samples/thread/test.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        test.cpp
   3 // Purpose:     wxWindows thread sample
   4 // Author:      Julian Smart(minimal)/Guilhem Lavaux(thread test)
   5 // Modified by:
   6 // Created:     06/16/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart, Markus Holzem, Guilhem Lavaux
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "test.cpp"
  14 #pragma interface "test.cpp"
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx/wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21 #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25 #include "wx/wx.h"
  26 #endif
  27
  28 #include "wx/thread.h"
  29 #include "wx/dynarray.h"
  30
  31 // Define a new application type
  32 class MyApp: public wxApp
  33 {
  34  public:
  35     bool OnInit(void);
  36 };
  37
  38 WX_DEFINE_ARRAY(wxThread *,wxArrayThread);
  39
  40 // Define a new frame type
  41 class MyFrame: public wxFrame
  42 {
  43  public:
  44     MyFrame(wxFrame *frame, char *title, int x, int y, int w, int h);
  45
  46  public:
  47     void OnQuit(wxCommandEvent& event);
  48     void OnAbout(wxCommandEvent& event);
  49     void OnStartThread(wxCommandEvent& event);
  50     void OnStopThread(wxCommandEvent& event);
  51     void OnPauseThread(wxCommandEvent& event);
  52     bool OnClose(void) { return TRUE; }
  53
  54  public:
  55    wxArrayThread m_threads;
  56    wxTextCtrl *m_txtctrl;
  57
  58    DECLARE_EVENT_TABLE()
  59 };
  60
  61 class MyThread: public wxThread
  62 {
  63  public:
  64     MyThread(MyFrame *frame);
  65
  66     void *Entry();
  67  public:
  68     MyFrame *m_frame;
  69 };
  70
  71 MyThread::MyThread(MyFrame *frame)
  72   : wxThread()
  73 {
  74   m_frame = frame;
  75 }
  76
  77 void *MyThread::Entry()
  78 {
  79   wxString text;
  80
  81   text.Printf("Thread 0x%x: Hello !\n", GetID());
  82   DeferDestroy(TRUE);
  83
  84   while (1) {
  85     TestDestroy();
  86     m_frame->m_txtctrl->WriteText(text);
  87     wxSleep(1);
  88   }
  89
  90   return NULL;
  91 }
  92
  93 // ID for the menu commands
  94 #define TEST_QUIT         1
  95 #define TEST_TEXT         101
  96 #define TEST_ABOUT        102
  97 #define TEST_START_THREAD 103
  98 #define TEST_STOP_THREAD  104
  99 #define TEST_PAUSE_THREAD 105
 100
 101 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 102         EVT_MENU(TEST_QUIT, MyFrame::OnQuit)
 103         EVT_MENU(TEST_ABOUT, MyFrame::OnAbout)
 104         EVT_MENU(TEST_START_THREAD, MyFrame::OnStartThread)
 105         EVT_MENU(TEST_STOP_THREAD, MyFrame::OnStopThread)
 106         EVT_MENU(TEST_PAUSE_THREAD, MyFrame::OnPauseThread)
 107 END_EVENT_TABLE()
 108
 109 // Create a new application object
 110 IMPLEMENT_APP   (MyApp)
 111
 112 // `Main program' equivalent, creating windows and returning main app frame
 113 bool MyApp::OnInit(void)
 114 {
 115   // Create the main frame window
 116   MyFrame *frame = new MyFrame(NULL, "Minimal wxWindows App", 50, 50, 450, 340);
 117
 118   // Give it an icon
 119 #ifdef __WXMSW__
 120   frame->SetIcon(wxIcon("AIAI"));
 121 #endif
 122 #ifdef __X__
 123   frame->SetIcon(wxIcon("aiai.xbm"));
 124 #endif
 125
 126   // Make a menubar
 127   wxMenu *file_menu = new wxMenu;
 128
 129   file_menu->Append(TEST_ABOUT, "&About");
 130   file_menu->Append(TEST_QUIT, "E&xit");
 131   wxMenuBar *menu_bar = new wxMenuBar;
 132   menu_bar->Append(file_menu, "&File");
 133
 134   wxMenu *thread_menu = new wxMenu;
 135   thread_menu->Append(TEST_START_THREAD, "Start a new thread");
 136   thread_menu->Append(TEST_STOP_THREAD, "Stop a running thread");
 137   thread_menu->Append(TEST_PAUSE_THREAD, "Pause a running thread");
 138   menu_bar->Append(thread_menu, "Thread");
 139   frame->SetMenuBar(menu_bar);
 140
 141   // Make a panel with a message
 142   wxPanel *panel = new wxPanel(frame, -1, wxPoint(0, 0), wxSize(400, 200), wxTAB_TRAVERSAL);
 143
 144   frame->m_txtctrl = new wxTextCtrl(panel, -1, "", wxPoint(10, 10), wxSize(390, 190),
 145                            wxTE_MULTILINE);
 146
 147   // Show the frame
 148   frame->Show(TRUE);
 149
 150   SetTopWindow(frame);
 151
 152   return TRUE;
 153 }
 154
 155 // My frame constructor
 156 MyFrame::MyFrame(wxFrame *frame, char *title, int x, int y, int w, int h):
 157   wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
 158 {}
 159
 160 void MyFrame::OnStartThread(wxCommandEvent& WXUNUSED(event) )
 161 {
 162   MyThread *thread = new MyThread(this);
 163
 164   thread->Create();
 165
 166   m_threads.Add(thread);
 167 }
 168
 169 void MyFrame::OnStopThread(wxCommandEvent& WXUNUSED(event) )
 170 {
 171   int no_thrd = m_threads.Count()-1;
 172
 173   if (no_thrd < 0)
 174     return;
 175
 176   delete (m_threads[no_thrd]);
 177   m_threads.Remove(no_thrd);
 178 }
 179
 180 void MyFrame::OnPauseThread(wxCommandEvent& WXUNUSED(event) )
 181 {}
 182
 183 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
 184 {
 185   uint i;
 186   for (i=0;i<m_threads.Count();i++)
 187     delete (m_threads[i]);
 188   Close(TRUE);
 189 }
 190
 191 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 192 {
 193   wxMessageDialog dialog(this, "wxThread sample (based on minimal)\nJulian Smart and Guilhem Lavaux",
 194         "About wxThread sample", wxYES_NO|wxCANCEL);
 195
 196   dialog.ShowModal();
 197 }
 198
 199