st/st.h

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/* See LICENSE for license details. */
#include <stdint.h>
Reworking sixel implementation based on veltza's implementation (#117) * sixel: remove black bars from sixel images When the images don't fully cover the text cells, black bars are added to them. This fix removes those bars, but if you need the old behavior, you can restore it by setting 'sixelremovebars' to zero in config.h * sixel: fix a potential memory leak * sixel: improve behavior with text reflow * sixel: prevent animated gifs from choking the terminal Animated gifs constantly spawn new images that eventually choke the terminal because the old animation frames are kept in the image buffer. This fix removes overlapping images from the image buffer and prevents them from piling up. * sixel: add zooming and clipping * sixel: copying bulk of changes * sixel: move sixel_parser_parse() and add missing sequences and blocks (#113) - Move sixel_parser_parse() from tputc() to twrite() - Add missing 8452, DECSDM, XTSMGRAPHICS and XTWINOPS sequences - Add more conditional blocks for the scrollback and sync patches - Remove unused reflow_y from ImageList. It is only used for the scrollback-reflow patch in st-sx. * sixel: update vtiden to VT200 family * sixel: fix scrolling issues inside tmux (#114) tmux is using the scrolling region and sequence to clear the screen below the shell prompt. This peculiar behavior caused the tscrollup() function to be called, which always scrolled the images regardless of whether they were inside the region or not. So the images moved out of place whenever the bottom of the screen was cleared. This fix checks that the images are inside the region before scrolling them. * sixel: prevent images from being deleted when resizing (#115) This fixes resizing issues outside of tmux not inside. * Rewriting tresize logic based on veltza's proposed implementation in PR #115 * tresize: correction for tscrollup call when scrollback patch is used --------- Co-authored-by: veltza <106755522+veltza@users.noreply.github.com>
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#include <time.h>
#include <sys/types.h>
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#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xft/Xft.h>
#include <X11/XKBlib.h>
#include "patches.h"
/* macros */
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a) / sizeof(a)[0])
#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d))
#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
#if LIGATURES_PATCH
#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) != ((b).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) || \
(a).fg != (b).fg || \
(a).bg != (b).bg)
#else
#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \
(a).bg != (b).bg)
#endif // LIGATURES_PATCH
#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \
(t1.tv_nsec-t2.tv_nsec)/1E6)
#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
#define IS_TRUECOL(x) (1 << 24 & (x))
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#if SCROLLBACK_PATCH || REFLOW_PATCH
#define HISTSIZE 2000
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#endif // SCROLLBACK_PATCH | REFLOW_PATCH
enum glyph_attribute {
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ATTR_NULL = 0,
ATTR_SET = 1 << 0,
ATTR_BOLD = 1 << 1,
ATTR_FAINT = 1 << 2,
ATTR_ITALIC = 1 << 3,
ATTR_UNDERLINE = 1 << 4,
ATTR_BLINK = 1 << 5,
ATTR_REVERSE = 1 << 6,
ATTR_INVISIBLE = 1 << 7,
ATTR_STRUCK = 1 << 8,
ATTR_WRAP = 1 << 9,
ATTR_WIDE = 1 << 10,
ATTR_WDUMMY = 1 << 11,
#if SELECTION_COLORS_PATCH
ATTR_SELECTED = 1 << 12,
#endif // SELECTION_COLORS_PATCH | REFLOW_PATCH
#if BOXDRAW_PATCH
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ATTR_BOXDRAW = 1 << 13,
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#endif // BOXDRAW_PATCH
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#if UNDERCURL_PATCH
ATTR_DIRTYUNDERLINE = 1 << 14,
#endif // UNDERCURL_PATCH
#if LIGATURES_PATCH
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ATTR_LIGA = 1 << 15,
#endif // LIGATURES_PATCH
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#if SIXEL_PATCH
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ATTR_SIXEL = 1 << 16,
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#endif // SIXEL_PATCH
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#if KEYBOARDSELECT_PATCH && REFLOW_PATCH
ATTR_HIGHLIGHT = 1 << 17,
#endif // KEYBOARDSELECT_PATCH
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
};
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#if SIXEL_PATCH
typedef struct _ImageList {
struct _ImageList *next, *prev;
unsigned char *pixels;
void *pixmap;
int width;
int height;
int x;
int y;
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#if REFLOW_PATCH
int reflow_y;
#endif // REFLOW_PATCH
Reworking sixel implementation based on veltza's implementation (#117) * sixel: remove black bars from sixel images When the images don't fully cover the text cells, black bars are added to them. This fix removes those bars, but if you need the old behavior, you can restore it by setting 'sixelremovebars' to zero in config.h * sixel: fix a potential memory leak * sixel: improve behavior with text reflow * sixel: prevent animated gifs from choking the terminal Animated gifs constantly spawn new images that eventually choke the terminal because the old animation frames are kept in the image buffer. This fix removes overlapping images from the image buffer and prevents them from piling up. * sixel: add zooming and clipping * sixel: copying bulk of changes * sixel: move sixel_parser_parse() and add missing sequences and blocks (#113) - Move sixel_parser_parse() from tputc() to twrite() - Add missing 8452, DECSDM, XTSMGRAPHICS and XTWINOPS sequences - Add more conditional blocks for the scrollback and sync patches - Remove unused reflow_y from ImageList. It is only used for the scrollback-reflow patch in st-sx. * sixel: update vtiden to VT200 family * sixel: fix scrolling issues inside tmux (#114) tmux is using the scrolling region and sequence to clear the screen below the shell prompt. This peculiar behavior caused the tscrollup() function to be called, which always scrolled the images regardless of whether they were inside the region or not. So the images moved out of place whenever the bottom of the screen was cleared. This fix checks that the images are inside the region before scrolling them. * sixel: prevent images from being deleted when resizing (#115) This fixes resizing issues outside of tmux not inside. * Rewriting tresize logic based on veltza's proposed implementation in PR #115 * tresize: correction for tscrollup call when scrollback patch is used --------- Co-authored-by: veltza <106755522+veltza@users.noreply.github.com>
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int cols;
int cw;
int ch;
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} ImageList;
#endif // SIXEL_PATCH
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#if WIDE_GLYPHS_PATCH
enum drawing_mode {
DRAW_NONE = 0,
DRAW_BG = 1 << 0,
DRAW_FG = 1 << 1,
};
#endif // WIDE_GLYPHS_PATCH
/* Used to control which screen(s) keybindings and mouse shortcuts apply to. */
enum screen {
S_PRI = -1, /* primary screen */
S_ALL = 0, /* both primary and alt screen */
S_ALT = 1 /* alternate screen */
};
enum selection_mode {
SEL_IDLE = 0,
SEL_EMPTY = 1,
SEL_READY = 2
};
enum selection_type {
SEL_REGULAR = 1,
SEL_RECTANGULAR = 2
};
enum selection_snap {
SNAP_WORD = 1,
SNAP_LINE = 2
};
typedef unsigned char uchar;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef unsigned short ushort;
typedef uint_least32_t Rune;
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typedef XftDraw *Draw;
typedef XftColor Color;
typedef XftGlyphFontSpec GlyphFontSpec;
#define Glyph Glyph_
typedef struct {
Rune u; /* character code */
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uint32_t mode; /* attribute flags */
uint32_t fg; /* foreground */
uint32_t bg; /* background */
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#if UNDERCURL_PATCH
int ustyle; /* underline style */
int ucolor[3]; /* underline color */
#endif // UNDERCURL_PATCH
} Glyph;
typedef Glyph *Line;
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#if LIGATURES_PATCH
typedef struct {
int ox;
int charlen;
int numspecs;
Glyph base;
} GlyphFontSeq;
#endif // LIGATURES_PATCH
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typedef struct {
Glyph attr; /* current char attributes */
int x;
int y;
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char state;
} TCursor;
/* Internal representation of the screen */
typedef struct {
int row; /* nb row */
int col; /* nb col */
#if COLUMNS_PATCH
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int maxcol;
#endif // COLUMNS_PATCH
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Line *line; /* screen */
Line *alt; /* alternate screen */
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#if REFLOW_PATCH
Line hist[HISTSIZE]; /* history buffer */
int histi; /* history index */
int histf; /* nb history available */
int scr; /* scroll back */
int wrapcwidth[2]; /* used in updating WRAPNEXT when resizing */
#elif SCROLLBACK_PATCH
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Line hist[HISTSIZE]; /* history buffer */
int histi; /* history index */
int histn; /* number of history entries */
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int scr; /* scroll back */
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#endif // SCROLLBACK_PATCH | REFLOW_PATCH
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int *dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int ocx; /* old cursor col */
int ocy; /* old cursor row */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
int mode; /* terminal mode flags */
int esc; /* escape state flags */
char trantbl[4]; /* charset table translation */
int charset; /* current charset */
int icharset; /* selected charset for sequence */
int *tabs;
#if SIXEL_PATCH
ImageList *images; /* sixel images */
ImageList *images_alt; /* sixel images for alternate screen */
#endif // SIXEL_PATCH
Rune lastc; /* last printed char outside of sequence, 0 if control */
} Term;
typedef union {
int i;
uint ui;
float f;
const void *v;
const char *s;
} Arg;
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/* Purely graphic info */
typedef struct {
int tw, th; /* tty width and height */
int w, h; /* window width and height */
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#if BACKGROUND_IMAGE_PATCH
int x, y; /* window location */
#endif // BACKGROUND_IMAGE_PATCH
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#if ANYSIZE_PATCH
int hborderpx, vborderpx;
#endif // ANYSIZE_PATCH
int ch; /* char height */
int cw; /* char width */
#if VERTCENTER_PATCH
int cyo; /* char y offset */
#endif // VERTCENTER_PATCH
int mode; /* window state/mode flags */
int cursor; /* cursor style */
} TermWindow;
typedef struct {
Display *dpy;
Colormap cmap;
Window win;
Drawable buf;
GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
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#if LIGATURES_PATCH
GlyphFontSeq *specseq;
#endif // LIGATURES_PATCH
Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid;
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#if FULLSCREEN_PATCH
Atom netwmstate, netwmfullscreen;
#endif // FULLSCREEN_PATCH
#if NETWMICON_PATCH || NETWMICON_LEGACY_PATCH || NETWMICON_FF_PATCH
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Atom netwmicon;
#endif // NETWMICON_PATCH
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struct {
XIM xim;
XIC xic;
XPoint spot;
XVaNestedList spotlist;
} ime;
Draw draw;
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#if BACKGROUND_IMAGE_PATCH
GC bggc; /* Graphics Context for background */
#endif // BACKGROUND_IMAGE_PATCH
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Visual *vis;
XSetWindowAttributes attrs;
#if HIDECURSOR_PATCH || OPENURLONCLICK_PATCH
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/* Here, we use the term *pointer* to differentiate the cursor
* one sees when hovering the mouse over the terminal from, e.g.,
* a green rectangle where text would be entered. */
Cursor vpointer, bpointer; /* visible and hidden pointers */
int pointerisvisible;
#endif // HIDECURSOR_PATCH
#if OPENURLONCLICK_PATCH
Cursor upointer;
#endif // OPENURLONCLICK_PATCH
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int scr;
int isfixed; /* is fixed geometry? */
#if ALPHA_PATCH
int depth; /* bit depth */
#endif // ALPHA_PATCH
int l, t; /* left and top offset */
int gm; /* geometry mask */
} XWindow;
typedef struct {
Atom xtarget;
char *primary, *clipboard;
struct timespec tclick1;
struct timespec tclick2;
} XSelection;
/* types used in config.h */
typedef struct {
uint mod;
KeySym keysym;
void (*func)(const Arg *);
const Arg arg;
int screen;
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} Shortcut;
typedef struct {
uint mod;
uint button;
void (*func)(const Arg *);
const Arg arg;
uint release;
int screen;
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} MouseShortcut;
typedef struct {
KeySym k;
uint mask;
char *s;
/* three-valued logic variables: 0 indifferent, 1 on, -1 off */
signed char appkey; /* application keypad */
signed char appcursor; /* application cursor */
} Key;
/* Font structure */
#define Font Font_
typedef struct {
int height;
int width;
int ascent;
int descent;
int badslant;
int badweight;
short lbearing;
short rbearing;
XftFont *match;
FcFontSet *set;
FcPattern *pattern;
} Font;
/* Drawing Context */
typedef struct {
Color *col;
size_t collen;
Font font, bfont, ifont, ibfont;
GC gc;
} DC;
void die(const char *, ...);
void redraw(void);
void draw(void);
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void drawregion(int, int, int, int);
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void tfulldirt(void);
void printscreen(const Arg *);
void printsel(const Arg *);
void sendbreak(const Arg *);
void toggleprinter(const Arg *);
int tattrset(int);
int tisaltscr(void);
void tnew(int, int);
void tresize(int, int);
void tsetdirtattr(int);
void ttyhangup(void);
int ttynew(const char *, char *, const char *, char **);
size_t ttyread(void);
void ttyresize(int, int);
void ttywrite(const char *, size_t, int);
void resettitle(void);
void selclear(void);
void selinit(void);
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void selremove(void);
void selstart(int, int, int);
void selextend(int, int, int, int);
int selected(int, int);
char *getsel(void);
size_t utf8encode(Rune, char *);
void *xmalloc(size_t);
void *xrealloc(void *, size_t);
char *xstrdup(const char *);
int xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b);
#if BOXDRAW_PATCH
int isboxdraw(Rune);
ushort boxdrawindex(const Glyph *);
#ifdef XFT_VERSION
/* only exposed to x.c, otherwise we'll need Xft.h for the types */
void boxdraw_xinit(Display *, Colormap, XftDraw *, Visual *);
void drawboxes(int, int, int, int, XftColor *, XftColor *, const XftGlyphFontSpec *, int);
#endif // XFT_VERSION
#endif // BOXDRAW_PATCH
/* config.h globals */
extern char *utmp;
extern char *scroll;
extern char *stty_args;
extern char *vtiden;
extern wchar_t *worddelimiters;
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#if KEYBOARDSELECT_PATCH && REFLOW_PATCH
extern wchar_t *kbds_sdelim;
extern wchar_t *kbds_ldelim;
#endif // KEYBOARDSELECT_PATCH
extern int allowaltscreen;
extern int allowwindowops;
extern char *termname;
extern unsigned int tabspaces;
extern unsigned int defaultfg;
extern unsigned int defaultbg;
extern unsigned int defaultcs;
#if EXTERNALPIPE_PATCH
extern int extpipeactive;
#endif // EXTERNALPIPE_PATCH
#if BOXDRAW_PATCH
extern const int boxdraw, boxdraw_bold, boxdraw_braille;
#endif // BOXDRAW_PATCH
#if ALPHA_PATCH
extern float alpha;
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#if ALPHA_FOCUS_HIGHLIGHT_PATCH
extern float alphaUnfocused;
#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH
#endif // ALPHA_PATCH
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extern DC dc;
extern XWindow xw;
extern XSelection xsel;
extern TermWindow win;
extern Term term;