+ /* update terminal size */
+ term.col = col;
+ term.row = row;
+ /* reset scrolling region */
+ tsetscroll(0, row-1);
+ /* make use of the LIMIT in tmoveto */
+ tmoveto(term.c.x, term.c.y);
+ /* Clearing both screens (it makes dirty all lines) */
+ c = term.c;
+ for (i = 0; i < 2; i++) {
+ if (mincol < col && 0 < minrow) {
+ tclearregion(mincol, 0, col - 1, minrow - 1);
+ }
+ if (0 < col && minrow < row) {
+ tclearregion(0, minrow, col - 1, row - 1);
+ }
+ tswapscreen();
+ tcursor(CURSOR_LOAD);
+ }
+ term.c = c;
+}
+
+void
+xresize(int col, int row)
+{
+ xw.tw = MAX(1, col * xw.cw);
+ xw.th = MAX(1, row * xw.ch);
+
+ XFreePixmap(xw.dpy, xw.buf);
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
+ DefaultDepth(xw.dpy, xw.scr));
+ XftDrawChange(xw.draw, xw.buf);
+ xclear(0, 0, xw.w, xw.h);
+}
+
+ushort
+sixd_to_16bit(int x)
+{
+ return x == 0 ? 0 : 0x3737 + 0x2828 * x;
+}
+
+int
+xloadcolor(int i, const char *name, Color *ncolor)
+{
+ XRenderColor color = { .alpha = 0xffff };
+
+ if (!name) {
+ if (BETWEEN(i, 16, 255)) { /* 256 color */
+ if (i < 6*6*6+16) { /* same colors as xterm */
+ color.red = sixd_to_16bit( ((i-16)/36)%6 );
+ color.green = sixd_to_16bit( ((i-16)/6) %6 );
+ color.blue = sixd_to_16bit( ((i-16)/1) %6 );
+ } else { /* greyscale */
+ color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16));
+ color.green = color.blue = color.red;
+ }
+ return XftColorAllocValue(xw.dpy, xw.vis,
+ xw.cmap, &color, ncolor);
+ } else
+ name = colorname[i];
+ }
+
+ return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
+}
+
+void
+xloadcols(void)
+{
+ int i;
+ static int loaded;
+ Color *cp;
+
+ if (loaded) {
+ for (cp = dc.col; cp < &dc.col[LEN(dc.col)]; ++cp)
+ XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
+ }
+
+ for (i = 0; i < LEN(dc.col); i++)
+ if (!xloadcolor(i, NULL, &dc.col[i])) {
+ if (colorname[i])
+ die("Could not allocate color '%s'\n", colorname[i]);
+ else
+ die("Could not allocate color %d\n", i);
+ }
+ loaded = 1;
+}
+
+int
+xsetcolorname(int x, const char *name)
+{
+ Color ncolor;
+
+ if (!BETWEEN(x, 0, LEN(dc.col)))
+ return 1;
+
+
+ if (!xloadcolor(x, name, &ncolor))
+ return 1;
+
+ XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
+ dc.col[x] = ncolor;
+
+ return 0;
+}
+
+void
+xtermclear(int col1, int row1, int col2, int row2)
+{
+ XftDrawRect(xw.draw,
+ &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
+ borderpx + col1 * xw.cw,
+ borderpx + row1 * xw.ch,
+ (col2-col1+1) * xw.cw,
+ (row2-row1+1) * xw.ch);
+}
+
+/*
+ * Absolute coordinates.
+ */
+void
+xclear(int x1, int y1, int x2, int y2)
+{
+ XftDrawRect(xw.draw,
+ &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
+ x1, y1, x2-x1, y2-y1);
+}
+
+void
+xhints(void)
+{
+ XClassHint class = {opt_class ? opt_class : termname, termname};
+ XWMHints wm = {.flags = InputHint, .input = 1};
+ XSizeHints *sizeh = NULL;
+
+ sizeh = XAllocSizeHints();
+
+ sizeh->flags = PSize | PResizeInc | PBaseSize;
+ sizeh->height = xw.h;
+ sizeh->width = xw.w;
+ sizeh->height_inc = xw.ch;
+ sizeh->width_inc = xw.cw;
+ sizeh->base_height = 2 * borderpx;
+ sizeh->base_width = 2 * borderpx;
+ if (xw.isfixed) {
+ sizeh->flags |= PMaxSize | PMinSize;
+ sizeh->min_width = sizeh->max_width = xw.w;
+ sizeh->min_height = sizeh->max_height = xw.h;
+ }
+ if (xw.gm & (XValue|YValue)) {
+ sizeh->flags |= USPosition | PWinGravity;
+ sizeh->x = xw.l;
+ sizeh->y = xw.t;
+ sizeh->win_gravity = xgeommasktogravity(xw.gm);
+ }
+
+ XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
+ &class);
+ XFree(sizeh);
+}
+
+int
+xgeommasktogravity(int mask)
+{
+ switch (mask & (XNegative|YNegative)) {
+ case 0:
+ return NorthWestGravity;
+ case XNegative:
+ return NorthEastGravity;
+ case YNegative:
+ return SouthWestGravity;
+ }
+
+ return SouthEastGravity;
+}
+
+int
+xloadfont(Font *f, FcPattern *pattern)
+{
+ FcPattern *match;
+ FcResult result;
+
+ match = FcFontMatch(NULL, pattern, &result);
+ if (!match)
+ return 1;
+
+ if (!(f->match = XftFontOpenPattern(xw.dpy, match))) {
+ FcPatternDestroy(match);
+ return 1;
+ }
+
+ f->set = NULL;
+ f->pattern = FcPatternDuplicate(pattern);
+
+ f->ascent = f->match->ascent;
+ f->descent = f->match->descent;
+ f->lbearing = 0;
+ f->rbearing = f->match->max_advance_width;
+
+ f->height = f->ascent + f->descent;
+ f->width = f->lbearing + f->rbearing;
+
+ return 0;
+}
+
+void
+xloadfonts(char *fontstr, double fontsize)
+{
+ FcPattern *pattern;
+ double fontval;
+ float ceilf(float);
+
+ if (fontstr[0] == '-') {
+ pattern = XftXlfdParse(fontstr, False, False);
+ } else {
+ pattern = FcNameParse((FcChar8 *)fontstr);
+ }
+
+ if (!pattern)
+ die("st: can't open font %s\n", fontstr);
+
+ if (fontsize > 1) {
+ FcPatternDel(pattern, FC_PIXEL_SIZE);
+ FcPatternDel(pattern, FC_SIZE);
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
+ usedfontsize = fontsize;
+ } else {
+ if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ usedfontsize = fontval;
+ } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ usedfontsize = -1;
+ } else {
+ /*
+ * Default font size is 12, if none given. This is to
+ * have a known usedfontsize value.
+ */
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
+ usedfontsize = 12;
+ }
+ defaultfontsize = usedfontsize;
+ }
+
+ FcConfigSubstitute(0, pattern, FcMatchPattern);
+ FcDefaultSubstitute(pattern);
+
+ if (xloadfont(&dc.font, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ if (usedfontsize < 0) {
+ FcPatternGetDouble(dc.font.match->pattern,
+ FC_PIXEL_SIZE, 0, &fontval);
+ usedfontsize = fontval;
+ if (fontsize == 0)
+ defaultfontsize = fontval;
+ }