-/*
- * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * See LICENSE file for license details.
- */
-
+/* 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"
-static void
-drawborder(Display *dpy, Brush *b)
-{
- XPoint points[5];
- XSetLineAttributes(dpy, b->gc, 1, LineSolid, CapButt, JoinMiter);
- XSetForeground(dpy, b->gc, b->border);
- points[0].x = b->rect.x;
- points[0].y = b->rect.y;
- points[1].x = b->rect.width - 1;
- points[1].y = 0;
- points[2].x = 0;
- points[2].y = b->rect.height - 1;
- points[3].x = -(b->rect.width - 1);
- points[3].y = 0;
- points[4].x = 0;
- points[4].y = -(b->rect.height - 1);
- XDrawLines(dpy, b->drawable, b->gc, points, 5, CoordModePrevious);
+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(Display *dpy, Brush *b, Bool border, const char *text)
-{
- unsigned int x, y, w, h, len;
- static char buf[256];
- XGCValues gcv;
-
- XSetForeground(dpy, b->gc, b->bg);
- XFillRectangles(dpy, b->drawable, b->gc, &b->rect, 1);
-
- if(border)
- drawborder(dpy, b);
-
- if(!text)
+draw_resize(Draw *draw, unsigned int w, unsigned int h) {
+ if(!draw)
return;
-
- len = strlen(text);
- if(len >= sizeof(buf))
- len = sizeof(buf) - 1;
- memcpy(buf, text, len);
- buf[len] = 0;
-
- h = b->font.ascent + b->font.descent;
- y = b->rect.y + (b->rect.height / 2) - (h / 2) + b->font.ascent;
- x = b->rect.x + (h / 2);
-
- /* shorten text if necessary */
- while(len && (w = textwidth_l(&b->font, buf, len)) > b->rect.width - h)
- buf[--len] = 0;
-
- if(w > b->rect.width)
- return; /* too long */
-
- gcv.foreground = b->fg;
- gcv.background = b->bg;
- if(b->font.set) {
- XChangeGC(dpy, b->gc, GCForeground | GCBackground, &gcv);
- XmbDrawImageString(dpy, b->drawable, b->font.set, b->gc,
- x, y, buf, len);
- }
- else {
- gcv.font = b->font.xfont->fid;
- XChangeGC(dpy, b->gc, GCForeground | GCBackground | GCFont, &gcv);
- XDrawImageString(dpy, b->drawable, b->gc, x, y, buf, len);
- }
-}
-
-static unsigned long
-xloadcolors(Display *dpy, Colormap cmap, const char *colstr)
-{
- XColor color;
- XAllocNamedColor(dpy, cmap, colstr, &color, &color);
- return color.pixel;
+ 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
-loadcolors(Display *dpy, int screen, Brush *b,
- const char *bg, const char *fg, const char *border)
-{
- Colormap cmap = DefaultColormap(dpy, screen);
- b->bg = xloadcolors(dpy, cmap, bg);
- b->fg = xloadcolors(dpy, cmap, fg);
- b->border = xloadcolors(dpy, cmap, border);
-}
-
-unsigned int
-textwidth_l(Fnt *font, char *text, unsigned int len)
-{
- if(font->set) {
- XRectangle r;
- XmbTextExtents(font->set, text, len, 0, &r);
- return r.width;
- }
- return XTextWidth(font->xfont, text, len);
+draw_free(Draw *draw) {
+ XFreePixmap(draw->dpy, draw->drawable);
+ XFreeGC(draw->dpy, draw->gc);
+ free(draw);
}
-unsigned int
-textwidth(Fnt *font, char *text)
-{
- return textwidth_l(font, text, strlen(text));
-}
-
-void
-loadfont(Display *dpy, Fnt *font, const char *fontstr)
-{
- char **missing, *def;
+Fnt *
+draw_font_create(Draw *draw, const char *fontname) {
+ Fnt *font;
+ char *def, **missing;
int n;
- missing = NULL;
- def = "?";
- setlocale(LC_ALL, "");
- if(font->set)
- XFreeFontSet(dpy, font->set);
- font->set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
+ 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, "missing fontset: %s\n", missing[n]);
+ fprintf(stderr, "draw: missing fontset: %s\n", missing[n]);
XFreeStringList(missing);
- if(font->set) {
- XFreeFontSet(dpy, font->set);
- font->set = NULL;
- }
}
if(font->set) {
- XFontSetExtents *font_extents;
XFontStruct **xfonts;
char **font_names;
- unsigned int i;
-
- font->ascent = font->descent = 0;
- font_extents = XExtentsOfFontSet(font->set);
+ XExtentsOfFontSet(font->set);
n = XFontsOfFontSet(font->set, &xfonts, &font_names);
- for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) {
- if(font->ascent < (*xfonts)->ascent)
- font->ascent = (*xfonts)->ascent;
- if(font->descent < (*xfonts)->descent)
- font->descent = (*xfonts)->descent;
+ while(n--) {
+ font->ascent = MAX(font->ascent, (*xfonts)->ascent);
+ font->descent = MAX(font->descent,(*xfonts)->descent);
xfonts++;
}
}
else {
- if(font->xfont)
- XFreeFont(dpy, font->xfont);
- font->xfont = NULL;
- font->xfont = XLoadQueryFont(dpy, fontstr);
- if (!font->xfont)
- font->xfont = XLoadQueryFont(dpy, "fixed");
- if (!font->xfont)
- error("error, cannot load 'fixed' font\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->height = font->ascent + font->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);
}
-unsigned int
-labelheight(Fnt *font)
-{
- return font->height + 4;
+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;
+ }
}
Got questions, comments, patches, etc.? Contact Jason Woofenden