/**
* uber_line_graph_set_antialias:
* @graph: A #UberLineGraph.
*
* XXX
*
* Returns: None.
* Side effects: None.
*/
void
uber_line_graph_set_antialias (UberLineGraph *graph, /* IN */
cairo_antialias_t antialias) /* IN */
{
UberLineGraphPrivate *priv;
g_return_if_fail(UBER_IS_LINE_GRAPH(graph));
priv = graph->priv;
priv->antialias = antialias;
uber_graph_redraw(UBER_GRAPH(graph));
}
/**
* uber_line_graph_add_line:
* @graph: A #UberLineGraph.
* @color: A #GdkColor for the line or %NULL.
*
* Adds a new line to the graph. If color is %NULL, the next value
* in the default color list will be used.
*
* See uber_line_graph_remove_line().
*
* Returns: The line identifier.
* Side effects: None.
*/
gint
uber_line_graph_add_line (UberLineGraph *graph, /* IN */
const GdkColor *color, /* IN */
UberLabel *label) /* IN */
{
UberLineGraphPrivate *priv;
LineInfo info = { 0 };
g_return_val_if_fail(UBER_IS_LINE_GRAPH(graph), 0);
priv = graph->priv;
info.alpha = 1.0;
info.width = 1.0;
/*
* Retrieve the lines color.
*/
if (color) {
info.color = *color;
} else {
gdk_color_parse("#729fcf", &info.color);
}
/*
* Allocate buffers for data points.
*/
info.raw_data = g_ring_sized_new(sizeof(gdouble), priv->stride, NULL);
uber_line_graph_init_ring(info.raw_data);
/*
* Store the newly crated line.
*/
g_array_append_val(priv->lines, info);
/*
* Mark the graph for full redraw.
*/
uber_graph_redraw(UBER_GRAPH(graph));
/*
* Attach label.
*/
if (label) {
uber_line_graph_bind_label(graph, priv->lines->len, label);
uber_graph_add_label(UBER_GRAPH(graph), label);
uber_label_set_color(label, &info.color);
}
/*
* Line indexes start from 1.
*/
return priv->lines->len;
}
/**
* uber_line_graph_set_line_width:
* @graph: A #UberLineGraph.
*
* XXX
*
* Returns: None.
* Side effects: None.
*/
void
uber_line_graph_set_line_width (UberLineGraph *graph, /* IN */
gint line, /* IN */
gdouble width) /* IN */
{
UberLineGraphPrivate *priv;
LineInfo *info;
g_return_if_fail(UBER_IS_LINE_GRAPH(graph));
g_return_if_fail(line > 0);
g_return_if_fail(line <= graph->priv->lines->len);
priv = graph->priv;
info = &g_array_index(graph->priv->lines, LineInfo, line - 1);
info->width = width;
uber_graph_redraw(UBER_GRAPH(graph));
}
/**
* uber_line_graph_color:
* @graph: A #UberLineGraph.
*
* XXX
*
* Returns: None.
* Side effects: None.
*/
static void
uber_line_graph_color_changed (UberLabel *label, /* IN */
GdkColor *color, /* IN */
UberLineGraph *graph) /* IN */
{
UberLineGraphPrivate *priv;
LineInfo *info;
gint i;
g_return_if_fail(UBER_IS_LINE_GRAPH(graph));
g_return_if_fail(color != NULL);
priv = graph->priv;
for (i = 0; i < priv->lines->len; i++) {
info = &g_array_index(priv->lines, LineInfo, i);
if (info->label == label) {
info->color = *color;
}
}
uber_graph_redraw(UBER_GRAPH(graph));
}