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 #endif
  45
  46 #include "wx/apptrait.h"
  47 #include "wx/filename.h"
  48 #include "wx/module.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 // ===========================================================================
 123 // wxApp implementation
 124 // ===========================================================================
 125
 126 int wxApp::m_nCmdShow = 0;
 127
 128 // ---------------------------------------------------------------------------
 129 // wxWin macros
 130 // ---------------------------------------------------------------------------
 131
 132 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 133
 134 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 135     EVT_IDLE(wxApp::OnIdle)
 136     EVT_END_SESSION(wxApp::OnEndSession)
 137     EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 138 END_EVENT_TABLE()
 139
 140 // class to ensure that wxAppBase::CleanUp() is called if our Initialize()
 141 // fails
 142 class wxCallBaseCleanup
 143 {
 144 public:
 145     wxCallBaseCleanup(wxApp *app) : m_app(app) { }
 146     ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }
 147
 148     void Dismiss() { m_app = NULL; }
 149
 150 private:
 151     wxApp *m_app;
 152 };
 153
 154 //// Initialize
 155 bool wxApp::Initialize(int& argc, wxChar **argv)
 156 {
 157     if ( !wxAppBase::Initialize(argc, argv) )
 158         return false;
 159
 160     // ensure that base cleanup is done if we return too early
 161     wxCallBaseCleanup callBaseCleanup(this);
 162
 163     wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
 164
 165     callBaseCleanup.Dismiss();
 166
 167     return true;
 168 }
 169
 170 // ---------------------------------------------------------------------------
 171 // RegisterWindowClasses
 172 // ---------------------------------------------------------------------------
 173
 174 // TODO we should only register classes really used by the app. For this it
 175 //      would be enough to just delay the class registration until an attempt
 176 //      to create a window of this class is made.
 177 bool wxApp::RegisterWindowClasses()
 178 {
 179     return true;
 180 }
 181
 182 // ---------------------------------------------------------------------------
 183 // UnregisterWindowClasses
 184 // ---------------------------------------------------------------------------
 185
 186 bool wxApp::UnregisterWindowClasses()
 187 {
 188     bool retval = true;
 189     return retval;
 190 }
 191
 192 void wxApp::CleanUp()
 193 {
 194     // all objects pending for deletion must be deleted first, otherwise we
 195     // would crash when they use wxWinHandleHash (and UnregisterWindowClasses()
 196     // call wouldn't succeed as long as any windows still exist), so call the
 197     // base class method first and only then do our clean up
 198     wxAppBase::CleanUp();
 199
 200     // for an EXE the classes are unregistered when it terminates but DLL may
 201     // be loaded several times (load/unload/load) into the same process in
 202     // which case the registration will fail after the first time if we don't
 203     // unregister the classes now
 204     UnregisterWindowClasses();
 205
 206     delete wxWinHandleHash;
 207     wxWinHandleHash = NULL;
 208 }
 209
 210 // ----------------------------------------------------------------------------
 211 // wxApp ctor/dtor
 212 // ----------------------------------------------------------------------------
 213
 214 wxApp::wxApp()
 215 {
 216     m_printMode = wxPRINT_WINDOWS;
 217 }
 218
 219 wxApp::~wxApp()
 220 {
 221     // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they
 222     // don't come from main(), so we have to free them
 223
 224     while ( argc )
 225     {
 226         // m_argv elements were allocated by wxStrdup()
 227         free(argv[--argc]);
 228     }
 229
 230     // but m_argv itself -- using new[]
 231     delete [] argv;
 232 }
 233
 234 // ----------------------------------------------------------------------------
 235 // wxApp idle handling
 236 // ----------------------------------------------------------------------------
 237
 238 void wxApp::OnIdle(wxIdleEvent& event)
 239 {
 240     wxAppBase::OnIdle(event);
 241 }
 242
 243 void wxApp::WakeUpIdle()
 244 {
 245 }
 246
 247 // ----------------------------------------------------------------------------
 248 // other wxApp event hanlders
 249 // ----------------------------------------------------------------------------
 250
 251 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
 252 {
 253     if (GetTopWindow())
 254         GetTopWindow()->Close(true);
 255 }
 256
 257 // Default behaviour: close the application with prompts. The
 258 // user can veto the close, and therefore the end session.
 259 void wxApp::OnQueryEndSession(wxCloseEvent& event)
 260 {
 261     if (GetTopWindow())
 262     {
 263         if (!GetTopWindow()->Close(!event.CanVeto()))
 264             event.Veto(true);
 265     }
 266 }
 267
 268 // ----------------------------------------------------------------------------
 269 // miscellaneous
 270 // ----------------------------------------------------------------------------
 271
 272 /* static */
 273 int wxApp::GetComCtl32Version()
 274 {
 275     return 0;
 276 }
 277
 278 // Yield to incoming messages
 279
 280 bool wxApp::Yield(bool onlyIfNeeded)
 281 {
 282     return true;
 283 }
 284
 285 #if wxUSE_EXCEPTIONS
 286
 287 // ----------------------------------------------------------------------------
 288 // exception handling
 289 // ----------------------------------------------------------------------------
 290
 291 bool wxApp::OnExceptionInMainLoop()
 292 {
 293     return true;
 294 }
 295
 296 #endif // wxUSE_EXCEPTIONS