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libsysprof-gtk: add vfunc to get a model item at x,y

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This commit is contained in:
Christian Hergert
2023-06-20 13:25:49 -07:00
parent 85b233d0d8
commit cf1b3ae16f
3 changed files with 54 additions and 4 deletions
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26
src/libsysprof-gtk/sysprof-chart-layer.c
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@ -142,3 +142,29 @@ sysprof_chart_layer_snapshot_motion (SysprofChartLayer *self,
if (SYSPROF_CHART_LAYER_GET_CLASS (self)->snapshot_motion)
SYSPROF_CHART_LAYER_GET_CLASS (self)->snapshot_motion (self, snapshot, x, y);
}
/**
* sysprof_chart_layer_lookup_item:
* @self: a #SysprofChartLayer
* @x: the coordinate on the X axis
* @y: the coordinate on the Y axis
*
* Locates an item at `(x,y)`.
*
* If no item is found at `(x,y)`, then %NULL is returned.
*
* Returns: (transfer full) (nullable) (type GObject): A #GObject
* if successful; otherwise %NULL.
*/
gpointer
sysprof_chart_layer_lookup_item (SysprofChartLayer *self,
double x,
double y)
{
g_return_val_if_fail (SYSPROF_IS_CHART_LAYER (self), NULL);
if (SYSPROF_CHART_LAYER_GET_CLASS (self)->lookup_item)
return SYSPROF_CHART_LAYER_GET_CLASS (self)->lookup_item (self, x, y);
return NULL;
}