summaryrefslogtreecommitdiff
path: root/graph.c
diff options
context:
space:
mode:
authorJens Axboe <axboe@kernel.dk>2012-03-13 09:45:22 +0100
committerJens Axboe <axboe@kernel.dk>2012-03-13 09:45:22 +0100
commit93e2db2bdbedbd6954bb0e0632514cae659fc30e (patch)
tree91248e86812137a1ff9b25880ec8fed7a2448afa /graph.c
parentf5c6726e5c9fc0077c3c6d682e5453372942a21e (diff)
downloadfio-93e2db2bdbedbd6954bb0e0632514cae659fc30e.tar.gz
fio-93e2db2bdbedbd6954bb0e0632514cae659fc30e.tar.bz2
gfio: add support for graph tooltips
Will show the actual value logged at that point. Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'graph.c')
-rw-r--r--graph.c72
1 files changed, 68 insertions, 4 deletions
diff --git a/graph.c b/graph.c
index 6cf511d1..aba095ba 100644
--- a/graph.c
+++ b/graph.c
@@ -24,6 +24,7 @@
#include <malloc.h>
#include <math.h>
#include <assert.h>
+#include <stdlib.h>
#include <cairo.h>
#include <gtk/gtk.h>
@@ -33,10 +34,12 @@
struct xyvalue {
double x, y;
+ int gx, gy;
};
struct graph_value {
struct graph_value *next;
+ char *tooltip;
void *value;
};
@@ -47,6 +50,7 @@ struct graph_label {
struct graph_label *next;
double r, g, b;
int value_count;
+ unsigned int tooltip_count;
struct graph *parent;
};
@@ -533,6 +537,8 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
continue;
cairo_set_source_rgb(cr, i->r, i->g, i->b);
for (j = i->values; j; j = j->next) {
+ struct xyvalue *xy = j->value;
+
tx = ((getx(j) - gminx) / (gmaxx - gminx)) * (x2 - x1) + x1;
ty = y2 - ((gety(j) - gminy) / (gmaxy - gminy)) * (y2 - y1);
if (first) {
@@ -541,6 +547,8 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
} else {
cairo_line_to(cr, tx, ty);
}
+ xy->gx = tx;
+ xy->gy = ty;
}
cairo_stroke(cr);
}
@@ -606,12 +614,17 @@ void graph_add_label(struct graph *bg, const char *label)
bg->tail = i;
}
-static void graph_label_add_value(struct graph_label *i, void *value)
+static void graph_label_add_value(struct graph_label *i, void *value,
+ const char *tooltip)
{
struct graph_value *x;
x = malloc(sizeof(*x));
x->value = value;
+ if (tooltip)
+ x->tooltip = strdup(tooltip);
+ else
+ x->tooltip = NULL;
x->next = NULL;
if (!i->tail) {
i->values = x;
@@ -620,6 +633,8 @@ static void graph_label_add_value(struct graph_label *i, void *value)
}
i->tail = x;
i->value_count++;
+ if (x->tooltip)
+ i->tooltip_count++;
if (i->parent->per_label_limit != -1 &&
i->value_count > i->parent->per_label_limit) {
@@ -637,6 +652,10 @@ static void graph_label_add_value(struct graph_label *i, void *value)
while (to_drop--) {
x = i->values;
i->values = i->values->next;
+ if (x->tooltip) {
+ free(x->tooltip);
+ i->tooltip_count--;
+ }
free(x->value);
free(x);
i->value_count--;
@@ -655,12 +674,12 @@ int graph_add_data(struct graph *bg, const char *label, const double value)
i = graph_find_label(bg, label);
if (!i)
return -1;
- graph_label_add_value(i, d);
+ graph_label_add_value(i, d, NULL);
return 0;
}
int graph_add_xy_data(struct graph *bg, const char *label,
- const double x, const double y)
+ const double x, const double y, const char *tooltip)
{
struct graph_label *i;
struct xyvalue *xy;
@@ -672,7 +691,8 @@ int graph_add_xy_data(struct graph *bg, const char *label,
i = graph_find_label(bg, label);
if (!i)
return -1;
- graph_label_add_value(i, xy);
+
+ graph_label_add_value(i, xy, tooltip);
return 0;
}
@@ -756,4 +776,48 @@ void graph_add_extra_space(struct graph *g, double left_percent, double right_pe
g->bottom_extra = bottom_percent;
}
+int graph_has_tooltips(struct graph *g)
+{
+ struct graph_label *i;
+
+ for (i = g->labels; i; i = i->next)
+ if (i->tooltip_count)
+ return 1;
+
+ return 0;
+}
+
+int graph_contains_xy(struct graph *g, int x, int y)
+{
+ int first_x = g->xoffset;
+ int last_x = g->xoffset + g->xdim;
+ int first_y = g->yoffset;
+ int last_y = g->yoffset + g->ydim;
+
+ return (x >= first_x && x <= last_x) && (y >= first_y && y <= last_y);
+}
+static int xy_match(struct xyvalue *xy, int x, int y)
+{
+ int xdiff = abs(xy->gx - x);
+ int ydiff = abs(xy->gy - y);
+
+ return xdiff <= 20 && ydiff <= 10;
+}
+
+const char *graph_find_tooltip(struct graph *g, int x, int y)
+{
+ struct graph_label *i;
+ struct graph_value *j;
+
+ for (i = g->labels; i; i = i->next) {
+ for (j = i->values; j; j = j->next) {
+ struct xyvalue *xy = j->value;
+
+ if (xy_match(xy, x - g->xoffset, y))
+ return j->tooltip;
+ }
+ }
+
+ return NULL;
+}