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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
View File

@ -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;
}

15
src/libsysprof-gtk/sysprof-chart-layer.h
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@ -35,10 +35,13 @@ struct _SysprofChartLayerClass
{
GtkWidgetClass parent_class;
void (*snapshot_motion) (SysprofChartLayer *self,
GtkSnapshot *snapshot,
double x,
double y);
gpointer (*lookup_item) (SysprofChartLayer *self,
double x,
double y);
void (*snapshot_motion) (SysprofChartLayer *self,
GtkSnapshot *snapshot,
double x,
double y);
/*< private >*/
gpointer _reserved[16];
@ -50,6 +53,10 @@ SYSPROF_AVAILABLE_IN_ALL
void sysprof_chart_layer_set_title (SysprofChartLayer *self,
const char *title);
SYSPROF_AVAILABLE_IN_ALL
gpointer sysprof_chart_layer_lookup_item (SysprofChartLayer *self,
double x,
double y);
SYSPROF_AVAILABLE_IN_ALL
void sysprof_chart_layer_snapshot_motion (SysprofChartLayer *self,
GtkSnapshot *snapshot,
double x,

17
src/libsysprof-gtk/sysprof-depth-layer.c
View File

@ -161,6 +161,22 @@ sysprof_depth_layer_snapshot_motion (SysprofChartLayer *layer,
gtk_snapshot_append_color (snapshot, &self->hover_color, &rect);
}
static gpointer
sysprof_depth_layer_lookup_item (SysprofChartLayer *layer,
double x,
double y)
{
SysprofDepthLayer *self = (SysprofDepthLayer *)layer;
const SysprofXYSeriesValue *v;
g_assert (SYSPROF_IS_DEPTH_LAYER (self));
if ((v = sysprof_depth_layer_get_value_at_coord (self, x, y, NULL)))
return g_list_model_get_item (sysprof_xy_series_get_model (self->series), v->index);
return NULL;
}
static void
sysprof_depth_layer_dispose (GObject *object)
{
@ -238,6 +254,7 @@ sysprof_depth_layer_class_init (SysprofDepthLayerClass *klass)
widget_class->snapshot = sysprof_depth_layer_snapshot;
chart_layer_class->lookup_item = sysprof_depth_layer_lookup_item;
chart_layer_class->snapshot_motion = sysprof_depth_layer_snapshot_motion;
properties[PROP_COLOR] =