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/*
* Copyright (C) 2017 Colomban Wendling <cwendling@hypra.fr>
*
* 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 2 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/>.
*/
/*
* A GtkButton that doesn't draw anything specific but the focus, and pass
* all drawing and sizing requests to its child.
*/
#define SN_FLAT_BUTTON_C
#include <gtk/gtk.h>
#include "sn-flat-button.h"
G_DEFINE_TYPE (SnFlatButton,
sn_flat_button,
GTK_TYPE_BUTTON)
static gboolean
sn_flat_button_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
if (child)
gtk_container_propagate_draw (GTK_CONTAINER (widget), child, cr);
if (gtk_widget_is_drawable (widget) && gtk_widget_has_focus (widget))
{
GtkStyleContext *context = gtk_widget_get_style_context (widget);
gdouble x1, y1, x2, y2;
cairo_clip_extents (cr, &x1, &y1, &x2, &y2);
gtk_render_focus (context, cr, x1, y1, x2 - x1, y2 - y1);
}
return child != NULL;
}
static void
sn_flat_button_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkWidget *child;
GTK_WIDGET_CLASS (sn_flat_button_parent_class)->size_allocate (widget,
allocation);
child = gtk_bin_get_child (GTK_BIN (widget));
if (child && gtk_widget_get_visible (child))
gtk_widget_size_allocate (child, allocation);
}
static GtkSizeRequestMode
sn_flat_button_get_request_mode (GtkWidget *widget)
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
if (child)
return gtk_widget_get_request_mode (child);
else
return GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_request_mode (widget);
}
static void
sn_flat_button_get_preferred_height (GtkWidget *widget,
gint *min,
gint *nat)
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
if (child)
gtk_widget_get_preferred_height (child, min, nat);
else
GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_height (widget, min, nat);
}
static void
sn_flat_button_get_preferred_width (GtkWidget *widget,
gint *min,
gint *nat)
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
if (child)
gtk_widget_get_preferred_width (child, min, nat);
else
GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_width (widget, min, nat);
}
static void
sn_flat_button_get_preferred_height_for_width (GtkWidget *widget,
gint width,
gint *min,
gint *nat)
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
if (child)
gtk_widget_get_preferred_height_for_width (child, width, min, nat);
else
GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_height_for_width (widget, width, min, nat);
}
static void
sn_flat_button_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *min,
gint *nat)
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
if (child)
gtk_widget_get_preferred_width_for_height (child, height, min, nat);
else
GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_width_for_height (widget, height, min, nat);
}
static void
sn_flat_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
gint width,
gint *min,
gint *nat,
gint *min_baseline,
gint *nat_baseline)
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
if (child)
gtk_widget_get_preferred_height_and_baseline_for_width (child, width, min, nat,
min_baseline, nat_baseline);
else
GTK_WIDGET_CLASS (sn_flat_button_parent_class)->get_preferred_height_and_baseline_for_width (widget, width,
min, nat,
min_baseline, nat_baseline);
}
static void
sn_flat_button_class_init (SnFlatButtonClass *klass)
{
GtkWidgetClass *widget_class;
widget_class = GTK_WIDGET_CLASS (klass);
widget_class->draw = sn_flat_button_draw;
widget_class->size_allocate = sn_flat_button_size_allocate;
widget_class->get_request_mode = sn_flat_button_get_request_mode;
widget_class->get_preferred_height = sn_flat_button_get_preferred_height;
widget_class->get_preferred_height_for_width = sn_flat_button_get_preferred_height_for_width;
widget_class->get_preferred_height_and_baseline_for_width = sn_flat_button_get_preferred_height_and_baseline_for_width;
widget_class->get_preferred_width = sn_flat_button_get_preferred_width;
widget_class->get_preferred_width_for_height = sn_flat_button_get_preferred_width_for_height;
}
static void
sn_flat_button_init (SnFlatButton *self)
{
gtk_button_set_relief (GTK_BUTTON (self), GTK_RELIEF_NONE);
}
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