/* Interface definitions for display code.
-Copyright (C) 1985, 1993-1994, 1997-2015 Free Software Foundation, Inc.
+Copyright (C) 1985, 1993-1994, 1997-2016 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+the Free Software Foundation, either version 3 of the License, or (at
+your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
#ifdef HAVE_WINDOW_SYSTEM
# include <time.h>
+# include "fontset.h"
#endif
#ifndef HAVE_WINDOW_SYSTEM
IMAGE_GLYPH,
/* Glyph is a space of fractional width and/or height. */
- STRETCH_GLYPH
+ STRETCH_GLYPH,
+
+ /* Glyph is an external widget drawn by the GUI toolkit. */
+ XWIDGET_GLYPH
};
/* Image ID for image glyphs (type == IMAGE_GLYPH). */
int img_id;
+#ifdef HAVE_XWIDGETS
+ /* Xwidget reference (type == XWIDGET_GLYPH). */
+ struct xwidget *xwidget;
+#endif
+
/* Sub-structure for type == STRETCH_GLYPH. */
struct
{
/* Image, if any. */
struct image *img;
+ /* Xwidget. */
+ struct xwidget *xwidget;
+
/* Slice */
struct glyph_slice slice;
+ (FRAME_LINE_HEIGHT ((F)) > FONT_HEIGHT ((FONT)))) / 2 \
- (FONT_DESCENT (FRAME_FONT (F)) - FRAME_BASELINE_OFFSET (F)))
+/* A heuristic test for fonts that claim they need a preposterously
+ large vertical space. The heuristics is in the factor of 3. We
+ ignore the ascent and descent values reported by such fonts, and
+ instead go by the values reported for individual glyphs. */
+#define FONT_TOO_HIGH(ft) ((ft)->ascent + (ft)->descent > 3*(ft)->pixel_size)
+
\f
/***********************************************************************
Faces
bool_bf menu_face_changed_p : 1;
};
+/* Return a non-null pointer to the cached face with ID on frame F. */
+
+#define FACE_FROM_ID(F, ID) \
+ (eassert (UNSIGNED_CMP (ID, <, FRAME_FACE_CACHE (F)->used)), \
+ FRAME_FACE_CACHE (F)->faces_by_id[ID])
+
/* Return a pointer to the face with ID on frame F, or null if such a
face doesn't exist. */
-#define FACE_FROM_ID(F, ID) \
- (UNSIGNED_CMP (ID, <, FRAME_FACE_CACHE (F)->used) \
- ? FRAME_FACE_CACHE (F)->faces_by_id[ID] \
- : NULL)
+#define FACE_FROM_ID_OR_NULL(F, ID) \
+ (UNSIGNED_CMP (ID, <, FRAME_FACE_CACHE (F)->used) \
+ ? FRAME_FACE_CACHE (F)->faces_by_id[ID] \
+ : NULL)
+/* True if FACE is suitable for displaying ASCII characters. */
+INLINE bool
+FACE_SUITABLE_FOR_ASCII_CHAR_P (struct face *face)
+{
#ifdef HAVE_WINDOW_SYSTEM
-
-/* Non-zero if FACE is suitable for displaying character CHAR. */
-
-#define FACE_SUITABLE_FOR_ASCII_CHAR_P(FACE, CHAR) \
- ((FACE) == (FACE)->ascii_face)
+ return face == face->ascii_face;
+#else
+ return true;
+#endif
+}
/* 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. */
-
-#define FACE_FOR_CHAR(F, FACE, CHAR, POS, OBJECT) \
- face_for_char ((F), (FACE), (CHAR), (POS), (OBJECT))
-
-#else /* not HAVE_WINDOW_SYSTEM */
-
-#define FACE_SUITABLE_FOR_ASCII_CHAR_P(FACE, CHAR) true
-#define FACE_FOR_CHAR(F, FACE, CHAR, POS, OBJECT) ((FACE)->id)
-
-#endif /* not HAVE_WINDOW_SYSTEM */
+ FACE, but is suitable for displaying character CHARACTER at buffer or
+ string position POS. OBJECT is the string object, or nil for
+ buffer. This macro is only meaningful for multibyte character
+ CHAR. */
+INLINE int
+FACE_FOR_CHAR (struct frame *f, struct face *face, int character,
+ ptrdiff_t pos, Lisp_Object object)
+{
+#ifdef HAVE_WINDOW_SYSTEM
+ return face_for_char (f, face, character, pos, object);
+#else
+ return face->id;
+#endif
+}
/* Return true if G contains a valid character code. */
INLINE bool
resolving weak and neutral types */
bidi_type_t type_after_wn; /* bidi type after overrides and Wn */
bidi_type_t orig_type; /* original bidi type, as found in the buffer */
- char resolved_level; /* final resolved level of this character */
- char isolate_level; /* count of isolate initiators unmatched by PDI */
+ signed char resolved_level; /* final resolved level of this character */
+ signed char isolate_level; /* count of isolate initiators unmatched by PDI */
ptrdiff_t invalid_levels; /* how many PDFs to ignore */
ptrdiff_t invalid_isolates; /* how many PDIs to ignore */
struct bidi_saved_info prev; /* info about previous character */
IT_TRUNCATION,
/* Continuation glyphs. See the comment for IT_TRUNCATION. */
- IT_CONTINUATION
+ IT_CONTINUATION,
+
+ /* Xwidget. */
+ IT_XWIDGET
};
GET_FROM_C_STRING,
GET_FROM_IMAGE,
GET_FROM_STRETCH,
+ GET_FROM_XWIDGET,
NUM_IT_METHODS
};
struct it_slice slice;
ptrdiff_t image_id;
} image;
- /* method == GET_FROM_COMPOSITION */
- struct {
- Lisp_Object object;
- } comp;
/* method == GET_FROM_STRETCH */
struct {
Lisp_Object object;
} stretch;
+ /* method == GET_FROM_XWIDGET */
+ struct {
+ Lisp_Object object;
+ } xwidget;
} u;
/* Current text and display positions. */
/* If what == IT_IMAGE, the id of the image to display. */
ptrdiff_t image_id;
+ /* If what == IT_XWIDGET. */
+ struct xwidget *xwidget;
+
/* Values from `slice' property. */
struct it_slice slice;
/* Pixmaps of the image. */
Pixmap pixmap, mask;
+#ifdef USE_CAIRO
+ void *cr_data;
+ void *cr_data2;
+#endif
#ifdef HAVE_X_WINDOWS
/* X images of the image, corresponding to the above Pixmaps.
Non-NULL means it and its Pixmap counterpart may be out of sync
};
+/* A non-null pointer to the image with id ID on frame F. */
+
+#define IMAGE_FROM_ID(F, ID) \
+ (eassert (UNSIGNED_CMP (ID, <, FRAME_IMAGE_CACHE (F)->used)), \
+ FRAME_IMAGE_CACHE (F)->images[ID])
+
/* Value is a pointer to the image with id ID on frame F, or null if
no image with that id exists. */
-#define IMAGE_FROM_ID(F, ID) \
- (((ID) >= 0 && (ID) < (FRAME_IMAGE_CACHE (F)->used)) \
- ? FRAME_IMAGE_CACHE (F)->images[ID] \
- : NULL)
+#define IMAGE_OPT_FROM_ID(F, ID) \
+ (UNSIGNED_CMP (ID, <, FRAME_IMAGE_CACHE (F)->used) \
+ ? FRAME_IMAGE_CACHE (F)->images[ID] \
+ : NULL)
/* Size of bucket vector of image caches. Should be prime. */
struct bidi_string_data *);
extern void produce_stretch_glyph (struct it *);
extern int merge_glyphless_glyph_face (struct it *);
+extern void forget_escape_and_glyphless_faces (void);
+
+extern void get_font_ascent_descent (struct font *, int *, int *);
#ifdef HAVE_WINDOW_SYSTEM
void w32_init_fringe (struct redisplay_interface *);
void w32_reset_fringes (void);
#endif
+#ifdef USE_CAIRO
+void x_cr_init_fringe (struct redisplay_interface *);
+#endif
extern unsigned row_hash (struct glyph_row *);
bool tabs_safe_p (int);
void init_baud_rate (int);
void init_sigio (int);
-void ignore_sigio (void);
/* Defined in xfaces.c. */
void x_implicitly_set_name (struct frame *, Lisp_Object, Lisp_Object);
void x_change_tool_bar_height (struct frame *f, int);
-extern Lisp_Object tip_frame;
-extern Window tip_window;
extern frame_parm_handler x_frame_parm_handlers[];
extern void start_hourglass (void);