225 lines
7.5 KiB
C
225 lines
7.5 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikacontainerbox.c
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* Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "core/pikacontainer.h"
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#include "core/pikacontext.h"
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#include "pikacontainerbox.h"
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#include "pikacontainerview.h"
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#include "pikadnd.h"
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#include "pikadocked.h"
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#include "pikapropwidgets.h"
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#include "pikaview.h"
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#include "pikaviewrenderer.h"
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static void pika_container_box_view_iface_init (PikaContainerViewInterface *iface);
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static void pika_container_box_docked_iface_init (PikaDockedInterface *iface);
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static void pika_container_box_constructed (GObject *object);
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static GtkWidget * pika_container_box_get_preview (PikaDocked *docked,
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PikaContext *context,
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GtkIconSize size);
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static void pika_container_box_set_context (PikaDocked *docked,
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PikaContext *context);
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G_DEFINE_TYPE_WITH_CODE (PikaContainerBox, pika_container_box,
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PIKA_TYPE_EDITOR,
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_CONTAINER_VIEW,
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pika_container_box_view_iface_init)
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_DOCKED,
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pika_container_box_docked_iface_init))
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#define parent_class pika_container_box_parent_class
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static void
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pika_container_box_class_init (PikaContainerBoxClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->constructed = pika_container_box_constructed;
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object_class->set_property = pika_container_view_set_property;
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object_class->get_property = pika_container_view_get_property;
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pika_container_view_install_properties (object_class);
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}
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static void
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pika_container_box_init (PikaContainerBox *box)
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{
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GtkWidget *sb;
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box->scrolled_win = gtk_scrolled_window_new (NULL, NULL);
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gtk_box_pack_start (GTK_BOX (box), box->scrolled_win, TRUE, TRUE, 0);
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gtk_widget_show (box->scrolled_win);
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sb = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (box->scrolled_win));
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gtk_widget_set_can_focus (sb, FALSE);
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}
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static void
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pika_container_box_view_iface_init (PikaContainerViewInterface *iface)
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{
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}
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static void
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pika_container_box_docked_iface_init (PikaDockedInterface *iface)
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{
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iface->get_preview = pika_container_box_get_preview;
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iface->set_context = pika_container_box_set_context;
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}
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static void
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pika_container_box_constructed (GObject *object)
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{
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PikaContainerBox *box = PIKA_CONTAINER_BOX (object);
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/* This is evil: the hash table of "insert_data" is created on
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* demand when PikaContainerView API is used, using a
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* value_free_func that is set in the interface_init functions of
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* its implementors. Therefore, no PikaContainerView API must be
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* called from any init() function, because the interface_init()
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* function of a subclass that sets the right value_free_func might
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* not have been called yet, leaving the insert_data hash table
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* without memory management.
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*
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* Call PikaContainerView API from GObject::constructed() instead,
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* which runs after everything is set up correctly.
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*/
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pika_container_view_set_dnd_widget (PIKA_CONTAINER_VIEW (box),
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box->scrolled_win);
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G_OBJECT_CLASS (parent_class)->constructed (object);
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}
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void
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pika_container_box_set_size_request (PikaContainerBox *box,
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gint width,
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gint height)
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{
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PikaContainerView *view;
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GtkScrolledWindowClass *sw_class;
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GtkStyleContext *sw_style;
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GtkWidget *sb;
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GtkRequisition req;
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GtkBorder border;
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gint view_size;
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gint scrollbar_width;
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gint border_x;
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gint border_y;
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g_return_if_fail (PIKA_IS_CONTAINER_BOX (box));
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view = PIKA_CONTAINER_VIEW (box);
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view_size = pika_container_view_get_view_size (view, NULL);
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g_return_if_fail (width <= 0 || width >= view_size);
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g_return_if_fail (height <= 0 || height >= view_size);
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sw_class = GTK_SCROLLED_WINDOW_GET_CLASS (box->scrolled_win);
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if (sw_class->scrollbar_spacing >= 0)
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scrollbar_width = sw_class->scrollbar_spacing;
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else
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gtk_widget_style_get (GTK_WIDGET (box->scrolled_win),
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"scrollbar-spacing", &scrollbar_width,
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NULL);
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sb = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (box->scrolled_win));
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gtk_widget_get_preferred_size (sb, &req, NULL);
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scrollbar_width += req.width;
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border_x = border_y = gtk_container_get_border_width (GTK_CONTAINER (box));
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sw_style = gtk_widget_get_style_context (box->scrolled_win);
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gtk_style_context_get_border (sw_style, gtk_widget_get_state_flags (box->scrolled_win), &border);
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border_x += border.left + border.right + scrollbar_width;
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border_y += border.top + border.bottom;
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gtk_widget_set_size_request (box->scrolled_win,
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width > 0 ? width + border_x : -1,
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height > 0 ? height + border_y : -1);
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}
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static void
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pika_container_box_set_context (PikaDocked *docked,
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PikaContext *context)
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{
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pika_container_view_set_context (PIKA_CONTAINER_VIEW (docked), context);
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}
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static GtkWidget *
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pika_container_box_get_preview (PikaDocked *docked,
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PikaContext *context,
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GtkIconSize size)
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{
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PikaContainerView *view = PIKA_CONTAINER_VIEW (docked);
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PikaContainer *container;
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GtkWidget *preview;
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gint width;
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gint height;
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gint border_width = 1;
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const gchar *prop_name;
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container = pika_container_view_get_container (view);
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g_return_val_if_fail (container != NULL, NULL);
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gtk_icon_size_lookup (size, &width, &height);
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prop_name = pika_context_type_to_prop_name (pika_container_get_children_type (container));
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preview = pika_prop_view_new (G_OBJECT (context), prop_name,
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context, height);
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PIKA_VIEW (preview)->renderer->size = -1;
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pika_container_view_get_view_size (view, &border_width);
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border_width = MIN (1, border_width);
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pika_view_renderer_set_size_full (PIKA_VIEW (preview)->renderer,
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width, height, border_width);
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return preview;
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}
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