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" wxWindows 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
  37 // ----------------------------------------------------------------------------
  38 // private classes
  39 // ----------------------------------------------------------------------------
  40
  41 class MyPanel : public wxPanel
  42 {
  43 public:
  44     MyPanel(wxFrame *frame);
  45
  46     void OnIncrement();
  47     void OnDecrement();
  48     void OnSetValue();
  49     void OnAlignLeft();
  50     void OnAlignCenter();
  51     void OnAlignRight();
  52     void OnDrawFaded();
  53
  54 private:
  55     wxLEDNumberCtrl    *m_led;
  56 };
  57
  58 // Define a new application type, each program should derive a class from wxApp
  59 class MyApp : public wxApp
  60 {
  61 public:
  62     // override base class virtuals
  63     // ----------------------------
  64
  65     // this one is called on application startup and is a good place for the app
  66     // initialization (doing it here and not in the ctor allows to have an error
  67     // return: if OnInit() returns false, the application terminates)
  68     virtual bool OnInit();
  69 };
  70
  71 // Define a new frame type: this is going to be our main frame
  72 class MyFrame : public wxFrame
  73 {
  74 public:
  75     // ctor(s)
  76     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size,
  77             long style = wxDEFAULT_FRAME_STYLE);
  78
  79     // event handlers (these functions should _not_ be virtual)
  80     void OnQuit(wxCommandEvent& event);
  81     void OnIncrement(wxCommandEvent& event);
  82     void OnDecrement(wxCommandEvent& event);
  83     void OnSetValue(wxCommandEvent& event);
  84     void OnAlignLeft(wxCommandEvent& event);
  85     void OnAlignCenter(wxCommandEvent& event);
  86     void OnAlignRight(wxCommandEvent& event);
  87     void OnDrawFaded(wxCommandEvent& event);
  88     void OnAbout(wxCommandEvent& event);
  89
  90 private:
  91     MyPanel  *m_panel;
  92
  93     // any class wishing to process wxWindows events must use this macro
  94     DECLARE_EVENT_TABLE()
  95 };
  96
  97 // ----------------------------------------------------------------------------
  98 // constants
  99 // ----------------------------------------------------------------------------
 100
 101 // IDs for the controls and the menu commands
 102 enum
 103 {
 104     // menu items
 105     LED_Quit = 1,
 106
 107     LED_Edit_Increment,
 108     LED_Edit_Decrement,
 109     LED_Edit_SetValue,
 110     LED_Edit_AlignLeft,
 111     LED_Edit_AlignCenter,
 112     LED_Edit_AlignRight,
 113     LED_Edit_DrawFaded,
 114
 115     // it is important for the id corresponding to the "About" command to have
 116     // this standard value as otherwise it won't be handled properly under Mac
 117     // (where it is special and put into the "Apple" menu)
 118     LED_About = wxID_ABOUT,
 119
 120     MY_PANEL,
 121     MY_LED
 122 };
 123
 124 // ----------------------------------------------------------------------------
 125 // event tables and other macros for wxWindows
 126 // ----------------------------------------------------------------------------
 127
 128 // the event tables connect the wxWindows events with the functions (event
 129 // handlers) which process them. It can be also done at run-time, but for the
 130 // simple menu events like this the static method is much simpler.
 131 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 132     EVT_MENU(LED_Quit,  MyFrame::OnQuit)
 133     EVT_MENU(LED_Edit_Increment, MyFrame::OnIncrement)
 134     EVT_MENU(LED_Edit_Decrement, MyFrame::OnDecrement)
 135     EVT_MENU(LED_Edit_SetValue, MyFrame::OnSetValue)
 136     EVT_MENU(LED_Edit_AlignLeft, MyFrame::OnAlignLeft)
 137     EVT_MENU(LED_Edit_AlignCenter, MyFrame::OnAlignCenter)
 138     EVT_MENU(LED_Edit_AlignRight, MyFrame::OnAlignRight)
 139     EVT_MENU(LED_Edit_DrawFaded, MyFrame::OnDrawFaded)
 140     EVT_MENU(LED_About, MyFrame::OnAbout)
 141 END_EVENT_TABLE()
 142
 143 // Create a new application object: this macro will allow wxWindows to create
 144 // the application object during program execution (it's better than using a
 145 // static object for many reasons) and also declares the accessor function
 146 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 147 // not wxApp)
 148 IMPLEMENT_APP(MyApp)
 149
 150 // ============================================================================
 151 // implementation
 152 // ============================================================================
 153
 154 // ----------------------------------------------------------------------------
 155 // the application class
 156 // ----------------------------------------------------------------------------
 157
 158 // 'Main program' equivalent: the program execution "starts" here
 159 bool MyApp::OnInit()
 160 {
 161     // create the main application window
 162     MyFrame *frame = new MyFrame(_T("LED App"),
 163                                  wxPoint(50, 50), wxSize(450, 340));
 164
 165     // and show it (the frames, unlike simple controls, are not shown when
 166     // created initially)
 167     frame->Show(TRUE);
 168
 169     // success: wxApp::OnRun() will be called which will enter the main message
 170     // loop and the application will run. If we returned FALSE here, the
 171     // application would exit immediately.
 172     return TRUE;
 173 }
 174
 175 // ----------------------------------------------------------------------------
 176 // main frame
 177 // ----------------------------------------------------------------------------
 178
 179 // frame constructor
 180 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size, long style)
 181        : wxFrame(NULL, -1, title, pos, size, style)
 182 {
 183 #if wxUSE_MENUS
 184     // create a menu bar
 185     wxMenu *menuFile = new wxMenu;
 186
 187     // the "About" item should be in the help menu
 188     wxMenu *helpMenu = new wxMenu;
 189     helpMenu->Append(LED_About, _T("&About...\tF1"), _T("Show about dialog"));
 190
 191     menuFile->Append(LED_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
 192
 193     wxMenu *editMenu = new wxMenu;
 194     editMenu->Append(LED_Edit_Increment, _T("&Increment LED\tCtrl-I"));
 195     editMenu->Append(LED_Edit_Decrement, _T("&Decrement LED\tCtrl-D"));
 196     editMenu->Append(LED_Edit_SetValue, _T("&Set LED Value...\tCtrl-S"));
 197     editMenu->AppendSeparator();
 198     editMenu->AppendRadioItem(LED_Edit_AlignLeft, _T("Align &Left"));
 199     editMenu->AppendRadioItem(LED_Edit_AlignCenter, _T("Align &Center"));
 200     editMenu->AppendRadioItem(LED_Edit_AlignRight, _T("Align &Right"));
 201     editMenu->AppendSeparator();
 202     editMenu->AppendCheckItem(LED_Edit_DrawFaded, _T("Draw &Faded\tCtrl-F"));
 203
 204     editMenu->Check(LED_Edit_DrawFaded, TRUE);
 205
 206     // now append the freshly created menu to the menu bar...
 207     wxMenuBar *menuBar = new wxMenuBar();
 208     menuBar->Append(menuFile, _T("&File"));
 209     menuBar->Append(editMenu, _T("&Edit"));
 210     menuBar->Append(helpMenu, _T("&Help"));
 211
 212     // ... and attach this menu bar to the frame
 213     SetMenuBar(menuBar);
 214 #endif // wxUSE_MENUS
 215
 216     m_panel = new MyPanel(this);
 217 }
 218
 219
 220 // event handlers
 221
 222 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 223 {
 224     // TRUE is to force the frame to close
 225     Close(TRUE);
 226 }
 227
 228 void MyFrame::OnIncrement(wxCommandEvent& event)
 229 {
 230     m_panel->OnIncrement();
 231 }
 232
 233 void MyFrame::OnDecrement(wxCommandEvent& event)
 234 {
 235     m_panel->OnDecrement();
 236 }
 237
 238 void MyFrame::OnSetValue(wxCommandEvent& event)
 239 {
 240     m_panel->OnSetValue();
 241 }
 242
 243 void MyFrame::OnAlignLeft(wxCommandEvent& event)
 244 {
 245     m_panel->OnAlignLeft();
 246 }
 247
 248 void MyFrame::OnAlignCenter(wxCommandEvent& event)
 249 {
 250     m_panel->OnAlignCenter();
 251 }
 252
 253 void MyFrame::OnAlignRight(wxCommandEvent& event)
 254 {
 255     m_panel->OnAlignRight();
 256 }
 257
 258 void MyFrame::OnDrawFaded(wxCommandEvent& event)
 259 {
 260     m_panel->OnDrawFaded();
 261 }
 262
 263 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 264 {
 265     wxString msg;
 266     msg.Printf( _T("This is the About dialog of the LED sample.\n")
 267                 _T("Welcome to %s"), wxVERSION_STRING);
 268
 269     wxMessageBox(msg, _T("About LED"), wxOK | wxICON_INFORMATION, this);
 270 }
 271
 272 // --------------------------------------------------------------------------
 273 // MyPanel
 274 // --------------------------------------------------------------------------
 275
 276 MyPanel::MyPanel(wxFrame *frame)
 277                 : wxPanel(frame, MY_PANEL)
 278 {
 279     m_led = new wxLEDNumberCtrl(this, MY_LED,
 280                                 wxPoint(20, 20), wxSize(300, 200),
 281                                 wxLED_ALIGN_LEFT | wxLED_DRAW_FADED);
 282
 283     m_led->SetValue(_T("50"));
 284 }
 285
 286 void MyPanel::OnIncrement()
 287 {
 288     wxString strValue = m_led->GetValue();
 289     if ( strValue == _T("99") )
 290         return;
 291
 292     long lValue;
 293     strValue.ToLong(&lValue);
 294     ++lValue;
 295     m_led->SetValue(wxString::Format(_T("%ld"), lValue));
 296 }
 297
 298 void MyPanel::OnDecrement()
 299 {
 300     wxString strValue = m_led->GetValue();
 301
 302     long lValue;
 303     strValue.ToLong(&lValue);
 304     if (lValue == 0)
 305         return;
 306
 307     --lValue;
 308     m_led->SetValue(wxString::Format(_T("%ld"), lValue));
 309 }
 310
 311 void MyPanel::OnSetValue()
 312 {
 313     wxString strValue = m_led->GetValue();
 314
 315     long lValue;
 316     strValue.ToLong(&lValue);
 317     lValue = ::wxGetNumberFromUser(_T("Please enter a number between 0 and 99"), _T(""), _T("Please enter a number"), lValue, 0, 99, this);
 318
 319     if (lValue != -1)
 320         m_led->SetValue(wxString::Format(_T("%ld"), lValue));
 321 }
 322
 323 void MyPanel::OnAlignLeft()
 324 {
 325     m_led->SetAlignment(wxLED_ALIGN_LEFT);
 326 }
 327
 328 void MyPanel::OnAlignCenter()
 329 {
 330     m_led->SetAlignment(wxLED_ALIGN_CENTER);
 331 }
 332
 333 void MyPanel::OnAlignRight()
 334 {
 335     m_led->SetAlignment(wxLED_ALIGN_RIGHT);
 336 }
 337
 338 void MyPanel::OnDrawFaded()
 339 {
 340     m_led->SetDrawFaded(!(m_led->GetDrawFaded()));
 341 }