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 "../../../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 OnSetValue();
  50     void OnAlignLeft();
  51     void OnAlignCenter();
  52     void OnAlignRight();
  53     void OnDrawFaded();
  54
  55 private:
  56     wxLEDNumberCtrl    *m_led;
  57 };
  58
  59 // Define a new application type, each program should derive a class from wxApp
  60 class MyApp : public wxApp
  61 {
  62 public:
  63     // override base class virtuals
  64     // ----------------------------
  65
  66     // this one is called on application startup and is a good place for the app
  67     // initialization (doing it here and not in the ctor allows to have an error
  68     // return: if OnInit() returns false, the application terminates)
  69     virtual bool OnInit();
  70 };
  71
  72 // Define a new frame type: this is going to be our main frame
  73 class MyFrame : public wxFrame
  74 {
  75 public:
  76     // ctor(s)
  77     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size,
  78             long style = wxDEFAULT_FRAME_STYLE);
  79
  80     // event handlers (these functions should _not_ be virtual)
  81     void OnQuit(wxCommandEvent& event);
  82     void OnIncrement(wxCommandEvent& event);
  83     void OnDecrement(wxCommandEvent& event);
  84     void OnSetValue(wxCommandEvent& event);
  85     void OnAlignLeft(wxCommandEvent& event);
  86     void OnAlignCenter(wxCommandEvent& event);
  87     void OnAlignRight(wxCommandEvent& event);
  88     void OnDrawFaded(wxCommandEvent& event);
  89     void OnAbout(wxCommandEvent& event);
  90
  91 private:
  92     MyPanel  *m_panel;
  93
  94     // any class wishing to process wxWidgets events must use this macro
  95     DECLARE_EVENT_TABLE()
  96 };
  97
  98 // ----------------------------------------------------------------------------
  99 // constants
 100 // ----------------------------------------------------------------------------
 101
 102 // IDs for the controls and the menu commands
 103 enum
 104 {
 105     // menu items
 106     LED_Quit = 1,
 107
 108     LED_Edit_Increment,
 109     LED_Edit_Decrement,
 110     LED_Edit_SetValue,
 111     LED_Edit_AlignLeft,
 112     LED_Edit_AlignCenter,
 113     LED_Edit_AlignRight,
 114     LED_Edit_DrawFaded,
 115
 116     // it is important for the id corresponding to the "About" command to have
 117     // this standard value as otherwise it won't be handled properly under Mac
 118     // (where it is special and put into the "Apple" menu)
 119     LED_About = wxID_ABOUT,
 120
 121     MY_PANEL,
 122     MY_LED
 123 };
 124
 125 // ----------------------------------------------------------------------------
 126 // event tables and other macros for wxWidgets
 127 // ----------------------------------------------------------------------------
 128
 129 // the event tables connect the wxWidgets events with the functions (event
 130 // handlers) which process them. It can be also done at run-time, but for the
 131 // simple menu events like this the static method is much simpler.
 132 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 133     EVT_MENU(LED_Quit,  MyFrame::OnQuit)
 134     EVT_MENU(LED_Edit_Increment, MyFrame::OnIncrement)
 135     EVT_MENU(LED_Edit_Decrement, MyFrame::OnDecrement)
 136     EVT_MENU(LED_Edit_SetValue, MyFrame::OnSetValue)
 137     EVT_MENU(LED_Edit_AlignLeft, MyFrame::OnAlignLeft)
 138     EVT_MENU(LED_Edit_AlignCenter, MyFrame::OnAlignCenter)
 139     EVT_MENU(LED_Edit_AlignRight, MyFrame::OnAlignRight)
 140     EVT_MENU(LED_Edit_DrawFaded, MyFrame::OnDrawFaded)
 141     EVT_MENU(LED_About, MyFrame::OnAbout)
 142 END_EVENT_TABLE()
 143
 144 // Create a new application object: this macro will allow wxWidgets to create
 145 // the application object during program execution (it's better than using a
 146 // static object for many reasons) and also declares the accessor function
 147 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 148 // not wxApp)
 149 IMPLEMENT_APP(MyApp)
 150
 151 // ============================================================================
 152 // implementation
 153 // ============================================================================
 154
 155 // ----------------------------------------------------------------------------
 156 // the application class
 157 // ----------------------------------------------------------------------------
 158
 159 // 'Main program' equivalent: the program execution "starts" here
 160 bool MyApp::OnInit()
 161 {
 162     // create the main application window
 163     MyFrame *frame = new MyFrame(_T("LED App"),
 164                                  wxPoint(50, 50), wxSize(450, 340));
 165
 166     // and show it (the frames, unlike simple controls, are not shown when
 167     // created initially)
 168     frame->Show(TRUE);
 169
 170     // success: wxApp::OnRun() will be called which will enter the main message
 171     // loop and the application will run. If we returned FALSE here, the
 172     // application would exit immediately.
 173     return TRUE;
 174 }
 175
 176 // ----------------------------------------------------------------------------
 177 // main frame
 178 // ----------------------------------------------------------------------------
 179
 180 // frame constructor
 181 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size, long style)
 182        : wxFrame(NULL, -1, title, pos, size, style)
 183 {
 184 #if wxUSE_MENUS
 185     // create a menu bar
 186     wxMenu *menuFile = new wxMenu;
 187
 188     // the "About" item should be in the help menu
 189     wxMenu *helpMenu = new wxMenu;
 190     helpMenu->Append(LED_About, _T("&About...\tF1"), _T("Show about dialog"));
 191
 192     menuFile->Append(LED_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
 193
 194     wxMenu *editMenu = new wxMenu;
 195     editMenu->Append(LED_Edit_Increment, _T("&Increment LED\tCtrl-I"));
 196     editMenu->Append(LED_Edit_Decrement, _T("&Decrement LED\tCtrl-D"));
 197     editMenu->Append(LED_Edit_SetValue, _T("&Set LED Value...\tCtrl-S"));
 198     editMenu->AppendSeparator();
 199     editMenu->AppendRadioItem(LED_Edit_AlignLeft, _T("Align &Left"));
 200     editMenu->AppendRadioItem(LED_Edit_AlignCenter, _T("Align &Center"));
 201     editMenu->AppendRadioItem(LED_Edit_AlignRight, _T("Align &Right"));
 202     editMenu->AppendSeparator();
 203     editMenu->AppendCheckItem(LED_Edit_DrawFaded, _T("Draw &Faded\tCtrl-F"));
 204
 205     editMenu->Check(LED_Edit_DrawFaded, TRUE);
 206
 207     // now append the freshly created menu to the menu bar...
 208     wxMenuBar *menuBar = new wxMenuBar();
 209     menuBar->Append(menuFile, _T("&File"));
 210     menuBar->Append(editMenu, _T("&Edit"));
 211     menuBar->Append(helpMenu, _T("&Help"));
 212
 213     // ... and attach this menu bar to the frame
 214     SetMenuBar(menuBar);
 215 #endif // wxUSE_MENUS
 216
 217     m_panel = new MyPanel(this);
 218 }
 219
 220
 221 // event handlers
 222
 223 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 224 {
 225     // TRUE is to force the frame to close
 226     Close(TRUE);
 227 }
 228
 229 void MyFrame::OnIncrement(wxCommandEvent& WXUNUSED(event))
 230 {
 231     m_panel->OnIncrement();
 232 }
 233
 234 void MyFrame::OnDecrement(wxCommandEvent& WXUNUSED(event))
 235 {
 236     m_panel->OnDecrement();
 237 }
 238
 239 void MyFrame::OnSetValue(wxCommandEvent& WXUNUSED(event))
 240 {
 241     m_panel->OnSetValue();
 242 }
 243
 244 void MyFrame::OnAlignLeft(wxCommandEvent& WXUNUSED(event))
 245 {
 246     m_panel->OnAlignLeft();
 247 }
 248
 249 void MyFrame::OnAlignCenter(wxCommandEvent& WXUNUSED(event))
 250 {
 251     m_panel->OnAlignCenter();
 252 }
 253
 254 void MyFrame::OnAlignRight(wxCommandEvent& WXUNUSED(event))
 255 {
 256     m_panel->OnAlignRight();
 257 }
 258
 259 void MyFrame::OnDrawFaded(wxCommandEvent& WXUNUSED(event))
 260 {
 261     m_panel->OnDrawFaded();
 262 }
 263
 264 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 265 {
 266     wxString msg;
 267     msg.Printf( _T("This is the About dialog of the LED sample.\n")
 268                 _T("Welcome to %s"), wxVERSION_STRING);
 269
 270     wxMessageBox(msg, _T("About LED"), wxOK | wxICON_INFORMATION, this);
 271 }
 272
 273 // --------------------------------------------------------------------------
 274 // MyPanel
 275 // --------------------------------------------------------------------------
 276
 277 MyPanel::MyPanel(wxFrame *frame)
 278                 : wxPanel(frame, MY_PANEL)
 279 {
 280     m_led = new wxLEDNumberCtrl(this, MY_LED,
 281                                 wxPoint(20, 20), wxSize(300, 200),
 282                                 wxLED_ALIGN_LEFT | wxLED_DRAW_FADED);
 283
 284     m_led->SetValue(_T("50"));
 285 }
 286
 287 void MyPanel::OnIncrement()
 288 {
 289     wxString strValue = m_led->GetValue();
 290     if ( strValue == _T("99") )
 291         return;
 292
 293     long lValue;
 294     strValue.ToLong(&lValue);
 295     ++lValue;
 296     m_led->SetValue(wxString::Format(_T("%ld"), lValue));
 297 }
 298
 299 void MyPanel::OnDecrement()
 300 {
 301     wxString strValue = m_led->GetValue();
 302
 303     long lValue;
 304     strValue.ToLong(&lValue);
 305     if (lValue == 0)
 306         return;
 307
 308     --lValue;
 309     m_led->SetValue(wxString::Format(_T("%ld"), lValue));
 310 }
 311
 312 void MyPanel::OnSetValue()
 313 {
 314     wxString strValue = m_led->GetValue();
 315
 316     long lValue;
 317     strValue.ToLong(&lValue);
 318     lValue = ::wxGetNumberFromUser(_T("Please enter a number between 0 and 99"), _T(""), _T("Please enter a number"), lValue, 0, 99, this);
 319
 320     if (lValue != -1)
 321         m_led->SetValue(wxString::Format(_T("%ld"), lValue));
 322 }
 323
 324 void MyPanel::OnAlignLeft()
 325 {
 326     m_led->SetAlignment(wxLED_ALIGN_LEFT);
 327 }
 328
 329 void MyPanel::OnAlignCenter()
 330 {
 331     m_led->SetAlignment(wxLED_ALIGN_CENTER);
 332 }
 333
 334 void MyPanel::OnAlignRight()
 335 {
 336     m_led->SetAlignment(wxLED_ALIGN_RIGHT);
 337 }
 338
 339 void MyPanel::OnDrawFaded()
 340 {
 341     m_led->SetDrawFaded(!(m_led->GetDrawFaded()));
 342 }