gimp/app/widgets/gimpimagecommenteditor.c

249 lines
7.2 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpImageCommentEditor
* Copyright (C) 2007 Sven Neumann <sven@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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpimage.h"
#include "core/gimptemplate.h"
#include "gimpimagecommenteditor.h"
#include "gimp-intl.h"
#define GIMP_IMAGE_COMMENT_PARASITE "gimp-comment"
static void gimp_image_comment_editor_update (GimpImageParasiteView *view);
static void gimp_image_comment_editor_buffer_changed (GtkTextBuffer *buffer,
GimpImageCommentEditor *editor);
static void gimp_image_comment_editor_use_default_comment (GtkWidget *button,
GimpImageCommentEditor *editor);
G_DEFINE_TYPE (GimpImageCommentEditor,
gimp_image_comment_editor, GIMP_TYPE_IMAGE_PARASITE_VIEW)
static void
gimp_image_comment_editor_class_init (GimpImageCommentEditorClass *klass)
{
GimpImageParasiteViewClass *view_class;
view_class = GIMP_IMAGE_PARASITE_VIEW_CLASS (klass);
view_class->update = gimp_image_comment_editor_update;
}
static void
gimp_image_comment_editor_init (GimpImageCommentEditor *editor)
{
GtkWidget *vbox;
GtkWidget *scrolled_window;
GtkWidget *text_view;
GtkWidget *button;
/* Init */
editor->recoursing = FALSE;
/* Vbox */
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start (GTK_BOX (editor), vbox, TRUE, TRUE, 0);
gtk_widget_show (vbox);
/* Scrolled winow */
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_container_set_border_width (GTK_CONTAINER (scrolled_window), 2);
gtk_box_pack_start (GTK_BOX (vbox), scrolled_window, TRUE, TRUE, 0);
gtk_widget_show (scrolled_window);
/* Text view */
text_view = gtk_text_view_new ();
gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), TRUE);
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_WORD);
gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (text_view), 6);
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (text_view), 6);
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (text_view), 6);
gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
gtk_widget_show (text_view);
/* Button */
button = gtk_button_new_with_label (_("Use default comment"));
gimp_help_set_help_data (GTK_WIDGET (button),
_("Replace the current image comment with the "
"default comment set in "
"Edit→Preferences→Default Image."),
NULL);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (gimp_image_comment_editor_use_default_comment),
editor);
/* Buffer */
editor->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
g_signal_connect (editor->buffer, "changed",
G_CALLBACK (gimp_image_comment_editor_buffer_changed),
editor);
}
/* public functions */
GtkWidget *
gimp_image_comment_editor_new (GimpImage *image)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
return g_object_new (GIMP_TYPE_IMAGE_COMMENT_EDITOR,
"image", image,
"parasite", GIMP_IMAGE_COMMENT_PARASITE,
NULL);
}
/* private functions */
static void
gimp_image_comment_editor_update (GimpImageParasiteView *view)
{
GimpImageCommentEditor *editor = GIMP_IMAGE_COMMENT_EDITOR (view);
const GimpParasite *parasite;
if (editor->recoursing)
return;
g_signal_handlers_block_by_func (editor->buffer,
gimp_image_comment_editor_buffer_changed,
editor);
parasite = gimp_image_parasite_view_get_parasite (view);
if (parasite)
{
gchar *text = g_strndup (gimp_parasite_data (parasite),
gimp_parasite_data_size (parasite));
if (! g_utf8_validate (text, -1, NULL))
{
gchar *tmp = gimp_any_to_utf8 (text, -1, NULL);
g_free (text);
text = tmp;
}
gtk_text_buffer_set_text (editor->buffer, text, -1);
g_free (text);
}
else
{
gtk_text_buffer_set_text (editor->buffer, "", 0);
}
g_signal_handlers_unblock_by_func (editor->buffer,
gimp_image_comment_editor_buffer_changed,
editor);
}
static void
gimp_image_comment_editor_buffer_changed (GtkTextBuffer *buffer,
GimpImageCommentEditor *editor)
{
GimpImage *image;
gchar *text;
gint len;
GtkTextIter start;
GtkTextIter end;
image =
gimp_image_parasite_view_get_image (GIMP_IMAGE_PARASITE_VIEW (editor));
gtk_text_buffer_get_bounds (buffer, &start, &end);
text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
len = text ? strlen (text) : 0;
editor->recoursing = TRUE;
if (len > 0)
{
GimpParasite *parasite;
parasite = gimp_parasite_new (GIMP_IMAGE_COMMENT_PARASITE,
GIMP_PARASITE_PERSISTENT,
len + 1, text);
gimp_image_parasite_attach (image, parasite);
gimp_parasite_free (parasite);
}
else
{
gimp_image_parasite_detach (image, GIMP_IMAGE_COMMENT_PARASITE);
}
editor->recoursing = FALSE;
g_free (text);
}
static void
gimp_image_comment_editor_use_default_comment (GtkWidget *button,
GimpImageCommentEditor *editor)
{
GimpImage *image;
const gchar *comment = NULL;
image = gimp_image_parasite_view_get_image (GIMP_IMAGE_PARASITE_VIEW (editor));
if (image)
{
GimpTemplate *template = image->gimp->config->default_image;
comment = gimp_template_get_comment (template);
}
if (comment)
gtk_text_buffer_set_text (editor->buffer, comment, -1);
else
gtk_text_buffer_set_text (editor->buffer, "", -1);
}