/* 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 * * pikadrawabletreeview.c * Copyright (C) 2001-2009 Michael Natterer * * 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 . */ #include "config.h" #include #include #include "libpikawidgets/pikawidgets.h" #include "widgets-types.h" #include "core/pika.h" #include "core/pikacontext.h" #include "core/pikadrawable.h" #include "core/pikadrawable-edit.h" #include "core/pikafilloptions.h" #include "core/pikaimage.h" #include "core/pikaimage-undo.h" #include "core/pikapattern.h" #include "pikacontainerview.h" #include "pikadnd.h" #include "pikadrawabletreeview.h" #include "pika-intl.h" static void pika_drawable_tree_view_view_iface_init (PikaContainerViewInterface *iface); static void pika_drawable_tree_view_constructed (GObject *object); static gboolean pika_drawable_tree_view_select_items (PikaContainerView *view, GList *items, GList *paths); static gboolean pika_drawable_tree_view_drop_possible(PikaContainerTreeView *view, PikaDndType src_type, GList *src_viewables, PikaViewable *dest_viewable, GtkTreePath *drop_path, GtkTreeViewDropPosition drop_pos, GtkTreeViewDropPosition *return_drop_pos, GdkDragAction *return_drag_action); static void pika_drawable_tree_view_drop_viewables (PikaContainerTreeView *view, GList *src_viewables, PikaViewable *dest_viewable, GtkTreeViewDropPosition drop_pos); static void pika_drawable_tree_view_drop_color (PikaContainerTreeView *view, const PikaRGB *color, PikaViewable *dest_viewable, GtkTreeViewDropPosition drop_pos); static void pika_drawable_tree_view_set_image (PikaItemTreeView *view, PikaImage *image); static void pika_drawable_tree_view_floating_selection_changed (PikaImage *image, PikaDrawableTreeView *view); static void pika_drawable_tree_view_new_pattern_dropped (GtkWidget *widget, gint x, gint y, PikaViewable *viewable, gpointer data); static void pika_drawable_tree_view_new_color_dropped (GtkWidget *widget, gint x, gint y, const PikaRGB *color, gpointer data); G_DEFINE_TYPE_WITH_CODE (PikaDrawableTreeView, pika_drawable_tree_view, PIKA_TYPE_ITEM_TREE_VIEW, G_IMPLEMENT_INTERFACE (PIKA_TYPE_CONTAINER_VIEW, pika_drawable_tree_view_view_iface_init)) #define parent_class pika_drawable_tree_view_parent_class static PikaContainerViewInterface *parent_view_iface = NULL; static void pika_drawable_tree_view_class_init (PikaDrawableTreeViewClass *klass) { GObjectClass *object_class; PikaContainerTreeViewClass *tree_view_class; PikaItemTreeViewClass *item_view_class; object_class = G_OBJECT_CLASS (klass); tree_view_class = PIKA_CONTAINER_TREE_VIEW_CLASS (klass); item_view_class = PIKA_ITEM_TREE_VIEW_CLASS (klass); object_class->constructed = pika_drawable_tree_view_constructed; tree_view_class->drop_possible = pika_drawable_tree_view_drop_possible; tree_view_class->drop_viewables = pika_drawable_tree_view_drop_viewables; tree_view_class->drop_color = pika_drawable_tree_view_drop_color; item_view_class->set_image = pika_drawable_tree_view_set_image; item_view_class->lock_content_icon_name = PIKA_ICON_LOCK_CONTENT; item_view_class->lock_content_tooltip = _("Lock pixels"); item_view_class->lock_position_icon_name = PIKA_ICON_LOCK_POSITION; item_view_class->lock_position_tooltip = _("Lock position and size"); item_view_class->lock_visibility_icon_name = PIKA_ICON_LOCK_VISIBILITY; item_view_class->lock_visibility_tooltip = _("Lock visibility"); } static void pika_drawable_tree_view_view_iface_init (PikaContainerViewInterface *iface) { parent_view_iface = g_type_interface_peek_parent (iface); iface->select_items = pika_drawable_tree_view_select_items; } static void pika_drawable_tree_view_init (PikaDrawableTreeView *view) { } static void pika_drawable_tree_view_constructed (GObject *object) { PikaContainerTreeView *tree_view = PIKA_CONTAINER_TREE_VIEW (object); PikaItemTreeView *item_view = PIKA_ITEM_TREE_VIEW (object); G_OBJECT_CLASS (parent_class)->constructed (object); pika_dnd_viewable_dest_add (pika_item_tree_view_get_new_button (item_view), PIKA_TYPE_PATTERN, pika_drawable_tree_view_new_pattern_dropped, item_view); pika_dnd_color_dest_add (pika_item_tree_view_get_new_button (item_view), pika_drawable_tree_view_new_color_dropped, item_view); pika_dnd_color_dest_add (GTK_WIDGET (tree_view->view), NULL, tree_view); pika_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), PIKA_TYPE_PATTERN, NULL, tree_view); } /* PikaContainerView methods */ static gboolean pika_drawable_tree_view_select_items (PikaContainerView *view, GList *items, GList *paths) { PikaItemTreeView *item_view = PIKA_ITEM_TREE_VIEW (view); PikaImage *image = pika_item_tree_view_get_image (item_view); gboolean success = TRUE; if (image) { PikaLayer *floating_sel = pika_image_get_floating_selection (image); success = (items == NULL || floating_sel == NULL || (g_list_length (items) == 1 && items->data == PIKA_VIEWABLE (floating_sel))); if (! success) { Pika *pika = image->pika; PikaContext *context = pika_get_user_context (pika); PikaDisplay *display = pika_context_get_display (context); pika_message_literal (pika, G_OBJECT (display), PIKA_MESSAGE_WARNING, _("Cannot select items while a floating " "selection is active.")); } } if (success) success = parent_view_iface->select_items (view, items, paths); return success; } /* PikaContainerTreeView methods */ static gboolean pika_drawable_tree_view_drop_possible (PikaContainerTreeView *tree_view, PikaDndType src_type, GList *src_viewables, PikaViewable *dest_viewable, GtkTreePath *drop_path, GtkTreeViewDropPosition drop_pos, GtkTreeViewDropPosition *return_drop_pos, GdkDragAction *return_drag_action) { if (PIKA_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_possible (tree_view, src_type, src_viewables, dest_viewable, drop_path, drop_pos, return_drop_pos, return_drag_action)) { if (src_type == PIKA_DND_TYPE_COLOR || src_type == PIKA_DND_TYPE_PATTERN) { if (! dest_viewable || pika_item_is_content_locked (PIKA_ITEM (dest_viewable), NULL) || pika_viewable_get_children (PIKA_VIEWABLE (dest_viewable))) return FALSE; if (return_drop_pos) { *return_drop_pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER; } } return TRUE; } return FALSE; } static void pika_drawable_tree_view_drop_viewables (PikaContainerTreeView *view, GList *src_viewables, PikaViewable *dest_viewable, GtkTreeViewDropPosition drop_pos) { GList *iter; for (iter = src_viewables; iter; iter = iter->next) { PikaViewable *src_viewable = iter->data; if (dest_viewable && PIKA_IS_PATTERN (src_viewable)) { PikaImage *image = pika_item_get_image (PIKA_ITEM (dest_viewable)); PikaFillOptions *options = pika_fill_options_new (image->pika, NULL, FALSE); pika_fill_options_set_style (options, PIKA_FILL_STYLE_PATTERN); pika_context_set_pattern (PIKA_CONTEXT (options), PIKA_PATTERN (src_viewable)); pika_drawable_edit_fill (PIKA_DRAWABLE (dest_viewable), options, C_("undo-type", "Drop pattern to layer")); g_object_unref (options); pika_image_flush (image); return; } } PIKA_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_viewables (view, src_viewables, dest_viewable, drop_pos); } static void pika_drawable_tree_view_drop_color (PikaContainerTreeView *view, const PikaRGB *color, PikaViewable *dest_viewable, GtkTreeViewDropPosition drop_pos) { if (dest_viewable) { PikaImage *image = pika_item_get_image (PIKA_ITEM (dest_viewable)); PikaFillOptions *options = pika_fill_options_new (image->pika, NULL, FALSE); pika_fill_options_set_style (options, PIKA_FILL_STYLE_FG_COLOR); pika_context_set_foreground (PIKA_CONTEXT (options), color); pika_drawable_edit_fill (PIKA_DRAWABLE (dest_viewable), options, C_("undo-type", "Drop color to layer")); g_object_unref (options); pika_image_flush (image); } } /* PikaItemTreeView methods */ static void pika_drawable_tree_view_set_image (PikaItemTreeView *view, PikaImage *image) { if (pika_item_tree_view_get_image (view)) g_signal_handlers_disconnect_by_func (pika_item_tree_view_get_image (view), pika_drawable_tree_view_floating_selection_changed, view); PIKA_ITEM_TREE_VIEW_CLASS (parent_class)->set_image (view, image); if (pika_item_tree_view_get_image (view)) g_signal_connect (pika_item_tree_view_get_image (view), "floating-selection-changed", G_CALLBACK (pika_drawable_tree_view_floating_selection_changed), view); } /* callbacks */ static void pika_drawable_tree_view_floating_selection_changed (PikaImage *image, PikaDrawableTreeView *view) { GList *items; items = PIKA_ITEM_TREE_VIEW_GET_CLASS (view)->get_selected_items (image); items = g_list_copy (items); /* update button states */ pika_container_view_select_items (PIKA_CONTAINER_VIEW (view), items); g_list_free (items); } static void pika_drawable_tree_view_new_dropped (PikaItemTreeView *view, PikaFillOptions *options, const gchar *undo_desc) { PikaImage *image = pika_item_tree_view_get_image (view); PikaItem *item; pika_image_undo_group_start (image, PIKA_UNDO_GROUP_EDIT_PASTE, _("New Layer")); item = PIKA_ITEM_TREE_VIEW_GET_CLASS (view)->new_item (image); if (item) pika_drawable_edit_fill (PIKA_DRAWABLE (item), options, undo_desc); pika_image_undo_group_end (image); pika_image_flush (image); } static void pika_drawable_tree_view_new_pattern_dropped (GtkWidget *widget, gint x, gint y, PikaViewable *viewable, gpointer data) { PikaItemTreeView *view = PIKA_ITEM_TREE_VIEW (data); PikaImage *image = pika_item_tree_view_get_image (view); PikaFillOptions *options = pika_fill_options_new (image->pika, NULL, FALSE); pika_fill_options_set_style (options, PIKA_FILL_STYLE_PATTERN); pika_context_set_pattern (PIKA_CONTEXT (options), PIKA_PATTERN (viewable)); pika_drawable_tree_view_new_dropped (view, options, C_("undo-type", "Drop pattern to layer")); g_object_unref (options); } static void pika_drawable_tree_view_new_color_dropped (GtkWidget *widget, gint x, gint y, const PikaRGB *color, gpointer data) { PikaItemTreeView *view = PIKA_ITEM_TREE_VIEW (data); PikaImage *image = pika_item_tree_view_get_image (view); PikaFillOptions *options = pika_fill_options_new (image->pika, NULL, FALSE); pika_fill_options_set_style (options, PIKA_FILL_STYLE_FG_COLOR); pika_context_set_foreground (PIKA_CONTEXT (options), color); pika_drawable_tree_view_new_dropped (view, options, C_("undo-type", "Drop color to layer")); g_object_unref (options); }