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sparkline: Add color property so sparclines in the same widget can have different colors (Guido Gunther)

This commit is contained in:
Cole Robinson 2008-10-07 10:09:03 -04:00
parent 251b5bc516
commit 6923dbfc2a
1 changed files with 21 additions and 5 deletions
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26
src/graphWidgets/sparkline.c
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@ -45,6 +45,7 @@ enum {
PROP_FILLED,
PROP_REVERSED,
PROP_NUMSETS,
PROP_RGB_ARRAY,
};
static gpointer parent_class;
@ -59,6 +60,7 @@ struct _GtkSparklinePrivate
gint num_sets;
gint points_per_set;
GValueArray *data_array;
GValueArray *rgb_array;
};
@ -96,6 +98,7 @@ static void gtk_sparkline_init (GtkSparkline *sparkline)
priv->filled = TRUE;
priv->reversed = FALSE;
priv->data_array = g_value_array_new(0);
priv->rgb_array = g_value_array_new(0);
priv->num_sets = 1;
priv->points_per_set = 0;
@ -156,6 +159,13 @@ static void gtk_sparkline_class_init (GtkSparklineClass *class)
"process data from back to front",
FALSE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_RGB_ARRAY,
g_param_spec_value_array ("rgb",
"RGB Array",
"GValueArray of rgb values",
data_array_spec,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_type_class_add_private (object_class, sizeof (GtkSparklinePrivate));
}
@ -220,6 +230,11 @@ gtk_sparkline_set_property (GObject *object,
gtk_widget_queue_draw(GTK_WIDGET(object));
break;
case PROP_RGB_ARRAY:
g_value_array_free(priv->rgb_array);
priv->rgb_array = g_value_array_copy(g_value_get_boxed(value));
break;
case PROP_FILLED:
priv->filled = g_value_get_boolean(value);
break;
@ -323,11 +338,12 @@ gtk_sparkline_expose (GtkWidget *widget,
cairo_set_line_width (cr, (double)0.5);
for (set=0; set < priv->num_sets; set++) {
/* FIXME: add property to add line color */
if (set)
cairo_set_source_rgb (cr, 0.25, 0.25, 0.25);
else
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
if (priv->rgb_array->n_values == priv->num_sets * 3) {
cairo_set_source_rgb (cr,
g_value_get_double(g_value_array_get_nth(priv->rgb_array, set*3)),
g_value_get_double(g_value_array_get_nth(priv->rgb_array, set*3+1)),
g_value_get_double(g_value_array_get_nth(priv->rgb_array, set*3+2)));
}
for (index=0; index < priv->points_per_set; index++) {
double cx = ((double)index * pixels_per_point);
double cy = get_y (priv, cell_area, data, set, index);