psensor fixed graph bounds

fixed-graph-bounds

use fixed graph bounds

--- a/psensor.desktop
+++ b/psensor.desktop
@@ -7,7 +7,7 @@
 Keywords=temperature;fan;monitoring;indicator;
 Icon=psensor
 TryExec=psensor
-Exec=psensor
+Exec=env GDK_BACKEND=x11 psensor
 Categories=System;Monitor;
 X-GNOME-Autostart-Delay=30
 StartupNotify=true
--- a/src/graph.c
+++ b/src/graph.c
@@ -479,13 +479,13 @@
 {
 	int et, bt, width, height, g_width, g_height;
 	double min_rpm, max_rpm, mint, maxt, min, max;
-	char *strmin, *strmax;
+	char *strmin, *strmax, *str_rpm_max;
 	/* horizontal and vertical offset of the graph */
 	int g_xoff, g_yoff, no_graphs, use_celsius;
 	cairo_surface_t *cst;
 	cairo_t *cr, *cr_pixmap;
 	char *str_btime, *str_etime;
-	cairo_text_extents_t te_btime, te_etime, te_max, te_min;
+	cairo_text_extents_t te_btime, te_etime, te_max, te_min, te_rpm_max;
 	struct psensor **sensor_cur, **enabled_sensors;
 	GtkAllocation galloc;
 	struct graph_info info;
@@ -500,6 +500,10 @@
 
 	min_rpm = get_min_rpm(enabled_sensors);
 	max_rpm = get_max_rpm(enabled_sensors);
+	min_rpm=0;
+	if (max_rpm < 3000) max_rpm=3000;
+	str_rpm_max = psensor_value_to_str(SENSOR_TYPE_RPM,
+					  max_rpm, false);
 
 	if (config_get_temperature_unit() == CELSIUS)
 		use_celsius = 1;
@@ -507,9 +511,11 @@
 		use_celsius = 0;
 
 	mint = get_min_temp(enabled_sensors);
+	if (mint > 20) mint=20;
 	strmin = psensor_value_to_str(SENSOR_TYPE_TEMP, mint, use_celsius);
 
 	maxt = get_max_temp(enabled_sensors);
+	if (maxt < 100) maxt=100;
 	strmax = psensor_value_to_str(SENSOR_TYPE_TEMP, maxt, use_celsius);
 
 	et = get_graph_end_time_s(enabled_sensors);
@@ -538,6 +544,7 @@
 	cairo_text_extents(cr, str_btime, &te_btime);
 	cairo_text_extents(cr, strmax, &te_max);
 	cairo_text_extents(cr, strmin, &te_min);
+	cairo_text_extents(cr, str_rpm_max, &te_rpm_max);
 
 	g_yoff = GRAPH_V_PADDING;
 	info.g_yoff = g_yoff;
@@ -642,6 +649,13 @@
 		      GRAPH_H_PADDING, height - (te_min.height / 2) - g_yoff);
 	cairo_show_text(cr, strmin);
 	free(strmin);
+	
+	/* draw max fan rpm on the right of the graph*/
+	cairo_move_to(cr,
+		      width - te_rpm_max.width - GRAPH_H_PADDING,
+		      te_rpm_max.height + GRAPH_V_PADDING);
+	cairo_show_text(cr, str_rpm_max);
+	free(str_rpm_max);
 
 	cr_pixmap = gdk_cairo_create(gtk_widget_get_window(w_graph));