256 lines
7.5 KiB
C
256 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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* PikaImageCommentEditor
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* Copyright (C) 2007 Sven Neumann <sven@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 "libpikabase/pikabase.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "config/pikacoreconfig.h"
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#include "core/pika.h"
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#include "core/pikaimage.h"
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#include "core/pikatemplate.h"
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#include "pikaimagecommenteditor.h"
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#include "pika-intl.h"
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#define PIKA_IMAGE_COMMENT_PARASITE "pika-comment"
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static void pika_image_comment_editor_update (PikaImageParasiteView *view);
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static void pika_image_comment_editor_buffer_changed (GtkTextBuffer *buffer,
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PikaImageCommentEditor *editor);
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static void pika_image_comment_editor_use_default_comment (GtkWidget *button,
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PikaImageCommentEditor *editor);
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G_DEFINE_TYPE (PikaImageCommentEditor,
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pika_image_comment_editor, PIKA_TYPE_IMAGE_PARASITE_VIEW)
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static void
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pika_image_comment_editor_class_init (PikaImageCommentEditorClass *klass)
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{
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PikaImageParasiteViewClass *view_class;
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view_class = PIKA_IMAGE_PARASITE_VIEW_CLASS (klass);
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view_class->update = pika_image_comment_editor_update;
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}
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static void
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pika_image_comment_editor_init (PikaImageCommentEditor *editor)
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{
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GtkWidget *vbox;
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GtkWidget *scrolled_window;
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GtkWidget *text_view;
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GtkWidget *button;
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/* Init */
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editor->recoursing = FALSE;
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/* Vbox */
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
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gtk_box_pack_start (GTK_BOX (editor), vbox, TRUE, TRUE, 0);
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gtk_widget_show (vbox);
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/* Scrolled winow */
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scrolled_window = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
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GTK_POLICY_AUTOMATIC,
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GTK_POLICY_AUTOMATIC);
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gtk_container_set_border_width (GTK_CONTAINER (scrolled_window), 2);
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gtk_box_pack_start (GTK_BOX (vbox), scrolled_window, TRUE, TRUE, 0);
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gtk_widget_show (scrolled_window);
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/* Text view */
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text_view = gtk_text_view_new ();
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gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), TRUE);
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gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_WORD);
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gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (text_view), 6);
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gtk_text_view_set_left_margin (GTK_TEXT_VIEW (text_view), 6);
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gtk_text_view_set_right_margin (GTK_TEXT_VIEW (text_view), 6);
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gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
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gtk_widget_show (text_view);
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/* Button */
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button = gtk_button_new_with_mnemonic (_("Use _default comment"));
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pika_help_set_help_data (GTK_WIDGET (button),
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_("Replace the current image comment with the "
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"default comment set in "
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"Edit→Preferences→Default Image."),
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NULL);
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gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, TRUE, 0);
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gtk_widget_show (button);
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g_signal_connect (button, "clicked",
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G_CALLBACK (pika_image_comment_editor_use_default_comment),
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editor);
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/* Buffer */
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editor->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
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g_signal_connect (editor->buffer, "changed",
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G_CALLBACK (pika_image_comment_editor_buffer_changed),
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editor);
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}
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/* public functions */
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GtkWidget *
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pika_image_comment_editor_new (PikaImage *image)
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{
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g_return_val_if_fail (PIKA_IS_IMAGE (image), NULL);
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return g_object_new (PIKA_TYPE_IMAGE_COMMENT_EDITOR,
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"image", image,
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"parasite", PIKA_IMAGE_COMMENT_PARASITE,
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NULL);
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}
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/* private functions */
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static void
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pika_image_comment_editor_update (PikaImageParasiteView *view)
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{
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PikaImageCommentEditor *editor = PIKA_IMAGE_COMMENT_EDITOR (view);
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const PikaParasite *parasite;
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if (editor->recoursing)
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return;
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g_signal_handlers_block_by_func (editor->buffer,
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pika_image_comment_editor_buffer_changed,
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editor);
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parasite = pika_image_parasite_view_get_parasite (view);
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if (parasite)
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{
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gchar *text;
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guint32 text_size;
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text = (gchar *) pika_parasite_get_data (parasite, &text_size);
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text = g_strndup (text, text_size);
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if (! g_utf8_validate (text, -1, NULL))
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{
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gchar *tmp = pika_any_to_utf8 (text, -1, NULL);
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g_free (text);
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text = tmp;
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}
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gtk_text_buffer_set_text (editor->buffer, text, -1);
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g_free (text);
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}
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else
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{
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gtk_text_buffer_set_text (editor->buffer, "", 0);
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}
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g_signal_handlers_unblock_by_func (editor->buffer,
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pika_image_comment_editor_buffer_changed,
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editor);
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}
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static void
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pika_image_comment_editor_buffer_changed (GtkTextBuffer *buffer,
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PikaImageCommentEditor *editor)
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{
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PikaImage *image;
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gchar *text;
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gint len;
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GtkTextIter start;
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GtkTextIter end;
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image =
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pika_image_parasite_view_get_image (PIKA_IMAGE_PARASITE_VIEW (editor));
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gtk_text_buffer_get_bounds (buffer, &start, &end);
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text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
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len = text ? strlen (text) : 0;
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editor->recoursing = TRUE;
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if (len > 0)
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{
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PikaParasite *parasite;
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parasite = pika_parasite_new (PIKA_IMAGE_COMMENT_PARASITE,
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PIKA_PARASITE_PERSISTENT,
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len + 1, text);
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pika_image_parasite_attach (image, parasite, TRUE);
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pika_parasite_free (parasite);
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}
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else
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{
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pika_image_parasite_detach (image, PIKA_IMAGE_COMMENT_PARASITE, TRUE);
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}
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editor->recoursing = FALSE;
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g_free (text);
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}
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static void
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pika_image_comment_editor_use_default_comment (GtkWidget *button,
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PikaImageCommentEditor *editor)
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{
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PikaImage *image;
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const gchar *comment = NULL;
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image = pika_image_parasite_view_get_image (PIKA_IMAGE_PARASITE_VIEW (editor));
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if (image)
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{
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PikaTemplate *template = image->pika->config->default_image;
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comment = pika_template_get_comment (template);
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}
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if (comment)
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gtk_text_buffer_set_text (editor->buffer, comment, -1);
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else
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gtk_text_buffer_set_text (editor->buffer, "", -1);
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}
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