expander.c

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/*
    This file is part of darktable,
    Copyright (C) 2015 Roman Lebedev.
    Copyright (C) 2016 Tobias Ellinghaus.
    Copyright (C) 2020 Chris Elston.
    Copyright (C) 2020 Heiko Bauke.
    Copyright (C) 2020-2021 Pascal Obry.
    Copyright (C) 2021 Diederik Ter Rahe.
    Copyright (C) 2022 Martin Bařinka.
    
    darktable 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.
    
    darktable 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 darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#include "dtgtk/expander.h"
 
#include <gtk/gtk.h>
 
G_DEFINE_TYPE(GtkDarktableExpander, dtgtk_expander, GTK_TYPE_BOX);
 
static void dtgtk_expander_class_init(GtkDarktableExpanderClass *class)
{
}
 
GtkWidget *dtgtk_expander_get_frame(GtkDarktableExpander *expander)
{
  g_return_val_if_fail(DTGTK_IS_EXPANDER(expander), NULL);
 
  return expander->frame;
}
 
GtkWidget *dtgtk_expander_get_header(GtkDarktableExpander *expander)
{
  g_return_val_if_fail(DTGTK_IS_EXPANDER(expander), NULL);
 
  return expander->header;
}
 
GtkWidget *dtgtk_expander_get_header_event_box(GtkDarktableExpander *expander)
{
  g_return_val_if_fail(DTGTK_IS_EXPANDER(expander), NULL);
 
  return expander->header_evb;
}
 
GtkWidget *dtgtk_expander_get_body(GtkDarktableExpander *expander)
{
  g_return_val_if_fail(DTGTK_IS_EXPANDER(expander), NULL);
 
  return expander->body;
}
 
GtkWidget *dtgtk_expander_get_body_event_box(GtkDarktableExpander *expander)
{
  g_return_val_if_fail(DTGTK_IS_EXPANDER(expander), NULL);
 
  return expander->body_evb;
}
 
void dtgtk_expander_set_expanded(GtkDarktableExpander *expander, gboolean expanded)
{
  g_return_if_fail(DTGTK_IS_EXPANDER(expander));
 
  expanded = expanded != FALSE;
 
  if(expander->expanded != expanded)
  {
    expander->expanded = expanded;
 
    GtkWidget *frame = expander->body;
 
    if(frame)
    {
      gtk_widget_set_visible(frame, expander->expanded);
    }
  }
}
 
gboolean dtgtk_expander_get_expanded(GtkDarktableExpander *expander)
{
  g_return_val_if_fail(DTGTK_IS_EXPANDER(expander), FALSE);
 
  return expander->expanded;
}
 
static void dtgtk_expander_init(GtkDarktableExpander *expander)
{
}
 
// public functions
GtkWidget *dtgtk_expander_new(GtkWidget *header, GtkWidget *body)
{
  GtkDarktableExpander *expander;
 
  g_return_val_if_fail(GTK_IS_WIDGET(header), NULL);
  g_return_val_if_fail(GTK_IS_WIDGET(body), NULL);
 
  expander
      = g_object_new(dtgtk_expander_get_type(), "orientation", GTK_ORIENTATION_VERTICAL, "spacing", 0, NULL);
  expander->expanded = -1;
  expander->header = header;
  expander->body = body;
 
  expander->header_evb = gtk_event_box_new();
  gtk_container_add(GTK_CONTAINER(expander->header_evb), expander->header);
  expander->body_evb = gtk_event_box_new();
  gtk_container_add(GTK_CONTAINER(expander->body_evb), expander->body);
  expander->frame = gtk_frame_new(NULL);
  gtk_container_add(GTK_CONTAINER(expander->frame), expander->body_evb);
 
  gtk_box_pack_start(GTK_BOX(expander), expander->header_evb, TRUE, FALSE, 0);
  gtk_box_pack_start(GTK_BOX(expander), expander->frame, TRUE, FALSE, 0);
 
  return GTK_WIDGET(expander);
}
 
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