support retina display

[wxWidgets.git] / include / wx / gtk / window.h

diff --git a/include/wx/gtk/window.h b/include/wx/gtk/window.h
index 4e4185787bfdd7f92b43bf6e17386bd420f7aa36..171f34fac92cd7ae33fce716a6b187dce907aaf8 100644 (file)
--- a/include/wx/gtk/window.h
+++ b/include/wx/gtk/window.h
@@ -20,9 +20,8 @@
     #define WXUNUSED_IN_GTK3(x) x
 #endif
 
-// helper structure that holds class that holds GtkIMContext object and
-// some additional data needed for key events processing
-struct wxGtkIMData;
+typedef struct _GdkEventKey GdkEventKey;
+typedef struct _GtkIMContext GtkIMContext;
 
 WX_DEFINE_EXPORTED_ARRAY_PTR(GdkWindow *, wxArrayGdkWindows);
 
@@ -184,11 +183,6 @@ public:
     static wxLayoutDirection GTKGetLayout(GtkWidget *widget);
     static void GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir);
 
-    // return true if this window must have a non-NULL parent, false if it can
-    // be created without parent (normally only top level windows but in wxGTK
-    // there is also the exception of wxMenuBar)
-    virtual bool GTKNeedsParent() const { return !IsTopLevel(); }
-
     // This is called when capture is taken from the window. It will
     // fire off capture lost events.
     void GTKReleaseMouseAndNotify();
@@ -277,7 +271,40 @@ public:
     void GTKDisableFocusOutEvent();
     void GTKEnableFocusOutEvent();
 
-    wxGtkIMData         *m_imData;
+
+    // Input method support
+
+    // The IM context used for generic, i.e. non-native, windows.
+    //
+    // It might be a good idea to avoid allocating it unless key events from
+    // this window are really needed but currently we do it unconditionally.
+    //
+    // For native widgets (i.e. those for which IsOfStandardClass() returns
+    // true) it is NULL.
+    GtkIMContext* m_imContext;
+
+    // Pointer to the event being currently processed by the IME or NULL if not
+    // inside key handling.
+    GdkEventKey* m_imKeyEvent;
+
+    // This method generalizes gtk_im_context_filter_keypress(): for the
+    // generic windows it does just that but it's overridden by the classes
+    // wrapping native widgets that use IM themselves and so provide specific
+    // methods for accessing it such gtk_entry_im_context_filter_keypress().
+    virtual int GTKIMFilterKeypress(GdkEventKey* event) const;
+
+    // This method must be called from the derived classes "insert-text" signal
+    // handlers to check if the text is not being inserted by the IM and, if
+    // this is the case, generate appropriate wxEVT_CHAR events for it.
+    //
+    // Returns true if we did generate and process events corresponding to this
+    // text or false if we didn't handle it.
+    bool GTKOnInsertText(const char* text);
+
+    // This is just a helper of GTKOnInsertText() which is also used by GTK+
+    // "commit" signal handler.
+    bool GTKDoInsertTextFromIM(const char* text);
+
 
     // indices for the arrays below
     enum ScrollDir { ScrollDir_Horz, ScrollDir_Vert, ScrollDir_Max };
@@ -316,8 +343,6 @@ public:
     wxRegion             m_nativeUpdateRegion;  // not transformed for RTL
     bool                 m_dirtyTabOrder:1;     // tab order changed, GTK focus
                                                 // chain needs update
-    bool                 m_needsStyleChange:1;  // May not be able to change
-                                                // background style until OnIdle
     bool                 m_mouseButtonDown:1;
 
     bool                 m_showOnIdle:1;        // postpone showing the window until idle
@@ -404,6 +429,11 @@ protected:
 private:
     void Init();
 
+    // return true if this window must have a non-NULL parent, false if it can
+    // be created without parent (normally only top level windows but in wxGTK
+    // there is also the exception of wxMenuBar)
+    virtual bool GTKNeedsParent() const { return !IsTopLevel(); }
+
     enum ScrollUnit { ScrollUnit_Line, ScrollUnit_Page, ScrollUnit_Max };
 
     // common part of ScrollLines() and ScrollPages() and could be used, in the