updated for version 7.3.279

Problem:    With GTK, when gvim is full-screen and a tab is opened and using a
            specific monitor configuration the window is too big.
Solution:   Adjust the window size like on MS-Windows. (Yukihiro Nakadaira)

src/gui.c

@@ -1407,7 +1407,7 @@ gui_set_shellsize(mustset, fit_to_display, direction)
     if (!gui.shell_created)
 	return;
 
-#ifdef MSWIN
+#if defined(MSWIN) || defined(FEAT_GUI_GTK)
     /* If not setting to a user specified size and maximized, calculate the
      * number of characters that fit in the maximized window. */
     if (!mustset && gui_mch_maximized())

src/gui_gtk_x11.c

@@ -3899,6 +3899,21 @@ gui_mch_unmaximize()
 	gtk_window_unmaximize(GTK_WINDOW(gui.mainwin));
 }
 
+/*
+ * Called when the font changed while the window is maximized.  Compute the
+ * new Rows and Columns.  This is like resizing the window.
+ */
+    void
+gui_mch_newfont()
+{
+    int w, h;
+
+    gtk_window_get_size(GTK_WINDOW(gui.mainwin), &w, &h);
+    w -= get_menu_tool_width();
+    h -= get_menu_tool_height();
+    gui_resize_shell(w, h);
+}
+
 /*
  * Set the windows size.
  */
@@ -4409,14 +4424,9 @@ gui_mch_init_font(char_u *font_name, int fontset UNUSED)
 
     if (gui_mch_maximized())
     {
-	int w, h;
-
 	/* Update lines and columns in accordance with the new font, keep the
 	 * window maximized. */
-	gtk_window_get_size(GTK_WINDOW(gui.mainwin), &w, &h);
-	w -= get_menu_tool_width();
-	h -= get_menu_tool_height();
-	gui_resize_shell(w, h);
+	gui_mch_newfont();
     }
     else
     {

src/proto/gui_gtk_x11.pro

@@ -20,6 +20,7 @@ int gui_mch_get_winpos __ARGS((int *x, int *y));
 void gui_mch_set_winpos __ARGS((int x, int y));
 int gui_mch_maximized __ARGS((void));
 void gui_mch_unmaximize __ARGS((void));
+void gui_mch_newfont __ARGS((void));
 void gui_mch_set_shellsize __ARGS((int width, int height, int min_width, int min_height, int base_width, int base_height, int direction));
 void gui_mch_get_screen_dimensions __ARGS((int *screen_w, int *screen_h));
 void gui_mch_settitle __ARGS((char_u *title, char_u *icon));

src/version.c

@@ -709,6 +709,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    279,
 /**/
     278,
 /**/