Add doc for wxGraphicsContext.Create(), which is a lightweight context with no target...

[wxWidgets.git] / src / gtk / app.cpp

diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 72dd08db41d27c55bb9339dc7d4e9e399fea6404..3754531c01719eec088d7256fea9fee7700b4315 100644 (file)
--- a/src/gtk/app.cpp
+++ b/src/gtk/app.cpp
@@ -26,8 +26,8 @@
     #include <gpe/init.h>
 #endif
 
     #include <gpe/init.h>
 #endif
 

-#include "wx/gtk/private.h"

 #include "wx/apptrait.h"
 #include "wx/apptrait.h"

+#include "wx/fontmap.h"

 
 #if wxUSE_LIBHILDON
     #include <hildon-widgets/hildon-program.h>
 
 #if wxUSE_LIBHILDON
     #include <hildon-widgets/hildon-program.h>


@@ -37,7 +37,8 @@
     #include <hildon/hildon.h>
 #endif // wxUSE_LIBHILDON2
 
     #include <hildon/hildon.h>
 #endif // wxUSE_LIBHILDON2
 

-#include <gdk/gdkx.h>
+#include <gtk/gtk.h>
+#include "wx/gtk/private.h"

 
 //-----------------------------------------------------------------------------
 // link GnomeVFS
 
 //-----------------------------------------------------------------------------
 // link GnomeVFS


@@ -85,7 +86,7 @@ static void wx_add_idle_hooks()
         }
     }
     // "size_allocate" hook
         }
     }
     // "size_allocate" hook

-    // Needed to match the behavior of the old idle system,
+    // Needed to match the behaviour of the old idle system,

     // but probably not necessary.
     {
         static bool hook_installed;
     // but probably not necessary.
     {
         static bool hook_installed;


@@ -124,7 +125,7 @@ bool wxApp::DoIdle()
 
 #if wxDEBUG_LEVEL
         // don't generate the idle events while the assert modal dialog is shown,
 
 #if wxDEBUG_LEVEL
         // don't generate the idle events while the assert modal dialog is shown,

-        // this matches the behavior of wxMSW
+        // this matches the behaviour of wxMSW

         if (m_isInAssert)
             return false;
 #endif
         if (m_isInAssert)
             return false;
 #endif


@@ -142,29 +143,26 @@ bool wxApp::DoIdle()
 #if wxUSE_THREADS
     wxMutexLocker lock(m_idleMutex);
 #endif
 #if wxUSE_THREADS
     wxMutexLocker lock(m_idleMutex);
 #endif

-    // if a new idle source was added during ProcessIdle
-    if (m_idleSourceId != 0)
-    {
-        // remove it
-        g_source_remove(m_idleSourceId);
-        m_idleSourceId = 0;
-    }
-
-    // Pending events can be added asynchronously,
-    // need to keep idle source if any have appeared
-    if (HasPendingEvents())
-        needMore = true;

 
 

-    // if more idle processing requested
-    if (needMore)
+    bool keepSource = false;
+    // if a new idle source has not been added, either as a result of idle
+    // processing above or by another thread calling WakeUpIdle()
+    if (m_idleSourceId == 0)

     {
     {

-        // keep this source installed
-        m_idleSourceId = id_save;
-        return true;
+        // if more idle processing was requested or pending events have appeared
+        if (needMore || HasPendingEvents())
+        {
+            // keep this source installed
+            m_idleSourceId = id_save;
+            keepSource = true;
+        }
+        else // add hooks and remove this source
+            wx_add_idle_hooks();

     }
     }

-    // add hooks and remove this source
-    wx_add_idle_hooks();
-    return false;
+    // else remove this source, leave new one installed
+    // we must keep an idle source, otherwise a wakeup could be lost
+
+    return keepSource;

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -201,6 +199,10 @@ wxApp::~wxApp()
 
 bool wxApp::SetNativeTheme(const wxString& theme)
 {
 
 bool wxApp::SetNativeTheme(const wxString& theme)
 {

+#ifdef __WXGTK3__
+    wxUnusedVar(theme);
+    return false;
+#else

     wxString path;
     path = gtk_rc_get_theme_dir();
     path += "/";
     wxString path;
     path = gtk_rc_get_theme_dir();
     path += "/";


@@ -221,6 +223,7 @@ bool wxApp::SetNativeTheme(const wxString& theme)
     gtk_rc_reparse_all_for_settings(gtk_settings_get_default(), TRUE);
 
     return true;
     gtk_rc_reparse_all_for_settings(gtk_settings_get_default(), TRUE);
 
     return true;

+#endif

 }
 
 bool wxApp::OnInitGui()
 }
 
 bool wxApp::OnInitGui()


@@ -228,6 +231,7 @@ bool wxApp::OnInitGui()
     if ( !wxAppBase::OnInitGui() )
         return false;
 
     if ( !wxAppBase::OnInitGui() )
         return false;
 

+#ifndef __WXGTK3__

     // if this is a wxGLApp (derived from wxApp), and we've already
     // chosen a specific visual, then derive the GdkVisual from that
     if ( GetXVisualInfo() )
     // if this is a wxGLApp (derived from wxApp), and we've already
     // chosen a specific visual, then derive the GdkVisual from that
     if ( GetXVisualInfo() )


@@ -265,6 +269,7 @@ bool wxApp::OnInitGui()
             }
         }
     }
             }
         }
     }

+#endif

 
 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
     if ( !GetHildonProgram() )
 
 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
     if ( !GetHildonProgram() )


@@ -294,6 +299,7 @@ bool wxApp::Initialize(int& argc_, wxChar **argv_)
     // gtk+ 2.0 supports Unicode through UTF-8 strings
     wxConvCurrent = &wxConvUTF8;
 
     // gtk+ 2.0 supports Unicode through UTF-8 strings
     wxConvCurrent = &wxConvUTF8;
 

+#ifdef __UNIX__

     // decide which conversion to use for the file names
 
     // (1) this variable exists for the sole purpose of specifying the encoding
     // decide which conversion to use for the file names
 
     // (1) this variable exists for the sole purpose of specifying the encoding


@@ -303,29 +309,38 @@ bool wxApp::Initialize(int& argc_, wxChar **argv_)
     if (encName.CmpNoCase(wxT("@locale")) == 0)
         encName.clear();
     encName.MakeUpper();
     if (encName.CmpNoCase(wxT("@locale")) == 0)
         encName.clear();
     encName.MakeUpper();

-#if wxUSE_INTL

     if (encName.empty())
     {
     if (encName.empty())
     {

+#if wxUSE_INTL

         // (2) if a non default locale is set, assume that the user wants his
         //     filenames in this locale too
         encName = wxLocale::GetSystemEncodingName().Upper();
         // (2) if a non default locale is set, assume that the user wants his
         //     filenames in this locale too
         encName = wxLocale::GetSystemEncodingName().Upper();

+
+        // But don't consider ASCII in this case.
+        if ( !encName.empty() )
+        {
+#if wxUSE_FONTMAP
+            wxFontEncoding enc = wxFontMapperBase::GetEncodingFromName(encName);
+            if ( enc == wxFONTENCODING_DEFAULT )
+#else // !wxUSE_FONTMAP
+            if ( encName == wxT("US-ASCII") )
+#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
+            {
+                // This means US-ASCII when returned from GetEncodingFromName().
+                encName.clear();
+            }
+        }
+#endif // wxUSE_INTL
+

         // (3) finally use UTF-8 by default
         // (3) finally use UTF-8 by default

-        if (encName.empty() || encName == wxT("US-ASCII"))
+        if ( encName.empty() )

             encName = wxT("UTF-8");
         wxSetEnv(wxT("G_FILENAME_ENCODING"), encName);
     }
             encName = wxT("UTF-8");
         wxSetEnv(wxT("G_FILENAME_ENCODING"), encName);
     }

-#else
-    if (encName.empty())
-        encName = wxT("UTF-8");

 
 

-    // if wxUSE_INTL==0 it probably indicates that only "C" locale is supported
-    // by the program anyhow so prevent GTK+ from calling setlocale(LC_ALL, "")
-    // from gtk_init_check() as it does by default
-    gtk_disable_setlocale();
-
-#endif // wxUSE_INTL

     static wxConvBrokenFileNames fileconv(encName);
     wxConvFileName = &fileconv;
     static wxConvBrokenFileNames fileconv(encName);
     wxConvFileName = &fileconv;

+#endif // __UNIX__

 
 
     bool init_result;
 
 
     bool init_result;


@@ -343,13 +358,17 @@ bool wxApp::Initialize(int& argc_, wxChar **argv_)
 
     int argcGTK = argc_;
 
 
     int argcGTK = argc_;
 

+    // Prevent gtk_init_check() from changing the locale automatically for
+    // consistency with the other ports that don't do it. If necessary,
+    // wxApp::SetCLocale() may be explicitly called.
+    gtk_disable_setlocale();
+

 #ifdef __WXGPE__
     init_result = true;  // is there a _check() version of this?
     gpe_application_init( &argcGTK, &argvGTK );
 #else
 #ifdef __WXGPE__
     init_result = true;  // is there a _check() version of this?
     gpe_application_init( &argcGTK, &argvGTK );
 #else

-    init_result = gtk_init_check( &argcGTK, &argvGTK );
+    init_result = gtk_init_check( &argcGTK, &argvGTK ) != 0;

 #endif
 #endif

-    wxUpdateLocaleIsUtf8();

 
     if ( argcGTK != argc_ )
     {
 
     if ( argcGTK != argc_ )
     {


@@ -422,7 +441,7 @@ bool wxApp::Initialize(int& argc_, wxChar **argv_)
         return false;
     }
 
         return false;
     }
 

-    // we can not enter threads before gtk_init is done
+    // we cannot enter threads before gtk_init is done

     gdk_threads_enter();
 
 #if wxUSE_INTL
     gdk_threads_enter();
 
 #if wxUSE_INTL


@@ -510,11 +529,30 @@ void wxGUIAppTraits::MutexGuiLeave()
 }
 #endif // wxUSE_THREADS
 
 }
 #endif // wxUSE_THREADS
 

+/* static */
+bool wxApp::GTKIsUsingGlobalMenu()
+{
+    static int s_isUsingGlobalMenu = -1;
+    if ( s_isUsingGlobalMenu == -1 )
+    {
+        // Currently we just check for this environment variable because this
+        // is how support for the global menu is implemented under Ubuntu.
+        //
+        // If we ever get false positives, we could also check for
+        // XDG_CURRENT_DESKTOP env var being set to "Unity".
+        wxString proxy;
+        s_isUsingGlobalMenu = wxGetEnv("UBUNTU_MENUPROXY", &proxy) &&
+                                !proxy.empty() && proxy != "0";
+    }
+
+    return s_isUsingGlobalMenu == 1;
+}
+

 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 // Maemo-specific method: get the main program object
 HildonProgram *wxApp::GetHildonProgram()
 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 // Maemo-specific method: get the main program object
 HildonProgram *wxApp::GetHildonProgram()

-{ 
-    return hildon_program_get_instance(); 
+{
+    return hildon_program_get_instance();

 }
 }

-    
+

 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2