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/crt.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 #include "wx/evtloop.h"
  51
  52 #if wxUSE_TOOLTIPS
  53     #include "wx/tooltip.h"
  54 #endif // wxUSE_TOOLTIPS
  55
  56 // We don't support OLE
  57 #undef wxUSE_OLE
  58 #define  wxUSE_OLE 0
  59
  60 #include <string.h>
  61 #include <ctype.h>
  62
  63 // ---------------------------------------------------------------------------
  64 // global variables
  65 // ---------------------------------------------------------------------------
  66
  67 // NB: all "NoRedraw" classes must have the same names as the "normal" classes
  68 //     with NR suffix - wxWindow::MSWCreate() supposes this
  69 const wxChar *wxCanvasClassName        = wxT("wxWindowClass");
  70 const wxChar *wxCanvasClassNameNR      = wxT("wxWindowClassNR");
  71 const wxChar *wxMDIFrameClassName      = wxT("wxMDIFrameClass");
  72 const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
  73 const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
  74 const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
  75
  76 // ----------------------------------------------------------------------------
  77 // private functions
  78 // ----------------------------------------------------------------------------
  79
  80 // ===========================================================================
  81 // wxGUIAppTraits implementation
  82 // ===========================================================================
  83
  84 // private class which we use to pass parameters from BeforeChildWaitLoop() to
  85 // AfterChildWaitLoop()
  86 struct ChildWaitLoopData
  87 {
  88     ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_)
  89     {
  90         wd = wd_;
  91         winActive = winActive_;
  92     }
  93
  94     wxWindowDisabler *wd;
  95     wxWindow *winActive;
  96 };
  97
  98 void *wxGUIAppTraits::BeforeChildWaitLoop()
  99 {
 100     return NULL;
 101 }
 102
 103 void wxGUIAppTraits::AlwaysYield()
 104 {
 105     wxYield();
 106 }
 107
 108 void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig)
 109 {
 110 }
 111
 112 bool wxGUIAppTraits::DoMessageFromThreadWait()
 113 {
 114     return false;
 115 }
 116
 117 wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const
 118 {
 119     // TODO: how to get PalmOS GUI system version ?
 120     return wxPORT_PALMOS;
 121 }
 122
 123 wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
 124 {
 125     return new wxPalmOSTimerImpl(timer);
 126 };
 127
 128 wxEventLoopBase* wxGUIAppTraits::CreateEventLoop()
 129 {
 130     return new wxEventLoop;
 131 }
 132 // ===========================================================================
 133 // wxApp implementation
 134 // ===========================================================================
 135
 136 int wxApp::m_nCmdShow = 0;
 137
 138 // ---------------------------------------------------------------------------
 139 // wxWin macros
 140 // ---------------------------------------------------------------------------
 141
 142 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 143
 144 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 145     EVT_END_SESSION(wxApp::OnEndSession)
 146     EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 147 END_EVENT_TABLE()
 148
 149 // class to ensure that wxAppBase::CleanUp() is called if our Initialize()
 150 // fails
 151 class wxCallBaseCleanup
 152 {
 153 public:
 154     wxCallBaseCleanup(wxApp *app) : m_app(app) { }
 155     ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }
 156
 157     void Dismiss() { m_app = NULL; }
 158
 159 private:
 160     wxApp *m_app;
 161 };
 162
 163 //// Initialize
 164 bool wxApp::Initialize(int& argc, wxChar **argv)
 165 {
 166     if ( !wxAppBase::Initialize(argc, argv) )
 167         return false;
 168
 169     // ensure that base cleanup is done if we return too early
 170     wxCallBaseCleanup callBaseCleanup(this);
 171
 172     wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
 173
 174     callBaseCleanup.Dismiss();
 175
 176     return true;
 177 }
 178
 179 // ---------------------------------------------------------------------------
 180 // RegisterWindowClasses
 181 // ---------------------------------------------------------------------------
 182
 183 // TODO we should only register classes really used by the app. For this it
 184 //      would be enough to just delay the class registration until an attempt
 185 //      to create a window of this class is made.
 186 bool wxApp::RegisterWindowClasses()
 187 {
 188     return true;
 189 }
 190
 191 // ---------------------------------------------------------------------------
 192 // UnregisterWindowClasses
 193 // ---------------------------------------------------------------------------
 194
 195 bool wxApp::UnregisterWindowClasses()
 196 {
 197     bool retval = true;
 198     return retval;
 199 }
 200
 201 void wxApp::CleanUp()
 202 {
 203     // all objects pending for deletion must be deleted first, otherwise we
 204     // would crash when they use wxWinHandleHash (and UnregisterWindowClasses()
 205     // call wouldn't succeed as long as any windows still exist), so call the
 206     // base class method first and only then do our clean up
 207     wxAppBase::CleanUp();
 208
 209     // for an EXE the classes are unregistered when it terminates but DLL may
 210     // be loaded several times (load/unload/load) into the same process in
 211     // which case the registration will fail after the first time if we don't
 212     // unregister the classes now
 213     UnregisterWindowClasses();
 214
 215     delete wxWinHandleHash;
 216     wxWinHandleHash = NULL;
 217 }
 218
 219 // ----------------------------------------------------------------------------
 220 // wxApp ctor/dtor
 221 // ----------------------------------------------------------------------------
 222
 223 wxApp::wxApp()
 224 {
 225     m_printMode = wxPRINT_WINDOWS;
 226 }
 227
 228 wxApp::~wxApp()
 229 {
 230     // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they
 231     // don't come from main(), so we have to free them
 232
 233     while ( argc )
 234     {
 235         // m_argv elements were allocated by wxStrdup()
 236         free(argv[--argc]);
 237     }
 238
 239     // but m_argv itself -- using new[]
 240     delete [] argv;
 241 }
 242
 243 // ----------------------------------------------------------------------------
 244 // wxApp idle handling
 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