resize_handle.h

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/*
    This file is part of Ansel,
    Copyright (C) 2026 Aurélien PIERRE.
 
    Ansel 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.
 
    Ansel 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 Ansel.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#ifndef DT_WIDGETS_RESIZE_HANDLE_H
#define DT_WIDGETS_RESIZE_HANDLE_H
 
#include <gtk/gtk.h>
 
G_BEGIN_DECLS
 
/* The drag grip that resizes a panel, the histogram scope, the filmstrip.
 *
 * It lived in bauhaus.c, which is the slider/combobox toolkit and has nothing to do with
 * dragging a panel edge. Nothing here touches a dt_bauhaus_widget_t; it is a GtkEventBox
 * that converts a pointer drag into a size, and hands the size to its owner.
 */
 
typedef int (*dtgtk_resize_handle_get_size_f)(gpointer user_data);
 
typedef int (*dtgtk_resize_handle_resize_f)(int requested_size, gboolean finished, gpointer user_data);
 
GtkWidget *dtgtk_resize_handle_new(GtkOrientation orientation, gboolean invert, const char *tooltip,
                                   dtgtk_resize_handle_get_size_f get_size,
                                   dtgtk_resize_handle_resize_f resize, gpointer user_data);
 
G_END_DECLS
 
#endif // DT_WIDGETS_RESIZE_HANDLE_H
 
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