Implementing a print output mode and ability to not simulate keypresses for X - svkbd - simple virtual keyboard
(HTM) git clone git://git.suckless.org/svkbd
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---
(DIR) commit 3be1e21c9f7174f7cca2b8a099990a745f657a92
(DIR) parent e9208cb0888cbb694644905611f368ed5259923c
(HTM) Author: Maarten van Gompel <proycon@anaproy.nl>
Date: Sat, 6 Mar 2021 15:07:55 +0100
Implementing a print output mode and ability to not simulate keypresses for X
Diffstat:
M svkbd.c | 38 ++++++++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
---
(DIR) diff --git a/svkbd.c b/svkbd.c
@@ -78,6 +78,7 @@ static void setlayer();
static void togglelayer();
static void unpress(Key *k, KeySym mod);
static void updatekeys();
+static void printkey(Key *k, KeySym mod);
/* variables */
static int screen;
@@ -106,6 +107,8 @@ static KeySym overlaykeysym = 0; /* keysym for which the overlay is presented */
static int releaseprotect = 0; /* set to 1 after overlay is shown, protecting against immediate release */
static int tmp_keycode = 1;
static int rows = 0, ww = 0, wh = 0, wx = 0, wy = 0;
+static int simulateoutput = 1; /* simulate key presses for X */
+static int printoutput = 0; /* print key pressed to stdout */
static char *name = "svkbd";
static int debug = 0;
static int numlayers = 0;
@@ -415,6 +418,7 @@ press(Key *k, KeySym mod)
simulate_keypress(mod);
}
simulate_keypress(k->keysym);
+ if (printoutput) printkey(k, mod);
for (i = 0; i < numkeys; i++) {
if (keys[i].pressed && IsModifierKey(keys[i].keysym)) {
@@ -436,8 +440,23 @@ tmp_remap(KeySym keysym)
}
void
+printkey(Key *k, KeySym mod) {
+ if (k->keysym == XK_Cancel) return;
+ const char *l = 0;
+ if ((mod == XK_Shift_L) || (mod == XK_Shift_R) || (mod == XK_Shift_Lock)) {
+ KeySym upper = 0;
+ XConvertCase(k->keysym, NULL, &upper);
+ l = XKeysymToString(upper);
+ } else {
+ l = XKeysymToString(k->keysym);
+ }
+ if (l != 0) printf("%s",l);
+}
+
+void
simulate_keypress(KeySym keysym)
{
+ if (!simulateoutput) return;
KeyCode code = XKeysymToKeycode(dpy, keysym);
if (code == 0)
code = tmp_remap(keysym);
@@ -447,6 +466,7 @@ simulate_keypress(KeySym keysym)
void
simulate_keyrelease(KeySym keysym)
{
+ if (!simulateoutput) return;
KeyCode code = XKeysymToKeycode(dpy, keysym);
if (code == 0)
code = tmp_remap(keysym);
@@ -502,6 +522,7 @@ unpress(Key *k, KeySym mod)
simulate_keypress(mod);
}
simulate_keypress(k->keysym);
+ if (printoutput) printkey(k, mod);
pressbegin.tv_sec = 0;
pressbegin.tv_usec = 0;
}
@@ -778,11 +799,14 @@ updatekeys(void)
void
usage(char *argv0)
{
- fprintf(stderr, "usage: %s [-hdvDO] [-g geometry] [-fn font] [-l layers] [-s initial_layer]\n", argv0);
+ fprintf(stderr, "usage: %s [-hdnovDOR] [-g geometry] [-fn font] [-l layers] [-s initial_layer]\n", argv0);
fprintf(stderr, "Options:\n");
fprintf(stderr, " -d - Set Dock Window Type\n");
fprintf(stderr, " -D - Enable debug\n");
fprintf(stderr, " -O - Disable overlays\n");
+ fprintf(stderr, " -R - Disable press-on-release\n");
+ fprintf(stderr, " -n - Do not simulate key presses for X\n");
+ fprintf(stderr, " -o - Print to standard output\n");
fprintf(stderr, " -l - Comma separated list of layers to enable\n");
fprintf(stderr, " -s - Layer to select on program start\n");
fprintf(stderr, " -H [int] - Height fraction, one key row takes 1/x of the screen height");
@@ -956,6 +980,9 @@ main(int argc, char *argv[])
if ((tmp = getenv("SVKBD_HEIGHTFACTOR")))
heightfactor = atoi(tmp);
+ if ((tmp = getenv("SVKBD_PRESSONRELEASE"))) /* defaults to 1 */
+ pressonrelease = atoi(tmp);
+
/* parse command line arguments */
for (i = 1; argv[i]; i++) {
if (!strcmp(argv[i], "-v")) {
@@ -989,6 +1016,12 @@ main(int argc, char *argv[])
usage(argv[0]);
} else if (!strcmp(argv[i], "-O")) {
enableoverlays = 0;
+ } else if (!strcmp(argv[i], "-o")) {
+ printoutput = 1;
+ } else if (!strcmp(argv[i], "-n")) {
+ simulateoutput = 0;
+ } else if (!strcmp(argv[i], "-R")) {
+ pressonrelease = 0;
} else if (!strcmp(argv[i], "-l")) {
if (i >= argc - 1)
continue;
@@ -1009,6 +1042,9 @@ main(int argc, char *argv[])
}
}
+ if (printoutput)
+ setbuf(stdout, NULL); //unbuffered output
+
if (heightfactor <= 0)
die("height factor must be a positive integer");