gtk2/gtk/gtkcolumnviewtitle.c

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/*
* Copyright © 2019 Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtkcolumnviewtitleprivate.h"
#include "gtkcolumnviewprivate.h"
#include "gtkcolumnviewcolumnprivate.h"
#include "gtkcolumnviewsorterprivate.h"
#include "gtkintl.h"
#include "gtklabel.h"
#include "gtkwidgetprivate.h"
#include "gtkbox.h"
#include "gtkimage.h"
#include "gtkgestureclick.h"
struct _GtkColumnViewTitle
{
GtkWidget parent_instance;
GtkColumnViewColumn *column;
GtkWidget *box;
GtkWidget *title;
GtkWidget *sort;
};
struct _GtkColumnViewTitleClass
{
GtkWidgetClass parent_class;
};
G_DEFINE_TYPE (GtkColumnViewTitle, gtk_column_view_title, GTK_TYPE_WIDGET)
static void
gtk_column_view_title_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkWidget *child = gtk_widget_get_first_child (widget);
if (child)
gtk_widget_measure (child, orientation, for_size, minimum, natural, minimum_baseline, natural_baseline);
}
static void
gtk_column_view_title_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkWidget *child = gtk_widget_get_first_child (widget);
if (child)
gtk_widget_allocate (child, width, height, baseline, NULL);
}
static void
gtk_column_view_title_dispose (GObject *object)
{
GtkColumnViewTitle *self = GTK_COLUMN_VIEW_TITLE (object);
g_clear_pointer (&self->box, gtk_widget_unparent);
g_clear_object (&self->column);
G_OBJECT_CLASS (gtk_column_view_title_parent_class)->dispose (object);
}
static void
gtk_column_view_title_class_init (GtkColumnViewTitleClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
widget_class->measure = gtk_column_view_title_measure;
widget_class->size_allocate = gtk_column_view_title_size_allocate;
gobject_class->dispose = gtk_column_view_title_dispose;
gtk_widget_class_set_css_name (widget_class, I_("button"));
}
static void
gtk_column_view_title_resize_func (GtkWidget *widget)
{
GtkColumnViewTitle *self = GTK_COLUMN_VIEW_TITLE (widget);
if (self->column)
gtk_column_view_column_queue_resize (self->column);
}
static void
click_pressed_cb (GtkGestureClick *gesture,
guint n_press,
gdouble x,
gdouble y,
GtkWidget *widget)
{
GtkColumnViewTitle *self = GTK_COLUMN_VIEW_TITLE (widget);
GtkSorter *sorter;
GtkColumnView *view;
GtkColumnViewSorter *view_sorter;
sorter = gtk_column_view_column_get_sorter (self->column);
if (sorter == NULL)
return;
view = gtk_column_view_column_get_column_view (self->column);
view_sorter = GTK_COLUMN_VIEW_SORTER (gtk_column_view_get_sorter (view));
gtk_column_view_sorter_add_column (view_sorter, self->column);
}
static void
gtk_column_view_title_init (GtkColumnViewTitle *self)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkGesture *gesture;
widget->priv->resize_func = gtk_column_view_title_resize_func;
self->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_set_parent (self->box, widget);
self->title = gtk_label_new (NULL);
gtk_box_append (GTK_BOX (self->box), self->title);
self->sort = gtk_image_new ();
gtk_box_append (GTK_BOX (self->box), self->sort);
gesture = gtk_gesture_click_new ();
g_signal_connect (gesture, "pressed", G_CALLBACK (click_pressed_cb), self);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (gesture));
}
GtkWidget *
gtk_column_view_title_new (GtkColumnViewColumn *column)
{
GtkColumnViewTitle *title;
title = g_object_new (GTK_TYPE_COLUMN_VIEW_TITLE, NULL);
title->column = g_object_ref (column);
gtk_column_view_title_update (title);
return GTK_WIDGET (title);
}
void
gtk_column_view_title_update (GtkColumnViewTitle *self)
{
GtkSorter *sorter;
GtkColumnView *view;
GtkColumnViewSorter *view_sorter;
gboolean inverted;
GtkColumnViewColumn *active;
gtk_label_set_label (GTK_LABEL (self->title), gtk_column_view_column_get_title (self->column));
sorter = gtk_column_view_column_get_sorter (self->column);
if (sorter)
{
view = gtk_column_view_column_get_column_view (self->column);
view_sorter = GTK_COLUMN_VIEW_SORTER (gtk_column_view_get_sorter (view));
active = gtk_column_view_sorter_get_sort_column (view_sorter, &inverted);
gtk_widget_show (self->sort);
if (self->column == active)
{
if (inverted)
gtk_image_set_from_icon_name (GTK_IMAGE (self->sort), "pan-down-symbolic");
else
gtk_image_set_from_icon_name (GTK_IMAGE (self->sort), "pan-up-symbolic");
}
else
gtk_image_clear (GTK_IMAGE (self->sort));
}
else
gtk_widget_hide (self->sort);
}
GtkColumnViewColumn *
gtk_column_view_title_get_column (GtkColumnViewTitle *self)
{
return self->column;
}