X-Git-Url: https://jasonwoof.com/gitweb/?p=dwm.git;a=blobdiff_plain;f=draw.c;h=4f8594c8701ada00b660f36a40bf157518ea02f8;hp=53af1cda0265eb04eaba4c3b4841fd308a39bc82;hb=aafeaf731701e528f4ae9d7c7432b3e92fee4392;hpb=8b59083eb13c0712e04d9a5b6d7bf4af5913c442

diff --git a/draw.c b/draw.c
index 53af1cd..fa340ff 100644
--- a/draw.c
+++ b/draw.c
@@ -1,173 +1,202 @@
-/*
- * (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/Xlocale.h>
-
-#include "wm.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->x;
-	points[0].y = b->y;
-	points[1].x = b->w - 1;
-	points[1].y = 0;
-	points[2].x = 0;
-	points[2].y = b->h - 1;
-	points[3].x = -(b->w - 1);
-	points[3].y = 0;
-	points[4].x = 0;
-	points[4].y = -(b->h - 1);
-	XDrawLines(dpy, b->drawable, b->gc, points, 5, CoordModePrevious);
+#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(Display *dpy, Brush *b, Bool border, const char *text)
-{
-	unsigned int x, y, w, h, len;
-	static char buf[256];
-	XGCValues gcv;
-	XRectangle r = { b->x, b->y, b->w, b->h };
-
-	XSetForeground(dpy, b->gc, b->bg);
-	XFillRectangles(dpy, b->drawable, b->gc, &r, 1);
-
-	w = 0;
-	if(border)
-		drawborder(dpy, b);
-
-	if(!text)
+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));
+}
 
-	len = strlen(text);
-	if(len >= sizeof(buf))
-		len = sizeof(buf) - 1;
-	memcpy(buf, text, len);
-	buf[len] = 0;
+void
+draw_free(Draw *draw) {
+	XFreePixmap(draw->dpy, draw->drawable);
+	XFreeGC(draw->dpy, draw->gc);
+	free(draw);
+}
 
-	h = b->font.ascent + b->font.descent;
-	y = b->y + (b->h / 2) - (h / 2) + b->font.ascent;
-	x = b->x + (h / 2);
+Fnt *
+draw_font_create(Draw *draw, const char *fontname) {
+	Fnt *font;
+	char *def, **missing;
+	int n;
 
-	/* shorten text if necessary */
-	while(len && (w = textnw(&b->font, buf, len)) > b->w - h)
-		buf[--len] = 0;
-
-	if(w > b->w)
-		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);
+	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 {
-		gcv.font = b->font.xfont->fid;
-		XChangeGC(dpy, b->gc, GCForeground | GCBackground | GCFont, &gcv);
-		XDrawImageString(dpy, b->drawable, b->gc, x, y, buf, len);
+		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);
 }
 
-static unsigned long
-xloadcolors(Display *dpy, Colormap cmap, const char *colstr)
-{
+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;
-	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
-	return color.pixel;
+
+	if(!XAllocNamedColor(draw->dpy, cmap, colname, &color, &color))
+		die("error, cannot allocate color '%s'\n", colname);
+	col->rgb = color.pixel;
+	return col;
 }
 
 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);
+draw_col_free(Draw *draw, Col *col) {
+	if(!col)
+		return;
+	free(col);
 }
 
-unsigned int
-textnw(Fnt *font, char *text, unsigned int len)
-{
-	XRectangle r;
-	if(font->set) {
-		XmbTextExtents(font->set, text, len, NULL, &r);
-		return r.width;
-	}
-	return XTextWidth(font->xfont, text, len);
+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;
 }
 
-unsigned int
-textw(Fnt *font, char *text)
-{
-	return textnw(font, text, strlen(text));
+void
+draw_setbg(Draw *draw, Col *col) {
+	if(!draw)
+		return;
+	draw->bg = col;
 }
 
-unsigned int
-texth(Fnt *font)
-{
-	return font->height + 4;
+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
-loadfont(Display *dpy, Fnt *font, const char *fontstr)
-{
-	char **missing, *def;
-	int n;
+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;
 
-	missing = NULL;
-	def = "?";
-	setlocale(LC_ALL, "");
-	if(font->set)
-		XFreeFontSet(dpy, font->set);
-	font->set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
-	if(missing) {
-		while(n--)
-			fprintf(stderr, "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;
+	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);
+}
 
-		font->ascent = font->descent = 0;
-		font_extents = 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;
-			xfonts++;
-		}
+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 {
-		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");
-		font->ascent = font->xfont->ascent;
-		font->descent = font->xfont->descent;
+		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;
 	}
-	font->height = font->ascent + font->descent;
 }