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This commit is contained in:
Michael Peters 2022-10-13 11:24:34 -07:00
parent 68d1ad9b54
commit c73d2e20ae
12 changed files with 4110 additions and 0 deletions
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.gitignore vendored Normal file
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*.o
st

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/* See LICENSE file for copyright and license details. */
/*
* appearance
*
* font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
*/
static char *font = "Hack Nerd Font:pixelsize=14:antialias=true:autohint=true";
static int borderpx = 2;
/*
* What program is execed by st depends of these precedence rules:
* 1: program passed with -e
* 2: scroll and/or utmp
* 3: SHELL environment variable
* 4: value of shell in /etc/passwd
* 5: value of shell in config.h
*/
static char *shell = "/bin/sh";
char *utmp = NULL;
/* scroll program: to enable use a string like "scroll" */
char *scroll = NULL;
char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
/* identification sequence returned in DA and DECID */
char *vtiden = "\033[?6c";
/* Kerning / character bounding-box multipliers */
static float cwscale = 1.0;
static float chscale = 1.0;
/*
* word delimiter string
*
* More advanced example: L" `'\"()[]{}"
*/
wchar_t *worddelimiters = L" ";
/* selection timeouts (in milliseconds) */
static unsigned int doubleclicktimeout = 300;
static unsigned int tripleclicktimeout = 600;
/* alt screens */
int allowaltscreen = 1;
/* allow certain non-interactive (insecure) window operations such as:
setting the clipboard text */
int allowwindowops = 0;
/*
* draw latency range in ms - from new content/keypress/etc until drawing.
* within this range, st draws when content stops arriving (idle). mostly it's
* near minlatency, but it waits longer for slow updates to avoid partial draw.
* low minlatency will tear/flicker more, as it can "detect" idle too early.
*/
static double minlatency = 8;
static double maxlatency = 33;
/*
* blinking timeout (set to 0 to disable blinking) for the terminal blinking
* attribute.
*/
static unsigned int blinktimeout = 800;
/*
* thickness of underline and bar cursors
*/
static unsigned int cursorthickness = 2;
/*
* bell volume. It must be a value between -100 and 100. Use 0 for disabling
* it
*/
static int bellvolume = 0;
/* default TERM value */
char *termname = "st-256color";
/*
* spaces per tab
*
* When you are changing this value, don't forget to adapt the »it« value in
* the st.info and appropriately install the st.info in the environment where
* you use this st version.
*
* it#$tabspaces,
*
* Secondly make sure your kernel is not expanding tabs. When running `stty
* -a` »tab0« should appear. You can tell the terminal to not expand tabs by
* running following command:
*
* stty tabs
*/
unsigned int tabspaces = 8;
/* Terminal colors (16 first used in escape sequence) */
static const char *colorname[] = {
/* 8 normal colors */
"black",
"red3",
"green3",
"yellow3",
"blue2",
"magenta3",
"cyan3",
"gray90",
/* 8 bright colors */
"gray50",
"red",
"green",
"yellow",
"#5c5cff",
"magenta",
"cyan",
"white",
[255] = 0,
/* more colors can be added after 255 to use with DefaultXX */
"#cccccc",
"#555555",
"gray90", /* default foreground colour */
"black", /* default background colour */
};
/*
* Default colors (colorname index)
* foreground, background, cursor, reverse cursor
*/
unsigned int defaultfg = 258;
unsigned int defaultbg = 259;
unsigned int defaultcs = 256;
static unsigned int defaultrcs = 257;
/*
* Default shape of cursor
* 2: Block ("█")
* 4: Underline ("_")
* 6: Bar ("|")
* 7: Snowman ("☃")
*/
static unsigned int cursorshape = 2;
/*
* Default columns and rows numbers
*/
static unsigned int cols = 80;
static unsigned int rows = 24;
/*
* Default colour and shape of the mouse cursor
*/
static unsigned int mouseshape = XC_xterm;
static unsigned int mousefg = 7;
static unsigned int mousebg = 0;
/*
* Color used to display font attributes when fontconfig selected a font which
* doesn't match the ones requested.
*/
static unsigned int defaultattr = 11;
/*
* Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
* Note that if you want to use ShiftMask with selmasks, set this to an other
* modifier, set to 0 to not use it.
*/
static uint forcemousemod = ShiftMask;
/*
* Internal mouse shortcuts.
* Beware that overloading Button1 will disable the selection.
*/
static MouseShortcut mshortcuts[] = {
/* mask button function argument release */
{ XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
{ ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
{ XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
{ ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} },
{ XK_ANY_MOD, Button5, ttysend, {.s = "\005"} },
};
/* Internal keyboard shortcuts. */
#define MODKEY Mod1Mask
#define TERMMOD (ControlMask|ShiftMask)
static Shortcut shortcuts[] = {
/* mask keysym function argument */
{ XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
{ ControlMask, XK_Print, toggleprinter, {.i = 0} },
{ ShiftMask, XK_Print, printscreen, {.i = 0} },
{ XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
{ TERMMOD, XK_Prior, zoom, {.f = +1} },
{ TERMMOD, XK_Next, zoom, {.f = -1} },
{ TERMMOD, XK_Home, zoomreset, {.f = 0} },
{ TERMMOD, XK_C, clipcopy, {.i = 0} },
{ TERMMOD, XK_V, clippaste, {.i = 0} },
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
};
/*
* Special keys (change & recompile st.info accordingly)
*
* Mask value:
* * Use XK_ANY_MOD to match the key no matter modifiers state
* * Use XK_NO_MOD to match the key alone (no modifiers)
* appkey value:
* * 0: no value
* * > 0: keypad application mode enabled
* * = 2: term.numlock = 1
* * < 0: keypad application mode disabled
* appcursor value:
* * 0: no value
* * > 0: cursor application mode enabled
* * < 0: cursor application mode disabled
*
* Be careful with the order of the definitions because st searches in
* this table sequentially, so any XK_ANY_MOD must be in the last
* position for a key.
*/
/*
* If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
* to be mapped below, add them to this array.
*/
static KeySym mappedkeys[] = { -1 };
/*
* State bits to ignore when matching key or button events. By default,
* numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
*/
static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
/*
* This is the huge key array which defines all compatibility to the Linux
* world. Please decide about changes wisely.
*/
static Key key[] = {
/* keysym mask string appkey appcursor */
{ XK_KP_Home, ShiftMask, "\033[2J", 0, -1},
{ XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1},
{ XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1},
{ XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1},
{ XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0},
{ XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1},
{ XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1},
{ XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0},
{ XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1},
{ XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1},
{ XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0},
{ XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1},
{ XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1},
{ XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0},
{ XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1},
{ XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1},
{ XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0},
{ XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
{ XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0},
{ XK_KP_End, ControlMask, "\033[J", -1, 0},
{ XK_KP_End, ControlMask, "\033[1;5F", +1, 0},
{ XK_KP_End, ShiftMask, "\033[K", -1, 0},
{ XK_KP_End, ShiftMask, "\033[1;2F", +1, 0},
{ XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0},
{ XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0},
{ XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0},
{ XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0},
{ XK_KP_Insert, ShiftMask, "\033[4l", -1, 0},
{ XK_KP_Insert, ControlMask, "\033[L", -1, 0},
{ XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0},
{ XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
{ XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
{ XK_KP_Delete, ControlMask, "\033[M", -1, 0},
{ XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
{ XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
{ XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
{ XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0},
{ XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
{ XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
{ XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
{ XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0},
{ XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0},
{ XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0},
{ XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0},
{ XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0},
{ XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0},
{ XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0},
{ XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0},
{ XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0},
{ XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0},
{ XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0},
{ XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0},
{ XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0},
{ XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0},
{ XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0},
{ XK_Up, ShiftMask, "\033[1;2A", 0, 0},
{ XK_Up, Mod1Mask, "\033[1;3A", 0, 0},
{ XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0},
{ XK_Up, ControlMask, "\033[1;5A", 0, 0},
{ XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0},
{ XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0},
{ XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0},
{ XK_Up, XK_ANY_MOD, "\033[A", 0, -1},
{ XK_Up, XK_ANY_MOD, "\033OA", 0, +1},
{ XK_Down, ShiftMask, "\033[1;2B", 0, 0},
{ XK_Down, Mod1Mask, "\033[1;3B", 0, 0},
{ XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0},
{ XK_Down, ControlMask, "\033[1;5B", 0, 0},
{ XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0},
{ XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0},
{ XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0},
{ XK_Down, XK_ANY_MOD, "\033[B", 0, -1},
{ XK_Down, XK_ANY_MOD, "\033OB", 0, +1},
{ XK_Left, ShiftMask, "\033[1;2D", 0, 0},
{ XK_Left, Mod1Mask, "\033[1;3D", 0, 0},
{ XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0},
{ XK_Left, ControlMask, "\033[1;5D", 0, 0},
{ XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0},
{ XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0},
{ XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0},
{ XK_Left, XK_ANY_MOD, "\033[D", 0, -1},
{ XK_Left, XK_ANY_MOD, "\033OD", 0, +1},
{ XK_Right, ShiftMask, "\033[1;2C", 0, 0},
{ XK_Right, Mod1Mask, "\033[1;3C", 0, 0},
{ XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0},
{ XK_Right, ControlMask, "\033[1;5C", 0, 0},
{ XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0},
{ XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0},
{ XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0},
{ XK_Right, XK_ANY_MOD, "\033[C", 0, -1},
{ XK_Right, XK_ANY_MOD, "\033OC", 0, +1},
{ XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0},
{ XK_Return, Mod1Mask, "\033\r", 0, 0},
{ XK_Return, XK_ANY_MOD, "\r", 0, 0},
{ XK_Insert, ShiftMask, "\033[4l", -1, 0},
{ XK_Insert, ShiftMask, "\033[2;2~", +1, 0},
{ XK_Insert, ControlMask, "\033[L", -1, 0},
{ XK_Insert, ControlMask, "\033[2;5~", +1, 0},
{ XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
{ XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
{ XK_Delete, ControlMask, "\033[M", -1, 0},
{ XK_Delete, ControlMask, "\033[3;5~", +1, 0},
{ XK_Delete, ShiftMask, "\033[2K", -1, 0},
{ XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
{ XK_Delete, XK_ANY_MOD, "\033[P", -1, 0},
{ XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
{ XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
{ XK_BackSpace, Mod1Mask, "\033\177", 0, 0},
{ XK_Home, ShiftMask, "\033[2J", 0, -1},
{ XK_Home, ShiftMask, "\033[1;2H", 0, +1},
{ XK_Home, XK_ANY_MOD, "\033[H", 0, -1},
{ XK_Home, XK_ANY_MOD, "\033[1~", 0, +1},
{ XK_End, ControlMask, "\033[J", -1, 0},
{ XK_End, ControlMask, "\033[1;5F", +1, 0},
{ XK_End, ShiftMask, "\033[K", -1, 0},
{ XK_End, ShiftMask, "\033[1;2F", +1, 0},
{ XK_End, XK_ANY_MOD, "\033[4~", 0, 0},
{ XK_Prior, ControlMask, "\033[5;5~", 0, 0},
{ XK_Prior, ShiftMask, "\033[5;2~", 0, 0},
{ XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
{ XK_Next, ControlMask, "\033[6;5~", 0, 0},
{ XK_Next, ShiftMask, "\033[6;2~", 0, 0},
{ XK_Next, XK_ANY_MOD, "\033[6~", 0, 0},
{ XK_F1, XK_NO_MOD, "\033OP" , 0, 0},
{ XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0},
{ XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0},
{ XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0},
{ XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0},
{ XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0},
{ XK_F2, XK_NO_MOD, "\033OQ" , 0, 0},
{ XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0},
{ XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0},
{ XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0},
{ XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0},
{ XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0},
{ XK_F3, XK_NO_MOD, "\033OR" , 0, 0},
{ XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0},
{ XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0},
{ XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0},
{ XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0},
{ XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0},
{ XK_F4, XK_NO_MOD, "\033OS" , 0, 0},
{ XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0},
{ XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0},
{ XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0},
{ XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0},
{ XK_F5, XK_NO_MOD, "\033[15~", 0, 0},
{ XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0},
{ XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0},
{ XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0},
{ XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0},
{ XK_F6, XK_NO_MOD, "\033[17~", 0, 0},
{ XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0},
{ XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0},
{ XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0},
{ XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0},
{ XK_F7, XK_NO_MOD, "\033[18~", 0, 0},
{ XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0},
{ XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0},
{ XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0},
{ XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0},
{ XK_F8, XK_NO_MOD, "\033[19~", 0, 0},
{ XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0},
{ XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0},
{ XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0},
{ XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0},
{ XK_F9, XK_NO_MOD, "\033[20~", 0, 0},
{ XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0},
{ XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0},
{ XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0},
{ XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0},
{ XK_F10, XK_NO_MOD, "\033[21~", 0, 0},
{ XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0},
{ XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0},
{ XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0},
{ XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0},
{ XK_F11, XK_NO_MOD, "\033[23~", 0, 0},
{ XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0},
{ XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0},
{ XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0},
{ XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0},
{ XK_F12, XK_NO_MOD, "\033[24~", 0, 0},
{ XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0},
{ XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0},
{ XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0},
{ XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0},
{ XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0},
{ XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0},
{ XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0},
{ XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0},
{ XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0},
{ XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0},
{ XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0},
{ XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0},
{ XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0},
{ XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0},
{ XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0},
{ XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0},
{ XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0},
{ XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0},
{ XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0},
{ XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0},
{ XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0},
{ XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0},
{ XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0},
{ XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0},
{ XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0},
{ XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0},
{ XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0},
};
/*
* Selection types' masks.
* Use the same masks as usual.
* Button1Mask is always unset, to make masks match between ButtonPress.
* ButtonRelease and MotionNotify.
* If no match is found, regular selection is used.
*/
static uint selmasks[] = {
[SEL_RECTANGULAR] = Mod1Mask,
};
/*
* Printable characters in ASCII, used to estimate the advance width
* of single wide characters.
*/
static char ascii_printable[] =
" !\"#$%&'()*+,-./0123456789:;<=>?"
"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
"`abcdefghijklmnopqrstuvwxyz{|}~";

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diff --git a/config.def.h b/config.def.h
index 91ab8ca..6af616e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -93,6 +93,9 @@ char *termname = "st-256color";
*/
unsigned int tabspaces = 8;
+/* bg opacity */
+float alpha = 0.8;
+
/* Terminal colors (16 first used in escape sequence) */
static const char *colorname[] = {
/* 8 normal colors */
diff --git a/config.mk b/config.mk
index 4c4c5d5..0114bad 100644
--- a/config.mk
+++ b/config.mk
@@ -16,7 +16,7 @@ PKG_CONFIG = pkg-config
INCS = -I$(X11INC) \
`$(PKG_CONFIG) --cflags fontconfig` \
`$(PKG_CONFIG) --cflags freetype2`
-LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
+LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\
`$(PKG_CONFIG) --libs fontconfig` \
`$(PKG_CONFIG) --libs freetype2`
diff --git a/st.h b/st.h
index 519b9bd..8bb533d 100644
--- a/st.h
+++ b/st.h
@@ -126,3 +126,4 @@ extern unsigned int tabspaces;
extern unsigned int defaultfg;
extern unsigned int defaultbg;
extern unsigned int defaultcs;
+extern float alpha;
diff --git a/x.c b/x.c
index 8a16faa..ddf4178 100644
--- a/x.c
+++ b/x.c
@@ -105,6 +105,7 @@ typedef struct {
XSetWindowAttributes attrs;
int scr;
int isfixed; /* is fixed geometry? */
+ int depth; /* bit depth */
int l, t; /* left and top offset */
int gm; /* geometry mask */
} XWindow;
@@ -243,6 +244,7 @@ static char *usedfont = NULL;
static double usedfontsize = 0;
static double defaultfontsize = 0;
+static char *opt_alpha = NULL;
static char *opt_class = NULL;
static char **opt_cmd = NULL;
static char *opt_embed = NULL;
@@ -736,7 +738,7 @@ xresize(int col, int row)
XFreePixmap(xw.dpy, xw.buf);
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
- DefaultDepth(xw.dpy, xw.scr));
+ xw.depth);
XftDrawChange(xw.draw, xw.buf);
xclear(0, 0, win.w, win.h);
@@ -796,6 +798,13 @@ xloadcols(void)
else
die("could not allocate color %d\n", i);
}
+
+ /* set alpha value of bg color */
+ if (opt_alpha)
+ alpha = strtof(opt_alpha, NULL);
+ dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
+ dc.col[defaultbg].pixel &= 0x00FFFFFF;
+ dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
loaded = 1;
}
@@ -1118,11 +1127,23 @@ xinit(int cols, int rows)
Window parent;
pid_t thispid = getpid();
XColor xmousefg, xmousebg;
+ XWindowAttributes attr;
+ XVisualInfo vis;
if (!(xw.dpy = XOpenDisplay(NULL)))
die("can't open display\n");
xw.scr = XDefaultScreen(xw.dpy);
- xw.vis = XDefaultVisual(xw.dpy, xw.scr);
+
+ if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
+ parent = XRootWindow(xw.dpy, xw.scr);
+ xw.depth = 32;
+ } else {
+ XGetWindowAttributes(xw.dpy, parent, &attr);
+ xw.depth = attr.depth;
+ }
+
+ XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
+ xw.vis = vis.visual;
/* font */
if (!FcInit())
@@ -1132,7 +1153,7 @@ xinit(int cols, int rows)
xloadfonts(usedfont, 0);
/* colors */
- xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+ xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
xloadcols();
/* adjust fixed window geometry */
@@ -1152,19 +1173,15 @@ xinit(int cols, int rows)
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
xw.attrs.colormap = xw.cmap;
- if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
- parent = XRootWindow(xw.dpy, xw.scr);
xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
- win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
+ win.w, win.h, 0, xw.depth, InputOutput,
xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
| CWEventMask | CWColormap, &xw.attrs);
memset(&gcvalues, 0, sizeof(gcvalues));
gcvalues.graphics_exposures = False;
- dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
- &gcvalues);
- xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
- DefaultDepth(xw.dpy, xw.scr));
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
+ dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues);
XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
@@ -2019,6 +2036,9 @@ main(int argc, char *argv[])
case 'a':
allowaltscreen = 0;
break;
+ case 'A':
+ opt_alpha = EARGF(usage());
+ break;
case 'c':
opt_class = EARGF(usage());
break;

259
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@ -0,0 +1,259 @@
From 8c9c920325fa10440a96736ba58ec647a0365e22 Mon Sep 17 00:00:00 2001
From: "Avi Halachmi (:avih)" <avihpit@yahoo.com>
Date: Sat, 18 Apr 2020 13:56:11 +0300
Subject: [PATCH] application-sync: support Synchronized-Updates
See https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec
In a nutshell: allow an application to suspend drawing until it has
completed some output - so that the terminal will not flicker/tear by
rendering partial content. If the end-of-suspension sequence doesn't
arrive, the terminal bails out after a timeout (default: 200 ms).
The feature is supported and pioneered by iTerm2. There are probably
very few other terminals or applications which support this feature
currently.
One notable application which does support it is tmux (master as of
2020-04-18) - where cursor flicker is completely avoided when a pane
has new content. E.g. run in one pane: `while :; do cat x.c; done'
while the cursor is at another pane.
The terminfo string `Sync' added to `st.info' is also a tmux extension
which tmux detects automatically when `st.info` is installed.
Notes:
- Draw-suspension begins on BSU sequence (Begin-Synchronized-Update),
and ends on ESU sequence (End-Synchronized-Update).
- BSU, ESU are "\033P=1s\033\\", "\033P=2s\033\\" respectively (DCS).
- SU doesn't support nesting - BSU begins or extends, ESU always ends.
- ESU without BSU is ignored.
- BSU after BSU extends (resets the timeout), so an application could
send BSU in a loop and keep drawing suspended - exactly like it can
not-draw anything in a loop. But as soon as it exits/aborted then
drawing is resumed according to the timeout even without ESU.
- This implementation focuses on ESU and doesn't really care about BSU
in the sense that it tries hard to draw exactly once ESU arrives (if
it's not too soon after the last draw - according to minlatency),
and doesn't try to draw the content just up-to BSU. These two sides
complement eachother - not-drawing on BSU increases the chance that
ESU is not too soon after the last draw. This approach was chosen
because the application's main focus is that ESU indicates to the
terminal that the content is now ready - and that's when we try to
draw.
---
config.def.h | 6 ++++++
st.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
st.info | 1 +
x.c | 22 +++++++++++++++++++---
4 files changed, 72 insertions(+), 5 deletions(-)
diff --git a/config.def.h b/config.def.h
index 6f05dce..80d768e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -56,6 +56,12 @@ int allowwindowops = 0;
static double minlatency = 8;
static double maxlatency = 33;
+/*
+ * Synchronized-Update timeout in ms
+ * https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec
+ */
+static uint su_timeout = 200;
+
/*
* blinking timeout (set to 0 to disable blinking) for the terminal blinking
* attribute.
diff --git a/st.c b/st.c
index 76b7e0d..0582e77 100644
--- a/st.c
+++ b/st.c
@@ -231,6 +231,33 @@ static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
+#include <time.h>
+static int su = 0;
+struct timespec sutv;
+
+static void
+tsync_begin()
+{
+ clock_gettime(CLOCK_MONOTONIC, &sutv);
+ su = 1;
+}
+
+static void
+tsync_end()
+{
+ su = 0;
+}
+
+int
+tinsync(uint timeout)
+{
+ struct timespec now;
+ if (su && !clock_gettime(CLOCK_MONOTONIC, &now)
+ && TIMEDIFF(now, sutv) >= timeout)
+ su = 0;
+ return su;
+}
+
ssize_t
xwrite(int fd, const char *s, size_t len)
{
@@ -818,6 +845,9 @@ ttynew(char *line, char *cmd, char *out, char **args)
return cmdfd;
}
+static int twrite_aborted = 0;
+int ttyread_pending() { return twrite_aborted; }
+
size_t
ttyread(void)
{
@@ -826,7 +856,7 @@ ttyread(void)
int ret, written;
/* append read bytes to unprocessed bytes */
- ret = read(cmdfd, buf+buflen, LEN(buf)-buflen);
+ ret = twrite_aborted ? 1 : read(cmdfd, buf+buflen, LEN(buf)-buflen);
switch (ret) {
case 0:
@@ -834,7 +864,7 @@ ttyread(void)
case -1:
die("couldn't read from shell: %s\n", strerror(errno));
default:
- buflen += ret;
+ buflen += twrite_aborted ? 0 : ret;
written = twrite(buf, buflen, 0);
buflen -= written;
/* keep any incomplete UTF-8 byte sequence for the next call */
@@ -994,6 +1024,7 @@ tsetdirtattr(int attr)
void
tfulldirt(void)
{
+ tsync_end();
tsetdirt(0, term.row-1);
}
@@ -1895,6 +1926,12 @@ strhandle(void)
xsettitle(strescseq.args[0]);
return;
case 'P': /* DCS -- Device Control String */
+ /* https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec */
+ if (strstr(strescseq.buf, "=1s") == strescseq.buf)
+ tsync_begin(); /* BSU */
+ else if (strstr(strescseq.buf, "=2s") == strescseq.buf)
+ tsync_end(); /* ESU */
+ return;
case '_': /* APC -- Application Program Command */
case '^': /* PM -- Privacy Message */
return;
@@ -2436,6 +2473,9 @@ twrite(const char *buf, int buflen, int show_ctrl)
Rune u;
int n;
+ int su0 = su;
+ twrite_aborted = 0;
+
for (n = 0; n < buflen; n += charsize) {
if (IS_SET(MODE_UTF8)) {
/* process a complete utf8 char */
@@ -2446,6 +2486,10 @@ twrite(const char *buf, int buflen, int show_ctrl)
u = buf[n] & 0xFF;
charsize = 1;
}
+ if (su0 && !su) {
+ twrite_aborted = 1;
+ break; // ESU - allow rendering before a new BSU
+ }
if (show_ctrl && ISCONTROL(u)) {
if (u & 0x80) {
u &= 0x7f;
diff --git a/st.info b/st.info
index 8201ad6..b32b446 100644
--- a/st.info
+++ b/st.info
@@ -191,6 +191,7 @@ st-mono| simpleterm monocolor,
Ms=\E]52;%p1%s;%p2%s\007,
Se=\E[2 q,
Ss=\E[%p1%d q,
+ Sync=\EP=%p1%ds\E\\,
st| simpleterm,
use=st-mono,
diff --git a/x.c b/x.c
index 210f184..27ff4e2 100644
--- a/x.c
+++ b/x.c
@@ -1861,6 +1861,9 @@ resize(XEvent *e)
cresize(e->xconfigure.width, e->xconfigure.height);
}
+int tinsync(uint);
+int ttyread_pending();
+
void
run(void)
{
@@ -1895,7 +1898,7 @@ run(void)
FD_SET(ttyfd, &rfd);
FD_SET(xfd, &rfd);
- if (XPending(xw.dpy))
+ if (XPending(xw.dpy) || ttyread_pending())
timeout = 0; /* existing events might not set xfd */
seltv.tv_sec = timeout / 1E3;
@@ -1909,7 +1912,8 @@ run(void)
}
clock_gettime(CLOCK_MONOTONIC, &now);
- if (FD_ISSET(ttyfd, &rfd))
+ int ttyin = FD_ISSET(ttyfd, &rfd) || ttyread_pending();
+ if (ttyin)
ttyread();
xev = 0;
@@ -1933,7 +1937,7 @@ run(void)
* maximum latency intervals during `cat huge.txt`, and perfect
* sync with periodic updates from animations/key-repeats/etc.
*/
- if (FD_ISSET(ttyfd, &rfd) || xev) {
+ if (ttyin || xev) {
if (!drawing) {
trigger = now;
drawing = 1;
@@ -1944,6 +1948,18 @@ run(void)
continue; /* we have time, try to find idle */
}
+ if (tinsync(su_timeout)) {
+ /*
+ * on synchronized-update draw-suspension: don't reset
+ * drawing so that we draw ASAP once we can (just after
+ * ESU). it won't be too soon because we already can
+ * draw now but we skip. we set timeout > 0 to draw on
+ * SU-timeout even without new content.
+ */
+ timeout = minlatency;
+ continue;
+ }
+
/* idle detected or maxlatency exhausted -> draw */
timeout = -1;
if (blinktimeout && tattrset(ATTR_BLINK)) {
base-commit: b27a383a3acc7decf00e6e889fca265430b5d329
--
2.17.1

163
patches/todo/st-font2-0.8.5.diff Normal file
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@ -0,0 +1,163 @@
From 1635e04d3643dd4caa0c7c2043b585c6d7e4705f Mon Sep 17 00:00:00 2001
From: Rizqi Nur Assyaufi <bandithijo@gmail.com>
Date: Mon, 18 Jul 2022 01:15:45 +0800
Subject: [PATCH] [st][patch][font2] Add patch for st-0.8.5
---
config.def.h | 6 +++
x.c | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 107 insertions(+)
diff --git a/config.def.h b/config.def.h
index 91ab8ca..717b2f0 100644
--- a/config.def.h
+++ b/config.def.h
@@ -6,6 +6,12 @@
* font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
*/
static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
+/* Spare fonts */
+static char *font2[] = {
+/* "Inconsolata for Powerline:pixelsize=12:antialias=true:autohint=true", */
+/* "Hack Nerd Font Mono:pixelsize=11:antialias=true:autohint=true", */
+};
+
static int borderpx = 2;
/*
diff --git a/x.c b/x.c
index 8a16faa..220fc4f 100644
--- a/x.c
+++ b/x.c
@@ -157,6 +157,8 @@ static void xhints(void);
static int xloadcolor(int, const char *, Color *);
static int xloadfont(Font *, FcPattern *);
static void xloadfonts(const char *, double);
+static int xloadsparefont(FcPattern *, int);
+static void xloadsparefonts(void);
static void xunloadfont(Font *);
static void xunloadfonts(void);
static void xsetenv(void);
@@ -306,6 +308,7 @@ zoomabs(const Arg *arg)
{
xunloadfonts();
xloadfonts(usedfont, arg->f);
+ xloadsparefonts();
cresize(0, 0);
redraw();
xhints();
@@ -1034,6 +1037,101 @@ xloadfonts(const char *fontstr, double fontsize)
FcPatternDestroy(pattern);
}
+int
+xloadsparefont(FcPattern *pattern, int flags)
+{
+ FcPattern *match;
+ FcResult result;
+
+ match = FcFontMatch(NULL, pattern, &result);
+ if (!match) {
+ return 1;
+ }
+
+ if (!(frc[frclen].font = XftFontOpenPattern(xw.dpy, match))) {
+ FcPatternDestroy(match);
+ return 1;
+ }
+
+ frc[frclen].flags = flags;
+ /* Believe U+0000 glyph will present in each default font */
+ frc[frclen].unicodep = 0;
+ frclen++;
+
+ return 0;
+}
+
+void
+xloadsparefonts(void)
+{
+ FcPattern *pattern;
+ double sizeshift, fontval;
+ int fc;
+ char **fp;
+
+ if (frclen != 0)
+ die("can't embed spare fonts. cache isn't empty");
+
+ /* Calculate count of spare fonts */
+ fc = sizeof(font2) / sizeof(*font2);
+ if (fc == 0)
+ return;
+
+ /* Allocate memory for cache entries. */
+ if (frccap < 4 * fc) {
+ frccap += 4 * fc - frccap;
+ frc = xrealloc(frc, frccap * sizeof(Fontcache));
+ }
+
+ for (fp = font2; fp - font2 < fc; ++fp) {
+
+ if (**fp == '-')
+ pattern = XftXlfdParse(*fp, False, False);
+ else
+ pattern = FcNameParse((FcChar8 *)*fp);
+
+ if (!pattern)
+ die("can't open spare font %s\n", *fp);
+
+ if (defaultfontsize > 0) {
+ sizeshift = usedfontsize - defaultfontsize;
+ if (sizeshift != 0 &&
+ FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ fontval += sizeshift;
+ FcPatternDel(pattern, FC_PIXEL_SIZE);
+ FcPatternDel(pattern, FC_SIZE);
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, fontval);
+ }
+ }
+
+ FcPatternAddBool(pattern, FC_SCALABLE, 1);
+
+ FcConfigSubstitute(NULL, pattern, FcMatchPattern);
+ XftDefaultSubstitute(xw.dpy, xw.scr, pattern);
+
+ if (xloadsparefont(pattern, FRC_NORMAL))
+ die("can't open spare font %s\n", *fp);
+
+ FcPatternDel(pattern, FC_SLANT);
+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
+ if (xloadsparefont(pattern, FRC_ITALIC))
+ die("can't open spare font %s\n", *fp);
+
+ FcPatternDel(pattern, FC_WEIGHT);
+ FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
+ if (xloadsparefont(pattern, FRC_ITALICBOLD))
+ die("can't open spare font %s\n", *fp);
+
+ FcPatternDel(pattern, FC_SLANT);
+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
+ if (xloadsparefont(pattern, FRC_BOLD))
+ die("can't open spare font %s\n", *fp);
+
+ FcPatternDestroy(pattern);
+ }
+}
+
void
xunloadfont(Font *f)
{
@@ -1131,6 +1229,9 @@ xinit(int cols, int rows)
usedfont = (opt_font == NULL)? font : opt_font;
xloadfonts(usedfont, 0);
+ /* spare fonts */
+ xloadsparefonts();
+
/* colors */
xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
xloadcols();
--
2.37.1

206
patches/todo/st-glyph-wide-support-20220411-ef05519.diff Normal file
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@ -0,0 +1,206 @@
From 68de38fadd04f2f454bceccea0fccc8276b635cb Mon Sep 17 00:00:00 2001
From: wael <40663@protonmail.com>
Date: Mon, 11 Apr 2022 16:45:49 +0300
Subject: [PATCH] add glyph wide support patch
---
st.h | 6 +++
x.c | 134 +++++++++++++++++++++++++++++------------------------------
2 files changed, 73 insertions(+), 67 deletions(-)
diff --git a/st.h b/st.h
index 519b9bd..4f74621 100644
--- a/st.h
+++ b/st.h
@@ -36,6 +36,12 @@ enum glyph_attribute {
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
};
+enum drawing_mode {
+ DRAW_NONE = 0,
+ DRAW_BG = 1 << 0,
+ DRAW_FG = 1 << 1,
+};
+
enum selection_mode {
SEL_IDLE = 0,
SEL_EMPTY = 1,
diff --git a/x.c b/x.c
index 2a3bd38..d60df52 100644
--- a/x.c
+++ b/x.c
@@ -142,7 +142,7 @@ typedef struct {
static inline ushort sixd_to_16bit(int);
static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
-static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
+static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
static void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int);
static int xgeommasktogravity(int);
@@ -1372,7 +1372,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
}
void
-xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
+xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode)
{
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
@@ -1463,47 +1463,40 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
if (base.mode & ATTR_INVISIBLE)
fg = bg;
- /* Intelligent cleaning up of the borders. */
- if (x == 0) {
- xclear(0, (y == 0)? 0 : winy, borderpx,
- winy + win.ch +
- ((winy + win.ch >= borderpx + win.th)? win.h : 0));
- }
- if (winx + width >= borderpx + win.tw) {
- xclear(winx + width, (y == 0)? 0 : winy, win.w,
- ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
- }
- if (y == 0)
- xclear(winx, 0, winx + width, borderpx);
- if (winy + win.ch >= borderpx + win.th)
- xclear(winx, winy + win.ch, winx + width, win.h);
-
- /* Clean up the region we want to draw to. */
- XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
-
- /* Set the clip region because Xft is sometimes dirty. */
- r.x = 0;
- r.y = 0;
- r.height = win.ch;
- r.width = width;
- XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
-
- /* Render the glyphs. */
- XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
-
- /* Render underline and strikethrough. */
- if (base.mode & ATTR_UNDERLINE) {
- XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent * chscale + 1,
- width, 1);
- }
-
- if (base.mode & ATTR_STRUCK) {
- XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent * chscale / 3,
- width, 1);
- }
-
- /* Reset clip to none. */
- XftDrawSetClip(xw.draw, 0);
+ if (dmode & DRAW_BG) {
+ /* Intelligent cleaning up of the borders. */
+ if (x == 0) {
+ xclear(0, (y == 0)? 0 : winy, borderpx,
+ winy + win.ch +
+ ((winy + win.ch >= borderpx + win.th)? win.h : 0));
+ }
+ if (winx + width >= borderpx + win.tw) {
+ xclear(winx + width, (y == 0)? 0 : winy, win.w,
+ ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
+ }
+ if (y == 0)
+ xclear(winx, 0, winx + width, borderpx);
+ if (winy + win.ch >= borderpx + win.th)
+ xclear(winx, winy + win.ch, winx + width, win.h);
+ /* Fill the background */
+ XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
+ }
+
+ if (dmode & DRAW_FG) {
+ /* Render the glyphs. */
+ XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
+
+ /* Render underline and strikethrough. */
+ if (base.mode & ATTR_UNDERLINE) {
+ XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
+ width, 1);
+ }
+
+ if (base.mode & ATTR_STRUCK) {
+ XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
+ width, 1);
+ }
+ }
}
void
@@ -1513,7 +1506,7 @@ xdrawglyph(Glyph g, int x, int y)
XftGlyphFontSpec spec;
numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
- xdrawglyphfontspecs(&spec, g, numspecs, x, y);
+ xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG);
}
void
@@ -1648,32 +1641,39 @@ xstartdraw(void)
void
xdrawline(Line line, int x1, int y1, int x2)
{
- int i, x, ox, numspecs;
+ int i, x, ox, numspecs, numspecs_cached;
Glyph base, new;
- XftGlyphFontSpec *specs = xw.specbuf;
-
- numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
- i = ox = 0;
- for (x = x1; x < x2 && i < numspecs; x++) {
- new = line[x];
- if (new.mode == ATTR_WDUMMY)
- continue;
- if (selected(x, y1))
- new.mode ^= ATTR_REVERSE;
- if (i > 0 && ATTRCMP(base, new)) {
- xdrawglyphfontspecs(specs, base, i, ox, y1);
- specs += i;
- numspecs -= i;
- i = 0;
- }
- if (i == 0) {
- ox = x;
- base = new;
+ XftGlyphFontSpec *specs;
+
+ numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
+
+ /* Draw line in 2 passes: background and foreground. This way wide glyphs
+ won't get truncated (#223) */
+ for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
+ specs = xw.specbuf;
+ numspecs = numspecs_cached;
+ i = ox = 0;
+ for (x = x1; x < x2 && i < numspecs; x++) {
+ new = line[x];
+ if (new.mode == ATTR_WDUMMY)
+ continue;
+ if (selected(x, y1))
+ new.mode ^= ATTR_REVERSE;
+ if (i > 0 && ATTRCMP(base, new)) {
+ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
+ specs += i;
+ numspecs -= i;
+ i = 0;
+ }
+ if (i == 0) {
+ ox = x;
+ base = new;
+ }
+ i++;
}
- i++;
+ if (i > 0)
+ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
}
- if (i > 0)
- xdrawglyphfontspecs(specs, base, i, ox, y1);
}
void
--
2.35.1

315
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View File

@ -0,0 +1,315 @@
diff --git a/Makefile b/Makefile
index 470ac86..38240da 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@
include config.mk
-SRC = st.c x.c
+SRC = st.c x.c hb.c
OBJ = $(SRC:.c=.o)
all: options st
@@ -22,7 +22,8 @@ config.h:
$(CC) $(STCFLAGS) -c $<
st.o: config.h st.h win.h
-x.o: arg.h config.h st.h win.h
+x.o: arg.h config.h st.h win.h hb.h
+hb.o: st.h
$(OBJ): config.h config.mk
diff --git a/config.mk b/config.mk
index aaa54ff..1741840 100644
--- a/config.mk
+++ b/config.mk
@@ -15,10 +15,12 @@ PKG_CONFIG = pkg-config
# includes and libs
INCS = -I$(X11INC) \
`$(PKG_CONFIG) --cflags fontconfig` \
- `$(PKG_CONFIG) --cflags freetype2`
+ `$(PKG_CONFIG) --cflags freetype2` \
+ `$(PKG_CONFIG) --cflags harfbuzz`
LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\
`$(PKG_CONFIG) --libs fontconfig` \
- `$(PKG_CONFIG) --libs freetype2`
+ `$(PKG_CONFIG) --libs freetype2` \
+ `$(PKG_CONFIG) --libs harfbuzz`
# flags
STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600
diff --git a/hb.c b/hb.c
new file mode 100644
index 0000000..f9c4f76
--- /dev/null
+++ b/hb.c
@@ -0,0 +1,145 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <X11/Xft/Xft.h>
+#include <hb.h>
+#include <hb-ft.h>
+
+#include "st.h"
+
+#define FEATURE(c1,c2,c3,c4) { .tag = HB_TAG(c1,c2,c3,c4), .value = 1, .start = HB_FEATURE_GLOBAL_START, .end = HB_FEATURE_GLOBAL_END }
+
+void hbtransformsegment(XftFont *xfont, const Glyph *string, hb_codepoint_t *codepoints, int start, int length);
+hb_font_t *hbfindfont(XftFont *match);
+
+typedef struct {
+ XftFont *match;
+ hb_font_t *font;
+} HbFontMatch;
+
+static int hbfontslen = 0;
+static HbFontMatch *hbfontcache = NULL;
+
+/*
+ * Poplulate the array with a list of font features, wrapped in FEATURE macro,
+ * e. g.
+ * FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g')
+ */
+hb_feature_t features[] = { };
+
+void
+hbunloadfonts()
+{
+ for (int i = 0; i < hbfontslen; i++) {
+ hb_font_destroy(hbfontcache[i].font);
+ XftUnlockFace(hbfontcache[i].match);
+ }
+
+ if (hbfontcache != NULL) {
+ free(hbfontcache);
+ hbfontcache = NULL;
+ }
+ hbfontslen = 0;
+}
+
+hb_font_t *
+hbfindfont(XftFont *match)
+{
+ for (int i = 0; i < hbfontslen; i++) {
+ if (hbfontcache[i].match == match)
+ return hbfontcache[i].font;
+ }
+
+ /* Font not found in cache, caching it now. */
+ hbfontcache = realloc(hbfontcache, sizeof(HbFontMatch) * (hbfontslen + 1));
+ FT_Face face = XftLockFace(match);
+ hb_font_t *font = hb_ft_font_create(face, NULL);
+ if (font == NULL)
+ die("Failed to load Harfbuzz font.");
+
+ hbfontcache[hbfontslen].match = match;
+ hbfontcache[hbfontslen].font = font;
+ hbfontslen += 1;
+
+ return font;
+}
+
+void
+hbtransform(XftGlyphFontSpec *specs, const Glyph *glyphs, size_t len, int x, int y)
+{
+ int start = 0, length = 1, gstart = 0;
+ hb_codepoint_t *codepoints = calloc((unsigned int)len, sizeof(hb_codepoint_t));
+
+ for (int idx = 1, specidx = 1; idx < len; idx++) {
+ if (glyphs[idx].mode & ATTR_WDUMMY) {
+ length += 1;
+ continue;
+ }
+
+ if (specs[specidx].font != specs[start].font || ATTRCMP(glyphs[gstart], glyphs[idx]) || selected(x + idx, y) != selected(x + gstart, y)) {
+ hbtransformsegment(specs[start].font, glyphs, codepoints, gstart, length);
+
+ /* Reset the sequence. */
+ length = 1;
+ start = specidx;
+ gstart = idx;
+ } else {
+ length += 1;
+ }
+
+ specidx++;
+ }
+
+ /* EOL. */
+ hbtransformsegment(specs[start].font, glyphs, codepoints, gstart, length);
+
+ /* Apply the transformation to glyph specs. */
+ for (int i = 0, specidx = 0; i < len; i++) {
+ if (glyphs[i].mode & ATTR_WDUMMY)
+ continue;
+
+ if (codepoints[i] != specs[specidx].glyph)
+ ((Glyph *)glyphs)[i].mode |= ATTR_LIGA;
+
+ specs[specidx++].glyph = codepoints[i];
+ }
+
+ free(codepoints);
+}
+
+void
+hbtransformsegment(XftFont *xfont, const Glyph *string, hb_codepoint_t *codepoints, int start, int length)
+{
+ hb_font_t *font = hbfindfont(xfont);
+ if (font == NULL)
+ return;
+
+ Rune rune;
+ ushort mode = USHRT_MAX;
+ hb_buffer_t *buffer = hb_buffer_create();
+ hb_buffer_set_direction(buffer, HB_DIRECTION_LTR);
+
+ /* Fill buffer with codepoints. */
+ for (int i = start; i < (start+length); i++) {
+ rune = string[i].u;
+ mode = string[i].mode;
+ if (mode & ATTR_WDUMMY)
+ rune = 0x0020;
+ hb_buffer_add_codepoints(buffer, &rune, 1, 0, 1);
+ }
+
+ /* Shape the segment. */
+ hb_shape(font, buffer, features, sizeof(features)/sizeof(hb_feature_t));
+
+ /* Get new glyph info. */
+ hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, NULL);
+
+ /* Write new codepoints. */
+ for (int i = 0; i < length; i++) {
+ hb_codepoint_t gid = info[i].codepoint;
+ codepoints[start+i] = gid;
+ }
+
+ /* Cleanup. */
+ hb_buffer_destroy(buffer);
+}
diff --git a/hb.h b/hb.h
new file mode 100644
index 0000000..07888df
--- /dev/null
+++ b/hb.h
@@ -0,0 +1,6 @@
+#include <X11/Xft/Xft.h>
+#include <hb.h>
+#include <hb-ft.h>
+
+void hbunloadfonts();
+void hbtransform(XftGlyphFontSpec *, const Glyph *, size_t, int, int);
diff --git a/st.c b/st.c
index edec064..ea13c13 100644
--- a/st.c
+++ b/st.c
@@ -2652,7 +2652,8 @@ draw(void)
drawregion(0, 0, term.col, term.row);
if (term.scr == 0)
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
- term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
+ term.ocx, term.ocy, term.line[term.ocy][term.ocx],
+ term.line[term.ocy], term.col);
term.ocx = cx;
term.ocy = term.c.y;
xfinishdraw();
diff --git a/st.h b/st.h
index 7ea2fd3..089b92d 100644
--- a/st.h
+++ b/st.h
@@ -11,7 +11,8 @@
#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)
-#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \
+#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) != ((b).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) || \
+ (a).fg != (b).fg || \
(a).bg != (b).bg)
#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \
(t1.tv_nsec-t2.tv_nsec)/1E6)
@@ -33,6 +34,7 @@ enum glyph_attribute {
ATTR_WRAP = 1 << 8,
ATTR_WIDE = 1 << 9,
ATTR_WDUMMY = 1 << 10,
+ ATTR_LIGA = 1 << 11,
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
};
diff --git a/win.h b/win.h
index a6ef1b9..bc0d180 100644
--- a/win.h
+++ b/win.h
@@ -25,7 +25,7 @@ enum win_mode {
void xbell(void);
void xclipcopy(void);
-void xdrawcursor(int, int, Glyph, int, int, Glyph);
+void xdrawcursor(int, int, Glyph, int, int, Glyph, Line, int);
void xdrawline(Line, int, int, int);
void xfinishdraw(void);
void xloadcols(void);
diff --git a/x.c b/x.c
index 73545d8..9e980e3 100644
--- a/x.c
+++ b/x.c
@@ -19,6 +19,7 @@ char *argv0;
#include "arg.h"
#include "st.h"
#include "win.h"
+#include "hb.h"
/* types used in config.h */
typedef struct {
@@ -1040,6 +1041,9 @@ xunloadfont(Font *f)
void
xunloadfonts(void)
{
+ /* Clear Harfbuzz font cache. */
+ hbunloadfonts();
+
/* Free the loaded fonts in the font cache. */
while (frclen > 0)
XftFontClose(xw.dpy, frc[--frclen].font);
@@ -1246,7 +1250,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
mode = glyphs[i].mode;
/* Skip dummy wide-character spacing. */
- if (mode == ATTR_WDUMMY)
+ if (mode & ATTR_WDUMMY)
continue;
/* Determine font for glyph if different from previous glyph. */
@@ -1353,6 +1357,9 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
numspecs++;
}
+ /* Harfbuzz transformation for ligatures. */
+ hbtransform(specs, glyphs, len, x, y);
+
return numspecs;
}
@@ -1502,14 +1509,17 @@ xdrawglyph(Glyph g, int x, int y)
}
void
-xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
+xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len)
{
Color drawcol;
/* remove the old cursor */
if (selected(ox, oy))
og.mode ^= ATTR_REVERSE;
- xdrawglyph(og, ox, oy);
+
+ /* Redraw the line where cursor was previously.
+ * It will restore the ligatures broken by the cursor. */
+ xdrawline(line, 0, oy, len);
if (IS_SET(MODE_HIDE))
return;

350
patches/todo/st-scrollback-0.8.5.diff Normal file
View File

@ -0,0 +1,350 @@
diff --git a/config.def.h b/config.def.h
index 91ab8ca..e3b469b 100644
--- a/config.def.h
+++ b/config.def.h
@@ -201,6 +201,8 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
+ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
};
/*
diff --git a/st.c b/st.c
index 51049ba..cd750f2 100644
--- a/st.c
+++ b/st.c
@@ -35,6 +35,7 @@
#define ESC_ARG_SIZ 16
#define STR_BUF_SIZ ESC_BUF_SIZ
#define STR_ARG_SIZ ESC_ARG_SIZ
+#define HISTSIZE 2000
/* macros */
#define IS_SET(flag) ((term.mode & (flag)) != 0)
@@ -42,6 +43,9 @@
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define ISDELIM(u) (u && wcschr(worddelimiters, u))
+#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \
+ term.scr + HISTSIZE + 1) % HISTSIZE] : \
+ term.line[(y) - term.scr])
enum term_mode {
MODE_WRAP = 1 << 0,
@@ -115,6 +119,9 @@ typedef struct {
int col; /* nb col */
Line *line; /* screen */
Line *alt; /* alternate screen */
+ Line hist[HISTSIZE]; /* history buffer */
+ int histi; /* history index */
+ int scr; /* scroll back */
int *dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int ocx; /* old cursor col */
@@ -184,8 +191,8 @@ static void tnewline(int);
static void tputtab(int);
static void tputc(Rune);
static void treset(void);
-static void tscrollup(int, int);
-static void tscrolldown(int, int);
+static void tscrollup(int, int, int);
+static void tscrolldown(int, int, int);
static void tsetattr(const int *, int);
static void tsetchar(Rune, const Glyph *, int, int);
static void tsetdirt(int, int);
@@ -416,10 +423,10 @@ tlinelen(int y)
{
int i = term.col;
- if (term.line[y][i - 1].mode & ATTR_WRAP)
+ if (TLINE(y)[i - 1].mode & ATTR_WRAP)
return i;
- while (i > 0 && term.line[y][i - 1].u == ' ')
+ while (i > 0 && TLINE(y)[i - 1].u == ' ')
--i;
return i;
@@ -528,7 +535,7 @@ selsnap(int *x, int *y, int direction)
* Snap around if the word wraps around at the end or
* beginning of a line.
*/
- prevgp = &term.line[*y][*x];
+ prevgp = &TLINE(*y)[*x];
prevdelim = ISDELIM(prevgp->u);
for (;;) {
newx = *x + direction;
@@ -543,14 +550,14 @@ selsnap(int *x, int *y, int direction)
yt = *y, xt = *x;
else
yt = newy, xt = newx;
- if (!(term.line[yt][xt].mode & ATTR_WRAP))
+ if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
break;
}
if (newx >= tlinelen(newy))
break;
- gp = &term.line[newy][newx];
+ gp = &TLINE(newy)[newx];
delim = ISDELIM(gp->u);
if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
|| (delim && gp->u != prevgp->u)))
@@ -571,14 +578,14 @@ selsnap(int *x, int *y, int direction)
*x = (direction < 0) ? 0 : term.col - 1;
if (direction < 0) {
for (; *y > 0; *y += direction) {
- if (!(term.line[*y-1][term.col-1].mode
+ if (!(TLINE(*y-1)[term.col-1].mode
& ATTR_WRAP)) {
break;
}
}
} else if (direction > 0) {
for (; *y < term.row-1; *y += direction) {
- if (!(term.line[*y][term.col-1].mode
+ if (!(TLINE(*y)[term.col-1].mode
& ATTR_WRAP)) {
break;
}
@@ -609,13 +616,13 @@ getsel(void)
}
if (sel.type == SEL_RECTANGULAR) {
- gp = &term.line[y][sel.nb.x];
+ gp = &TLINE(y)[sel.nb.x];
lastx = sel.ne.x;
} else {
- gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
+ gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0];
lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
}
- last = &term.line[y][MIN(lastx, linelen-1)];
+ last = &TLINE(y)[MIN(lastx, linelen-1)];
while (last >= gp && last->u == ' ')
--last;
@@ -851,6 +858,9 @@ void
ttywrite(const char *s, size_t n, int may_echo)
{
const char *next;
+ Arg arg = (Arg) { .i = term.scr };
+
+ kscrolldown(&arg);
if (may_echo && IS_SET(MODE_ECHO))
twrite(s, n, 1);
@@ -1062,12 +1072,52 @@ tswapscreen(void)
}
void
-tscrolldown(int orig, int n)
+kscrolldown(const Arg* a)
+{
+ int n = a->i;
+
+ if (n < 0)
+ n = term.row + n;
+
+ if (n > term.scr)
+ n = term.scr;
+
+ if (term.scr > 0) {
+ term.scr -= n;
+ selscroll(0, -n);
+ tfulldirt();
+ }
+}
+
+void
+kscrollup(const Arg* a)
+{
+ int n = a->i;
+
+ if (n < 0)
+ n = term.row + n;
+
+ if (term.scr <= HISTSIZE-n) {
+ term.scr += n;
+ selscroll(0, n);
+ tfulldirt();
+ }
+}
+
+void
+tscrolldown(int orig, int n, int copyhist)
{
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
+ if (copyhist) {
+ term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE;
+ temp = term.hist[term.histi];
+ term.hist[term.histi] = term.line[term.bot];
+ term.line[term.bot] = temp;
+ }
+
tsetdirt(orig, term.bot-n);
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
@@ -1078,17 +1128,28 @@ tscrolldown(int orig, int n)
term.line[i-n] = temp;
}
- selscroll(orig, n);
+ if (term.scr == 0)
+ selscroll(orig, n);
}
void
-tscrollup(int orig, int n)
+tscrollup(int orig, int n, int copyhist)
{
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
+ if (copyhist) {
+ term.histi = (term.histi + 1) % HISTSIZE;
+ temp = term.hist[term.histi];
+ term.hist[term.histi] = term.line[orig];
+ term.line[orig] = temp;
+ }
+
+ if (term.scr > 0 && term.scr < HISTSIZE)
+ term.scr = MIN(term.scr + n, HISTSIZE-1);
+
tclearregion(0, orig, term.col-1, orig+n-1);
tsetdirt(orig+n, term.bot);
@@ -1098,7 +1159,8 @@ tscrollup(int orig, int n)
term.line[i+n] = temp;
}
- selscroll(orig, -n);
+ if (term.scr == 0)
+ selscroll(orig, -n);
}
void
@@ -1127,7 +1189,7 @@ tnewline(int first_col)
int y = term.c.y;
if (y == term.bot) {
- tscrollup(term.top, 1);
+ tscrollup(term.top, 1, 1);
} else {
y++;
}
@@ -1292,14 +1354,14 @@ void
tinsertblankline(int n)
{
if (BETWEEN(term.c.y, term.top, term.bot))
- tscrolldown(term.c.y, n);
+ tscrolldown(term.c.y, n, 0);
}
void
tdeleteline(int n)
{
if (BETWEEN(term.c.y, term.top, term.bot))
- tscrollup(term.c.y, n);
+ tscrollup(term.c.y, n, 0);
}
int32_t
@@ -1736,11 +1798,11 @@ csihandle(void)
break;
case 'S': /* SU -- Scroll <n> line up */
DEFAULT(csiescseq.arg[0], 1);
- tscrollup(term.top, csiescseq.arg[0]);
+ tscrollup(term.top, csiescseq.arg[0], 0);
break;
case 'T': /* SD -- Scroll <n> line down */
DEFAULT(csiescseq.arg[0], 1);
- tscrolldown(term.top, csiescseq.arg[0]);
+ tscrolldown(term.top, csiescseq.arg[0], 0);
break;
case 'L': /* IL -- Insert <n> blank lines */
DEFAULT(csiescseq.arg[0], 1);
@@ -2330,7 +2392,7 @@ eschandle(uchar ascii)
return 0;
case 'D': /* IND -- Linefeed */
if (term.c.y == term.bot) {
- tscrollup(term.top, 1);
+ tscrollup(term.top, 1, 1);
} else {
tmoveto(term.c.x, term.c.y+1);
}
@@ -2343,7 +2405,7 @@ eschandle(uchar ascii)
break;
case 'M': /* RI -- Reverse index */
if (term.c.y == term.top) {
- tscrolldown(term.top, 1);
+ tscrolldown(term.top, 1, 1);
} else {
tmoveto(term.c.x, term.c.y-1);
}
@@ -2557,7 +2619,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
void
tresize(int col, int row)
{
- int i;
+ int i, j;
int minrow = MIN(row, term.row);
int mincol = MIN(col, term.col);
int *bp;
@@ -2594,6 +2656,14 @@ tresize(int col, int row)
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
+ for (i = 0; i < HISTSIZE; i++) {
+ term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
+ for (j = mincol; j < col; j++) {
+ term.hist[i][j] = term.c.attr;
+ term.hist[i][j].u = ' ';
+ }
+ }
+
/* resize each row to new width, zero-pad if needed */
for (i = 0; i < minrow; i++) {
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
@@ -2652,7 +2722,7 @@ drawregion(int x1, int y1, int x2, int y2)
continue;
term.dirty[y] = 0;
- xdrawline(term.line[y], x1, y, x2);
+ xdrawline(TLINE(y), x1, y, x2);
}
}
@@ -2673,8 +2743,9 @@ draw(void)
cx--;
drawregion(0, 0, term.col, term.row);
- xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
- term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
+ if (term.scr == 0)
+ xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
+ term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
term.ocx = cx;
term.ocy = term.c.y;
xfinishdraw();
diff --git a/st.h b/st.h
index 519b9bd..da36b34 100644
--- a/st.h
+++ b/st.h
@@ -81,6 +81,8 @@ void die(const char *, ...);
void redraw(void);
void draw(void);
+void kscrolldown(const Arg *);
+void kscrollup(const Arg *);
void printscreen(const Arg *);
void printsel(const Arg *);
void sendbreak(const Arg *);

78
patches/todo/st-scrollback-mouse-altscreen-20220127-2c5edf2.diff Normal file
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@ -0,0 +1,78 @@
From 580e3f386e9215707100e9ba44797701943fd927 Mon Sep 17 00:00:00 2001
From: asparagii <michele.lambertucci1@gmail.com>
Date: Thu, 27 Jan 2022 15:49:27 +0100
Subject: [PATCH] st-scrollback-mouse-altscreen
---
config.def.h | 4 ++--
st.c | 5 +++++
st.h | 1 +
x.c | 2 ++
4 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/config.def.h b/config.def.h
index c217315..c223706 100644
--- a/config.def.h
+++ b/config.def.h
@@ -176,8 +176,8 @@ static uint forcemousemod = ShiftMask;
*/
static MouseShortcut mshortcuts[] = {
/* mask button function argument release */
- { ShiftMask, Button4, kscrollup, {.i = 1} },
- { ShiftMask, Button5, kscrolldown, {.i = 1} },
+ { XK_ANY_MOD, Button4, kscrollup, {.i = 1}, 0, /* !alt */ -1 },
+ { XK_ANY_MOD, Button5, kscrolldown, {.i = 1}, 0, /* !alt */ -1 },
{ XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
{ ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
{ XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
diff --git a/st.c b/st.c
index f3af82b..876a6bf 100644
--- a/st.c
+++ b/st.c
@@ -1060,6 +1060,11 @@ tnew(int col, int row)
treset();
}
+int tisaltscr(void)
+{
+ return IS_SET(MODE_ALTSCREEN);
+}
+
void
tswapscreen(void)
{
diff --git a/st.h b/st.h
index da36b34..e95c6f8 100644
--- a/st.h
+++ b/st.h
@@ -89,6 +89,7 @@ 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);
diff --git a/x.c b/x.c
index cd96575..9274556 100644
--- a/x.c
+++ b/x.c
@@ -34,6 +34,7 @@ typedef struct {
void (*func)(const Arg *);
const Arg arg;
uint release;
+ int altscrn; /* 0: don't care, -1: not alt screen, 1: alt screen */
} MouseShortcut;
typedef struct {
@@ -455,6 +456,7 @@ mouseaction(XEvent *e, uint release)
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
if (ms->release == release &&
ms->button == e->xbutton.button &&
+ (!ms->altscrn || (ms->altscrn == (tisaltscr() ? 1 : -1))) &&
(match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg));
--
2.34.1

34
patches/todo/st-scrollback-mouse-increment-0.8.2.diff Normal file
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@ -0,0 +1,34 @@
From 63e717e51dcd2f59c7a3aa75b659926aa92e08f3 Mon Sep 17 00:00:00 2001
From: Jacob Louis Prosser <geriatricjacob@cumallover.me>
Date: Mon, 5 Aug 2019 18:20:25 +1000
Subject: [st] [patch] Exposed variable to easily change mouse scroll increment.
---
config.def.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/config.def.h b/config.def.h
index ad20c4c..47e4b66 100644
--- a/config.def.h
+++ b/config.def.h
@@ -154,6 +154,7 @@ static unsigned int defaultattr = 11;
* Internal mouse shortcuts.
* Beware that overloading Button1 will disable the selection.
*/
+const unsigned int mousescrollincrement = 1;
static MouseShortcut mshortcuts[] = {
/* button mask string */
{ Button4, XK_NO_MOD, "\031" },
@@ -162,8 +163,8 @@ static MouseShortcut mshortcuts[] = {
MouseKey mkeys[] = {
/* button mask function argument */
- { Button4, ShiftMask, kscrollup, {.i = 1} },
- { Button5, ShiftMask, kscrolldown, {.i = 1} },
+ { Button4, ShiftMask, kscrollup, {.i = mousescrollincrement} },
+ { Button5, ShiftMask, kscrolldown, {.i = mousescrollincrement} },
};
/* Internal keyboard shortcuts. */
--
2.22.0

1478
patches/todo/st-scrollback-reflow-0.8.5.diff Normal file
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605
patches/todo/st-undercurl-0.8.4-20210822.diff Normal file
View File

@ -0,0 +1,605 @@
diff --git a/config.def.h b/config.def.h
index 6f05dce..7ae1b92 100644
--- a/config.def.h
+++ b/config.def.h
@@ -470,3 +470,27 @@ static char ascii_printable[] =
" !\"#$%&'()*+,-./0123456789:;<=>?"
"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
"`abcdefghijklmnopqrstuvwxyz{|}~";
+
+/**
+ * Undercurl style. Set UNDERCURL_STYLE to one of the available styles.
+ *
+ * Curly: Dunno how to draw it *shrug*
+ * _ _ _ _
+ * ( ) ( ) ( ) ( )
+ * (_) (_) (_) (_)
+ *
+ * Spiky:
+ * /\ /\ /\ /\
+ * \/ \/ \/
+ *
+ * Capped:
+ * _ _ _
+ * / \ / \ / \
+ * \_/ \_/
+ */
+// Available styles
+#define UNDERCURL_CURLY 0
+#define UNDERCURL_SPIKY 1
+#define UNDERCURL_CAPPED 2
+// Active style
+#define UNDERCURL_STYLE UNDERCURL_SPIKY
diff --git a/st.c b/st.c
index 76b7e0d..542ab3a 100644
--- a/st.c
+++ b/st.c
@@ -33,6 +33,7 @@
#define UTF_SIZ 4
#define ESC_BUF_SIZ (128*UTF_SIZ)
#define ESC_ARG_SIZ 16
+#define CAR_PER_ARG 4
#define STR_BUF_SIZ ESC_BUF_SIZ
#define STR_ARG_SIZ ESC_ARG_SIZ
@@ -139,6 +140,7 @@ typedef struct {
int arg[ESC_ARG_SIZ];
int narg; /* nb of args */
char mode[2];
+ int carg[ESC_ARG_SIZ][CAR_PER_ARG]; /* colon args */
} CSIEscape;
/* STR Escape sequence structs */
@@ -159,6 +161,7 @@ static void ttywriteraw(const char *, size_t);
static void csidump(void);
static void csihandle(void);
+static void readcolonargs(char **, int, int[][CAR_PER_ARG]);
static void csiparse(void);
static void csireset(void);
static int eschandle(uchar);
@@ -1131,6 +1134,28 @@ tnewline(int first_col)
tmoveto(first_col ? 0 : term.c.x, y);
}
+void
+readcolonargs(char **p, int cursor, int params[][CAR_PER_ARG])
+{
+ int i = 0;
+ for (; i < CAR_PER_ARG; i++)
+ params[cursor][i] = -1;
+
+ if (**p != ':')
+ return;
+
+ char *np = NULL;
+ i = 0;
+
+ while (**p == ':' && i < CAR_PER_ARG) {
+ while (**p == ':')
+ (*p)++;
+ params[cursor][i] = strtol(*p, &np, 10);
+ *p = np;
+ i++;
+ }
+}
+
void
csiparse(void)
{
@@ -1153,6 +1178,7 @@ csiparse(void)
v = -1;
csiescseq.arg[csiescseq.narg++] = v;
p = np;
+ readcolonargs(&p, csiescseq.narg-1, csiescseq.carg);
if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
break;
p++;
@@ -1369,6 +1395,10 @@ tsetattr(int *attr, int l)
ATTR_STRUCK );
term.c.attr.fg = defaultfg;
term.c.attr.bg = defaultbg;
+ term.c.attr.ustyle = -1;
+ term.c.attr.ucolor[0] = -1;
+ term.c.attr.ucolor[1] = -1;
+ term.c.attr.ucolor[2] = -1;
break;
case 1:
term.c.attr.mode |= ATTR_BOLD;
@@ -1380,7 +1410,14 @@ tsetattr(int *attr, int l)
term.c.attr.mode |= ATTR_ITALIC;
break;
case 4:
- term.c.attr.mode |= ATTR_UNDERLINE;
+ term.c.attr.ustyle = csiescseq.carg[i][0];
+
+ if (term.c.attr.ustyle != 0)
+ term.c.attr.mode |= ATTR_UNDERLINE;
+ else
+ term.c.attr.mode &= ~ATTR_UNDERLINE;
+
+ term.c.attr.mode ^= ATTR_DIRTYUNDERLINE;
break;
case 5: /* slow blink */
/* FALLTHROUGH */
@@ -1431,6 +1468,18 @@ tsetattr(int *attr, int l)
case 49:
term.c.attr.bg = defaultbg;
break;
+ case 58:
+ term.c.attr.ucolor[0] = csiescseq.carg[i][1];
+ term.c.attr.ucolor[1] = csiescseq.carg[i][2];
+ term.c.attr.ucolor[2] = csiescseq.carg[i][3];
+ term.c.attr.mode ^= ATTR_DIRTYUNDERLINE;
+ break;
+ case 59:
+ term.c.attr.ucolor[0] = -1;
+ term.c.attr.ucolor[1] = -1;
+ term.c.attr.ucolor[2] = -1;
+ term.c.attr.mode ^= ATTR_DIRTYUNDERLINE;
+ break;
default:
if (BETWEEN(attr[i], 30, 37)) {
term.c.attr.fg = attr[i] - 30;
diff --git a/st.h b/st.h
index 3d351b6..95bdcbd 100644
--- a/st.h
+++ b/st.h
@@ -34,6 +34,7 @@ enum glyph_attribute {
ATTR_WIDE = 1 << 9,
ATTR_WDUMMY = 1 << 10,
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+ ATTR_DIRTYUNDERLINE = 1 << 15,
};
enum selection_mode {
@@ -65,6 +66,8 @@ typedef struct {
ushort mode; /* attribute flags */
uint32_t fg; /* foreground */
uint32_t bg; /* background */
+ int ustyle; /* underline style */
+ int ucolor[3]; /* underline color */
} Glyph;
typedef Glyph *Line;
diff --git a/st.info b/st.info
index 8201ad6..659878c 100644
--- a/st.info
+++ b/st.info
@@ -1,4 +1,5 @@
st-mono| simpleterm monocolor,
+ Su,
acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
am,
bce,
diff --git a/x.c b/x.c
index 210f184..3a0e79e 100644
--- a/x.c
+++ b/x.c
@@ -45,6 +45,14 @@ typedef struct {
signed char appcursor; /* application cursor */
} Key;
+/* Undercurl slope types */
+enum undercurl_slope_type {
+ UNDERCURL_SLOPE_ASCENDING = 0,
+ UNDERCURL_SLOPE_TOP_CAP = 1,
+ UNDERCURL_SLOPE_DESCENDING = 2,
+ UNDERCURL_SLOPE_BOTTOM_CAP = 3
+};
+
/* X modifiers */
#define XK_ANY_MOD UINT_MAX
#define XK_NO_MOD 0
@@ -1339,6 +1347,51 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
return numspecs;
}
+static int isSlopeRising (int x, int iPoint, int waveWidth)
+{
+ // . . . .
+ // / \ / \ / \ / \
+ // / \ / \ / \ / \
+ // . . . . .
+
+ // Find absolute `x` of point
+ x += iPoint * (waveWidth/2);
+
+ // Find index of absolute wave
+ int absSlope = x / ((float)waveWidth/2);
+
+ return (absSlope % 2);
+}
+
+static int getSlope (int x, int iPoint, int waveWidth)
+{
+ // Sizes: Caps are half width of slopes
+ // 1_2 1_2 1_2 1_2
+ // / \ / \ / \ / \
+ // / \ / \ / \ / \
+ // 0 3_0 3_0 3_0 3_
+ // <2-> <1> <---6---->
+
+ // Find type of first point
+ int firstType;
+ x -= (x / waveWidth) * waveWidth;
+ if (x < (waveWidth * (2.f/6.f)))
+ firstType = UNDERCURL_SLOPE_ASCENDING;
+ else if (x < (waveWidth * (3.f/6.f)))
+ firstType = UNDERCURL_SLOPE_TOP_CAP;
+ else if (x < (waveWidth * (5.f/6.f)))
+ firstType = UNDERCURL_SLOPE_DESCENDING;
+ else
+ firstType = UNDERCURL_SLOPE_BOTTOM_CAP;
+
+ // Find type of given point
+ int pointType = (iPoint % 4);
+ pointType += firstType;
+ pointType %= 4;
+
+ return pointType;
+}
+
void
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
{
@@ -1461,8 +1514,357 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
/* Render underline and strikethrough. */
if (base.mode & ATTR_UNDERLINE) {
- XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
- width, 1);
+ // Underline Color
+ const int widthThreshold = 28; // +1 width every widthThreshold px of font
+ int wlw = (win.ch / widthThreshold) + 1; // Wave Line Width
+ int linecolor;
+ if ((base.ucolor[0] >= 0) &&
+ !(base.mode & ATTR_BLINK && win.mode & MODE_BLINK) &&
+ !(base.mode & ATTR_INVISIBLE)
+ ) {
+ // Special color for underline
+ // Index
+ if (base.ucolor[1] < 0) {
+ linecolor = dc.col[base.ucolor[0]].pixel;
+ }
+ // RGB
+ else {
+ XColor lcolor;
+ lcolor.red = base.ucolor[0] * 257;
+ lcolor.green = base.ucolor[1] * 257;
+ lcolor.blue = base.ucolor[2] * 257;
+ lcolor.flags = DoRed | DoGreen | DoBlue;
+ XAllocColor(xw.dpy, xw.cmap, &lcolor);
+ linecolor = lcolor.pixel;
+ }
+ } else {
+ // Foreground color for underline
+ linecolor = fg->pixel;
+ }
+
+ XGCValues ugcv = {
+ .foreground = linecolor,
+ .line_width = wlw,
+ .line_style = LineSolid,
+ .cap_style = CapNotLast
+ };
+
+ GC ugc = XCreateGC(xw.dpy, XftDrawDrawable(xw.draw),
+ GCForeground | GCLineWidth | GCLineStyle | GCCapStyle,
+ &ugcv);
+
+ // Underline Style
+ if (base.ustyle != 3) {
+ //XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, width, 1);
+ XFillRectangle(xw.dpy, XftDrawDrawable(xw.draw), ugc, winx,
+ winy + dc.font.ascent + 1, width, wlw);
+ } else if (base.ustyle == 3) {
+ int ww = win.cw;//width;
+ int wh = dc.font.descent - wlw/2 - 1;//r.height/7;
+ int wx = winx;
+ int wy = winy + win.ch - dc.font.descent;
+
+#if UNDERCURL_STYLE == UNDERCURL_CURLY
+ // Draw waves
+ int narcs = charlen * 2 + 1;
+ XArc *arcs = xmalloc(sizeof(XArc) * narcs);
+
+ int i = 0;
+ for (i = 0; i < charlen-1; i++) {
+ arcs[i*2] = (XArc) {
+ .x = wx + win.cw * i + ww / 4,
+ .y = wy,
+ .width = win.cw / 2,
+ .height = wh,
+ .angle1 = 0,
+ .angle2 = 180 * 64
+ };
+ arcs[i*2+1] = (XArc) {
+ .x = wx + win.cw * i + ww * 0.75,
+ .y = wy,
+ .width = win.cw/2,
+ .height = wh,
+ .angle1 = 180 * 64,
+ .angle2 = 180 * 64
+ };
+ }
+ // Last wave
+ arcs[i*2] = (XArc) {wx + ww * i + ww / 4, wy, ww / 2, wh,
+ 0, 180 * 64 };
+ // Last wave tail
+ arcs[i*2+1] = (XArc) {wx + ww * i + ww * 0.75, wy, ceil(ww / 2.),
+ wh, 180 * 64, 90 * 64};
+ // First wave tail
+ i++;
+ arcs[i*2] = (XArc) {wx - ww/4 - 1, wy, ceil(ww / 2.), wh, 270 * 64,
+ 90 * 64 };
+
+ XDrawArcs(xw.dpy, XftDrawDrawable(xw.draw), ugc, arcs, narcs);
+
+ free(arcs);
+#elif UNDERCURL_STYLE == UNDERCURL_SPIKY
+ // Make the underline corridor larger
+ /*
+ wy -= wh;
+ */
+ wh *= 2;
+
+ // Set the angle of the slope to 45°
+ ww = wh;
+
+ // Position of wave is independent of word, it's absolute
+ wx = (wx / (ww/2)) * (ww/2);
+
+ int marginStart = winx - wx;
+
+ // Calculate number of points with floating precision
+ float n = width; // Width of word in pixels
+ n = (n / ww) * 2; // Number of slopes (/ or \)
+ n += 2; // Add two last points
+ int npoints = n; // Convert to int
+
+ // Total length of underline
+ float waveLength = 0;
+
+ if (npoints >= 3) {
+ // We add an aditional slot in case we use a bonus point
+ XPoint *points = xmalloc(sizeof(XPoint) * (npoints + 1));
+
+ // First point (Starts with the word bounds)
+ points[0] = (XPoint) {
+ .x = wx + marginStart,
+ .y = (isSlopeRising(wx, 0, ww))
+ ? (wy - marginStart + ww/2.f)
+ : (wy + marginStart)
+ };
+
+ // Second point (Goes back to the absolute point coordinates)
+ points[1] = (XPoint) {
+ .x = (ww/2.f) - marginStart,
+ .y = (isSlopeRising(wx, 1, ww))
+ ? (ww/2.f - marginStart)
+ : (-ww/2.f + marginStart)
+ };
+ waveLength += (ww/2.f) - marginStart;
+
+ // The rest of the points
+ for (int i = 2; i < npoints-1; i++) {
+ points[i] = (XPoint) {
+ .x = ww/2,
+ .y = (isSlopeRising(wx, i, ww))
+ ? wh/2
+ : -wh/2
+ };
+ waveLength += ww/2;
+ }
+
+ // Last point
+ points[npoints-1] = (XPoint) {
+ .x = ww/2,
+ .y = (isSlopeRising(wx, npoints-1, ww))
+ ? wh/2
+ : -wh/2
+ };
+ waveLength += ww/2;
+
+ // End
+ if (waveLength < width) { // Add a bonus point?
+ int marginEnd = width - waveLength;
+ points[npoints] = (XPoint) {
+ .x = marginEnd,
+ .y = (isSlopeRising(wx, npoints, ww))
+ ? (marginEnd)
+ : (-marginEnd)
+ };
+
+ npoints++;
+ } else if (waveLength > width) { // Is last point too far?
+ int marginEnd = waveLength - width;
+ points[npoints-1].x -= marginEnd;
+ if (isSlopeRising(wx, npoints-1, ww))
+ points[npoints-1].y -= (marginEnd);
+ else
+ points[npoints-1].y += (marginEnd);
+ }
+
+ // Draw the lines
+ XDrawLines(xw.dpy, XftDrawDrawable(xw.draw), ugc, points, npoints,
+ CoordModePrevious);
+
+ // Draw a second underline with an offset of 1 pixel
+ if ( ((win.ch / (widthThreshold/2)) % 2)) {
+ points[0].x++;
+
+ XDrawLines(xw.dpy, XftDrawDrawable(xw.draw), ugc, points,
+ npoints, CoordModePrevious);
+ }
+
+ // Free resources
+ free(points);
+ }
+#else // UNDERCURL_CAPPED
+ // Cap is half of wave width
+ float capRatio = 0.5f;
+
+ // Make the underline corridor larger
+ wh *= 2;
+
+ // Set the angle of the slope to 45°
+ ww = wh;
+ ww *= 1 + capRatio; // Add a bit of width for the cap
+
+ // Position of wave is independent of word, it's absolute
+ wx = (wx / ww) * ww;
+
+ float marginStart;
+ switch(getSlope(winx, 0, ww)) {
+ case UNDERCURL_SLOPE_ASCENDING:
+ marginStart = winx - wx;
+ break;
+ case UNDERCURL_SLOPE_TOP_CAP:
+ marginStart = winx - (wx + (ww * (2.f/6.f)));
+ break;
+ case UNDERCURL_SLOPE_DESCENDING:
+ marginStart = winx - (wx + (ww * (3.f/6.f)));
+ break;
+ case UNDERCURL_SLOPE_BOTTOM_CAP:
+ marginStart = winx - (wx + (ww * (5.f/6.f)));
+ break;
+ }
+
+ // Calculate number of points with floating precision
+ float n = width; // Width of word in pixels
+ // ._.
+ n = (n / ww) * 4; // Number of points (./ \.)
+ n += 2; // Add two last points
+ int npoints = n; // Convert to int
+
+ // Position of the pen to draw the lines
+ float penX = 0;
+ float penY = 0;
+
+ if (npoints >= 3) {
+ XPoint *points = xmalloc(sizeof(XPoint) * (npoints + 1));
+
+ // First point (Starts with the word bounds)
+ penX = winx;
+ switch (getSlope(winx, 0, ww)) {
+ case UNDERCURL_SLOPE_ASCENDING:
+ penY = wy + wh/2.f - marginStart;
+ break;
+ case UNDERCURL_SLOPE_TOP_CAP:
+ penY = wy;
+ break;
+ case UNDERCURL_SLOPE_DESCENDING:
+ penY = wy + marginStart;
+ break;
+ case UNDERCURL_SLOPE_BOTTOM_CAP:
+ penY = wy + wh/2.f;
+ break;
+ }
+ points[0].x = penX;
+ points[0].y = penY;
+
+ // Second point (Goes back to the absolute point coordinates)
+ switch (getSlope(winx, 1, ww)) {
+ case UNDERCURL_SLOPE_ASCENDING:
+ penX += ww * (1.f/6.f) - marginStart;
+ penY += 0;
+ break;
+ case UNDERCURL_SLOPE_TOP_CAP:
+ penX += ww * (2.f/6.f) - marginStart;
+ penY += -wh/2.f + marginStart;
+ break;
+ case UNDERCURL_SLOPE_DESCENDING:
+ penX += ww * (1.f/6.f) - marginStart;
+ penY += 0;
+ break;
+ case UNDERCURL_SLOPE_BOTTOM_CAP:
+ penX += ww * (2.f/6.f) - marginStart;
+ penY += -marginStart + wh/2.f;
+ break;
+ }
+ points[1].x = penX;
+ points[1].y = penY;
+
+ // The rest of the points
+ for (int i = 2; i < npoints; i++) {
+ switch (getSlope(winx, i, ww)) {
+ case UNDERCURL_SLOPE_ASCENDING:
+ case UNDERCURL_SLOPE_DESCENDING:
+ penX += ww * (1.f/6.f);
+ penY += 0;
+ break;
+ case UNDERCURL_SLOPE_TOP_CAP:
+ penX += ww * (2.f/6.f);
+ penY += -wh / 2.f;
+ break;
+ case UNDERCURL_SLOPE_BOTTOM_CAP:
+ penX += ww * (2.f/6.f);
+ penY += wh / 2.f;
+ break;
+ }
+ points[i].x = penX;
+ points[i].y = penY;
+ }
+
+ // End
+ float waveLength = penX - winx;
+ if (waveLength < width) { // Add a bonus point?
+ int marginEnd = width - waveLength;
+ penX += marginEnd;
+ switch(getSlope(winx, npoints, ww)) {
+ case UNDERCURL_SLOPE_ASCENDING:
+ case UNDERCURL_SLOPE_DESCENDING:
+ //penY += 0;
+ break;
+ case UNDERCURL_SLOPE_TOP_CAP:
+ penY += -marginEnd;
+ break;
+ case UNDERCURL_SLOPE_BOTTOM_CAP:
+ penY += marginEnd;
+ break;
+ }
+
+ points[npoints].x = penX;
+ points[npoints].y = penY;
+
+ npoints++;
+ } else if (waveLength > width) { // Is last point too far?
+ int marginEnd = waveLength - width;
+ points[npoints-1].x -= marginEnd;
+ switch(getSlope(winx, npoints-1, ww)) {
+ case UNDERCURL_SLOPE_TOP_CAP:
+ points[npoints-1].y += marginEnd;
+ break;
+ case UNDERCURL_SLOPE_BOTTOM_CAP:
+ points[npoints-1].y -= marginEnd;
+ break;
+ default:
+ break;
+ }
+ }
+
+ // Draw the lines
+ XDrawLines(xw.dpy, XftDrawDrawable(xw.draw), ugc, points, npoints,
+ CoordModeOrigin);
+
+ // Draw a second underline with an offset of 1 pixel
+ if ( ((win.ch / (widthThreshold/2)) % 2)) {
+ for (int i = 0; i < npoints; i++)
+ points[i].x++;
+
+ XDrawLines(xw.dpy, XftDrawDrawable(xw.draw), ugc, points,
+ npoints, CoordModeOrigin);
+ }
+
+ // Free resources
+ free(points);
+ }
+#endif
+ }
+
+ XFreeGC(xw.dpy, ugc);
}
if (base.mode & ATTR_STRUCK) {