#include "graph.h"
#include "flist.h"
#include "lib/prio_tree.h"
+#include "cairo_text_helpers.h"
/*
* Allowable difference to show tooltip
enum {
GV_F_ON_PRIO = 1,
+ GV_F_PRIO_SKIP = 2,
};
struct graph_value {
struct flist_head value_list;
struct prio_tree_root prio_tree;
double r, g, b;
+ int hide;
int value_count;
struct graph *parent;
};
graph_axis_unit_change_callback x_axis_unit_change_callback;
graph_axis_unit_change_callback y_axis_unit_change_callback;
unsigned int base_offset;
+ unsigned int dont_graph_all_zeroes;
double left_extra;
double right_extra;
double top_extra;
g->per_label_limit = -1;
g->font = font;
if (!g->font)
- g->font = "Sans";
+ g->font = GRAPH_DEFAULT_FONT;
return g;
}
+void graph_set_font(struct graph *g, const char *font)
+{
+ g->font = font;
+}
+
void graph_x_axis_unit_change_notify(struct graph *g, graph_axis_unit_change_callback f)
{
g->x_axis_unit_change_callback = f;
double answer, tmp;
int first = 1;
- assert(!flist_empty(&l->value_list));
- answer = 0.0; /* shut the compiler up, might need to think harder though. */
+ if (flist_empty(&l->value_list))
+ return 0.0;
+
flist_for_each(entry, &l->value_list) {
struct graph_value *i;
int first = 1;
double answer, tmp;
- assert(!flist_empty(&g->label_list));
- answer = 0.0; /* shut the compiler up, might need to think harder though. */
+ if (flist_empty(&g->label_list))
+ return 0.0;
+
flist_for_each(entry, &g->label_list) {
i = flist_entry(entry, struct graph_label, list);
tmp = find_double_values(i, cmp);
}
}
-static void draw_aligned_text(struct graph *g, cairo_t *cr, double x, double y,
- double fontsize, const char *text, int alignment)
-{
-#define CENTERED 0
-#define LEFT_JUSTIFIED 1
-#define RIGHT_JUSTIFIED 2
-
- double factor, direction;
- cairo_text_extents_t extents;
-
- switch(alignment) {
- case CENTERED:
- direction = -1.0;
- factor = 0.5;
- break;
- case RIGHT_JUSTIFIED:
- direction = -1.0;
- factor = 1.0;
- break;
- case LEFT_JUSTIFIED:
- default:
- direction = 1.0;
- factor = 1.0;
- break;
- }
- cairo_select_font_face (cr, g->font, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
-
- cairo_set_font_size(cr, fontsize);
- cairo_text_extents(cr, text, &extents);
- x = x + direction * (factor * extents.width + extents.x_bearing);
- y = y - (extents.height / 2 + extents.y_bearing);
-
- cairo_move_to(cr, x, y);
- cairo_show_text(cr, text);
-}
-
-static inline void draw_centered_text(struct graph *g, cairo_t *cr, double x, double y,
- double fontsize, const char *text)
-{
- draw_aligned_text(g, cr, x, y, fontsize, text, CENTERED);
-}
-
-static inline void draw_right_justified_text(struct graph *g, cairo_t *cr,
- double x, double y,
- double fontsize, const char *text)
-{
- draw_aligned_text(g, cr, x, y, fontsize, text, RIGHT_JUSTIFIED);
-}
-
-static inline void draw_left_justified_text(struct graph *g, cairo_t *cr,
- double x, double y,
- double fontsize, const char *text)
-{
- draw_aligned_text(g, cr, x, y, fontsize, text, LEFT_JUSTIFIED);
-}
-
-static void draw_vertical_centered_text(struct graph *g, cairo_t *cr, double x,
- double y, double fontsize,
- const char *text)
-{
- double sx, sy;
- cairo_text_extents_t extents;
-
- cairo_select_font_face(cr, g->font, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
-
- cairo_set_font_size(cr, fontsize);
- cairo_text_extents(cr, text, &extents);
- sx = x;
- sy = y;
- y = y + (extents.width / 2.0 + extents.x_bearing);
- x = x - (extents.height / 2.0 + extents.y_bearing);
-
- cairo_move_to(cr, x, y);
- cairo_save(cr);
- cairo_translate(cr, -sx, -sy);
- cairo_rotate(cr, -90.0 * M_PI / 180.0);
- cairo_translate(cr, sx, sy);
- cairo_show_text(cr, text);
- cairo_restore(cr);
-}
-
static void graph_draw_common(struct graph *g, cairo_t *cr,
double *x1, double *y1, double *x2, double *y2)
{
- cairo_set_source_rgb(cr, 0, 0, 0);
- cairo_set_line_width (cr, 0.8);
+ cairo_set_source_rgb(cr, 0, 0, 0);
+ cairo_set_line_width (cr, 0.8);
*x1 = 0.10 * g->xdim;
*x2 = 0.95 * g->xdim;
cairo_line_to(cr, *x1, *y1);
cairo_stroke(cr);
- draw_centered_text(g, cr, g->xdim / 2, g->ydim / 20, 20.0, g->title);
- draw_centered_text(g, cr, g->xdim / 2, g->ydim * 0.97, 14.0, g->xtitle);
- draw_vertical_centered_text(g, cr, g->xdim * 0.02, g->ydim / 2, 14.0, g->ytitle);
+ draw_centered_text(cr, g->font, g->xdim / 2, g->ydim / 20, 20.0, g->title);
+ draw_centered_text(cr, g->font, g->xdim / 2, g->ydim * 0.97, 14.0, g->xtitle);
+ draw_vertical_centered_text(cr, g->font, g->xdim * 0.02, g->ydim / 2, 14.0, g->ytitle);
cairo_stroke(cr);
}
continue;
/* draw tickmark label */
- draw_centered_text(g, cr, tx, y2 * 1.04, 12.0, tm[i].string);
+ draw_centered_text(cr, g->font, tx, y2 * 1.04, 12.0, tm[i].string);
cairo_stroke(cr);
}
}
continue;
/* draw tickmark label */
- draw_right_justified_text(g, cr, x1 - (x2 - x1) * 0.025, ty, 12.0, tm[i].string);
+ draw_right_justified_text(cr, g->font, x1 - (x2 - x1) * 0.025, ty, 12.0, tm[i].string);
cairo_stroke(cr);
}
maxdata = find_max_data(bg);
if (fabs(maxdata - mindata) < 1e-20) {
- draw_centered_text(bg, cr,
+ draw_centered_text(cr, bg->font,
x1 + (x2 - x1) / 2.0,
y1 + (y2 - y1) / 2.0, 20.0, "No good data");
return;
label_offset = bg->xdim * 0.1 + space_per_label * (double) i + space_per_label * 0.1;
draw_bars(bg, cr, lb, label_offset, bar_width, mindata, maxdata);
// draw_centered_text(cr, label_offset + (bar_width / 2.0 + bar_width * 0.1), bg->ydim * 0.93,
- draw_centered_text(bg, cr, x1 + space_per_label * (i + 0.5), bg->ydim * 0.93,
+ draw_centered_text(cr, bg->font, x1 + space_per_label * (i + 0.5), bg->ydim * 0.93,
12.0, lb->label);
i++;
}
}
return answer;
-}
+}
void line_graph_draw(struct graph *g, cairo_t *cr)
{
flist_for_each(lentry, &g->label_list) {
i = flist_entry(lentry, struct graph_label, list);
first = 1;
- if (i->r < 0) /* invisible data */
+ if (i->hide || i->r < 0) /* invisible data */
continue;
cairo_set_source_rgb(cr, i->r, i->g, i->b);
return NULL;
}
-void graph_add_label(struct graph *bg, const char *label)
+graph_label_t graph_add_label(struct graph *bg, const char *label)
{
struct graph_label *i;
i = graph_find_label(bg, label);
if (i)
- return; /* already present. */
+ return i; /* already present. */
i = calloc(1, sizeof(*i));
INIT_FLIST_HEAD(&i->value_list);
i->parent = bg;
setstring(&i->label, label);
flist_add_tail(&i->list, &bg->label_list);
INIT_PRIO_TREE_ROOT(&i->prio_tree);
+ return i;
}
static void __graph_value_drop(struct graph_label *l, struct graph_value *v)
static void graph_value_drop(struct graph_label *l, struct graph_value *v)
{
+ if (v->flags & GV_F_PRIO_SKIP) {
+ __graph_value_drop(l, v);
+ return;
+ }
+
/*
* Find head, the guy that's on the prio tree
*/
flist_add_tail(&x->alias, &alias->alias);
} else
x->flags = GV_F_ON_PRIO;
- }
+ } else
+ x->flags = GV_F_PRIO_SKIP;
if (g->per_label_limit != -1 &&
i->value_count > g->per_label_limit) {
}
}
-int graph_add_data(struct graph *bg, const char *label, const double value)
+int graph_add_data(struct graph *bg, graph_label_t label, const double value)
{
- struct graph_label *i;
+ struct graph_label *i = label;
double *d;
d = malloc(sizeof(*d));
*d = value;
- i = graph_find_label(bg, label);
- if (!i)
- return -1;
graph_label_add_value(i, d, NULL);
return 0;
}
-int graph_add_xy_data(struct graph *bg, const char *label,
+static int graph_nonzero_y(struct graph_label *l)
+{
+ struct flist_head *entry;
+
+ flist_for_each(entry, &l->value_list) {
+ struct graph_value *v;
+
+ v = flist_entry(entry, struct graph_value, list);
+ if (gety(v) != 0.0)
+ return 1;
+ }
+
+ return 0;
+}
+
+int graph_add_xy_data(struct graph *bg, graph_label_t label,
const double x, const double y, const char *tooltip)
{
- struct graph_label *i;
+ struct graph_label *i = label;
struct xyvalue *xy;
+ if (bg->dont_graph_all_zeroes && y == 0.0 && !graph_nonzero_y(i))
+ i->hide = 1;
+ else
+ i->hide = 0;
+
xy = malloc(sizeof(*xy));
xy->x = x;
xy->y = y;
- i = graph_find_label(bg, label);
- if (!i)
- return -1;
-
graph_label_add_value(i, xy, tooltip);
return 0;
}
}
}
-void graph_set_color(struct graph *gr, const char *label,
- double red, double green, double blue)
+void graph_set_color(struct graph *gr, graph_label_t label, double red,
+ double green, double blue)
{
- struct flist_head *entry;
- struct graph_label *i;
+ struct graph_label *i = label;
double r, g, b;
if (red < 0.0) { /* invisible color */
b = 1.0;
}
- flist_for_each(entry, &gr->label_list) {
- i = flist_entry(entry, struct graph_label, list);
-
- if (strcmp(i->label, label) == 0) {
- i->r = r;
- i->g = g;
- i->b = b;
- break;
- }
- }
+ i->r = r;
+ i->g = g;
+ i->b = b;
}
void graph_free(struct graph *bg)
struct graph_label *i;
i = flist_entry(entry, struct graph_label, list);
+ if (i->hide)
+ continue;
INIT_PRIO_TREE_ITER(&iter);
prio_tree_iter_init(&iter, &i->prio_tree, x, x);
return NULL;
}
+
+void graph_set_graph_all_zeroes(struct graph *g, unsigned int set)
+{
+ g->dont_graph_all_zeroes = !set;
+}
projects / fio.git / blobdiff