
 286                 _T("Welcome to %s"), wxVERSION_STRING);
 287
 288     wxMessageBox(msg, _T("About LED"), wxOK | wxICON_INFORMATION, this);
 289 }
 290
 291 // --------------------------------------------------------------------------
 292 // MyPanel
 293 // --------------------------------------------------------------------------
 294
 295 MyPanel::MyPanel(wxFrame *frame)
 296                 : wxPanel(frame, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxCLIP_CHILDREN)
 297 {
 298     m_led = new wxLEDNumberCtrl(this, wxID_ANY,
 299                                 wxDefaultPosition, wxDefaultSize,
 300                                 wxLED_ALIGN_LEFT|wxLED_DRAW_FADED|wxFULL_REPAINT_ON_RESIZE);
 301
 302     m_led->SetValue(_T("01.23 7-8-9"));
 303
 304     m_sizer = new wxBoxSizer(wxVERTICAL);
 305     m_sizer->Add(m_led, 1, wxEXPAND|wxALL, 10);
 306     m_sizer->Fit(this);
 307
 308     SetSizer(m_sizer);
 309     SetAutoLayout(true);
 310 }
 311
 312 void MyPanel::OnIncrement()
 313 {
 314     wxString strValue = m_led->GetValue();
 315
 316     double dValue;
 317     strValue.ToDouble(&dValue);
 318     dValue += 1.0;
 319     m_led->SetValue(wxString::Format(_T("%.2f"), dValue));
 320 }
 321
 322 void MyPanel::OnDecrement()
 323 {
 324     wxString strValue = m_led->GetValue();
 325
 326     double dValue;
 327     strValue.ToDouble(&dValue);
 328     dValue -= 1.0;
 329     m_led->SetValue(wxString::Format(_T("%.2f"), dValue));
 330 }
 331
 332 void MyPanel::OnSmallIncrement()
 333 {
 334     wxString strValue = m_led->GetValue();
 335
 336     double dValue;
 337     strValue.ToDouble(&dValue);
 338     dValue += 0.01;
 339     m_led->SetValue(wxString::Format(_T("%.2f"), dValue));
 340 }
 341
 342 void MyPanel::OnSmallDecrement()
 343 {
 344     wxString strValue = m_led->GetValue();
 345
 346     double dValue;
 347     strValue.ToDouble(&dValue);
 348     dValue -= 0.01;
 349     m_led->SetValue(wxString::Format(_T("%.2f"), dValue));
 350 }
 351
 352 void MyPanel::OnSetValue()
 353 {
 354     wxString strValue = m_led->GetValue();
 355
 356     strValue = ::wxGetTextFromUser(_T("Please enter a number for LED display"), _T("Please enter a number"), strValue, this);
 357
 358     if (strValue != _T(""))
 359         m_led->SetValue(strValue);
 360 }
 361
 362 void MyPanel::OnAlignLeft()
 363 {
 364     m_led->SetAlignment(wxLED_ALIGN_LEFT);
 365 }
 366
 367 void MyPanel::OnAlignCenter()
 368 {
 369     m_led->SetAlignment(wxLED_ALIGN_CENTER);
 370 }
 371
 372 void MyPanel::OnAlignRight()
 373 {
 374     m_led->SetAlignment(wxLED_ALIGN_RIGHT);
 375 }
 376
 377 void MyPanel::OnDrawFaded()
 378 {
 379     m_led->SetDrawFaded(!(m_led->GetDrawFaded()));
 380 }