(struct frame): New member `fontset_data'.

(FRAME_MESSAGE_BUF_SIZE): New macro.

diff --git a/src/frame.h b/src/frame.h
index 404dfcdfb0488e045e472f9445fb2c7ad1fdb8ba..47970c3d6db9341f1bbf79a11de59fba27579efb 100644 (file)
--- a/src/frame.h
+++ b/src/frame.h
@@ -290,6 +290,11 @@ struct frame
   /* The baud rate that was used to calculate costs for this frame.  */
   int cost_calculation_baud_rate;
 
+  /* A pointer to the data structure containing all information of
+     fontsets associated with this frame.  See the comments in
+     fontset.h for more detail.  */
+  struct fontset_data *fontset_data;
+
   /* Nonzero if the mouse has moved on this display
      since the last time we checked.  */
   char mouse_moved;
@@ -390,6 +395,12 @@ typedef struct frame *FRAME_PTR;
 #define FRAME_CONDEMNED_SCROLL_BARS(f) ((f)->condemned_scroll_bars)
 #define FRAME_MENU_BAR_ITEMS(f) ((f)->menu_bar_items)
 #define FRAME_COST_BAUD_RATE(f) ((f)->cost_calculation_baud_rate)
+#define FRAME_FONTSET_DATA(f) ((f)->fontset_data)
+
+/* Return the size of message_buf of the frame F.  We multiply the
+   width of the frame by 4 because multi-byte form may require at most
+   4-byte for a character.  */
+#define FRAME_MESSAGE_BUF_SIZE(f) (((int) (f)->width) * 4)
 
 /* Emacs's redisplay code could become confused if a frame's
    visibility changes at arbitrary times.  For example, if a frame is