X-Git-Url: https://git.xinqibao.xyz/dmenu.git/blobdiff_plain/8623bf5d196cb0bed4bdca025f23664b2bdcdd8b..b4e63454e5768d38682405d252a81b1149273c0b:/dmenu.c?ds=inline

diff --git a/dmenu.c b/dmenu.c
index 3fd9275..5434eab 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -19,25 +19,7 @@
 #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
 #define MIN(a, b)               ((a) < (b) ? (a) : (b))
 #define MAX(a, b)               ((a) > (b) ? (a) : (b))
-
-/* enums */
-enum { ColFG, ColBG, ColLast };
-
-/* typedefs */
-typedef struct {
-	int x, y, w, h;
-	unsigned long norm[ColLast];
-	unsigned long sel[ColLast];
-	Drawable drawable;
-	GC gc;
-	struct {
-		XFontStruct *xfont;
-		XFontSet set;
-		int ascent;
-		int descent;
-		int height;
-	} font;
-} DC; /* draw context */
+#define IS_UTF8_1ST_CHAR(c)     ((((c) & 0xc0) == 0xc0) || !((c) & 0x80))
 
 typedef struct Item Item;
 struct Item {
@@ -52,22 +34,16 @@ static void calcoffsetsh(void);
 static void calcoffsetsv(void);
 static char *cistrstr(const char *s, const char *sub);
 static void cleanup(void);
-static void drawcursor(void);
 static void drawmenu(void);
 static void drawmenuh(void);
 static void drawmenuv(void);
-static void drawtext(const char *text, unsigned long col[ColLast]);
 static void eprint(const char *errstr, ...);
-static unsigned long getcolor(const char *colstr);
 static Bool grabkeyboard(void);
-static void initfont(const char *fontstr);
 static void kpress(XKeyEvent * e);
 static void match(char *pattern);
 static void readstdin(void);
 static void run(void);
 static void setup(Bool topbar);
-static int textnw(const char *text, unsigned int len);
-static int textw(const char *text);
 
 #include "config.h"
 
@@ -78,13 +54,11 @@ static char text[4096];
 static int cmdw = 0;
 static int promptw = 0;
 static int ret = 0;
-static int cursor = 0;
 static int screen;
 static unsigned int mw, mh;
 static unsigned int numlockmask = 0;
 static Bool running = True;
 static Display *dpy;
-static DC dc;
 static Item *allitems = NULL;  /* first of all items */
 static Item *item = NULL;      /* first of pattern matching items */
 static Item *sel = NULL;
@@ -92,11 +66,13 @@ static Item *next = NULL;
 static Item *prev = NULL;
 static Item *curr = NULL;
 static Window parent, win;
-static int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
+static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
 static char *(*fstrstr)(const char *, const char *) = strstr;
 static unsigned int lines = 0;
 static void (*calcoffsets)(void) = calcoffsetsh;
 
+#include "draw.c"
+
 void
 appenditem(Item *i, Item **list, Item **last) {
 	if(!(*last))
@@ -110,45 +86,30 @@ appenditem(Item *i, Item **list, Item **last) {
 
 void
 calcoffsetsh(void) {
-	int tw;
 	unsigned int w;
 
 	if(!curr)
 		return;
 	w = promptw + cmdw + 2 * spaceitem;
-	for(next = curr; next; next=next->right) {
-		tw = MIN(textw(next->text), mw / 3);
-		w += tw;
-		if(w > mw)
-			break;
-	}
+	for(next = curr; next && w < mw; next=next->right)
+		w += MIN(textw(next->text), mw / 3);
 	w = promptw + cmdw + 2 * spaceitem;
-	for(prev = curr; prev && prev->left; prev=prev->left) {
-		tw = MIN(textw(prev->left->text), mw / 3);
-		w += tw;
-		if(w > mw)
-			break;
-	}
+	for(prev = curr; prev && prev->left && w < mw; prev=prev->left)
+		w += MIN(textw(prev->left->text), mw / 3);
 }
 
 void
 calcoffsetsv(void) {
-	static unsigned int h;
+	unsigned int h;
 
 	if(!curr)
 		return;
-	h = (dc.font.height + 2) * (lines + 1);
-	for(next = curr; next; next=next->right) {
+	h = (dc.font.height + 2) * lines;
+	for(next = curr; next && h > 0; next = next->right)
 		h -= dc.font.height + 2;
-		if(h <= 0)
-			break;
-	}
-	h = (dc.font.height + 2) * (lines + 1);
-	for(prev = curr; prev && prev->left; prev=prev->left) {
+	h = (dc.font.height + 2) * lines;
+	for(prev = curr; prev && prev->left && h > 0; prev = prev->left)
 		h -= dc.font.height + 2;
-		if(h <= 0)
-			break;
-	}
 }
 
 char *
@@ -158,8 +119,7 @@ cistrstr(const char *s, const char *sub) {
 
 	if(!sub)
 		return (char *)s;
-	if((c = *sub++) != '\0') {
-		c = tolower(c);
+	if((c = tolower(*sub++)) != '\0') {
 		len = strlen(sub);
 		do {
 			do {
@@ -176,34 +136,11 @@ cistrstr(const char *s, const char *sub) {
 
 void
 cleanup(void) {
-	Item *itm;
-
-	while(allitems) {
-		itm = allitems->next;
-		free(allitems->text);
-		free(allitems);
-		allitems = itm;
-	}
-	if(dc.font.set)
-		XFreeFontSet(dpy, dc.font.set);
-	else
-		XFreeFont(dpy, dc.font.xfont);
-	XFreePixmap(dpy, dc.drawable);
-	XFreeGC(dpy, dc.gc);
+	dccleanup();
 	XDestroyWindow(dpy, win);
 	XUngrabKeyboard(dpy, CurrentTime);
 }
 
-void
-drawcursor(void) {
-	XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 };
-
-	r.x += textnw(text, cursor) + dc.font.height / 2;
-
-	XSetForeground(dpy, dc.gc, dc.norm[ColFG]);
-	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
-}
-
 void
 drawmenu(void) {
 	dc.x = 0;
@@ -221,8 +158,7 @@ drawmenu(void) {
 	/* print command */
 	if(cmdw && item && lines == 0)
 		dc.w = cmdw;
-	drawtext(text[0] ? text : NULL, dc.norm);
-	drawcursor();
+	drawtext(*text ? text : NULL, dc.norm);
 	if(curr) {
 		if(lines > 0)
 			drawmenuv();
@@ -256,42 +192,16 @@ drawmenuv(void) {
 	Item *i;
 
 	dc.w = mw - dc.x;
-	dc.y += dc.font.height + 2;
+	dc.h = dc.font.height + 2;
+	dc.y = dc.h;
 	for(i = curr; i != next; i=i->right) {
 		drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
-		dc.y += dc.font.height + 2;
+		dc.y += dc.h;
 	}
+	dc.h = mh - dc.y;
 	drawtext(NULL, dc.norm);
 }
 
-void
-drawtext(const char *text, unsigned long col[ColLast]) {
-	char buf[256];
-	int i, x, y, h, len, olen;
-	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
-
-	XSetForeground(dpy, dc.gc, col[ColBG]);
-	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
-	if(!text)
-		return;
-	olen = strlen(text);
-	h = dc.font.height;
-	y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent;
-	x = dc.x + (h / 2);
-	/* shorten text if necessary */
-	for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
-	if(!len)
-		return;
-	memcpy(buf, text, len);
-	if(len < olen)
-		for(i = len; i && i > len - 3; buf[--i] = '.');
-	XSetForeground(dpy, dc.gc, col[ColFG]);
-	if(dc.font.set)
-		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
-	else
-		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
-}
-
 void
 eprint(const char *errstr, ...) {
 	va_list ap;
@@ -302,16 +212,6 @@ eprint(const char *errstr, ...) {
 	exit(EXIT_FAILURE);
 }
 
-unsigned long
-getcolor(const char *colstr) {
-	Colormap cmap = DefaultColormap(dpy, screen);
-	XColor color;
-
-	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
-		eprint("error, cannot allocate color '%s'\n", colstr);
-	return color.pixel;
-}
-
 Bool
 grabkeyboard(void) {
 	unsigned int len;
@@ -325,170 +225,95 @@ grabkeyboard(void) {
 	return len > 0;
 }
 
-void
-initfont(const char *fontstr) {
-	char *def, **missing;
-	int i, n;
-
-	if(!fontstr || fontstr[0] == '\0')
-		eprint("error, cannot load font: '%s'\n", fontstr);
-	missing = NULL;
-	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
-	if(missing)
-		XFreeStringList(missing);
-	if(dc.font.set) {
-		XFontStruct **xfonts;
-		char **font_names;
-		dc.font.ascent = dc.font.descent = 0;
-		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
-		for(i = 0; i < n; i++) {
-			dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
-			dc.font.descent = MAX(dc.font.descent, (*xfonts)->descent);
-			xfonts++;
-		}
-	}
-	else {
-		if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
-		&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
-			eprint("error, cannot load font: '%s'\n", fontstr);
-		dc.font.ascent = dc.font.xfont->ascent;
-		dc.font.descent = dc.font.xfont->descent;
-	}
-	dc.font.height = dc.font.ascent + dc.font.descent;
-}
-
 void
 kpress(XKeyEvent * e) {
 	char buf[sizeof text];
-	int i, num;
-	unsigned int len;
+	int num;
+	unsigned int i, len;
 	KeySym ksym;
 
 	len = strlen(text);
-	buf[0] = '\0';
 	num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
-	if(IsKeypadKey(ksym)) {
-		if(ksym == XK_KP_Enter)
-			ksym = XK_Return;
-		else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
-			ksym = (ksym - XK_KP_0) + XK_0;
-	}
-	if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
-	   || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
-	   || IsPrivateKeypadKey(ksym))
+	if(ksym == XK_KP_Enter)
+		ksym = XK_Return;
+	else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
+		ksym = (ksym - XK_KP_0) + XK_0;
+	else if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
+	|| IsMiscFunctionKey(ksym) || IsPFKey(ksym)
+	|| IsPrivateKeypadKey(ksym))
 		return;
 	/* first check if a control mask is omitted */
 	if(e->state & ControlMask) {
-		switch (ksym) {
-		default:	/* ignore other control sequences */
+		switch(tolower(ksym)) {
+		default:
 			return;
 		case XK_a:
-		case XK_A:
 			ksym = XK_Home;
 			break;
+		case XK_b:
+			ksym = XK_Left;
+			break;
 		case XK_c:
-		case XK_C:
 			ksym = XK_Escape;
 			break;
 		case XK_e:
-		case XK_E:
 			ksym = XK_End;
 			break;
+		case XK_f:
+			ksym = XK_Right;
+			break;
 		case XK_h:
-		case XK_H:
 			ksym = XK_BackSpace;
 			break;
 		case XK_i:
-		case XK_I:
 			ksym = XK_Tab;
 			break;
 		case XK_j:
-		case XK_J:
 			ksym = XK_Return;
 			break;
+		case XK_n:
+			ksym = XK_Down;
+			break;
+		case XK_p:
+			ksym = XK_Up;
+			break;
 		case XK_u:
-		case XK_U:
-			memmove(text, text + cursor, sizeof text - cursor + 1);
-			cursor = 0;
+			text[0] = '\0';
 			match(text);
 			break;
 		case XK_w:
-		case XK_W:
-			if(cursor > 0) {
-				i = cursor;
-				while(i-- > 0 && text[i] == ' ');
-				while(i-- > 0 && text[i] != ' ');
-				memmove(text + i + 1, text + cursor, sizeof text - cursor + 1);
-				cursor = i + 1;
-				match(text);
-			}
-			break;
-		}
-	}
-	if(CLEANMASK(e->state) & Mod1Mask) {
-		switch(ksym) {
-		default: return;
-		case XK_h:
-			ksym = XK_Left;
-			break;
-		case XK_l:
-			ksym = XK_Right;
-			break;
-		case XK_j:
-			ksym = XK_Next;
-			break;
-		case XK_k:
-			ksym = XK_Prior;
-			break;
-		case XK_g:
-			ksym = XK_Home;
+			if(len == 0)
+				return;
+			i = len;
+			while(i-- > 0 && text[i] == ' ');
+			while(i-- > 0 && text[i] != ' ');
+			text[++i] = '\0';
+			match(text);
 			break;
-		case XK_G:
-			ksym = XK_End;
-			break;
-		case XK_p:
-			{
-				FILE *fp;
-				char *s;
-				if(!(fp = (FILE*)popen("sselp", "r")))
-					eprint("dmenu: Could not popen sselp\n");
-				s = fgets(buf, sizeof buf, fp);
-				pclose(fp);
-				if(s == NULL)
-					return;
-			}
-			num = strlen(buf);
-			if(num && buf[num-1] == '\n')
-				buf[--num] = '\0';
+		case XK_x:
+			execlp("dinput", "dinput", text, NULL); /* todo: argv */
+			eprint("dmenu: cannot exec dinput:");
 			break;
 		}
 	}
 	switch(ksym) {
 	default:
-		num = MIN(num, sizeof text - cursor);
+		num = MIN(num, sizeof text);
 		if(num && !iscntrl((int) buf[0])) {
-			memmove(text + cursor + num, text + cursor, sizeof text - cursor - num);
-			memcpy(text + cursor, buf, num);
-			cursor+=num;
+			memcpy(text + len, buf, num + 1);
+			len += num;
 			match(text);
 		}
 		break;
 	case XK_BackSpace:
-		if(cursor > 0) {
-			memmove(text + cursor - 1, text + cursor, sizeof text - cursor + 1);
-			cursor--;
-			match(text);
-		}
-		break;
-	case XK_Delete:
-		memmove(text + cursor, text + cursor + 1, sizeof text - cursor);
+		if(len == 0)
+			return;
+		for(i = 1; len - i > 0 && !IS_UTF8_1ST_CHAR(text[len - i]); i++);
+		len -= i;
+		text[len] = '\0';
 		match(text);
 		break;
 	case XK_End:
-		if(cursor < len) {
-			cursor = len;
-			break;
-		}
 		while(next) {
 			sel = curr = next;
 			calcoffsets();
@@ -499,28 +324,20 @@ kpress(XKeyEvent * e) {
 	case XK_Escape:
 		ret = 1;
 		running = False;
-		break;
+		return;
 	case XK_Home:
-		if(sel == item) {
-			cursor = 0;
-			break;
-		}
 		sel = curr = item;
 		calcoffsets();
 		break;
 	case XK_Left:
 	case XK_Up:
-		if(sel && sel->left){
-			sel=sel->left;
-			if(sel->right == curr) {
-				curr = prev;
-				calcoffsets();
-			}
-		}
-		else if(cursor > 0)
-			cursor--;
-		else
+		if(!sel || !sel->left)
 			return;
+		sel = sel->left;
+		if(sel->right == curr) {
+			curr = prev;
+			calcoffsets();
+		}
 		break;
 	case XK_Next:
 		if(!next)
@@ -541,26 +358,21 @@ kpress(XKeyEvent * e) {
 			fprintf(stdout, "%s", sel->text);
 		fflush(stdout);
 		running = False;
-		break;
+		return;
 	case XK_Right:
 	case XK_Down:
-		if(cursor < len)
-			cursor++;
-		else if(sel && sel->right) {
-			sel=sel->right;
-			if(sel == next) {
-				curr = next;
-				calcoffsets();
-			}
-		}
-		else
+		if(!sel || !sel->right)
 			return;
+		sel = sel->right;
+		if(sel == next) {
+			curr = next;
+			calcoffsets();
+		}
 		break;
 	case XK_Tab:
 		if(!sel)
 			return;
 		strncpy(text, sel->text, sizeof text);
-		cursor = strlen(text);
 		match(text);
 		break;
 	}
@@ -620,13 +432,11 @@ readstdin(void) {
 		if(buf[len-1] == '\n')
 			buf[--len] = '\0';
 		if(!(p = strdup(buf)))
-			eprint("fatal: could not strdup() %u bytes\n", len);
-		if(max < len || !maxname) {
+			eprint("dmenu: cannot strdup %u bytes\n", len);
+		if((max = MAX(max, len)) == len)
 			maxname = p;
-			max = len;
-		}
-		if(!(new = (Item *)malloc(sizeof(Item))))
-			eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
+		if(!(new = malloc(sizeof *new)))
+			eprint("dmenu: cannot malloc %u bytes\n", sizeof *new);
 		new->next = new->left = new->right = NULL;
 		new->text = p;
 		if(!i)
@@ -644,8 +454,6 @@ run(void) {
 	/* main event loop */
 	while(running && !XNextEvent(dpy, &ev))
 		switch (ev.type) {
-		default:	/* ignore all crap */
-			break;
 		case KeyPress:
 			kpress(&ev.xkey);
 			break;
@@ -727,11 +535,7 @@ setup(Bool topbar) {
 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
 
 	/* pixmap */
-	dc.drawable = XCreatePixmap(dpy, parent, mw, mh, DefaultDepth(dpy, screen));
-	dc.gc = XCreateGC(dpy, parent, 0, NULL);
-	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
-	if(!dc.font.set)
-		XSetFont(dpy, dc.gc, dc.font.xfont->fid);
+	dcsetup();
 	if(maxname)
 		cmdw = MIN(textw(maxname), mw / 3);
 	if(prompt)
@@ -741,22 +545,6 @@ setup(Bool topbar) {
 	XMapRaised(dpy, win);
 }
 
-int
-textnw(const char *text, unsigned int len) {
-	XRectangle r;
-
-	if(dc.font.set) {
-		XmbTextExtents(dc.font.set, text, len, NULL, &r);
-		return r.width;
-	}
-	return XTextWidth(dc.font.xfont, text, len);
-}
-
-int
-textw(const char *text) {
-	return textnw(text, strlen(text)) + dc.font.height;
-}
-
 int
 main(int argc, char *argv[]) {
 	unsigned int i;
@@ -774,8 +562,9 @@ main(int argc, char *argv[]) {
 			if(++i < argc) parent = atoi(argv[i]);
 		}
 		else if(!strcmp(argv[i], "-l")) {
-			calcoffsets = calcoffsetsv;
 			if(++i < argc) lines = atoi(argv[i]);
+			if(lines > 0)
+				calcoffsets = calcoffsetsv;
 		}
 		else if(!strcmp(argv[i], "-fn")) {
 			if(++i < argc) font = argv[i];
@@ -801,7 +590,7 @@ main(int argc, char *argv[]) {
 			eprint("usage: dmenu [-i] [-b] [-e <xid>] [-l <lines>] [-fn <font>] [-nb <color>]\n"
 			       "             [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
 	if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
-		fprintf(stderr, "warning: no locale support\n");
+		fprintf(stderr, "dmenu: warning: no locale support\n");
 	if(!(dpy = XOpenDisplay(NULL)))
 		eprint("dmenu: cannot open display\n");
 	screen = DefaultScreen(dpy);