PIKApp/app/widgets/pikabufferview.c

313 lines
12 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pikabufferview.c
* Copyright (C) 2001-2004 Michael Natterer <mitch@gimp.org>
*
* 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 3 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "core/pika.h"
#include "core/pikabuffer.h"
#include "core/pikacontainer.h"
#include "core/pikacontext.h"
#include "core/pikaimage.h"
#include "pikacontainertreeview.h"
#include "pikacontainerview.h"
#include "pikabufferview.h"
#include "pikadnd.h"
#include "pikadocked.h"
#include "pikaeditor.h"
#include "pikahelp-ids.h"
#include "pikaview.h"
#include "pikaviewrendererbuffer.h"
#include "pikauimanager.h"
#include "pikawidgets-utils.h"
#include "pika-intl.h"
static void pika_buffer_view_docked_iface_init (PikaDockedInterface *iface);
static void pika_buffer_view_set_context (PikaDocked *docked,
PikaContext *context);
static void pika_buffer_view_activate_item (PikaContainerEditor *editor,
PikaViewable *viewable);
static void pika_buffer_view_clipboard_changed (Pika *pika,
PikaBufferView *buffer_view);
static void pika_buffer_view_view_notify (PikaContainerView *view,
GParamSpec *pspec,
PikaBufferView *buffer_view);
G_DEFINE_TYPE_WITH_CODE (PikaBufferView, pika_buffer_view,
PIKA_TYPE_CONTAINER_EDITOR,
G_IMPLEMENT_INTERFACE (PIKA_TYPE_DOCKED,
pika_buffer_view_docked_iface_init))
#define parent_class pika_buffer_view_parent_class
static PikaDockedInterface *parent_docked_iface = NULL;
static void
pika_buffer_view_class_init (PikaBufferViewClass *klass)
{
PikaContainerEditorClass *editor_class = PIKA_CONTAINER_EDITOR_CLASS (klass);
editor_class->activate_item = pika_buffer_view_activate_item;
}
static void
pika_buffer_view_docked_iface_init (PikaDockedInterface *iface)
{
parent_docked_iface = g_type_interface_peek_parent (iface);
if (! parent_docked_iface)
parent_docked_iface = g_type_default_interface_peek (PIKA_TYPE_DOCKED);
iface->set_context = pika_buffer_view_set_context;
}
static void
pika_buffer_view_init (PikaBufferView *view)
{
}
static void
pika_buffer_view_set_context (PikaDocked *docked,
PikaContext *context)
{
PikaBufferView *view = PIKA_BUFFER_VIEW (docked);
parent_docked_iface->set_context (docked, context);
pika_view_renderer_set_context (PIKA_VIEW (view->clipboard_view)->renderer,
context);
}
/* public functions */
GtkWidget *
pika_buffer_view_new (PikaViewType view_type,
PikaContainer *container,
PikaContext *context,
gint view_size,
gint view_border_width,
PikaMenuFactory *menu_factory)
{
PikaBufferView *buffer_view;
PikaContainerEditor *editor;
GtkWidget *frame;
GtkWidget *hbox;
g_return_val_if_fail (PIKA_IS_CONTAINER (container), NULL);
g_return_val_if_fail (PIKA_IS_CONTEXT (context), NULL);
g_return_val_if_fail (view_size > 0 &&
view_size <= PIKA_VIEWABLE_MAX_PREVIEW_SIZE, FALSE);
g_return_val_if_fail (view_border_width >= 0 &&
view_border_width <= PIKA_VIEW_MAX_BORDER_WIDTH,
FALSE);
buffer_view = g_object_new (PIKA_TYPE_BUFFER_VIEW,
"view-type", view_type,
"container", container,
"context", context,
"view-size", view_size,
"view-border-width", view_border_width,
"menu-factory", menu_factory,
"menu-identifier", "<Buffers>",
"ui-path", "/buffers-popup",
NULL);
editor = PIKA_CONTAINER_EDITOR (buffer_view);
if (PIKA_IS_CONTAINER_TREE_VIEW (editor->view))
{
PikaContainerTreeView *tree_view;
tree_view = PIKA_CONTAINER_TREE_VIEW (editor->view);
pika_container_tree_view_connect_name_edited (tree_view,
G_CALLBACK (pika_container_tree_view_name_edited),
tree_view);
}
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (editor), frame, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (editor), frame, 0);
gtk_widget_show (frame);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 2);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
/* FIXME: enable preview of a clipboard image, not just buffer */
buffer_view->clipboard_view =
pika_view_new_full_by_types (NULL,
PIKA_TYPE_VIEW,
PIKA_TYPE_BUFFER,
view_size, view_size, view_border_width,
FALSE, FALSE, TRUE);
gtk_box_pack_start (GTK_BOX (hbox), buffer_view->clipboard_view,
FALSE, FALSE, 0);
gtk_widget_show (buffer_view->clipboard_view);
g_signal_connect_object (editor->view, "notify::view-size",
G_CALLBACK (pika_buffer_view_view_notify),
buffer_view, 0);
g_signal_connect_object (editor->view, "notify::view-border-width",
G_CALLBACK (pika_buffer_view_view_notify),
buffer_view, 0);
buffer_view->clipboard_label = gtk_label_new (_("(None)"));
gtk_box_pack_start (GTK_BOX (hbox), buffer_view->clipboard_label,
FALSE, FALSE, 0);
gtk_widget_show (buffer_view->clipboard_label);
g_signal_connect_object (context->pika, "clipboard-changed",
G_CALLBACK (pika_buffer_view_clipboard_changed),
G_OBJECT (buffer_view), 0);
pika_buffer_view_clipboard_changed (context->pika, buffer_view);
buffer_view->paste_button =
pika_editor_add_action_button (PIKA_EDITOR (editor->view), "buffers",
"buffers-paste",
"buffers-paste-in-place",
pika_get_extend_selection_mask (),
NULL);
buffer_view->paste_into_button =
pika_editor_add_action_button (PIKA_EDITOR (editor->view), "buffers",
"buffers-paste-into",
"buffers-paste-into-in-place",
pika_get_extend_selection_mask (),
NULL);
buffer_view->paste_as_new_layer_button =
pika_editor_add_action_button (PIKA_EDITOR (editor->view), "buffers",
"buffers-paste-as-new-layer",
"buffers-paste-as-new-layer-in-place",
pika_get_extend_selection_mask (),
NULL);
buffer_view->paste_as_new_image_button =
pika_editor_add_action_button (PIKA_EDITOR (editor->view), "buffers",
"buffers-paste-as-new-image", NULL);
buffer_view->delete_button =
pika_editor_add_action_button (PIKA_EDITOR (editor->view), "buffers",
"buffers-delete", NULL);
pika_container_view_enable_dnd (editor->view,
GTK_BUTTON (buffer_view->paste_button),
PIKA_TYPE_BUFFER);
pika_container_view_enable_dnd (editor->view,
GTK_BUTTON (buffer_view->paste_into_button),
PIKA_TYPE_BUFFER);
pika_container_view_enable_dnd (editor->view,
GTK_BUTTON (buffer_view->paste_as_new_layer_button),
PIKA_TYPE_BUFFER);
pika_container_view_enable_dnd (editor->view,
GTK_BUTTON (buffer_view->paste_as_new_image_button),
PIKA_TYPE_BUFFER);
pika_container_view_enable_dnd (editor->view,
GTK_BUTTON (buffer_view->delete_button),
PIKA_TYPE_BUFFER);
pika_ui_manager_update (pika_editor_get_ui_manager (PIKA_EDITOR (editor->view)),
editor);
return GTK_WIDGET (buffer_view);
}
/* private functions */
static void
pika_buffer_view_activate_item (PikaContainerEditor *editor,
PikaViewable *viewable)
{
PikaBufferView *view = PIKA_BUFFER_VIEW (editor);
PikaContainer *container;
if (PIKA_CONTAINER_EDITOR_CLASS (parent_class)->activate_item)
PIKA_CONTAINER_EDITOR_CLASS (parent_class)->activate_item (editor, viewable);
container = pika_container_view_get_container (editor->view);
if (viewable && pika_container_have (container, PIKA_OBJECT (viewable)))
{
gtk_button_clicked (GTK_BUTTON (view->paste_button));
}
}
static void
pika_buffer_view_clipboard_changed (Pika *pika,
PikaBufferView *buffer_view)
{
PikaBuffer *buffer = pika_get_clipboard_buffer (pika);
pika_view_set_viewable (PIKA_VIEW (buffer_view->clipboard_view),
PIKA_VIEWABLE (buffer));
if (buffer)
{
gchar *desc = pika_viewable_get_description (PIKA_VIEWABLE (buffer),
NULL);
gtk_label_set_text (GTK_LABEL (buffer_view->clipboard_label), desc);
g_free (desc);
}
else
{
gtk_label_set_text (GTK_LABEL (buffer_view->clipboard_label), _("(None)"));
}
}
static void
pika_buffer_view_view_notify (PikaContainerView *container_view,
GParamSpec *pspec,
PikaBufferView *buffer_view)
{
PikaView *view = PIKA_VIEW (buffer_view->clipboard_view);
gint view_size;
gint view_border_width;
view_size = pika_container_view_get_view_size (container_view,
&view_border_width);
pika_view_renderer_set_size_full (view->renderer,
view_size, view_size, view_border_width);
}