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