561 lines
20 KiB
C
561 lines
20 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpcontainerlistview.c
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* Copyright (C) 2025 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 "libgimpwidgets/gimpwidgets.h"
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#include "widgets-types.h"
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#include "core/gimpcontainer.h"
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#include "core/gimpcontext.h"
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#include "core/gimpviewable.h"
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#include "gimpcontainerlistview.h"
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#include "gimpcontainerview.h"
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#include "gimprow.h"
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#include "gimprow-utils.h"
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#include "gimpviewrenderer.h"
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#include "gimp-intl.h"
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typedef struct _GimpContainerListViewPrivate GimpContainerListViewPrivate;
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struct _GimpContainerListViewPrivate
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{
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GtkListBox *view;
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gboolean reordering;
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GList *reordering_selected;
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};
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#define GET_PRIVATE(obj) \
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((GimpContainerListViewPrivate *) gimp_container_list_view_get_instance_private ((GimpContainerListView *) obj))
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static void gimp_container_list_view_view_iface_init (GimpContainerViewInterface *iface);
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static void gimp_container_list_view_constructed (GObject *object);
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static void gimp_container_list_view_finalize (GObject *object);
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static gboolean gimp_container_list_view_popup_menu (GtkWidget *widget);
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static void gimp_container_list_view_set_container (GimpContainerView *view,
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GimpContainer *container);
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static void gimp_container_list_view_set_context (GimpContainerView *view,
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GimpContext *context);
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static void gimp_container_list_view_set_selection_mode(GimpContainerView *view,
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GtkSelectionMode mode);
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static void gimp_container_list_view_set_view_size (GimpContainerView *view);
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static gboolean gimp_container_list_view_set_selected (GimpContainerView *view,
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GList *items);
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static gint gimp_container_list_view_get_selected (GimpContainerView *view,
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GList **items);
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static void gimp_container_list_view_reorder (GimpContainer *container,
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GimpObject *object,
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gint old_index,
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gint new_index,
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GimpContainerView *view);
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static void gimp_container_list_view_before_items_changed
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(GimpContainer *container,
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guint position,
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guint removed,
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guint added,
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GimpContainerView *view);
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static void gimp_container_list_view_after_items_changed
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(GimpContainer *container,
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guint position,
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guint removed,
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guint added,
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GimpContainerView *view);
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static void gimp_container_list_view_selected_rows_changed
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(GtkListBox *box,
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GimpContainerListView *list_view);
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static void gimp_container_list_view_row_activated (GtkListBox *box,
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GimpRow *row,
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GimpContainerListView *list_view);
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static void gimp_container_list_view_monitor_changed (GimpContainerListView *view);
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G_DEFINE_TYPE_WITH_CODE (GimpContainerListView,
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gimp_container_list_view,
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GIMP_TYPE_CONTAINER_BOX,
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G_ADD_PRIVATE (GimpContainerListView)
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G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONTAINER_VIEW,
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gimp_container_list_view_view_iface_init))
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#define parent_class gimp_container_list_view_parent_class
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static GimpContainerViewInterface *parent_view_iface = NULL;
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static void
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gimp_container_list_view_class_init (GimpContainerListViewClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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object_class->constructed = gimp_container_list_view_constructed;
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object_class->finalize = gimp_container_list_view_finalize;
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widget_class->popup_menu = gimp_container_list_view_popup_menu;
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}
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static void
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gimp_container_list_view_view_iface_init (GimpContainerViewInterface *iface)
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{
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parent_view_iface = g_type_interface_peek_parent (iface);
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if (! parent_view_iface)
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parent_view_iface = g_type_default_interface_peek (GIMP_TYPE_CONTAINER_VIEW);
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iface->set_container = gimp_container_list_view_set_container;
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iface->set_context = gimp_container_list_view_set_context;
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iface->set_selection_mode = gimp_container_list_view_set_selection_mode;
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iface->set_view_size = gimp_container_list_view_set_view_size;
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iface->set_selected = gimp_container_list_view_set_selected;
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iface->get_selected = gimp_container_list_view_get_selected;
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iface->use_list_model = TRUE;
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}
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static void
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gimp_container_list_view_init (GimpContainerListView *list_view)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (list_view);
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GimpContainerBox *box = GIMP_CONTAINER_BOX (list_view);
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priv->view = GTK_LIST_BOX (gtk_list_box_new ());
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gtk_list_box_set_activate_on_single_click (priv->view, FALSE);
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gtk_container_add (GTK_CONTAINER (box->scrolled_win),
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GTK_WIDGET (priv->view));
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gtk_widget_show (GTK_WIDGET (priv->view));
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g_signal_connect (priv->view, "selected-rows-changed",
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G_CALLBACK (gimp_container_list_view_selected_rows_changed),
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list_view);
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g_signal_connect (priv->view, "row-activated",
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G_CALLBACK (gimp_container_list_view_row_activated),
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list_view);
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gimp_container_view_set_dnd_widget (GIMP_CONTAINER_VIEW (list_view),
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GTK_WIDGET (priv->view));
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gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (box->scrolled_win),
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GTK_SHADOW_IN);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (box->scrolled_win),
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GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
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gimp_widget_track_monitor (GTK_WIDGET (list_view),
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G_CALLBACK (gimp_container_list_view_monitor_changed),
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NULL, NULL);
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}
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static void
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gimp_container_list_view_constructed (GObject *object)
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{
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G_OBJECT_CLASS (parent_class)->constructed (object);
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}
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static void
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gimp_container_list_view_finalize (GObject *object)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (object);
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g_list_free_full (priv->reordering_selected, g_object_unref);
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priv->reordering_selected = NULL;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
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gimp_container_list_view_popup_menu (GtkWidget *widget)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (widget);
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GList *rows;
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GtkWidget *row;
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GtkAllocation allocation;
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rows = gtk_list_box_get_selected_rows (priv->view);
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if (g_list_length (rows) != 1)
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{
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g_list_free (rows);
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return FALSE;
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}
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row = rows->data;
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g_list_free (rows);
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gtk_widget_get_allocation (row, &allocation);
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return gimp_editor_popup_menu_at_rect (GIMP_EDITOR (widget),
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gtk_widget_get_window (row),
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(GdkRectangle *) &allocation,
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GDK_GRAVITY_CENTER,
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GDK_GRAVITY_NORTH_WEST,
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NULL);
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}
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GtkWidget *
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gimp_container_list_view_new (GimpContainer *container,
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GimpContext *context,
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gint view_size,
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gint view_border_width)
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{
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g_return_val_if_fail (container == NULL || GIMP_IS_CONTAINER (container),
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NULL);
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g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (view_size > 0 &&
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view_size <= GIMP_VIEWABLE_MAX_PREVIEW_SIZE, NULL);
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g_return_val_if_fail (view_border_width >= 0 &&
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view_border_width <= GIMP_VIEW_MAX_BORDER_WIDTH,
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NULL);
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return g_object_new (GIMP_TYPE_CONTAINER_LIST_VIEW,
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"view-size", view_size,
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"view-border-width", view_border_width,
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"context", context,
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"container", container,
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NULL);
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}
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void
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gimp_container_list_view_set_search_entry (GimpContainerListView *list_view,
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GtkSearchEntry *entry)
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{
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g_return_if_fail (GIMP_IS_CONTAINER_LIST_VIEW (list_view));
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g_return_if_fail (GTK_IS_SEARCH_ENTRY (entry));
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g_printerr ("implement gimp_container_list_view_set_search_entry()\n");
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}
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/* GimpContainerView methods */
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static void
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gimp_container_list_view_set_container (GimpContainerView *view,
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GimpContainer *container)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
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GimpContainer *old_container;
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old_container = gimp_container_view_get_container (view);
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if (old_container)
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{
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g_signal_handlers_disconnect_by_func (old_container,
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gimp_container_list_view_reorder,
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view);
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g_signal_handlers_disconnect_by_func (old_container,
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gimp_container_list_view_before_items_changed,
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view);
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g_signal_handlers_disconnect_by_func (old_container,
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gimp_container_list_view_after_items_changed,
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view);
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#if 0
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if (! container)
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{
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if (gimp_dnd_viewable_list_source_remove (GTK_WIDGET (list_view->view),
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gimp_container_get_child_type (old_container)))
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{
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gtk_drag_source_unset (GTK_WIDGET (list_view->view));
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}
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}
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#endif
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gtk_list_box_bind_model (priv->view, NULL, NULL, NULL, NULL);
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}
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else if (container)
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{
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#if 0
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if (gimp_dnd_drag_source_set_by_type (GTK_WIDGET (list_view->view),
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GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
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gimp_container_get_child_type (container),
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GDK_ACTION_COPY))
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{
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gimp_dnd_viewable_list_source_add (GTK_WIDGET (list_view->view),
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gimp_container_get_child_type (container),
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gimp_container_list_view_drag_viewable_list,
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list_view);
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}
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#endif
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}
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parent_view_iface->set_container (view, container);
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if (container)
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{
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g_signal_connect (container, "reorder",
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G_CALLBACK (gimp_container_list_view_reorder),
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view);
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g_signal_connect (container, "items-changed",
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G_CALLBACK (gimp_container_list_view_before_items_changed),
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view);
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gtk_list_box_bind_model (priv->view, G_LIST_MODEL (container),
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gimp_row_create_for_container_view,
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view, NULL);
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g_signal_connect (container, "items-changed",
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G_CALLBACK (gimp_container_list_view_after_items_changed),
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view);
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}
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}
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static void
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gimp_container_list_view_set_context (GimpContainerView *view,
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GimpContext *context)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
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GList *children;
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GList *child;
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parent_view_iface->set_context (view, context);
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children = gtk_container_get_children (GTK_CONTAINER (priv->view));
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for (child = children; child; child = g_list_next (child))
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{
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gimp_row_set_context (child->data, context);
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}
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g_list_free (children);
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}
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static void
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gimp_container_list_view_set_selection_mode (GimpContainerView *view,
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GtkSelectionMode mode)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
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parent_view_iface->set_selection_mode (view, mode);
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gtk_list_box_set_selection_mode (priv->view, mode);
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}
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static void
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gimp_container_list_view_set_view_size (GimpContainerView *view)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
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GList *children;
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GList *child;
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gint view_size;
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gint border_width;
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view_size = gimp_container_view_get_view_size (view, &border_width);
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children = gtk_container_get_children (GTK_CONTAINER (priv->view));
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for (child = children; child; child = g_list_next (child))
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{
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gimp_row_set_view_size (child->data, view_size, border_width);
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}
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g_list_free (children);
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}
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static gboolean
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gimp_container_list_view_set_selected (GimpContainerView *view,
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GList *items)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
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GtkAdjustment *adjustment;
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GtkAllocation allocation;
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GList *children;
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GList *child;
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gdouble scroll_offset;
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gint top_selected = G_MAXINT;
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gint bottom_selected = 0;
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adjustment = gtk_list_box_get_adjustment (priv->view);
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scroll_offset = gtk_adjustment_get_value (adjustment);
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g_signal_handlers_block_by_func (priv->view,
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gimp_container_list_view_selected_rows_changed,
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view);
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gtk_list_box_unselect_all (priv->view);
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adjustment = gtk_list_box_get_adjustment (priv->view);
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children = gtk_container_get_children (GTK_CONTAINER (priv->view));
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for (child = children; child; child = g_list_next (child))
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{
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GimpViewable *viewable = gimp_row_get_viewable (child->data);
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if (g_list_find (items, viewable))
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{
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gtk_list_box_select_row (priv->view, child->data);
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gtk_widget_get_allocation (child->data, &allocation);
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top_selected = MIN (top_selected, allocation.y);
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bottom_selected = MAX (bottom_selected, allocation.y + allocation.height);
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}
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}
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g_list_free (children);
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g_signal_handlers_unblock_by_func (priv->view,
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gimp_container_list_view_selected_rows_changed,
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view);
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gtk_widget_get_allocation (gtk_widget_get_parent (GTK_WIDGET (priv->view)),
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&allocation);
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if (top_selected < scroll_offset)
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{
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gtk_adjustment_set_value (adjustment, top_selected);
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}
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else if (bottom_selected > scroll_offset + allocation.height)
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{
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gtk_adjustment_set_value (adjustment, bottom_selected - allocation.height);
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}
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_gimp_container_view_selection_changed (view);
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return TRUE;
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}
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static gint
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gimp_container_list_view_get_selected (GimpContainerView *view,
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GList **items)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
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GList *rows;
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gint n_selected;
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rows = gtk_list_box_get_selected_rows (priv->view);
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n_selected = g_list_length (rows);
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if (items)
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{
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GList *row;
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for (row = rows; row; row = g_list_next (row))
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{
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*items = g_list_prepend (*items, gimp_row_get_viewable (row->data));
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}
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*items = g_list_reverse (*items);
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}
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g_list_free (rows);
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return n_selected;
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}
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static void
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gimp_container_list_view_reorder (GimpContainer *container,
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GimpObject *object,
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gint old_index,
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gint new_index,
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GimpContainerView *view)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
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priv->reordering = TRUE;
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}
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static void
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gimp_container_list_view_before_items_changed (GimpContainer *container,
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guint position,
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guint removed,
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guint added,
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GimpContainerView *view)
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{
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GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
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if (priv->reordering)
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{
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gimp_container_view_get_selected (view, &priv->reordering_selected);
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g_list_foreach (priv->reordering_selected, (GFunc) g_object_ref, NULL);
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}
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}
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static void
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gimp_container_list_view_after_items_changed (GimpContainer *container,
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guint position,
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guint removed,
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guint added,
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GimpContainerView *view)
|
|
{
|
|
GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
|
|
|
|
if (priv->reordering)
|
|
{
|
|
gimp_container_view_set_selected (view, priv->reordering_selected);
|
|
|
|
g_list_free_full (priv->reordering_selected, g_object_unref);
|
|
priv->reordering_selected = NULL;
|
|
|
|
priv->reordering = FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_container_list_view_selected_rows_changed (GtkListBox *box,
|
|
GimpContainerListView *list_view)
|
|
{
|
|
_gimp_container_view_selection_changed (GIMP_CONTAINER_VIEW (list_view));
|
|
}
|
|
|
|
static void
|
|
gimp_container_list_view_row_activated (GtkListBox *box,
|
|
GimpRow *row,
|
|
GimpContainerListView *list_view)
|
|
{
|
|
_gimp_container_view_item_activated (GIMP_CONTAINER_VIEW (list_view),
|
|
gimp_row_get_viewable (row));
|
|
}
|
|
|
|
static void
|
|
gimp_container_list_view_monitor_changed (GimpContainerListView *view)
|
|
{
|
|
GimpContainerListViewPrivate *priv = GET_PRIVATE (view);
|
|
GList *children;
|
|
GList *child;
|
|
|
|
children = gtk_container_get_children (GTK_CONTAINER (priv->view));
|
|
|
|
for (child = children; child; child = g_list_next (child))
|
|
{
|
|
gimp_row_monitor_changed (child->data);
|
|
}
|
|
|
|
g_list_free (children);
|
|
}
|