/////////////////////////////////////////////////////////////////////////////
-// Name: common/appcmn.cpp
+// Name: src/common/appcmn.cpp
// Purpose: wxAppBase methods common to all platforms
// Author: Vadim Zeitlin
// Modified by:
// headers
// ---------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "appbase.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifndef WX_PRECOMP
#include "wx/app.h"
+ #include "wx/window.h"
+ #include "wx/bitmap.h"
+ #include "wx/log.h"
+ #include "wx/msgdlg.h"
+ #include "wx/confbase.h"
+ #include "wx/utils.h"
+ #include "wx/wxcrtvararg.h"
#endif
+#include "wx/apptrait.h"
+#include "wx/cmdline.h"
+#include "wx/msgout.h"
#include "wx/thread.h"
+#include "wx/vidmode.h"
+#include "wx/evtloop.h"
-// ---------------------------------------------------------------------------
-// wxAppBase
+#if wxUSE_FONTMAP
+ #include "wx/fontmap.h"
+#endif // wxUSE_FONTMAP
+
+// DLL options compatibility check:
+#include "wx/build.h"
+WX_CHECK_BUILD_OPTIONS("wxCore")
+
+// ============================================================================
+// wxAppBase implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// initialization
+// ----------------------------------------------------------------------------
+
+wxAppBase::wxAppBase()
+{
+ m_topWindow = NULL;
+
+ m_useBestVisual = false;
+ m_forceTrueColour = false;
+
+ m_isActive = true;
+
+ // We don't want to exit the app if the user code shows a dialog from its
+ // OnInit() -- but this is what would happen if we set m_exitOnFrameDelete
+ // to Yes initially as this dialog would be the last top level window.
+ // OTOH, if we set it to No initially we'll have to overwrite it with Yes
+ // when we enter our OnRun() because we do want the default behaviour from
+ // then on. But this would be a problem if the user code calls
+ // SetExitOnFrameDelete(false) from OnInit().
+ //
+ // So we use the special "Later" value which is such that
+ // GetExitOnFrameDelete() returns false for it but which we know we can
+ // safely (i.e. without losing the effect of the users SetExitOnFrameDelete
+ // call) overwrite in OnRun()
+ m_exitOnFrameDelete = Later;
+}
+
+bool wxAppBase::Initialize(int& argcOrig, wxChar **argvOrig)
+{
+ if ( !wxAppConsole::Initialize(argcOrig, argvOrig) )
+ return false;
+
+ wxInitializeStockLists();
+
+ wxBitmap::InitStandardHandlers();
+
+ // for compatibility call the old initialization function too
+ if ( !OnInitGui() )
+ return false;
+
+ return true;
+}
+
+// ----------------------------------------------------------------------------
+// cleanup
+// ----------------------------------------------------------------------------
+
+wxAppBase::~wxAppBase()
+{
+ // this destructor is required for Darwin
+}
+
+void wxAppBase::CleanUp()
+{
+ // clean up all the pending objects
+ DeletePendingObjects();
+
+ // and any remaining TLWs (they remove themselves from wxTopLevelWindows
+ // when destroyed, so iterate until none are left)
+ while ( !wxTopLevelWindows.empty() )
+ {
+ // do not use Destroy() here as it only puts the TLW in pending list
+ // but we want to delete them now
+ delete wxTopLevelWindows.GetFirst()->GetData();
+ }
+
+ // undo everything we did in Initialize() above
+ wxBitmap::CleanUpHandlers();
+
+ wxStockGDI::DeleteAll();
+
+ wxDeleteStockLists();
+
+ wxDELETE(wxTheColourDatabase);
+
+ wxAppConsole::CleanUp();
+}
+
+// ----------------------------------------------------------------------------
+// various accessors
+// ----------------------------------------------------------------------------
+
+wxWindow* wxAppBase::GetTopWindow() const
+{
+ wxWindow* window = m_topWindow;
+ if (window == NULL && wxTopLevelWindows.GetCount() > 0)
+ window = wxTopLevelWindows.GetFirst()->GetData();
+ return window;
+}
+
+wxVideoMode wxAppBase::GetDisplayMode() const
+{
+ return wxVideoMode();
+}
+
+wxLayoutDirection wxAppBase::GetLayoutDirection() const
+{
+#if wxUSE_INTL
+ const wxLocale *const locale = wxGetLocale();
+ if ( locale )
+ {
+ const wxLanguageInfo *const
+ info = wxLocale::GetLanguageInfo(locale->GetLanguage());
+
+ if ( info )
+ return info->LayoutDirection;
+ }
+#endif // wxUSE_INTL
+
+ // we don't know
+ return wxLayout_Default;
+}
+
+#if wxUSE_CMDLINE_PARSER
+
+// ----------------------------------------------------------------------------
+// GUI-specific command line options handling
+// ----------------------------------------------------------------------------
+
+#define OPTION_THEME "theme"
+#define OPTION_MODE "mode"
+
+void wxAppBase::OnInitCmdLine(wxCmdLineParser& parser)
+{
+ // first add the standard non GUI options
+ wxAppConsole::OnInitCmdLine(parser);
+
+ // the standard command line options
+ static const wxCmdLineEntryDesc cmdLineGUIDesc[] =
+ {
+#ifdef __WXUNIVERSAL__
+ {
+ wxCMD_LINE_OPTION,
+ NULL,
+ OPTION_THEME,
+ gettext_noop("specify the theme to use"),
+ wxCMD_LINE_VAL_STRING,
+ 0x0
+ },
+#endif // __WXUNIVERSAL__
+
+#if defined(__WXDFB__)
+ // VS: this is not specific to wxDFB, all fullscreen (framebuffer) ports
+ // should provide this option. That's why it is in common/appcmn.cpp
+ // and not dfb/app.cpp
+ {
+ wxCMD_LINE_OPTION,
+ NULL,
+ OPTION_MODE,
+ gettext_noop("specify display mode to use (e.g. 640x480-16)"),
+ wxCMD_LINE_VAL_STRING,
+ 0x0
+ },
+#endif // __WXDFB__
+
+ // terminator
+ wxCMD_LINE_DESC_END
+ };
+
+ parser.SetDesc(cmdLineGUIDesc);
+}
+
+bool wxAppBase::OnCmdLineParsed(wxCmdLineParser& parser)
+{
+#ifdef __WXUNIVERSAL__
+ wxString themeName;
+ if ( parser.Found(OPTION_THEME, &themeName) )
+ {
+ wxTheme *theme = wxTheme::Create(themeName);
+ if ( !theme )
+ {
+ wxLogError(_("Unsupported theme '%s'."), themeName.c_str());
+ return false;
+ }
+
+ // Delete the defaultly created theme and set the new theme.
+ delete wxTheme::Get();
+ wxTheme::Set(theme);
+ }
+#endif // __WXUNIVERSAL__
+
+#if defined(__WXDFB__)
+ wxString modeDesc;
+ if ( parser.Found(OPTION_MODE, &modeDesc) )
+ {
+ unsigned w, h, bpp;
+ if ( wxSscanf(modeDesc.c_str(), wxT("%ux%u-%u"), &w, &h, &bpp) != 3 )
+ {
+ wxLogError(_("Invalid display mode specification '%s'."), modeDesc.c_str());
+ return false;
+ }
+
+ if ( !SetDisplayMode(wxVideoMode(w, h, bpp)) )
+ return false;
+ }
+#endif // __WXDFB__
+
+ return wxAppConsole::OnCmdLineParsed(parser);
+}
+
+#endif // wxUSE_CMDLINE_PARSER
+
+// ----------------------------------------------------------------------------
+// OnXXX() hooks
// ----------------------------------------------------------------------------
-void wxAppBase::ProcessPendingEvents()
+bool wxAppBase::OnInitGui()
+{
+#ifdef __WXUNIVERSAL__
+ if ( !wxTheme::Get() && !wxTheme::CreateDefault() )
+ return false;
+#endif // __WXUNIVERSAL__
+
+ return true;
+}
+
+int wxAppBase::OnRun()
+{
+ // see the comment in ctor: if the initial value hasn't been changed, use
+ // the default Yes from now on
+ if ( m_exitOnFrameDelete == Later )
+ {
+ m_exitOnFrameDelete = Yes;
+ }
+ //else: it has been changed, assume the user knows what he is doing
+
+ return wxAppConsole::OnRun();
+}
+
+int wxAppBase::OnExit()
+{
+#ifdef __WXUNIVERSAL__
+ delete wxTheme::Set(NULL);
+#endif // __WXUNIVERSAL__
+
+ return wxAppConsole::OnExit();
+}
+
+wxAppTraits *wxAppBase::CreateTraits()
{
- // ensure that we're the only thread to modify the pending events list
- wxCRIT_SECT_LOCKER(locker, wxPendingEventsLocker);
+ return new wxGUIAppTraits;
+}
+
+// ----------------------------------------------------------------------------
+// misc
+// ----------------------------------------------------------------------------
- if ( !wxPendingEvents )
+void wxAppBase::SetActive(bool active, wxWindow * WXUNUSED(lastFocus))
+{
+ if ( active == m_isActive )
return;
- // iterate until the list becomes empty
- wxNode *node = wxPendingEvents->First();
+ m_isActive = active;
+
+ wxActivateEvent event(wxEVT_ACTIVATE_APP, active);
+ event.SetEventObject(this);
+
+ (void)ProcessEvent(event);
+}
+
+bool wxAppBase::SafeYield(wxWindow *win, bool onlyIfNeeded)
+{
+ wxWindowDisabler wd(win);
+
+ wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+
+ return loop && loop->Yield(onlyIfNeeded);
+}
+
+bool wxAppBase::SafeYieldFor(wxWindow *win, long eventsToProcess)
+{
+ wxWindowDisabler wd(win);
+
+ wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+
+ return loop && loop->YieldFor(eventsToProcess);
+}
+
+
+// ----------------------------------------------------------------------------
+// idle handling
+// ----------------------------------------------------------------------------
+
+// Returns true if more time is needed.
+bool wxAppBase::ProcessIdle()
+{
+ // call the base class version first to send the idle event to wxTheApp
+ // itself
+ bool needMore = wxAppConsoleBase::ProcessIdle();
+ wxIdleEvent event;
+ wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
while (node)
{
- wxEvtHandler *handler = (wxEvtHandler *)node->Data();
+ wxWindow* win = node->GetData();
+
+ // Don't send idle events to the windows that are about to be destroyed
+ // anyhow, this is wasteful and unexpected.
+ if ( !wxPendingDelete.Member(win) && win->SendIdleEvents(event) )
+ needMore = true;
+ node = node->GetNext();
+ }
+
+ wxUpdateUIEvent::ResetUpdateTime();
+
+ return needMore;
+}
+
+// ----------------------------------------------------------------------------
+// wxGUIAppTraitsBase
+// ----------------------------------------------------------------------------
+
+#if wxUSE_LOG
+
+wxLog *wxGUIAppTraitsBase::CreateLogTarget()
+{
+#if wxUSE_LOGGUI
+#ifndef __WXOSX_IPHONE__
+ return new wxLogGui;
+#else
+ return new wxLogStderr;
+#endif
+#else
+ // we must have something!
+ return new wxLogStderr;
+#endif
+}
+
+#endif // wxUSE_LOG
+
+wxMessageOutput *wxGUIAppTraitsBase::CreateMessageOutput()
+{
+ // The standard way of printing help on command line arguments (app --help)
+ // is (according to common practice):
+ // - console apps: to stderr (on any platform)
+ // - GUI apps: stderr on Unix platforms (!)
+ // stderr if available and message box otherwise on others
+ // (currently stderr only Windows if app running from console)
+#ifdef __UNIX__
+ return new wxMessageOutputStderr;
+#else // !__UNIX__
+ // wxMessageOutputMessageBox doesn't work under Motif
+ #ifdef __WXMOTIF__
+ return new wxMessageOutputLog;
+ #elif wxUSE_MSGDLG
+ return new wxMessageOutputBest(wxMSGOUT_PREFER_STDERR);
+ #else
+ return new wxMessageOutputStderr;
+ #endif
+#endif // __UNIX__/!__UNIX__
+}
+
+#if wxUSE_FONTMAP
+
+wxFontMapper *wxGUIAppTraitsBase::CreateFontMapper()
+{
+ return new wxFontMapper;
+}
+
+#endif // wxUSE_FONTMAP
+
+wxRendererNative *wxGUIAppTraitsBase::CreateRenderer()
+{
+ // use the default native renderer by default
+ return NULL;
+}
+
+bool wxGUIAppTraitsBase::ShowAssertDialog(const wxString& msg)
+{
+#if wxDEBUG_LEVEL
+ // under MSW we prefer to use the base class version using ::MessageBox()
+ // even if wxMessageBox() is available because it has less chances to
+ // double fault our app than our wxMessageBox()
+ //
+ // under DFB the message dialog is not always functional right now
+ //
+ // and finally we can't use wxMessageBox() if it wasn't compiled in, of
+ // course
+#if !defined(__WXMSW__) && !defined(__WXDFB__) && wxUSE_MSGDLG
+
+ // we can't (safely) show the GUI dialog from another thread, only do it
+ // for the asserts in the main thread
+ if ( wxIsMainThread() )
+ {
+ wxString msgDlg = msg;
+
+#if wxUSE_STACKWALKER
+ const wxString stackTrace = GetAssertStackTrace();
+ if ( !stackTrace.empty() )
+ msgDlg << wxT("\n\nCall stack:\n") << stackTrace;
+#endif // wxUSE_STACKWALKER
+
+ // this message is intentionally not translated -- it is for
+ // developpers only
+ msgDlg += wxT("\nDo you want to stop the program?\n")
+ wxT("You can also choose [Cancel] to suppress ")
+ wxT("further warnings.");
+
+ switch ( wxMessageBox(msgDlg, wxT("wxWidgets Debug Alert"),
+ wxYES_NO | wxCANCEL | wxICON_STOP ) )
+ {
+ case wxYES:
+ wxTrap();
+ break;
+
+ case wxCANCEL:
+ // no more asserts
+ return true;
- handler->ProcessPendingEvents();
+ //case wxNO: nothing to do
+ }
- delete node;
- node = wxPendingEvents->First();
+ return false;
}
+#endif // wxUSE_MSGDLG
+#endif // wxDEBUG_LEVEL
+
+ return wxAppTraitsBase::ShowAssertDialog(msg);
+}
+
+bool wxGUIAppTraitsBase::HasStderr()
+{
+ // we consider that under Unix stderr always goes somewhere, even if the
+ // user doesn't always see it under GUI desktops
+#ifdef __UNIX__
+ return true;
+#else
+ return false;
+#endif
}
projects / wxWidgets.git / blobdiff