src/palmos/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/palmos/app.cpp
   3 // Purpose:     wxApp
   4 // Author:      William Osborne - minimal working wxPalmOS port
   5 // Modified by:
   6 // Created:     10/08/04
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) William Osborne
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #if defined(__BORLANDC__)
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/dynarray.h"
  29     #include "wx/frame.h"
  30     #include "wx/app.h"
  31     #include "wx/utils.h"
  32     #include "wx/gdicmn.h"
  33     #include "wx/pen.h"
  34     #include "wx/brush.h"
  35     #include "wx/cursor.h"
  36     #include "wx/icon.h"
  37     #include "wx/palette.h"
  38     #include "wx/dc.h"
  39     #include "wx/dialog.h"
  40     #include "wx/msgdlg.h"
  41     #include "wx/intl.h"
  42     #include "wx/wxchar.h"
  43     #include "wx/log.h"
  44     #include "wx/module.h"
  45 #endif
  46
  47 #include "wx/apptrait.h"
  48 #include "wx/filename.h"
  49 #include "wx/dynlib.h"
  50
  51 #if wxUSE_TOOLTIPS
  52     #include "wx/tooltip.h"
  53 #endif // wxUSE_TOOLTIPS
  54
  55 // We don't support OLE
  56 #undef wxUSE_OLE
  57 #define  wxUSE_OLE 0
  58
  59 #include <string.h>
  60 #include <ctype.h>
  61
  62 // ---------------------------------------------------------------------------
  63 // global variables
  64 // ---------------------------------------------------------------------------
  65
  66 // NB: all "NoRedraw" classes must have the same names as the "normal" classes
  67 //     with NR suffix - wxWindow::MSWCreate() supposes this
  68 const wxChar *wxCanvasClassName        = wxT("wxWindowClass");
  69 const wxChar *wxCanvasClassNameNR      = wxT("wxWindowClassNR");
  70 const wxChar *wxMDIFrameClassName      = wxT("wxMDIFrameClass");
  71 const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
  72 const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
  73 const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
  74
  75 // ----------------------------------------------------------------------------
  76 // private functions
  77 // ----------------------------------------------------------------------------
  78
  79 // ===========================================================================
  80 // wxGUIAppTraits implementation
  81 // ===========================================================================
  82
  83 // private class which we use to pass parameters from BeforeChildWaitLoop() to
  84 // AfterChildWaitLoop()
  85 struct ChildWaitLoopData
  86 {
  87     ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_)
  88     {
  89         wd = wd_;
  90         winActive = winActive_;
  91     }
  92
  93     wxWindowDisabler *wd;
  94     wxWindow *winActive;
  95 };
  96
  97 void *wxGUIAppTraits::BeforeChildWaitLoop()
  98 {
  99     return NULL;
 100 }
 101
 102 void wxGUIAppTraits::AlwaysYield()
 103 {
 104     wxYield();
 105 }
 106
 107 void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig)
 108 {
 109 }
 110
 111 bool wxGUIAppTraits::DoMessageFromThreadWait()
 112 {
 113     return false;
 114 }
 115
 116 wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const
 117 {
 118     // TODO: how to get PalmOS GUI system version ?
 119     return wxPORT_PALMOS;
 120 }
 121
 122 wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
 123 {
 124     return new wxPalmOSTimerImpl(timer);
 125 };
 126 // ===========================================================================
 127 // wxApp implementation
 128 // ===========================================================================
 129
 130 int wxApp::m_nCmdShow = 0;
 131
 132 // ---------------------------------------------------------------------------
 133 // wxWin macros
 134 // ---------------------------------------------------------------------------
 135
 136 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 137
 138 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 139     EVT_IDLE(wxApp::OnIdle)
 140     EVT_END_SESSION(wxApp::OnEndSession)
 141     EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 142 END_EVENT_TABLE()
 143
 144 // class to ensure that wxAppBase::CleanUp() is called if our Initialize()
 145 // fails
 146 class wxCallBaseCleanup
 147 {
 148 public:
 149     wxCallBaseCleanup(wxApp *app) : m_app(app) { }
 150     ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }
 151
 152     void Dismiss() { m_app = NULL; }
 153
 154 private:
 155     wxApp *m_app;
 156 };
 157
 158 //// Initialize
 159 bool wxApp::Initialize(int& argc, wxChar **argv)
 160 {
 161     if ( !wxAppBase::Initialize(argc, argv) )
 162         return false;
 163
 164     // ensure that base cleanup is done if we return too early
 165     wxCallBaseCleanup callBaseCleanup(this);
 166
 167     wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
 168
 169     callBaseCleanup.Dismiss();
 170
 171     return true;
 172 }
 173
 174 // ---------------------------------------------------------------------------
 175 // RegisterWindowClasses
 176 // ---------------------------------------------------------------------------
 177
 178 // TODO we should only register classes really used by the app. For this it
 179 //      would be enough to just delay the class registration until an attempt
 180 //      to create a window of this class is made.
 181 bool wxApp::RegisterWindowClasses()
 182 {
 183     return true;
 184 }
 185
 186 // ---------------------------------------------------------------------------
 187 // UnregisterWindowClasses
 188 // ---------------------------------------------------------------------------
 189
 190 bool wxApp::UnregisterWindowClasses()
 191 {
 192     bool retval = true;
 193     return retval;
 194 }
 195
 196 void wxApp::CleanUp()
 197 {
 198     // all objects pending for deletion must be deleted first, otherwise we
 199     // would crash when they use wxWinHandleHash (and UnregisterWindowClasses()
 200     // call wouldn't succeed as long as any windows still exist), so call the
 201     // base class method first and only then do our clean up
 202     wxAppBase::CleanUp();
 203
 204     // for an EXE the classes are unregistered when it terminates but DLL may
 205     // be loaded several times (load/unload/load) into the same process in
 206     // which case the registration will fail after the first time if we don't
 207     // unregister the classes now
 208     UnregisterWindowClasses();
 209
 210     delete wxWinHandleHash;
 211     wxWinHandleHash = NULL;
 212 }
 213
 214 // ----------------------------------------------------------------------------
 215 // wxApp ctor/dtor
 216 // ----------------------------------------------------------------------------
 217
 218 wxApp::wxApp()
 219 {
 220     m_printMode = wxPRINT_WINDOWS;
 221 }
 222
 223 wxApp::~wxApp()
 224 {
 225     // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they
 226     // don't come from main(), so we have to free them
 227
 228     while ( argc )
 229     {
 230         // m_argv elements were allocated by wxStrdup()
 231         free(argv[--argc]);
 232     }
 233
 234     // but m_argv itself -- using new[]
 235     delete [] argv;
 236 }
 237
 238 // ----------------------------------------------------------------------------
 239 // wxApp idle handling
 240 // ----------------------------------------------------------------------------
 241
 242 void wxApp::OnIdle(wxIdleEvent& event)
 243 {
 244     wxAppBase::OnIdle(event);
 245 }
 246
 247 void wxApp::WakeUpIdle()
 248 {
 249 }
 250
 251 // ----------------------------------------------------------------------------
 252 // other wxApp event hanlders
 253 // ----------------------------------------------------------------------------
 254
 255 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
 256 {
 257     if (GetTopWindow())
 258         GetTopWindow()->Close(true);
 259 }
 260
 261 // Default behaviour: close the application with prompts. The
 262 // user can veto the close, and therefore the end session.
 263 void wxApp::OnQueryEndSession(wxCloseEvent& event)
 264 {
 265     if (GetTopWindow())
 266     {
 267         if (!GetTopWindow()->Close(!event.CanVeto()))
 268             event.Veto(true);
 269     }
 270 }
 271
 272 // ----------------------------------------------------------------------------
 273 // miscellaneous
 274 // ----------------------------------------------------------------------------
 275
 276 /* static */
 277 int wxApp::GetComCtl32Version()
 278 {
 279     return 0;
 280 }
 281
 282 // Yield to incoming messages
 283
 284 bool wxApp::Yield(bool onlyIfNeeded)
 285 {
 286     return true;
 287 }
 288
 289 #if wxUSE_EXCEPTIONS
 290
 291 // ----------------------------------------------------------------------------
 292 // exception handling
 293 // ----------------------------------------------------------------------------
 294
 295 bool wxApp::OnExceptionInMainLoop()
 296 {
 297     return true;
 298 }
 299
 300 #endif // wxUSE_EXCEPTIONS