X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c1bc8d9f92a3fde4e9d33213a1df46992478f369..05e0b047d879cdbfade7f2ab346c0acdf3e29f96:/src/gtk/window.cpp

diff --git a/src/gtk/window.cpp b/src/gtk/window.cpp
index 89c6390b6a..f62c235b8b 100644
--- a/src/gtk/window.cpp
+++ b/src/gtk/window.cpp
@@ -40,6 +40,29 @@
 #include <gdk/gdkkeysyms.h>
 #include <gdk/gdkx.h>
 
+#if !GTK_CHECK_VERSION(2,10,0)
+    // GTK+ can reliably detect Meta key state only since 2.10 when
+    // GDK_META_MASK was introduced -- there wasn't any way to detect it
+    // in older versions. wxGTK used GDK_MOD2_MASK for this purpose, but
+    // GDK_MOD2_MASK is documented as:
+    //
+    //     the fifth modifier key (it depends on the modifier mapping of the X
+    //     server which key is interpreted as this modifier)
+    //
+    // In other words, it isn't guaranteed to map to Meta. This is a real
+    // problem: it is common to map NumLock to it (in fact, it's an exception
+    // if the X server _doesn't_ use it for NumLock).  So the old code caused
+    // wxKeyEvent::MetaDown() to always return true as long as NumLock was on
+    // on many systems, which broke all applications using
+    // wxKeyEvent::GetModifiers() to check modifiers state (see e.g.  here:
+    // http://tinyurl.com/56lsk2).
+    //
+    // Because of this, it's better to not detect Meta key state at all than
+    // to detect it incorrectly. Hence the following #define, which causes
+    // m_metaDown to be always set to false.
+    #define GDK_META_MASK 0
+#endif
+
 //-----------------------------------------------------------------------------
 // documentation on internals
 //-----------------------------------------------------------------------------
@@ -278,8 +301,6 @@ gtk_window_expose_callback( GtkWidget* widget,
 
 #ifndef __WXUNIVERSAL__
 
-GtkWidget* GetEntryWidget();
-
 extern "C" {
 static gboolean
 expose_event_border(GtkWidget* widget, GdkEventExpose* gdk_event, wxWindow* win)
@@ -320,7 +341,7 @@ expose_event_border(GtkWidget* widget, GdkEventExpose* gdk_event, wxWindow* win)
             // for scrollable ones
             detail = "viewport";
 
-        GtkWidget* styleWidget = GetEntryWidget();
+        GtkWidget* styleWidget = wxGTKPrivate::GetEntryWidget();
         gtk_paint_shadow(
            styleWidget->style, gdk_event->window, GTK_STATE_NORMAL,
            shadow, NULL, styleWidget, detail, x, y, w, h);
@@ -648,7 +669,7 @@ static void wxFillOtherKeyEventFields(wxKeyEvent& event,
     event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
     event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
     event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
-    event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK) != 0;
+    event.m_metaDown = (gdk_event->state & GDK_META_MASK) != 0;
     event.m_scanCode = gdk_event->keyval;
     event.m_rawCode = (wxUint32) gdk_event->keyval;
     event.m_rawFlags = 0;
@@ -1050,7 +1071,7 @@ template<typename T> void InitMouseEvent(wxWindowGTK *win,
     event.m_shiftDown = gdk_event->state & GDK_SHIFT_MASK;
     event.m_controlDown = gdk_event->state & GDK_CONTROL_MASK;
     event.m_altDown = gdk_event->state & GDK_MOD1_MASK;
-    event.m_metaDown = gdk_event->state & GDK_MOD2_MASK;
+    event.m_metaDown = gdk_event->state & GDK_META_MASK;
     event.m_leftDown = gdk_event->state & GDK_BUTTON1_MASK;
     event.m_middleDown = gdk_event->state & GDK_BUTTON2_MASK;
     event.m_rightDown = gdk_event->state & GDK_BUTTON3_MASK;
@@ -1940,7 +1961,7 @@ wxMouseState wxGetMouseState()
     ms.SetControlDown(mask & GDK_CONTROL_MASK);
     ms.SetShiftDown(mask & GDK_SHIFT_MASK);
     ms.SetAltDown(mask & GDK_MOD1_MASK);
-    ms.SetMetaDown(mask & GDK_MOD2_MASK);
+    ms.SetMetaDown(mask & GDK_META_MASK);
 
     return ms;
 }
@@ -2912,7 +2933,7 @@ bool wxWindowGTK::GTKHandleFocusIn()
 
     // Notify the parent keeping track of focus for the kbd navigation
     // purposes that we got it.
-    wxChildFocusEvent eventChildFocus(this);
+    wxChildFocusEvent eventChildFocus(static_cast<wxWindow*>(this));
     GTKProcessEvent(eventChildFocus);
 
     wxFocusEvent eventFocus(wxEVT_SET_FOCUS, GetId());