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libsysprof-gtk: highlight item on motion

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This commit is contained in:
Christian Hergert
2023-06-20 12:46:15 -07:00
parent d68f2ff87a
commit b125f4e6e9
2 changed files with 112 additions and 8 deletions
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101
src/libsysprof-gtk/sysprof-depth-layer.c
View File

@ -27,11 +27,13 @@ struct _SysprofDepthLayer
SysprofChartLayer parent_instance;
SysprofXYSeries *series;
GdkRGBA color;
GdkRGBA hover_color;
};
enum {
PROP_0,
PROP_COLOR,
PROP_HOVER_COLOR,
PROP_SERIES,
N_PROPS
};
@ -89,6 +91,58 @@ sysprof_depth_layer_snapshot (GtkWidget *widget,
}
}
static void
sysprof_depth_layer_snapshot_motion (SysprofChartLayer *layer,
GtkSnapshot *snapshot,
double x,
double y)
{
SysprofDepthLayer *self = (SysprofDepthLayer *)layer;
const SysprofXYSeriesValue *values;
graphene_point_t point;
double min_x, max_x;
double min_y, max_y;
guint line_width;
guint n_values;
int width;
int height;
g_assert (SYSPROF_IS_DEPTH_LAYER (self));
g_assert (GTK_IS_SNAPSHOT (snapshot));
width = gtk_widget_get_width (GTK_WIDGET (self));
height = gtk_widget_get_height (GTK_WIDGET (self));
if (width == 0 || height == 0)
return;
if (self->series == NULL ||
!(values = sysprof_xy_series_get_values (self->series, &n_values)))
return;
point = GRAPHENE_POINT_INIT (x, y);
sysprof_xy_series_get_range (self->series, &min_x, &min_y, &max_x, &max_y);
line_width = MAX (1, width / (max_x - min_x));
for (guint i = 0; i < n_values; i++)
{
const SysprofXYSeriesValue *v = &values[i];
int line_height = ceilf (v->y * height);
graphene_rect_t rect = GRAPHENE_RECT_INIT (v->x * width,
height - line_height,
line_width,
line_height);
if (graphene_rect_contains_point (&rect, &point))
{
gtk_snapshot_append_color (snapshot, &self->hover_color, &rect);
break;
}
}
}
static void
sysprof_depth_layer_dispose (GObject *object)
{
@ -113,6 +167,10 @@ sysprof_depth_layer_get_property (GObject *object,
g_value_set_boxed (value, &self->color);
break;
case PROP_HOVER_COLOR:
g_value_set_boxed (value, &self->hover_color);
break;
case PROP_SERIES:
g_value_set_boxed (value, self->series);
break;
@ -136,6 +194,10 @@ sysprof_depth_layer_set_property (GObject *object,
sysprof_depth_layer_set_color (self, g_value_get_boxed (value));
break;
case PROP_HOVER_COLOR:
sysprof_depth_layer_set_hover_color (self, g_value_get_boxed (value));
break;
case PROP_SERIES:
sysprof_depth_layer_set_series (self, g_value_get_boxed (value));
break;
@ -150,6 +212,7 @@ sysprof_depth_layer_class_init (SysprofDepthLayerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
SysprofChartLayerClass *chart_layer_class = SYSPROF_CHART_LAYER_CLASS (klass);
object_class->dispose = sysprof_depth_layer_dispose;
object_class->get_property = sysprof_depth_layer_get_property;
@ -157,11 +220,18 @@ sysprof_depth_layer_class_init (SysprofDepthLayerClass *klass)
widget_class->snapshot = sysprof_depth_layer_snapshot;
chart_layer_class->snapshot_motion = sysprof_depth_layer_snapshot_motion;
properties[PROP_COLOR] =
g_param_spec_boxed ("color", NULL, NULL,
GDK_TYPE_RGBA,
(G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
properties[PROP_HOVER_COLOR] =
g_param_spec_boxed ("hover-color", NULL, NULL,
GDK_TYPE_RGBA,
(G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
properties[PROP_SERIES] =
g_param_spec_boxed ("series", NULL, NULL,
SYSPROF_TYPE_XY_SERIES,
@ -173,7 +243,8 @@ sysprof_depth_layer_class_init (SysprofDepthLayerClass *klass)
static void
sysprof_depth_layer_init (SysprofDepthLayer *self)
{
self->color.alpha = 1;
gdk_rgba_parse (&self->color, "#000");
gdk_rgba_parse (&self->hover_color, "#F00");
}
SysprofChartLayer *
@ -185,6 +256,8 @@ sysprof_depth_layer_new (void)
const GdkRGBA *
sysprof_depth_layer_get_color (SysprofDepthLayer *self)
{
g_return_val_if_fail (SYSPROF_IS_DEPTH_LAYER (self), NULL);
return &self->color;
}
@ -206,6 +279,32 @@ sysprof_depth_layer_set_color (SysprofDepthLayer *self,
}
}
const GdkRGBA *
sysprof_depth_layer_get_hover_color (SysprofDepthLayer *self)
{
g_return_val_if_fail (SYSPROF_IS_DEPTH_LAYER (self), NULL);
return &self->hover_color;
}
void
sysprof_depth_layer_set_hover_color (SysprofDepthLayer *self,
const GdkRGBA *hover_color)
{
static const GdkRGBA red = {1,0,0,1};
g_return_if_fail (SYSPROF_IS_DEPTH_LAYER (self));
if (hover_color == NULL)
hover_color = &red;
if (!gdk_rgba_equal (&self->hover_color, hover_color))
{
self->hover_color = *hover_color;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_HOVER_COLOR]);
}
}
/**
* sysprof_depth_layer_get_series:
* @self: a #SysprofDepthLayer

19
src/libsysprof-gtk/sysprof-depth-layer.h
View File

@ -34,16 +34,21 @@ SYSPROF_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (SysprofDepthLayer, sysprof_depth_layer, SYSPROF, DEPTH_LAYER, SysprofChartLayer)
SYSPROF_AVAILABLE_IN_ALL
SysprofChartLayer *sysprof_depth_layer_new (void);
SysprofChartLayer *sysprof_depth_layer_new (void);
SYSPROF_AVAILABLE_IN_ALL
const GdkRGBA *sysprof_depth_layer_get_color (SysprofDepthLayer *self);
const GdkRGBA *sysprof_depth_layer_get_color (SysprofDepthLayer *self);
SYSPROF_AVAILABLE_IN_ALL
void sysprof_depth_layer_set_color (SysprofDepthLayer *self,
const GdkRGBA *color);
void sysprof_depth_layer_set_color (SysprofDepthLayer *self,
const GdkRGBA *color);
SYSPROF_AVAILABLE_IN_ALL
SysprofXYSeries *sysprof_depth_layer_get_series (SysprofDepthLayer *self);
const GdkRGBA *sysprof_depth_layer_get_hover_color (SysprofDepthLayer *self);
SYSPROF_AVAILABLE_IN_ALL
void sysprof_depth_layer_set_series (SysprofDepthLayer *self,
SysprofXYSeries *series);
void sysprof_depth_layer_set_hover_color (SysprofDepthLayer *self,
const GdkRGBA *hover_color);
SYSPROF_AVAILABLE_IN_ALL
SysprofXYSeries *sysprof_depth_layer_get_series (SysprofDepthLayer *self);
SYSPROF_AVAILABLE_IN_ALL
void sysprof_depth_layer_set_series (SysprofDepthLayer *self,
SysprofXYSeries *series);
G_END_DECLS