279 lines
10 KiB
C
279 lines
10 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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* pikabrushfactoryview.c
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* Copyright (C) 2001 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 <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 "core/pikabrush.h"
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#include "core/pikabrushgenerated.h"
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#include "core/pikadatafactory.h"
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#include "pikabrushfactoryview.h"
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#include "pikacontainerview.h"
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#include "pikaeditor.h"
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#include "pikamenufactory.h"
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#include "pikaviewrenderer.h"
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#include "pika-intl.h"
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enum
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{
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SPACING_CHANGED,
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LAST_SIGNAL
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};
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static void pika_brush_factory_view_dispose (GObject *object);
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static void pika_brush_factory_view_select_item (PikaContainerEditor *editor,
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PikaViewable *viewable);
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static void pika_brush_factory_view_spacing_changed (PikaBrush *brush,
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PikaBrushFactoryView *view);
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static void pika_brush_factory_view_spacing_update (GtkAdjustment *adjustment,
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PikaBrushFactoryView *view);
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G_DEFINE_TYPE (PikaBrushFactoryView, pika_brush_factory_view,
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PIKA_TYPE_DATA_FACTORY_VIEW)
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#define parent_class pika_brush_factory_view_parent_class
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static guint pika_brush_factory_view_signals[LAST_SIGNAL] = { 0 };
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static void
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pika_brush_factory_view_class_init (PikaBrushFactoryViewClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaContainerEditorClass *editor_class = PIKA_CONTAINER_EDITOR_CLASS (klass);
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object_class->dispose = pika_brush_factory_view_dispose;
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editor_class->select_item = pika_brush_factory_view_select_item;
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/**
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* PikaBrushFactoryView::spacing-changed:
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* @view: the #PikaBrushFactoryView.
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*
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* Emitted when the spacing changed.
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*/
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pika_brush_factory_view_signals[SPACING_CHANGED] =
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g_signal_new ("spacing-changed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaBrushFactoryViewClass, spacing_changed),
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NULL, NULL, NULL,
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G_TYPE_NONE, 0);
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}
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static void
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pika_brush_factory_view_init (PikaBrushFactoryView *view)
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{
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view->spacing_adjustment = gtk_adjustment_new (0.0, 1.0, 5000.0,
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1.0, 10.0, 0.0);
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view->spacing_scale = pika_spin_scale_new (view->spacing_adjustment,
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_("Spacing"), 1);
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pika_spin_scale_set_scale_limits (PIKA_SPIN_SCALE (view->spacing_scale),
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1.0, 200.0);
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pika_help_set_help_data (view->spacing_scale,
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_("Percentage of width of brush"),
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NULL);
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g_signal_connect (view->spacing_adjustment, "value-changed",
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G_CALLBACK (pika_brush_factory_view_spacing_update),
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view);
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}
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static void
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pika_brush_factory_view_dispose (GObject *object)
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{
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PikaBrushFactoryView *view = PIKA_BRUSH_FACTORY_VIEW (object);
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PikaContainerEditor *editor = PIKA_CONTAINER_EDITOR (object);
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if (view->spacing_changed_handler_id)
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{
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PikaDataFactory *factory;
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PikaContainer *container;
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factory = pika_data_factory_view_get_data_factory (PIKA_DATA_FACTORY_VIEW (editor));
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container = pika_data_factory_get_container (factory);
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pika_container_remove_handler (container,
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view->spacing_changed_handler_id);
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view->spacing_changed_handler_id = 0;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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GtkWidget *
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pika_brush_factory_view_new (PikaViewType view_type,
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PikaDataFactory *factory,
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PikaContext *context,
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gboolean change_brush_spacing,
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gint view_size,
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gint view_border_width,
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PikaMenuFactory *menu_factory)
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{
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PikaBrushFactoryView *factory_view;
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PikaContainerEditor *editor;
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g_return_val_if_fail (PIKA_IS_DATA_FACTORY (factory), NULL);
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g_return_val_if_fail (PIKA_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (view_size > 0 &&
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view_size <= PIKA_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 <= PIKA_VIEW_MAX_BORDER_WIDTH,
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NULL);
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g_return_val_if_fail (menu_factory == NULL ||
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PIKA_IS_MENU_FACTORY (menu_factory), NULL);
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factory_view = g_object_new (PIKA_TYPE_BRUSH_FACTORY_VIEW,
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"view-type", view_type,
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"data-factory", factory,
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"context", context,
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"view-size", view_size,
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"view-border-width", view_border_width,
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"menu-factory", menu_factory,
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"menu-identifier", "<Brushes>",
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"ui-path", "/brushes-popup",
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"action-group", "brushes",
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NULL);
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factory_view->change_brush_spacing = change_brush_spacing;
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editor = PIKA_CONTAINER_EDITOR (factory_view);
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pika_editor_add_action_button (PIKA_EDITOR (editor->view),
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"brushes", "brushes-open-as-image",
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NULL);
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gtk_box_pack_end (GTK_BOX (editor->view), factory_view->spacing_scale,
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FALSE, FALSE, 0);
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gtk_widget_show (factory_view->spacing_scale);
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factory_view->spacing_changed_handler_id =
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pika_container_add_handler (pika_data_factory_get_container (factory), "spacing-changed",
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G_CALLBACK (pika_brush_factory_view_spacing_changed),
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factory_view);
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return GTK_WIDGET (factory_view);
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}
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static void
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pika_brush_factory_view_select_item (PikaContainerEditor *editor,
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PikaViewable *viewable)
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{
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PikaBrushFactoryView *view = PIKA_BRUSH_FACTORY_VIEW (editor);
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PikaContainer *container;
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gboolean spacing_sensitive = FALSE;
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if (PIKA_CONTAINER_EDITOR_CLASS (parent_class)->select_item)
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PIKA_CONTAINER_EDITOR_CLASS (parent_class)->select_item (editor, viewable);
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container = pika_container_view_get_container (editor->view);
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if (viewable && pika_container_have (container, PIKA_OBJECT (viewable)))
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{
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PikaBrush *brush = PIKA_BRUSH (viewable);
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spacing_sensitive = TRUE;
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g_signal_handlers_block_by_func (view->spacing_adjustment,
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pika_brush_factory_view_spacing_update,
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view);
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gtk_adjustment_set_value (view->spacing_adjustment,
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pika_brush_get_spacing (brush));
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g_signal_handlers_unblock_by_func (view->spacing_adjustment,
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pika_brush_factory_view_spacing_update,
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view);
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}
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gtk_widget_set_sensitive (view->spacing_scale, spacing_sensitive);
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}
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static void
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pika_brush_factory_view_spacing_changed (PikaBrush *brush,
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PikaBrushFactoryView *view)
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{
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PikaContainerEditor *editor = PIKA_CONTAINER_EDITOR (view);
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PikaContext *context;
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context = pika_container_view_get_context (editor->view);
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if (brush == pika_context_get_brush (context))
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{
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g_signal_handlers_block_by_func (view->spacing_adjustment,
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pika_brush_factory_view_spacing_update,
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view);
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gtk_adjustment_set_value (view->spacing_adjustment,
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pika_brush_get_spacing (brush));
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g_signal_handlers_unblock_by_func (view->spacing_adjustment,
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pika_brush_factory_view_spacing_update,
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view);
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}
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}
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static void
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pika_brush_factory_view_spacing_update (GtkAdjustment *adjustment,
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PikaBrushFactoryView *view)
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{
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PikaContainerEditor *editor = PIKA_CONTAINER_EDITOR (view);
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PikaContext *context;
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PikaBrush *brush;
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context = pika_container_view_get_context (editor->view);
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brush = pika_context_get_brush (context);
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if (brush && view->change_brush_spacing)
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{
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g_signal_handlers_block_by_func (brush,
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pika_brush_factory_view_spacing_changed,
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view);
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pika_brush_set_spacing (brush, gtk_adjustment_get_value (adjustment));
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g_signal_handlers_unblock_by_func (brush,
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pika_brush_factory_view_spacing_changed,
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view);
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}
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g_signal_emit (view, pika_brush_factory_view_signals[SPACING_CHANGED], 0);
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}
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