156 lines
3.3 KiB
C
156 lines
3.3 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <X11/Xlib.h>
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#include "draw.h"
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#include "util.h"
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Draw *
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draw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h) {
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Draw *draw = (Draw *)calloc(1, sizeof(Draw));
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draw->dpy = dpy;
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draw->screen = screen;
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draw->win = win;
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draw->w = w;
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draw->h = h;
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draw->drawable = XCreatePixmap(dpy, win, w, h, DefaultDepth(dpy, screen));
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draw->gc = XCreateGC(dpy, win, 0, NULL);
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XSetLineAttributes(dpy, draw->gc, 1, LineSolid, CapButt, JoinMiter);
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return draw;
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}
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void
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draw_resize(Draw *draw, unsigned int w, unsigned int h) {
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if(!draw)
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return;
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draw->w = w;
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draw->h = h;
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XFreePixmap(draw->dpy, draw->drawable);
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draw->drawable = XCreatePixmap(draw->dpy, draw->win, w, h, DefaultDepth(draw->dpy, draw->screen));
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}
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void
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draw_free(Draw *draw) {
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XFreePixmap(draw->dpy, draw->drawable);
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XFreeGC(draw->dpy, draw->gc);
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free(draw);
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}
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Fnt *
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draw_font_create(Draw *draw, const char *fontname) {
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Fnt *font;
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char *def, **missing;
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int n;
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if(!draw)
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return NULL;
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font = (Fnt *)calloc(1, sizeof(Fnt));
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font->set = XCreateFontSet(draw->dpy, fontname, &missing, &n, &def);
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if(missing) {
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while(n--)
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fprintf(stderr, "draw: missing fontset: %s\n", missing[n]);
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XFreeStringList(missing);
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}
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if(font->set) {
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XFontStruct **xfonts;
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char **font_names;
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XExtentsOfFontSet(font->set);
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n = XFontsOfFontSet(font->set, &xfonts, &font_names);
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while(n--) {
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font->ascent = MAX(font->ascent, (*xfonts)->ascent);
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font->descent = MAX(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 = XLoadQueryFont(draw->dpy, fontname))
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&& !(font->xfont = XLoadQueryFont(draw->dpy, "fixed")))
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die("error, cannot load font: '%s'\n", fontname);
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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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font->h = font->ascent + font->descent;
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return font;
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}
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void
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draw_font_free(Draw *draw, Fnt *font) {
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if(!draw || !font)
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return;
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if(font->set)
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XFreeFontSet(draw->dpy, font->set);
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else
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XFreeFont(draw->dpy, font->xfont);
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free(font);
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}
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Col *
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draw_col_create(Draw *draw, const char *colname) {
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Col *col = (Col *)calloc(1, sizeof(Col));
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Colormap cmap = DefaultColormap(draw->dpy, draw->screen);
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XColor color;
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if(!XAllocNamedColor(draw->dpy, cmap, colname, &color, &color))
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die("error, cannot allocate color '%s'\n", colname);
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col->rgb = color.pixel;
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return col;
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}
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void
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draw_col_free(Draw *draw, Col *col) {
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if(!col)
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return;
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free(col);
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}
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void
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draw_setfont(Draw *draw, Fnt *font) {
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if(!draw || !font)
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return;
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draw->font = font;
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}
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void
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draw_setfg(Draw *draw, Col *col) {
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if(!draw || !col)
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return;
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draw->fg = col;
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}
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void
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draw_setbg(Draw *draw, Col *col) {
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if(!draw || !col)
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return;
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draw->bg = col;
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}
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void
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draw_rect(Draw *draw, int x, int y, unsigned int w, unsigned int h) {
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if(!draw)
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return;
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/* TODO: draw the rectangle */
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}
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void
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draw_text(Draw *draw, int x, int y, const char *text) {
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if(!draw)
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return;
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/* TODO: draw the text */
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}
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void
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draw_map(Draw *draw, int x, int y, unsigned int w, unsigned int h) {
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if(!draw)
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return;
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/* TODO: map the draw contents in the region */
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}
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void
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draw_getextents(Draw *draw, const char *text, TextExtents *extents) {
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if(!draw || !extents)
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return;
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/* TODO: get extents */
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}
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