1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
#include "gtkgizmoprivate.h"
#include "gtkwidgetprivate.h"
G_DEFINE_TYPE (GtkGizmo, gtk_gizmo, GTK_TYPE_WIDGET);
static void
gtk_gizmo_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkGizmo *self = GTK_GIZMO (widget);
if (self->measure_func)
self->measure_func (self, orientation, for_size,
minimum, natural,
minimum_baseline, natural_baseline);
}
static void
gtk_gizmo_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkGizmo *self = GTK_GIZMO (widget);
GtkAllocation clip = *allocation;
if (self->allocate_func)
self->allocate_func (self,
allocation,
gtk_widget_get_allocated_baseline (widget),
&clip);
gtk_widget_set_clip (widget, &clip);
}
static void
gtk_gizmo_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkGizmo *self = GTK_GIZMO (widget);
if (self->snapshot_func)
self->snapshot_func (self, snapshot);
}
static void
gtk_gizmo_class_init (GtkGizmoClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->measure = gtk_gizmo_measure;
widget_class->size_allocate = gtk_gizmo_size_allocate;
widget_class->snapshot = gtk_gizmo_snapshot;
}
static void
gtk_gizmo_init (GtkGizmo *self)
{
gtk_widget_set_has_window (GTK_WIDGET (self), FALSE);
}
GtkWidget *
gtk_gizmo_new (const char *css_name,
GtkGizmoMeasureFunc measure_func,
GtkGizmoAllocateFunc allocate_func,
GtkGizmoSnapshotFunc snapshot_func)
{
GtkGizmo *gizmo = GTK_GIZMO (g_object_new (GTK_TYPE_GIZMO,
"css-name", css_name,
NULL));
gizmo->measure_func = measure_func;
gizmo->allocate_func = allocate_func;
gizmo->snapshot_func = snapshot_func;
return GTK_WIDGET (gizmo);
}
|
