updated doc with libatasmart information

[psensor.git] / src / graph.c

diff --git a/src/graph.c b/src/graph.c
index bd67a9e..26a84d3 100644 (file)
--- a/src/graph.c
+++ b/src/graph.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010-2011 jeanfi@gmail.com
+ * Copyright (C) 2010-2012 jeanfi@gmail.com
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -73,11 +73,33 @@ static char *time_to_str(time_t s)
 
 static void
 draw_graph_background(cairo_t *cr,
-                     int width, int height, struct config *config)
+                     int g_xoff, int g_yoff,
+                     int g_width, int g_height,
+                     int width, int height, struct config *config,
+                     GtkWidget *widget)
 {
+       GtkStyle *style;
        struct color *bgcolor = config->graph_bgcolor;
+       GdkColor *bg;
 
-       /* draw background */
+       style = gtk_widget_get_style(widget);
+
+       bg = &style->bg[GTK_STATE_NORMAL];
+
+       if (config->alpha_channel_enabled)
+               cairo_set_source_rgba(cr,
+                                     ((double)bg->red) / 65535,
+                                     ((double)bg->green) / 65535,
+                                     ((double)bg->blue) / 65535,
+                                     config->graph_bg_alpha);
+       else
+               cairo_set_source_rgb(cr,
+                                    ((double)bg->red) / 65535,
+                                    ((double)bg->green) / 65535,
+                                    ((double)bg->blue) / 65535);
+
+       cairo_rectangle(cr, 0, 0, width, height);
+       cairo_fill(cr);
        if (config->alpha_channel_enabled)
                cairo_set_source_rgba(cr,
                                      bgcolor->f_red,
@@ -88,16 +110,16 @@ draw_graph_background(cairo_t *cr,
                                     bgcolor->f_red,
                                     bgcolor->f_green, bgcolor->f_blue);
 
-       cairo_rectangle(cr, 0, 0, width, height);
+
+
+       cairo_rectangle(cr, g_xoff, g_yoff, g_width, g_height);
        cairo_fill(cr);
 }
 
 /* setup dash style */
 static double dashes[] = {
        1.0,            /* ink */
-       1.0,            /* skip */
-       1.0,            /* ink */
-       1.0             /* skip */
+       2.0,            /* skip */
 };
 static int ndash = sizeof(dashes) / sizeof(dashes[0]);
 
@@ -110,8 +132,8 @@ static void draw_background_lines(cairo_t *cr,
        int i;
 
        /* draw background lines */
-       cairo_set_dash(cr, dashes, ndash, 0);
        cairo_set_line_width(cr, 1);
+       cairo_set_dash(cr, dashes, ndash, 0);
        cairo_set_source_rgb(cr,
                             color->f_red, color->f_green, color->f_blue);
 
@@ -136,7 +158,6 @@ static void draw_background_lines(cairo_t *cr,
 
        /* back to normal line style */
        cairo_set_dash(cr, 0, 0, 0);
-
 }
 
 static void draw_sensor_curve(struct psensor *s,
@@ -150,27 +171,28 @@ static void draw_sensor_curve(struct psensor *s,
                              int g_xoff,
                              int g_yoff)
 {
-       int first = 1;
-       int i;
+       int first, i, x, y, t, dt, vdt;
+       double v;
 
        cairo_set_source_rgb(cr,
                             s->color->f_red,
                             s->color->f_green,
                             s->color->f_blue);
-       cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
-       cairo_set_line_width(cr, 1);
 
+       dt = et - bt;
+       first = 1;
        for (i = 0; i < s->values_max_length; i++) {
-               int x, y, t;
-               double v;
-
                t = s->measures[i].time.tv_sec;
                v = s->measures[i].value.d_num;
 
-               if (v == UNKNOWN_DBL_VALUE || !t || (t - bt) < 0)
+               if (v == UNKNOWN_DBL_VALUE || !t)
+                       continue;
+
+               vdt = t - bt;
+               if (vdt < 0)
                        continue;
 
-               x = (t - bt) * g_width / (et - bt) + g_xoff;
+               x = vdt * g_width / dt + g_xoff;
 
                y = compute_y(v, min, max, g_height, g_yoff);
 
@@ -226,8 +248,6 @@ graph_update(struct psensor **sensors,
        cst = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
        cr = cairo_create(cst);
 
-       draw_graph_background(cr, width, height, config);
-
        cairo_select_font_face(cr,
                               "sans-serif",
                               CAIRO_FONT_SLANT_NORMAL,
@@ -254,6 +274,11 @@ graph_update(struct psensor **sensors,
 
        g_width = width - g_xoff - GRAPH_H_PADDING;
 
+       draw_graph_background(cr,
+                             g_xoff, g_yoff, g_width, g_height,
+                             width, height, config,
+                             w_graph);
+
        cairo_set_source_rgb(cr,
                             fgcolor->f_red, fgcolor->f_green, fgcolor->f_blue);
 
@@ -290,6 +315,9 @@ graph_update(struct psensor **sensors,
 
        if (bt && et) {
                sensor_cur = sensors;
+
+               cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
+               cairo_set_line_width(cr, 1);
                while (*sensor_cur) {
                        struct psensor *s = *sensor_cur;