diff options
Diffstat (limited to 'draw.c')
| -rw-r--r-- | draw.c | 202 |
1 files changed, 0 insertions, 202 deletions
@@ -1,202 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <X11/Xlib.h> - -#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 -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 -draw_free(Draw *draw) { - XFreePixmap(draw->dpy, draw->drawable); - XFreeGC(draw->dpy, draw->gc); - free(draw); -} - -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 { - 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 -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); -} - -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(!XAllocNamedColor(draw->dpy, cmap, colname, &color, &color)) - die("error, cannot allocate color '%s'\n", colname); - col->rgb = color.pixel; - return col; -} - -void -draw_col_free(Draw *draw, Col *col) { - if(!col) - return; - free(col); -} - -void -draw_setfont(Draw *draw, Fnt *font) { - if(!draw) - return; - draw->font = font; -} - -void -draw_setfg(Draw *draw, Col *col) { - if(!draw) - return; - draw->fg = col; -} - -void -draw_setbg(Draw *draw, Col *col) { - if(!draw) - return; - draw->bg = col; -} - -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 -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 -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); -} - - -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; - } -} |