I added Gagues to monitor variables

Signed-off-by: Brenden Matthews <brenden@rty.ca>

src/conky.c

@@ -699,6 +699,7 @@ static void free_text_objects(struct text_object *root)
 			case OBJ_font:
 			case OBJ_image:
 			case OBJ_exec:
+			case OBJ_execgauge:
 			case OBJ_execbar:
 			case OBJ_execgraph:
 			case OBJ_execp:
@@ -1283,6 +1284,9 @@ static struct text_object *construct_text_object(const char *s,
 		} else {
 			obj->data.cpu_index = 0;
 		}
+	END OBJ(cpugauge, INFO_CPU)
+		scan_gauge(arg, &obj->a, &obj->b);
+		DBGP2("Adding $cpugauge for CPU %d", obj->data.cpu_index);
 	END OBJ(cpubar, INFO_CPU)
 		if (arg) {
 			if (strncmp(arg, "cpu", 3) == EQUAL && isdigit(arg[3])) {
@@ -1410,6 +1414,8 @@ static struct text_object *construct_text_object(const char *s,
 		obj->data.s = strndup(arg ? arg : "", text_buffer_size);
 	END OBJ(execp, 0)
 		obj->data.s = strndup(arg ? arg : "", text_buffer_size);
+	END OBJ(execgauge, 0)
+		obj->data.s = strndup(arg ? arg : "", text_buffer_size);
 	END OBJ(execbar, 0)
 		obj->data.s = strndup(arg ? arg : "", text_buffer_size);
 	END OBJ(execgraph, 0)
@@ -2046,6 +2052,8 @@ static struct text_object *construct_text_object(const char *s,
 	END OBJ(memfree, INFO_MEM)
 	END OBJ(memmax, INFO_MEM)
 	END OBJ(memperc, INFO_MEM)
+	END OBJ(memgauge, INFO_MEM)
+		scan_gauge(arg, &obj->data.pair.a, &obj->data.pair.b);
 	END OBJ(membar, INFO_MEM)
 		scan_bar(arg, &obj->data.pair.a, &obj->data.pair.b);
 	END OBJ(memgraph, INFO_MEM)
@@ -2795,10 +2803,9 @@ static int extract_variable_text_internal(struct text_object *retval, const char
 				s = p;
 
 				var = getenv(buf);
-				if (var) {
-					strncpy(buf, var, 255);
-				}
 
+				/* if variable wasn't found in environment, use some special */
+				if (!var) {
 					arg = 0;
 
 					/* split arg */
@@ -2827,7 +2834,7 @@ static int extract_variable_text_internal(struct text_object *retval, const char
 					if (obj != NULL) {
 						append_object(retval, obj);
 					}
-
+				}
 				continue;
 			} else {
 				obj = create_plain_text("$");
@@ -3193,6 +3200,9 @@ static void generate_text_internal(char *p, int p_max_size,
 				percent_print(p, p_max_size,
 				              round_to_int(cur->cpu_usage[obj->data.cpu_index] * 100.0));
 			}
+			OBJ(cpugauge)
+				new_gauge(p, obj->a, obj->b,
+						round_to_int(cur->cpu_usage[obj->data.cpu_index] * 255.0));
 			OBJ(cpubar) {
 				new_bar(p, obj->a, obj->b,
 						round_to_int(cur->cpu_usage[obj->data.cpu_index] * 255.0));
@@ -3517,6 +3527,17 @@ static void generate_text_internal(char *p, int p_max_size,
 				free_text_objects(&subroot);
 				free(tmp_info);
 			}
+			OBJ(execgauge) {
+				double barnum;
+
+				read_exec(obj->data.s, p, text_buffer_size);
+				barnum = get_barnum(p); /*using the same function*/
+
+				if (barnum >= 0.0) {
+					barnum /= 100;
+					new_bar(p, 0, 6, round_to_int(barnum * 255.0));
+				}
+			}
 			OBJ(execbar) {
 				double barnum;
 
@@ -4006,6 +4027,10 @@ static void generate_text_internal(char *p, int p_max_size,
 				if (cur->memmax)
 					percent_print(p, p_max_size, cur->mem * 100 / cur->memmax);
 			}
+			OBJ(memgauge){
+				new_gauge(p, obj->data.pair.a, obj->data.pair.b,
+					cur->memmax ? (cur->mem * 255) / (cur->memmax) : 0);
+			}
 			OBJ(membar) {
 				new_bar(p, obj->data.pair.a, obj->data.pair.b,
 					cur->memmax ? (cur->mem * 255) / (cur->memmax) : 0);
@@ -5298,6 +5323,59 @@ static void draw_line(char *s)
 					break;
 				}
 
+				case GAUGE: /* new GAUGE  */
+				{
+					int h, by  = 0;
+					unsigned long last_colour = current_color;
+					float angle, px,py;
+					int usage;
+
+					if (cur_x - text_start_x > maximum_width
+							&& maximum_width > 0) {
+						break;
+					}
+
+					h = specials[special_index].height;
+					by = cur_y - (font_ascent() / 2) - 1;
+
+					if (h < font_height()) {
+						by -= h / 2 - 1;
+					}
+					w = specials[special_index].width;
+					if (w == 0) {
+						w = text_start_x + text_width - cur_x - 1;
+					}
+					if (w < 0) {
+						w = 0;
+					}
+
+					XSetLineAttributes(display, window.gc, 1, LineSolid,
+						CapButt, JoinMiter);
+
+					XDrawArc(display, window.drawable, window.gc,
+							cur_x, by, w, h*2, 0, 180*64);
+
+#ifdef MATH
+					usage =specials[special_index].arg;
+					angle = (3.14)*(float)(usage)/255.;
+					px = (float)(cur_x+w/2.)-(float)(w)/2.*0.9*cos(angle);
+					py = (float)(by+h)-(float)(h)*0.9*sin(angle);
+
+					XDrawLine(display, window.drawable, window.gc,
+							cur_x+ w/2, by+h, (int)(px), (int)(py));
+#endif
+
+					if (specials[special_index].height > cur_y_add
+							&& specials[special_index].height > font_h) {
+						cur_y_add = specials[special_index].height;
+					}
+
+					set_foreground_color(last_colour);
+
+					break;
+
+				}
+
 				case GRAPH:
 				{
 					int h, by, i, j = 0;

src/specials.c

@@ -43,6 +43,27 @@ unsigned int special_count;
 /*
  * Scanning arguments to various special text objects
  */
+
+const char *scan_gauge(const char *args, int *w, int *h)
+{
+	/*width and height*/
+	*w = 25;
+	*h = 25;
+
+	/* gauge's argument is either height or height,width */
+	if (args) {
+		int n = 0;
+
+		if (sscanf(args, "%d,%d %n", h, w, &n) <= 1) {
+			sscanf(args, "%d %n", h, &n);
+			*w = *h; /*square gauge*/
+		}
+		args += n;
+	}
+
+	return args;
+}
+
 const char *scan_bar(const char *args, int *w, int *h)
 {
 	/* zero width means all space that is available */
@@ -177,6 +198,15 @@ static struct special_t *new_special(char *buf, enum special_types t)
 	return &specials[special_count++];
 }
 
+void new_gauge(char *buf, int w, int h, int usage)
+{
+	struct special_t *s = new_special(buf, GAUGE);
+
+	s->arg = (usage > 255) ? 255 : ((usage < 0) ? 0 : usage);
+	s->width = w;
+	s->height = h;
+}
+
 void new_bar(char *buf, int w, int h, int usage)
 {
 	struct special_t *s = new_special(buf, BAR);

src/specials.h

@@ -48,6 +48,7 @@ enum special_types {
 	OUTLINE,
 	ALIGNR,
 	ALIGNC,
+	GAUGE,
 	GRAPH,
 	OFFSET,
 	VOFFSET,
@@ -79,12 +80,14 @@ extern unsigned int special_count;
 extern unsigned int max_specials;
 
 /* scanning special arguments */
+const char *scan_gauge(const char *, int *, int *);
 const char *scan_bar(const char *, int *, int *);
 char *scan_font(const char *);
 char *scan_graph(const char *, int *, int *, unsigned int *,
                  unsigned int *, unsigned int *, char *);
 
 /* printing specials */
+void new_gauge(char *, int, int, int);
 void new_bar(char *, int, int, int);
 void new_font(char *, char *);
 void new_graph(char *, int, int, unsigned int,

src/text_object.h

@@ -76,6 +76,7 @@ enum text_object_type {
 	OBJ_conky_build_arch,
 	OBJ_font,
 	OBJ_cpu,
+	OBJ_cpugauge,
 	OBJ_cpubar,
 	OBJ_cpugraph,
 	OBJ_loadgraph,
@@ -94,6 +95,7 @@ enum text_object_type {
 	OBJ_exec,
 	OBJ_execi,
 	OBJ_texeci,
+	OBJ_execgauge,
 	OBJ_execbar,
 	OBJ_execgraph,
 	OBJ_execibar,
@@ -194,6 +196,7 @@ enum text_object_type {
 	OBJ_mem,
 	OBJ_memeasyfree,
 	OBJ_memfree,
+	OBJ_memgauge,
 	OBJ_membar,
 	OBJ_memgraph,
 	OBJ_memmax,