/* dzl-bin.c
*
* Copyright (C) 2017 Christian Hergert <chergert@redhat.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define G_LOG_DOMAIN "dzl-bin"
#include "config.h"
/**
* SECTION:dzl-bin
* @title: DzlBin
*
* This is just a #GtkBin class that also allows for various styling with
* CSS over what can be done in GtkBin directly.
*/
#include <string.h>
#include "widgets/dzl-bin.h"
#include "util/dzl-util-private.h"
G_DEFINE_TYPE (DzlBin, dzl_bin, GTK_TYPE_BIN)
static gboolean
dzl_bin_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkStyleContext *style_context;
GtkWidget *child;
GtkAllocation alloc;
GtkStateFlags state;
GtkBorder margin;
g_assert (DZL_IS_BIN (widget));
gtk_widget_get_allocation (widget, &alloc);
alloc.x = 0;
alloc.y = 0;
style_context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
gtk_style_context_get_margin (style_context, state, &margin);
dzl_gtk_allocation_subtract_border (&alloc, &margin);
gtk_render_background (style_context, cr, alloc.x, alloc.y, alloc.width, alloc.height);
child = gtk_bin_get_child (GTK_BIN (widget));
if (child != NULL)
gtk_container_propagate_draw (GTK_CONTAINER (widget), child, cr);
gtk_render_frame (style_context, cr, alloc.x, alloc.y, alloc.width, alloc.height);
return FALSE;
}
static void
dzl_bin_size_allocate (GtkWidget *widget,
GtkAllocation *alloc)
{
DzlBin *self = (DzlBin *)widget;
GtkAllocation child_alloc = { 0 };
GtkWidget *child;
g_assert (DZL_IS_BIN (self));
g_assert (alloc != NULL);
child = gtk_bin_get_child (GTK_BIN (self));
if (child != NULL)
{
GtkStyleContext *style_context;
GtkBorder borders;
style_context = gtk_widget_get_style_context (widget);
child_alloc = *alloc;
if (gtk_widget_get_has_window (widget))
{
child_alloc.x = 0;
child_alloc.y = 0;
}
dzl_gtk_style_context_get_borders (style_context, &borders);
dzl_gtk_allocation_subtract_border (&child_alloc, &borders);
}
GTK_WIDGET_CLASS (dzl_bin_parent_class)->size_allocate (widget, alloc);
if (child != NULL)
gtk_widget_size_allocate (child, &child_alloc);
}
static void
dzl_bin_get_preferred_width (GtkWidget *widget,
gint *min_width,
gint *nat_width)
{
DzlBin *self = (DzlBin *)widget;
GtkStyleContext *style_context;
GtkWidget *child;
GtkBorder borders;
g_assert (DZL_IS_BIN (widget));
*min_width = 0;
*nat_width = 0;
child = gtk_bin_get_child (GTK_BIN (self));
if (child != NULL)
gtk_widget_get_preferred_width (child, min_width, nat_width);
style_context = gtk_widget_get_style_context (widget);
dzl_gtk_style_context_get_borders (style_context, &borders);
*min_width += (borders.left + borders.right);
*nat_width += (borders.left + borders.right);
}
static void
dzl_bin_get_preferred_height (GtkWidget *widget,
gint *min_height,
gint *nat_height)
{
DzlBin *self = (DzlBin *)widget;
GtkStyleContext *style_context;
GtkWidget *child;
GtkBorder borders;
g_assert (DZL_IS_BIN (widget));
*min_height = 0;
*nat_height = 0;
child = gtk_bin_get_child (GTK_BIN (self));
if (child != NULL)
gtk_widget_get_preferred_height (child, min_height, nat_height);
style_context = gtk_widget_get_style_context (widget);
dzl_gtk_style_context_get_borders (style_context, &borders);
*min_height += (borders.top + borders.bottom);
*nat_height += (borders.top + borders.bottom);
}
static void
dzl_bin_class_init (DzlBinClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->draw = dzl_bin_draw;
widget_class->get_preferred_width = dzl_bin_get_preferred_width;
widget_class->get_preferred_height = dzl_bin_get_preferred_height;
widget_class->size_allocate = dzl_bin_size_allocate;
gtk_widget_class_set_css_name (widget_class, "dzlbin");
}
static void
dzl_bin_init (DzlBin *self)
{
}
GtkWidget *
dzl_bin_new (void)
{
return g_object_new (DZL_TYPE_BIN, NULL);
}