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
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
* vi:set noexpandtab tabstop=8 shiftwidth=8:
*
* Copyright (C) 2016 Canonical Ltd.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include "config.h"
#include <math.h>
#include "gs-review-bar.h"
struct _GsReviewBar
{
GtkWidget parent_instance;
gdouble fraction;
};
G_DEFINE_TYPE (GsReviewBar, gs_review_bar, GTK_TYPE_WIDGET)
void
gs_review_bar_set_fraction (GsReviewBar *bar, gdouble fraction)
{
g_return_if_fail (GS_IS_REVIEW_BAR (bar));
bar->fraction = fraction;
}
static void
gs_review_bar_init (GsReviewBar *bar)
{
}
static void
gs_review_bar_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
gdouble bar_width, bar_height;
GdkRGBA color;
gtk_style_context_get_color (gtk_widget_get_style_context (widget), &color);
bar_width = round (GS_REVIEW_BAR (widget)->fraction * gtk_widget_get_width (widget));
bar_height = gtk_widget_get_height (widget);
gtk_snapshot_append_color (snapshot,
&color,
&GRAPHENE_RECT_INIT (0,
0,
bar_width,
bar_height));
GTK_WIDGET_CLASS (gs_review_bar_parent_class)->snapshot (widget, snapshot);
}
static void
gs_review_bar_class_init (GsReviewBarClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->snapshot = gs_review_bar_snapshot;
gtk_widget_class_set_css_name (widget_class, "review-bar");
}
GtkWidget *
gs_review_bar_new (void)
{
GsReviewBar *bar;
bar = g_object_new (GS_TYPE_REVIEW_BAR, NULL);
return GTK_WIDGET (bar);
}
|