Anselm R. Garbe
19 years ago
parent
dbf7e03996
commit
8a34fa50f7
11 changed files with 328 additions and 36 deletions
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/*
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* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> |
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* See LICENSE file for license details. |
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*/ |
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#define FONT "fixed" |
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#define FGCOLOR "#000000" |
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#define BGCOLOR "#ffaa00" |
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#define BOCOLOR "#000000" |
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/*
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* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com> |
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* See LICENSE file for license details. |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include "draw.h" |
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#include "util.h" |
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static void |
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drawborder(Display *dpy, Brush *b) |
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{ |
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XPoint points[5]; |
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XSetLineAttributes(dpy, b->gc, 1, LineSolid, CapButt, JoinMiter); |
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XSetForeground(dpy, b->gc, b->color.border); |
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points[0].x = b->rect.x; |
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points[0].y = b->rect.y; |
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points[1].x = b->rect.width - 1; |
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points[1].y = 0; |
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points[2].x = 0; |
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points[2].y = b->rect.height - 1; |
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points[3].x = -(b->rect.width - 1); |
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points[3].y = 0; |
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points[4].x = 0; |
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points[4].y = -(b->rect.height - 1); |
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XDrawLines(dpy, b->drawable, b->gc, points, 5, CoordModePrevious); |
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} |
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void |
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draw(Display *dpy, Brush *b) |
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{ |
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unsigned int x, y, w, h, len; |
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static char buf[256]; |
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XGCValues gcv; |
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XSetForeground(dpy, b->gc, b->color.bg); |
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XFillRectangles(dpy, b->drawable, b->gc, &b->rect, 1); |
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if(b->border) |
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drawborder(dpy, b); |
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if(!b->text) |
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return; |
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len = strlen(b->text); |
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if(len >= sizeof(buf)) |
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len = sizeof(buf) - 1; |
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memcpy(buf, b->text, len); |
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buf[len] = 0; |
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h = b->font->ascent + b->font->descent; |
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y = b->rect.y + (b->rect.height / 2) - (h / 2) + b->font->ascent; |
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x = b->rect.x + (h / 2); |
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/* shorten text if necessary */ |
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while(len && (w = textwidth_l(b->font, buf, len)) > b->rect.width - h) |
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buf[--len] = 0; |
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if(w > b->rect.width) |
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return; /* too long */ |
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gcv.foreground = b->color.fg; |
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gcv.background = b->color.bg; |
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if(b->font->set) { |
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XChangeGC(dpy, b->gc, GCForeground | GCBackground, &gcv); |
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XmbDrawImageString(dpy, b->drawable, b->font->set, b->gc, |
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x, y, buf, len); |
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} |
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else { |
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gcv.font = b->font->xfont->fid; |
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XChangeGC(dpy, b->gc, GCForeground | GCBackground | GCFont, &gcv); |
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XDrawImageString(dpy, b->drawable, b->gc, x, y, buf, len); |
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} |
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} |
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static unsigned long |
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xloadcolor(Display *dpy, Colormap cmap, const char *colstr) |
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{ |
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XColor color; |
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XAllocNamedColor(dpy, cmap, colstr, &color, &color); |
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return color.pixel; |
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} |
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void |
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loadcolor(Display *dpy, int screen, Color *c, |
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const char *bg, const char *fg, const char *border) |
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{ |
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Colormap cmap = DefaultColormap(dpy, screen); |
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c->bg = xloadcolor(dpy, cmap, bg); |
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c->fg = xloadcolor(dpy, cmap, fg); |
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c->border = xloadcolor(dpy, cmap, border); |
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} |
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unsigned int |
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textwidth_l(Fnt *font, char *text, unsigned int len) |
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{ |
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if(font->set) { |
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XRectangle r; |
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XmbTextExtents(font->set, text, len, 0, &r); |
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return r.width; |
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} |
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return XTextWidth(font->xfont, text, len); |
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} |
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unsigned int |
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textwidth(Fnt *font, char *text) |
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{ |
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return textwidth_l(font, text, strlen(text)); |
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} |
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void |
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loadfont(Display *dpy, Fnt *font, const char *fontstr) |
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{ |
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char **missing, *def; |
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int n; |
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missing = 0; |
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def = "?"; |
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setlocale(LC_ALL, ""); |
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if(font->set) |
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XFreeFontSet(dpy, font->set); |
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font->set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); |
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if(missing) { |
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while(n--) |
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fprintf(stderr, "missing fontset: %s\n", missing[n]); |
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XFreeStringList(missing); |
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if(font->set) { |
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XFreeFontSet(dpy, font->set); |
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font->set = 0; |
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} |
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} |
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if(font->set) { |
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XFontSetExtents *font_extents; |
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XFontStruct **xfonts; |
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char **font_names; |
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unsigned int i; |
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font->ascent = font->descent = 0; |
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font_extents = XExtentsOfFontSet(font->set); |
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n = XFontsOfFontSet(font->set, &xfonts, &font_names); |
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for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) { |
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if(font->ascent < (*xfonts)->ascent) |
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font->ascent = (*xfonts)->ascent; |
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if(font->descent < (*xfonts)->descent) |
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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(font->xfont) |
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XFreeFont(dpy, font->xfont); |
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font->xfont = 0; |
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font->xfont = XLoadQueryFont(dpy, fontstr); |
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if (!font->xfont) |
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font->xfont = XLoadQueryFont(dpy, "fixed"); |
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if (!font->xfont) |
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error("error, cannot load 'fixed' font\n"); |
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font->ascent = font->xfont->ascent; |
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font->descent = font->xfont->descent; |
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} |
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} |
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@ -0,0 +1,6 @@ |
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/*
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* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> |
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* See LICENSE file for license details. |
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*/ |
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extern void error(char *errstr, ...); |
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@ -0,0 +1,81 @@ |
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/*
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* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com> |
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* See LICENSE file for license details. |
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*/ |
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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 <locale.h> |
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unsigned int |
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textwidth_l(BlitzFont *font, char *text, unsigned int len) |
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{ |
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if(font->set) { |
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XRectangle r; |
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XmbTextExtents(font->set, text, len, nil, &r); |
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return r.width; |
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} |
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return XTextWidth(font->xfont, text, len); |
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} |
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unsigned int |
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textwidth(BlitzFont *font, char *text) |
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{ |
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return blitz_textwidth_l(font, text, strlen(text)); |
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} |
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void |
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loadfont(Blitz *blitz, BlitzFont *font) |
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{ |
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char *fontname = font->fontstr; |
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char **missing = nil, *def = "?"; |
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int n; |
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setlocale(LC_ALL, ""); |
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if(font->set) |
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XFreeFontSet(blitz->dpy, font->set); |
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font->set = XCreateFontSet(blitz->dpy, fontname, &missing, &n, &def); |
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if(missing) { |
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while(n--) |
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fprintf(stderr, "liblitz: missing fontset: %s\n", missing[n]); |
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XFreeStringList(missing); |
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if(font->set) { |
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XFreeFontSet(blitz->dpy, font->set); |
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font->set = nil; |
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} |
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} |
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if(font->set) { |
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XFontSetExtents *font_extents; |
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XFontStruct **xfonts; |
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char **font_names; |
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unsigned int i; |
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font->ascent = font->descent = 0; |
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font_extents = XExtentsOfFontSet(font->set); |
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n = XFontsOfFontSet(font->set, &xfonts, &font_names); |
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for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) { |
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if(font->ascent < (*xfonts)->ascent) |
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font->ascent = (*xfonts)->ascent; |
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if(font->descent < (*xfonts)->descent) |
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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(font->xfont) |
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XFreeFont(blitz->dpy, font->xfont); |
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font->xfont = nil; |
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font->xfont = XLoadQueryFont(blitz->dpy, fontname); |
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if (!font->xfont) { |
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fontname = "fixed"; |
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font->xfont = XLoadQueryFont(blitz->dpy, fontname); |
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} |
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if (!font->xfont) { |
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fprintf(stderr, "%s", "liblitz: error, cannot load 'fixed' font\n"); |
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exit(1); |
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} |
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font->ascent = font->xfont->ascent; |
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font->descent = font->xfont->descent; |
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} |
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} |
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@ -0,0 +1,18 @@ |
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/*
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* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> |
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* See LICENSE file for license details. |
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*/ |
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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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void |
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error(char *errstr, ...) { |
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va_list ap; |
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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(1); |
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} |
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@ -0,0 +1,41 @@ |
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/*
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* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> |
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* See LICENSE file for license details. |
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*/ |
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#include <X11/Xlib.h> |
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#include <X11/Xlocale.h> |
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typedef struct Brush Brush; |
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typedef struct Color Color; |
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typedef struct Fnt Fnt; |
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struct Color { |
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unsigned long bg; |
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unsigned long fg; |
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unsigned long border; |
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}; |
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struct Fnt { |
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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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}; |
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struct Brush { |
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GC gc; |
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Drawable drawable; |
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XRectangle rect; |
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Bool border; |
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Fnt *font; |
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Color color; |
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const char *text; |
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}; |
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extern void draw(Display *dpy, Brush *b); |
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extern void loadcolor(Display *dpy, int screen, Color *c, |
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const char *bg, const char *fg, const char *bo); |
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extern unsigned int textwidth_l(Fnt *font, char *text, unsigned int len); |
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extern unsigned int textwidth(Fnt *font, char *text); |
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extern void loadfont(Display *dpy, Fnt *font, const char *fontstr); |
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