/* Synched up with: Not in FSF. */
-#ifndef _XEMACS_REDISPLAY_H_
-#define _XEMACS_REDISPLAY_H_
+#ifndef INCLUDED_redisplay_h_
+#define INCLUDED_redisplay_h_
+
+#include "character.h"
/* Redisplay DASSERT types */
#define DB_DISP_POS 1
but control characters have two -- a ^ and a letter -- and other
non-printing characters (those displayed in octal) have four. */
+/* WARNING! In compare_runes (one of the most heavily used functions)
+ two runes are compared. So please be careful with changes to this
+ structure. See comments in compare_runes.
+
+ #### This should really be made smaller.
+*/
+
typedef struct rune rune;
struct rune
{
each of the face properties in this
particular window. */
- short xpos; /* horizontal starting position in pixels */
- short width; /* pixel width of rune */
-
-
Bufpos bufpos; /* buffer position this rune is displaying;
for the modeline, the value here is a
Charcount, but who's looking? */
/* #### Chuck, what does it mean for a rune
to cover a range of pos? I don't get
this. */
- unsigned int cursor_type :3; /* is this rune covered by the cursor? */
- unsigned int type :3; /* type of rune object */
+ /* #### This isn't used as an rvalue anywhere!
+ remove! */
+
+
+ short xpos; /* horizontal starting position in pixels */
+ short width; /* pixel width of rune */
+
+
+ unsigned char cursor_type; /* is this rune covered by the cursor? */
+ unsigned char type; /* type of rune object */
+ /* We used to do bitfields here, but if I
+ (JV) count correctly that doesn't matter
+ for the size of the structure. All the bit
+ fiddling _does_ slow down redisplay by
+ about 10%. So don't do that */
union /* Information specific to the type of rune */
{
+ /* #### Glyphs are rare. Is it really necessary to waste 8 bytes on every
+ rune for that?! */
/* DGLYPH */
struct
{
If this is a rune in the modeline
then this might be nil. */
+ int ascent; /* Ascent of this glyph, in pixels. */
+ int descent; /* Descent of this glyph, in pixels. */
+ int yoffset; /* Offset from line top to reach glyph top */
int xoffset; /* Number of pixels that need to be
chopped off the left of the glyph.
This has the effect of shifting the
} dglyph;
/* CHAR */
- struct
- {
- Emchar ch; /* Cbaracter of this rune. */
- } chr;
+ struct Charc cglyph; /* Character of this rune. */
/* HLINE */
struct
{
- int thickness; /* how thick to make hline */
- int yoffset; /* how far down from top of line to put top */
+ short thickness; /* how thick to make hline */
+ short yoffset; /* how far down from top of line to put top */
} hline;
} object; /* actual rune object */
};
Dynarr_declare (glyph_block);
} glyph_block_dynarr;
+/*************************************************************************/
+/* display lines */
+/*************************************************************************/
+
+/* Modeline commentary: IMO the modeline is handled very badly, we
+ special case virtually *everything* in the redisplay routines for
+ the modeline. The fact that dl->bufpos can be either a buffer
+ position or a char count highlights this. There is no abstraction at
+ all that I can find and it means that the code is made very ugly as
+ a result. Either we should treat the modeline *entirely* separately,
+ or we should abstract to something that applies equally well to the
+ modeline and to buffer text, the things are not enormously different
+ after all and handling them identically at some level would
+ eliminate some bugs that still exist (mainly to do with modeline
+ handling). This problem doesn't help trying to implement gutters
+ which are somewhere in between buffer text and modeline text.
+
+ Redisplay commentary: Everything in redisplay is tied very tightly
+ to the things that are being displayed, and the context,
+ e.g. buffers and windows. According to Chuck this is so that we can
+ get speed, which seems fine to me, however this usage is extended
+ too far down the redisplay routines IMO. At some level there should
+ be functions that know how to display strings with extents and
+ faces, regardless of buffer etc. After all the window system does
+ not care. <andy@xemacs.org> */
+
typedef struct display_line display_line;
struct display_line
{
pixel-row itself, I think. */
unsigned short clip; /* amount of bottom of line to clip
in pixels.*/
+ unsigned short top_clip; /* amount of top of line to clip
+ in pixels.*/
Bufpos bufpos; /* first buffer position on line */
Bufpos end_bufpos; /* last buffer position on line */
Charcount offset; /* adjustment to bufpos vals */
int cursor_elt; /* rune block of TEXT display
block cursor is at or -1 */
char used_prop_data; /* can't incrementally update if line
- used propogation data */
+ used propagation data */
layout_bounds bounds; /* line boundary positions */
char modeline; /* t if this line is a modeline */
+ char line_continuation; /* t if this line continues to
+ next display line. */
+
/* Dynamic array of display blocks */
display_block_dynarr *display_blocks;
/* Dynamic arrays of left and right glyph blocks */
glyph_block_dynarr *left_glyphs;
glyph_block_dynarr *right_glyphs;
+
+ face_index left_margin_findex;
+ face_index right_margin_findex;
+ face_index default_findex;
};
+#define DISPLAY_LINE_HEIGHT(dl) \
+(dl->ascent + dl->descent - (dl->clip + dl->top_clip))
+#define DISPLAY_LINE_YPOS(dl) \
+(dl->ypos - (dl->ascent - dl->top_clip))
+#define DISPLAY_LINE_YEND(dl) \
+((dl->ypos + dl->descent) - dl->clip)
+
typedef struct
{
Dynarr_declare (display_line);
} display_line_dynarr;
+/* The following two structures are used to represent an area to
+displayed and where to display it. Using these two structures all
+combinations of clipping and position can be accommodated. */
+
+/* This represents an area to be displayed into. */
+typedef struct display_box display_box;
+struct display_box
+{
+ int xpos; /* absolute horizontal position of area */
+ int ypos; /* absolute vertical position of area */
+ int width, height;
+};
+
+/* This represents the area from a glyph to be displayed. */
+typedef struct display_glyph_area display_glyph_area;
+struct display_glyph_area
+{
+ int xoffset; /* horizontal offset of the glyph, +ve means
+ display the glyph with x offset by xoffset,
+ -ve means display starting xoffset into the
+ glyph. */
+ int yoffset; /* vertical offset of the glyph, +ve means
+ display the glyph with y offset by yoffset,
+ -ve means display starting xoffset into the
+ glyph. */
+ int width, height; /* width and height of glyph to display. */
+};
+
/* It could be argued that the following two structs belong in
extents.h, but they're only used by redisplay and it simplifies
the header files to put them here. */
unsigned int invisible_ellipses_already_displayed:1;
};
+#define EDGE_TOP 1
+#define EDGE_LEFT 2
+#define EDGE_BOTTOM 4
+#define EDGE_RIGHT 8
+#define EDGE_ALL (EDGE_TOP | EDGE_LEFT | EDGE_BOTTOM | EDGE_RIGHT)
+
\f
/*************************************************************************/
/* change flags */
If any of these flags are set, redisplay will look more carefully
to see if anything has really changed. */
-/* non-nil if the contents of a buffer have changed since the last time
- redisplay completed */
+/* Nonzero if the contents of a buffer have changed since the last time
+ redisplay completed. */
extern int buffers_changed;
extern int buffers_changed_set;
/* Nonzero if head_clip or tail_clip of a buffer has changed
- since last redisplay that finished */
+ since last redisplay that finished. */
extern int clip_changed;
extern int clip_changed_set;
-/* non-nil if any extent has changed since the last time redisplay completed */
+/* Nonzero if any extent has changed since the last time redisplay completed. */
extern int extents_changed;
extern int extents_changed_set;
-/* non-nil if any face has changed since the last time redisplay completed */
+/* Nonzero if any face has changed since the last time redisplay completed. */
extern int faces_changed;
-/* Nonzero means one or more frames have been marked as garbaged */
+/* Nonzero means one or more frames have been marked as garbaged. */
extern int frame_changed;
/* True if any of the builtin display glyphs (continuation,
extern int glyphs_changed;
extern int glyphs_changed_set;
+/* True if any displayed subwindow is in need of updating
+ somewhere. */
+extern int subwindows_changed;
+extern int subwindows_changed_set;
+
+/* True if any displayed subwindow is in need of updating
+ somewhere. */
+extern int subwindows_state_changed;
+extern int subwindows_state_changed_set;
+
/* True if an icon is in need of updating somewhere. */
extern int icon_changed;
extern int icon_changed_set;
extern int menubar_changed;
extern int menubar_changed_set;
-/* true iff we should redraw the modelines on the next redisplay */
+/* True iff we should redraw the modelines on the next redisplay. */
extern int modeline_changed;
extern int modeline_changed_set;
-/* non-nil if point has changed in some buffer since the last time
- redisplay completed */
+/* Nonzero if point has changed in some buffer since the last time
+ redisplay completed. */
extern int point_changed;
extern int point_changed_set;
-/* non-nil if some frame has changed its size */
+/* Nonzero if some frame has changed its size. */
extern int size_changed;
-/* non-nil if some device has signaled that it wants to change size */
+/* Nonzero if some device has signaled that it wants to change size. */
extern int asynch_device_change_pending;
-/* non-nil if any toolbar has changed */
+/* Nonzero if some frame has changed the layout of internal elements
+ (gutters or toolbars). */
+extern int frame_layout_changed;
+
+/* Nonzero if any toolbar has changed. */
extern int toolbar_changed;
extern int toolbar_changed_set;
-/* non-nil if any window has changed since the last time redisplay completed */
+/* Nonzero if any gutter has changed. */
+extern int gutter_changed;
+extern int gutter_changed_set;
+
+/* Nonzero if any window has changed since the last time redisplay completed */
extern int windows_changed;
-/* non-nil if any frame's window structure has changed since the last
- time redisplay completed */
+/* Nonzero if any frame's window structure has changed since the last
+ time redisplay completed. */
extern int windows_structure_changed;
/* These macros can be relatively expensive. Since they are often
if each has already been called and don't bother doing most of the
work if it is currently set. */
-#define MARK_TYPE_CHANGED(object) do { \
- if (!object##_changed_set) { \
- Lisp_Object _devcons_, _concons_; \
- DEVICE_LOOP_NO_BREAK (_devcons_, _concons_) \
- { \
- Lisp_Object _frmcons_; \
- struct device *_d_ = XDEVICE (XCAR (_devcons_)); \
- DEVICE_FRAME_LOOP (_frmcons_, _d_) \
- { \
- struct frame *_f_ = XFRAME (XCAR (_frmcons_)); \
- _f_->object##_changed = 1; \
- _f_->modiff++; \
- } \
- _d_->object##_changed = 1; \
- } \
- object##_changed = 1; \
- object##_changed_set = 1; } \
+#define MARK_TYPE_CHANGED(object) do { \
+ if (!object##_changed_set) { \
+ Lisp_Object MTC_devcons, MTC_concons; \
+ DEVICE_LOOP_NO_BREAK (MTC_devcons, MTC_concons) \
+ { \
+ Lisp_Object MTC_frmcons; \
+ struct device *MTC_d = XDEVICE (XCAR (MTC_devcons)); \
+ DEVICE_FRAME_LOOP (MTC_frmcons, MTC_d) \
+ { \
+ struct frame *MTC_f = XFRAME (XCAR (MTC_frmcons)); \
+ MTC_f->object##_changed = 1; \
+ MTC_f->modiff++; \
+ } \
+ MTC_d->object##_changed = 1; \
+ } \
+ object##_changed = 1; \
+ object##_changed_set = 1; } \
} while (0)
#define MARK_BUFFERS_CHANGED MARK_TYPE_CHANGED (buffers)
#define MARK_MODELINE_CHANGED MARK_TYPE_CHANGED (modeline)
#define MARK_POINT_CHANGED MARK_TYPE_CHANGED (point)
#define MARK_TOOLBAR_CHANGED MARK_TYPE_CHANGED (toolbar)
+#define MARK_GUTTER_CHANGED MARK_TYPE_CHANGED (gutter)
#define MARK_GLYPHS_CHANGED MARK_TYPE_CHANGED (glyphs)
+#define MARK_SUBWINDOWS_CHANGED MARK_TYPE_CHANGED (subwindows)
+#define MARK_SUBWINDOWS_STATE_CHANGED MARK_TYPE_CHANGED (subwindows_state)
+
+
+#define CLASS_RESET_CHANGED_FLAGS(p) do { \
+ (p)->buffers_changed = 0; \
+ (p)->clip_changed = 0; \
+ (p)->extents_changed = 0; \
+ (p)->faces_changed = 0; \
+ (p)->frame_changed = 0; \
+ (p)->frame_layout_changed = 0; \
+ (p)->icon_changed = 0; \
+ (p)->menubar_changed = 0; \
+ (p)->modeline_changed = 0; \
+ (p)->point_changed = 0; \
+ (p)->toolbar_changed = 0; \
+ (p)->gutter_changed = 0; \
+ (p)->glyphs_changed = 0; \
+ (p)->subwindows_changed = 0; \
+ (p)->subwindows_state_changed = 0; \
+ (p)->windows_changed = 0; \
+ (p)->windows_structure_changed = 0; \
+} while (0)
+
+#define GLOBAL_RESET_CHANGED_FLAGS do { \
+ buffers_changed = 0; \
+ clip_changed = 0; \
+ extents_changed = 0; \
+ frame_changed = 0; \
+ frame_layout_changed = 0; \
+ icon_changed = 0; \
+ menubar_changed = 0; \
+ modeline_changed = 0; \
+ point_changed = 0; \
+ toolbar_changed = 0; \
+ gutter_changed = 0; \
+ glyphs_changed = 0; \
+ subwindows_changed = 0; \
+ subwindows_state_changed = 0; \
+ windows_changed = 0; \
+ windows_structure_changed = 0; \
+} while (0)
+
+#define CLASS_REDISPLAY_FLAGS_CHANGEDP(p) \
+ ( (p)->buffers_changed || \
+ (p)->clip_changed || \
+ (p)->extents_changed || \
+ (p)->faces_changed || \
+ (p)->frame_changed || \
+ (p)->frame_layout_changed || \
+ (p)->icon_changed || \
+ (p)->menubar_changed || \
+ (p)->modeline_changed || \
+ (p)->point_changed || \
+ (p)->toolbar_changed || \
+ (p)->gutter_changed || \
+ (p)->glyphs_changed || \
+ (p)->size_changed || \
+ (p)->subwindows_changed || \
+ (p)->subwindows_state_changed || \
+ (p)->windows_changed || \
+ (p)->windows_structure_changed )
+
+#define GLOBAL_REDISPLAY_FLAGS_CHANGEDP \
+ ( buffers_changed || \
+ clip_changed || \
+ extents_changed || \
+ faces_changed || \
+ frame_changed || \
+ frame_layout_changed || \
+ icon_changed || \
+ menubar_changed || \
+ modeline_changed || \
+ point_changed || \
+ toolbar_changed || \
+ gutter_changed || \
+ glyphs_changed || \
+ size_changed || \
+ subwindows_changed || \
+ subwindows_state_changed || \
+ windows_changed || \
+ windows_structure_changed )
+
/* Anytime a console, device or frame is added or deleted we need to reset
these flags. */
-#define RESET_CHANGED_SET_FLAGS \
- do { \
- buffers_changed_set = 0; \
- clip_changed_set = 0; \
- extents_changed_set = 0; \
- icon_changed_set = 0; \
- menubar_changed_set = 0; \
- modeline_changed_set = 0; \
- point_changed_set = 0; \
- toolbar_changed_set = 0; \
- glyphs_changed_set = 0; \
- } while (0)
+#define RESET_CHANGED_SET_FLAGS do { \
+ buffers_changed_set = 0; \
+ clip_changed_set = 0; \
+ extents_changed_set = 0; \
+ icon_changed_set = 0; \
+ menubar_changed_set = 0; \
+ modeline_changed_set = 0; \
+ point_changed_set = 0; \
+ toolbar_changed_set = 0; \
+ gutter_changed_set = 0; \
+ glyphs_changed_set = 0; \
+ subwindows_changed_set = 0; \
+ subwindows_state_changed_set = 0; \
+} while (0)
\f
/*************************************************************************/
/* redisplay global variables */
/*************************************************************************/
-/* redisplay structre used by various utility routines. */
+/* redisplay structure used by various utility routines. */
extern display_line_dynarr *cmotion_display_lines;
/* Nonzero means truncate lines in all windows less wide than the frame. */
where one page is used for Emacs and another for all else. */
extern int no_redraw_on_reenter;
-/* Nonzero means flash the frame instead of ringing the bell. */
-extern int visible_bell;
+/* Non-nil means flash the frame instead of ringing the bell. */
+extern Lisp_Object Vvisible_bell;
/* Thickness of shadow border around 3D modelines. */
extern Lisp_Object Vmodeline_shadow_thickness;
extern int display_arg;
/* Type of display specified. Defined in emacs.c. */
-extern char *display_use;
+extern const char *display_use;
/* Nonzero means reading single-character input with prompt
so put cursor on minibuffer after the prompt. */
extern Lisp_Object Qbar_cursor, Qcursor_in_echo_area, Vwindow_system;
+extern Lisp_Object Qtop_bottom;
+
\f
/*************************************************************************/
/* redisplay exported functions */
Bufbyte *nonreloc,
Lisp_Object reloc,
Bytecount offset, Bytecount len);
+int redisplay_frame (struct frame *f, int preemption_check);
void redisplay (void);
struct display_block *get_display_block_from_line (struct display_line *dl,
enum display_type type);
int window_half_pixpos (struct window *w);
void redisplay_echo_area (void);
void free_display_structs (struct window_mirror *mir);
-Bufbyte *generate_formatted_string (struct window *w, Lisp_Object format_str,
- Lisp_Object result_str, face_index findex,
- int type);
+void free_display_lines (display_line_dynarr *dla);
+void mark_redisplay_structs (display_line_dynarr *dla);
+void generate_displayable_area (struct window *w, Lisp_Object disp_string,
+ int xpos, int ypos, int width, int height,
+ display_line_dynarr* dl,
+ Bufpos start_pos, face_index default_face);
+/* `generate_title_string' in frame.c needs this */
+void generate_formatted_string_db (Lisp_Object format_str,
+ Lisp_Object result_str,
+ struct window *w,
+ struct display_line *dl,
+ struct display_block *db,
+ face_index findex,
+ int min_pixpos, int max_pixpos, int type);
int real_current_modeline_height (struct window *w);
int pixel_to_glyph_translation (struct frame *f, int x_coord,
int y_coord, int *col, int *row,
Lisp_Object *obj1, Lisp_Object *obj2);
void glyph_to_pixel_translation (struct window *w, int char_x,
int char_y, int *pix_x, int *pix_y);
-void mark_redisplay (void (*) (Lisp_Object));
+void mark_redisplay (void);
int point_in_line_start_cache (struct window *w, Bufpos point,
int min_past);
int point_would_be_visible (struct window *w, Bufpos startp,
int get_next_display_block (layout_bounds bounds,
display_block_dynarr *dba, int start_pos,
int *next_start);
+void redisplay_output_layout (Lisp_Object domain,
+ Lisp_Object image_instance,
+ struct display_box* db, struct display_glyph_area* dga,
+ face_index findex, int cursor_start, int cursor_width,
+ int cursor_height);
+void redisplay_output_subwindow (struct window *w,
+ Lisp_Object image_instance,
+ struct display_box* db, struct display_glyph_area* dga,
+ face_index findex, int cursor_start, int cursor_width,
+ int cursor_height);
+void redisplay_unmap_subwindows_maybe (struct frame* f, int x, int y, int width, int height);
+void redisplay_output_pixmap (struct window *w,
+ Lisp_Object image_instance,
+ struct display_box* db, struct display_glyph_area* dga,
+ face_index findex, int cursor_start, int cursor_width,
+ int cursor_height, int offset_bitmap);
+int redisplay_calculate_display_boxes (struct display_line *dl, int xpos,
+ int xoffset, int yoffset, int start_pixpos,
+ int width, struct display_box* dest,
+ struct display_glyph_area* src);
+int redisplay_normalize_glyph_area (struct display_box* dest,
+ struct display_glyph_area* glyphsrc);
+void redisplay_clear_to_window_end (struct window *w, int ypos1, int ypos2);
+void redisplay_clear_region (Lisp_Object window, face_index findex, int x,
+ int y, int width, int height);
+void redisplay_clear_top_of_window (struct window *w);
void redisplay_clear_bottom_of_window (struct window *w,
display_line_dynarr *ddla,
int min_start, int max_end);
void redisplay_update_line (struct window *w, int first_line,
int last_line, int update_values);
void redisplay_output_window (struct window *w);
+void bevel_modeline (struct window *w, struct display_line *dl);
int redisplay_move_cursor (struct window *w, Bufpos new_point,
int no_output_end);
void redisplay_redraw_cursor (struct frame *f, int run_begin_end_meths);
void output_display_line (struct window *w, display_line_dynarr *cdla,
display_line_dynarr *ddla, int line,
int force_start, int force_end);
+void sync_display_line_structs (struct window *w, int line, int do_blocks,
+ display_line_dynarr *cdla,
+ display_line_dynarr *ddla);
-#endif /* _XEMACS_REDISPLAY_H_ */
+#endif /* INCLUDED_redisplay_h_ */
projects / chise / xemacs-chise.git.1 / blobdiff