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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-review-bar.h"
struct _GsReviewBar
{
GtkBin parent_instance;
gdouble fraction;
};
G_DEFINE_TYPE (GsReviewBar, gs_review_bar, GTK_TYPE_BIN)
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 gboolean
gs_review_bar_draw (GtkWidget *widget, cairo_t *cr)
{
GtkStyleContext *context;
gdouble y_offset, bar_height;
GdkRGBA color;
context = gtk_widget_get_style_context (widget);
/* don't fill the complete height (too heavy beside GtkLabel of that height) */
y_offset = floor (0.15 * gtk_widget_get_allocated_height (widget));
bar_height = gtk_widget_get_allocated_height (widget) - (y_offset * 2);
gtk_render_background (context, cr,
0, y_offset,
gtk_widget_get_allocated_width (widget),
bar_height);
cairo_rectangle (cr,
0, y_offset,
round (GS_REVIEW_BAR (widget)->fraction * gtk_widget_get_allocated_width (widget)),
bar_height);
gtk_style_context_get_color (context, gtk_widget_get_state_flags (widget), &color);
cairo_set_source_rgba (cr, color.red, color.green, color.blue, color.alpha);
cairo_fill (cr);
return GTK_WIDGET_CLASS (gs_review_bar_parent_class)->draw (widget, cr);
}
static void
gs_review_bar_class_init (GsReviewBarClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->draw = gs_review_bar_draw;
}
GtkWidget *
gs_review_bar_new (void)
{
GsReviewBar *bar;
bar = g_object_new (GS_TYPE_REVIEW_BAR, NULL);
return GTK_WIDGET (bar);
}
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