Connor Lane Smith
15 years ago
parent
bff1526d31
commit
b4e63454e5
4 changed files with 561 additions and 205 deletions
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/* See LICENSE file for copyright and license details. */ |
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#include <ctype.h> |
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#include <locale.h> |
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#include <stdarg.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <strings.h> |
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#include <unistd.h> |
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#include <X11/keysym.h> |
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#include <X11/Xlib.h> |
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#include <X11/Xutil.h> |
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#ifdef XINERAMA |
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#include <X11/extensions/Xinerama.h> |
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#endif |
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|
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/* macros */ |
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#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask)) |
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#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH)) |
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#define MIN(a, b) ((a) < (b) ? (a) : (b)) |
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#define MAX(a, b) ((a) > (b) ? (a) : (b)) |
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#define IS_UTF8_1ST_CHAR(c) ((((c) & 0xc0) == 0xc0) || !((c) & 0x80)) |
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|
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/* forward declarations */ |
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static void cleanup(void); |
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static void drawcursor(void); |
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static void drawinput(void); |
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static void eprint(const char *errstr, ...); |
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static Bool grabkeyboard(void); |
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static void kpress(XKeyEvent * e); |
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static void run(void); |
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static void setup(Bool topbar); |
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|
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#include "config.h" |
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|
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/* variables */ |
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static char *prompt = NULL; |
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static char text[4096]; |
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static int promptw = 0; |
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static int ret = 0; |
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static int screen; |
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static unsigned int mw, mh; |
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static unsigned int cursor = 0; |
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static unsigned int numlockmask = 0; |
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static Bool running = True; |
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static Display *dpy; |
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static Window parent, win; |
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|
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#include "draw.c" |
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|
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void |
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cleanup(void) { |
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dccleanup(); |
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XDestroyWindow(dpy, win); |
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XUngrabKeyboard(dpy, CurrentTime); |
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} |
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|
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void |
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drawcursor(void) { |
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XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 }; |
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|
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r.x += textnw(text, cursor) + dc.font.height / 2; |
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|
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XSetForeground(dpy, dc.gc, dc.norm[ColFG]); |
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XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); |
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} |
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|
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void |
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drawinput(void) |
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{ |
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dc.x = 0; |
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dc.y = 0; |
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dc.w = mw; |
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dc.h = mh; |
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drawtext(NULL, dc.norm); |
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/* print prompt? */ |
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if(prompt) { |
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dc.w = promptw; |
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drawtext(prompt, dc.sel); |
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dc.x += dc.w; |
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} |
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dc.w = mw - dc.x; |
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drawtext(*text ? text : NULL, dc.norm); |
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drawcursor(); |
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XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0); |
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XFlush(dpy); |
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} |
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|
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void |
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eprint(const char *errstr, ...) { |
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va_list ap; |
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|
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va_start(ap, errstr); |
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vfprintf(stderr, errstr, ap); |
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va_end(ap); |
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exit(EXIT_FAILURE); |
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} |
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|
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Bool |
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grabkeyboard(void) { |
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unsigned int len; |
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|
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for(len = 1000; len; len--) { |
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if(XGrabKeyboard(dpy, parent, True, GrabModeAsync, GrabModeAsync, CurrentTime) |
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== GrabSuccess) |
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break; |
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usleep(1000); |
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} |
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return len > 0; |
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} |
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|
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void |
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kpress(XKeyEvent * e) { |
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char buf[sizeof text]; |
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int num; |
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unsigned int i, len; |
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KeySym ksym; |
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|
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len = strlen(text); |
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num = XLookupString(e, buf, sizeof buf, &ksym, NULL); |
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if(ksym == XK_KP_Enter) |
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ksym = XK_Return; |
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else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) |
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ksym = (ksym - XK_KP_0) + XK_0; |
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else if(IsFunctionKey(ksym) || IsKeypadKey(ksym) |
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|| IsMiscFunctionKey(ksym) || IsPFKey(ksym) |
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|| IsPrivateKeypadKey(ksym)) |
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return; |
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/* first check if a control mask is omitted */ |
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if(e->state & ControlMask) { |
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switch(tolower(ksym)) { |
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default: |
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return; |
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case XK_a: |
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ksym = XK_Home; |
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break; |
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case XK_b: |
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ksym = XK_Left; |
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break; |
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case XK_c: |
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ksym = XK_Escape; |
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break; |
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case XK_e: |
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ksym = XK_End; |
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break; |
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case XK_f: |
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ksym = XK_Right; |
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break; |
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case XK_h: |
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ksym = XK_BackSpace; |
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break; |
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case XK_j: |
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ksym = XK_Return; |
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break; |
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case XK_k: |
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text[cursor] = '\0'; |
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break; |
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case XK_u: |
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memmove(text, text + cursor, sizeof text - cursor + 1); |
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cursor = 0; |
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break; |
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case XK_w: |
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if(cursor > 0) { |
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i = cursor; |
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while(i-- > 0 && text[i] == ' '); |
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while(i-- > 0 && text[i] != ' '); |
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memmove(text + i + 1, text + cursor, sizeof text - cursor + 1); |
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cursor = i + 1; |
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} |
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break; |
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case XK_y: |
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{ |
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FILE *fp; |
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char *s; |
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if(!(fp = popen("sselp", "r"))) |
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eprint("dinput: cannot popen sselp\n"); |
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s = fgets(buf, sizeof buf, fp); |
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pclose(fp); |
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if(s == NULL) |
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return; |
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} |
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num = strlen(buf); |
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if(num && buf[num-1] == '\n') |
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buf[--num] = '\0'; |
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break; |
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} |
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} |
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switch(ksym) { |
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default: |
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num = MIN(num, sizeof text - cursor); |
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if(num && !iscntrl((int) buf[0])) { |
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memmove(text + cursor + num, text + cursor, sizeof text - cursor - num); |
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memcpy(text + cursor, buf, num); |
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cursor += num; |
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} |
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break; |
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case XK_BackSpace: |
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if(cursor == 0) |
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return; |
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for(i = 1; cursor - i > 0 && !IS_UTF8_1ST_CHAR(text[cursor - i]); i++); |
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memmove(text + cursor - i, text + cursor, sizeof text - cursor + i); |
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cursor -= i; |
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break; |
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case XK_Delete: |
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if(cursor == len) |
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return; |
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for(i = 1; cursor + i < len && !IS_UTF8_1ST_CHAR(text[cursor + i]); i++); |
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memmove(text + cursor, text + cursor + i, sizeof text - cursor); |
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break; |
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case XK_End: |
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cursor = len; |
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break; |
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case XK_Escape: |
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ret = 1; |
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running = False; |
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return; |
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case XK_Home: |
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cursor = 0; |
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break; |
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case XK_Left: |
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if(cursor == 0) |
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return; |
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while(cursor-- > 0 && !IS_UTF8_1ST_CHAR(text[cursor])); |
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break; |
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case XK_Return: |
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fprintf(stdout, "%s", text); |
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fflush(stdout); |
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running = False; |
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return; |
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case XK_Right: |
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if(cursor == len) |
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return; |
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while(cursor++ < len && !IS_UTF8_1ST_CHAR(text[cursor])); |
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break; |
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} |
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drawinput(); |
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} |
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|
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void |
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run(void) { |
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XEvent ev; |
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/* main event loop */ |
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while(running && !XNextEvent(dpy, &ev)) |
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switch (ev.type) { |
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case KeyPress: |
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kpress(&ev.xkey); |
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break; |
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case Expose: |
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if(ev.xexpose.count == 0) |
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drawinput(); |
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break; |
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case VisibilityNotify: |
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if (ev.xvisibility.state != VisibilityUnobscured) |
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XRaiseWindow(dpy, win); |
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break; |
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} |
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} |
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|
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void |
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setup(Bool topbar) { |
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int i, j, x, y; |
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#if XINERAMA |
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int n; |
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XineramaScreenInfo *info = NULL; |
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#endif |
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XModifierKeymap *modmap; |
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XSetWindowAttributes wa; |
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XWindowAttributes pwa; |
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/* init modifier map */ |
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modmap = XGetModifierMapping(dpy); |
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for(i = 0; i < 8; i++) |
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for(j = 0; j < modmap->max_keypermod; j++) { |
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if(modmap->modifiermap[i * modmap->max_keypermod + j] |
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== XKeysymToKeycode(dpy, XK_Num_Lock)) |
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numlockmask = (1 << i); |
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} |
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XFreeModifiermap(modmap); |
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|
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/* style */ |
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dc.norm[ColBG] = getcolor(normbgcolor); |
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dc.norm[ColFG] = getcolor(normfgcolor); |
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dc.sel[ColBG] = getcolor(selbgcolor); |
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dc.sel[ColFG] = getcolor(selfgcolor); |
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initfont(font); |
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|
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/* menu window */ |
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wa.override_redirect = True; |
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wa.background_pixmap = ParentRelative; |
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wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask; |
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|
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/* menu window geometry */ |
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mh = (dc.font.height + 2); |
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#if XINERAMA |
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if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) { |
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i = 0; |
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if(n > 1) { |
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int di; |
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unsigned int dui; |
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Window dummy; |
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if(XQueryPointer(dpy, parent, &dummy, &dummy, &x, &y, &di, &di, &dui)) |
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for(i = 0; i < n; i++) |
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if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height)) |
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break; |
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} |
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x = info[i].x_org; |
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y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh; |
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mw = info[i].width; |
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XFree(info); |
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} |
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else |
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#endif |
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{ |
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XGetWindowAttributes(dpy, parent, &pwa); |
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x = 0; |
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y = topbar ? 0 : pwa.height - mh; |
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mw = pwa.width; |
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} |
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|
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win = XCreateWindow(dpy, parent, x, y, mw, mh, 0, |
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DefaultDepth(dpy, screen), CopyFromParent, |
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DefaultVisual(dpy, screen), |
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CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); |
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|
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/* pixmap */ |
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dcsetup(); |
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if(prompt) |
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promptw = MIN(textw(prompt), mw / 5); |
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cursor = strlen(text); |
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XMapRaised(dpy, win); |
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} |
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|
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int |
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main(int argc, char *argv[]) { |
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unsigned int i; |
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Bool topbar = True; |
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|
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/* command line args */ |
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for(i = 1; i < argc; i++) |
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if(!strcmp(argv[i], "-b")) |
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topbar = False; |
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else if(!strcmp(argv[i], "-e")) { |
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if(++i < argc) parent = atoi(argv[i]); |
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} |
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else if(!strcmp(argv[i], "-fn")) { |
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if(++i < argc) font = argv[i]; |
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} |
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else if(!strcmp(argv[i], "-nb")) { |
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if(++i < argc) normbgcolor = argv[i]; |
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} |
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else if(!strcmp(argv[i], "-nf")) { |
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if(++i < argc) normfgcolor = argv[i]; |
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} |
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else if(!strcmp(argv[i], "-p")) { |
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if(++i < argc) prompt = argv[i]; |
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} |
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else if(!strcmp(argv[i], "-sb")) { |
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if(++i < argc) selbgcolor = argv[i]; |
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} |
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else if(!strcmp(argv[i], "-sf")) { |
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if(++i < argc) selfgcolor = argv[i]; |
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} |
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else if(!strcmp(argv[i], "-v")) |
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eprint("dinput-"VERSION", © 2006-2010 dinput engineers, see LICENSE for details\n"); |
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else if(!*text) |
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strncpy(text, argv[i], sizeof text); |
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else |
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eprint("usage: dinput [-b] [-e <xid>] [-fn <font>] [-nb <color>] [-nf <color>]\n" |
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" [-p <prompt>] [-sb <color>] [-sf <color>] [-v] [<text>]\n"); |
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if(!setlocale(LC_CTYPE, "") || !XSupportsLocale()) |
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fprintf(stderr, "dinput: warning: no locale support\n"); |
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if(!(dpy = XOpenDisplay(NULL))) |
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eprint("dinput: cannot open display\n"); |
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screen = DefaultScreen(dpy); |
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if(!parent) |
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parent = RootWindow(dpy, screen); |
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running = grabkeyboard(); |
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setup(topbar); |
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drawinput(); |
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XSync(dpy, False); |
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run(); |
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cleanup(); |
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XCloseDisplay(dpy); |
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return ret; |
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} |
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@ -0,0 +1,143 @@ |
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/* See LICENSE file for copyright and license details. */ |
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|
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/* enums */ |
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enum { ColFG, ColBG, ColLast }; |
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|
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/* typedefs */ |
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typedef struct { |
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int x, y, w, h; |
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unsigned long norm[ColLast]; |
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unsigned long sel[ColLast]; |
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Drawable drawable; |
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GC gc; |
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struct { |
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XFontStruct *xfont; |
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XFontSet set; |
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int ascent; |
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int descent; |
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int height; |
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} font; |
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} DC; /* draw context */ |
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|
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/* forward declarations */ |
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static void dccleanup(void); |
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static void dcsetup(void); |
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static void drawtext(const char *text, unsigned long col[ColLast]); |
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static unsigned long getcolor(const char *colstr); |
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static void initfont(const char *fontstr); |
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static int textnw(const char *text, unsigned int len); |
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static int textw(const char *text); |
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static DC dc; |
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void |
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dccleanup(void) { |
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if(dc.font.set) |
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XFreeFontSet(dpy, dc.font.set); |
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else |
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XFreeFont(dpy, dc.font.xfont); |
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XFreePixmap(dpy, dc.drawable); |
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XFreeGC(dpy, dc.gc); |
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} |
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|
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void |
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dcsetup() { |
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/* style */ |
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dc.norm[ColBG] = getcolor(normbgcolor); |
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dc.norm[ColFG] = getcolor(normfgcolor); |
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dc.sel[ColBG] = getcolor(selbgcolor); |
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dc.sel[ColFG] = getcolor(selfgcolor); |
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initfont(font); |
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|
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/* pixmap */ |
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dc.drawable = XCreatePixmap(dpy, parent, mw, mh, DefaultDepth(dpy, screen)); |
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dc.gc = XCreateGC(dpy, parent, 0, NULL); |
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XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); |
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if(!dc.font.set) |
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XSetFont(dpy, dc.gc, dc.font.xfont->fid); |
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} |
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|
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void |
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drawtext(const char *text, unsigned long col[ColLast]) { |
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char buf[256]; |
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int i, x, y, h, len, olen; |
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XRectangle r = { dc.x, dc.y, dc.w, dc.h }; |
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|
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XSetForeground(dpy, dc.gc, col[ColBG]); |
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XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); |
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if(!text) |
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return; |
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olen = strlen(text); |
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h = dc.font.height; |
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y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent; |
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x = dc.x + (h / 2); |
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/* shorten text if necessary */ |
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for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--); |
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if(!len) |
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return; |
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memcpy(buf, text, len); |
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if(len < olen) |
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for(i = len; i && i > len - 3; buf[--i] = '.'); |
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XSetForeground(dpy, dc.gc, col[ColFG]); |
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if(dc.font.set) |
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XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); |
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else |
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XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len); |
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} |
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|
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unsigned long |
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getcolor(const char *colstr) { |
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Colormap cmap = DefaultColormap(dpy, screen); |
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XColor color; |
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|
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if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) |
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eprint("drawtext: cannot allocate color '%s'\n", colstr); |
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return color.pixel; |
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} |
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|
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void |
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initfont(const char *fontstr) { |
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char *def, **missing = NULL; |
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int i, n; |
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|
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if(!fontstr || fontstr[0] == '\0') |
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eprint("drawtext: cannot load font: '%s'\n", fontstr); |
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dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); |
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if(missing) |
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XFreeStringList(missing); |
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if(dc.font.set) { |
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XFontStruct **xfonts; |
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char **font_names; |
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dc.font.ascent = dc.font.descent = 0; |
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n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); |
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for(i = 0; i < n; i++) { |
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dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent); |
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dc.font.descent = MAX(dc.font.descent, (*xfonts)->descent); |
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xfonts++; |
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} |
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} |
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else { |
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if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)) |
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&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed"))) |
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eprint("drawtext: cannot load font: '%s'\n", fontstr); |
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dc.font.ascent = dc.font.xfont->ascent; |
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dc.font.descent = dc.font.xfont->descent; |
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} |
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dc.font.height = dc.font.ascent + dc.font.descent; |
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} |
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|
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int |
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textnw(const char *text, unsigned int len) { |
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XRectangle r; |
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|
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if(dc.font.set) { |
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XmbTextExtents(dc.font.set, text, len, NULL, &r); |
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return r.width; |
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} |
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return XTextWidth(dc.font.xfont, text, len); |
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} |
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|
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int |
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textw(const char *text) { |
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return textnw(text, strlen(text)) + dc.font.height; |
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} |
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