preserve type when loaded image is rescaled, #11543

[wxWidgets.git] / src / unix / appunix.cpp

diff --git a/src/unix/appunix.cpp b/src/unix/appunix.cpp
index a40991715ab1ab477d938e4e16fd39ac42a34c54..1c89ecf7e4f54d9a887d36cfb4d6a18aad91b49c 100644 (file)
--- a/src/unix/appunix.cpp
+++ b/src/unix/appunix.cpp
@@ -8,19 +8,27 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#include "wx/app.h"
-#include "wx/log.h"
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/log.h"
+#endif
+
 #include "wx/evtloop.h"
 
 #include <signal.h>
 #include <unistd.h>
 
-bool wxAppConsoleUnix::Initialize(int& argc, wxChar** argv)
+// use unusual names for arg[cv] to avoid clashes with wxApp members with the
+// same names
+bool wxAppConsole::Initialize(int& argc_, wxChar** argv_)
 {
-    if ( !wxAppConsole::Initialize(argc,argv) )
-        return false;
-
-    if ( !m_mainLoop->IsOk() )
+    if ( !wxAppConsoleBase::Initialize(argc_, argv_) )
         return false;
 
     sigemptyset(&m_signalsCaught);
@@ -28,9 +36,9 @@ bool wxAppConsoleUnix::Initialize(int& argc, wxChar** argv)
     return true;
 }
 
-void wxAppConsoleUnix::HandleSignal(int signal)
+void wxAppConsole::HandleSignal(int signal)
 {
-    wxAppConsoleUnix * const app = wxTheApp;
+    wxAppConsole * const app = wxTheApp;
     if ( !app )
         return;
 
@@ -38,7 +46,7 @@ void wxAppConsoleUnix::HandleSignal(int signal)
     app->WakeUpIdle();
 }
 
-void wxAppConsoleUnix::CheckSignal()
+void wxAppConsole::CheckSignal()
 {
     for ( SignalHandlerHash::iterator it = m_signalHandlerHash.begin();
           it != m_signalHandlerHash.end();
@@ -53,15 +61,29 @@ void wxAppConsoleUnix::CheckSignal()
     }
 }
 
-bool wxAppConsoleUnix::SetSignalHandler(int signal, SignalHandler handler)
+// the type of the signal handlers we use is "void(*)(int)" while the real
+// signal handlers are extern "C" and so have incompatible type and at least
+// Sun CC warns about it, so use explicit casts to suppress these warnings as
+// they should be harmless
+extern "C"
 {
-    const bool install = handler != SIG_DFL && handler != SIG_IGN;
+    typedef void (*SignalHandler_t)(int);
+}
+
+bool wxAppConsole::SetSignalHandler(int signal, SignalHandler handler)
+{
+    const bool install = (SignalHandler_t)handler != SIG_DFL &&
+                         (SignalHandler_t)handler != SIG_IGN;
 
     struct sigaction sa;
     memset(&sa, 0, sizeof(sa));
-    sa.sa_handler = &wxAppConsoleUnix::HandleSignal;
-    sa.sa_flags = SA_RESTART;
-    int res = sigaction(signal, &sa, 0);
+    sa.sa_handler = (SignalHandler_t)&wxAppConsole::HandleSignal;
+#ifdef __VMS
+   sa.sa_flags = 0;
+#else
+   sa.sa_flags = SA_RESTART;
+#endif
+   int res = sigaction(signal, &sa, 0);
     if ( res != 0 )
     {
         wxLogSysError(_("Failed to install signal handler"));
@@ -75,3 +97,4 @@ bool wxAppConsoleUnix::SetSignalHandler(int signal, SignalHandler handler)
 
     return true;
 }
+