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_IDLE(wxApp::OnIdle)
 146     EVT_END_SESSION(wxApp::OnEndSession)
 147     EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 148 END_EVENT_TABLE()
 149
 150 // class to ensure that wxAppBase::CleanUp() is called if our Initialize()
 151 // fails
 152 class wxCallBaseCleanup
 153 {
 154 public:
 155     wxCallBaseCleanup(wxApp *app) : m_app(app) { }
 156     ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }
 157
 158     void Dismiss() { m_app = NULL; }
 159
 160 private:
 161     wxApp *m_app;
 162 };
 163
 164 //// Initialize
 165 bool wxApp::Initialize(int& argc, wxChar **argv)
 166 {
 167     if ( !wxAppBase::Initialize(argc, argv) )
 168         return false;
 169
 170     // ensure that base cleanup is done if we return too early
 171     wxCallBaseCleanup callBaseCleanup(this);
 172
 173     wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
 174
 175     callBaseCleanup.Dismiss();
 176
 177     return true;
 178 }
 179
 180 // ---------------------------------------------------------------------------
 181 // RegisterWindowClasses
 182 // ---------------------------------------------------------------------------
 183
 184 // TODO we should only register classes really used by the app. For this it
 185 //      would be enough to just delay the class registration until an attempt
 186 //      to create a window of this class is made.
 187 bool wxApp::RegisterWindowClasses()
 188 {
 189     return true;
 190 }
 191
 192 // ---------------------------------------------------------------------------
 193 // UnregisterWindowClasses
 194 // ---------------------------------------------------------------------------
 195
 196 bool wxApp::UnregisterWindowClasses()
 197 {
 198     bool retval = true;
 199     return retval;
 200 }
 201
 202 void wxApp::CleanUp()
 203 {
 204     // all objects pending for deletion must be deleted first, otherwise we
 205     // would crash when they use wxWinHandleHash (and UnregisterWindowClasses()
 206     // call wouldn't succeed as long as any windows still exist), so call the
 207     // base class method first and only then do our clean up
 208     wxAppBase::CleanUp();
 209
 210     // for an EXE the classes are unregistered when it terminates but DLL may
 211     // be loaded several times (load/unload/load) into the same process in
 212     // which case the registration will fail after the first time if we don't
 213     // unregister the classes now
 214     UnregisterWindowClasses();
 215
 216     delete wxWinHandleHash;
 217     wxWinHandleHash = NULL;
 218 }
 219
 220 // ----------------------------------------------------------------------------
 221 // wxApp ctor/dtor
 222 // ----------------------------------------------------------------------------
 223
 224 wxApp::wxApp()
 225 {
 226     m_printMode = wxPRINT_WINDOWS;
 227 }
 228
 229 wxApp::~wxApp()
 230 {
 231     // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they
 232     // don't come from main(), so we have to free them
 233
 234     while ( argc )
 235     {
 236         // m_argv elements were allocated by wxStrdup()
 237         free(argv[--argc]);
 238     }
 239
 240     // but m_argv itself -- using new[]
 241     delete [] argv;
 242 }
 243
 244 // ----------------------------------------------------------------------------
 245 // wxApp idle handling
 246 // ----------------------------------------------------------------------------
 247
 248 void wxApp::OnIdle(wxIdleEvent& event)
 249 {
 250     wxAppBase::OnIdle(event);
 251 }
 252
 253 void wxApp::WakeUpIdle()
 254 {
 255 }
 256
 257 // ----------------------------------------------------------------------------
 258 // other wxApp event hanlders
 259 // ----------------------------------------------------------------------------
 260
 261 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
 262 {
 263     if (GetTopWindow())
 264         GetTopWindow()->Close(true);
 265 }
 266
 267 // Default behaviour: close the application with prompts. The
 268 // user can veto the close, and therefore the end session.
 269 void wxApp::OnQueryEndSession(wxCloseEvent& event)
 270 {
 271     if (GetTopWindow())
 272     {
 273         if (!GetTopWindow()->Close(!event.CanVeto()))
 274             event.Veto(true);
 275     }
 276 }
 277
 278 // ----------------------------------------------------------------------------
 279 // miscellaneous
 280 // ----------------------------------------------------------------------------
 281
 282 /* static */
 283 int wxApp::GetComCtl32Version()
 284 {
 285     return 0;
 286 }
 287
 288 // Yield to incoming messages
 289
 290 bool wxApp::Yield(bool onlyIfNeeded)
 291 {
 292     return true;
 293 }
 294
 295 #if wxUSE_EXCEPTIONS
 296
 297 // ----------------------------------------------------------------------------
 298 // exception handling
 299 // ----------------------------------------------------------------------------
 300
 301 bool wxApp::OnExceptionInMainLoop()
 302 {
 303     return true;
 304 }
 305
 306 #endif // wxUSE_EXCEPTIONS