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@@ -0,0 +1,163 @@
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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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+
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+#include <stdio.h>
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+#include <string.h>
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+
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+#include "draw.h"
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+#include "util.h"
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+
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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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+
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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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+
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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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+
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+ if(b->border)
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+ drawborder(dpy, b);
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+
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+ if(!b->text)
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+ return;
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+
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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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+
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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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+
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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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+
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+ if(w > b->rect.width)
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+ return; /* too long */
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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