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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "app.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #if defined(__BORLANDC__)
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/frame.h"
  33     #include "wx/app.h"
  34     #include "wx/utils.h"
  35     #include "wx/gdicmn.h"
  36     #include "wx/pen.h"
  37     #include "wx/brush.h"
  38     #include "wx/cursor.h"
  39     #include "wx/icon.h"
  40     #include "wx/palette.h"
  41     #include "wx/dc.h"
  42     #include "wx/dialog.h"
  43     #include "wx/msgdlg.h"
  44     #include "wx/intl.h"
  45     #include "wx/dynarray.h"
  46     #include "wx/wxchar.h"
  47     #include "wx/icon.h"
  48     #include "wx/log.h"
  49 #endif
  50
  51 #include "wx/apptrait.h"
  52 #include "wx/filename.h"
  53 #include "wx/module.h"
  54 #include "wx/dynlib.h"
  55
  56 #if wxUSE_TOOLTIPS
  57     #include "wx/tooltip.h"
  58 #endif // wxUSE_TOOLTIPS
  59
  60 // We don't support OLE
  61 #undef wxUSE_OLE
  62 #define  wxUSE_OLE 0
  63
  64 #include <string.h>
  65 #include <ctype.h>
  66
  67 // ---------------------------------------------------------------------------
  68 // global variables
  69 // ---------------------------------------------------------------------------
  70
  71 extern wxList WXDLLEXPORT wxPendingDelete;
  72
  73 // NB: all "NoRedraw" classes must have the same names as the "normal" classes
  74 //     with NR suffix - wxWindow::MSWCreate() supposes this
  75 const wxChar *wxCanvasClassName        = wxT("wxWindowClass");
  76 const wxChar *wxCanvasClassNameNR      = wxT("wxWindowClassNR");
  77 const wxChar *wxMDIFrameClassName      = wxT("wxMDIFrameClass");
  78 const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
  79 const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
  80 const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
  81
  82 // ----------------------------------------------------------------------------
  83 // private functions
  84 // ----------------------------------------------------------------------------
  85
  86 // ===========================================================================
  87 // wxGUIAppTraits implementation
  88 // ===========================================================================
  89
  90 // private class which we use to pass parameters from BeforeChildWaitLoop() to
  91 // AfterChildWaitLoop()
  92 struct ChildWaitLoopData
  93 {
  94     ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_)
  95     {
  96         wd = wd_;
  97         winActive = winActive_;
  98     }
  99
 100     wxWindowDisabler *wd;
 101     wxWindow *winActive;
 102 };
 103
 104 void *wxGUIAppTraits::BeforeChildWaitLoop()
 105 {
 106     return NULL;
 107 }
 108
 109 void wxGUIAppTraits::AlwaysYield()
 110 {
 111     wxYield();
 112 }
 113
 114 void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig)
 115 {
 116 }
 117
 118 bool wxGUIAppTraits::DoMessageFromThreadWait()
 119 {
 120     return false;
 121 }
 122
 123 wxToolkitInfo& wxGUIAppTraits::GetToolkitInfo()
 124 {
 125     static wxToolkitInfo info;
 126     wxToolkitInfo& baseInfo = wxAppTraits::GetToolkitInfo();
 127     info.versionMajor = baseInfo.versionMajor;
 128     info.versionMinor = baseInfo.versionMinor;
 129     info.os = baseInfo.os;
 130     info.shortName = _T("palmos");
 131     info.name = _T("wxPalmOS");
 132 #ifdef __WXUNIVERSAL__
 133     info.shortName << _T("univ");
 134     info.name << _T("/wxUniversal");
 135 #endif
 136     return info;
 137 }
 138
 139 // ===========================================================================
 140 // wxApp implementation
 141 // ===========================================================================
 142
 143 int wxApp::m_nCmdShow = 0;
 144
 145 // ---------------------------------------------------------------------------
 146 // wxWin macros
 147 // ---------------------------------------------------------------------------
 148
 149 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 150
 151 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 152     EVT_IDLE(wxApp::OnIdle)
 153     EVT_END_SESSION(wxApp::OnEndSession)
 154     EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 155 END_EVENT_TABLE()
 156
 157 // class to ensure that wxAppBase::CleanUp() is called if our Initialize()
 158 // fails
 159 class wxCallBaseCleanup
 160 {
 161 public:
 162     wxCallBaseCleanup(wxApp *app) : m_app(app) { }
 163     ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }
 164
 165     void Dismiss() { m_app = NULL; }
 166
 167 private:
 168     wxApp *m_app;
 169 };
 170
 171 //// Initialize
 172 bool wxApp::Initialize(int& argc, wxChar **argv)
 173 {
 174     if ( !wxAppBase::Initialize(argc, argv) )
 175         return false;
 176
 177     // ensure that base cleanup is done if we return too early
 178     wxCallBaseCleanup callBaseCleanup(this);
 179
 180     wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
 181
 182     callBaseCleanup.Dismiss();
 183
 184     return true;
 185 }
 186
 187 // ---------------------------------------------------------------------------
 188 // RegisterWindowClasses
 189 // ---------------------------------------------------------------------------
 190
 191 // TODO we should only register classes really used by the app. For this it
 192 //      would be enough to just delay the class registration until an attempt
 193 //      to create a window of this class is made.
 194 bool wxApp::RegisterWindowClasses()
 195 {
 196     return true;
 197 }
 198
 199 // ---------------------------------------------------------------------------
 200 // UnregisterWindowClasses
 201 // ---------------------------------------------------------------------------
 202
 203 bool wxApp::UnregisterWindowClasses()
 204 {
 205     bool retval = true;
 206     return retval;
 207 }
 208
 209 void wxApp::CleanUp()
 210 {
 211     // all objects pending for deletion must be deleted first, otherwise we
 212     // would crash when they use wxWinHandleHash (and UnregisterWindowClasses()
 213     // call wouldn't succeed as long as any windows still exist), so call the
 214     // base class method first and only then do our clean up
 215     wxAppBase::CleanUp();
 216
 217     // for an EXE the classes are unregistered when it terminates but DLL may
 218     // be loaded several times (load/unload/load) into the same process in
 219     // which case the registration will fail after the first time if we don't
 220     // unregister the classes now
 221     UnregisterWindowClasses();
 222
 223     delete wxWinHandleHash;
 224     wxWinHandleHash = NULL;
 225 }
 226
 227 // ----------------------------------------------------------------------------
 228 // wxApp ctor/dtor
 229 // ----------------------------------------------------------------------------
 230
 231 wxApp::wxApp()
 232 {
 233     m_printMode = wxPRINT_WINDOWS;
 234 }
 235
 236 wxApp::~wxApp()
 237 {
 238     // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they
 239     // don't come from main(), so we have to free them
 240
 241     while ( argc )
 242     {
 243         // m_argv elements were allocated by wxStrdup()
 244         free(argv[--argc]);
 245     }
 246
 247     // but m_argv itself -- using new[]
 248     delete [] argv;
 249 }
 250
 251 // ----------------------------------------------------------------------------
 252 // wxApp idle handling
 253 // ----------------------------------------------------------------------------
 254
 255 void wxApp::OnIdle(wxIdleEvent& event)
 256 {
 257     wxAppBase::OnIdle(event);
 258 }
 259
 260 void wxApp::WakeUpIdle()
 261 {
 262 }
 263
 264 // ----------------------------------------------------------------------------
 265 // other wxApp event hanlders
 266 // ----------------------------------------------------------------------------
 267
 268 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
 269 {
 270     if (GetTopWindow())
 271         GetTopWindow()->Close(true);
 272 }
 273
 274 // Default behaviour: close the application with prompts. The
 275 // user can veto the close, and therefore the end session.
 276 void wxApp::OnQueryEndSession(wxCloseEvent& event)
 277 {
 278     if (GetTopWindow())
 279     {
 280         if (!GetTopWindow()->Close(!event.CanVeto()))
 281             event.Veto(true);
 282     }
 283 }
 284
 285 // ----------------------------------------------------------------------------
 286 // miscellaneous
 287 // ----------------------------------------------------------------------------
 288
 289 /* static */
 290 int wxApp::GetComCtl32Version()
 291 {
 292     return 0;
 293 }
 294
 295 // Yield to incoming messages
 296
 297 bool wxApp::Yield(bool onlyIfNeeded)
 298 {
 299     return true;
 300 }
 301
 302 #if wxUSE_EXCEPTIONS
 303
 304 // ----------------------------------------------------------------------------
 305 // exception handling
 306 // ----------------------------------------------------------------------------
 307
 308 bool wxApp::OnExceptionInMainLoop()
 309 {
 310     return true;
 311 }
 312
 313 #endif // wxUSE_EXCEPTIONS