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/* -*- 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-common.h"
#include "gs-review-histogram.h"
#include "gs-review-bar.h"
#include "gs-star-image.h"
typedef struct
{
GtkWidget *bar1;
GtkWidget *bar2;
GtkWidget *bar3;
GtkWidget *bar4;
GtkWidget *bar5;
GtkWidget *label_value;
GtkWidget *label_total;
GtkWidget *star_value_1;
GtkWidget *star_value_2;
GtkWidget *star_value_3;
GtkWidget *star_value_4;
GtkWidget *star_value_5;
} GsReviewHistogramPrivate;
G_DEFINE_TYPE_WITH_PRIVATE (GsReviewHistogram, gs_review_histogram, GTK_TYPE_WIDGET)
void
gs_review_histogram_set_ratings (GsReviewHistogram *histogram,
gint rating_percent,
GArray *review_ratings)
{
GsReviewHistogramPrivate *priv = gs_review_histogram_get_instance_private (histogram);
g_autofree gchar *text = NULL;
gdouble fraction[6] = { 0.0f };
guint32 max = 0;
guint32 total = 0;
g_return_if_fail (GS_IS_REVIEW_HISTOGRAM (histogram));
/* sanity check */
if (review_ratings->len != 6) {
g_warning ("ratings data incorrect expected 012345");
return;
}
/* idx 0 is '0 stars' which we don't support in the UI */
for (guint i = 1; i < review_ratings->len; i++) {
guint32 c = g_array_index (review_ratings, guint32, i);
max = MAX (c, max);
}
for (guint i = 1; i < review_ratings->len; i++) {
guint32 c = g_array_index (review_ratings, guint32, i);
fraction[i] = max > 0 ? (gdouble) c / (gdouble) max : 0.f;
total += c;
}
gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar5), fraction[5]);
gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar4), fraction[4]);
gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar3), fraction[3]);
gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar2), fraction[2]);
gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar1), fraction[1]);
text = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, "%u review total", "%u reviews total", total), total);
gtk_label_set_text (GTK_LABEL (priv->label_total), text);
g_clear_pointer (&text, g_free);
/* Round explicitly, to avoid rounding inside the printf() call and to use
the same value also for the stars fraction. */
fraction[0] = total > 0 ? round (((gdouble) rating_percent ) * 50.0 / 100.0) / 10.0 : 0.0;
text = g_strdup_printf ("%.01f", fraction[0]);
gtk_label_set_text (GTK_LABEL (priv->label_value), text);
gs_star_image_set_fraction (GS_STAR_IMAGE (priv->star_value_1), CLAMP (fraction[0], 0.0, 1.0));
gs_star_image_set_fraction (GS_STAR_IMAGE (priv->star_value_2), CLAMP (fraction[0], 1.0, 2.0) - 1.0);
gs_star_image_set_fraction (GS_STAR_IMAGE (priv->star_value_3), CLAMP (fraction[0], 2.0, 3.0) - 2.0);
gs_star_image_set_fraction (GS_STAR_IMAGE (priv->star_value_4), CLAMP (fraction[0], 3.0, 4.0) - 3.0);
gs_star_image_set_fraction (GS_STAR_IMAGE (priv->star_value_5), CLAMP (fraction[0], 4.0, 5.0) - 4.0);
}
static void
gs_review_histogram_dispose (GObject *object)
{
gs_widget_remove_all (GTK_WIDGET (object), NULL);
G_OBJECT_CLASS (gs_review_histogram_parent_class)->dispose (object);
}
static void
gs_review_histogram_init (GsReviewHistogram *histogram)
{
gtk_widget_init_template (GTK_WIDGET (histogram));
}
static void
gs_review_histogram_class_init (GsReviewHistogramClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->dispose = gs_review_histogram_dispose;
gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/Software/gs-review-histogram.ui");
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, bar5);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, bar4);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, bar3);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, bar2);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, bar1);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, label_value);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, label_total);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, star_value_1);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, star_value_2);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, star_value_3);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, star_value_4);
gtk_widget_class_bind_template_child_private (widget_class, GsReviewHistogram, star_value_5);
}
GtkWidget *
gs_review_histogram_new (void)
{
GsReviewHistogram *histogram;
histogram = g_object_new (GS_TYPE_REVIEW_HISTOGRAM, NULL);
return GTK_WIDGET (histogram);
}
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