/* See LICENSE file for copyright and license details. */
-#include <locale.h>
-#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
-#include "draw.h"
-
-#define MAX(a, b) ((a) > (b) ? (a) : (b))
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
-#define DEFAULTFN "fixed"
-
-static Bool loadfont(DC *dc, const char *fontstr);
-void
-drawrect(DC *dc, int x, int y, unsigned int w, unsigned int h, Bool fill, unsigned long color) {
- XSetForeground(dc->dpy, dc->gc, color);
- if(fill)
- XFillRectangle(dc->dpy, dc->canvas, dc->gc, dc->x + x, dc->y + y, w, h);
- else
- XDrawRectangle(dc->dpy, dc->canvas, dc->gc, dc->x + x, dc->y + y, w-1, h-1);
+#include "draw.h"
+#include "util.h"
+
+Draw *
+draw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h) {
+ Draw *draw = (Draw *)calloc(1, sizeof(Draw));
+ draw->dpy = dpy;
+ draw->screen = screen;
+ draw->win = win;
+ draw->w = w;
+ draw->h = h;
+ draw->drawable = XCreatePixmap(dpy, win, w, h, DefaultDepth(dpy, screen));
+ draw->gc = XCreateGC(dpy, win, 0, NULL);
+ XSetLineAttributes(dpy, draw->gc, 1, LineSolid, CapButt, JoinMiter);
+ return draw;
}
void
-drawtext(DC *dc, const char *text, unsigned long col[ColLast]) {
- char buf[BUFSIZ];
- size_t mn, n = strlen(text);
-
- /* shorten text if necessary */
- for(mn = MIN(n, sizeof buf); textnw(dc, text, mn) + dc->font.height/2 > dc->w; mn--)
- if(mn == 0)
- return;
- memcpy(buf, text, mn);
- if(mn < n)
- for(n = MAX(mn-3, 0); n < mn; buf[n++] = '.');
-
- drawrect(dc, 0, 0, dc->w, dc->h, True, BG(dc, col));
- drawtextn(dc, buf, mn, col);
+draw_resize(Draw *draw, unsigned int w, unsigned int h) {
+ if(!draw)
+ return;
+ draw->w = w;
+ draw->h = h;
+ XFreePixmap(draw->dpy, draw->drawable);
+ draw->drawable = XCreatePixmap(draw->dpy, draw->win, w, h, DefaultDepth(draw->dpy, draw->screen));
}
void
-drawtextn(DC *dc, const char *text, size_t n, unsigned long col[ColLast]) {
- int x = dc->x + dc->font.height/2;
- int y = dc->y + dc->font.ascent+1;
+draw_free(Draw *draw) {
+ XFreePixmap(draw->dpy, draw->drawable);
+ XFreeGC(draw->dpy, draw->gc);
+ free(draw);
+}
- XSetForeground(dc->dpy, dc->gc, FG(dc, col));
- if(dc->font.set)
- XmbDrawString(dc->dpy, dc->canvas, dc->font.set, dc->gc, x, y, text, n);
+Fnt *
+draw_font_create(Draw *draw, const char *fontname) {
+ Fnt *font;
+ char *def, **missing;
+ int n;
+
+ if(!draw)
+ return NULL;
+ font = (Fnt *)calloc(1, sizeof(Fnt));
+ font->set = XCreateFontSet(draw->dpy, fontname, &missing, &n, &def);
+ if(missing) {
+ while(n--)
+ fprintf(stderr, "draw: missing fontset: %s\n", missing[n]);
+ XFreeStringList(missing);
+ }
+ if(font->set) {
+ XFontStruct **xfonts;
+ char **font_names;
+ XExtentsOfFontSet(font->set);
+ n = XFontsOfFontSet(font->set, &xfonts, &font_names);
+ while(n--) {
+ font->ascent = MAX(font->ascent, (*xfonts)->ascent);
+ font->descent = MAX(font->descent,(*xfonts)->descent);
+ xfonts++;
+ }
+ }
else {
- XSetFont(dc->dpy, dc->gc, dc->font.xfont->fid);
- XDrawString(dc->dpy, dc->canvas, dc->gc, x, y, text, n);
+ if(!(font->xfont = XLoadQueryFont(draw->dpy, fontname))
+ && !(font->xfont = XLoadQueryFont(draw->dpy, "fixed")))
+ die("error, cannot load font: '%s'\n", fontname);
+ font->ascent = font->xfont->ascent;
+ font->descent = font->xfont->descent;
}
+ font->h = font->ascent + font->descent;
+ return font;
}
void
-eprintf(const char *fmt, ...) {
- va_list ap;
+draw_font_free(Draw *draw, Fnt *font) {
+ if(!draw || !font)
+ return;
+ if(font->set)
+ XFreeFontSet(draw->dpy, font->set);
+ else
+ XFreeFont(draw->dpy, font->xfont);
+ free(font);
+}
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
+Col *
+draw_col_create(Draw *draw, const char *colname) {
+ Col *col = (Col *)calloc(1, sizeof(Col));
+ Colormap cmap = DefaultColormap(draw->dpy, draw->screen);
+ XColor color;
- if(fmt[0] != '\0' && fmt[strlen(fmt)-1] == ':') {
- fputc(' ', stderr);
- perror(NULL);
- }
- exit(EXIT_FAILURE);
+ if(!XAllocNamedColor(draw->dpy, cmap, colname, &color, &color))
+ die("error, cannot allocate color '%s'\n", colname);
+ col->rgb = color.pixel;
+ return col;
}
void
-freedc(DC *dc) {
- if(dc->font.set)
- XFreeFontSet(dc->dpy, dc->font.set);
- if(dc->font.xfont)
- XFreeFont(dc->dpy, dc->font.xfont);
- if(dc->canvas)
- XFreePixmap(dc->dpy, dc->canvas);
- XFreeGC(dc->dpy, dc->gc);
- XCloseDisplay(dc->dpy);
- free(dc);
+draw_col_free(Draw *draw, Col *col) {
+ if(!col)
+ return;
+ free(col);
}
-unsigned long
-getcolor(DC *dc, const char *colstr) {
- Colormap cmap = DefaultColormap(dc->dpy, DefaultScreen(dc->dpy));
- XColor color;
-
- if(!XAllocNamedColor(dc->dpy, cmap, colstr, &color, &color))
- eprintf("cannot allocate color '%s'\n", colstr);
- return color.pixel;
+void
+draw_setfont(Draw *draw, Fnt *font) {
+ if(!draw)
+ return;
+ draw->font = font;
}
-DC *
-initdc(void) {
- DC *dc;
-
- if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
- fprintf(stderr, "no locale support\n");
- if(!(dc = calloc(1, sizeof *dc)))
- eprintf("cannot malloc %u bytes:", sizeof *dc);
- if(!(dc->dpy = XOpenDisplay(NULL)))
- eprintf("cannot open display\n");
-
- dc->gc = XCreateGC(dc->dpy, DefaultRootWindow(dc->dpy), 0, NULL);
- XSetLineAttributes(dc->dpy, dc->gc, 1, LineSolid, CapButt, JoinMiter);
- return dc;
+void
+draw_setfg(Draw *draw, Col *col) {
+ if(!draw)
+ return;
+ draw->fg = col;
}
void
-initfont(DC *dc, const char *fontstr) {
- if(!loadfont(dc, fontstr ? fontstr : DEFAULTFN)) {
- if(fontstr != NULL)
- fprintf(stderr, "cannot load font '%s'\n", fontstr);
- if(fontstr == NULL || !loadfont(dc, DEFAULTFN))
- eprintf("cannot load font '%s'\n", DEFAULTFN);
- }
- dc->font.height = dc->font.ascent + dc->font.descent;
+draw_setbg(Draw *draw, Col *col) {
+ if(!draw)
+ return;
+ draw->bg = col;
}
-Bool
-loadfont(DC *dc, const char *fontstr) {
- char *def, **missing, **names;
- int i, n = 1;
- XFontStruct **xfonts;
-
- if(!*fontstr)
- return False;
- if((dc->font.set = XCreateFontSet(dc->dpy, fontstr, &missing, &n, &def))) {
- n = XFontsOfFontSet(dc->font.set, &xfonts, &names);
- }
- else {
- dc->font.xfont = XLoadQueryFont(dc->dpy, fontstr);
- xfonts = &dc->font.xfont;
- }
- for(i = 0; i < n; i++) {
- dc->font.ascent = MAX(dc->font.ascent, xfonts[i]->ascent);
- dc->font.descent = MAX(dc->font.descent, xfonts[i]->descent);
- dc->font.width = MAX(dc->font.width, xfonts[i]->max_bounds.width);
- }
- if(missing)
- XFreeStringList(missing);
- return (dc->font.set || dc->font.xfont);
+void
+draw_rect(Draw *draw, int x, int y, unsigned int w, unsigned int h, Bool filled, Bool empty, Bool invert) {
+ int dx;
+
+ if(!draw || !draw->font || !draw->fg || !draw->bg)
+ return;
+ XSetForeground(draw->dpy, draw->gc, invert ? draw->bg->rgb : draw->fg->rgb);
+ dx = (draw->font->ascent + draw->font->descent + 2) / 4;
+ if(filled)
+ XFillRectangle(draw->dpy, draw->drawable, draw->gc, x+1, y+1, dx+1, dx+1);
+ else if(empty)
+ XDrawRectangle(draw->dpy, draw->drawable, draw->gc, x+1, y+1, dx, dx);
}
void
-mapdc(DC *dc, Window win, unsigned int w, unsigned int h) {
- XCopyArea(dc->dpy, dc->canvas, win, dc->gc, 0, 0, w, h, 0, 0);
+draw_text(Draw *draw, int x, int y, unsigned int w, unsigned int h, const char *text, Bool invert) {
+ char buf[256];
+ int i, tx, ty, len, olen;
+ TextExtents tex;
+
+ if(!draw || !draw->fg || !draw->bg)
+ return;
+ XSetForeground(draw->dpy, draw->gc, invert ? draw->fg->rgb : draw->bg->rgb);
+ XFillRectangle(draw->dpy, draw->drawable, draw->gc, x, y, w, h);
+ if(!text || !draw->font)
+ return;
+ olen = strlen(text);
+ draw_getextents(draw, text, olen, &tex);
+ ty = y + (h / 2) - tex.yOff;
+ tx = x + tex.xOff;
+ /* shorten text if necessary */
+ for(len = MIN(olen, sizeof buf); len && tex.w > w - tex.h; len--)
+ draw_getextents(draw, text, len, &tex);
+ if(!len)
+ return;
+ memcpy(buf, text, len);
+ if(len < olen)
+ for(i = len; i && i > len - 3; buf[--i] = '.');
+ XSetForeground(draw->dpy, draw->gc, invert ? draw->bg->rgb : draw->fg->rgb);
+ if(draw->font->set)
+ XmbDrawString(draw->dpy, draw->drawable, draw->font->set, draw->gc, tx, ty, buf, len);
+ else
+ XDrawString(draw->dpy, draw->drawable, draw->gc, tx, ty, buf, len);
}
void
-resizedc(DC *dc, unsigned int w, unsigned int h) {
- if(dc->canvas)
- XFreePixmap(dc->dpy, dc->canvas);
-
- dc->canvas = XCreatePixmap(dc->dpy, DefaultRootWindow(dc->dpy), w, h,
- DefaultDepth(dc->dpy, DefaultScreen(dc->dpy)));
- dc->w = w;
- dc->h = h;
+draw_map(Draw *draw, int x, int y, unsigned int w, unsigned int h) {
+ if(!draw)
+ return;
+ XCopyArea(draw->dpy, draw->drawable, draw->win, draw->gc, x, y, w, h, x, y);
+ XSync(draw->dpy, False);
}
-int
-textnw(DC *dc, const char *text, size_t len) {
- if(dc->font.set) {
- XRectangle r;
- XmbTextExtents(dc->font.set, text, len, NULL, &r);
- return r.width;
+void
+draw_getextents(Draw *draw, const char *text, unsigned int len, TextExtents *extents) {
+ XRectangle r;
+
+ if(!draw || !draw->font || !text)
+ return;
+ if(draw->font->set) {
+ XmbTextExtents(draw->font->set, text, len, NULL, &r);
+ extents->xOff = r.x;
+ extents->yOff = r.y;
+ extents->w = r.width;
+ extents->h = r.height;
+ }
+ else {
+ extents->h = draw->font->ascent + draw->font->descent;
+ extents->w = XTextWidth(draw->font->xfont, text, len);
+ extents->xOff = extents->h / 2;
+ extents->yOff = (extents->h / 2) + draw->font->ascent;
}
- return XTextWidth(dc->font.xfont, text, len);
-}
-
-int
-textw(DC *dc, const char *text) {
- return textnw(dc, text, strlen(text)) + dc->font.height;
}
Got questions, comments, patches, etc.? Contact Jason Woofenden