/* Interface definitions for display code.
-Copyright (C) 1985, 1993-1994, 1997-2014 Free Software Foundation, Inc.
+Copyright (C) 1985, 1993-1994, 1997-2015 Free Software Foundation, Inc.
This file is part of GNU Emacs.
/* Lisp object source of this glyph. Currently either a buffer or a
string, if the glyph was produced from characters which came from
- a buffer or a string; or Lisp integer zero (a.k.a. "null object")
- if the glyph was inserted by redisplay for its own purposes, such
- as padding or truncation/continuation glyphs, or the
- overlay-arrow glyphs on TTYs. */
+ a buffer or a string; or nil if the glyph was inserted by
+ redisplay for its own purposes, such as padding, truncation, or
+ continuation glyphs, or the overlay-arrow glyphs on TTYs. */
Lisp_Object object;
/* Width in pixels. */
/* True means the background of this string has been drawn. */
bool_bf background_filled_p : 1;
- /* True means glyph string must be drawn with 16-bit functions. */
- bool_bf two_byte_p : 1;
-
/* True means that the original font determined for drawing this glyph
string could not be loaded. The member `font' has been set to
the frame's default font in this case. */
attributes except the font. */
struct face *ascii_face;
-#ifdef HAVE_XFT
- /* Extra member that a font-driver uses privately. */
+#if defined HAVE_XFT || defined HAVE_FREETYPE
+/* Extra member that a font-driver uses privately. */
void *extra;
#endif
};
((FACE) == (FACE)->ascii_face)
/* Return the id of the realized face on frame F that is like the face
- with id ID but is suitable for displaying character CHAR.
- This macro is only meaningful for multibyte character CHAR. */
+ FACE, but is suitable for displaying character CHAR at buffer or
+ string position POS. OBJECT is the string object, or nil for
+ buffer. This macro is only meaningful for multibyte character
+ CHAR. */
#define FACE_FOR_CHAR(F, FACE, CHAR, POS, OBJECT) \
face_for_char ((F), (FACE), (CHAR), (POS), (OBJECT))
: TYPE_MAXIMUM (EMACS_INT)))));
}
-/* Non-zero means face attributes have been changed since the last
+/* True means face attributes have been changed since the last
redisplay. Used in redisplay_internal. */
-extern int face_change_count;
+extern bool face_change;
/* For reordering of bidirectional text. */
ptrdiff_t base_level_stop;
/* Maximum string or buffer position + 1. ZV when iterating over
- current_buffer. */
+ current_buffer. When iterating over a string in display_string,
+ this can be smaller or greater than the number of string
+ characters, depending on the values of PRECISION and FIELD_WIDTH
+ with which display_string was called. */
ptrdiff_t end_charpos;
/* C string to iterate over. Non-null means get characters from
Object is normally the buffer which is being rendered, but it can
also be a Lisp string in case the current display element comes
from an overlay string or from a display string (before- or
- after-string). It may also be nil when a C string is being
- rendered, e.g., during mode-line or header-line update. It can
- also be a cons cell of the form `(space ...)', when we produce a
- stretch glyph from a `display' specification. Finally, it can be
- a zero-valued Lisp integer, but only temporarily, when we are
+ after-string). It may also be a zero-valued Lisp integer when a
+ C string is being rendered, e.g., during mode-line or header-line
+ update. It can also be a cons cell of the form `(space ...)',
+ when we produce a stretch glyph from a `display' specification.
+ Finally, it can be nil, but only temporarily, when we are
producing special glyphs for display purposes, like truncation
and continuation glyphs, or blanks that extend each line to the
edge of the window on a TTY.
struct image_type
{
- /* A symbol uniquely identifying the image type, .e.g `jpeg'. */
- Lisp_Object *type;
+ /* Index of a symbol uniquely identifying the image type, e.g., 'jpeg'. */
+ int type;
/* Check that SPEC is a valid image specification for the given
image type. Value is true if SPEC is valid. */
struct glyph_row *, int);
int line_bottom_y (struct it *);
int default_line_pixel_height (struct window *);
-int display_prop_intangible_p (Lisp_Object, Lisp_Object, ptrdiff_t, ptrdiff_t);
+bool display_prop_intangible_p (Lisp_Object, Lisp_Object, ptrdiff_t, ptrdiff_t);
void resize_echo_area_exactly (void);
-int resize_mini_window (struct window *, int);
+bool resize_mini_window (struct window *, bool);
void set_vertical_scroll_bar (struct window *);
void set_horizontal_scroll_bar (struct window *);
int try_window (Lisp_Object, struct text_pos, int);
int estimate_mode_line_height (struct frame *, enum face_id);
int move_it_to (struct it *, ptrdiff_t, int, int, int, int);
void pixel_to_glyph_coords (struct frame *, int, int, int *, int *,
- NativeRectangle *, int);
+ NativeRectangle *, bool);
void remember_mouse_glyph (struct frame *, int, int, NativeRectangle *);
-void mark_window_display_accurate (Lisp_Object, int);
+void mark_window_display_accurate (Lisp_Object, bool);
void redisplay_preserve_echo_area (int);
void init_iterator (struct it *, struct window *, ptrdiff_t,
ptrdiff_t, struct glyph_row *, enum face_id);
enum move_operation_enum op);
bool in_display_vector_p (struct it *);
int frame_mode_line_height (struct frame *);
-extern Lisp_Object Qtool_bar;
extern bool redisplaying_p;
extern bool help_echo_showing_p;
extern Lisp_Object help_echo_string, help_echo_window;
extern Lisp_Object lookup_glyphless_char_display (int, struct it *);
extern ptrdiff_t compute_display_string_pos (struct text_pos *,
struct bidi_string_data *,
- struct window *, int, int *);
+ struct window *, bool, int *);
extern ptrdiff_t compute_display_string_end (ptrdiff_t,
struct bidi_string_data *);
extern void produce_stretch_glyph (struct it *);
extern Lisp_Object find_hot_spot (Lisp_Object, int, int);
extern void handle_tool_bar_click (struct frame *,
- int, int, int, int);
+ int, int, bool, int);
extern void expose_frame (struct frame *, int, int, int, int);
-extern int x_intersect_rectangles (XRectangle *, XRectangle *,
- XRectangle *);
+extern bool x_intersect_rectangles (XRectangle *, XRectangle *, XRectangle *);
#endif /* HAVE_WINDOW_SYSTEM */
extern void note_mouse_highlight (struct frame *, int, int);
extern void x_clear_window_mouse_face (struct window *);
extern void cancel_mouse_face (struct frame *);
-extern int clear_mouse_face (Mouse_HLInfo *);
+extern bool clear_mouse_face (Mouse_HLInfo *);
extern bool cursor_in_mouse_face_p (struct window *w);
extern void tty_draw_row_with_mouse_face (struct window *, struct glyph_row *,
int, int, enum draw_glyphs_face);
-extern void display_tty_menu_item (const char *, int, int, int, int, int);
+extern void display_tty_menu_item (const char *, int, int, int, int, bool);
/* Flags passed to try_window. */
#define TRY_WINDOW_CHECK_MARGINS (1 << 0)
#ifdef HAVE_WINDOW_SYSTEM
void prepare_face_for_display (struct frame *, struct face *);
#endif
-int lookup_named_face (struct frame *, Lisp_Object, int);
+int lookup_named_face (struct frame *, Lisp_Object, bool);
int lookup_basic_face (struct frame *, int);
int smaller_face (struct frame *, int, int);
int face_with_height (struct frame *, int, int);
-int lookup_derived_face (struct frame *, Lisp_Object, int, int);
+int lookup_derived_face (struct frame *, Lisp_Object, int, bool);
void init_frame_faces (struct frame *);
void free_frame_faces (struct frame *);
void recompute_basic_faces (struct frame *);
-int face_at_buffer_position (struct window *w, ptrdiff_t pos,
- ptrdiff_t *endptr, ptrdiff_t limit,
- int mouse, int base_face_id);
-int face_for_overlay_string (struct window *w, ptrdiff_t pos,
- ptrdiff_t *endptr, ptrdiff_t limit,
- int mouse, Lisp_Object overlay);
-int face_at_string_position (struct window *w, Lisp_Object string,
- ptrdiff_t pos, ptrdiff_t bufpos,
- ptrdiff_t *endptr, enum face_id, int mouse);
+int face_at_buffer_position (struct window *, ptrdiff_t, ptrdiff_t *, ptrdiff_t,
+ bool, int);
+int face_for_overlay_string (struct window *, ptrdiff_t, ptrdiff_t *, ptrdiff_t,
+ bool, Lisp_Object);
+int face_at_string_position (struct window *, Lisp_Object, ptrdiff_t, ptrdiff_t,
+ ptrdiff_t *, enum face_id, bool);
int merge_faces (struct frame *, Lisp_Object, int, int);
int compute_char_face (struct frame *, int, Lisp_Object);
void free_all_realized_faces (Lisp_Object);
-extern Lisp_Object Qforeground_color, Qbackground_color;
extern char unspecified_fg[], unspecified_bg[];
/* Defined in xfns.c. */
void change_frame_size (struct frame *, int, int, bool, bool, bool, bool);
void init_display (void);
void syms_of_display (void);
-extern Lisp_Object Qredisplay_dont_pause;
extern void spec_glyph_lookup_face (struct window *, GLYPH *);
extern void fill_up_frame_row_with_spaces (struct glyph_row *, int);