From cdeaefaaa2dc75e59016e352fdfe5adf48190c6e Mon Sep 17 00:00:00 2001 From: phillbush Date: Wed, 29 Jul 2020 00:51:08 -0300 Subject: [PATCH] Added support for fallback fonts. Also changed license. --- README | 22 +++- config.h | 4 +- xmenu.1 | 2 + xmenu.c | 365 +++++++++++++++++++++++++++++++++++++------------------ xmenu.h | 15 +-- 5 files changed, 277 insertions(+), 131 deletions(-) diff --git a/README b/README index 290ef37..0004d5d 100644 --- a/README +++ b/README @@ -71,4 +71,24 @@ Read the manual for more information on running XMenu. § License -This software is in public domain and is provided AS IS, with NO WARRANTY. +MIT/X Consortium License + +© 2020 phillbush + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the "Software"), +to deal in the Software without restriction, including without limitation +the rights to use, copy, modify, merge, publish, distribute, sublicense, +and/or sell copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/config.h b/config.h index d6a8807..aec217e 100644 --- a/config.h +++ b/config.h @@ -1,6 +1,6 @@ static struct Config config = { - /* font */ - .font = "monospace:size=9", /* for regular items */ + /* font, separate different fonts with comma */ + .font = "monospace:size=9,DejaVuSansMono:size=9", /* colors */ .background_color = "#FFFFFF", diff --git a/xmenu.1 b/xmenu.1 index f119efc..d87ba4b 100644 --- a/xmenu.1 +++ b/xmenu.1 @@ -97,6 +97,8 @@ understands the following X resources. .TP .B xmenu.font The font in which the labels should be drawn. +Multiple fonts can be added as fallback fonts; +they must be separated by a comma. .TP .B xmenu.background The background color of non-selected items in the menu. diff --git a/xmenu.c b/xmenu.c index 56a3dd4..29ccb66 100644 --- a/xmenu.c +++ b/xmenu.c @@ -1,3 +1,4 @@ +#include #include #include #include @@ -23,6 +24,7 @@ static void parseposition(const char *optarg); /* initializers, and their helper routines */ +static void parsefonts(const char *s); static void ealloccolor(const char *s, XftColor *color); static void initresources(void); static void initdc(void); @@ -38,6 +40,13 @@ static struct Menu *parsestdin(void); /* image loader */ static Imlib_Image loadicon(const char *file); +/* utf8 utils */ +static FcChar32 getnextutf8char(const char *s, const char **end_ret); + +/* pixmap drawers */ +static int drawtext(XftDraw *draw, XftColor *color, int x, int y, unsigned h, const char *text); +static void drawitems(struct Menu *menu); + /* structure setters, and their helper routines */ static void setupitems(struct Menu *menu); static void setupmenupos(struct Menu *menu); @@ -49,14 +58,16 @@ static void grabkeyboard(void); /* window drawers and mappers */ static void mapmenu(struct Menu *currmenu); -static void drawseparator(struct Menu *menu, struct Item *item); -static void drawitem(struct Menu *menu, struct Item *item, XftColor *color); -static void drawmenu(struct Menu *currmenu); +static void copypixmaps(struct Menu *currmenu); -/* main event loop, and its helper routines */ +/* getters */ static struct Menu *getmenu(struct Menu *currmenu, Window win); static struct Item *getitem(struct Menu *menu, int y); + +/* cycle through items */ static struct Item *itemcycle(struct Menu *currmenu, int direction); + +/* main event loop */ static void run(struct Menu *currmenu); /* cleaners */ @@ -202,6 +213,40 @@ error: errx(1, "improper position: %s", optarg); } +/* parse color string */ +static void +parsefonts(const char *s) +{ + const char *p; + char buf[1024]; + size_t nfont = 0; + + dc.nfonts = 1; + for (p = s; *p; p++) + if (*p == ',') + dc.nfonts++; + + if ((dc.fonts = calloc(dc.nfonts, sizeof *dc.fonts)) == NULL) + err(1, "calloc"); + + p = s; + while (*p != '\0') { + size_t i; + + i = 0; + while (isspace(*p)) + p++; + while (*p != '\0' && *p != ',') { + buf[i++] = *p++; + } + if (*p == ',') + p++; + buf[i] = '\0'; + if ((dc.fonts[nfont++] = XftFontOpenName(dpy, screen, buf)) == NULL) + errx(1, "cannot load font"); + } +} + /* get color from color string */ static void ealloccolor(const char *s, XftColor *color) @@ -271,9 +316,8 @@ initdc(void) ealloccolor(config.separator_color, &dc.separator); ealloccolor(config.border_color, &dc.border); - /* try to get font */ - if ((dc.font = XftFontOpenName(dpy, screen, config.font)) == NULL) - errx(1, "cannot load font"); + /* parse fonts */ + parsefonts(config.font); /* create common GC */ dc.gc = XCreateGC(dpy, rootwin, 0, NULL); @@ -507,6 +551,182 @@ loadicon(const char *file) return icon; } +/* get next utf8 char from s return its codepoint and set next_ret to pointer to next character */ +static FcChar32 +getnextutf8char(const char *s, const char **next_ret) +{ + /* */ + static const unsigned char utfbyte[] = {0x80, 0x00, 0xC0, 0xE0, 0xF0}; + /* */ + static const unsigned char utfmask[] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; + /* 0xFFFD is the replacement character, used to represent unknown characters */ + static const FcChar32 utfmin[] = {0, 0x00, 0x80, 0x800, 0x10000}; + static const FcChar32 utfmax[] = {0, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; + static const FcChar32 unknown = 0xFFFD; + FcChar32 ucode; /* FcChar32 type holds 32 bits */ + size_t usize = 0; /* n' of bytes of the utf8 character */ + size_t i; + + *next_ret = s+1; + + /* get code of first byte of utf8 character */ + for (i = 0; i < sizeof utfmask; i++) { + if (((unsigned char)*s & utfmask[i]) == utfbyte[i]) { + usize = i; + ucode = (unsigned char)*s & ~utfmask[i]; + break; + } + } + + /* if first byte is a continuation byte or is not allowed, return unknown */ + if (i == sizeof utfmask || usize == 0) + return unknown; + + /* check the other usize-1 bytes */ + s++; + for (i = 1; i < usize; i++) { + *next_ret = s+1; + /* if byte is EOS or is not a continuation byte, return unknown */ + if (*s == '\0' || ((unsigned char)*s & utfmask[0]) != utfbyte[0]) + return unknown; + /* 6 is the number of relevant bits in the continuation byte */ + ucode = (ucode << 6) | ((unsigned char)*s & ~utfmask[0]); + s++; + } + + /* check if ucode is invalid or in utf-16 surrogate halves */ + if (!BETWEEN(ucode, utfmin[usize], utfmax[usize]) + || BETWEEN (ucode, 0xD800, 0xDFFF)) + return unknown; + + return ucode; +} + +/* draw text into XftDraw */ +static int +drawtext(XftDraw *draw, XftColor *color, int x, int y, unsigned h, const char *text) +{ + const char *s, *nexts; + FcChar32 ucode; + XftFont *currfont; + int textlen = 0; + + s = text; + while (*s) { + XGlyphInfo ext; + int charexists; + size_t len; + size_t i; + + charexists = 0; + ucode = getnextutf8char(s, &nexts); + for (i = 0; i < dc.nfonts; i++) { + charexists = XftCharExists(dpy, dc.fonts[i], ucode); + if (charexists) + break; + } + if (charexists) + currfont = dc.fonts[i]; + + len = nexts - s; + + XftTextExtentsUtf8(dpy, currfont, (XftChar8 *)s, + len, &ext); + textlen += ext.xOff; + + if (draw) { + int texty; + + texty = y + (h + currfont->ascent) / 2; + XftDrawStringUtf8(draw, color, currfont, x, texty, + (XftChar8 *)s, len); + x += ext.xOff; + } + + s = nexts; + } + + return textlen; +} + +/* draw pixmap for the selected and unselected version of each item on menu */ +static void +drawitems(struct Menu *menu) +{ + struct Item *item; + + for (item = menu->list; item != NULL; item = item->next) { + XftDraw *dsel, *dunsel; + int x, y; + + item->unsel = XCreatePixmap(dpy, menu->win, menu->w, item->h, + DefaultDepth(dpy, screen)); + + XSetForeground(dpy, dc.gc, dc.normal[ColorBG].pixel); + XFillRectangle(dpy, item->unsel, dc.gc, 0, 0, menu->w, item->h); + + if (item->label == NULL) { /* item is separator */ + y = item->h/2; + XSetForeground(dpy, dc.gc, dc.separator.pixel); + XDrawLine(dpy, item->unsel, dc.gc, config.horzpadding, y, + menu->w - config.horzpadding, y); + + item->sel = item->unsel; + } else { + + item->sel = XCreatePixmap(dpy, menu->win, menu->w, item->h, + DefaultDepth(dpy, screen)); + XSetForeground(dpy, dc.gc, dc.selected[ColorBG].pixel); + XFillRectangle(dpy, item->sel, dc.gc, 0, 0, menu->w, item->h); + + /* draw text */ + x = config.horzpadding; + x += (iflag) ? 0 : config.horzpadding + config.iconsize; + dsel = XftDrawCreate(dpy, item->sel, visual, colormap); + dunsel = XftDrawCreate(dpy, item->unsel, visual, colormap); + XSetForeground(dpy, dc.gc, dc.selected[ColorFG].pixel); + drawtext(dsel, &dc.selected[ColorFG], x, 0, item->h, item->label); + XSetForeground(dpy, dc.gc, dc.normal[ColorFG].pixel); + drawtext(dunsel, &dc.normal[ColorFG], x, 0, item->h, item->label); + XftDrawDestroy(dsel); + XftDrawDestroy(dunsel); + + /* draw triangle */ + if (item->submenu != NULL) { + x = menu->w - config.triangle_width - config.horzpadding; + y = (item->h - config.triangle_height + 1) / 2; + + XPoint triangle[] = { + {x, y}, + {x + config.triangle_width, y + config.triangle_height/2}, + {x, y + config.triangle_height}, + {x, y} + }; + + XSetForeground(dpy, dc.gc, dc.selected[ColorFG].pixel); + XFillPolygon(dpy, item->sel, dc.gc, triangle, LEN(triangle), + Convex, CoordModeOrigin); + XSetForeground(dpy, dc.gc, dc.normal[ColorFG].pixel); + XFillPolygon(dpy, item->unsel, dc.gc, triangle, LEN(triangle), + Convex, CoordModeOrigin); + } + + /* draw icon */ + if (item->file != NULL && !iflag) { + item->icon = loadicon(item->file); + + imlib_context_set_drawable(item->sel); + imlib_context_set_image(item->icon); + imlib_render_image_on_drawable(config.horzpadding, config.iconpadding); + + imlib_context_set_drawable(item->unsel); + imlib_context_set_image(item->icon); + imlib_render_image_on_drawable(config.horzpadding, config.iconpadding); + } + } + } +} + /* setup the height, width and icon of the items of a menu */ static void setupitems(struct Menu *menu) @@ -526,7 +746,7 @@ setupitems(struct Menu *menu) menu->h += item->h; /* get length of item->label rendered in the font */ - XftTextExtentsUtf8(dpy, dc.font, (XftChar8 *)item->label, + XftTextExtentsUtf8(dpy, dc.fonts[0], (XftChar8 *)item->label, item->labellen, &ext); /* @@ -544,31 +764,6 @@ setupitems(struct Menu *menu) itemwidth = ext.xOff + config.triangle_width + config.horzpadding * 3; itemwidth += (iflag) ? 0 : config.iconsize + config.horzpadding; menu->w = MAX(menu->w, itemwidth); - - /* create icon */ - if (item->file != NULL && !iflag) { - item->icon = loadicon(item->file); - - item->sel = XCreatePixmap(dpy, menu->win, - config.iconsize, config.iconsize, - DefaultDepth(dpy, screen)); - XSetForeground(dpy, dc.gc, dc.selected[ColorBG].pixel); - XFillRectangle(dpy, item->sel, dc.gc, 0, 0, - config.iconsize, config.iconsize); - imlib_context_set_drawable(item->sel); - imlib_context_set_image(item->icon); - imlib_render_image_on_drawable(0, 0); - - item->unsel = XCreatePixmap(dpy, menu->win, - config.iconsize, config.iconsize, - DefaultDepth(dpy, screen)); - XSetForeground(dpy, dc.gc, dc.normal[ColorBG].pixel); - XFillRectangle(dpy, item->unsel, dc.gc, 0, 0, - config.iconsize, config.iconsize); - imlib_context_set_drawable(item->unsel); - imlib_context_set_image(item->icon); - imlib_render_image_on_drawable(0, 0); - } } } @@ -617,6 +812,7 @@ setupmenu(struct Menu *menu, XClassHint *classh) /* setup size and position of menus */ setupitems(menu); + drawitems(menu); setupmenupos(menu); /* update menu geometry */ @@ -641,11 +837,6 @@ setupmenu(struct Menu *menu, XClassHint *classh) sizeh.min_height = sizeh.max_height = menu->h; XSetWMProperties(dpy, menu->win, &wintitle, NULL, NULL, 0, &sizeh, NULL, classh); - /* create pixmap and XftDraw */ - menu->pixmap = XCreatePixmap(dpy, menu->win, menu->w, menu->h, - DefaultDepth(dpy, screen)); - menu->draw = XftDrawCreate(dpy, menu->pixmap, visual, colormap); - /* set WM protocols and ewmh window properties */ XSetWMProtocols(dpy, menu->win, &wmdelete, 1); XChangeProperty(dpy, menu->win, netatom[NetWMName], utf8string, 8, @@ -753,91 +944,22 @@ mapmenu(struct Menu *currmenu) prevmenu = currmenu; } -/* draw separator item */ +/* copy pixmaps of items of the current menu and of its ancestors into menu window */ static void -drawseparator(struct Menu *menu, struct Item *item) -{ - int y; - - y = item->y + item->h/2; - - XSetForeground(dpy, dc.gc, dc.separator.pixel); - XDrawLine(dpy, menu->pixmap, dc.gc, config.horzpadding, y, - menu->w - config.horzpadding, y); -} - -/* draw regular item */ -static void -drawitem(struct Menu *menu, struct Item *item, XftColor *color) -{ - int x, y; - - x = config.horzpadding; - x += (iflag) ? 0 : config.horzpadding + config.iconsize; - y = item->y + (item->h + dc.font->ascent) / 2; - XSetForeground(dpy, dc.gc, color[ColorFG].pixel); - XftDrawStringUtf8(menu->draw, &color[ColorFG], dc.font, - x, y, (XftChar8 *)item->label, item->labellen); - - /* draw triangle, if item contains a submenu */ - if (item->submenu != NULL) { - x = menu->w - config.triangle_width - config.horzpadding; - y = item->y + (item->h - config.triangle_height + 1) / 2; - - XPoint triangle[] = { - {x, y}, - {x + config.triangle_width, y + config.triangle_height/2}, - {x, y + config.triangle_height}, - {x, y} - }; - - XFillPolygon(dpy, menu->pixmap, dc.gc, triangle, LEN(triangle), - Convex, CoordModeOrigin); - } - - /* draw icon */ - if (item->icon != NULL) { - x = config.horzpadding; - y = item->y + config.iconpadding; - if (color == dc.selected) - XCopyArea(dpy, item->sel, menu->pixmap, dc.gc, 0, 0, - menu->w, menu->h, x, y); - else - XCopyArea(dpy, item->unsel, menu->pixmap, dc.gc, 0, 0, - menu->w, menu->h, x, y); - } -} - -/* draw items of the current menu and of its ancestors */ -static void -drawmenu(struct Menu *currmenu) +copypixmaps(struct Menu *currmenu) { struct Menu *menu; struct Item *item; for (menu = currmenu; menu != NULL; menu = menu->parent) { for (item = menu->list; item != NULL; item = item->next) { - XftColor *color; - - /* determine item color */ - if (item == menu->selected && item->label != NULL) - color = dc.selected; + if (item == menu->selected) + XCopyArea(dpy, item->sel, menu->win, dc.gc, 0, 0, + menu->w, item->h, 0, item->y); else - color = dc.normal; - - /* draw item box */ - XSetForeground(dpy, dc.gc, color[ColorBG].pixel); - XFillRectangle(dpy, menu->pixmap, dc.gc, 0, item->y, - menu->w, item->h); - - if (item->label == NULL) /* item is a separator */ - drawseparator(menu, item); - else /* item is a regular item */ - drawitem(menu, item, color); + XCopyArea(dpy, item->unsel, menu->win, dc.gc, 0, 0, + menu->w, item->h, 0, item->y); } - - XCopyArea(dpy, menu->pixmap, menu->win, dc.gc, 0, 0, - menu->w, menu->h, 0, 0); } } @@ -927,7 +1049,7 @@ run(struct Menu *currmenu) switch(ev.type) { case Expose: if (ev.xexpose.count == 0) - drawmenu(currmenu); + copypixmaps(currmenu); break; case MotionNotify: menu = getmenu(currmenu, ev.xbutton.window); @@ -943,7 +1065,7 @@ run(struct Menu *currmenu) currmenu = menu; } mapmenu(currmenu); - drawmenu(currmenu); + copypixmaps(currmenu); break; case ButtonRelease: menu = getmenu(currmenu, ev.xbutton.window); @@ -961,7 +1083,7 @@ selectitem: } mapmenu(currmenu); currmenu->selected = currmenu->list; - drawmenu(currmenu); + copypixmaps(currmenu); break; case ButtonPress: menu = getmenu(currmenu, ev.xbutton.window); @@ -997,12 +1119,12 @@ selectitem: } else break; currmenu->selected = item; - drawmenu(currmenu); + copypixmaps(currmenu); break; case LeaveNotify: previtem = NULL; currmenu->selected = NULL; - drawmenu(currmenu); + copypixmaps(currmenu); break; case ConfigureNotify: menu = getmenu(currmenu, ev.xconfigure.window); @@ -1037,6 +1159,9 @@ cleanmenu(struct Menu *menu) if (item->submenu != NULL) cleanmenu(item->submenu); tmp = item; + XFreePixmap(dpy, item->unsel); + if (tmp->label != NULL) + XFreePixmap(dpy, item->sel); if (tmp->label != tmp->output) free(tmp->label); free(tmp->output); @@ -1051,8 +1176,6 @@ cleanmenu(struct Menu *menu) free(tmp); } - XFreePixmap(dpy, menu->pixmap); - XftDrawDestroy(menu->draw); XDestroyWindow(dpy, menu->win); free(menu); } diff --git a/xmenu.h b/xmenu.h index efecca4..0f32fac 100644 --- a/xmenu.h +++ b/xmenu.h @@ -5,9 +5,10 @@ #define ITEMNEXT 1 /* macros */ -#define LEN(x) (sizeof (x) / sizeof (x[0])) -#define MAX(x,y) ((x)>(y)?(x):(y)) -#define MIN(x,y) ((x)<(y)?(x):(y)) +#define LEN(x) (sizeof (x) / sizeof (x[0])) +#define MAX(x,y) ((x)>(y)?(x):(y)) +#define MIN(x,y) ((x)<(y)?(x):(y)) +#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b)) /* color enum */ enum {ColorFG, ColorBG, ColorLast}; @@ -49,7 +50,9 @@ struct DC { XftColor separator; GC gc; - XftFont *font; + + XftFont **fonts; + size_t nfonts; }; /* menu item structure */ @@ -63,7 +66,7 @@ struct Item { struct Item *prev; /* previous item */ struct Item *next; /* next item */ struct Menu *submenu; /* submenu spawned by clicking on item */ - Drawable sel, unsel; /* pixmap for selected and unselected icons */ + Drawable sel, unsel; /* pixmap for selected and unselected item */ Imlib_Image icon; }; @@ -75,7 +78,5 @@ struct Menu { struct Item *selected; /* item currently selected in the menu */ int x, y, w, h; /* menu geometry */ unsigned level; /* menu level relative to root */ - Drawable pixmap; /* pixmap to draw the menu on */ - XftDraw *draw; Window win; /* menu window to map on the screen */ };